/* ============================================================================
   ARVION UI, shared shell for the Arvion Technologies open-source showcase.
   Brand: deep navy (#0b0f1a), gold (#f5c26b), electric blue (#3a7bff).
   Zero build step, zero dependencies. Drop this file next to a demo.
   ========================================================================== */

/* ---------- fonts (self-hosted, latin subset) ------------------------------ */
@font-face {
  font-family: "Inter";
  src: url("fonts/Inter-400_700.woff2") format("woff2");
  font-weight: 400 700;
  font-display: swap;
}
@font-face {
  font-family: "Poppins";
  src: url("fonts/Poppins-500.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "Poppins";
  src: url("fonts/Poppins-600.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Poppins";
  src: url("fonts/Poppins-700.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

/* ---------- tokens -------------------------------------------------------- */
:root {
  --bg: #0b0f1a;
  --bg-soft: #0e1322;
  --surface: #121826;
  --surface-2: #171f31;
  --surface-3: #1d2740;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #ffffff;
  --text-2: #cfd6e4;
  --muted: #8d98ab;
  --gold: #f5c26b;
  --gold-soft: rgba(245, 194, 107, 0.12);
  --gold-line: rgba(245, 194, 107, 0.32);
  --blue: #3a7bff;
  --blue-soft: rgba(58, 123, 255, 0.12);
  --green: #34d399;
  --green-soft: rgba(52, 211, 153, 0.12);
  --red: #f87171;
  --red-soft: rgba(248, 113, 113, 0.12);
  --amber: #fbbf24;
  --purple: #a78bfa;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 22px;
  --radius-full: 999px;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 24px 60px -30px rgba(0, 0, 0, 0.9);
  --shadow-soft: 0 12px 32px -20px rgba(0, 0, 0, 0.85);
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-display: "Poppins", var(--font-sans);
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --maxw: 1240px;
  --topbar-h: 64px;
}

/* opt-in light surface for docs / comparison screens */
.theme-light {
  --bg: #f4f6fb;
  --bg-soft: #eef1f8;
  --surface: #ffffff;
  --surface-2: #f7f8fc;
  --surface-3: #eef1f8;
  --line: rgba(11, 15, 26, 0.09);
  --line-strong: rgba(11, 15, 26, 0.16);
  --text: #0b0f1a;
  --text-2: #2b3447;
  --muted: #5a6579;
  --gold-soft: rgba(154, 106, 14, 0.1);
  --gold-line: rgba(154, 106, 14, 0.28);
  --blue-soft: rgba(58, 123, 255, 0.1);
  --green-soft: rgba(5, 150, 105, 0.1);
  --red-soft: rgba(220, 38, 38, 0.08);
}

/* ---------- reset --------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(28px, 3.2vw, 42px); font-weight: 700; }
h2 { font-size: clamp(20px, 2vw, 26px); }
h3 { font-size: 17px; }
p { margin: 0 0 1em; color: var(--text-2); }
a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }
code, kbd, pre, samp { font-family: var(--font-mono); font-size: 0.875em; }
kbd {
  background: var(--surface-3); border: 1px solid var(--line-strong);
  border-radius: 6px; padding: 1px 6px; color: var(--text-2);
}
img, svg, canvas { max-width: 100%; }
hr { border: 0; border-top: 1px solid var(--line); margin: 24px 0; }
::selection { background: var(--gold); color: #10131c; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; border-radius: 4px; }

/* ---------- ambient backdrop ---------------------------------------------- */
.aurora {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(700px 420px at 12% -8%, rgba(245, 194, 107, 0.10), transparent 65%),
    radial-gradient(820px 520px at 88% -12%, rgba(58, 123, 255, 0.13), transparent 68%),
    radial-gradient(1200px 700px at 50% 120%, rgba(58, 123, 255, 0.05), transparent 70%);
}
.grid-lines {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.35;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(800px 500px at 50% 0%, #000 30%, transparent 85%);
}

/* ---------- app shell ----------------------------------------------------- */
.app { position: relative; z-index: 1; min-height: 100vh; }
.shell { display: grid; grid-template-columns: 240px minmax(0, 1fr); min-height: 100vh; }
.shell.narrow { grid-template-columns: 76px minmax(0, 1fr); }

.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 14px;
  height: var(--topbar-h);
  padding: 0 22px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar .spacer, .spacer { flex: 1; }

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px;
  display: grid; place-items: center; flex: none;
  background: linear-gradient(145deg, #1b2440, #0d1220);
  border: 1px solid var(--gold-line);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5) inset, 0 8px 20px -12px rgba(245, 194, 107, 0.5);
  color: var(--gold); font-family: var(--font-display); font-weight: 700; font-size: 15px;
}
.brand-word { font-family: var(--font-display); font-weight: 600; letter-spacing: 0.16em; font-size: 13px; }
.brand-word b { color: var(--gold); font-weight: 600; }
.brand-sub { font-size: 11px; color: var(--muted); letter-spacing: 0.12em; text-transform: uppercase; }

