:root {
  --bg: #ffffff;
  --bg2: #f5f7ff;
  --bg3: #eef0f8;
  --text: #2b2c4f;
  --text2: #6b7094;
  --text3: #8e8ea4;
  --border: #e4e4e4;
  --accent: #4353ff;
  --accent-light: #5167f6;
  --accent-bg: #eef0ff;
  --brand-dark: #160042;
  --brand-purple: #6667ab;
  --teal: #2a514c;
  --teal-bg: #e8f5f0;
  --amber: #e16337;
  --amber-bg: #fff3ed;
  --blue: #1355ff;
  --blue-bg: #eef2ff;
  --green: #2da46f;
  --green-bg: #e8f8f0;
  --red: #e16337;
  --red-bg: #fff0ec;
  --orange: #ff7c48;
  --shadow: rgba(22,0,66,0.08);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "Fira Code", "Cascadia Code", Consolas, monospace;
  --header-h: 64px;
  --radius: 12px;
}
[data-theme="dark"] {
  --bg: #0d0b1a;
  --bg2: #161330;
  --bg3: #1e1b3a;
  --text: #e8e6f4;
  --text2: #b0aec8;
  --text3: #8e8ea4;
  --border: #2e2b4f;
  --accent: #7b8aff;
  --accent-light: #9aa4ff;
  --accent-bg: #2a2660;
  --brand-dark: #0a0025;
  --brand-purple: #9697d6;
  --teal: #5dcaa5;
  --teal-bg: #0f2e28;
  --amber: #ff9a6c;
  --amber-bg: #3d2010;
  --blue: #7b9eff;
  --blue-bg: #1a2450;
  --green: #5dcaa5;
  --green-bg: #102e20;
  --red: #ff8a6e;
  --red-bg: #3d1a10;
  --orange: #ffa070;
  --shadow: rgba(0,0,0,0.35);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.7; transition: background .2s, color .2s; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
a { color: var(--accent); }
a:hover { color: var(--accent-light); }

/* TOPBAR */
#topbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--header-h);
  background: var(--brand-dark); border-bottom: none;
  display: flex; align-items: center; padding: 0 24px; gap: 16px; z-index: 1000;
  box-shadow: 0 2px 12px rgba(22,0,66,0.15);
}
#topbar .logo { display: flex; align-items: center; gap: 12px; white-space: nowrap; text-decoration: none; }
#topbar .logo img { height: 28px; width: auto; }
#topbar .logo .logo-divider { width: 1px; height: 28px; background: rgba(255,255,255,0.2); }
#topbar .logo .logo-text { font-size: 13px; font-weight: 500; color: rgba(255,255,255,0.85); letter-spacing: -0.01em; }
#topbar .logo .logo-text strong { font-weight: 700; color: #fff; }
#search-box {
  flex: 1; max-width: 480px; position: relative;
}
#search-input {
  width: 100%; padding: 8px 14px 8px 38px;
  border: 1px solid rgba(255,255,255,0.15); border-radius: 10px;
  background: rgba(255,255,255,0.08); color: #fff; font-size: 14px;
  outline: none; transition: border .2s, box-shadow .2s, background .2s;
}
#search-input::placeholder { color: rgba(255,255,255,0.45); }
#search-input:focus { border-color: var(--accent-light); background: rgba(255,255,255,0.12); box-shadow: 0 0 0 3px rgba(81,103,246,0.25); }
.search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: rgba(255,255,255,0.45); font-size: 15px; pointer-events: none; }
#search-results {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 8px 32px var(--shadow); max-height: 400px; overflow-y: auto; z-index: 2000; display: none;
}
#search-results { max-height: 520px; }
#search-results .sr-item {
  display: block;
  padding: 12px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: background 0.12s;
}
#search-results .sr-item:last-of-type { border-bottom: none; }
#search-results .sr-item:hover,
#search-results .sr-item.is-active { background: var(--bg2); }
#search-results .sr-row { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
#search-results .sr-cat {
  font-size: 10px;
  font-weight: 600;
  color: var(--text2);
  background: var(--bg3);
  padding: 2px 7px;
  border-radius: 4px;
  white-space: nowrap;
  letter-spacing: 0.02em;
}
#search-results .sr-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#search-results .sr-ctx {
  font-size: 12px;
  color: var(--text2);
  line-height: 1.5;
  margin-top: 2px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
#search-results .sr-path {
  font-size: 10px;
  color: var(--text3);
  margin-top: 4px;
  font-family: var(--mono);
}
#search-results .sr-match {
  background: color-mix(in srgb, var(--amber-bg) 80%, transparent);
  color: var(--amber);
  border-radius: 2px;
  padding: 0 2px;
  font-weight: 600;
}
#search-results .sr-empty,
#search-results .sr-loading {
  cursor: default;
  background: transparent !important;
}
#search-results .sr-loading .sr-title::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  vertical-align: -1px;
  animation: sr-spin 0.7s linear infinite;
}
@keyframes sr-spin { to { transform: rotate(360deg); } }
#search-results .sr-footer {
  padding: 8px 14px;
  font-size: 11px;
  color: var(--text3);
  background: var(--bg2);
  border-top: 1px solid var(--border);
  text-align: center;
  position: sticky;
  bottom: 0;
}

