/* NOESIS · NOESISReader User Guide
   Theme: synthesis of NOESIS "Neon Dark" (magenta interaction, signal cyan) and the
   NOESISReader analysis palette (cyan accent, provenance colours). */

:root {
  --bg: #08090e;
  --bg-2: #0b0d13;
  --panel: #11141c;
  --panel-2: #161a24;
  --panel-3: #1c2130;
  --line: #252b3a;
  --line-soft: rgba(255, 255, 255, 0.06);
  --text: #e6e9f0;
  --text-2: #a7aec0;
  --muted: #6b7089;

  --magenta: #ff007c;
  --signal: #64d2ff;
  --cyan: #4fc3f7;
  --blue: #6e8bff;
  --violet: #bf5af2;
  --info: #0a84ff;
  --ok: #32d74b;
  --warn: #ffd60a;
  --err: #ff453a;

  --measured: #81c784;
  --derived: #4fc3f7;
  --inferred: #ffb74d;
  --abstract: #ce93d8;

  --accent: var(--magenta);
  --accent-2: var(--signal);
  --accent-rgb: 255, 0, 124;
  --grad: linear-gradient(100deg, var(--magenta) 0%, #a35bff 48%, var(--signal) 100%);

  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --display: "Inter Tight", "Inter", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", "Consolas", ui-monospace, monospace;

  --radius: 14px;
  --radius-sm: 9px;
  --topbar: 64px;
  --sidebar: 288px;
  --toc: 232px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
  color-scheme: dark;
}
body[data-section="noesis"] {
  --accent: var(--magenta);
  --accent-2: var(--signal);
  --accent-rgb: 255, 0, 124;
}
body[data-section="reader"] {
  --accent: var(--cyan);
  --accent-2: var(--blue);
  --accent-rgb: 79, 195, 247;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar) + 24px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 15.5px/1.7 var(--font);
  font-feature-settings: "cv11", "ss01", "ss03";
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}
::selection { background: rgba(var(--accent-rgb), 0.35); color: #fff; }
a { color: var(--accent-2); text-decoration: none; transition: color 0.2s; }
a:hover { color: #fff; }
img { max-width: 100%; display: block; }
code, kbd, pre { font-family: var(--mono); }

/* ------------------------------------------------------------------ backdrop */
.backdrop { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.backdrop::before {
  content: ""; position: absolute; inset: -20%;
  background:
    radial-gradient(40% 35% at 12% 8%, rgba(255, 0, 124, 0.13), transparent 70%),
    radial-gradient(38% 40% at 92% 85%, rgba(79, 195, 247, 0.12), transparent 70%),
    radial-gradient(30% 30% at 70% 15%, rgba(110, 139, 255, 0.07), transparent 70%);
  animation: drift 28s var(--ease-io) infinite alternate;
}
.backdrop::after {
  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: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 100%);
}
@keyframes drift { from { transform: translate3d(0, 0, 0) scale(1); } to { transform: translate3d(-3%, 2%, 0) scale(1.06); } }

/* ------------------------------------------------------------------ top bar */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--topbar); z-index: 50;
  display: flex; align-items: center; gap: 18px; padding: 0 22px;
  background: rgba(8, 9, 14, 0.72);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--line-soft);
}
.topbar::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent) 30%, var(--accent-2) 70%, transparent);
  opacity: 0.55; background-size: 200% 100%; animation: sweep 9s linear infinite;
}
@keyframes sweep { from { background-position: 100% 0; } to { background-position: -100% 0; } }
.brand { display: flex; align-items: center; gap: 11px; color: var(--text); flex-shrink: 0; }
.brand img { width: 34px; height: 34px; border-radius: 9px; box-shadow: 0 0 0 1px var(--line), 0 4px 18px rgba(var(--accent-rgb), 0.25); transition: transform 0.5s var(--ease); }
.brand:hover img { transform: rotate(-6deg) scale(1.06); }
.brand .wordmark { display: flex; flex-direction: column; line-height: 1.05; }
.brand .wordmark b { font: 600 15px/1.1 var(--display); letter-spacing: 0.28em; }
.brand .wordmark span { font: 500 10px/1.3 var(--mono); color: var(--muted); letter-spacing: 0.16em; text-transform: uppercase; }