.sidebar {
  border-right: 1px solid var(--line);
  padding: 18px 14px;
  background: linear-gradient(180deg, rgba(18, 24, 38, 0.7), rgba(11, 15, 26, 0.2));
  display: flex; flex-direction: column; gap: 6px;
  position: sticky; top: 0; height: 100vh; overflow: auto;
}
.sidebar .nav-label {
  font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--muted); padding: 14px 10px 6px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: var(--radius-sm);
  color: var(--text-2); font-size: 13.5px; font-weight: 500;
  border: 1px solid transparent;
}
.nav-item:hover { background: rgba(255, 255, 255, 0.04); text-decoration: none; color: var(--text); }
.nav-item.active {
  background: var(--gold-soft); border-color: var(--gold-line); color: var(--gold);
}
.nav-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.6; }

.main { min-width: 0; padding: 26px 30px 64px; }
.main.tight { padding: 18px 20px 48px; }
.page-head { display: flex; align-items: flex-start; gap: 18px; margin-bottom: 22px; }
.page-head h1 { margin-bottom: 4px; }
.eyebrow {
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--gold); font-weight: 600; margin-bottom: 8px;
}
.lede { color: var(--muted); max-width: 62ch; }

/* ---------- layout helpers ------------------------------------------------ */
.row { display: flex; align-items: center; gap: 12px; }
.row.wrap { flex-wrap: wrap; }
.col { display: flex; flex-direction: column; gap: 12px; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.span-2 { grid-column: span 2; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-0 { margin-bottom: 0; } .mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.mono { font-family: var(--font-mono); }
.nowrap { white-space: nowrap; }
.right { margin-left: auto; }
.center { text-align: center; }
.hide { display: none !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;
}

/* ---------- cards --------------------------------------------------------- */
.card {
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-soft);
}
.card.pad-sm { padding: 14px; }
.card.flat { background: var(--surface); box-shadow: none; }
.card.glow { border-color: var(--gold-line); box-shadow: 0 0 0 1px rgba(245, 194, 107, 0.06), var(--shadow); }
.card-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.card-head h3, .card-head h2 { margin: 0; }
.card-title { font-family: var(--font-display); font-weight: 600; font-size: 15px; margin: 0; }
.card-sub { color: var(--muted); font-size: 12.5px; margin: 2px 0 0; }

/* ---------- stats --------------------------------------------------------- */
.stat { display: flex; flex-direction: column; gap: 6px; }
.stat-label {
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
  display: flex; align-items: center; gap: 6px;
}
.stat-value {
  font-family: var(--font-display); font-weight: 600; font-size: 30px; line-height: 1.05;
  letter-spacing: -0.02em; font-variant-numeric: tabular-nums;
}
.stat-value.gold { color: var(--gold); }
.stat-value.green { color: var(--green); }
.stat-delta { font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.stat-delta.up { color: var(--green); }
.stat-delta.down { color: var(--red); }

/* ---------- buttons ------------------------------------------------------- */
.btn {
  --btn-bg: transparent; --btn-fg: var(--text); --btn-bd: var(--line-strong);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 16px; border-radius: 10px;
  background: var(--btn-bg); color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  font: 600 13.5px/1 var(--font-sans);
  cursor: pointer; white-space: nowrap;
  transition: transform 0.12s var(--ease), background 0.15s, border-color 0.15s, box-shadow 0.15s;
}
.btn:hover { background: rgba(255, 255, 255, 0.05); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.primary {
  --btn-bg: linear-gradient(180deg, color-mix(in srgb, var(--gold) 70%, #fff), var(--gold));
  --btn-fg: #1a1405; --btn-bd: #e3a94e;
  box-shadow: 0 10px 24px -14px rgba(245, 194, 107, 0.8);
}
.btn.primary:hover { --btn-bg: linear-gradient(180deg, color-mix(in srgb, var(--gold) 55%, #fff), var(--gold)); }
.btn.blue { --btn-bg: linear-gradient(180deg, #5b90ff, var(--blue)); --btn-fg: #fff; --btn-bd: #2a63d9; }
.btn.ghost { --btn-bd: transparent; color: var(--text-2); }
.btn.ghost:hover { color: var(--text); }
.btn.danger { --btn-fg: var(--red); --btn-bd: rgba(248, 113, 113, 0.4); }
.btn.sm { padding: 6px 11px; font-size: 12px; border-radius: 8px; }
.btn.lg { padding: 12px 22px; font-size: 15px; border-radius: 12px; }
.btn.icon { padding: 8px; width: 34px; height: 34px; }
.btn[disabled] { opacity: 0.45; cursor: not-allowed; }

