@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --color-bg: #f7f7f4;
  --color-surface: #ffffff;
  --color-text: #101010;
  --color-muted: #6f6f68;
  --color-line: #deded8;
  --color-accent: #e11919;
  --color-accent-soft: #fff0f0;
  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --max-width: 1040px;
  --space-page: clamp(20px, 4vw, 40px);
  --header-height: 74px;
  --duration-fast: 220ms;
  --duration-medium: 420ms;
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --radius: 8px;
}

:root[data-theme="dark"] {
  --color-bg: #11110f;
  --color-surface: #181816;
  --color-text: #f4f3ee;
  --color-muted: #a7a59b;
  --color-line: #34342f;
  --color-accent: #ff3737;
  --color-accent-soft: #2a1515;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
  background: var(--color-accent);
}

html::after {
  content: "";
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  opacity: 0.025;
  pointer-events: none;
  z-index: 99999;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

body {
  --hero-pointer-x: 50%;
  --hero-pointer-y: 42%;
  --hero-scroll: 0;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

:root[data-theme="dark"] body {
  background: var(--color-bg);
}

.ambient-glow,
.tech-marks {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.ambient-glow {
  z-index: -3;
  width: clamp(600px, 58vw, 780px);
  height: clamp(600px, 58vw, 780px);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%,
      rgba(225, 25, 25, 0.13) 0%,
      rgba(179, 42, 37, 0.075) 28%,
      rgba(17, 17, 15, 0.035) 54%,
      transparent 72%);
  filter: blur(130px);
  opacity: 0.92;
  transform: translate3d(calc(50vw - 50%), calc(42vh - 50%), 0);
  will-change: transform, opacity;
}

body.is-scrolling .ambient-glow {
  will-change: auto;
}

:root[data-theme="dark"] .ambient-glow {
  background:
    radial-gradient(circle at 50% 50%,
      rgba(255, 55, 55, 0.18) 0%,
      rgba(92, 12, 12, 0.16) 34%,
      rgba(0, 0, 0, 0.18) 58%,
      transparent 74%);
  opacity: 0.72;
  filter: blur(150px);
}

/* Grid overlay SVG */
#grid-overlay {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 1;
}

.tech-marks {
  z-index: 3;
}

.tech-mark {
  position: absolute;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1;
  opacity: 0.34;
  text-transform: uppercase;
  user-select: none;
}

.tech-mark--hero {
  top: calc(var(--header-height) + 30px);
  left: var(--space-page);
}

.tech-mark--system {
  top: calc(var(--header-height) + 30px);
  right: var(--space-page);
}

.tech-mark--coords {
  right: var(--space-page);
  bottom: 96px;
  writing-mode: vertical-rl;
}

.tech-mark--clock {
  left: var(--space-page);
  bottom: 96px;
}

a {
  color: inherit;
  text-decoration: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.site-line {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  height: 3px;
  background: var(--color-accent);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 15;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
  height: var(--header-height);
  padding: 0 var(--space-page);
  background: rgba(235, 235, 235, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

html[data-theme="dark"] .site-header {
  background: rgba(18, 18, 18, 0.88);
}

.header-actions {
  grid-column: 1;
  justify-self: start;
  display: flex;
  gap: 6px;
  align-items: center;
}

.rotary-knob {
  --scroll-rot: 0deg;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid color-mix(in srgb, var(--color-text) 22%, var(--color-line));
  border-radius: 50%;
  padding: 0;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.24), rgba(16, 16, 16, 0.08)),
    var(--color-surface);
  color: var(--color-muted);
  cursor: grab;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.42),
    inset 0 -7px 14px rgba(16, 16, 16, 0.08),
    0 6px 18px rgba(16, 16, 16, 0.08);
  transform: rotate(var(--scroll-rot));
  transition: border-color var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.rotary-knob:hover,
.rotary-knob:focus-visible,
.rotary-knob.is-dragging {
  border-color: color-mix(in srgb, var(--color-accent) 58%, var(--color-line));
  color: var(--color-text);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -7px 14px rgba(16, 16, 16, 0.1),
    0 0 0 1px rgba(179, 42, 37, 0.12),
    0 10px 28px rgba(179, 42, 37, 0.14);
}

.rotary-knob.is-dragging {
  cursor: grabbing;
}

.rotary-knob svg {
  display: block;
  width: 30px;
  height: 30px;
  overflow: visible;
}

.rotary-knob__outer,
.rotary-knob__inner {
  fill: none;
  stroke: currentColor;
}

.rotary-knob__outer {
  stroke-width: 2.5;
}

.rotary-knob__inner {
  opacity: 0.48;
  stroke-width: 1.2;
}

.rotary-knob__grip,
.rotary-knob__indicator {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
}

.rotary-knob__grip {
  opacity: 0.54;
  stroke-width: 1.7;
}

.rotary-knob__indicator {
  color: var(--color-accent);
  stroke-width: 3.4;
}

.utility-button {
  min-width: 44px;
  height: 34px;
  padding: 0 11px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--color-muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out);
}

.utility-button:hover,
.utility-button:focus-visible {
  border-color: var(--color-accent);
  background: color-mix(in srgb, var(--color-accent) 7%, transparent);
  color: var(--color-text);
}

.brand {
  grid-column: 2;
  justify-self: center;
  padding: 8px 10px;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1;
  transition: color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.brand::after {
  content: ".";
  color: var(--color-accent);
}

.brand:hover,
.brand:focus-visible {
  color: var(--color-accent);
  transform: translateY(-1px);
}

.site-nav {
  grid-column: 3;
  justify-self: end;
  display: flex;
  justify-content: flex-end;
  gap: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

.nav-link {
  position: relative;
  isolation: isolate;
  display: inline-grid;
  min-height: 38px;
  place-items: center;
  overflow: visible;
  padding: 0 8px;
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-link::after {
  content: "";
  position: absolute;
  right: 8px;
  bottom: 4px;
  left: 8px;
  border-bottom: 2px solid var(--color-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--duration-fast) var(--ease-out);
}

.nav-link span {
  transition: none;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-text);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  transform: scaleX(1);
}

.nav-link.is-active {
  color: var(--color-accent);
}

.nav-link.is-active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  place-items: center;
  gap: 4px;
  padding: 10px;
  border: 1px solid var(--color-line);
  background: var(--color-bg);
  color: var(--color-text);
}

.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
}

main,
.site-footer {
  width: min(var(--max-width), calc(100% - var(--space-page) * 2));
  margin: 0 auto;
}

.hero {
  position: relative;
  display: grid;
  isolation: isolate;
  min-height: calc(100vh - var(--header-height) - 3px);
  min-height: calc(100svh - var(--header-height) - 3px);
  padding: clamp(52px, 10vh, 104px) 0 28px;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.hero::before {
  inset: clamp(20px, 5vw, 62px) auto auto 50%;
  z-index: -2;
  width: min(86vw, 820px);
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  border-radius: 50%;
  opacity: calc(0.5 - var(--hero-scroll) * 0.22);
  transform:
    translateX(-50%)
    translateY(calc(var(--hero-scroll) * -26px))
    scale(calc(1 + var(--hero-scroll) * 0.08));
}

.hero::after {
  inset: 10% -8% auto;
  z-index: -3;
  height: 68%;
  background:
    linear-gradient(90deg, transparent 0 48%, color-mix(in srgb, var(--color-accent) 25%, transparent) 48% 52%, transparent 52%),
    radial-gradient(circle at 50% 42%, color-mix(in srgb, var(--color-accent) 18%, transparent), transparent 42%);
  opacity: 0.42;
  transform: translateY(0);
}

.hero__visual {
  position: absolute;
  inset: clamp(10px, 3vw, 28px) 0 0;
  z-index: -1;
  pointer-events: none;
  transform: translateY(calc(var(--hero-scroll) * -12px));
}

body.is-scrolling .hero::before,
body.is-scrolling .hero::after,
body.is-scrolling .hero__visual,
body.is-scrolling .signal-field__ring,
body.is-scrolling .signal-field__node {
  animation-play-state: paused;
}

body.is-scrolling .hero::after {
  opacity: 0.28;
}

.signal-field {
  --kinetic-x: 0;
  --kinetic-y: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(74vw, 620px);
  aspect-ratio: 1;
  transform:
    translate(-50%, -50%)
    translate(calc(var(--kinetic-x) * 16px), calc(var(--kinetic-y) * 12px))
    rotate(calc(var(--kinetic-x) * 2deg));
  transition: transform 900ms var(--ease-out);
}

.signal-field__ring,
.signal-field__axis,
.signal-field__node {
  position: absolute;
  display: block;
}

.signal-field__ring {
  inset: 0;
  border: 1px solid color-mix(in srgb, var(--color-text) 11%, transparent);
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 0 56%, color-mix(in srgb, var(--color-accent) 5%, transparent) 57% 59%, transparent 60%),
    conic-gradient(from 120deg, transparent 0 14%, color-mix(in srgb, var(--color-accent) 42%, transparent) 15% 17%, transparent 18% 62%, color-mix(in srgb, var(--color-text) 16%, transparent) 63% 64%, transparent 65%);
  mask-image: radial-gradient(circle, transparent 0 44%, #000 45%);
  opacity: 0.72;
  animation: signal-rotate 26s linear infinite;
}

.signal-field__ring--inner {
  inset: 18%;
  opacity: 0.52;
  animation-duration: 18s;
  animation-direction: reverse;
}

.signal-field__axis {
  background: color-mix(in srgb, var(--color-text) 10%, transparent);
  opacity: 0.62;
}

.signal-field__axis--x {
  top: 50%;
  right: 8%;
  left: 8%;
  height: 1px;
}

.signal-field__axis--y {
  top: 8%;
  bottom: 8%;
  left: 50%;
  width: 1px;
}

.signal-field__node {
  width: clamp(8px, 1.1vw, 13px);
  height: clamp(8px, 1.1vw, 13px);
  border: 1px solid var(--color-accent);
  border-radius: 50%;
  background: var(--color-bg);
  box-shadow: 0 0 0 8px color-mix(in srgb, var(--color-accent) 10%, transparent);
  animation: node-pulse 2.8s var(--ease-out) infinite;
}

.signal-field__node--one {
  top: 17%;
  left: 28%;
}

.signal-field__node--two {
  right: 18%;
  bottom: 28%;
  animation-delay: 520ms;
}

.signal-field__node--three {
  bottom: 14%;
  left: 40%;
  animation-delay: 920ms;
}

.hero-readout {
  position: absolute;
  display: grid;
  gap: 4px;
  min-width: 148px;
  border-top: 1px solid color-mix(in srgb, var(--color-text) 18%, transparent);
  padding-top: 8px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: calc(0.8 - var(--hero-scroll) * 0.3);
}

.hero-readout strong {
  color: var(--color-text);
  font-size: 11px;
  font-weight: 700;
}

.hero-readout--left {
  left: 0;
  bottom: 22%;
}

.hero-readout--right {
  right: 0;
  top: 21%;
  text-align: right;
}

.page {
  min-height: calc(100svh - var(--header-height) - 3px);
  padding: clamp(18px, 3vw, 34px) 0 clamp(72px, 10vw, 120px);
}