.theme-btn {
  margin-left: auto; padding: 6px 14px; border: 1px solid rgba(255,255,255,0.2); border-radius: 10px;
  background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.8); cursor: pointer; font-size: 13px;
  white-space: nowrap; transition: all .2s; display: flex; align-items: center; gap: 6px;
}
.theme-btn:hover { border-color: var(--accent-light); color: #fff; background: rgba(255,255,255,0.12); }
.menu-btn { display: none; background: none; border: none; cursor: pointer; color: rgba(255,255,255,0.8); font-size: 20px; }

/* LAYOUT */
#layout { display: block; padding-top: var(--header-h); min-height: 100vh; }


/* MAIN */
#main { margin: 0 auto; max-width: 1200px; padding: 100px 24px 48px; flex: 1; }

/* SECTIONS */
.section { margin-bottom: 64px; scroll-margin-top: calc(var(--header-h) + 24px); }
.section-hero {
  background: linear-gradient(135deg, var(--brand-dark) 0%, #2a2080 50%, var(--accent) 100%);
  border-radius: var(--radius); padding: 40px 36px; margin-bottom: 44px;
  position: relative; overflow: hidden;
}
.section-hero::before {
  content: ''; position: absolute; top: -50%; right: -20%; width: 60%; height: 200%;
  background: radial-gradient(ellipse, rgba(81,103,246,0.15) 0%, transparent 70%);
  pointer-events: none;
}
h1.doc-title { font-size: 30px; font-weight: 800; color: #fff; line-height: 1.3; margin-bottom: 10px; letter-spacing: -0.02em; }
.doc-subtitle { font-size: 15px; color: rgba(255,255,255,0.75); }
h2.sec-title { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 22px; padding-bottom: 12px; border-bottom: 2px solid var(--border); display: flex; align-items: center; gap: 10px; }
h2.sec-title .icon { font-size: 20px; }
h3.sub-title { font-size: 17px; font-weight: 600; color: var(--text); margin: 28px 0 12px; }
h4.sub2-title { font-size: 15px; font-weight: 600; color: var(--text2); margin: 20px 0 8px; }
p { margin-bottom: 12px; color: var(--text); }
ul, ol { padding-left: 22px; margin-bottom: 12px; }
li { margin-bottom: 5px; }
strong { color: var(--text); }

/* CALLOUT BOXES */
.callout { border-radius: var(--radius); padding: 16px 18px; margin: 16px 0; border-left: 4px solid; }
.callout-best { background: var(--teal-bg); border-color: var(--teal); }
.callout-best .callout-label { color: var(--teal); font-weight: 700; font-size: 12px; text-transform: uppercase; margin-bottom: 6px; }
.callout-warn { background: var(--amber-bg); border-color: var(--amber); }
.callout-warn .callout-label { color: var(--amber); font-weight: 700; font-size: 12px; text-transform: uppercase; margin-bottom: 6px; }
.callout-info { background: var(--blue-bg); border-color: var(--blue); }
.callout-info .callout-label { color: var(--blue); font-weight: 700; font-size: 12px; text-transform: uppercase; margin-bottom: 6px; }
.callout-danger { background: var(--red-bg); border-color: var(--red); }
.callout-danger .callout-label { color: var(--red); font-weight: 700; font-size: 12px; text-transform: uppercase; margin-bottom: 6px; }

/* CODE BLOCKS */
pre { background: var(--brand-dark); border: none; border-radius: var(--radius); padding: 18px 20px; overflow-x: auto; margin: 14px 0; font-family: var(--mono); font-size: 13px; line-height: 1.7; color: #e8e6f4; }
code { font-family: var(--mono); font-size: 13px; background: var(--bg3); border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; }
pre code { background: none; border: none; padding: 0; color: #e8e6f4; }

/* TABLES */
.table-wrap { overflow-x: auto; margin: 16px 0; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th { background: var(--brand-dark); color: rgba(255,255,255,0.9); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); }
td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg2); }
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge-green { background: var(--green-bg); color: var(--green); }
.badge-blue { background: var(--blue-bg); color: var(--blue); }
.badge-amber { background: var(--amber-bg); color: var(--amber); }
.badge-red { background: var(--red-bg); color: var(--red); }
.badge-purple { background: var(--accent-bg); color: var(--accent); }

