:root {
  --bg: #07101d;
  --bg-elevated: #0c1728;
  --bg-soft: #101e32;
  --panel: rgba(14, 27, 46, 0.82);
  --panel-solid: #0e1b2e;
  --panel-2: #14243a;
  --text: #eaf2ff;
  --text-soft: #aebed3;
  --text-faint: #72839a;
  --line: rgba(159, 185, 216, 0.17);
  --line-strong: rgba(159, 185, 216, 0.3);
  --accent: #52e0c4;
  --accent-2: #8a7cff;
  --accent-3: #ffb55e;
  --danger: #ff6b88;
  --safe: #53e69d;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
  --shadow-soft: 0 12px 36px rgba(0, 0, 0, 0.2);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --max-width: 1240px;
  --header-height: 76px;
  --font-sans: Inter, Pretendard, "Noto Sans KR", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

html[data-theme="light"] {
  --bg: #f4f7fb;
  --bg-elevated: #ffffff;
  --bg-soft: #edf3f9;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-solid: #ffffff;
  --panel-2: #eef4fa;
  --text: #142033;
  --text-soft: #52657d;
  --text-faint: #7b8ca0;
  --line: rgba(27, 55, 86, 0.13);
  --line-strong: rgba(27, 55, 86, 0.24);
  --accent: #0c967f;
  --accent-2: #6555db;
  --accent-3: #b66c15;
  --danger: #d74261;
  --safe: #078c56;
  --shadow: 0 24px 70px rgba(56, 79, 106, 0.16);
  --shadow-soft: 0 12px 36px rgba(56, 79, 106, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 24px); }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 18% 8%, rgba(82, 224, 196, 0.06), transparent 30%),
    radial-gradient(circle at 82% 18%, rgba(138, 124, 255, 0.07), transparent 30%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.65;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(82, 224, 196, 0.28); color: var(--text); }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
code, pre { font-family: var(--font-mono); }
img, svg { max-width: 100%; }

.lang-en { display: none !important; }
html[lang="en"] .lang-ko { display: none !important; }
html[lang="en"] .lang-en { display: inline !important; }
html[lang="en"] .lang-en:is(div, p, li) { display: block !important; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  transform: translateY(-150%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 0.2s ease;
}
.skip-link:focus { transform: translateY(0); }

.ambient {
  position: fixed;
  z-index: -1;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.1;
  pointer-events: none;
}
.ambient-one { top: 14vh; left: -220px; background: var(--accent); }
.ambient-two { top: 55vh; right: -260px; background: var(--accent-2); }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--header-height);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
}
.header-inner {
  width: min(calc(100% - 40px), var(--max-width));
  min-height: var(--header-height);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark { width: 38px; height: 38px; color: var(--accent); }
.brand-copy { display: grid; line-height: 1.05; }
.brand-copy strong { font-size: 1rem; letter-spacing: 0.03em; }
.brand-copy small { color: var(--text-faint); font-size: 0.76rem; letter-spacing: 0.16em; margin-top: 5px; }
.desktop-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.desktop-nav a {
  position: relative;
  color: var(--text-soft);
  font-size: 0.94rem;
  font-weight: 700;
  transition: color 0.2s ease;
}
.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -10px;
  height: 2px;
  background: var(--accent);
  transition: right 0.25s ease;
}
.desktop-nav a:hover, .desktop-nav a.active { color: var(--text); }
.desktop-nav a:hover::after, .desktop-nav a.active::after { right: 0; }
.header-controls { display: flex; align-items: center; gap: 9px; }
.language-switch {
  display: flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-soft);
}
.language-switch button {
  border: 0;
  background: transparent;
  color: var(--text-faint);
  padding: 6px 9px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  cursor: pointer;
}
.language-switch button[aria-pressed="true"] { background: var(--text); color: var(--bg); }
.icon-button, .mobile-menu-button {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--bg-soft);
  cursor: pointer;
  display: grid;
  place-items: center;
}
.icon-button svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme="dark"] .icon-moon { display: none; }
html[data-theme="light"] .icon-sun { display: none; }
.mobile-menu-button { display: none; border-radius: 12px; padding: 9px; gap: 4px; }
.mobile-menu-button > span:not(.sr-only) { width: 17px; height: 2px; background: currentColor; border-radius: 2px; }
.mobile-nav { width: min(calc(100% - 40px), var(--max-width)); margin: 0 auto; padding: 8px 0 18px; display: grid; gap: 4px; }
.mobile-nav[hidden] { display: none; }
.mobile-nav a { padding: 10px 12px; border-radius: 10px; color: var(--text-soft); font-weight: 700; }
.mobile-nav a:hover { background: var(--bg-soft); color: var(--text); }