.section-tabs { position: relative; display: flex; gap: 2px; padding: 4px; border-radius: 12px; background: rgba(255, 255, 255, 0.03); border: 1px solid var(--line-soft); }
.section-tabs a {
  position: relative; z-index: 1; padding: 6px 14px; border-radius: 9px;
  font: 500 13px/1.4 var(--font); color: var(--text-2); letter-spacing: 0.01em; white-space: nowrap;
  transition: color 0.3s;
}
.section-tabs a:hover { color: #fff; }
.section-tabs a.on { color: #fff; }
.section-tabs .ind {
  position: absolute; z-index: 0; top: 4px; bottom: 4px; border-radius: 9px;
  background: linear-gradient(120deg, rgba(var(--accent-rgb), 0.28), rgba(var(--accent-rgb), 0.1));
  box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), 0.45), 0 0 22px rgba(var(--accent-rgb), 0.18);
  transition: left 0.5s var(--ease), width 0.5s var(--ease), opacity 0.3s;
}
.spacer { flex: 1; }
.search-trigger {
  display: flex; align-items: center; gap: 10px; width: min(340px, 34vw); height: 38px; padding: 0 12px;
  border-radius: 11px; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.025);
  color: var(--muted); font: 400 13.5px var(--font); cursor: text;
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
}
.search-trigger:hover { border-color: rgba(var(--accent-rgb), 0.55); background: rgba(255, 255, 255, 0.04); box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.08); }
.search-trigger svg { flex-shrink: 0; opacity: 0.8; }
.search-trigger .label { flex: 1; text-align: left; }
.keys { display: flex; gap: 4px; }
kbd, .keys span {
  display: inline-flex; align-items: center; justify-content: center; min-width: 22px; height: 21px; padding: 0 6px;
  border-radius: 6px; border: 1px solid var(--line); border-bottom-width: 2px;
  background: var(--panel-2); color: var(--text-2); font: 500 11px/1 var(--mono);
}
.menu-btn { display: none; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line); background: transparent; color: var(--text); cursor: pointer; }

/* ------------------------------------------------------------------ shell */
.shell {
  display: grid; grid-template-columns: var(--sidebar) minmax(0, 1fr) var(--toc);
  max-width: 1560px; margin: 0 auto; padding-top: var(--topbar); min-height: 100vh;
}
.shell.no-toc { grid-template-columns: var(--sidebar) minmax(0, 1fr); }
.shell.wide { grid-template-columns: minmax(0, 1fr); }

/* sidebar */
.sidebar {
  position: sticky; top: var(--topbar); height: calc(100vh - var(--topbar)); overflow-y: auto;
  padding: 26px 16px 40px 22px; border-right: 1px solid var(--line-soft);
  scrollbar-width: thin; scrollbar-color: var(--line) transparent;
}
.side-head { display: flex; align-items: center; gap: 12px; padding: 4px 8px 18px; }
.side-head img { height: 22px; width: auto; max-width: 100%; opacity: 0.95; }
.nav-group { margin-bottom: 6px; }
.nav-group > button {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 9px 10px; border: 0; background: none; cursor: pointer; border-radius: 8px;
  color: var(--muted); font: 600 10.5px/1.2 var(--mono); letter-spacing: 0.18em; text-transform: uppercase;
  transition: color 0.25s, background 0.25s;
}
.nav-group > button:hover { color: var(--text); background: rgba(255, 255, 255, 0.025); }
.nav-group > button svg { transition: transform 0.45s var(--ease); }
.nav-group.closed > button svg { transform: rotate(-90deg); }
.nav-group ul { list-style: none; margin: 0; padding: 0 0 6px; overflow: hidden; transition: height 0.45s var(--ease), opacity 0.35s; }
.nav-group.closed ul { opacity: 0.0; }
.nav-group li a {
  position: relative; display: block; padding: 7px 12px 7px 16px; margin: 1px 0; border-radius: 9px;
  color: var(--text-2); font-size: 14px; line-height: 1.35;
  transition: color 0.25s, background 0.25s, transform 0.35s var(--ease);
}
.nav-group li a::before {
  content: ""; position: absolute; left: 5px; top: 50%; width: 3px; height: 0; border-radius: 3px;
  background: var(--grad); transform: translateY(-50%); transition: height 0.4s var(--ease);
}
.nav-group li a:hover { color: #fff; background: rgba(255, 255, 255, 0.035); transform: translateX(2px); }
.nav-group li a.on { color: #fff; background: linear-gradient(90deg, rgba(var(--accent-rgb), 0.16), rgba(var(--accent-rgb), 0.02)); }
.nav-group li a.on::before { height: 62%; box-shadow: 0 0 12px rgba(var(--accent-rgb), 0.8); }