/* COLLAPSIBLE */
.collapse-wrap { border: 1px solid var(--border); border-radius: var(--radius); margin: 12px 0; }
.collapse-head { padding: 13px 18px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; font-size: 14px; user-select: none; background: var(--bg2); border-radius: var(--radius); transition: background .2s; }
.collapse-head:hover { background: var(--bg3); }
.collapse-head .caret { transition: transform .2s; font-size: 12px; }
.collapse-body { padding: 16px; border-top: 1px solid var(--border); display: none; }
.collapse-wrap.open .caret { transform: rotate(90deg); }
.collapse-wrap.open .collapse-body { display: block; }

/* ARCH DIAGRAM */
.arch-layer { border-radius: var(--radius); padding: 14px 18px; margin: 8px 0; }
.arch-components { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.arch-chip { padding: 5px 12px; border-radius: 20px; font-size: 12px; font-weight: 500; border: 1px solid; }
.layer-purple { background: var(--accent-bg); border-color: var(--accent); }
.layer-purple .arch-chip { background: color-mix(in srgb, var(--accent-bg) 60%, var(--bg)); border-color: var(--accent); color: var(--accent); }
.layer-teal { background: var(--teal-bg); border-color: var(--teal); }
.layer-teal .arch-chip { background: color-mix(in srgb, var(--teal-bg) 60%, var(--bg)); border-color: var(--teal); color: var(--teal); }
.layer-amber { background: var(--amber-bg); border-color: var(--amber); }
.layer-amber .arch-chip { background: color-mix(in srgb, var(--amber-bg) 60%, var(--bg)); border-color: var(--amber); color: var(--amber); }
.layer-blue { background: var(--blue-bg); border-color: var(--blue); }
.layer-blue .arch-chip { background: color-mix(in srgb, var(--blue-bg) 60%, var(--bg)); border-color: var(--blue); color: var(--blue); }
.layer-green { background: var(--green-bg); border-color: var(--green); }
.layer-green .arch-chip { background: color-mix(in srgb, var(--green-bg) 60%, var(--bg)); border-color: var(--green); color: var(--green); }
.arch-layer-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 6px; }
.layer-purple .arch-layer-title { color: var(--accent); }
.layer-teal .arch-layer-title { color: var(--teal); }
.layer-amber .arch-layer-title { color: var(--amber); }
.layer-blue .arch-layer-title { color: var(--blue); }
.layer-green .arch-layer-title { color: var(--green); }
.arch-arrow { text-align: center; color: var(--text3); font-size: 20px; margin: 2px 0; }

/* METRIC CARD */
.metric-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; margin: 16px 0; }
.metric-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; background: var(--bg); box-shadow: 0 2px 8px var(--shadow); transition: box-shadow .2s, transform .2s; }
.metric-card:hover { box-shadow: 0 4px 16px var(--shadow); transform: translateY(-1px); }
.metric-name { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.metric-threshold { font-size: 12px; color: var(--green); font-weight: 600; margin-bottom: 8px; }
.metric-desc { font-size: 13px; color: var(--text2); }
.metric-formula { font-size: 12px; font-family: var(--mono); background: var(--bg3); padding: 6px 10px; border-radius: 6px; margin-top: 8px; border: 1px solid var(--border); }

/* HIGHLIGHT */
.highlight { background: color-mix(in srgb, var(--amber-bg) 80%, transparent); border-radius: 2px; }

/* BACK TO TOP */
#back-top {
  position: fixed; bottom: 28px; right: 28px;
  background: linear-gradient(135deg, var(--brand-dark), var(--accent)); color: #fff; border: none; border-radius: 50%;
  width: 44px; height: 44px; cursor: pointer; font-size: 18px;
  box-shadow: 0 4px 16px rgba(67,83,255,0.3); opacity: 0; transition: all .3s;
  display: flex; align-items: center; justify-content: center; z-index: 999;
}
#back-top.visible { opacity: 1; }
#back-top:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(67,83,255,0.4); }

/* PROGRESS BAR */
#progress { position: fixed; top: var(--header-h); left: 0; height: 3px; background: linear-gradient(90deg, var(--accent), var(--orange)); z-index: 1001; transition: width .1s; width: 0; }

/* LAYER BADGE */
.layer-badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 20px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 10px; }

/* TAG */
.tag { display: inline-block; font-size: 11px; padding: 3px 8px; border-radius: 20px; border: 1px solid var(--border); color: var(--text2); margin: 2px; }