.hero {
  min-height: min(780px, calc(100vh - var(--header-height)));
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(440px, 0.98fr);
  align-items: center;
  gap: 56px;
  padding-top: 82px;
  padding-bottom: 88px;
}
.eyebrow-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.11em;
}
.eyebrow.muted { color: var(--text-faint); border-color: var(--line); background: transparent; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 13%, transparent); }
.hero h1 {
  margin: 0;
  max-width: 700px;
  font-size: clamp(2.65rem, 5.4vw, 5.25rem);
  line-height: 1.04;
  letter-spacing: -0.055em;
  font-weight: 850;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-lead { max-width: 680px; margin: 26px 0 0; color: var(--text-soft); font-size: clamp(1rem, 1.5vw, 1.18rem); line-height: 1.8; }
.hero-lead strong { color: var(--text); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 19px;
  border-radius: 13px;
  border: 1px solid var(--line);
  font-weight: 800;
  font-size: 1rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--accent); color: #071311; border-color: transparent; box-shadow: 0 12px 35px color-mix(in srgb, var(--accent) 20%, transparent); }
html[data-theme="light"] .button.primary { color: #fff; }
.button.secondary { background: var(--panel); color: var(--text); }
.button.secondary:hover { border-color: var(--line-strong); box-shadow: var(--shadow-soft); }
.hero-facts { list-style: none; padding: 0; margin: 34px 0 0; display: flex; flex-wrap: wrap; gap: 22px; }
.hero-facts li { display: grid; gap: 2px; padding-right: 22px; border-right: 1px solid var(--line); }
.hero-facts li:last-child { border-right: 0; }
.hero-facts strong { font-family: var(--font-mono); font-size: 0.94rem; }
.hero-facts span { color: var(--text-faint); font-size: 0.86rem; }
.hero-visual { position: relative; }
.terminal-card {
  position: relative;
  padding: 0 22px 24px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-solid) 94%, var(--accent-2) 6%), var(--panel-solid));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.terminal-card::before {
  content: "";
  position: absolute;
  inset: 0;
  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: 28px 28px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent 80%);
  pointer-events: none;
}
.terminal-topbar { position: relative; margin: 0 -22px 22px; height: 52px; padding: 0 20px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 12px; color: var(--text-faint); font: 0.8rem var(--font-mono); letter-spacing: 0.04em; }
.terminal-dots { display: flex; gap: 6px; }
.terminal-dots i { width: 7px; height: 7px; border-radius: 50%; background: var(--text-faint); opacity: 0.45; }
.terminal-live { margin-left: auto; color: var(--safe); display: flex; align-items: center; gap: 6px; }
.terminal-live i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 10px currentColor; }
.stream-labels { position: relative; display: flex; justify-content: space-between; color: var(--text-faint); font-size: 0.8rem; font-weight: 800; letter-spacing: 0.07em; margin-bottom: 10px; }
.accent-label { color: var(--accent); }
.block-stream { position: relative; display: grid; grid-template-columns: 1.35fr 0.42fr 1fr 0.42fr 1.15fr 0.42fr; gap: 7px; }
.stream-block { min-width: 0; height: 94px; border: 1px solid var(--line); border-radius: 12px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; background: var(--bg-soft); }
.stream-block b { font: 800 0.94rem var(--font-mono); }
.stream-block small { color: var(--text-faint); font: 0.76rem var(--font-mono); }
.stream-block.dynamic { background: color-mix(in srgb, var(--accent-2) 12%, var(--bg-soft)); border-color: color-mix(in srgb, var(--accent-2) 30%, var(--line)); }
.stream-block.fixed { background: color-mix(in srgb, var(--accent) 10%, var(--bg-soft)); border-color: color-mix(in srgb, var(--accent) 26%, var(--line)); }
.stream-block.stored { background: color-mix(in srgb, var(--accent-3) 10%, var(--bg-soft)); border-color: color-mix(in srgb, var(--accent-3) 26%, var(--line)); }
.stream-block.npncb { background: color-mix(in srgb, var(--danger) 12%, var(--bg-soft)); border-color: color-mix(in srgb, var(--danger) 45%, var(--line)); color: var(--danger); }
.stream-block.pulse { animation: blockPulse 2.8s ease-in-out infinite; }
@keyframes blockPulse { 0%,100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--danger) 0%, transparent); } 50% { box-shadow: 0 0 0 7px color-mix(in srgb, var(--danger) 8%, transparent); } }
.bit-console { position: relative; margin-top: 18px; padding: 16px; border-radius: 12px; background: #050b13; border: 1px solid rgba(255,255,255,0.08); font: 0.8rem/1.8 var(--font-mono); overflow-x: auto; white-space: nowrap; }
html[data-theme="light"] .bit-console { background: #142033; color: #eaf2ff; }
.bit-console span { padding: 4px 5px; border-radius: 5px; }
.bit-console .faded { color: #607087; }
.header-bits { color: #f0f6ff; background: rgba(138,124,255,0.2); }
.dba-bits { color: #071311; background: var(--accent); }
.len-bits { color: #ffd398; background: rgba(255,181,94,0.18); }
.nlen-bits { color: #ff9db0; background: rgba(255,107,136,0.14); }
.terminal-grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
.terminal-grid > div { padding: 13px 14px; border: 1px solid var(--line); border-radius: 11px; background: color-mix(in srgb, var(--bg-soft) 82%, transparent); display: grid; gap: 4px; }
.metric-label { color: var(--text-faint); font-size: 0.8rem; }
.terminal-grid strong { font-size: 0.94rem; }
.metric-safe { color: var(--safe); }
.metric-found { color: var(--accent-3); }
.floating-note { position: absolute; z-index: 2; min-width: 145px; padding: 10px 13px; border: 1px solid var(--line-strong); border-radius: 12px; background: color-mix(in srgb, var(--panel-solid) 92%, transparent); box-shadow: var(--shadow-soft); backdrop-filter: blur(14px); display: grid; gap: 2px; }
.floating-note span { color: var(--accent); font: 0.76rem var(--font-mono); letter-spacing: 0.06em; }
.floating-note b { font-size: 0.86rem; white-space: nowrap; }
.note-one { left: -26px; top: -30px; }
.note-two { right: -24px; bottom: -28px; }

.research-notice {
  margin-top: 8px;
  margin-bottom: 110px;
  padding: 24px 26px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  border: 1px solid color-mix(in srgb, var(--accent-3) 35%, var(--line));
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--accent-3) 7%, var(--panel));
}
.notice-icon { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: var(--accent-3); color: #2d1903; font-weight: 900; }
.research-notice h2 { margin: 0 0 5px; font-size: 1rem; }
.research-notice p { margin: 0; color: var(--text-soft); font-size: 0.94rem; }
.research-notice strong { color: var(--text); }

.content-section { padding-top: 36px; padding-bottom: 116px; }
.section-heading { max-width: 780px; margin-bottom: 44px; }
.section-heading.compact { margin-bottom: 28px; }
.section-kicker, .mini-label { color: var(--accent); font: 800 0.8rem var(--font-mono); letter-spacing: 0.12em; }
.section-heading h2 { margin: 10px 0 14px; font-size: clamp(2rem, 4.2vw, 3.65rem); line-height: 1.13; letter-spacing: -0.045em; }
.section-heading p { margin: 0; color: var(--text-soft); font-size: 1rem; }

.concept-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.concept-card { position: relative; min-height: 300px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel); overflow: hidden; }
.concept-card::after { content: ""; position: absolute; width: 130px; height: 130px; border-radius: 50%; right: -55px; bottom: -65px; background: var(--accent); filter: blur(55px); opacity: 0.08; }
.card-index { position: absolute; right: 20px; top: 18px; color: var(--text-faint); font: 0.8rem var(--font-mono); }
.card-icon { width: 50px; height: 50px; margin-bottom: 42px; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--bg-soft); }
.block-icon { display: flex; align-items: center; justify-content: center; gap: 3px; }
.block-icon span { display: block; width: 8px; border-radius: 2px; background: var(--accent); }
.block-icon span:nth-child(1) { height: 23px; }
.block-icon span:nth-child(2) { height: 13px; background: var(--accent-2); }
.block-icon span:nth-child(3) { height: 18px; background: var(--accent-3); }
.dba-icon { display: flex; align-items: center; justify-content: center; gap: 3px; }
.dba-icon i { width: 5px; height: 20px; background: var(--danger); border-radius: 2px; opacity: 0.35; }
.dba-icon i:nth-child(2), .dba-icon i:nth-child(4) { opacity: 1; }
.channel-icon { display: flex; align-items: center; justify-content: center; gap: 4px; }
.channel-icon span { font: 700 0.8rem var(--font-mono); color: var(--accent); }
.concept-card h3 { margin: 0 0 10px; font-size: 1.3rem; }
.concept-card p { margin: 0; color: var(--text-soft); font-size: 1rem; }
.concept-card strong { color: var(--text); }
.block-types-panel { margin-top: 24px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); }
.panel-heading { display: flex; justify-content: space-between; gap: 20px; align-items: end; margin-bottom: 22px; }
.panel-heading h3 { margin: 6px 0 0; font-size: 1.28rem; }
.panel-note { color: var(--text-faint); font-size: 0.86rem; }
.block-type-table { display: grid; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.type-row { display: grid; grid-template-columns: 0.55fr 1.25fr 2fr 1.45fr; align-items: center; min-height: 58px; border-top: 1px solid var(--line); }
.type-row:first-child { border-top: 0; }
.type-row > * { padding: 12px 16px; }
.type-row code { color: var(--accent); font-weight: 900; }
.type-row span { color: var(--text-soft); font-size: 0.94rem; }
.type-head { min-height: 42px; background: var(--bg-soft); color: var(--text-faint); font-size: 0.8rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
.type-head > * { color: var(--text-faint); }
.type-row.reserved { opacity: 0.58; }