.page-heading {
  display: grid;
  gap: 14px;
  max-width: 900px;
  padding: 0 0 22px;
}

.page-heading h1 {
  border-left: 12px solid #b32a25;
  margin: 0;
  padding-left: 1.5rem;
  font-size: clamp(1.9rem, 4.5vw, 2.6rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.page-heading p {
  max-width: 650px;
  margin: 0;
  color: var(--color-muted);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.72;
}

.page-hero {
  display: grid;
  gap: 18px;
  max-width: 820px;
  padding: clamp(34px, 6vw, 72px) 0 clamp(42px, 7vw, 84px);
}

.page-hero h1 {
  margin: 0;
  font-size: clamp(48px, 9vw, 116px);
  font-weight: 920;
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.page-hero p {
  max-width: 650px;
  margin: 0;
  color: var(--color-muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.75;
}

.page-panel {
  border-top: 1px solid var(--color-line);
  padding-top: clamp(28px, 5vw, 48px);
}

.page-lede {
  max-width: 760px;
  margin: 0;
  color: var(--color-text);
  font-size: clamp(21px, 3vw, 34px);
  font-weight: 780;
  line-height: 1.32;
}

.blog-page {
  padding-top: clamp(18px, 3vw, 34px);
}

.blog-tools {
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  gap: clamp(16px, 3vw, 34px);
  align-items: end;
  border-top: 1px solid var(--color-line);
  padding: 18px 0 20px;
}

.search-field {
  display: grid;
  gap: 8px;
}

.search-field span,
.blog-results__meta {
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.search-field input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--color-line);
  border-radius: 0;
  background: color-mix(in srgb, var(--color-surface) 70%, transparent);
  color: var(--color-text);
  font: inherit;
  font-size: 16px;
  outline: 0;
  padding: 0 14px;
  transition: border-color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out);
}

.search-field input:focus {
  border-color: var(--color-accent);
  background: var(--color-surface);
}

.search-field input::placeholder {
  color: color-mix(in srgb, var(--color-muted) 70%, transparent);
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-pill,
.clear-filter {
  border: 1px solid var(--color-line);
  background: transparent;
  color: var(--color-muted);
  font: inherit;
  font-size: 12px;
  font-weight: 820;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.tag-pill {
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
}

.tag-pill:hover,
.tag-pill:focus-visible,
.tag-pill.is-active {
  border-color: color-mix(in srgb, var(--color-accent) 56%, var(--color-line));
  background: color-mix(in srgb, var(--color-accent) 7%, transparent);
  color: var(--color-text);
}

.tag-pill:hover,
.tag-pill:focus-visible {
  transform: translateY(-1px);
}

.blog-results {
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--color-line);
  padding-top: 14px;
}

.blog-results__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.clear-filter {
  border: 0;
  padding: 0;
  text-transform: uppercase;
}

.clear-filter:hover,
.clear-filter:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.article-list--archive .article-item {
  min-height: 126px;
  padding: 18px 0;
}

.article-item__summary {
  max-width: 680px;
  color: var(--color-muted);
  font-size: 15px;
  line-height: 1.7;
}

.article-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.article-item__tags span {
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 820;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.article-item.is-hidden {
  display: none;
}

.empty-state {
  margin: 28px 0 0;
  border-top: 1px solid var(--color-line);
  padding-top: 22px;
  color: var(--color-muted);
}

.post-page {
  min-height: calc(100svh - var(--header-height));
}

.post-shell {
  width: min(100%, 860px);
  margin: 0 auto;
  padding: clamp(34px, 7vw, 86px) 0 clamp(60px, 8vw, 110px);
}

.post-back {
  display: inline-flex;
  margin-bottom: clamp(26px, 5vw, 54px);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.post-back:hover,
.post-back:focus-visible {
  color: var(--color-accent);
}

.post-header {
  border-bottom: 1px solid color-mix(in srgb, var(--color-text) 14%, transparent);
  padding-bottom: clamp(22px, 4vw, 42px);
}

.post-header h1 {
  max-width: 820px;
  margin: 12px 0 18px;
  font-size: clamp(42px, 8vw, 84px);
  line-height: 0.94;
  letter-spacing: 0;
}

.post-header p {
  max-width: 680px;
  margin: 0 0 18px;
  color: var(--color-muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.75;
}

.post-content {
  display: grid;
  gap: 18px;
  max-width: 740px;
  padding-top: clamp(30px, 5vw, 58px);
  color: var(--color-text);
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.88;
}

.post-content h2,
.post-content h3,
.post-content h4 {
  margin: 28px 0 0;
  line-height: 1.18;
  letter-spacing: 0;
}

.post-content h2 {
  font-size: clamp(26px, 4vw, 40px);
}

.post-content h3 {
  font-size: clamp(21px, 3vw, 28px);
}

.post-content h4 {
  font-size: clamp(18px, 2.4vw, 22px);
}

.post-content p,
.post-content ul,
.post-content ol,
.post-content blockquote,
.post-content hr {
  margin: 0;
}

.post-content ul,
.post-content ol {
  display: grid;
  gap: 8px;
  padding-left: 1.2em;
}

.post-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 8px 0 8px 18px;
  color: var(--color-muted);
}

.post-content blockquote p + p {
  margin-top: 8px;
}

.post-content hr {
  width: 100%;
  border: 0;
  border-top: 1px solid color-mix(in srgb, var(--color-text) 16%, transparent);
}

.post-content li::marker {
  color: var(--color-accent);
}

.post-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.post-image {
  display: grid;
  gap: 9px;
  margin: 10px 0;
}

.post-image img,
.post-inline-image {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-surface) 58%, transparent);
}

.post-image figcaption {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.55;
  text-transform: uppercase;
}

.post-inline-image {
  margin: 8px 0;
}

.post-content code {
  border: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
  border-radius: 4px;
  padding: 0.05em 0.32em;
  background: color-mix(in srgb, var(--color-surface) 78%, transparent);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.post-content pre {
  position: relative;
  overflow: auto;
  margin: 4px 0;
  border: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
  border-radius: var(--radius);
  padding: 18px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--color-accent) 6%, transparent), transparent 38%),
    color-mix(in srgb, var(--color-surface) 78%, var(--color-bg));
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.78;
}

.post-content pre code {
  display: block;
  border: 0;
  border-radius: 0;
  padding: 0;
  background: transparent;
  font-size: inherit;
  white-space: pre;
}

.code-copy-button {
  position: sticky;
  top: 8px;
  float: right;
  z-index: 2;
  margin: -8px -8px 8px 8px;
  border: 1px solid color-mix(in srgb, var(--color-text) 14%, transparent);
  border-radius: var(--radius);
  padding: 6px 9px;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  color: var(--color-muted);
  font: inherit;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
  opacity: 0;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}

.post-content pre:hover .code-copy-button,
.post-content pre:focus-within .code-copy-button,
.code-copy-button.is-copied {
  opacity: 1;
}

.code-copy-button:hover,
.code-copy-button:focus-visible,
.code-copy-button.is-copied {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.read-recovery {
  position: fixed;
  right: max(18px, var(--space-page));
  bottom: max(18px, var(--space-page));
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: min(420px, calc(100vw - 32px));
  border: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
  border-radius: var(--radius);
  padding: 10px;
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  box-shadow: 0 18px 50px color-mix(in srgb, var(--color-text) 12%, transparent);
  color: var(--color-text);
  font-size: 13px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--duration-medium) var(--ease-out), transform var(--duration-medium) var(--ease-out);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.read-recovery.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.read-recovery span {
  padding-inline: 4px 8px;
}

.read-recovery button {
  min-height: 30px;
  border: 1px solid color-mix(in srgb, var(--color-text) 14%, transparent);
  border-radius: var(--radius);
  padding: 0 10px;
  background: transparent;
  color: var(--color-muted);
  font: inherit;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

.read-recovery button:hover,
.read-recovery button:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.post-comments {
  max-width: 740px;
  margin: clamp(34px, 7vw, 74px) auto 0;
  border-top: 1px solid color-mix(in srgb, var(--color-text) 14%, transparent);
  padding-top: clamp(24px, 4vw, 38px);
}

.post-comments__head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.post-comments__head span {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.post-comments__head h2 {
  margin: 0;
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.18;
}

.giscus-slot,
.guestbook-comments {
  color-scheme: light dark;
  border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  border-radius: var(--radius);
  padding: 10px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--color-accent) 5%, transparent), transparent 44%),
    color-mix(in srgb, var(--color-surface) 35%, transparent);
}

.giscus-placeholder {
  margin: 0;
  padding: 16px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.owner-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: stretch;
  gap: 0;
  width: min(100%, 740px);
  margin: calc(clamp(26px, 5vw, 54px) * -0.5) 0 clamp(24px, 4vw, 40px);
  border-block: 1px solid color-mix(in srgb, var(--color-text) 14%, transparent);
  background: color-mix(in srgb, var(--color-background) 92%, transparent);
}

.owner-toolbar--archive {
  width: 100%;
  margin: 0 0 clamp(18px, 3vw, 28px);
}

.owner-toolbar__identity {
  display: grid;
  align-content: center;
  gap: 2px;
  min-height: 58px;
  padding: 10px 16px 10px 0;
}

.owner-toolbar__identity span,
.post-editor__identity span {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.owner-toolbar__identity strong,
.post-editor__identity strong {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.owner-toolbar__actions {
  display: flex;
  align-items: stretch;
  border-left: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
}

.owner-toolbar__button,
.owner-toolbar__link,
.post-editor__button,
.post-editor__ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border: 0;
  border-left: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
  border-radius: 0;
  padding: 0 16px;
  background: transparent;
  color: var(--color-text);
  font: inherit;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.owner-toolbar__button:first-child,
.post-editor__ghost:first-child {
  border-left: 0;
}

.owner-toolbar__link,
.post-editor__ghost,
.owner-toolbar__button--danger {
  color: var(--color-muted);
}

.post-editor__button {
  background: var(--color-text);
  color: var(--color-bg);
}

.owner-toolbar__button:hover,
.owner-toolbar__button:focus-visible,
.owner-toolbar__link:hover,
.owner-toolbar__link:focus-visible,
.post-editor__button:hover,
.post-editor__button:focus-visible,
.post-editor__ghost:hover,
.post-editor__ghost:focus-visible {
  background: color-mix(in srgb, var(--color-accent) 7%, transparent);
  color: var(--color-accent);
}

.owner-toolbar button:disabled {
  cursor: wait;
  opacity: 0.54;
}

.post-editor {
  max-width: 860px;
  margin: 0 0 clamp(32px, 6vw, 64px);
  border-block: 1px solid color-mix(in srgb, var(--color-text) 16%, transparent);
  padding: clamp(18px, 3vw, 30px) 0;
  background: transparent;
}

.post-editor__form {
  display: grid;
  gap: 18px;
}

.post-editor__top,
.post-editor__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.post-editor label > span,
.post-editor__status {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.post-editor__primary {
  display: grid;
  gap: 14px;
  border-top: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent);
  padding-top: 18px;
}

