:root {
  --bg: #07090d;
  --bg-soft: #0a0d13;
  --surface: rgba(17, 21, 30, 0.82);
  --surface-solid: #11151e;
  --surface-2: #171c27;
  --text: #f5f7fb;
  --text-soft: #c8ceda;
  --muted: #8f99aa;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --accent: #8aa7ff;
  --accent-strong: #6e8fff;
  --accent-2: #76e4c4;
  --warning: #ffc978;
  --danger: #ff8e9a;
  --success: #76e4c4;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.35);
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 30px;
  --shell: 1180px;
  --header-h: 72px;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 28px);
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 80% 12%, rgba(80, 112, 255, 0.14), transparent 30%),
    radial-gradient(circle at 12% 28%, rgba(59, 215, 176, 0.08), transparent 28%),
    linear-gradient(180deg, #080a0f 0%, #07090d 62%, #090b10 100%);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.36;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 84%);
  z-index: -1;
}

::selection {
  background: rgba(138, 167, 255, 0.32);
  color: #fff;
}

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

img,
svg {
  display: block;
  max-width: 100%;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

p,
h1,
h2,
h3,
h4,
ul,
ol,
figure,
blockquote {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  line-height: 1.15;
  letter-spacing: -0.035em;
}

h1 {
  font-size: clamp(3rem, 7vw, 6.7rem);
  margin-bottom: 26px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.55rem);
  margin-bottom: 18px;
}

h3 {
  font-size: clamp(1.22rem, 2vw, 1.65rem);
  margin-bottom: 12px;
}

p {
  color: var(--text-soft);
}

code,
.mono {
  font-family: var(--mono);
}

.shell {
  width: min(calc(100% - 40px), var(--shell));
  margin-inline: auto;
}

.narrow {
  width: min(calc(100% - 40px), 820px);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: background-color 180ms ease, border-color 180ms ease, backdrop-filter 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(7, 9, 13, 0.78);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(138, 167, 255, 0.18), rgba(118, 228, 196, 0.07));
  color: #fff;
  font-family: var(--mono);
  font-size: 0.86rem;
  box-shadow: inset 0 0 20px rgba(138, 167, 255, 0.05);
}

.brand-copy {
  display: grid;
  line-height: 1.05;
}

.brand-copy small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  padding: 9px 12px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.92rem;
  transition: color 150ms ease, background-color 150ms ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.055);
}

.nav-cta {
  margin-left: 6px;
  border: 1px solid var(--line-strong);
  color: var(--text) !important;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  content: "";
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 4px auto;
  background: var(--text);
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle[aria-expanded="true"] span {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"]::before {
  transform: translateY(5.5px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"]::after {
  transform: translateY(-5.5px) rotate(-45deg);
}

main {
  overflow: clip;
}

.hero {
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: center;
  padding: 74px 0 64px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(330px, 0.78fr);
  align-items: center;
  gap: clamp(42px, 7vw, 92px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--accent-2);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
}

.hero h1 {
  max-width: 920px;
}

.gradient-text {
  background: linear-gradient(100deg, #ffffff 0%, #dbe4ff 35%, #9bb4ff 72%, #82e2c8 112%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  max-width: 720px;
  margin-bottom: 32px;
  color: #b8c0cf;
  font-size: clamp(1.02rem, 1.5vw, 1.2rem);
  line-height: 1.85;
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 680;
  cursor: pointer;
  transition: transform 150ms ease, border-color 150ms ease, background-color 150ms ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.07);
}

.button.primary {
  color: #08101d;
  border-color: transparent;
  background: linear-gradient(135deg, #a6baff, #7fe2c8);
  box-shadow: 0 14px 36px rgba(105, 133, 255, 0.18);
}

.button.primary:hover {
  background: linear-gradient(135deg, #b5c5ff, #90ead3);
}

.button.small {
  min-height: 38px;
  padding-inline: 14px;
  border-radius: 11px;
  font-size: 0.82rem;
}

.button svg,
.text-link svg {
  width: 16px;
  height: 16px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 26px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 5px rgba(118, 228, 196, 0.08), 0 0 20px rgba(118, 228, 196, 0.35);
}

.terminal {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(19, 24, 34, 0.92), rgba(9, 12, 18, 0.96));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.terminal::before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  right: -70px;
  top: -70px;
  border-radius: 50%;
  background: rgba(108, 139, 255, 0.13);
  filter: blur(12px);
}