.anatomy-figure { margin: 0; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); box-shadow: var(--shadow-soft); }
.anatomy-figure figcaption { margin-bottom: 18px; color: var(--text-faint); font-size: 0.86rem; }
.bit-layout { display: grid; grid-template-columns: 0.62fr 0.8fr 1.3fr 1.65fr 1.65fr 1.2fr; gap: 5px; }
.field { min-height: 125px; padding: 14px 10px; border-radius: 11px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; border: 1px solid var(--line); background: var(--bg-soft); }
.field b { font: 800 0.86rem var(--font-mono); }
.field span { margin-top: 6px; color: var(--text-soft); font-size: 0.8rem; }
.field small { color: var(--text-faint); font-size: 0.76rem; margin-top: 5px; }
.field-final, .field-type { border-color: color-mix(in srgb, var(--accent-2) 40%, var(--line)); background: color-mix(in srgb, var(--accent-2) 10%, var(--bg-soft)); }
.field-dba { border-color: color-mix(in srgb, var(--accent) 48%, var(--line)); background: color-mix(in srgb, var(--accent) 13%, var(--bg-soft)); box-shadow: inset 0 0 24px color-mix(in srgb, var(--accent) 7%, transparent); }
.field-dba b { color: var(--accent); font-size: 1rem; }
.field-len { border-color: color-mix(in srgb, var(--accent-3) 38%, var(--line)); }
.field-nlen { border-color: color-mix(in srgb, var(--danger) 35%, var(--line)); }
.field-empty { border-style: dashed; }
.hex-annotation { margin-top: 10px; display: grid; grid-template-columns: 1.42fr 1.25fr 1.2fr 1.65fr 1.65fr; gap: 5px; font: 0.8rem var(--font-mono); color: var(--text-faint); text-align: center; }
.hex-annotation span { padding: 8px 5px; border-radius: 7px; background: color-mix(in srgb, var(--bg-soft) 65%, transparent); }
.hex-dba { color: var(--accent) !important; }
.hex-len { color: var(--accent-3) !important; }
.hex-nlen { color: var(--danger) !important; }
.anatomy-notes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.fact-panel { position: relative; padding: 26px 28px 26px 76px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel); }
.fact-number { position: absolute; left: 24px; top: 25px; width: 32px; height: 32px; display: grid; place-items: center; border-radius: 10px; background: var(--bg-soft); color: var(--accent); font: 800 0.8rem var(--font-mono); }
.fact-panel h3 { margin: 0 0 7px; font-size: 1rem; }
.fact-panel p { margin: 0; color: var(--text-soft); font-size: 0.94rem; }
.interactive-lab { margin-top: 24px; padding: 28px; border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line)); border-radius: var(--radius-xl); background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 5%, var(--panel)), var(--panel)); }
.lab-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 26px; }
.lab-heading h3 { margin: 6px 0 0; font-size: 1.3rem; }
.lab-badge { color: var(--text-faint); border: 1px solid var(--line); border-radius: 999px; padding: 6px 10px; font-size: 0.8rem; }
.lab-grid { display: grid; grid-template-columns: 0.85fr 1.25fr; gap: 32px; }
.lab-controls { display: grid; align-content: start; gap: 9px; }
.lab-controls label { display: flex; justify-content: space-between; align-items: center; gap: 14px; color: var(--text-soft); font-size: 0.86rem; font-weight: 700; margin-top: 5px; }
.lab-controls output { min-width: 34px; text-align: center; color: var(--accent); font: 800 0.86rem var(--font-mono); }
.lab-controls input[type="range"] { width: 100%; accent-color: var(--accent); }
.lab-controls input[type="text"] { width: 100%; min-height: 44px; padding: 0 13px; color: var(--text); background: var(--bg-soft); border: 1px solid var(--line); border-radius: 10px; outline: none; }
.lab-controls input[type="text"]:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent); }
.lab-disclaimer { margin: 8px 0 0; color: var(--text-faint); font-size: 0.8rem; }
.lab-output { min-width: 0; }
.bit-byte-labels { display: grid; grid-template-columns: 1fr 1fr; color: var(--text-faint); font: 0.76rem var(--font-mono); text-align: center; margin-bottom: 6px; }
.bit-cells { display: grid; grid-template-columns: repeat(16, 1fr); gap: 3px; }
.bit-cell { aspect-ratio: 0.72; min-height: 42px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 5px; background: var(--bg-soft); color: var(--text-faint); font: 0.76rem var(--font-mono); position: relative; }
.bit-cell:nth-child(8) { margin-right: 5px; }
.bit-cell.previous { background: color-mix(in srgb, var(--text-faint) 8%, var(--bg-soft)); opacity: 0.55; }
.bit-cell.header { background: color-mix(in srgb, var(--accent-2) 23%, var(--bg-soft)); border-color: color-mix(in srgb, var(--accent-2) 55%, var(--line)); color: var(--text); }
.bit-cell.dba { background: color-mix(in srgb, var(--accent) 30%, var(--bg-soft)); border-color: color-mix(in srgb, var(--accent) 60%, var(--line)); color: var(--accent); font-weight: 900; }
.bit-cell.next { background: color-mix(in srgb, var(--accent-3) 18%, var(--bg-soft)); border-color: color-mix(in srgb, var(--accent-3) 40%, var(--line)); color: var(--accent-3); }
.bit-cell.unused { opacity: 0.25; }
.legend-row { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 10px; color: var(--text-faint); font-size: 0.8rem; }
.legend-row > span { display: inline-flex; align-items: center; gap: 6px; }
.legend-row i { width: 9px; height: 9px; border-radius: 2px; background: var(--bg-soft); border: 1px solid var(--line); }
.legend-row .legend-header { background: var(--accent-2); }
.legend-row .legend-dba { background: var(--accent); }
.legend-row .legend-next { background: var(--accent-3); }
.lab-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 18px; }
.lab-metrics > div { padding: 13px 14px; border: 1px solid var(--line); border-radius: 10px; background: color-mix(in srgb, var(--bg-soft) 80%, transparent); display: grid; gap: 4px; }
.lab-metrics span { color: var(--text-faint); font-size: 0.8rem; }
.lab-metrics strong { font: 800 0.94rem var(--font-mono); }
.fit-good { color: var(--safe); }
.fit-tight { color: var(--accent-3); }
.fit-bad { color: var(--danger); }