/* main */
.main { min-width: 0; padding: 40px clamp(20px, 4vw, 64px) 80px; }
.page { max-width: 880px; margin: 0 auto; }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 14px; font: 500 11.5px/1.4 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent-2); }
.crumbs .sep { opacity: 0.5; }
.crumbs .tag { color: var(--accent); }
h1, h2, h3, h4 { font-family: var(--display); color: #fff; letter-spacing: -0.015em; }
h1 { margin: 0 0 14px; font-size: clamp(32px, 4.4vw, 46px); line-height: 1.08; font-weight: 650; }
h1 .grad, .grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
body[data-section="reader"] h1 .grad { background: linear-gradient(100deg, #fff 0%, var(--cyan) 55%, var(--blue) 100%); -webkit-background-clip: text; background-clip: text; }
body[data-section="noesis"] h1 .grad { background: linear-gradient(100deg, #fff 0%, #ff4fa6 50%, var(--magenta) 100%); -webkit-background-clip: text; background-clip: text; }
.lead { margin: 0 0 30px; font-size: 18px; line-height: 1.6; color: var(--text-2); max-width: 70ch; }
.page-hero { position: relative; margin: -6px 0 34px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line-soft); }
.page-hero img { width: 100%; height: auto; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: -14px 0 32px; }
.chip { display: inline-flex; align-items: center; gap: 7px; padding: 4px 11px; border-radius: 999px; font: 500 12px/1.5 var(--mono); color: var(--text-2); border: 1px solid var(--line); background: rgba(255, 255, 255, 0.02); }
.chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }

article h2 {
  position: relative; margin: 58px 0 16px; padding-top: 22px; font-size: 26px; line-height: 1.2; font-weight: 640;
  border-top: 1px solid var(--line-soft);
}
article h2::before {
  content: ""; position: absolute; top: -1px; left: 0; width: 64px; height: 1px; background: var(--grad);
}
article h3 { margin: 34px 0 10px; font-size: 19px; line-height: 1.3; font-weight: 620; }
article h4 { margin: 24px 0 8px; font-size: 15.5px; font-weight: 620; color: var(--text); }
article > h2:first-child { margin-top: 0; border-top: 0; padding-top: 0; }
article > h2:first-child::before { display: none; }
.anchor { margin-left: 10px; opacity: 0; color: var(--muted); font-weight: 400; transition: opacity 0.2s; }
h2:hover .anchor, h3:hover .anchor { opacity: 1; }
:target { animation: flash 1.8s var(--ease); }
@keyframes flash { 0% { text-shadow: 0 0 0 transparent; } 20% { text-shadow: 0 0 24px rgba(var(--accent-rgb), 0.9); } 100% { text-shadow: 0 0 0 transparent; } }
article p { margin: 0 0 16px; }
article ul, article ol { margin: 0 0 18px; padding-left: 22px; }
article li { margin: 5px 0; }
article li::marker { color: var(--accent); }
article strong { color: #fff; font-weight: 600; }
article code {
  padding: 1px 7px; border-radius: 6px; font-size: 0.86em;
  background: rgba(var(--accent-rgb), 0.08); border: 1px solid rgba(var(--accent-rgb), 0.18); color: #f1f3f9;
}
.ui { font-weight: 600; color: #fff; white-space: nowrap; }
.ui::before { content: "‹ "; color: var(--accent); opacity: 0.7; font-weight: 400; }
.ui::after { content: " ›"; color: var(--accent); opacity: 0.7; font-weight: 400; }
.path { font-family: var(--mono); font-size: 0.88em; color: var(--accent-2); }
hr { border: 0; height: 1px; background: var(--line-soft); margin: 36px 0; }

/* code blocks */
pre {
  position: relative; margin: 0 0 20px; padding: 18px 20px; overflow-x: auto; border-radius: var(--radius-sm);
  background: linear-gradient(180deg, #0e1119, #0b0d14); border: 1px solid var(--line);
  font-size: 13.2px; line-height: 1.65; color: #dfe5f2; box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}
pre code { padding: 0; background: none; border: 0; font-size: inherit; color: inherit; }
pre .c { color: var(--muted); }
.copy {
  position: absolute; top: 8px; right: 8px; padding: 4px 10px; border-radius: 7px; border: 1px solid var(--line);
  background: var(--panel-2); color: var(--text-2); font: 500 11px var(--mono); cursor: pointer; opacity: 0;
  transition: opacity 0.25s, color 0.25s, border-color 0.25s;
}
pre:hover .copy { opacity: 1; }
.copy:hover { color: #fff; border-color: var(--accent); }
.copy.done { color: var(--ok); border-color: var(--ok); opacity: 1; }

/* tables */
.table-wrap { margin: 0 0 22px; overflow-x: auto; border-radius: var(--radius-sm); border: 1px solid var(--line); background: rgba(17, 20, 28, 0.6); }
table { width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.55; }
th { position: sticky; top: 0; text-align: left; padding: 11px 14px; background: var(--panel-2); color: var(--text-2); font: 600 11px/1.4 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 10px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
tbody tr { transition: background 0.2s; }
tbody tr:hover { background: rgba(var(--accent-rgb), 0.05); }
td:first-child { color: #fff; font-weight: 500; }
td code { white-space: nowrap; }