/* STEP LIST */
.step-list { list-style: none; padding: 0; counter-reset: steps; }
.step-list li { counter-increment: steps; padding: 10px 10px 10px 44px; position: relative; border-left: 2px solid var(--border); margin-left: 12px; margin-bottom: 4px; }
.step-list li::before { content: counter(steps); position: absolute; left: -16px; top: 10px; width: 28px; height: 28px; background: linear-gradient(135deg, var(--brand-dark), var(--accent)); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; }

/* FOOTER */
.komtas-footer {
  background: var(--brand-dark); color: rgba(255,255,255,0.7);
  padding: 40px 24px 28px; font-size: 13px;
}
.komtas-footer .footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 32px; margin-bottom: 28px; flex-wrap: wrap; }
.komtas-footer .footer-brand img { height: 28px; filter: brightness(0) invert(1); margin-bottom: 12px; }
.komtas-footer .footer-brand p { max-width: 320px; line-height: 1.6; color: rgba(255,255,255,0.5); }
.komtas-footer .footer-links { display: flex; gap: 32px; flex-wrap: wrap; }
.komtas-footer .footer-links a { color: rgba(255,255,255,0.6); text-decoration: none; transition: color .2s; }
.komtas-footer .footer-links a:hover { color: #fff; }
.komtas-footer .footer-divider { border: none; border-top: 1px solid rgba(255,255,255,0.1); margin: 0 0 16px; }
.komtas-footer .footer-bottom { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: rgba(255,255,255,0.4); flex-wrap: wrap; gap: 8px; }

/* DARK THEME TABLE OVERRIDE */
[data-theme="dark"] th { background: #1e1b3a; color: rgba(255,255,255,0.8); }
[data-theme="dark"] pre { background: #0d0b1a; border: 1px solid var(--border); }
[data-theme="dark"] .section-hero { background: linear-gradient(135deg, #0d0b1a 0%, #1e1550 50%, #2a2080 100%); }
[data-theme="dark"] .komtas-footer { background: #0a0025; }

/* RESPONSIVE */
@media (max-width: 768px) {
  #main { padding: 24px 20px 60px; }
  .komtas-footer { padding: 32px 20px 24px; }
  .metric-grid { grid-template-columns: 1fr; }
}

@media print {
  #topbar, #sidebar, #back-top, #progress, .komtas-footer { display: none; }
  #main { margin-left: 0; padding: 0; max-width: 100%; }
  pre { white-space: pre-wrap; }
}

/* ── LANDING PAGE ─────────────────────────────────────────────────────────── */
#landing { scroll-margin-top: calc(var(--header-h) + 24px); padding-bottom: 16px; }
.landing-hero {
  background: linear-gradient(135deg, var(--brand-dark) 0%, #1a0c5c 35%, #2c2b8f 65%, var(--accent) 100%);
  border-radius: var(--radius); padding: 52px 44px; margin-bottom: 36px;
  position: relative; overflow: hidden;
}
.landing-hero::before {
  content: ''; position: absolute; top: -30%; right: -10%; width: 50%; height: 160%;
  background: radial-gradient(ellipse, rgba(123,138,255,.15) 0%, transparent 65%); pointer-events: none;
}
.landing-badge {
  display: inline-block; background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2); border-radius: 20px;
  padding: 4px 14px; font-size: 11px; font-weight: 600;
  color: rgba(255,255,255,.85); letter-spacing: .06em; text-transform: uppercase; margin-bottom: 16px;
}
.landing-title { font-size: 36px; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 12px; letter-spacing: -.025em; }
.landing-subtitle { font-size: 15px; color: rgba(255,255,255,.75); margin-bottom: 28px; max-width: 560px; line-height: 1.65; }
.landing-stats { display: flex; gap: 0; margin-bottom: 28px; flex-wrap: wrap; }
.landing-stat { padding-right: 28px; }
.landing-stat .stat-num { font-size: 30px; font-weight: 800; color: #fff; line-height: 1; }
.landing-stat .stat-label { font-size: 10px; color: rgba(255,255,255,.6); text-transform: uppercase; letter-spacing: .05em; margin-top: 3px; }
.landing-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.25);
  border-radius: 10px; padding: 10px 22px; color: #fff; font-size: 14px; font-weight: 600;
  text-decoration: none; transition: all .2s;
}
.landing-cta:hover { background: rgba(255,255,255,.22); color: #fff; transform: translateX(3px); }
.landing-cards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; margin-bottom: 36px;
}
.landing-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 16px; text-decoration: none; transition: all .2s; cursor: pointer; display: block;
}
.landing-card:hover {
  border-color: var(--accent); background: var(--accent-bg);
  transform: translateY(-2px); box-shadow: 0 4px 16px var(--shadow);
}
.landing-card-icon { font-size: 22px; margin-bottom: 8px; }
.landing-card-title { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.landing-card-desc { font-size: 11.5px; color: var(--text2); line-height: 1.5; }
.landing-howto {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 28px;
}
.landing-howto h3 { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 16px; }
.howto-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; }
.howto-item { display: flex; gap: 10px; align-items: flex-start; }
.howto-icon {
  width: 32px; height: 32px; border-radius: 8px; background: var(--accent-bg);
  display: flex; align-items: center; justify-content: center; font-size: 15px; flex-shrink: 0;
}
.howto-text .ht-title { font-size: 12px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.howto-text .ht-desc { font-size: 11px; color: var(--text2); line-height: 1.4; }