.post-editor label {
  display: grid;
  gap: 8px;
}

.post-editor input[type="text"],
.post-editor input[type="date"],
.post-editor textarea {
  width: 100%;
  border: 1px solid color-mix(in srgb, var(--color-text) 16%, transparent);
  border-radius: 0;
  padding: 12px 13px;
  background: color-mix(in srgb, var(--color-surface) 58%, transparent);
  color: var(--color-text);
  font: inherit;
  font-size: 15px;
  line-height: 1.6;
}

.post-editor textarea[name="body"] {
  min-height: 420px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  resize: vertical;
}

.post-editor input:focus,
.post-editor textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--color-accent) 34%, transparent);
  outline-offset: 2px;
}

.post-editor__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.post-editor__check {
  display: flex;
  grid-template-columns: none;
  align-items: center;
  gap: 10px;
  width: fit-content;
}

.post-editor__check input {
  accent-color: var(--color-accent);
}

.post-editor__preview {
  max-width: none;
  border-top: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
  padding-top: 22px;
}

.post-editor__actions {
  border-top: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent);
  padding-top: 14px;
}

.post-editor__file {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.post-editor__actions .post-editor__status {
  margin-right: auto;
}

.post-editor__status[data-tone="success"] {
  color: #167a3a;
}

.post-editor__status[data-tone="error"] {
  color: var(--color-accent);
}

@media (max-width: 680px) {
  .owner-toolbar {
    grid-template-columns: 1fr;
  }

  .owner-toolbar__identity {
    min-height: 52px;
    padding-right: 0;
  }

  .owner-toolbar__actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
    border-left: 0;
  }

  .owner-toolbar--archive .owner-toolbar__actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .owner-toolbar__button,
  .owner-toolbar__link,
  .post-editor__button,
  .post-editor__ghost {
    min-width: 0;
    padding-inline: 10px;
    text-align: center;
  }

  .owner-toolbar__button:first-child {
    border-left: 0;
  }

  .post-editor__grid {
    grid-template-columns: 1fr;
  }

  .post-editor__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .post-editor__actions .post-editor__status {
    grid-column: 1 / -1;
    min-height: 18px;
  }
}

.hero__content {
  display: grid;
  justify-items: center;
  align-self: center;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
  transform: translateY(calc(var(--hero-scroll) * -18px));
}

.kicker,
.section-index,
.article-item__number,
.project-card__tag {
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kicker {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.kicker::before,
.kicker::after {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.45;
}

.hero__title {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, auto) auto;
  column-gap: 0.16em;
  align-items: center;
  justify-content: center;
  min-height: clamp(104px, 15vw, 172px);
  width: min(100%, 980px);
  margin: 16px auto 16px;
  font-size: clamp(42px, 8.7vw, 100px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: 0;
  text-align: center;
  text-shadow: 0 18px 50px color-mix(in srgb, var(--color-accent) 12%, transparent);
}

.typewriter {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: center;
  gap: 0.04em 0.16em;
  max-width: min(100%, 13.5ch);
  min-width: 0;
  min-height: 1.96em;
  text-wrap: balance;
}

.word-unit {
  display: inline-flex;
  flex-shrink: 0;
  overflow: hidden;
  clip-path: inset(0 0 0 0);
  vertical-align: baseline;
}

.word-char {
  display: inline-block;
  transform: translateY(112%);
  opacity: 0;
  clip-path: inset(100% 0 0 0);
  animation: horizon-reveal 760ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  animation-delay: calc(var(--char-index, 0) * 34ms);
  will-change: transform, opacity, clip-path;
}

.word-char.is-exiting {
  animation: horizon-exit 520ms cubic-bezier(0.3, 0, 1, 1) forwards;
  animation-delay: calc(var(--char-index, 0) * 18ms);
}

.word-space {
  display: inline-block;
  width: 0;
}

.capsule-maki {
  position: relative;
  z-index: 0;
  display: inline-flex;
  overflow: visible;
  border-radius: 999px;
  margin-inline: -0.025em;
  padding: 0 0.12em;
  color: inherit;
  transform: translateZ(0);
  transition:
    color 150ms var(--ease-out),
    transform 150ms cubic-bezier(0.34, 1.56, 0.64, 1);
  will-change: transform, color;
}

.capsule-maki::before {
  content: "";
  position: absolute;
  inset: -0.04em -0.1em;
  z-index: -1;
  border-radius: 999px;
  background: var(--color-accent);
  opacity: 0;
  transform: scale(0.8);
  transition:
    opacity 150ms var(--ease-out),
    transform 150ms cubic-bezier(0.34, 1.56, 0.64, 1);
  will-change: transform, opacity;
}

.capsule-maki:hover,
.capsule-maki:focus-visible {
  color: #ffffff;
  transform: scaleX(1.05) translateY(-0.02em) translateZ(0);
}

.capsule-maki:hover::before,
.capsule-maki:focus-visible::before {
  opacity: 1;
  transform: scale(1);
}

.cursor {
  display: inline-block;
  width: clamp(8px, 0.12em, 12px);
  height: clamp(8px, 0.12em, 12px);
  border-radius: 50%;
  transform: translateY(0.12em);
  background: var(--color-accent);
  animation: cursor-blink 1s steps(2, start) infinite;
}

.hero__intro {
  max-width: 660px;
  margin: 0 auto;
  color: var(--color-muted);
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.75;
  text-wrap: balance;
}

.hero__footer {
  align-self: end;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  border-top: 1px solid var(--color-line);
  padding-top: 18px;
}

.hero__footer-status {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scroll-cue {
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.scroll-cue:hover {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.scroll-indicator {
  position: absolute;
  right: 50%;
  bottom: 20px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 48px;
  color: var(--color-muted);
  transform: translateX(50%);
  transition: color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.scroll-indicator:hover,
.scroll-indicator:focus-visible {
  color: var(--color-accent);
  transform: translateX(50%) translateY(-2px);
}

.scroll-indicator__mouse {
  position: relative;
  width: 22px;
  height: 34px;
  border: 1.5px solid currentColor;
  border-radius: 999px;
}

.scroll-indicator__mouse span {
  position: absolute;
  top: 7px;
  left: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  transform: translateX(-50%);
  animation: scroll-dot 1.6s var(--ease-out) infinite;
}

.home-content {
  width: min(900px, calc(100% - var(--space-page) * 2));
  margin: 0 auto;
  padding: 4rem 0;
}

.home-content::before {
  content: "";
  display: block;
  width: 100vw;
  height: 1px;
  margin: 0 0 clamp(40px, 8vw, 72px) 50%;
  background: linear-gradient(90deg, transparent, var(--color-line) 16%, var(--color-line) 84%, transparent);
  transform: translateX(-50%);
}

.home-section {
  margin-bottom: clamp(56px, 8vw, 86px);
}

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 620ms var(--ease-out), transform 620ms var(--ease-out);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.intro-writing {
  display: grid;
  grid-template-columns: minmax(260px, 0.4fr) minmax(0, 0.6fr);
  gap: 28px;
  align-items: start;
}

.profile-card,
.guestbook-panel {
  border: 1px solid var(--color-line);
  background: color-mix(in srgb, var(--color-surface) 78%, transparent);
  padding: clamp(20px, 3vw, 28px);
}

.profile-card {
  display: grid;
  gap: 18px;
  transform: translateY(0);
}

.profile-card:hover,
.profile-card:focus-visible-within {
  border-color: color-mix(in srgb, var(--color-accent) 28%, var(--color-line));
  box-shadow: 0 18px 60px color-mix(in srgb, var(--color-accent) 8%, transparent);
  transform: translateY(-4px);
}

.profile-card__avatar,
.friend-card__avatar {
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--color-text);
  color: var(--color-bg);
  font-weight: 900;
  line-height: 1;
}

.profile-card__avatar {
  width: 72px;
  height: 72px;
  font-size: 34px;
}

.profile-card h2 {
  margin: 0;
  font-size: clamp(32px, 5vw, 54px);
  line-height: 0.95;
}

.profile-card__title {
  margin: 6px 0 0;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 840;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.profile-card > p:not(.profile-card__title) {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.75;
}

.text-arrow-link {
  width: fit-content;
  color: var(--color-text);
  font-weight: 820;
  transition: color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.text-arrow-link:hover,
.text-arrow-link:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
  transform: translateX(2px);
}

.section-title-line {
  border-left: 6px solid #b32a25;
  margin: 0 0 18px;
  padding-left: 14px;
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 900;
  line-height: 1.1;
}

.writing-card-list {
  display: grid;
  border-top: 1px solid var(--color-line);
}

.writing-card {
  display: grid;
  gap: 8px;
  border-bottom: 1px solid var(--color-line);
  padding: 18px 0;
  transition: transform var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}

.writing-card:nth-child(1) {
  transition-delay: 40ms;
}

.writing-card:nth-child(2) {
  transition-delay: 90ms;
}

.writing-card:nth-child(3) {
  transition-delay: 140ms;
}

.writing-card:hover,
.writing-card:focus-visible {
  border-bottom-color: color-mix(in srgb, var(--color-accent) 44%, var(--color-line));
  transform: translateX(6px);
}

.writing-card__date {
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.writing-card h3 {
  margin: 0;
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1.18;
  transition: color var(--duration-fast) var(--ease-out);
}

.writing-card p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.68;
}

.writing-card:hover h3,
.writing-card:focus-visible h3 {
  color: var(--color-accent);
  text-decoration: none;
}

.writing-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.writing-card__tags span {
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 820;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.recent-writing > .text-arrow-link {
  margin-top: 18px;
}

.friends-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.friend-card {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-height: 112px;
  background: #e5e5e5;
  color: #101010;
  padding: 18px;
  transition: box-shadow var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

:root[data-theme="dark"] .friend-card {
  background: #262622;
  color: var(--color-text);
}

.friend-card__avatar {
  width: 46px;
  height: 46px;
  background: #b32a25;
  color: #ffffff;
}

.friend-card strong,
.friend-card small {
  display: block;
}

.friend-card strong {
  font-size: 16px;
}

.friend-card small {
  margin-top: 4px;
  color: var(--color-muted);
  line-height: 1.5;
}

.friend-card:hover,
.friend-card:focus-visible {
  box-shadow: 0 8px 24px rgba(16, 16, 16, 0.08);
  transform: translateY(-2px);
}

.friend-card:hover strong,
.friend-card:focus-visible strong {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.guestbook-panel {
  display: grid;
  gap: 16px;
}

.guestbook-panel p {
  margin: 0;
  color: var(--color-muted);
}

.guestbook-form {
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--color-line);
  padding-top: 18px;
}

.guestbook-field {
  display: grid;
}

.guestbook-field textarea {
  width: 100%;
  min-height: 148px;
  resize: vertical;
  border: 1px solid var(--color-line);
  border-radius: 0;
  background: color-mix(in srgb, var(--color-surface) 70%, transparent);
  color: var(--color-text);
  font: inherit;
  font-size: 16px;
  line-height: 1.65;
  outline: 0;
  padding: 14px;
  transition: border-color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out);
}

.guestbook-field textarea:focus {
  border-color: var(--color-accent);
  background: var(--color-surface);
}