/* steps */
ol.steps { list-style: none; counter-reset: s; padding: 0; margin: 4px 0 24px; position: relative; }
ol.steps > li {
  position: relative; counter-increment: s; padding: 2px 0 18px 54px; margin: 0;
}
ol.steps > li::before {
  content: counter(s); position: absolute; left: 0; top: 0; width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; font: 600 13px var(--mono); color: #fff;
  background: radial-gradient(circle at 30% 30%, rgba(var(--accent-rgb), 0.55), rgba(var(--accent-rgb), 0.12));
  box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), 0.7), 0 0 18px rgba(var(--accent-rgb), 0.25);
}
ol.steps > li::after {
  content: ""; position: absolute; left: 16.5px; top: 38px; bottom: 2px; width: 1px;
  background: linear-gradient(rgba(var(--accent-rgb), 0.5), rgba(var(--accent-rgb), 0.05));
}
ol.steps > li:last-child::after { display: none; }
ol.steps > li > :first-child { margin-top: 5px; }
ol.steps > li p:last-child { margin-bottom: 0; }

/* callouts */
.callout {
  position: relative; display: flex; gap: 14px; margin: 0 0 22px; padding: 15px 18px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(var(--c), 0.10), rgba(var(--c), 0.03));
  border: 1px solid rgba(var(--c), 0.28); --c: 100, 210, 255;
}
.callout::before { content: ""; position: absolute; left: 0; top: 12px; bottom: 12px; width: 3px; border-radius: 3px; background: rgb(var(--c)); box-shadow: 0 0 12px rgb(var(--c)); }
.callout .ic { flex-shrink: 0; width: 22px; height: 22px; color: rgb(var(--c)); margin-top: 2px; }
.callout > div > :last-child { margin-bottom: 0; }
.callout b.t { display: block; margin-bottom: 2px; color: rgb(var(--c)); font: 600 11.5px/1.6 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; }
.callout.tip { --c: 50, 215, 75; }
.callout.note { --c: 100, 210, 255; }
.callout.warn { --c: 255, 214, 10; }
.callout.danger { --c: 255, 69, 58; }
.callout.key { --c: 255, 0, 124; }

/* figures */
figure.shot { margin: 8px 0 28px; }
figure.shot .frame {
  position: relative; border-radius: var(--radius); overflow: hidden; cursor: zoom-in;
  border: 1px solid var(--line); background: #05060a;
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.02);
  transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease), border-color 0.4s;
}
figure.shot .frame::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(115deg, transparent 40%, rgba(255, 255, 255, 0.07) 50%, transparent 60%);
  transform: translateX(-100%); transition: transform 1.1s var(--ease);
}
figure.shot .frame:hover { transform: translateY(-3px); border-color: rgba(var(--accent-rgb), 0.5); box-shadow: 0 40px 70px -30px rgba(0, 0, 0, 0.9), 0 0 40px -10px rgba(var(--accent-rgb), 0.35); }
figure.shot .frame:hover::after { transform: translateX(100%); }
figure.shot img { width: 100%; height: auto; }
figure.shot figcaption { margin-top: 10px; font-size: 13px; color: var(--muted); display: flex; gap: 10px; }
figure.shot figcaption::before { content: "FIG"; font: 600 10.5px/1.9 var(--mono); letter-spacing: 0.14em; color: var(--accent); }

/* accordions */
details.acc {
  margin: 0 0 10px; border-radius: var(--radius-sm); border: 1px solid var(--line);
  background: rgba(17, 20, 28, 0.55); transition: border-color 0.35s, background 0.35s;
}
details.acc[open] { border-color: rgba(var(--accent-rgb), 0.38); background: rgba(22, 26, 36, 0.7); }
details.acc > summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 12px; padding: 14px 18px;
  font: 600 15px/1.4 var(--display); color: #fff; border-radius: var(--radius-sm); user-select: none;
}
details.acc > summary::-webkit-details-marker { display: none; }
details.acc > summary:hover { background: rgba(255, 255, 255, 0.02); }
details.acc > summary .chev { margin-left: auto; width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; border: 1px solid var(--line); color: var(--text-2); transition: transform 0.5s var(--ease), color 0.3s, border-color 0.3s; }
details.acc[open] > summary .chev { transform: rotate(180deg); color: var(--accent); border-color: rgba(var(--accent-rgb), 0.5); }
details.acc > summary small { font: 500 12px var(--font); color: var(--muted); }
.acc-body { padding: 2px 20px 18px; overflow: hidden; }
.acc-body > :last-child { margin-bottom: 0; }