.terminal-bar {
  height: 46px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
}

.terminal-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #596170;
}

.terminal-dot:nth-child(1) { background: #ff8d8d; }
.terminal-dot:nth-child(2) { background: #f7c76d; }
.terminal-dot:nth-child(3) { background: #72dba7; }

.terminal-title {
  margin-left: auto;
  color: #6f798a;
  font-family: var(--mono);
  font-size: 0.68rem;
}

.terminal-body {
  position: relative;
  display: grid;
  gap: 20px;
  padding: 28px;
  font-family: var(--mono);
  font-size: 0.82rem;
}

.terminal-block {
  display: grid;
  gap: 7px;
}

.terminal-command {
  color: #cfd6e5;
}

.terminal-command::before {
  content: "$ ";
  color: var(--accent-2);
}

.terminal-output {
  color: #8e9aad;
  line-height: 1.75;
}

.terminal-output strong {
  color: #f3f6fc;
  font-weight: 620;
}

.terminal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 4px;
}

.terminal-tags span {
  padding: 5px 8px;
  border: 1px solid rgba(138, 167, 255, 0.18);
  border-radius: 7px;
  background: rgba(138, 167, 255, 0.06);
  color: #aebeff;
  font-size: 0.7rem;
}

.section {
  padding: 116px 0;
}

.section.compact {
  padding: 84px 0;
}

.section-line {
  border-top: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(300px, 0.55fr);
  align-items: end;
  gap: 48px;
  margin-bottom: 48px;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.section-kicker {
  display: block;
  margin-bottom: 14px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-title-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 38px;
}

.section-title-row h2,
.section-title-row p {
  margin-bottom: 0;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-soft);
  font-size: 0.9rem;
  font-weight: 650;
}

.text-link:hover {
  color: var(--accent);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.018);
  overflow: hidden;
}

.stat {
  min-height: 140px;
  display: grid;
  align-content: center;
  gap: 7px;
  padding: 28px;
  border-right: 1px solid var(--line);
}

.stat:last-child {
  border-right: 0;
}

.stat-value {
  color: var(--text);
  font-family: var(--mono);
  font-size: clamp(1.65rem, 3vw, 2.55rem);
  font-weight: 650;
  letter-spacing: -0.06em;
}

.stat-label {
  color: var(--muted);
  font-size: 0.84rem;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(330px, 1fr);
  gap: 64px;
  align-items: start;
}

.intro-copy p {
  font-size: 1.02rem;
  line-height: 1.9;
}

.focus-list {
  display: grid;
  gap: 10px;
}

.focus-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 17px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.018);
}

.focus-index {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.focus-item strong {
  font-size: 0.94rem;
  letter-spacing: -0.01em;
}

.focus-item small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.card-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(20, 25, 35, 0.82), rgba(11, 14, 20, 0.9));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
}

.card::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -90px;
  bottom: -90px;
  border-radius: 50%;
  background: rgba(138, 167, 255, 0.06);
  filter: blur(6px);
  transition: transform 250ms ease, background-color 250ms ease;
}

.card:hover::after {
  transform: scale(1.28);
  background: rgba(118, 228, 196, 0.075);
}

.project-card {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  padding: 28px;
  transition: transform 180ms ease, border-color 180ms ease;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.card-top,
.project-meta,
.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.project-number {
  color: #687387;
  font-family: var(--mono);
  font-size: 0.75rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.025);
  font-family: var(--mono);
  font-size: 0.66rem;
  line-height: 1;
  white-space: nowrap;
}

.badge::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.badge.research { color: #9eb1ff; }
.badge.engineering { color: #86e2ca; }
.badge.opensource { color: #f2c77e; }
.badge.progress { color: #d39bff; }
.badge.planned { color: #8f99aa; }

.project-card h3 {
  max-width: 520px;
  margin-top: 36px;
  margin-bottom: 14px;
  font-size: clamp(1.45rem, 2.4vw, 2.05rem);
}

.project-card p {
  margin-bottom: 22px;
  color: var(--muted);
}

.project-evidence {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: auto;
}

.evidence-chip {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.02);
}

.evidence-chip strong {
  display: block;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.9rem;
  letter-spacing: -0.03em;
}

.evidence-chip span {
  color: var(--muted);
  font-size: 0.72rem;
}

.card-footer-link {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--text-soft);
  font-size: 0.86rem;
  font-weight: 650;
}