/* ── COPILOT ARCHITECTURE SVG ─────────────────────────────────────────────── */
.ca-wrap {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin: 20px 0; overflow-x: auto;
}
.ca-wrap-label {
  font-size: 11px; color: var(--text2); text-align: center; margin-bottom: 12px;
  text-transform: uppercase; letter-spacing: .05em;
}
.ca-wrap svg { display: block; width: 100%; max-width: 680px; margin: 0 auto; }
.ca-wrap text.th { font-size: 14px; font-weight: 500; font-family: system-ui, sans-serif; fill: var(--text); }
.ca-wrap text.ts { font-size: 12px; font-family: system-ui, sans-serif; fill: var(--text2); }
.ca-wrap .c-purple rect, .ca-wrap .c-purple circle, .ca-wrap .c-purple ellipse { fill: #EEEDFE; stroke: #534AB7; }
.ca-wrap .c-purple .th { fill: #3C3489; } .ca-wrap .c-purple .ts { fill: #534AB7; }
.ca-wrap .c-teal rect, .ca-wrap .c-teal circle, .ca-wrap .c-teal ellipse { fill: #E1F5EE; stroke: #0F6E56; }
.ca-wrap .c-teal .th { fill: #085041; } .ca-wrap .c-teal .ts { fill: #0F6E56; }
.ca-wrap .c-amber rect, .ca-wrap .c-amber circle, .ca-wrap .c-amber ellipse { fill: #FAEEDA; stroke: #854F0B; }
.ca-wrap .c-amber .th { fill: #633806; } .ca-wrap .c-amber .ts { fill: #854F0B; }
.ca-wrap .c-blue rect, .ca-wrap .c-blue circle, .ca-wrap .c-blue ellipse { fill: #E6F1FB; stroke: #185FA5; }
.ca-wrap .c-blue .th { fill: #0C447C; } .ca-wrap .c-blue .ts { fill: #185FA5; }
.ca-wrap .c-green rect, .ca-wrap .c-green circle, .ca-wrap .c-green ellipse { fill: #EAF3DE; stroke: #3B6D11; }
.ca-wrap .c-green .th { fill: #27500A; } .ca-wrap .c-green .ts { fill: #3B6D11; }
.ca-wrap .c-gray rect, .ca-wrap .c-gray circle, .ca-wrap .c-gray ellipse { fill: #F1EFE8; stroke: #5F5E5A; }
.ca-wrap .c-gray .th { fill: #2C2C2A; } .ca-wrap .c-gray .ts { fill: #5F5E5A; }
[data-theme="dark"] .ca-wrap .c-purple rect,[data-theme="dark"] .ca-wrap .c-purple circle,[data-theme="dark"] .ca-wrap .c-purple ellipse { fill: #3C3489; stroke: #AFA9EC; }
[data-theme="dark"] .ca-wrap .c-purple .th { fill: #CECBF6; } [data-theme="dark"] .ca-wrap .c-purple .ts { fill: #AFA9EC; }
[data-theme="dark"] .ca-wrap .c-teal rect,[data-theme="dark"] .ca-wrap .c-teal circle,[data-theme="dark"] .ca-wrap .c-teal ellipse { fill: #085041; stroke: #5DCAA5; }
[data-theme="dark"] .ca-wrap .c-teal .th { fill: #9FE1CB; } [data-theme="dark"] .ca-wrap .c-teal .ts { fill: #5DCAA5; }
[data-theme="dark"] .ca-wrap .c-amber rect,[data-theme="dark"] .ca-wrap .c-amber circle,[data-theme="dark"] .ca-wrap .c-amber ellipse { fill: #633806; stroke: #EF9F27; }
[data-theme="dark"] .ca-wrap .c-amber .th { fill: #FAC775; } [data-theme="dark"] .ca-wrap .c-amber .ts { fill: #EF9F27; }
[data-theme="dark"] .ca-wrap .c-blue rect,[data-theme="dark"] .ca-wrap .c-blue circle,[data-theme="dark"] .ca-wrap .c-blue ellipse { fill: #0C447C; stroke: #85B7EB; }
[data-theme="dark"] .ca-wrap .c-blue .th { fill: #B5D4F4; } [data-theme="dark"] .ca-wrap .c-blue .ts { fill: #85B7EB; }
[data-theme="dark"] .ca-wrap .c-green rect,[data-theme="dark"] .ca-wrap .c-green circle,[data-theme="dark"] .ca-wrap .c-green ellipse { fill: #27500A; stroke: #97C459; }
[data-theme="dark"] .ca-wrap .c-green .th { fill: #C0DD97; } [data-theme="dark"] .ca-wrap .c-green .ts { fill: #97C459; }
[data-theme="dark"] .ca-wrap .c-gray rect,[data-theme="dark"] .ca-wrap .c-gray circle,[data-theme="dark"] .ca-wrap .c-gray ellipse { fill: #444441; stroke: #B4B2A9; }
[data-theme="dark"] .ca-wrap .c-gray .th { fill: #D3D1C7; } [data-theme="dark"] .ca-wrap .c-gray .ts { fill: #B4B2A9; }