/* tabs */
.tabs { margin: 0 0 24px; }
.tab-list { position: relative; display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 18px; overflow-x: auto; }
.tab-list button {
  position: relative; padding: 10px 16px; border: 0; background: none; cursor: pointer; white-space: nowrap;
  font: 500 14px var(--font); color: var(--text-2); transition: color 0.25s;
}
.tab-list button:hover { color: #fff; }
.tab-list button.on { color: #fff; }
.tab-list .bar { position: absolute; bottom: -1px; height: 2px; background: var(--grad); box-shadow: 0 0 12px rgba(var(--accent-rgb), 0.7); transition: left 0.45s var(--ease), width 0.45s var(--ease); }
.tab-panel { display: none; animation: rise 0.5s var(--ease); }
.tab-panel.on { display: block; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin: 0 0 26px; }
.card {
  position: relative; display: block; padding: 18px 18px 16px; border-radius: var(--radius); color: var(--text);
  background: linear-gradient(160deg, rgba(28, 33, 48, 0.75), rgba(17, 20, 28, 0.75));
  border: 1px solid var(--line); overflow: hidden; isolation: isolate;
  transition: transform 0.5s var(--ease), border-color 0.4s, box-shadow 0.5s var(--ease);
}
.card::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity 0.5s;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgba(var(--accent-rgb), 0.16), transparent 45%);
}
.card:hover { transform: translateY(-3px); border-color: rgba(var(--accent-rgb), 0.45); box-shadow: 0 22px 40px -24px rgba(var(--accent-rgb), 0.55); color: var(--text); }
.card:hover::before { opacity: 1; }
.card h4 { margin: 0 0 6px; font-size: 15.5px; color: #fff; }
.card p { margin: 0; font-size: 13.5px; line-height: 1.55; color: var(--text-2); }
.card .go { position: absolute; right: 14px; top: 16px; color: var(--muted); transition: transform 0.4s var(--ease), color 0.3s; }
.card:hover .go { transform: translateX(3px); color: var(--accent); }
.card .k { display: inline-block; margin-bottom: 8px; font: 600 10.5px/1 var(--mono); letter-spacing: 0.16em; color: var(--accent); text-transform: uppercase; }

/* status + provenance badges */
.st, .pv { display: inline-block; padding: 1px 8px; border-radius: 6px; font: 600 11px/1.75 var(--mono); letter-spacing: 0.06em; white-space: nowrap; border: 1px solid currentColor; background: rgba(255, 255, 255, 0.02); }
.st.active { color: var(--ok); } .st.available { color: var(--signal); } .st.experimental { color: var(--warn); }
.st.denied { color: #ff9f6b; } .st.unavailable { color: var(--muted); } .st.unsupported { color: #8b90a6; } .st.simulated { color: var(--warn); }
.st.rec { color: var(--err); } .st.mon { color: var(--signal); } .st.paused { color: var(--warn); } .st.idle { color: var(--muted); }
.pv.m { color: var(--measured); } .pv.d { color: var(--derived); } .pv.i { color: var(--inferred); } .pv.a { color: var(--abstract); }

/* prev / next */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 64px; }
.pager a {
  display: block; padding: 16px 18px; border-radius: var(--radius); border: 1px solid var(--line);
  background: rgba(17, 20, 28, 0.55); transition: border-color 0.35s, transform 0.5s var(--ease), background 0.35s;
}
.pager a:hover { border-color: rgba(var(--accent-rgb), 0.5); transform: translateY(-2px); background: rgba(22, 26, 36, 0.8); }
.pager small { display: block; font: 600 10.5px/1.6 var(--mono); letter-spacing: 0.16em; color: var(--muted); text-transform: uppercase; }
.pager b { color: #fff; font-weight: 600; }
.pager .next { text-align: right; grid-column: 2; }

/* TOC */
.toc { position: sticky; top: var(--topbar); height: calc(100vh - var(--topbar)); overflow-y: auto; padding: 42px 22px 40px 6px; scrollbar-width: none; }
.toc h5 { margin: 0 0 12px; font: 600 10.5px/1 var(--mono); letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
.toc ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc li a { position: relative; display: block; padding: 5px 0 5px 14px; font-size: 13px; line-height: 1.4; color: var(--muted); transition: color 0.25s; }
.toc li.l3 a { padding-left: 26px; font-size: 12.5px; }
.toc li a:hover { color: var(--text); }
.toc li a.on { color: #fff; }
.toc li a::before { content: ""; position: absolute; left: -1px; top: 6px; bottom: 6px; width: 2px; border-radius: 2px; background: var(--grad); opacity: 0; transform: scaleY(0.3); transition: opacity 0.3s, transform 0.4s var(--ease); }
.toc li a.on::before { opacity: 1; transform: scaleY(1); box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.8); }
.toc .top { display: inline-flex; align-items: center; gap: 6px; margin-top: 20px; font: 500 12px var(--mono); color: var(--muted); }
.toc .top:hover { color: var(--accent); }