.pipeline-grid { display: grid; grid-template-columns: 1fr 64px 1fr; align-items: stretch; gap: 8px; }
.pipeline-card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); }
.embed-card { border-color: color-mix(in srgb, var(--accent) 28%, var(--line)); }
.restore-card { border-color: color-mix(in srgb, var(--accent-2) 28%, var(--line)); }
.pipeline-title { display: flex; justify-content: space-between; gap: 18px; align-items: start; margin-bottom: 24px; }
.pipeline-title h3 { margin: 0; font-size: 1.35rem; }
.pipeline-label { color: var(--accent); font: 800 0.8rem var(--font-mono); letter-spacing: 0.12em; border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line)); border-radius: 999px; padding: 5px 8px; }
.restore-card .pipeline-label { color: var(--accent-2); border-color: color-mix(in srgb, var(--accent-2) 30%, var(--line)); }
.pipeline-steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.pipeline-steps li { display: grid; grid-template-columns: 58px 1fr; gap: 13px; align-items: center; padding: 13px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-soft); }
.step-token { min-height: 36px; display: grid; place-items: center; border-radius: 8px; background: color-mix(in srgb, var(--accent) 10%, var(--panel-solid)); color: var(--accent); font: 800 0.8rem var(--font-mono); text-align: center; }
.restore-card .step-token { background: color-mix(in srgb, var(--accent-2) 10%, var(--panel-solid)); color: var(--accent-2); }
.pipeline-steps div { display: grid; gap: 2px; }
.pipeline-steps b { font-size: 0.86rem; }
.pipeline-steps small { color: var(--text-faint); font: 0.8rem var(--font-mono); }
.pipeline-divider { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 7px; color: var(--text-faint); }
.pipeline-divider span { width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; background: var(--bg-soft); color: var(--accent); font-size: 1.3rem; }
.pipeline-divider small { writing-mode: vertical-rl; letter-spacing: 0.08em; font: 0.76rem var(--font-mono); }
.decoder-split { margin-top: 24px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); display: grid; grid-template-columns: 0.7fr 1fr 1fr; gap: 20px; align-items: center; }
.split-source { display: grid; justify-items: center; gap: 12px; }
.zip-cube { width: 92px; height: 92px; display: grid; place-items: center; border: 1px solid color-mix(in srgb, var(--accent-3) 45%, var(--line)); border-radius: 22px; background: color-mix(in srgb, var(--accent-3) 11%, var(--bg-soft)); color: var(--accent-3); font: 900 1.1rem var(--font-mono); box-shadow: inset -10px -10px 20px rgba(0,0,0,0.12); }
.split-path { display: grid; grid-template-columns: 28px 1fr; align-items: center; }
.path-line { height: 1px; background: linear-gradient(90deg, var(--line), var(--accent)); position: relative; }
.path-line::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 1px solid var(--accent); border-right: 1px solid var(--accent); transform: rotate(45deg); }
.custom-path .path-line { background: linear-gradient(90deg, var(--line), var(--accent-2)); }
.custom-path .path-line::after { border-color: var(--accent-2); }
.path-card { padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-soft); }
.path-card b { font-size: 0.94rem; }
.path-card p { margin: 5px 0 12px; color: var(--text-faint); font-size: 0.86rem; }
.result-pill { display: inline-flex; padding: 5px 8px; border-radius: 999px; font: 800 0.76rem var(--font-mono); }
.result-pill.safe { color: var(--safe); background: color-mix(in srgb, var(--safe) 10%, transparent); border: 1px solid color-mix(in srgb, var(--safe) 25%, transparent); }
.result-pill.found { color: var(--accent-3); background: color-mix(in srgb, var(--accent-3) 10%, transparent); border: 1px solid color-mix(in srgb, var(--accent-3) 25%, transparent); }