/* ── CODE COPY BUTTON ─────────────────────────────────────────────────────── */
.pre-wrap {
  position: relative;
}
.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 10px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 6px;
  color: rgba(255,255,255,0.65);
  font-size: 11px;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: all .15s;
  letter-spacing: .02em;
  display: flex;
  align-items: center;
  gap: 4px;
  line-height: 1;
  opacity: 0;
  user-select: none;
  z-index: 10;
}
.pre-wrap:hover .copy-btn,
.copy-btn:focus {
  opacity: 1;
}
.copy-btn:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.30);
  color: #fff;
}
.copy-btn.copied {
  background: rgba(45,164,111,0.25);
  border-color: rgba(45,164,111,0.50);
  color: #5dcaa5;
  opacity: 1;
}


/* ── SECTION REFERENCE LINKS ─────────────────────────────────────────────── */
a.sec-ref {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: var(--accent-bg);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 5px;
  padding: 1px 7px 1px 5px;
  font-size: 11.5px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: all .15s;
  line-height: 1.6;
}
a.sec-ref::before {
  content: '↗';
  font-size: 10px;
  opacity: 0.7;
}
a.sec-ref:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 2px 6px color-mix(in srgb, var(--accent) 35%, transparent);
}
td a.sec-ref + a.sec-ref {
  margin-left: 3px;
}


/* ── Kod Dipnotu (textbook-style) ── */
.code-note {
  margin: -2px 0 22px;
  padding: 12px 16px 12px 18px;
  background: color-mix(in srgb, var(--bg2) 70%, transparent);
  border-left: 3px solid var(--accent);
  border-radius: 0 6px 6px 0;
  font-size: 12.5px;
  color: var(--text2);
  line-height: 1.65;
}
.code-note .cn-title {
  font-weight: 700;
  color: var(--accent);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 7px;
}
.code-note ul { margin: 0; padding-left: 18px; }
.code-note li { margin: 4px 0; }
.code-note li strong { color: var(--text); }
.code-note code {
  background: var(--bg3);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 11.5px;
}

/* ── YouTube Referans Kartları ── */
.yt-refs {
  margin: 20px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.yt-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  flex: 1 1 280px;
  min-width: 240px;
  transition: border-color .2s, box-shadow .2s;
}
.yt-card:hover {
  border-color: #ff0000;
  box-shadow: 0 2px 10px rgba(255,0,0,.1);
}
.yt-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: #ff0000;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.yt-icon svg { width: 18px; height: 18px; }
.yt-meta { display: flex; flex-direction: column; gap: 2px; }
.yt-channel { font-size: 11px; color: var(--text2); }
.yt-title { font-size: 13px; font-weight: 600; line-height: 1.35; }
.yt-desc { font-size: 12px; color: var(--text2); margin-top: 2px; }

/* ── HOME HERO & 5 KATEGORİ KARTLARI ─────────────────────────────────────── */
.home-hero { padding: 60px 24px; text-align: center; }
.home-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px;
  text-align: left; margin: 40px 0;
}
.home-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: 16px;
  padding: 28px; cursor: pointer; text-decoration: none; display: block;
  transition: all .2s; display: flex; flex-direction: column;
}
.home-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 4px 16px var(--shadow); }
.home-card.featured { border: 2px solid var(--accent); position: relative; }
.home-card-badge {
  position: absolute; top: -10px; left: 28px;
  background: var(--accent); color: #fff; padding: 3px 12px; border-radius: 12px;
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em;
}
.home-card-num {
  width: 36px; height: 36px; border-radius: 8px; display: flex; align-items: center;
  justify-content: center; font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 12px;
}
.home-card h3 { font-size: 20px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.home-card p { font-size: 14px; color: var(--text2); margin-bottom: 16px; flex-grow: 1; }
.home-card-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.home-card-chips span {
  background: var(--bg3); color: var(--text2); padding: 4px 10px; border-radius: 6px;
  font-size: 12px; white-space: nowrap;
}
.home-grid > .home-card:nth-last-child(1) { grid-column: 1 / -1; }