.footer { margin-top: 80px; padding-top: 24px; border-top: 1px solid var(--line-soft); display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; font: 500 12px var(--mono); color: var(--muted); }

/* ------------------------------------------------------------------ search modal */
.search-modal { position: fixed; inset: 0; z-index: 100; display: none; }
.search-modal.open { display: block; }
.search-modal .scrim { position: absolute; inset: 0; background: rgba(3, 4, 8, 0.66); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); opacity: 0; transition: opacity 0.3s; }
.search-modal.show .scrim { opacity: 1; }
.search-box {
  position: relative; margin: 11vh auto 0; width: min(720px, calc(100vw - 32px)); max-height: 72vh; display: flex; flex-direction: column;
  border-radius: 18px; overflow: hidden; background: rgba(14, 16, 24, 0.94); border: 1px solid var(--line);
  box-shadow: 0 50px 120px -30px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(255, 255, 255, 0.03), 0 0 80px -20px rgba(var(--accent-rgb), 0.35);
  transform: translateY(-14px) scale(0.98); opacity: 0; transition: transform 0.45s var(--ease), opacity 0.3s;
}
.search-modal.show .search-box { transform: none; opacity: 1; }
.search-input { display: flex; align-items: center; gap: 12px; padding: 0 18px; border-bottom: 1px solid var(--line); }
.search-input svg { color: var(--accent); flex-shrink: 0; }
.search-input input { flex: 1; height: 62px; border: 0; outline: 0; background: none; color: #fff; font: 400 18px var(--font); }
.search-input input::placeholder { color: var(--muted); }
.search-scope { display: flex; gap: 6px; padding: 10px 18px; border-bottom: 1px solid var(--line-soft); }
.search-scope button { padding: 4px 11px; border-radius: 999px; border: 1px solid var(--line); background: none; color: var(--text-2); font: 500 12px var(--font); cursor: pointer; transition: all 0.25s; }
.search-scope button.on { color: #fff; border-color: rgba(var(--accent-rgb), 0.6); background: rgba(var(--accent-rgb), 0.14); }
.results { overflow-y: auto; padding: 8px; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.result {
  display: block; padding: 11px 14px; border-radius: 11px; color: var(--text); border: 1px solid transparent;
  animation: rise 0.35s var(--ease) both;
}
.result .rt { display: flex; align-items: center; gap: 8px; font-weight: 600; color: #fff; font-size: 14.5px; }
.result .rp { font: 500 11px var(--mono); color: var(--muted); letter-spacing: 0.04em; }
.result .rs { margin-top: 3px; font-size: 13px; line-height: 1.5; color: var(--text-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.result mark { background: rgba(var(--accent-rgb), 0.28); color: #fff; border-radius: 2px; padding: 0; box-shadow: 0 0 0 1px rgba(var(--accent-rgb), 0.28); }
.search-input input::-webkit-search-cancel-button { -webkit-appearance: none; appearance: none; }
.result.on, .result:hover { background: rgba(var(--accent-rgb), 0.1); border-color: rgba(var(--accent-rgb), 0.35); color: var(--text); }
.sec-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.sec-dot.noesis { background: var(--magenta); box-shadow: 0 0 8px var(--magenta); }
.sec-dot.reader { background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
.sec-dot.home { background: var(--violet); box-shadow: 0 0 8px var(--violet); }
.search-empty { padding: 34px 20px; text-align: center; color: var(--muted); font-size: 14px; }
.search-foot { display: flex; gap: 18px; padding: 10px 18px; border-top: 1px solid var(--line-soft); font: 500 11.5px var(--mono); color: var(--muted); }
.search-foot span { display: inline-flex; align-items: center; gap: 6px; }

/* lightbox */
.lightbox { position: fixed; inset: 0; z-index: 120; display: none; align-items: center; justify-content: center; padding: 4vh 4vw; background: rgba(3, 4, 8, 0.86); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); cursor: zoom-out; opacity: 0; transition: opacity 0.35s; }
.lightbox.open { display: flex; }
.lightbox.show { opacity: 1; }
.lightbox img { max-width: 100%; max-height: 100%; border-radius: 12px; border: 1px solid var(--line); box-shadow: 0 40px 120px rgba(0, 0, 0, 0.9); transform: scale(0.96); transition: transform 0.5s var(--ease); }
.lightbox.show img { transform: none; }
.lightbox .cap { position: absolute; bottom: 2vh; left: 0; right: 0; text-align: center; color: var(--text-2); font-size: 13px; }