.guestbook-field textarea::placeholder {
  color: color-mix(in srgb, var(--color-muted) 70%, transparent);
}

.guestbook-submit {
  justify-self: start;
  min-height: 40px;
  border: 1px solid var(--color-text);
  background: var(--color-text);
  color: var(--color-bg);
  font: inherit;
  font-size: 13px;
  font-weight: 820;
  padding: 0 18px;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.guestbook-submit:hover,
.guestbook-submit:focus-visible {
  border-color: var(--color-accent);
  background: var(--color-accent);
  transform: translateY(-1px);
}

.guestbook-status,
.guestbook-empty {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.guestbook-list {
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--color-line);
  padding-top: 18px;
}

.guestbook-entry {
  display: grid;
  gap: 8px;
  border-bottom: 1px solid var(--color-line);
  padding: 0 0 16px;
}

.guestbook-entry__meta {
  margin: 0;
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 820;
}

.guestbook-entry__body {
  margin: 0;
  color: var(--color-text);
  line-height: 1.72;
  white-space: pre-wrap;
}

.section {
  padding: clamp(54px, 9vw, 96px) 0;
  border-top: 1px solid var(--color-line);
}

.section-heading {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: clamp(16px, 3vw, 34px);
  align-items: baseline;
  margin-bottom: clamp(24px, 5vw, 42px);
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(28px, 5vw, 52px);
  line-height: 1.08;
  letter-spacing: 0;
}

.intro__text {
  max-width: 760px;
  margin: 0 0 0 clamp(64px, 8vw, 96px);
  color: var(--color-text);
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 760;
  line-height: 1.35;
}

.article-list {
  display: grid;
}

.article-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  min-height: 102px;
  border-top: 1px solid var(--color-line);
  transition: transform var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}

.article-item:last-child {
  border-bottom: 1px solid var(--color-line);
}

.article-item__content {
  display: grid;
  gap: 4px;
}

.article-item__title {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 850;
  line-height: 1.2;
  transition: color var(--duration-fast) var(--ease-out);
}

.article-item__meta {
  color: var(--color-muted);
  font-size: 14px;
}

.article-item__arrow {
  color: var(--color-muted);
  font-size: 24px;
  transition: color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.article-item:hover,
.article-item:focus-visible {
  border-color: color-mix(in srgb, var(--color-accent) 44%, var(--color-line));
  transform: translateX(8px);
}

.article-item:hover .article-item__title,
.article-item:hover .article-item__number,
.article-item:focus-visible .article-item__title,
.article-item:focus-visible .article-item__number {
  color: var(--color-accent);
}

.article-item:hover .article-item__arrow,
.article-item:focus-visible .article-item__arrow {
  color: var(--color-accent);
  transform: translate(3px, -3px);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.project-card {
  display: grid;
  align-content: start;
  min-height: 230px;
  padding: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
  transition: transform var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}

.project-card:hover,
.project-card:focus-visible {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.project-card h3 {
  margin: 42px 0 10px;
  font-size: 26px;
  line-height: 1.1;
}

.project-card p {
  margin: 0;
  color: var(--color-muted);
}

.about__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.about__layout p {
  margin: 0;
  font-size: clamp(19px, 2.8vw, 30px);
  font-weight: 760;
  line-height: 1.38;
}

.fact-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.fact-list li {
  border-top: 1px solid var(--color-line);
  padding-top: 14px;
  color: var(--color-muted);
}

.fact-list li > span:first-child {
  display: inline-block;
  min-width: 48px;
  color: var(--color-accent);
  font-weight: 800;
}

.fact-copy {
  color: var(--color-muted);
}

.about-composition {
  position: relative;
  width: min(var(--max-width), calc(100% - var(--space-page) * 2));
  min-height: calc(100svh - var(--header-height) - 3px);
  margin: 0 auto;
  padding: clamp(18px, 3vw, 34px) 0 clamp(72px, 10vw, 120px);
}

.composition-hero {
  padding: 0 0 22px;
}

.composition-hero h1 {
  border-left: 12px solid #b32a25;
  max-width: 900px;
  margin: 0;
  padding-left: 1.5rem;
  font-size: clamp(1.9rem, 4.5vw, 2.6rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.composition-grid {
  display: grid;
  grid-auto-flow: dense;
  gap: 13px;
  max-width: 900px;
  margin: 0 auto;
}

.composition-card {
  --tilt-x: 0;
  --tilt-y: 0;
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 0;
  background: #e5e5e5;
  color: var(--color-text);
  overflow: hidden;
  padding: 18px;
  transform:
    perspective(900px)
    rotateX(calc(var(--tilt-y) * -7deg))
    rotateY(calc(var(--tilt-x) * 7deg))
    scale(1);
  transition:
    background var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out),
    z-index var(--duration-fast) var(--ease-out);
}

.composition-card:focus-visible {
  outline: 2px solid #b32a25;
  outline-offset: 2px;
}

.composition-card h2 {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 16px;
  font-size: clamp(1.35rem, 3vw, 2.2rem);
  font-weight: 900;
  line-height: 1;
  text-align: center;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.composition-card p {
  max-height: 0;
  max-width: 210px;
  margin: 0;
  color: currentColor;
  font-size: clamp(0.78rem, 1.35vw, 0.95rem);
  font-weight: 740;
  line-height: 1.45;
  opacity: 0;
  overflow: hidden;
  text-align: center;
  transition: opacity var(--duration-fast) var(--ease-out), max-height var(--duration-fast) var(--ease-out);
}

.composition-card--s {
  grid-column: span 1;
  grid-row: span 1;
}

.composition-card--m {
  grid-column: span 2;
  grid-row: span 1;
}

.composition-card--l {
  grid-column: span 2;
  grid-row: span 2;
}

.composition-card--x {
  grid-column: span 1;
  grid-row: span 2;
}

@media (min-width: 768px) {
  .composition-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 128px;
  }
}

@media (min-width: 768px) and (hover: hover) and (pointer: fine) {
  .composition-card:hover,
  .composition-card:focus-visible {
    z-index: 10;
    background: #b32a25;
    color: #ffffff;
    outline: 0;
    transform:
      perspective(900px)
      rotateX(calc(var(--tilt-y) * -7deg))
      rotateY(calc(var(--tilt-x) * 7deg))
      scale(1.5);
  }

  .composition-card:hover h2,
  .composition-card:focus-visible h2 {
    opacity: 0;
  }

  .composition-card:hover p,
  .composition-card:focus-visible p {
    max-height: 160px;
    opacity: 1;
  }
}

.about-page {
  padding-top: clamp(28px, 5vw, 64px);
}

.about-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(220px, 0.85fr);
  gap: clamp(28px, 6vw, 90px);
  align-items: center;
  min-height: clamp(420px, 62svh, 620px);
  border-bottom: 1px solid var(--color-line);
  padding-bottom: clamp(42px, 7vw, 82px);
}

.about-stage__intro {
  display: grid;
  gap: 18px;
}

.about-stage h1 {
  margin: 0;
  font-size: clamp(62px, 13vw, 160px);
  font-weight: 940;
  line-height: 0.88;
  letter-spacing: 0;
}

.about-stage__intro p:not(.kicker) {
  max-width: 650px;
  margin: 0;
  color: var(--color-muted);
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.7;
}

.about-orbit {
  position: relative;
  display: grid;
  place-items: center;
  justify-self: end;
  width: min(100%, 320px);
  aspect-ratio: 1;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  color: var(--color-text);
  font-size: clamp(42px, 7vw, 72px);
  font-weight: 920;
}

.about-orbit::before,
.about-orbit::after {
  content: "";
  position: absolute;
  border: 1px solid var(--color-line);
  border-radius: 50%;
}

.about-orbit::before {
  inset: 24px;
}

.about-orbit::after {
  inset: 50%;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translate(-50%, -50%);
}

.about-orbit__dot {
  position: absolute;
  top: 15%;
  right: 18%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: orbit-pulse 2.8s var(--ease-out) infinite;
}

.about-board {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 12px;
  padding: clamp(28px, 6vw, 72px) 0;
}

.about-note {
  display: grid;
  align-content: space-between;
  min-height: 190px;
  border: 1px solid var(--color-line);
  background: color-mix(in srgb, var(--color-surface) 74%, transparent);
  padding: 20px;
}

.about-note--large {
  grid-row: span 2;
  min-height: 392px;
}

.about-note__label {
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 840;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.about-note p {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(20px, 3vw, 36px);
  font-weight: 820;
  line-height: 1.22;
}

.about-note:not(.about-note--large) p {
  color: var(--color-muted);
  font-size: clamp(17px, 2vw, 23px);
  font-weight: 720;
  line-height: 1.42;
}

.about-timeline {
  display: grid;
  border-top: 1px solid var(--color-line);
}

.timeline-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 20px;
  border-bottom: 1px solid var(--color-line);
  padding: 20px 0;
}

.timeline-row span {
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 860;
  letter-spacing: 0.08em;
}

.timeline-row p {
  max-width: 720px;
  margin: 0;
  color: var(--color-muted);
  font-size: clamp(17px, 2vw, 22px);
}

.site-footer {
  display: grid;
  gap: 18px;
  border-top: 1px solid var(--color-line);
  padding: 28px 0 44px;
  color: var(--color-muted);
  font-size: 14px;
}

.footer-social {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 0.35rem;
}

.footer-social .social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 0;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background-color: var(--color-bg);
  color: var(--color-text);
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  transform: translateZ(0);
  transition: background-color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
  will-change: transform;
}

.footer-social .social-link:hover,
.footer-social .social-link:focus-visible {
  border-color: #b32a25;
  background-color: color-mix(in srgb, var(--color-surface) 82%, var(--color-bg));
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  color: var(--color-text);
  text-decoration: none;
  transform: translateY(-1px) translateZ(0);
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
}

.social-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.social-label {
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  font-weight: 800;
}

.site-footer a:hover {
  color: var(--color-accent);
}

@keyframes cursor-blink {
  50% {
    opacity: 0;
  }
}

@keyframes horizon-reveal {
  0% {
    clip-path: inset(100% 0 0 0);
    opacity: 0;
    transform: translateY(112%);
  }

  58% {
    opacity: 1;
  }

  100% {
    clip-path: inset(0 0 0 0);
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes horizon-exit {
  0% {
    clip-path: inset(0 0 0 0);
    opacity: 1;
    transform: translateY(0);
  }

  100% {
    clip-path: inset(0 0 100% 0);
    opacity: 0;
    transform: translateY(-115%);
  }
}

@keyframes orbit-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.5);
    opacity: 0.55;
  }
}

@keyframes signal-rotate {
  to {
    transform: rotate(360deg);
  }
}

@keyframes node-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.86;
  }

  50% {
    transform: scale(1.42);
    opacity: 1;
  }
}

.kicker,
.writing-card__date,
.article-item__meta,
.article-item__number,
.writing-card__tags span,
.article-item__tags span,
.social-label {
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.profile-card,
.guestbook-panel,
.friend-card,
.project-card,
.composition-card {
  position: relative;
  border: 1px solid rgba(16, 16, 16, 0.05);
  background: rgba(255, 255, 255, 0.45);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.01);
  overflow: hidden;
  transition:
    background 520ms var(--ease-out),
    border-color 520ms var(--ease-out),
    box-shadow 520ms var(--ease-out),
    color 520ms var(--ease-out),
    transform 520ms var(--ease-out);
}