.adaptive-diagram { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); }
.adaptive-input { display: flex; align-items: center; gap: 18px; margin-bottom: 18px; }
.data-wave { flex: 1; height: 42px; display: flex; align-items: end; gap: 5px; padding: 4px 10px; border-radius: 10px; background: var(--bg-soft); }
.data-wave i { flex: 1; min-width: 4px; background: linear-gradient(to top, var(--accent-2), var(--accent)); border-radius: 3px 3px 1px 1px; opacity: 0.7; }
.data-wave i:nth-child(1) { height: 24%; }.data-wave i:nth-child(2) { height: 72%; }.data-wave i:nth-child(3) { height: 44%; }.data-wave i:nth-child(4) { height: 90%; }.data-wave i:nth-child(5) { height: 56%; }.data-wave i:nth-child(6) { height: 32%; }.data-wave i:nth-child(7) { height: 80%; }.data-wave i:nth-child(8) { height: 48%; }.data-wave i:nth-child(9) { height: 68%; }.data-wave i:nth-child(10) { height: 30%; }.data-wave i:nth-child(11) { height: 86%; }.data-wave i:nth-child(12) { height: 52%; }
.adaptive-candidates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.candidate { min-height: 115px; padding: 17px; border: 1px solid var(--line); border-radius: 13px; background: var(--bg-soft); display: grid; align-content: center; gap: 4px; position: relative; }
.candidate > span { position: absolute; right: 13px; top: 11px; color: var(--text-faint); font: 0.8rem var(--font-mono); }
.candidate b { font-size: 1rem; }
.candidate small { color: var(--text-faint); font: 0.76rem/1.45 var(--font-mono); }
.candidate-stored { border-color: color-mix(in srgb, var(--accent-3) 25%, var(--line)); }
.candidate-fixed { border-color: color-mix(in srgb, var(--accent) 25%, var(--line)); }
.candidate-dynamic { border-color: color-mix(in srgb, var(--accent-2) 25%, var(--line)); }
.adaptive-choice { margin-top: 13px; display: grid; grid-template-columns: auto 34px 1fr 34px 1fr; align-items: center; gap: 7px; }
.argmin { min-height: 58px; padding: 0 18px; border-radius: 12px; background: var(--text); color: var(--bg); display: grid; place-items: center; font: 900 0.94rem var(--font-mono); }
.adaptive-choice > span { text-align: center; color: var(--text-faint); }
.winner, .npncb-train { min-height: 58px; padding: 9px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-soft); display: grid; align-content: center; gap: 1px; }
.winner b, .npncb-train b { font-size: 0.86rem; }
.winner small, .npncb-train small { color: var(--text-faint); font-size: 0.8rem; }
.npncb-train { border-color: color-mix(in srgb, var(--danger) 38%, var(--line)); color: var(--danger); }
.poc-details-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.project-card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); }
.project-head { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.project-icon { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; font-size: 1.2rem; font-weight: 300; }
.inserter-icon { background: color-mix(in srgb, var(--accent) 12%, var(--bg-soft)); border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line)); color: var(--accent); }
.restorer-icon { background: color-mix(in srgb, var(--accent-2) 12%, var(--bg-soft)); border: 1px solid color-mix(in srgb, var(--accent-2) 30%, var(--line)); color: var(--accent-2); }
.project-head h3 { margin: 4px 0 0; font: 800 1.1rem var(--font-mono); }
.feature-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.feature-list li { position: relative; padding-left: 19px; color: var(--text-soft); font-size: 0.94rem; }
.feature-list li::before { content: ""; position: absolute; left: 0; top: 0.7em; width: 7px; height: 2px; background: var(--accent); }
.project-card:nth-child(2) .feature-list li::before { background: var(--accent-2); }
.project-command { margin-top: 22px; padding: 12px; border: 1px solid var(--line); border-radius: 11px; background: #050b13; display: flex; align-items: center; gap: 12px; }
html[data-theme="light"] .project-command { background: #142033; color: #eaf2ff; }
.project-command code { min-width: 0; flex: 1; overflow-x: auto; white-space: nowrap; font-size: 0.8rem; }
.copy-button { border: 1px solid var(--line-strong); background: var(--bg-soft); border-radius: 8px; padding: 6px 9px; color: var(--text-soft); font-size: 0.8rem; font-weight: 800; cursor: pointer; flex-shrink: 0; }
.project-command .copy-button { background: rgba(255,255,255,0.07); color: #dbe7f7; border-color: rgba(255,255,255,0.12); }
.copy-button:hover { color: var(--text); border-color: var(--accent); }
.code-and-limits { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; margin-top: 16px; }
.code-panel, .limits-panel { border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); overflow: hidden; }
.code-panel-head { min-height: 82px; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; gap: 16px; border-bottom: 1px solid var(--line); }
.code-panel-head h3 { margin: 4px 0 0; font-size: 1rem; }
.code-panel pre { margin: 0; padding: 26px; overflow-x: auto; background: #050b13; color: #dce8f6; font: 0.86rem/1.8 var(--font-mono); }
.code-comment { color: #6d8097; }
.limits-panel { padding: 26px; }
.limits-panel h3 { margin: 7px 0 18px; font-size: 1.05rem; }
.limits-panel ul { margin: 0; padding-left: 19px; color: var(--text-soft); display: grid; gap: 10px; font-size: 0.86rem; }
.downloads { margin-top: 24px; padding: 30px; border-radius: var(--radius-xl); border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line)); background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 7%, var(--panel)), var(--panel)); display: grid; grid-template-columns: 0.75fr 1.25fr; gap: 30px; align-items: center; }
.downloads-copy h3 { margin: 8px 0 10px; font-size: 1.35rem; }
.downloads-copy p { margin: 0; color: var(--text-soft); font-size: 0.94rem; }
.download-list { display: grid; gap: 8px; }
.download-item { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 13px 15px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-soft); transition: transform 0.2s ease, border-color 0.2s ease; }
.download-item:hover { transform: translateX(3px); border-color: var(--accent); }
.download-symbol { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px; color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.download-item > span:nth-child(2) { display: grid; gap: 2px; }
.download-item b { font: 800 0.86rem var(--font-mono); }
.download-item small { color: var(--text-faint); font-size: 0.8rem; }
.download-item code { color: var(--text-faint); font-size: 0.8rem; }
.checksum-link { justify-self: end; color: var(--accent); font-size: 0.86rem; font-weight: 800; padding-top: 4px; }

.signal-board { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); }
.signal-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.signal-heading h3 { margin: 0; font-size: 1.2rem; }
.signal-heading > span { color: var(--text-faint); border: 1px solid var(--line); border-radius: 999px; padding: 5px 9px; font-size: 0.8rem; }
.signal-row { display: grid; grid-template-columns: 1.25fr 0.8fr 80px; gap: 20px; align-items: center; min-height: 76px; border-top: 1px solid var(--line); }
.signal-row:first-of-type { border-top: 0; }
.signal-row > div:first-child { display: grid; gap: 2px; }
.signal-row b { font-size: 0.94rem; }
.signal-row small { color: var(--text-faint); font-size: 0.8rem; }
.signal-row > strong { text-align: right; color: var(--text-faint); font: 800 0.8rem var(--font-mono); }
.signal-meter { height: 7px; border-radius: 999px; background: var(--bg-soft); overflow: hidden; }
.signal-meter i { display: block; height: 100%; width: var(--score); border-radius: inherit; background: linear-gradient(90deg, var(--accent-2), var(--accent)); }
.defense-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; margin-top: 20px; }
.defense-card { min-height: 270px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel); }
.defense-step { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: var(--bg-soft); color: var(--accent); font: 800 0.8rem var(--font-mono); }
.defense-card h3 { margin: 40px 0 9px; font-size: 1rem; }
.defense-card p { margin: 0; color: var(--text-soft); font-size: 0.94rem; }
.interpretation-panel { margin-top: 20px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); }
.interpretation-title h3 { margin: 7px 0 22px; font-size: 1.3rem; }
.interpretation-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.interpretation-columns > div { padding: 22px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-soft); }
.interpretation-columns b { display: inline-flex; margin-bottom: 12px; font-size: 0.94rem; }
.is-column b { color: var(--safe); }
.not-column b { color: var(--danger); }
.interpretation-columns ul { margin: 0; padding-left: 18px; color: var(--text-soft); font-size: 0.86rem; display: grid; gap: 8px; }

.faq-list { display: grid; gap: 9px; }
.faq-list details { border: 1px solid var(--line); border-radius: 14px; background: var(--panel); overflow: hidden; }
.faq-list summary { cursor: pointer; list-style: none; padding: 19px 56px 19px 22px; font-weight: 800; font-size: 1rem; position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); color: var(--accent); font-size: 1.2rem; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details[open] summary { border-bottom: 1px solid var(--line); }
.faq-list details p { margin: 0; padding: 18px 22px 22px; color: var(--text-soft); font-size: 0.94rem; }

.references { padding-bottom: 90px; }
.reference-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.reference-list li { display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.ref-number { color: var(--accent); font: 800 0.86rem var(--font-mono); }
.reference-list b { font-size: 0.94rem; }
.reference-list p { margin: 6px 0 7px; color: var(--text-soft); font-size: 0.86rem; }
.reference-list a { color: var(--accent); font-size: 0.86rem; font-weight: 800; }