/* ------------------------------------------------------------------ home */
.home .main { padding-top: 34px; }
.home-wrap { max-width: 1240px; margin: 0 auto; }
.hero { position: relative; text-align: center; padding: 56px 0 30px; }
.hero .orb { position: relative; width: 132px; height: 132px; margin: 0 auto 26px; }
.hero .orb img { position: absolute; inset: 0; width: 100%; height: 100%; border-radius: 30px; box-shadow: 0 0 0 1px var(--line), 0 30px 80px -20px rgba(255, 0, 124, 0.45), 0 0 120px -20px rgba(100, 210, 255, 0.4); animation: float 7s var(--ease-io) infinite alternate; }
.hero .orb::before { content: ""; position: absolute; inset: -22px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.06); animation: pulse 4.5s var(--ease-io) infinite; }
.hero .orb::after { content: ""; position: absolute; inset: -46px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.035); animation: pulse 4.5s var(--ease-io) infinite 1.1s; }
@keyframes float { from { transform: translateY(0); } to { transform: translateY(-9px); } }
@keyframes pulse { 0% { transform: scale(0.92); opacity: 0; } 40% { opacity: 1; } 100% { transform: scale(1.12); opacity: 0; } }
.hero .eyebrow { font: 600 12px/1 var(--mono); letter-spacing: 0.32em; color: var(--muted); text-transform: uppercase; margin-bottom: 18px; }
.hero h1 { font-size: clamp(38px, 6vw, 68px); margin-bottom: 18px; }
.hero h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .search-big {
  display: flex; align-items: center; gap: 14px; width: min(640px, 100%); height: 58px; margin: 26px auto 0; padding: 0 18px;
  border-radius: 16px; border: 1px solid var(--line); background: rgba(17, 20, 28, 0.7); color: var(--muted); font-size: 16px; cursor: text;
  box-shadow: 0 20px 60px -30px rgba(0, 0, 0, 0.8); transition: border-color 0.35s, box-shadow 0.35s;
}
.hero .search-big:hover { border-color: rgba(255, 0, 124, 0.5); box-shadow: 0 0 0 5px rgba(255, 0, 124, 0.07), 0 20px 60px -30px rgba(0, 0, 0, 0.8); }
.hero .search-big .label { flex: 1; text-align: left; }
.portals { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin: 46px 0 26px; }
.portal {
  position: relative; display: flex; flex-direction: column; min-height: 380px; border-radius: 22px; overflow: hidden; isolation: isolate;
  border: 1px solid var(--line); color: var(--text);
  background: radial-gradient(120% 90% at 85% 10%, rgba(var(--pc), 0.16), transparent 55%), linear-gradient(160deg, #0d1018, #08090e 70%);
  transition: transform 0.7s var(--ease), border-color 0.5s, box-shadow 0.7s var(--ease);
}
.portal.noesis { --pc: 255, 0, 124; }
.portal.reader { --pc: 79, 195, 247; }
.portal .rings { position: absolute; z-index: -1; right: -120px; top: -150px; width: 560px; height: 560px; border-radius: 50%;
  background: repeating-radial-gradient(circle, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 46px);
  mask-image: radial-gradient(circle, #000 30%, transparent 70%); -webkit-mask-image: radial-gradient(circle, #000 30%, transparent 70%);
  transition: transform 1.4s var(--ease); }
.portal .emblem { position: absolute; z-index: -1; right: 28px; top: 26px; width: 230px; height: auto;
  filter: drop-shadow(0 0 40px rgba(var(--pc), 0.35)); animation: float 8s var(--ease-io) infinite alternate; transition: transform 1s var(--ease), filter 0.6s; }
.portal:hover { transform: translateY(-5px); color: var(--text); border-color: rgba(var(--pc), 0.6); box-shadow: 0 40px 90px -40px rgba(var(--pc), 0.6); }
.portal:hover .emblem { filter: drop-shadow(0 0 60px rgba(var(--pc), 0.6)); }
.portal:hover .rings { transform: scale(1.12) rotate(8deg); }
.portal .inner { margin-top: auto; padding: 30px; position: relative; }
.portal .inner .wordmark { height: 34px; width: auto; max-width: 100%; margin: 0 0 18px; }
.portal .inner p { margin: 0 0 18px; color: var(--text-2); max-width: 42ch; }
.portal .enter { display: inline-flex; align-items: center; gap: 10px; font: 600 13px var(--mono); letter-spacing: 0.12em; text-transform: uppercase; }
.portal.noesis .enter { color: var(--magenta); }
.portal.reader .enter { color: var(--cyan); }
.portal .enter svg { transition: transform 0.45s var(--ease); }
.portal:hover .enter svg { transform: translateX(6px); }
.quick { margin: 48px 0 0; }
.quick h2 { margin: 0 0 18px; font-size: 22px; }
.quick .cols { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.quick .col h3 { display: flex; align-items: center; gap: 10px; margin: 0 0 12px; font: 600 11.5px/1 var(--mono); letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
.quick .col a { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 16px; margin-bottom: 8px; border-radius: 12px; border: 1px solid var(--line); background: rgba(17, 20, 28, 0.55); color: var(--text); transition: all 0.35s var(--ease); }
.quick .col.noesis a:hover { border-color: rgba(255, 0, 124, 0.5); transform: translateX(4px); background: rgba(255, 0, 124, 0.06); }
.quick .col.reader a:hover { border-color: rgba(79, 195, 247, 0.5); transform: translateX(4px); background: rgba(79, 195, 247, 0.06); }
.quick .col a span { color: var(--muted); font-size: 13px; }