/* ---------- badges / pills / tags ----------------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 9px; border-radius: var(--radius-full);
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.01em;
  border: 1px solid var(--line-strong); color: var(--text-2); background: rgba(255, 255, 255, 0.03);
}
.badge.gold { color: var(--gold); border-color: var(--gold-line); background: var(--gold-soft); }
.badge.green { color: var(--green); border-color: rgba(52, 211, 153, 0.35); background: var(--green-soft); }
.badge.red { color: var(--red); border-color: rgba(248, 113, 113, 0.35); background: var(--red-soft); }
.badge.blue { color: #8fb4ff; border-color: rgba(58, 123, 255, 0.4); background: var(--blue-soft); }
.badge.purple { color: var(--purple); border-color: rgba(167, 139, 250, 0.35); background: rgba(167, 139, 250, 0.1); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; flex: none; }
.dot.pulse { box-shadow: 0 0 0 0 currentColor; animation: dot-pulse 2s infinite; }
@keyframes dot-pulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55); }
  70% { box-shadow: 0 0 0 7px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

/* ---------- forms --------------------------------------------------------- */
label.field { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; color: var(--muted); font-weight: 500; }
.input, .select, .textarea {
  width: 100%; padding: 10px 12px;
  background: rgba(6, 9, 16, 0.55);
  border: 1px solid var(--line-strong); border-radius: 10px;
  color: var(--text); font: 400 14px/1.4 var(--font-sans);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.input::placeholder, .textarea::placeholder { color: #5e6a7d; }
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--gold-line);
  box-shadow: 0 0 0 3px rgba(245, 194, 107, 0.12);
}
.textarea { min-height: 96px; resize: vertical; }
.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 32px; }
.switch { position: relative; width: 40px; height: 22px; border-radius: 999px; background: var(--surface-3); border: 1px solid var(--line-strong); cursor: pointer; transition: background 0.2s; flex: none; }
.switch::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform 0.2s var(--ease); }
.switch[aria-checked="true"] { background: var(--gold); border-color: var(--gold); }
.switch[aria-checked="true"]::after { transform: translateX(18px); background: #1a1405; }
.search { position: relative; }
.search .input { padding-left: 36px; }
.search::before { content: "⌕"; position: absolute; left: 13px; top: 50%; transform: translateY(-54%); color: var(--muted); font-size: 16px; }

/* ---------- tables -------------------------------------------------------- */
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th {
  position: sticky; top: 0; z-index: 1;
  text-align: left; font: 600 11px/1 var(--font-sans);
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
  padding: 12px 14px; background: var(--surface-2); border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.table td { padding: 12px 14px; border-bottom: 1px solid var(--line); color: var(--text-2); vertical-align: middle; }
.table tbody tr:hover { background: rgba(255, 255, 255, 0.025); }
.table tbody tr:last-child td { border-bottom: 0; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.table .strong { color: var(--text); font-weight: 600; }

/* ---------- progress / meters -------------------------------------------- */
.progress { height: 8px; border-radius: 99px; background: var(--surface-3); overflow: hidden; }
.progress > i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, color-mix(in srgb, var(--gold) 72%, #000), var(--gold)); transition: width 0.5s var(--ease); }
.progress.blue > i { background: linear-gradient(90deg, #2f66e0, #6f9dff); }
.progress.green > i { background: linear-gradient(90deg, #0f9f74, var(--green)); }
.meter { display: flex; align-items: center; gap: 10px; }

/* ---------- avatars ------------------------------------------------------- */
.avatar {
  width: 32px; height: 32px; border-radius: 50%; flex: none;
  display: grid; place-items: center;
  font: 600 12px/1 var(--font-sans); color: #10131c;
  background: linear-gradient(135deg, color-mix(in srgb, var(--gold) 55%, #fff), var(--gold));
  border: 1px solid rgba(0, 0, 0, 0.35);
}
.avatar.blue { background: linear-gradient(135deg, #9dc0ff, #3a7bff); color: #fff; }
.avatar.green { background: linear-gradient(135deg, #9bf0d0, #1aa87a); color: #06281d; }
.avatar.purple { background: linear-gradient(135deg, #d3c4ff, #7c5cff); color: #150a3a; }
.avatar.sm { width: 24px; height: 24px; font-size: 10px; }
.avatar.lg { width: 44px; height: 44px; font-size: 15px; }
.stack { display: flex; }
.stack .avatar + .avatar { margin-left: -8px; box-shadow: 0 0 0 2px var(--surface); }