/* ── KATEGORİ LANDING PAGES ───────────────────────────────────────────────── */
.cat-page { padding-top: 80px; }
.crumb {
  font-size: 12px; color: var(--text2); margin-bottom: 24px; display: flex; gap: 8px;
  align-items: center;
}
.crumb a { color: var(--accent); text-decoration: none; }
.crumb a:hover { text-decoration: underline; }
.crumb strong { color: var(--text); font-weight: 600; }
.cat-page-hero { margin-bottom: 36px; }
.cat-page-hero h2 { font-size: 32px; font-weight: 700; color: var(--text); margin-bottom: 12px; }
.cat-page-hero p { font-size: 16px; color: var(--text2); max-width: 640px; }
.cat-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 12px;
  margin-bottom: 36px;
}
.cat-section-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; text-decoration: none; display: block; transition: all .2s;
}
.cat-section-card:hover { border-color: var(--accent); }
.cat-section-card h3 { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.cat-section-card p { font-size: 13px; color: var(--text2); }
.section-back {
  margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border);
  font-size: 13px; display: flex; gap: 12px; align-items: center;
}
.section-back a { color: var(--accent); text-decoration: none; }
.section-back a:hover { text-decoration: underline; }

/* ── TOPBAR HOME BUTTON ───────────────────────────────────────────────────── */
.topbar-home-btn {
  color: rgba(255,255,255,0.8); text-decoration: none; padding: 6px 14px;
  border: 1px solid rgba(255,255,255,0.15); border-radius: 10px;
  font-size: 13px; transition: all .2s; white-space: nowrap; display: none;
}
.topbar-home-btn:hover { border-color: var(--accent-light); color: #fff; background: rgba(255,255,255,0.12); }
#topbar:not(:has(.logo[href="#landing"])) ~ main #landing { display: none; }



/* Multi-page navigation styles */
.page-nav-bottom {
  max-width: 1200px;
  margin: 60px auto 0;
  padding: 24px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.page-nav-bottom a {
  display: block;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  background: var(--bg);
  transition: all 0.2s;
}
.page-nav-bottom a:hover {
  border-color: var(--accent);
  background: var(--accent-bg);
}
.page-nav-bottom .nav-prev { text-align: left; }
.page-nav-bottom .nav-next { text-align: right; }
.page-nav-bottom .nav-label {
  font-size: 12px;
  color: var(--text3);
  margin-bottom: 4px;
  display: block;
}
.page-nav-bottom .nav-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}
.topbar-home-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 8px;
  background: rgba(255,255,255,0.1); color: #fff;
  text-decoration: none; font-size: 13px; font-weight: 500;
  transition: background 0.2s;
}
.topbar-home-btn:hover { background: rgba(255,255,255,0.2); color: #fff; }

/* Topbar Sözlük butonu */
.topbar-glossary-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 8px;
  background: rgba(255,255,255,0.1); color: #fff;
  text-decoration: none; font-size: 13px; font-weight: 500;
  transition: background 0.2s; white-space: nowrap;
}
.topbar-glossary-btn:hover { background: rgba(123,138,255,0.35); color: #fff; }

.topbar-chat-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 8px;
  background: rgba(255,255,255,0.1); color: #fff;
  text-decoration: none; font-size: 13px; font-weight: 500;
  transition: background 0.2s; white-space: nowrap;
}
.topbar-chat-btn:hover { background: rgba(93,202,165,0.35); color: #fff; }

.topbar-logout-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 8px;
  background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.9);
  text-decoration: none; font-size: 13px; font-weight: 500;
  transition: background 0.2s; white-space: nowrap; cursor: pointer;
  border: 1px solid rgba(255,255,255,0.12);
}
.topbar-logout-btn:hover { background: rgba(225,99,55,0.35); color: #fff; border-color: rgba(255,255,255,0.2); }