.card-footer-link span:last-child {
  color: var(--accent);
  font-family: var(--mono);
}

.timeline {
  position: relative;
  display: grid;
  gap: 16px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 28px;
  bottom: 28px;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), rgba(255, 255, 255, 0.07));
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 22px;
  align-items: start;
}

.timeline-dot {
  position: relative;
  z-index: 1;
  width: 11px;
  height: 11px;
  margin: 28px auto 0;
  border: 2px solid var(--bg);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(138, 167, 255, 0.12);
}

.timeline-card {
  padding: 24px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.018);
}

.timeline-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.timeline-heading h3 {
  margin-bottom: 6px;
  font-size: 1.12rem;
}

.timeline-company {
  color: var(--muted);
  font-size: 0.86rem;
}

.timeline-date {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.73rem;
  white-space: nowrap;
}

.timeline-card p {
  margin: 14px 0 0;
  color: var(--muted);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tag {
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #aab3c3;
  background: rgba(255, 255, 255, 0.022);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.loop {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
}

.loop-step {
  position: relative;
  min-height: 124px;
  display: grid;
  align-content: center;
  gap: 10px;
  padding: 18px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.018);
  text-align: center;
}

.loop-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -11px;
  top: 50%;
  z-index: 2;
  transform: translateY(-50%);
  width: 16px;
  color: #5d6675;
  font-family: var(--mono);
}

.loop-step span {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.loop-step strong {
  font-size: 0.88rem;
  letter-spacing: -0.01em;
}

.article-card {
  display: flex;
  flex-direction: column;
  min-height: 265px;
  padding: 24px;
}

.article-card h3 {
  margin-top: 28px;
  font-size: 1.25rem;
}

.article-card p {
  color: var(--muted);
  font-size: 0.9rem;
}

.article-card .card-footer-link {
  margin-top: auto;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.roadmap-column {
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.018);
}

.roadmap-column h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  font-family: var(--mono);
  font-size: 0.96rem;
  letter-spacing: 0;
}

.roadmap-column h3::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.roadmap-column:nth-child(2) h3::before { background: var(--accent-2); }
.roadmap-column:nth-child(3) h3::before { background: var(--warning); }

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

.check-list li {
  position: relative;
  padding-left: 22px;
  color: var(--muted);
  font-size: 0.9rem;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  border: 1px solid #687387;
  border-radius: 2px;
  transform: translateY(-50%);
}

.check-list li.done::before {
  border-color: var(--success);
  background: var(--success);
  box-shadow: inset 0 0 0 2px var(--bg-soft);
}

.cta-panel {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 36px;
  align-items: center;
  padding: clamp(30px, 6vw, 58px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 80% 20%, rgba(138, 167, 255, 0.16), transparent 35%),
    linear-gradient(140deg, rgba(21, 27, 39, 0.95), rgba(10, 13, 19, 0.95));
  box-shadow: var(--shadow);
}

.cta-panel::after {
  content: "HF";
  position: absolute;
  right: 5%;
  bottom: -38%;
  color: rgba(255, 255, 255, 0.025);
  font-family: var(--mono);
  font-size: clamp(9rem, 20vw, 18rem);
  font-weight: 800;
  letter-spacing: -0.12em;
  pointer-events: none;
}

.cta-panel h2 {
  max-width: 720px;
  margin-bottom: 14px;
}

.cta-panel p {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--muted);
}

.site-footer {
  padding: 36px 0 42px;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  color: var(--muted);
  font-size: 0.8rem;
}

.footer-links {
  display: flex;
  gap: 18px;
}

.footer-links a:hover {
  color: var(--text);
}

/* Inner pages */
.page-hero {
  padding: 100px 0 72px;
}

.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.46fr);
  gap: 58px;
  align-items: end;
}

.page-hero h1 {
  max-width: 920px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 6vw, 5.5rem);
}

.page-lead {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.85;
}

.page-aside {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.018);
}

.page-aside-label {
  display: block;
  margin-bottom: 11px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.67rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.page-aside strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1rem;
}

.page-aside p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.detail-hero {
  padding: 86px 0 66px;
}

.detail-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-bottom: 28px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.detail-breadcrumbs span {
  color: #596274;
}

.detail-hero h1 {
  max-width: 980px;
  margin-bottom: 24px;
  font-size: clamp(2.8rem, 6vw, 5.2rem);
}