:root[data-theme="dark"] .profile-card,
:root[data-theme="dark"] .guestbook-panel,
:root[data-theme="dark"] .friend-card,
:root[data-theme="dark"] .project-card,
:root[data-theme="dark"] .composition-card {
  border: 1px solid rgba(244, 243, 238, 0.07);
  background: rgba(24, 24, 22, 0.45);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.composition-card::before,
.friend-card::before,
.project-card::before,
.profile-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(300px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(179, 42, 37, 0.08), transparent 80%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.composition-card:hover::before,
.friend-card:hover::before,
.project-card:hover::before,
.profile-card:hover::before {
  opacity: 1;
}

.friend-card > *,
.project-card > *,
.profile-card > * {
  position: relative;
  z-index: 1;
}

.composition-card h2,
.composition-card p,
.composition-widget > * {
  z-index: 1;
}

.composition-card:hover,
.composition-card:focus-visible {
  border-color: rgba(179, 42, 37, 0.34);
  background: rgba(179, 42, 37, 0.15);
  color: var(--color-text);
}

@media (min-width: 768px) and (hover: hover) and (pointer: fine) {
  .composition-card:hover,
  .composition-card:focus-visible {
    transform:
      perspective(900px)
      rotateX(calc(var(--tilt-y) * -7deg))
      rotateY(calc(var(--tilt-x) * 7deg))
      scale(1.03);
  }
}

.composition-widget {
  align-content: space-between;
  justify-items: start;
  place-items: initial;
  gap: 12px;
}

.composition-widget h2,
.composition-widget p {
  position: static;
}

.widget-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text);
  font-size: 0.78rem;
  font-weight: 760;
}

.widget-status__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2ecc71;
  box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.42);
  animation: pulse-dot 1.8s var(--ease-out) infinite;
}

.widget-clock,
.widget-weather,
.now-playing span {
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.widget-clock {
  font-size: clamp(1.55rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1;
}

.widget-weather {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-muted);
  font-size: 0.72rem;
}

.widget-weather svg {
  width: 38px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.composition-widget--music {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
}

.vinyl {
  width: clamp(54px, 8vw, 68px);
  height: clamp(54px, 8vw, 68px);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  opacity: 0.88;
  animation: spin 8s linear infinite;
}

.now-playing {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.now-playing span {
  color: var(--color-accent);
  font-size: 0.68rem;
  font-weight: 700;
}

.now-playing strong {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  line-height: 1.15;
}

.now-playing small {
  color: var(--color-muted);
  font-size: 0.78rem;
}

@keyframes pulse-dot {
  0% {
    box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.42);
  }

  70% {
    box-shadow: 0 0 0 9px rgba(46, 204, 113, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(46, 204, 113, 0);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* v3.2 inner-page upgrade */
.inner-page {
  --section-progress: 0;
  position: relative;
  isolation: isolate;
}

.inner-page::before,
.inner-page::after {
  content: "";
  position: fixed;
  pointer-events: none;
}

.inner-page::before {
  right: clamp(18px, 5vw, 72px);
  bottom: clamp(32px, 9vh, 96px);
  z-index: -2;
  width: min(36vw, 360px);
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  border-radius: 50%;
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), color-mix(in srgb, var(--color-accent) 22%, transparent) 50%, transparent calc(50% + 1px)),
    linear-gradient(0deg, transparent calc(50% - 1px), color-mix(in srgb, var(--color-text) 10%, transparent) 50%, transparent calc(50% + 1px));
  opacity: 0.64;
  transform: rotate(calc(var(--section-progress) * 24deg));
  transition: transform 420ms var(--ease-out);
}

.inner-page::after {
  inset: var(--header-height) 0 0;
  z-index: -3;
  background:
    linear-gradient(90deg, transparent 0 18%, color-mix(in srgb, var(--color-text) 4%, transparent) 18% calc(18% + 1px), transparent calc(18% + 1px)),
    linear-gradient(90deg, transparent 0 84%, color-mix(in srgb, var(--color-text) 4%, transparent) 84% calc(84% + 1px), transparent calc(84% + 1px)),
    linear-gradient(135deg, transparent 0 62%, color-mix(in srgb, var(--color-text) 4%, transparent) 62% calc(62% + 1px), transparent calc(62% + 1px));
}

.page-rail {
  position: fixed;
  top: 50%;
  left: clamp(12px, 2vw, 24px);
  z-index: 8;
  display: grid;
  gap: 8px;
  width: 112px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transform: translateY(-50%);
}

.page-rail a {
  position: relative;
  display: block;
  padding-left: 18px;
  opacity: 0.5;
  transition: color var(--duration-fast) var(--ease-out), opacity var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.page-rail a::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 9px;
  height: 1px;
  background: currentColor;
  transform: translateY(-50%);
  transition: width var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out);
}

.page-rail a.is-active,
.page-rail a:hover,
.page-rail a:focus-visible {
  color: var(--color-accent);
  opacity: 1;
  transform: translateX(3px);
}

.page-rail a.is-active::before,
.page-rail a:hover::before,
.page-rail a:focus-visible::before {
  width: 15px;
}

.page-heading,
.composition-hero {
  position: relative;
}

.page-heading__index {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-heading h1,
.composition-hero h1 {
  position: relative;
  width: fit-content;
}

.page-heading h1::after,
.composition-hero h1::after {
  content: attr(data-shadow);
  position: absolute;
  top: 0.14em;
  left: calc(100% + 0.5em);
  color: transparent;
  -webkit-text-stroke: 1px color-mix(in srgb, var(--color-text) 14%, transparent);
  text-stroke: 1px color-mix(in srgb, var(--color-text) 14%, transparent);
  opacity: calc(0.2 + var(--section-progress) * 0.25);
  white-space: nowrap;
  pointer-events: none;
}

[data-page-section] {
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.blog-page .page-heading,
.projects-page .page-heading,
.links-page .page-heading,
.guestbook-page .page-heading,
.about-composition .composition-hero {
  transform: translateY(0);
  transition: transform 700ms var(--ease-out), opacity 700ms var(--ease-out);
}

.blog-tools,
.blog-results,
.page-panel,
.composition-grid {
  position: relative;
}

.blog-tools {
  border: 1px solid color-mix(in srgb, var(--color-text) 7%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-surface) 48%, transparent);
  padding: 16px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.search-field input {
  border-radius: var(--radius);
}

.tag-pill {
  border-radius: var(--radius);
}

.article-list--archive {
  gap: 8px;
}

.archive-year {
  border: 1px solid color-mix(in srgb, var(--color-text) 7%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-surface) 34%, transparent);
  overflow: clip;
}

.archive-year.is-hidden {
  display: none;
}

.archive-year summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 54px;
  padding: 0 16px;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 820;
  letter-spacing: 0.08em;
  list-style: none;
  text-transform: uppercase;
  cursor: pointer;
}

.archive-year summary::-webkit-details-marker {
  display: none;
}

.archive-year summary::after {
  content: "+";
  color: var(--color-accent);
  font-size: 18px;
  line-height: 1;
}

.archive-year[open] summary::after {
  content: "-";
}

.archive-year summary small {
  margin-left: auto;
  color: var(--color-muted);
  font-size: 11px;
  font-weight: 800;
}

.archive-year__list {
  display: grid;
  gap: 8px;
  border-top: 1px solid color-mix(in srgb, var(--color-text) 7%, transparent);
  padding: 8px;
}

.article-list--archive .article-item {
  min-height: 102px;
  border: 0;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-surface) 48%, transparent);
  padding: 14px 16px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.article-list--archive .article-item:hover,
.article-list--archive .article-item:focus-visible {
  box-shadow: 0 16px 48px color-mix(in srgb, var(--color-accent) 8%, transparent);
  transform: translateY(-2px);
}

.article-item__title {
  font-size: clamp(20px, 2.35vw, 28px);
}

.article-item__summary {
  font-size: 14px;
  line-height: 1.58;
}

.article-item__tags {
  margin-top: 0;
}

.project-grid--mosaic {
  grid-template-columns: 1.18fr 0.82fr;
  grid-auto-rows: minmax(184px, auto);
}

.project-grid--mosaic .project-card {
  min-height: 242px;
}

.project-grid--mosaic .project-card:first-child {
  grid-row: span 2;
  min-height: 498px;
}

.project-card {
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--color-surface) 62%, transparent), color-mix(in srgb, var(--color-surface) 38%, transparent));
}

.project-card::after {
  content: "";
  position: absolute;
  right: 18px;
  bottom: 18px;
  width: 42px;
  height: 42px;
  border: 1px solid color-mix(in srgb, var(--color-text) 15%, transparent);
  border-radius: 50%;
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), color-mix(in srgb, var(--color-accent) 45%, transparent) 50%, transparent calc(50% + 1px)),
    linear-gradient(0deg, transparent calc(50% - 1px), color-mix(in srgb, var(--color-text) 20%, transparent) 50%, transparent calc(50% + 1px));
  opacity: 0.72;
  transition: transform var(--duration-medium) var(--ease-out);
}

.project-card:hover::after,
.project-card:focus-visible::after {
  transform: rotate(90deg);
}

.friends-grid--mosaic {
  grid-template-columns: repeat(6, 1fr);
}

.friends-grid--mosaic .friend-card {
  grid-column: span 2;
  min-height: 148px;
  border-radius: var(--radius);
}

.friends-grid--mosaic .friend-card:nth-child(2) {
  grid-column: span 3;
  transform: translateY(22px);
}

.friends-grid--mosaic .friend-card:nth-child(3) {
  grid-column: span 3;
}

.friend-card {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--color-surface) 58%, transparent), color-mix(in srgb, var(--color-surface) 38%, transparent));
}

.guestbook-layout {
  display: grid;
  grid-template-columns: minmax(180px, 0.34fr) minmax(0, 0.66fr);
  gap: clamp(16px, 3vw, 30px);
  align-items: stretch;
}

.guestbook-signal,
.guestbook-panel {
  border-radius: var(--radius);
}

.guestbook-signal {
  position: relative;
  display: grid;
  align-content: space-between;
  min-height: 330px;
  border: 1px solid color-mix(in srgb, var(--color-text) 7%, transparent);
  background: color-mix(in srgb, var(--color-surface) 46%, transparent);
  padding: 20px;
  overflow: hidden;
}

.guestbook-signal::before {
  content: "";
  position: absolute;
  inset: auto -22% -30% auto;
  width: 220px;
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--color-accent) 34%, transparent);
  border-radius: 50%;
}

.guestbook-signal span,
.guestbook-signal strong {
  position: relative;
  z-index: 1;
}

.guestbook-signal span {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.guestbook-signal strong {
  max-width: 8ch;
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 920;
  line-height: 0.95;
}

.guestbook-signal i {
  position: absolute;
  right: 32px;
  bottom: 32px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.9;
}