/* ── SÖZLÜK TOOLTIP (Glossary Tooltip) ───────────────────────────────────── */
.gloss {
  border-bottom: 1px dashed var(--accent);
  cursor: help;
  position: relative;
  display: inline;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s;
}
.gloss:hover, .gloss:focus {
  background: var(--accent-bg);
  outline: none;
}
.gloss::after {
  content: "";
  position: absolute;
  inset: 0;
}
.gloss-tip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand-dark);
  color: #fff;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 12.5px;
  line-height: 1.55;
  width: 300px;
  max-width: 90vw;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transform-origin: bottom center;
  transform: translateX(-50%) translateY(4px);
  transition: opacity 0.15s, transform 0.15s;
  box-shadow: 0 8px 28px rgba(22,0,66,0.35);
  font-family: var(--font);
  font-weight: 400;
  text-align: left;
  white-space: normal;
}
.gloss-tip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--brand-dark);
}
.gloss:hover .gloss-tip,
.gloss:focus .gloss-tip,
.gloss-tip.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.gloss-tip-tr {
  font-weight: 700;
  color: #fff;
  font-size: 13px;
  margin-bottom: 2px;
}
.gloss-tip-en {
  font-style: italic;
  color: rgba(255,255,255,0.55);
  font-size: 11px;
  margin-bottom: 6px;
}
.gloss-tip-def {
  color: rgba(255,255,255,0.92);
  font-size: 12px;
  margin-bottom: 8px;
}
.gloss-tip-avoid {
  background: rgba(225,99,55,0.18);
  border-left: 2px solid var(--red);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  color: #ffd7c8;
  margin-bottom: 6px;
}
.gloss-tip-link {
  display: inline-block;
  font-size: 11px;
  color: var(--accent-light);
  text-decoration: none;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 6px;
  margin-top: 4px;
}
.gloss-tip-link:hover { color: #fff; }

/* Tooltip alttan açıldığında alt-üst değiştir */
.gloss-tip.flip {
  bottom: auto;
  top: calc(100% + 8px);
}
.gloss-tip.flip::after {
  top: auto;
  bottom: 100%;
  border-top-color: transparent;
  border-bottom-color: var(--brand-dark);
}

@media (max-width: 768px) {
  .page-nav-bottom { grid-template-columns: 1fr; }
  .gloss-tip { width: 260px; }
}


/* TOC (Table of Contents) */
.page-toc {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 24px 0 32px;
}
.page-toc-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text3);
  margin-bottom: 10px;
  font-weight: 600;
}
.page-toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
  columns: 2;
  column-gap: 24px;
}
.page-toc ul li {
  padding: 4px 0;
  font-size: 13px;
  break-inside: avoid;
}
.page-toc ul li a {
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.page-toc ul li a:hover { color: var(--accent); }
.page-toc ul li a::before {
  content: "→";
  color: var(--text3);
  font-size: 11px;
}
@media (max-width: 640px) {
  .page-toc ul { columns: 1; }
}

/* Related sections */
.related-sections {
  margin-top: 40px;
  padding: 20px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.related-sections-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text3);
  margin-bottom: 12px;
  font-weight: 600;
}
.related-sections-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}
.related-sections-grid a {
  display: block;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
  transition: all 0.2s;
}
.related-sections-grid a:hover {
  border-color: var(--accent);
  background: var(--accent-bg);
  color: var(--accent);
}

/* Ana sayfa — RAG sohbet */
.home-chat-section {
  margin-bottom: 32px;
  padding: 20px 22px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 4px 24px var(--shadow);
}
.home-chat-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.home-chat-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 4px;
}
.home-chat-sub {
  font-size: 13px;
  color: var(--text2);
  margin: 0;
  max-width: 640px;
  line-height: 1.5;
}
.home-chat-badge {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: var(--accent-bg);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.home-chat-messages {
  min-height: 120px;
  max-height: 320px;
  overflow-y: auto;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.6;
}
.home-chat-msg {
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: 8px;
}
.home-chat-msg:last-child { margin-bottom: 0; }
.home-chat-msg.user {
  background: var(--accent-bg);
  border-left: 3px solid var(--accent);
  margin-left: 12px;
}
.home-chat-msg.assistant {
  background: var(--bg3);
  border-left: 3px solid var(--teal);
  margin-right: 12px;
  white-space: pre-wrap;
}
.home-chat-msg-meta {
  font-size: 11px;
  color: var(--text3);
  margin-bottom: 6px;
  font-weight: 600;
}
.home-chat-sources {
  font-size: 12px;
  color: var(--text2);
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}
.home-chat-sources ul {
  margin: 6px 0 0;
  padding-left: 18px;
}
.home-chat-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}
.home-chat-input {
  flex: 1;
  min-height: 44px;
  max-height: 120px;
  padding: 10px 14px;
  font-family: var(--font);
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  resize: vertical;
}
.home-chat-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}
.home-chat-send {
  padding: 10px 18px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
}
.home-chat-send:hover:not(:disabled) {
  opacity: 0.92;
  transform: translateY(-1px);
}
.home-chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.home-chat-hint {
  font-size: 12px;
  color: var(--text3);
  margin-top: 10px;
}
.home-chat-error {
  color: var(--red);
  font-size: 13px;
  margin-top: 8px;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}