.detail-lead {
  max-width: 820px;
  color: #aeb7c7;
  font-size: 1.08rem;
  line-height: 1.9;
}

.detail-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 36px;
}

.detail-meta {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.018);
}

.detail-meta span {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.64rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.detail-meta strong {
  font-size: 0.88rem;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 72px;
  align-items: start;
}

.detail-content {
  min-width: 0;
}

.detail-content section {
  padding: 0 0 72px;
}

.detail-content section + section {
  padding-top: 6px;
  border-top: 1px solid var(--line);
}

.detail-content h2 {
  margin-top: 56px;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
}

.detail-content h3 {
  margin-top: 34px;
  letter-spacing: -0.025em;
}

.detail-content p,
.detail-content li {
  color: #abb4c3;
}

.detail-content ul,
.detail-content ol {
  padding-left: 22px;
}

.detail-content li + li {
  margin-top: 10px;
}

.detail-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  display: grid;
  gap: 14px;
}

.sidebar-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.018);
}

.sidebar-card h3 {
  margin-bottom: 15px;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.toc {
  display: grid;
  gap: 9px;
}

.toc a {
  color: var(--muted);
  font-size: 0.82rem;
}

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

.sidebar-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.sidebar-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 0.78rem;
}

.sidebar-list strong {
  color: var(--text-soft);
  font-weight: 600;
  text-align: right;
}

.architecture {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  align-items: center;
  margin: 30px 0 18px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.018);
}

.arch-node {
  position: relative;
  min-height: 104px;
  display: grid;
  place-content: center;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  background: #111620;
  text-align: center;
}

.arch-node:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -15px;
  top: 50%;
  z-index: 2;
  transform: translateY(-50%);
  color: var(--accent);
  font-family: var(--mono);
}

.arch-node strong {
  font-size: 0.84rem;
}

.arch-node span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0;
}

.metric-card {
  min-height: 142px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.018);
}

.metric-card strong {
  color: var(--text);
  font-family: var(--mono);
  font-size: 1.45rem;
  letter-spacing: -0.055em;
}

.metric-card span {
  color: var(--muted);
  font-size: 0.78rem;
}

.metric-card small {
  color: #697487;
  font-family: var(--mono);
  font-size: 0.64rem;
}

.data-table-wrap {
  overflow-x: auto;
  margin: 26px 0;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 650px;
  font-size: 0.82rem;
}

.data-table th,
.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.data-table th {
  color: #dbe1ec;
  background: rgba(255, 255, 255, 0.035);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.data-table td {
  color: var(--muted);
}

.data-table tr:last-child td {
  border-bottom: 0;
}

.callout {
  margin: 28px 0;
  padding: 20px 22px;
  border: 1px solid rgba(138, 167, 255, 0.22);
  border-left: 3px solid var(--accent);
  border-radius: 0 14px 14px 0;
  background: rgba(138, 167, 255, 0.055);
}

.callout.warning {
  border-color: rgba(255, 201, 120, 0.25);
  border-left-color: var(--warning);
  background: rgba(255, 201, 120, 0.045);
}

.callout strong {
  display: block;
  margin-bottom: 7px;
}

.callout p {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.code-block {
  overflow-x: auto;
  margin: 26px 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #090c12;
  color: #c7d1e2;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.8;
}

.number-list {
  display: grid;
  gap: 14px;
  padding: 0 !important;
  margin: 24px 0 !important;
  list-style: none;
  counter-reset: item;
}

.number-list li {
  position: relative;
  padding: 18px 18px 18px 54px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.018);
  counter-increment: item;
}

.number-list li::before {
  content: counter(item, decimal-leading-zero);
  position: absolute;
  left: 17px;
  top: 19px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.filter-button {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.018);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  cursor: pointer;
}

.filter-button:hover,
.filter-button.active {
  border-color: rgba(138, 167, 255, 0.3);
  background: rgba(138, 167, 255, 0.08);
  color: #cdd7ff;
}

.filter-item[hidden] {
  display: none !important;
}

.skill-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.skill-group {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.018);
}

.skill-group h3 {
  margin-bottom: 18px;
  font-size: 1rem;
}

.resume-sheet {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0c0f15;
}

.resume-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.resume-header h1 {
  margin-bottom: 8px;
  font-size: 2.5rem;
}

.resume-contact {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.76rem;
  text-align: right;
}