.closing { position: relative; margin-bottom: 88px; padding: 52px; border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line)); border-radius: var(--radius-xl); background: var(--panel); display: flex; justify-content: space-between; align-items: end; gap: 30px; overflow: hidden; }
.closing-pattern { position: absolute; inset: 0; opacity: 0.05; background-image: repeating-linear-gradient(90deg, transparent 0 18px, var(--accent) 18px 19px), repeating-linear-gradient(0deg, transparent 0 18px, var(--accent) 18px 19px); mask-image: linear-gradient(90deg, transparent, #000); pointer-events: none; }
.closing-copy { position: relative; max-width: 760px; }
.closing h2 { margin: 9px 0 11px; font-size: clamp(1.8rem, 4vw, 3.2rem); line-height: 1.15; letter-spacing: -0.04em; }
.closing p { margin: 0; color: var(--text-soft); }
.closing .button { position: relative; flex-shrink: 0; }
.site-footer { border-top: 1px solid var(--line); background: color-mix(in srgb, var(--bg-elevated) 60%, transparent); }
.footer-inner { min-height: 150px; display: grid; grid-template-columns: 1fr auto; grid-template-rows: auto auto; gap: 12px 30px; align-content: center; }
.footer-brand b { font: 800 0.94rem var(--font-mono); }
.footer-brand p { margin: 4px 0 0; color: var(--text-faint); font-size: 0.86rem; }
.footer-links { display: flex; gap: 16px; align-items: center; }
.footer-links a { color: var(--text-soft); font: 700 0.8rem var(--font-mono); }
.footer-links a:hover { color: var(--accent); }
.footer-meta { grid-column: 1 / -1; color: var(--text-faint); font: 0.8rem var(--font-mono); display: flex; gap: 8px; }
.toast { position: fixed; z-index: 200; left: 50%; bottom: 24px; transform: translate(-50%, 20px); padding: 10px 14px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--text); color: var(--bg); font-size: 0.86rem; font-weight: 800; opacity: 0; pointer-events: none; transition: opacity 0.2s ease, transform 0.2s ease; box-shadow: var(--shadow-soft); }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
@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 (max-width: 1060px) {
  .desktop-nav { gap: 18px; }
  .hero { grid-template-columns: 1fr; gap: 52px; padding-top: 72px; }
  .hero-copy { max-width: 820px; }
  .hero-visual { max-width: 720px; width: 100%; justify-self: center; }
  .concept-grid { grid-template-columns: 1fr 1fr; }
  .concept-card:last-child { grid-column: 1 / -1; min-height: 250px; }
  .defense-grid { grid-template-columns: 1fr 1fr; }
  .adaptive-choice { grid-template-columns: 1fr; text-align: center; }
  .adaptive-choice > span { transform: rotate(90deg); height: 22px; }
}

@media (max-width: 840px) {
  :root { --header-height: 68px; }
  .desktop-nav { display: none; }
  .mobile-menu-button { display: grid; }
  .brand-copy small { display: none; }
  .bit-layout { grid-template-columns: 1fr 1fr 1.4fr; }
  .field { min-height: 105px; }
  .hex-annotation { display: none; }
  .anatomy-notes, .poc-details-grid, .code-and-limits, .interpretation-columns { grid-template-columns: 1fr; }
  .lab-grid { grid-template-columns: 1fr; }
  .pipeline-grid { grid-template-columns: 1fr; }
  .pipeline-divider { flex-direction: row; padding: 4px 0; }
  .pipeline-divider small { writing-mode: horizontal-tb; }
  .decoder-split { grid-template-columns: 1fr 1fr; }
  .split-source { grid-column: 1 / -1; }
  .split-path { grid-template-columns: 1fr; gap: 8px; }
  .path-line { width: 1px; height: 24px; justify-self: center; background: linear-gradient(var(--line), var(--accent)); }
  .path-line::after { right: -3px; top: auto; bottom: 0; transform: rotate(135deg); }
  .downloads { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .section-shell, .header-inner, .mobile-nav { width: min(calc(100% - 24px), var(--max-width)); }
  .header-inner { gap: 10px; }
  .brand-mark { width: 34px; height: 34px; }
  .brand-copy strong { font-size: 0.86rem; }
  .language-switch button { padding: 5px 7px; }
  .hero { padding-top: 54px; padding-bottom: 68px; min-height: auto; }
  .hero h1 { font-size: clamp(2.45rem, 12vw, 4rem); }
  .hero-lead { font-size: 1rem; }
  .hero-facts { gap: 12px; }
  .hero-facts li { width: calc(50% - 8px); border-right: 0; padding: 10px 0; border-top: 1px solid var(--line); }
  .hero-facts li:last-child { width: 100%; }
  .terminal-card { padding-inline: 14px; border-radius: 20px; }
  .terminal-topbar { margin-inline: -14px; padding-inline: 14px; }
  .block-stream { grid-template-columns: 1fr 0.46fr 1fr 0.46fr; }
  .block-stream .stored, .block-stream .stored + .npncb { display: none; }
  .stream-block { height: 78px; }
  .terminal-grid { grid-template-columns: 1fr; }
  .floating-note { display: none; }
  .research-notice { grid-template-columns: 1fr; margin-bottom: 82px; padding: 22px; }
  .content-section { padding-bottom: 88px; }
  .section-heading { margin-bottom: 30px; }
  .section-heading h2 { font-size: clamp(1.85rem, 9vw, 2.7rem); }
  .concept-grid { grid-template-columns: 1fr; }
  .concept-card:last-child { grid-column: auto; }
  .concept-card { min-height: auto; }
  .card-icon { margin-bottom: 30px; }
  .block-types-panel, .anatomy-figure, .interactive-lab, .adaptive-diagram, .signal-board, .interpretation-panel { padding: 20px; border-radius: 18px; }
  .panel-heading, .lab-heading, .signal-heading { align-items: start; flex-direction: column; }
  .type-row { grid-template-columns: 0.55fr 1.45fr; padding-block: 8px; }
  .type-row > * { padding: 7px 10px; }
  .type-row > *:nth-child(3), .type-row > *:nth-child(4) { grid-column: 2; }
  .type-head > *:nth-child(3), .type-head > *:nth-child(4) { display: none; }
  .bit-layout { grid-template-columns: 1fr 1fr; }
  .field-dba { grid-column: 1 / -1; }
  .field-empty { grid-column: 1 / -1; }
  .anatomy-notes { grid-template-columns: 1fr; }
  .fact-panel { padding-left: 24px; padding-top: 72px; }
  .bit-cells { gap: 2px; }
  .bit-cell { min-height: 34px; font-size: 0.76rem; }
  .lab-metrics { grid-template-columns: 1fr; }
  .decoder-split { grid-template-columns: 1fr; padding: 20px; }
  .split-source { grid-column: auto; }
  .adaptive-candidates { grid-template-columns: 1fr; }
  .adaptive-input { align-items: start; flex-direction: column; }
  .data-wave { width: 100%; }
  .project-card, .pipeline-card { padding: 21px; border-radius: 18px; }
  .pipeline-steps li { grid-template-columns: 50px 1fr; }
  .project-command { align-items: start; flex-direction: column; }
  .project-command code { width: 100%; }
  .code-panel-head { align-items: start; }
  .code-panel pre { padding: 20px; font-size: 0.8rem; }
  .downloads { padding: 22px; border-radius: 18px; }
  .download-item { grid-template-columns: auto 1fr; }
  .download-item > code { display: none; }
  .signal-row { grid-template-columns: 1fr; gap: 9px; padding: 14px 0; }
  .signal-row > strong { text-align: left; }
  .defense-grid { grid-template-columns: 1fr; }
  .defense-card { min-height: auto; }
  .defense-card h3 { margin-top: 26px; }
  .reference-list li { grid-template-columns: 1fr; gap: 5px; }
  .closing { padding: 30px 24px; align-items: start; flex-direction: column; border-radius: 20px; }
  .footer-inner { grid-template-columns: 1fr; padding-block: 35px; }
  .footer-links { flex-wrap: wrap; }
  .footer-meta { grid-column: auto; }
}