/* about */
.about-card {
  position: relative; margin: 10px 0 30px; padding: 40px; border-radius: 22px; overflow: hidden; isolation: isolate;
  border: 1px solid var(--line); background: linear-gradient(160deg, rgba(28, 33, 48, 0.7), rgba(10, 12, 18, 0.9));
}
.about-card::before { content: ""; position: absolute; inset: -1px; z-index: -1; border-radius: inherit; padding: 1px; background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0.6; }
.about-card .logo { width: 300px; max-width: 100%; margin-bottom: 26px; }
.about-card .acr { font: 500 18px/1.5 var(--display); color: var(--text-2); margin: 0 0 26px; }
.about-card .acr b { color: #fff; }
.about-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.about-grid a { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 13px; border: 1px solid var(--line); background: rgba(8, 9, 14, 0.55); color: var(--text); transition: all 0.4s var(--ease); }
.about-grid a:hover { border-color: rgba(255, 0, 124, 0.55); transform: translateY(-2px); box-shadow: 0 18px 36px -22px rgba(255, 0, 124, 0.6); color: #fff; }
.about-grid .ico { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--line); color: var(--signal); flex-shrink: 0; }
.about-grid small { display: block; font: 600 10px/1.4 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.about-grid span { font-size: 14px; word-break: break-all; }

/* ------------------------------------------------------------------ transitions */
.page, .hero, .portals, .quick, .about-card { animation: rise 0.75s var(--ease) both; }
.portals { animation-delay: 0.08s; }
.quick { animation-delay: 0.16s; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
body.leaving .main, body.leaving .toc { opacity: 0; transform: translateY(-8px); transition: opacity 0.22s ease, transform 0.22s ease; }

/* ------------------------------------------------------------------ responsive */
@media (max-width: 1260px) {
  .shell { grid-template-columns: var(--sidebar) minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 920px) {
  :root { --topbar: 58px; }
  .shell, .shell.no-toc { grid-template-columns: minmax(0, 1fr); }
  .menu-btn { display: grid; place-items: center; }
  .brand .wordmark span { display: none; }
  .section-tabs { display: none; }
  .search-trigger { width: 40px; padding: 0; justify-content: center; }
  .search-trigger .label, .search-trigger .keys { display: none; }
  .sidebar {
    position: fixed; z-index: 60; top: var(--topbar); left: 0; width: min(320px, 86vw); height: calc(100vh - var(--topbar));
    background: rgba(10, 12, 18, 0.97); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    transform: translateX(-102%); transition: transform 0.5s var(--ease); border-right: 1px solid var(--line);
  }
  body.drawer .sidebar { transform: none; box-shadow: 30px 0 80px rgba(0, 0, 0, 0.6); }
  .side-sections { display: flex !important; }
  .portals, .quick .cols { grid-template-columns: 1fr; }
  .portal { min-height: 340px; }
  .portal .emblem { width: 150px; right: 14px; top: 14px; }
  .hero h1 { font-size: 36px; }
  .main { padding: 28px 16px 60px; }
  .pager { grid-template-columns: 1fr; }
  .pager .next { grid-column: 1; }
}
.side-sections { display: none; gap: 6px; margin: 0 0 18px; flex-wrap: wrap; }
.side-sections a { padding: 6px 12px; border-radius: 9px; border: 1px solid var(--line); color: var(--text-2); font-size: 13px; }
.side-sections a.on { color: #fff; border-color: rgba(var(--accent-rgb), 0.6); background: rgba(var(--accent-rgb), 0.12); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}
@media print {
  .topbar, .sidebar, .toc, .pager, .backdrop { display: none !important; }
  .shell { display: block; padding: 0; }
  body { background: #fff; color: #000; }
}