.resume-section {
  padding-top: 28px;
}

.resume-section h2 {
  margin-bottom: 18px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.77rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.resume-entry + .resume-entry {
  margin-top: 24px;
}

.resume-entry-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.resume-entry h3 {
  margin-bottom: 5px;
  font-size: 1.03rem;
}

.resume-entry .sub {
  color: var(--muted);
  font-size: 0.84rem;
}

.resume-entry .date {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.74rem;
  white-space: nowrap;
}

.resume-entry ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

.resume-entry li {
  color: #aeb6c4;
  font-size: 0.86rem;
}

.resume-entry li + li {
  margin-top: 7px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 550ms ease, transform 550ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 980px) {
  .site-nav {
    position: fixed;
    inset: var(--header-h) 20px auto 20px;
    display: none;
    align-items: stretch;
    flex-direction: column;
    padding: 14px;
    border: 1px solid var(--line-strong);
    border-radius: 16px;
    background: rgba(11, 14, 20, 0.97);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 14px;
  }

  .nav-cta {
    margin-left: 0;
  }

  .menu-toggle {
    display: block;
  }

  .hero {
    min-height: auto;
    padding-top: 62px;
  }

  .hero-grid,
  .intro-grid,
  .page-hero-grid,
  .detail-layout {
    grid-template-columns: 1fr;
  }

  .terminal {
    min-height: 360px;
  }

  .section-head {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat:nth-child(2) {
    border-right: 0;
  }

  .stat:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .loop {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .loop-step:nth-child(4)::after {
    display: none;
  }

  .roadmap-grid,
  .card-grid.three,
  .card-grid.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .detail-sidebar {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    order: -1;
  }

  .detail-meta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .architecture {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .arch-node:nth-child(3)::after {
    display: none;
  }
}

@media (max-width: 720px) {
  .shell,
  .narrow {
    width: min(calc(100% - 28px), var(--shell));
  }

  .brand-copy small {
    display: none;
  }

  h1 {
    font-size: clamp(2.8rem, 14vw, 4.5rem);
  }

  .hero {
    padding: 48px 0 42px;
  }

  .hero-grid {
    gap: 38px;
  }

  .hero-actions .button,
  .button-row .button {
    width: 100%;
  }

  .terminal-body {
    padding: 22px;
    font-size: 0.75rem;
  }

  .section {
    padding: 82px 0;
  }

  .section.compact {
    padding: 66px 0;
  }

  .section-title-row {
    display: grid;
    align-items: start;
    gap: 12px;
  }

  .stats-grid,
  .card-grid,
  .card-grid.three,
  .card-grid.four,
  .roadmap-grid,
  .skill-groups,
  .detail-sidebar,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .stat {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .stat:last-child {
    border-bottom: 0;
  }

  .project-card {
    min-height: auto;
  }

  .project-evidence {
    grid-template-columns: 1fr;
  }

  .timeline-heading,
  .resume-header,
  .resume-entry-head {
    display: grid;
  }

  .timeline-date,
  .resume-entry .date {
    order: -1;
  }

  .loop {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .loop-step:nth-child(even)::after {
    display: none;
  }

  .cta-panel {
    grid-template-columns: 1fr;
  }

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

  .page-hero,
  .detail-hero {
    padding-top: 66px;
  }

  .page-aside {
    display: none;
  }

  .detail-meta-grid,
  .architecture {
    grid-template-columns: 1fr;
  }

  .arch-node::after {
    content: "↓" !important;
    top: auto !important;
    right: 50% !important;
    bottom: -18px !important;
    transform: translateX(50%) !important;
  }

  .arch-node:last-child::after {
    display: none;
  }

  .resume-sheet {
    padding: 22px;
  }

  .resume-contact {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  body {
    background: #fff;
    color: #111;
  }

  body::before,
  .site-header,
  .site-footer,
  .print-hidden,
  .page-hero {
    display: none !important;
  }

  main,
  .section {
    overflow: visible;
    padding: 0;
  }

  .resume-sheet {
    border: 0;
    padding: 0;
    background: #fff;
    color: #111;
  }

  .resume-sheet p,
  .resume-sheet li,
  .resume-entry .sub,
  .resume-entry .date,
  .resume-contact {
    color: #333;
  }

  .resume-section h2 {
    color: #111;
  }
}


/* Contact page */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.contact-card {
  min-height: 390px;
  display: flex;
  flex-direction: column;
  padding: 30px;
}