/* Prevent min-content widths in bit-oriented diagrams from widening the page. */
html { overflow-x: clip; }
.hero > *,
.concept-grid > *,
.lab-grid > *,
.pipeline-grid > *,
.poc-details-grid > *,
.code-and-limits > *,
.downloads > *,
.defense-grid > *,
.interpretation-columns > * { min-width: 0; }
.hero-copy,
.hero-visual,
.terminal-card,
.project-card,
.code-panel,
.limits-panel { min-width: 0; max-width: 100%; }
.project-card, .code-panel { overflow: hidden; }
.hero h1, .hero-lead { overflow-wrap: anywhere; }

@media (max-width: 640px) {
  .hero-copy, .hero-visual { width: 100%; }
  .eyebrow-row, .hero-actions, .hero-facts { max-width: 100%; }
}


/* Integrated edition: safe.zipdeflate.com-inspired opening chapters + DBA Lab content. */
.integrated-nav { gap: 20px; }
.integrated-nav a { font-size: 0.94rem; white-space: nowrap; }
.integrated-hero { grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.98fr); }
.paper-spotlight {
  position: relative;
  padding: 28px;
  border: 1px solid color-mix(in srgb, var(--accent-2) 30%, var(--line));
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--accent-2) 8%, transparent), transparent 42%),
    var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.paper-spotlight::after {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  right: -110px;
  top: -130px;
  border-radius: 50%;
  background: var(--accent-2);
  filter: blur(90px);
  opacity: .12;
  pointer-events: none;
}
.paper-topline { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 16px; color: var(--accent); font: 800 0.8rem var(--font-mono); letter-spacing: .12em; }
.paper-year { color: var(--text-faint); }
.paper-spotlight h2 { position: relative; z-index: 1; margin: 19px 0 22px; font-size: clamp(1.35rem, 2.5vw, 2.15rem); line-height: 1.25; letter-spacing: -.03em; }
.paper-meta { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.paper-meta > div { min-width: 0; padding: 12px 13px; border: 1px solid var(--line); border-radius: 11px; background: color-mix(in srgb, var(--bg-soft) 82%, transparent); display: grid; gap: 3px; }
.paper-meta span { color: var(--text-faint); font-size: 0.8rem; }
.paper-meta b { overflow-wrap: anywhere; font: 750 0.86rem/1.45 var(--font-mono); }
.paper-keywords { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0 20px; }
.paper-keywords span { padding: 5px 8px; border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--line)); border-radius: 999px; color: var(--text-soft); background: color-mix(in srgb, var(--accent) 5%, transparent); font: 650 0.76rem var(--font-mono); }
.paper-stream { position: relative; z-index: 1; display: grid; grid-template-columns: 1.55fr .52fr 1.25fr .52fr 1.25fr; gap: 6px; }
.paper-block { min-width: 0; min-height: 70px; padding: 10px 7px; display: grid; place-content: center; text-align: center; border: 1px solid var(--line); border-radius: 10px; background: var(--bg-soft); }
.paper-block b { font: 800 0.8rem var(--font-mono); }
.paper-block small { color: var(--text-faint); font: 0.76rem var(--font-mono); }
.paper-block.dyn { border-color: color-mix(in srgb, var(--accent-2) 38%, var(--line)); }
.paper-block.fix { border-color: color-mix(in srgb, var(--accent) 36%, var(--line)); }
.paper-block.sto { border-color: color-mix(in srgb, var(--accent-3) 38%, var(--line)); }
.paper-block.hidden { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 60%, var(--line)); background: color-mix(in srgb, var(--accent) 13%, var(--bg-soft)); }
.paper-outcomes { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 9px; }
.paper-outcomes > div { padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: color-mix(in srgb, var(--panel-solid) 75%, transparent); display: grid; gap: 2px; }
.paper-outcomes span { color: var(--text-faint); font-size: 0.8rem; }
.paper-outcomes b { font-size: 0.86rem; }
.paper-outcomes > div:first-child b { color: var(--safe); }
.paper-outcomes > div:last-child b { color: var(--accent-3); }

.overview-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
.overview-card { position: relative; min-height: 260px; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel); overflow: hidden; display: flex; flex-direction: column; }
.overview-card::after { content: ""; position: absolute; width: 120px; height: 120px; right: -55px; bottom: -65px; border-radius: 50%; background: var(--accent); filter: blur(54px); opacity: .09; }
.overview-index { color: var(--accent); font: 800 0.8rem var(--font-mono); letter-spacing: .1em; }
.overview-card h3 { margin: 52px 0 10px; font-size: 1.16rem; }
.overview-card p { margin: 0 0 20px; color: var(--text-soft); font-size: 0.94rem; }
.overview-card code { margin-top: auto; color: var(--text-faint); font-size: 0.8rem; }

.why-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(420px, .92fr); gap: 24px; align-items: stretch; }
.why-copy { padding: 6px 4px 0; }
.why-copy > p { margin: 0 0 18px; color: var(--text-soft); font-size: 1rem; line-height: 1.85; }
.claim-card { margin-top: 26px; padding: 24px; border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--line)); border-radius: var(--radius-lg); background: color-mix(in srgb, var(--accent) 7%, var(--panel)); }
.claim-label { display: inline-flex; margin-bottom: 10px; color: var(--accent); font: 850 0.8rem var(--font-mono); letter-spacing: .1em; }
.claim-card p { margin: 0; color: var(--text); font-weight: 650; font-size: 1rem; }
.integrity-gap { padding: 27px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); display: grid; align-content: center; }
.gap-source { padding: 16px; border: 1px solid color-mix(in srgb, var(--accent-2) 38%, var(--line)); border-radius: 12px; background: color-mix(in srgb, var(--accent-2) 8%, var(--bg-soft)); display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.gap-source span { color: var(--accent-2); font: 800 0.8rem var(--font-mono); letter-spacing: .09em; }
.gap-source b { font: 800 0.86rem var(--font-mono); }
.gap-fork { height: 44px; display: grid; grid-template-columns: 1fr 1px 1fr; align-items: end; padding-inline: 16%; }
.gap-fork > span { height: 22px; border-bottom: 1px solid var(--line-strong); }
.gap-fork > span:first-child { border-right: 1px solid var(--line-strong); }
.gap-fork > span:last-child { border-left: 1px solid var(--line-strong); }
.gap-fork i { height: 44px; background: var(--line-strong); }
.gap-lanes { display: grid; gap: 9px; }
.gap-lane { display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 12px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-soft); }
.gap-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; font: 900 1rem var(--font-mono); }
.content-lane .gap-icon { color: var(--safe); background: color-mix(in srgb, var(--safe) 10%, transparent); }
.stream-lane .gap-icon { color: var(--accent-3); background: color-mix(in srgb, var(--accent-3) 10%, transparent); }
.gap-lane div { display: grid; gap: 2px; }
.gap-lane b { font-size: 0.86rem; }
.gap-lane small { color: var(--text-faint); font: 0.76rem var(--font-mono); }
.gap-lane strong { font: 800 0.76rem var(--font-mono); }
.content-lane strong { color: var(--safe); }
.stream-lane strong { color: var(--accent-3); }
.integrity-gap > p { margin: 15px 4px 0; color: var(--text-faint); font-size: 0.86rem; }