.guestbook-field textarea {
  border-radius: var(--radius);
}

.composition-hero {
  display: grid;
  gap: 14px;
}

.composition-grid {
  padding-top: clamp(4px, 1vw, 10px);
}

.composition-card {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--color-surface) 50%, transparent), color-mix(in srgb, var(--color-surface) 36%, transparent));
}

.composition-widget {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--color-surface) 50%, transparent), color-mix(in srgb, var(--color-surface) 36%, transparent));
}

/* v3.2.1 mechanical scroll and geometric field */
.inner-page {
  --scroll-progress: 0;
}

.inner-page::before {
  top: clamp(108px, 18vh, 180px);
  right: clamp(18px, 7vw, 96px);
  bottom: auto;
  width: min(30vw, 320px);
  border-radius: 0;
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), color-mix(in srgb, var(--color-accent) 28%, transparent) 50%, transparent calc(50% + 1px)),
    linear-gradient(0deg, transparent calc(50% - 1px), color-mix(in srgb, var(--color-text) 14%, transparent) 50%, transparent calc(50% + 1px));
  opacity: 0.48;
  transform:
    rotate(calc(var(--scroll-progress) * 28deg))
    skewX(-8deg);
}

.inner-page::after {
  background:
    linear-gradient(90deg, transparent 0 13%, color-mix(in srgb, var(--color-text) 5%, transparent) 13% calc(13% + 1px), transparent calc(13% + 1px)),
    linear-gradient(90deg, transparent 0 71%, color-mix(in srgb, var(--color-text) 5%, transparent) 71% calc(71% + 1px), transparent calc(71% + 1px)),
    linear-gradient(0deg, transparent 0 24%, color-mix(in srgb, var(--color-text) 5%, transparent) 24% calc(24% + 1px), transparent calc(24% + 1px)),
    linear-gradient(135deg, transparent 0 62%, color-mix(in srgb, var(--color-text) 4%, transparent) 62% calc(62% + 1px), transparent calc(62% + 1px)),
    conic-gradient(from 180deg at 82% 70%, color-mix(in srgb, var(--color-text) 7%, transparent) 0 18%, transparent 0 100%);
}

.page-rail {
  display: none;
}

.project-card,
.composition-card {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--color-surface) 58%, transparent), color-mix(in srgb, var(--color-surface) 36%, transparent));
}

/* v4.1 visual polish */
.page,
.about-composition {
  width: min(var(--max-width), calc(100% - var(--space-page) * 2));
  margin-inline: auto;
}

.page-heading,
.composition-hero {
  gap: 16px;
  margin-inline: auto;
  padding-top: clamp(18px, 3vw, 34px);
}

.page-heading h1,
.composition-hero h1,
.section-title-line {
  letter-spacing: 0;
}

.page-heading h1,
.composition-hero h1 {
  border-left-width: 10px;
  padding-left: clamp(16px, 2.4vw, 24px);
}

.page-heading p,
.composition-hero__lede {
  max-width: 620px;
  margin: 0;
  color: var(--color-muted);
  font-size: clamp(15px, 1.45vw, 17px);
  line-height: 1.75;
}

.blog-tools,
.blog-results,
.page-panel,
.composition-grid {
  max-width: 960px;
  margin-inline: auto;
}

.blog-tools {
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--color-text) 7%, transparent);
  background: color-mix(in srgb, var(--color-surface) 54%, transparent);
  padding: clamp(14px, 2vw, 18px);
}

.search-field input,
.guestbook-field textarea {
  border-radius: calc(var(--radius) - 2px);
}

.profile-card__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  border-block: 1px solid var(--color-line);
  padding-block: 12px;
}

.profile-card__stats span {
  display: grid;
  gap: 2px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 760;
  letter-spacing: 0.06em;
  line-height: 1.2;
  text-transform: uppercase;
}

.profile-card__stats strong {
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0;
}

.article-list--archive .article-item {
  border-inline: 1px solid transparent;
  padding: 18px 16px;
}

.article-list--archive .article-item:hover,
.article-list--archive .article-item:focus-visible {
  border-inline-color: color-mix(in srgb, var(--color-accent) 24%, transparent);
  background: color-mix(in srgb, var(--color-surface) 50%, transparent);
}

.project-grid--mosaic {
  gap: clamp(12px, 2vw, 18px);
}

.project-card {
  align-content: space-between;
  min-height: 260px;
  padding: clamp(20px, 2.6vw, 28px);
}

.project-card__tag,
.project-card__meta,
.friend-card em {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-style: normal;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-card h3 {
  margin: clamp(38px, 7vw, 86px) 0 10px;
  font-size: clamp(26px, 3.8vw, 42px);
  letter-spacing: 0;
}

.project-card p {
  max-width: 28ch;
  line-height: 1.65;
}

.project-card__meta {
  display: block;
  margin-top: 20px;
  color: var(--color-muted);
}

.friends-grid--mosaic {
  gap: clamp(12px, 2vw, 18px);
}

.friend-card {
  min-height: 164px;
  align-items: start;
  padding: clamp(18px, 2.4vw, 24px);
}

.friend-card__avatar {
  margin-top: 2px;
}

.friend-card strong {
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.1;
}

.friend-card small {
  margin-top: 8px;
  max-width: 24ch;
}

.friend-card em {
  display: block;
  margin-top: 16px;
  color: var(--color-muted);
}

.guestbook-layout {
  gap: clamp(14px, 2vw, 20px);
}

.guestbook-signal {
  isolation: isolate;
}

.guestbook-signal strong {
  max-width: 9ch;
  letter-spacing: 0;
}

.guestbook-signal__rows {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 9px;
  margin-top: auto;
}

.guestbook-signal__rows span {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent);
  padding-top: 8px;
  color: var(--color-muted);
  font-size: 10px;
}

.guestbook-signal__rows span::after {
  content: "ready";
  color: var(--color-accent);
}

.guestbook-panel {
  min-width: 0;
}

.guestbook-submit {
  border-radius: calc(var(--radius) - 2px);
}

.composition-hero {
  max-width: 960px;
}

.composition-grid {
  grid-auto-rows: 136px;
}

.composition-card {
  border-radius: var(--radius);
}

.composition-card h2 {
  font-size: clamp(1.3rem, 2.6vw, 2rem);
}

.composition-card p {
  max-width: 230px;
  line-height: 1.55;
}

.composition-widget {
  padding: clamp(18px, 2.2vw, 24px);
}

.site-footer {
  width: min(var(--max-width), calc(100% - var(--space-page) * 2));
  margin-inline: auto;
}

.footer-social {
  justify-content: flex-start;
}

.footer-social .social-link {
  min-height: 34px;
  padding-inline: 12px;
}

.footer-bottom {
  border-top: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  padding-top: 16px;
}

/* v4.21 footer and guestbook refinement */
.footer-social {
  justify-content: center;
  justify-self: center;
  width: 100%;
}

.guestbook-layout {
  grid-template-columns: minmax(220px, 0.32fr) minmax(0, 0.68fr);
  align-items: start;
  gap: clamp(14px, 2.4vw, 28px);
}

.guestbook-signal,
.guestbook-panel {
  border-radius: var(--radius);
}

.guestbook-signal {
  min-height: 0;
  align-content: start;
  gap: clamp(32px, 6vw, 72px);
  border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  background:
    linear-gradient(90deg, transparent 0 61.8%, color-mix(in srgb, var(--color-accent) 10%, transparent) 61.8% calc(61.8% + 1px), transparent calc(61.8% + 1px)),
    color-mix(in srgb, var(--color-surface) 44%, transparent);
  padding: clamp(18px, 2.4vw, 24px);
}

.guestbook-signal::before {
  inset: auto 18px 18px auto;
  width: 54px;
  border-color: color-mix(in srgb, var(--color-text) 14%, transparent);
  opacity: 0.72;
}

.guestbook-signal span {
  color: var(--color-accent);
}

.guestbook-signal strong {
  max-width: 11ch;
  color: var(--color-text);
  font-size: clamp(28px, 4vw, 46px);
  line-height: 0.98;
}

.guestbook-signal i {
  display: none;
}

.guestbook-signal__rows {
  gap: 0;
  margin-top: 0;
}

.guestbook-signal__rows span {
  border-top-color: color-mix(in srgb, var(--color-text) 12%, transparent);
  padding-block: 9px;
}

.guestbook-signal__rows span::after {
  content: "local";
}

.guestbook-panel {
  display: grid;
  gap: 0;
  border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  background: color-mix(in srgb, var(--color-surface) 44%, transparent);
  padding: 0;
}

.guestbook-panel__intro,
.guestbook-compose,
.guestbook-archive {
  padding: clamp(18px, 2.6vw, 26px);
}

.guestbook-panel__intro {
  display: grid;
  gap: 8px;
  border-bottom: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
}

.guestbook-panel__intro span,
.guestbook-archive > span {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.guestbook-panel__intro h2 {
  margin: 0;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.08;
}

.guestbook-panel__intro p {
  max-width: 58ch;
}

.guestbook-compose {
  border-bottom: 0;
}

.guestbook-form {
  border-top: 0;
  padding-top: 0;
}

.guestbook-field textarea {
  min-height: clamp(150px, 24vw, 220px);
  border-color: color-mix(in srgb, var(--color-text) 10%, transparent);
  background:
    linear-gradient(90deg, transparent 0 38.2%, color-mix(in srgb, var(--color-text) 4%, transparent) 38.2% calc(38.2% + 1px), transparent calc(38.2% + 1px)),
    color-mix(in srgb, var(--color-bg) 56%, transparent);
}

.guestbook-form__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.guestbook-status {
  min-height: 1.5em;
  text-align: right;
}

.guestbook-archive {
  display: grid;
  gap: 14px;
}

.guestbook-list {
  border-top: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  padding-top: 14px;
}

.guestbook-entry {
  border-bottom-color: color-mix(in srgb, var(--color-text) 8%, transparent);
}

.guestbook-entry:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

/* v4.3 ordered mathematical field */
.inner-page {
  --field-a: color-mix(in srgb, var(--color-text) 6%, transparent);
  --field-b: color-mix(in srgb, var(--color-text) 3.5%, transparent);
  --field-c: color-mix(in srgb, var(--color-accent) 16%, transparent);
  overflow: clip;
}

.inner-page::before {
  top: calc(var(--header-height) + clamp(22px, 5vw, 60px));
  right: clamp(18px, 8vw, 128px);
  bottom: auto;
  z-index: -2;
  width: clamp(220px, 28vw, 420px);
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--color-text) 9%, transparent);
  border-radius: 50%;
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), var(--field-c) 50%, transparent calc(50% + 1px)),
    linear-gradient(0deg, transparent calc(50% - 1px), var(--field-a) 50%, transparent calc(50% + 1px)),
    repeating-radial-gradient(circle, transparent 0 38px, var(--field-b) 39px 40px, transparent 41px 78px),
    conic-gradient(from 0deg, transparent 0 24.8%, var(--field-c) 24.8% 25.2%, transparent 25.2% 49.8%, var(--field-a) 49.8% 50.2%, transparent 50.2% 74.8%, var(--field-c) 74.8% 75.2%, transparent 75.2% 100%);
  opacity: 0.52;
  transform:
    rotate(calc(var(--scroll-progress) * 12deg))
    translate3d(0, calc(var(--scroll-progress) * 12px), 0);
  transform-origin: center;
  transition: transform 420ms var(--ease-out), opacity 420ms var(--ease-out);
}