.contact-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  margin-bottom: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 15px;
  background: linear-gradient(145deg, rgba(138, 167, 255, 0.16), rgba(118, 228, 196, 0.065));
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 750;
}

.contact-card h2 {
  margin: 10px 0 12px;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.contact-card p {
  max-width: 560px;
  color: var(--muted);
}

.contact-value {
  position: relative;
  z-index: 1;
  display: inline-block;
  width: fit-content;
  max-width: 100%;
  margin-top: 22px;
  color: var(--text);
  font-family: var(--mono);
  font-size: clamp(0.82rem, 1.7vw, 1rem);
  overflow-wrap: anywhere;
}

.contact-value:hover {
  color: var(--accent-2);
}

.contact-actions {
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding-top: 30px;
}

@media (max-width: 720px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-card {
    min-height: auto;
    padding: 24px;
  }
}


/* Contact and public profile */
.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 18px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.76rem;
}

.hero-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: color 150ms ease;
}

.hero-links a:hover {
  color: var(--text);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.contact-card {
  min-height: 440px;
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 4vw, 40px);
}

.contact-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  margin: 44px 0 24px;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(138, 167, 255, 0.14), rgba(118, 228, 196, 0.055));
  color: var(--accent-2);
  font-family: var(--mono);
  font-size: 0.92rem;
  font-weight: 750;
}

.contact-card h2 {
  margin-bottom: 12px;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.contact-value {
  position: relative;
  z-index: 1;
  display: inline-block;
  width: fit-content;
  max-width: 100%;
  margin-bottom: 18px;
  color: #dbe4ff;
  font-family: var(--mono);
  font-size: clamp(0.8rem, 1.7vw, 1.02rem);
  overflow-wrap: anywhere;
}

.contact-value:hover {
  color: var(--accent-2);
}

.contact-card p {
  max-width: 540px;
  margin-bottom: 26px;
  color: var(--muted);
}

.contact-actions {
  position: relative;
  z-index: 1;
  margin-top: auto;
}

.contact-topic {
  min-height: 250px;
  padding: 26px;
}

.contact-topic h3 {
  margin-top: 44px;
}

.contact-topic p {
  margin-bottom: 0;
  color: var(--muted);
}

@media (max-width: 720px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-card {
    min-height: auto;
  }

  .hero-links {
    display: grid;
    gap: 8px;
  }
}


/* PUBLIC-EVIDENCE-PAGES */
.evidence-page .detail-content{min-width:0}
.evidence-section{padding-top:34px;margin-top:34px;border-top:1px solid var(--line)}
.evidence-section h2,.evidence-section h3,.evidence-section h4{scroll-margin-top:110px}
.evidence-section h2{font-size:clamp(1.45rem,3vw,2rem);margin:0 0 18px}
.evidence-section h3{font-size:1.3rem;margin:30px 0 14px;color:var(--text)}
.evidence-section h4{font-size:1.05rem;margin:24px 0 10px;color:var(--text)}
.evidence-section p,.evidence-section li{color:var(--muted);line-height:1.82}
.evidence-section table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.9rem}
.evidence-section th,.evidence-section td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.evidence-section th{background:rgba(255,255,255,.035);color:var(--text)}
.evidence-section pre{overflow:auto;padding:20px;border:1px solid var(--line);border-radius:14px;background:#06080d;color:#dbe5ff}
.evidence-section code{font-family:var(--mono);font-size:.88em}
.evidence-section blockquote{margin:20px 0;padding:4px 0 4px 18px;border-left:3px solid var(--accent);color:var(--muted)}
.project-figure{margin:34px 0;padding:14px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.02)}
.project-figure img{display:block;width:100%;height:auto;border-radius:11px;background:#fff}
.project-figure figcaption{padding:12px 4px 2px;color:var(--muted);font-size:.86rem;line-height:1.6}
.source-banner{margin:38px 0;padding:26px;border:1px solid rgba(137,177,255,.28);border-radius:18px;background:linear-gradient(135deg,rgba(112,143,255,.10),rgba(83,220,187,.05))}
.source-banner h2{margin:8px 0 10px;font-size:1.45rem}
.source-banner p{color:var(--muted)}
@media(max-width:760px){.evidence-section table{display:block;overflow-x:auto}.project-figure{padding:8px}.source-banner{padding:20px}}