.core-structure { margin-top: 24px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); }
.core-structure-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 20px; }
.core-structure-head h3 { margin: 6px 0 0; font-size: 1.35rem; }
.core-structure-head > span { max-width: 390px; color: var(--text-faint); text-align: right; font-size: 0.86rem; }
.structure-row { display: grid; grid-template-columns: 105px 1fr 230px; gap: 14px; align-items: center; padding: 14px 0; border-top: 1px solid var(--line); }
.structure-row > b { font: 800 0.86rem var(--font-mono); }
.structure-row > small { color: var(--text-faint); font-size: 0.8rem; }
.structure-strip { min-width: 0; display: grid; grid-template-columns: 1.2fr .72fr .7fr .78fr 1.65fr; overflow: hidden; border-radius: 10px; border: 1px solid var(--line); }
.structure-strip span { min-width: 0; min-height: 48px; padding: 8px; display: grid; place-items: center; text-align: center; border-right: 1px solid var(--line); font: 700 0.76rem var(--font-mono); overflow-wrap: anywhere; }
.structure-strip span:last-child { border-right: 0; }
.s-prefix { background: color-mix(in srgb, var(--accent-2) 15%, var(--bg-soft)); color: var(--accent-2); }
.s-dba { background: color-mix(in srgb, var(--accent) 18%, var(--bg-soft)); color: var(--accent); }
.s-len, .s-nlen { background: color-mix(in srgb, var(--accent-3) 10%, var(--bg-soft)); }
.s-data { background: color-mix(in srgb, var(--safe) 9%, var(--bg-soft)); color: var(--safe); }
.s-empty { background: color-mix(in srgb, var(--danger) 8%, var(--bg-soft)); color: var(--text-faint); }
.npncb-row { border-bottom: 1px solid var(--line); }

@media (max-width: 1160px) {
  .integrated-nav { gap: 13px; }
  .integrated-nav a { font-size: 0.86rem; }
  .overview-grid { grid-template-columns: 1fr 1fr; }
  .overview-card { min-height: 230px; }
  .why-layout { grid-template-columns: 1fr; }
  .integrity-gap { max-width: 780px; width: 100%; }
  .structure-row { grid-template-columns: 90px 1fr; }
  .structure-row > small { grid-column: 2; }
}
@media (max-width: 840px) {
  .paper-spotlight { max-width: 720px; margin-inline: auto; }
  .core-structure-head { align-items: start; flex-direction: column; }
  .core-structure-head > span { text-align: left; }
}
@media (max-width: 640px) {
  .paper-spotlight { padding: 21px; border-radius: 20px; }
  .paper-meta, .paper-outcomes { grid-template-columns: 1fr; }
  .paper-stream { grid-template-columns: 1.35fr .5fr 1.15fr .5fr; }
  .paper-stream .sto { display: none; }
  .overview-grid { grid-template-columns: 1fr; }
  .overview-card { min-height: auto; }
  .overview-card h3 { margin-top: 34px; }
  .integrity-gap { padding: 20px; border-radius: 18px; }
  .gap-source { align-items: start; flex-direction: column; gap: 3px; }
  .gap-lane { grid-template-columns: 38px 1fr; }
  .gap-lane > strong { grid-column: 2; }
  .core-structure { padding: 20px; border-radius: 18px; }
  .structure-row { grid-template-columns: 1fr; }
  .structure-row > small { grid-column: auto; }
  .structure-strip { grid-template-columns: 1fr 1fr; }
  .structure-strip span { min-height: 43px; }
  .structure-strip .s-data, .structure-strip .s-empty { grid-column: 1 / -1; }
}

.overview-grid > *, .why-layout > *, .structure-row > * { min-width: 0; }

/* Keep the integrated hero single-column at tablet and mobile widths. */
@media (max-width: 1060px) {
  .integrated-hero { grid-template-columns: minmax(0, 1fr); }
}

/* --------------------------------------------------------------------------
   Readability pass
   Larger text, stronger contrast, and an earlier mobile-navigation breakpoint.
   The compact diagrams retain their hierarchy while no meaningful label is
   intentionally rendered below the comfortable caption range.
   -------------------------------------------------------------------------- */
:root {
  --text-soft: #c2cfe1;
  --text-faint: #94a6bf;
}

html[data-theme="light"] {
  --text-soft: #40556f;
  --text-faint: #60738b;
}

html {
  font-size: 17px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  line-height: 1.72;
}

p,
li,
figcaption,
small,
label {
  line-height: 1.68;
}

.hero-lead,
.section-heading p,
.why-copy > p,
.closing p {
  text-wrap: pretty;
}

/* More breathing room for labels that grew during the readability pass. */
.paper-meta > div,
.paper-outcomes > div,
.terminal-grid > div,
.lab-metrics > div,
.download-item,
.gap-lane {
  row-gap: 5px;
}

.paper-block,
.stream-block {
  min-height: 82px;
}

.structure-strip span {
  min-height: 56px;
  line-height: 1.35;
}

.bit-cell {
  line-height: 1;
}

/* The larger desktop labels need a little more room; switch to the mobile
   navigation before they become cramped. */
@media (max-width: 1120px) {
  .desktop-nav {
    display: none;
  }

  .mobile-menu-button {
    display: grid;
  }

  .brand-copy small {
    display: none;
  }
}

@media (max-width: 640px) {
  html {
    font-size: 16.5px;
  }

  .section-shell,
  .header-inner,
  .mobile-nav {
    width: min(calc(100% - 30px), var(--max-width));
  }

  .paper-block,
  .stream-block {
    min-height: 76px;
  }

  .structure-strip span {
    min-height: 52px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    gap: 10px;
  }

  .brand {
    gap: 8px;
  }

  .brand-copy strong {
    display: none;
  }

  .brand-copy::after {
    content: "NPNCB LAB";
    color: var(--text);
    font-size: 0.86rem;
    font-weight: 850;
    letter-spacing: 0.025em;
    white-space: nowrap;
  }

  .header-controls {
    gap: 6px;
  }

  .language-switch button {
    padding-inline: 8px;
  }

  .overview-card code {
    white-space: normal;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 350px) {
  .brand-copy {
    display: none;
  }

  .header-controls {
    gap: 4px;
  }
}