.inner-page::after {
  inset: var(--header-height) 0 0;
  z-index: -3;
  background:
    linear-gradient(90deg, transparent 0 38.2%, var(--field-c) 38.2% calc(38.2% + 1px), transparent calc(38.2% + 1px) 61.8%, var(--field-c) 61.8% calc(61.8% + 1px), transparent calc(61.8% + 1px)),
    linear-gradient(0deg, transparent 0 38.2%, var(--field-b) 38.2% calc(38.2% + 1px), transparent calc(38.2% + 1px) 61.8%, var(--field-b) 61.8% calc(61.8% + 1px), transparent calc(61.8% + 1px)),
    repeating-linear-gradient(90deg, transparent 0 63px, color-mix(in srgb, var(--color-text) 2.8%, transparent) 64px 65px, transparent 66px 127px),
    repeating-linear-gradient(0deg, transparent 0 63px, color-mix(in srgb, var(--color-text) 2.8%, transparent) 64px 65px, transparent 66px 127px),
    linear-gradient(135deg, transparent 0 49.9%, color-mix(in srgb, var(--color-text) 3.5%, transparent) 50%, transparent 50.1%);
  opacity: 0.82;
}

.page-heading,
.composition-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px clamp(18px, 3vw, 36px);
  align-items: start;
  max-width: 960px;
  min-height: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
  padding: clamp(24px, 4vw, 48px) 0 clamp(18px, 3vw, 28px);
}

.page-heading::before,
.composition-hero::before {
  content: "0.618 / 1.000";
  grid-column: 2;
  grid-row: 1 / span 3;
  align-self: stretch;
  display: grid;
  place-items: end;
  min-width: clamp(92px, 13vw, 148px);
  border-left: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
  padding-left: clamp(14px, 2vw, 22px);
  color: color-mix(in srgb, var(--color-muted) 82%, transparent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}

.page-heading__index {
  grid-column: 1;
  width: fit-content;
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--color-accent) 36%, transparent);
  background: transparent;
  padding: 0 0 6px;
  color: var(--color-accent);
}

.page-heading h1,
.composition-hero h1 {
  grid-column: 1;
  border-left: 0;
  margin: 0;
  padding-left: 0;
  font-size: clamp(36px, 5.5vw, 72px);
  font-weight: 940;
  letter-spacing: 0;
  line-height: 0.96;
  text-transform: none;
}

.page-heading h1::before,
.composition-hero h1::before {
  content: none;
}

.page-heading h1::after,
.composition-hero h1::after {
  top: 0.08em;
  right: auto;
  bottom: auto;
  left: calc(100% + 0.42em);
  z-index: -1;
  font-size: 0.72em;
  -webkit-text-stroke: 1px color-mix(in srgb, var(--color-text) 10%, transparent);
  text-stroke: 1px color-mix(in srgb, var(--color-text) 10%, transparent);
  opacity: calc(0.16 + var(--section-progress) * 0.14);
  pointer-events: none;
}

.page-heading p,
.composition-hero__lede {
  grid-column: 1;
  max-width: 640px;
  border-left: 0;
  padding-left: 0;
  font-size: clamp(14px, 1.35vw, 16px);
}

.blog-tools,
.blog-results,
.page-panel,
.composition-grid {
  margin-top: clamp(18px, 3vw, 32px);
}

/* v4.8 modern minimal inner headers */
.page-heading,
.composition-hero {
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 8px clamp(10px, 1.4vw, 16px);
  align-items: end;
  padding: clamp(22px, 4vw, 44px) 0 clamp(16px, 2.5vw, 28px);
}

.page-heading::before,
.composition-hero::before {
  content: "";
  grid-column: 1 / -1;
  grid-row: 4;
  height: 1px;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--color-text) 14%, transparent), color-mix(in srgb, var(--color-text) 14%, transparent)) 0 0 / 100% 1px no-repeat,
    linear-gradient(90deg, var(--field-c), var(--field-c)) 0 0 / 61.8% 1px no-repeat;
}

.page-heading::after,
.composition-hero::after {
  content: "";
  grid-column: 11 / -1;
  grid-row: 1 / span 3;
  align-self: stretch;
  width: 1px;
  justify-self: end;
  background:
    linear-gradient(0deg, var(--field-c) 0 38.2%, color-mix(in srgb, var(--color-text) 12%, transparent) 38.2% 100%);
  opacity: 0.82;
}

.page-heading__index {
  grid-column: 1 / 4;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  border: 0;
  padding: 0;
  color: var(--color-muted);
  font-size: 10px;
}

.page-heading__index::before {
  content: "index";
  color: var(--color-accent);
}

.page-heading__index::after {
  content: none;
  color: color-mix(in srgb, var(--color-muted) 76%, transparent);
}

.page-heading h1,
.composition-hero h1 {
  grid-column: 1 / 8;
  font-size: clamp(28px, 4vw, 56px);
  line-height: 0.98;
}

.page-heading h1::before,
.composition-hero h1::before {
  content: none;
}

.page-heading h1::after,
.composition-hero h1::after {
  display: none;
}

.page-heading p,
.composition-hero__lede {
  grid-column: 8 / 12;
  max-width: 68ch;
  border-left: 0;
  padding-left: 0;
  color: color-mix(in srgb, var(--color-muted) 92%, transparent);
  font-size: clamp(13px, 1.1vw, 15px);
  line-height: 1.68;
}

.blog-tools,
.blog-results,
.page-panel,
.composition-grid {
  margin-top: clamp(14px, 2.4vw, 26px);
}

@media (max-width: 1120px) {
  .page-rail {
    display: none;
  }
}

@media (max-width: 760px) {
  .page-heading h1::after,
  .composition-hero h1::after {
    display: none;
  }

  .page-heading,
  .composition-hero {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-top: 20px;
  }

  .page-heading::before,
  .composition-hero::before {
    grid-row: auto;
    grid-column: 1;
    width: auto;
    min-width: 0;
    height: 1px;
    padding: 0;
  }

  .page-heading::after,
  .composition-hero::after {
    display: none;
  }

  .page-heading__index,
  .page-heading h1,
  .composition-hero h1,
  .page-heading p,
  .composition-hero__lede {
    grid-column: 1;
  }

  .page-heading h1,
  .composition-hero h1 {
    font-size: clamp(30px, 9vw, 44px);
  }

  .blog-tools,
  .guestbook-layout,
  .project-grid--mosaic,
  .friends-grid--mosaic {
    grid-template-columns: 1fr;
  }

  .project-grid--mosaic .project-card:first-child,
  .project-grid--mosaic .project-card {
    grid-row: auto;
    min-height: 190px;
  }

  .friends-grid--mosaic .friend-card,
  .friends-grid--mosaic .friend-card:nth-child(2),
  .friends-grid--mosaic .friend-card:nth-child(3) {
    grid-column: auto;
    transform: none;
  }

  .guestbook-signal {
    min-height: 190px;
  }

  .profile-card__stats {
    grid-template-columns: 1fr;
  }

  .project-card__meta,
  .friend-card em {
    margin-top: 12px;
  }

  .guestbook-signal__rows {
    gap: 6px;
  }

  .composition-hero__lede {
    max-width: 100%;
  }

  .footer-social {
    justify-content: flex-start;
  }

  .footer-social .social-link {
    min-height: 34px;
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 64px;
  }

  .site-header {
    grid-template-columns: 1fr auto 1fr;
  }

  .header-actions {
    gap: 4px;
  }

  .utility-button {
    min-width: 38px;
    height: 32px;
    padding: 0 9px;
    font-size: 0.78rem;
  }

  .brand {
    grid-column: 2;
  }

  .nav-toggle {
    display: grid;
    grid-column: 3;
    justify-self: end;
  }

  .site-nav {
    position: absolute;
    top: calc(100% - 1px);
    right: 0;
    display: none;
    width: min(280px, calc(100vw - var(--space-page) * 2));
    padding: 8px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    background: var(--color-surface);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  }

  .site-nav.is-open {
    display: grid;
  }

  .nav-link {
    justify-content: start;
    width: 100%;
    min-height: 42px;
    padding: 0 12px;
    font-weight: 500;
  }

  .hero {
    min-height: calc(100svh - var(--header-height) - 3px);
    padding-top: 46px;
  }

  .hero::before {
    width: min(112vw, 560px);
    opacity: calc(0.36 - var(--hero-scroll) * 0.16);
  }

  .hero::after {
    inset-inline: -32%;
    opacity: calc(0.38 - var(--hero-scroll) * 0.16);
  }

  .signal-field {
    top: 47%;
    width: min(118vw, 520px);
    opacity: 0.7;
  }

  .hero-readout {
    display: none;
  }

  .hero__content {
    text-align: center;
  }

  .hero__title {
    min-height: 142px;
  }

  .typewriter {
    gap: 0.04em 0.14em;
  }

  .tech-mark--system,
  .tech-mark--coords {
    display: none;
  }

  .hero__intro {
    margin-inline: auto;
  }

  .hero__footer {
    align-items: center;
  }

  .hero__footer-status {
    display: none;
  }

  .blog-tools {
    grid-template-columns: 1fr;
  }

  .about-composition {
    padding-top: 26px;
  }

  .composition-grid {
    grid-template-columns: 1fr;
  }

  .composition-card,
  .composition-card--s,
  .composition-card--m,
  .composition-card--l,
  .composition-card--x {
    grid-column: auto;
    grid-row: auto;
    min-height: 168px;
  }

  .composition-card {
    transform: none;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .intro__text {
    margin-left: 0;
  }

  .article-item {
    grid-template-columns: 44px minmax(0, 1fr);
    min-height: 118px;
  }

  .article-item__arrow {
    display: none;
  }

  .article-item:hover,
  .article-item:focus-visible {
    transform: translateX(4px);
  }

  .project-grid,
  .about__layout,
  .about-stage,
  .about-board {
    grid-template-columns: 1fr;
  }

  .about-stage {
    min-height: auto;
  }

  .about-orbit {
    justify-self: start;
    width: min(260px, 72vw);
  }

  .about-note--large {
    min-height: 260px;
  }

  .project-card {
    min-height: 190px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 440px) {
  .hero__title {
    min-height: 136px;
    font-size: clamp(38px, 13vw, 54px);
  }

  .ambient-glow {
    width: 560px;
    height: 560px;
    filter: blur(110px);
  }

  .tech-mark {
    font-size: 9px;
  }

  .hero__footer {
    gap: 12px;
  }

  .article-item {
    gap: 12px;
  }

  .article-item__title {
    font-size: 21px;
  }

  .social-link {
    min-height: 74px;
  }

  .kicker::before,
  .kicker::after {
    width: 16px;
  }
}

@media (max-width: 640px) {
  :root {
    --space-page: 16px;
    --header-height: 58px;
  }

  html,
  body {
    width: 100%;
    overflow-x: hidden;
  }

  .site-header {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    padding-inline: var(--space-page);
  }

  .header-actions {
    min-width: 0;
  }

  .rotary-knob {
    display: none;
  }

  .utility-button {
    min-width: 34px;
    height: 30px;
    padding-inline: 7px;
    font-size: 11px;
  }

  .brand {
    padding-inline: 6px;
    font-size: 17px;
  }

  .nav-toggle {
    width: 36px;
    height: 36px;
    padding: 9px;
  }

  .site-nav {
    right: var(--space-page);
    width: calc(100vw - var(--space-page) * 2);
    max-width: 320px;
  }

  main,
  .page,
  .about-composition,
  .site-footer {
    width: min(100%, calc(100% - var(--space-page) * 2));
  }

  .hero {
    min-height: auto;
    padding: 34px 0 42px;
  }

  .hero__visual {
    inset: 12px -8px auto;
    height: 330px;
    opacity: 0.82;
  }

  .signal-field {
    top: 50%;
    width: min(108vw, 420px);
  }

  .hero__content {
    align-self: start;
    padding-top: 52px;
  }

  .kicker {
    max-width: 28ch;
    margin-inline: auto;
    font-size: 10px;
    line-height: 1.45;
  }

  .hero__title {
    min-height: 112px;
    font-size: clamp(34px, 11vw, 48px);
    line-height: 1.04;
  }

  .typewriter {
    justify-content: center;
  }

  .hero__intro {
    max-width: 30ch;
    font-size: 15px;
    line-height: 1.75;
  }

  .hero__footer {
    justify-content: center;
    margin-top: 22px;
  }

  .scroll-indicator {
    display: none;
  }

  .home-content {
    width: 100%;
    padding: 42px 0 34px;
  }

  .home-content::before {
    width: 100%;
    margin-left: 0;
    transform: none;
  }

  .intro-writing {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .profile-card,
  .guestbook-panel {
    padding: 18px;
  }

  .profile-card:hover,
  .profile-card:focus-visible-within,
  .writing-card:hover,
  .writing-card:focus-visible,
  .article-item:hover,
  .article-item:focus-visible,
  .project-card:hover,
  .project-card:focus-visible,
  .friend-card:hover,
  .friend-card:focus-visible {
    transform: none;
  }

  .profile-card__avatar {
    width: 58px;
    height: 58px;
    font-size: 27px;
  }

  .profile-card h2 {
    font-size: 34px;
  }

  .section-title-line {
    border-left-width: 4px;
    padding-left: 10px;
    font-size: 24px;
  }

  .writing-card {
    padding: 16px 0;
  }

  .writing-card h3 {
    font-size: 21px;
  }

  .writing-card p {
    font-size: 14px;
  }

  .page {
    padding-bottom: 42px;
  }

  .page-heading,
  .composition-hero {
    padding-top: 16px;
  }

  .page-heading h1,
  .composition-hero h1 {
    border-left-width: 6px;
    padding-left: 12px;
    font-size: clamp(30px, 10vw, 42px);
    line-height: 1.04;
  }

  .page-heading p,
  .composition-hero__lede {
    font-size: 14px;
    line-height: 1.7;
  }

  .blog-tools {
    gap: 14px;
    padding: 12px;
  }

  .tag-filter {
    gap: 6px;
  }

  .tag-pill {
    min-height: 32px;
    padding-inline: 10px;
    font-size: 11px;
  }

  .article-list--archive .article-item,
  .article-item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
    min-height: 0;
    padding: 16px 0;
  }

  .article-list--archive .article-item {
    padding-inline: 0;
  }

  .article-item__number {
    font-size: 11px;
  }

  .article-item__title {
    font-size: 20px;
    line-height: 1.28;
  }

  .article-item__summary {
    font-size: 14px;
    line-height: 1.65;
  }

  .archive-year summary {
    min-height: 48px;
    padding-inline: 12px;
    font-size: 12px;
  }

  .archive-year__list {
    padding: 6px;
  }

  .read-recovery {
    right: 16px;
    bottom: 16px;
    display: grid;
    grid-template-columns: 1fr auto auto;
    width: calc(100vw - 32px);
  }

  .post-content pre {
    padding: 14px;
    font-size: 12px;
  }

  .project-grid--mosaic,
  .friends-grid--mosaic,
  .project-grid,
  .friends-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .project-grid--mosaic .project-card:first-child,
  .project-grid--mosaic .project-card,
  .project-card {
    grid-row: auto;
    min-height: 176px;
  }

  .project-card {
    padding: 18px;
  }

  .project-card h3 {
    margin: 32px 0 8px;
    font-size: 27px;
  }

  .project-card p {
    max-width: 100%;
    font-size: 14px;
  }

  .project-card::after {
    width: 34px;
    height: 34px;
  }

  .friends-grid--mosaic .friend-card,
  .friends-grid--mosaic .friend-card:nth-child(2),
  .friends-grid--mosaic .friend-card:nth-child(3),
  .friend-card {
    grid-column: auto;
    min-height: 132px;
    transform: none;
  }

  .friend-card {
    gap: 14px;
    padding: 16px;
  }

  .friend-card__avatar {
    width: 42px;
    height: 42px;
  }

  .friend-card small {
    max-width: 100%;
  }

  .guestbook-layout {
    grid-template-columns: 1fr;
  }

  .guestbook-signal {
    min-height: 150px;
  }

  .post-shell {
    padding: 28px 0 56px;
  }

  .post-back {
    margin-bottom: 24px;
    font-size: 11px;
  }

  .post-header h1 {
    font-size: clamp(32px, 10vw, 46px);
    line-height: 1.04;
  }

  .post-header p,
  .post-content {
    font-size: 15px;
  }

  .post-content {
    gap: 16px;
    line-height: 1.78;
  }

  .footer-social {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .footer-social .social-link,
  .social-link {
    min-height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }

  .vinyl,
  .widget-status__dot,
  .signal-field__ring,
  .signal-field__node,
  .word-char,
  .cursor {
    animation: none !important;
  }

  .ambient-glow {
    transform: translate3d(calc(50vw - 50%), calc(36vh - 50%), 0) !important;
  }

  .word-char {
    clip-path: inset(0 0 0 0);
    opacity: 1;
    transform: none;
  }
}

.footer-social {
  justify-content: center;
}

/* v4.22 guestbook split sections */
.guestbook-panel {
  gap: clamp(16px, 2.4vw, 26px);
  border: 0;
  background: transparent;
}

.guestbook-panel__intro,
.guestbook-compose,
.guestbook-archive {
  border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-surface) 46%, transparent);
}

.guestbook-panel__intro {
  border-bottom: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
}

.guestbook-compose {
  border-bottom: 0;
}

.guestbook-archive {
  margin-top: clamp(20px, 3.5vw, 38px);
  justify-self: center;
  width: 100%;
  min-width: 0;
  border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-surface) 44%, transparent);
  padding: clamp(18px, 2.6vw, 26px);
}

.guestbook-list {
  display: grid;
  gap: 0;
}

.guestbook-empty {
  text-align: center;
}

@media (max-width: 780px) {
  .guestbook-archive {
    width: 100%;
    min-width: 0;
  }
}

/* v6.4 editorial post and full-width guestbook comments */
.article-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
}

.article-item__meta span {
  display: inline-flex;
  align-items: center;
}

.article-item__meta span + span::before {
  content: "";
  width: 4px;
  height: 4px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}

.post-header {
  display: block;
}

.post-content {
  max-width: 760px;
  margin-inline: auto;
}

.footer-social .social-link {
  width: auto;
  min-height: 38px;
  border-radius: 999px;
  gap: 8px;
  padding: 0 13px 0 11px;
}

.footer-social .social-icon {
  display: inline-flex;
  width: 17px;
  height: 17px;
  color: var(--color-text);
}

.footer-social .social-icon svg {
  display: block;
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.footer-social .social-label {
  position: static;
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

@media (max-width: 780px) {
  .footer-social {
    display: flex;
    grid-template-columns: none;
    width: auto;
  }

  .footer-social .social-link,
  .social-link {
    width: auto;
    min-height: 40px;
  }
}

.guestbook-stack {
  display: grid;
  gap: clamp(14px, 2.4vw, 24px);
}

.guestbook-stack .guestbook-layout {
  grid-template-columns: minmax(180px, 0.28fr) minmax(0, 0.72fr);
}

.guestbook-stack .guestbook-signal {
  min-height: 230px;
}

.guestbook-stack .guestbook-panel__intro {
  min-height: 230px;
  display: grid;
  align-content: space-between;
}

.guestbook-stack .guestbook-comments {
  width: 100%;
  min-width: 0;
  border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-surface) 46%, transparent);
  padding: clamp(14px, 2.4vw, 24px);
}

.guestbook-panel__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(16px, 2vw, 24px);
}

.guestbook-panel__facts span {
  border: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.guestbook-stack .giscus {
  max-width: none;
}

@media (max-width: 780px) {
  .guestbook-stack .guestbook-layout {
    grid-template-columns: 1fr;
  }

  .guestbook-stack .guestbook-signal,
  .guestbook-stack .guestbook-panel__intro {
    min-height: 0;
  }
}

/* v6.6 redesigned guestbook board */
.guestbook-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 2vw, 18px);
  align-items: stretch;
  border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  border-radius: calc(var(--radius) + 10px);
  background:
    radial-gradient(circle at 18% 12%, color-mix(in srgb, var(--color-accent) 12%, transparent), transparent 34%),
    linear-gradient(135deg, color-mix(in srgb, var(--color-surface) 82%, var(--color-bg)), color-mix(in srgb, var(--color-bg) 92%, var(--color-surface)));
  box-shadow: 0 24px 70px color-mix(in srgb, var(--color-text) 8%, transparent);
  padding: clamp(18px, 3vw, 30px);
}

.guestbook-protocol {
  min-width: 0;
}

.guestbook-protocol {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-content: start;
  gap: 10px;
}

.guestbook-protocol div {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 4px 14px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-bg) 58%, transparent);
  padding: 16px;
}

.guestbook-protocol div + div {
  padding-top: 16px;
}

.guestbook-protocol span {
  grid-row: 1 / span 2;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 850;
}

.guestbook-protocol strong {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.guestbook-protocol p {
  margin: 0;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.65;
}

.guestbook-divider {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-bg) 48%, transparent);
  padding: 10px 12px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.guestbook-board .guestbook-comments {
  grid-column: 1 / -1;
  width: 100%;
  min-width: 0;
  border: 0;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-bg) 70%, transparent);
  padding: clamp(14px, 2.4vw, 24px);
}

.guestbook-board .giscus {
  max-width: none;
}

@media (max-width: 820px) {
  .guestbook-protocol {
    grid-template-columns: 1fr;
  }
}

/* v6.5 restore compact post header */
.post-header {
  display: block;
}

.post-meta-line {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 0;
  margin-bottom: 2px;
  color: var(--color-muted);
  font-size: 12.5px;
  line-height: 1.45;
  letter-spacing: 0.07em;
}

.post-meta-line span {
  display: inline-flex;
  align-items: center;
}

.post-meta-line span + span::before {
  content: "//";
  margin-inline: 8px;
  color: color-mix(in srgb, var(--color-muted) 58%, transparent);
}