/* ---------- misc components ---------------------------------------------- */
.divider { height: 1px; background: var(--line); margin: 16px 0; }
.empty {
  padding: 40px 20px; text-align: center; color: var(--muted);
  border: 1px dashed var(--line-strong); border-radius: var(--radius);
}
.empty strong { display: block; color: var(--text); margin-bottom: 4px; }
.skeleton {
  border-radius: 8px; background: linear-gradient(90deg, var(--surface-2) 25%, var(--surface-3) 37%, var(--surface-2) 63%);
  background-size: 400% 100%; animation: shimmer 1.4s infinite;
}
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 18px; font-size: 13px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; color: var(--text-2); text-align: right; font-variant-numeric: tabular-nums; }
.tooltip { position: relative; }
.tooltip::after {
  content: attr(data-tip); position: absolute; bottom: calc(100% + 8px); left: 50%;
  transform: translateX(-50%) translateY(4px); opacity: 0; pointer-events: none;
  background: #0a0e17; color: var(--text-2); border: 1px solid var(--line-strong);
  padding: 6px 9px; border-radius: 8px; font: 500 11.5px/1.3 var(--font-sans);
  white-space: nowrap; transition: opacity 0.15s, transform 0.15s; z-index: 60;
}
.tooltip:hover::after { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- toast --------------------------------------------------------- */
.toasts { position: fixed; right: 20px; bottom: 20px; z-index: 100; display: flex; flex-direction: column; gap: 10px; }
.toast {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface-2); border: 1px solid var(--line-strong);
  border-left: 3px solid var(--gold);
  border-radius: 12px; padding: 12px 16px; min-width: 240px;
  box-shadow: 0 20px 50px -20px #000;
  animation: toast-in 0.25s var(--ease);
  font-size: 13px;
}
.toast.ok { border-left-color: var(--green); }
.toast.err { border-left-color: var(--red); }
@keyframes toast-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ---------- modal --------------------------------------------------------- */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 90; display: grid; place-items: center;
  background: rgba(4, 7, 13, 0.72); backdrop-filter: blur(6px); padding: 20px;
}
.modal {
  width: min(560px, 100%); max-height: 86vh; overflow: auto;
  background: var(--surface-2); border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow);
  animation: modal-in 0.2s var(--ease);
}
@keyframes modal-in { from { opacity: 0; transform: translateY(14px) scale(0.98); } to { opacity: 1; transform: none; } }

/* ---------- tabs ---------------------------------------------------------- */
.tabs { display: inline-flex; gap: 2px; padding: 3px; background: rgba(255, 255, 255, 0.03); border: 1px solid var(--line); border-radius: 11px; }
.tab {
  padding: 7px 14px; border-radius: 8px; font-size: 12.5px; font-weight: 600;
  color: var(--muted); cursor: pointer; border: 0; background: transparent;
}
.tab:hover { color: var(--text); }
.tab.active { background: var(--surface-3); color: var(--text); box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset; }

/* ---------- charts -------------------------------------------------------- */
.chart { width: 100%; display: block; overflow: visible; }
.chart .axis { stroke: var(--line); stroke-width: 1; }
.chart .gridline { stroke: var(--line); stroke-width: 1; stroke-dasharray: 3 5; opacity: 0.7; }
.chart .label { fill: var(--muted); font: 500 10px var(--font-sans); }
.chart .series { fill: none; stroke: var(--gold); stroke-width: 2.25; stroke-linecap: round; stroke-linejoin: round; }
.chart .series.blue { stroke: var(--blue); }
.chart .series.green { stroke: var(--green); }
.chart .area { fill: url(#goldFade); }
.chart .point { fill: var(--gold); stroke: var(--bg); stroke-width: 2; }
.bars { display: flex; align-items: flex-end; gap: 6px; height: 130px; }
.bars > i { flex: 1; border-radius: 5px 5px 2px 2px; background: linear-gradient(180deg, var(--gold), rgba(245, 194, 107, 0.25)); min-height: 3px; }
.legend { display: flex; gap: 16px; font-size: 11.5px; color: var(--muted); }
.legend i { width: 8px; height: 8px; border-radius: 2px; display: inline-block; margin-right: 5px; }

/* ---------- code ---------------------------------------------------------- */
pre.code {
  background: #070a11; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; overflow: auto; font-size: 12.5px; line-height: 1.65; color: #c7d2e5;
}
pre.code .tok-k { color: #c792ea; } pre.code .tok-s { color: #a5e3a0; }
pre.code .tok-c { color: #5f6c80; } pre.code .tok-n { color: #f5c26b; }

/* ---------- demo chrome (header used by every project demo) --------------- */
.demo-banner {
  position: fixed; right: 16px; bottom: 16px; z-index: 80;
  display: flex; align-items: center; gap: 10px;
  padding: 8px 14px; border-radius: 999px;
  background: rgba(10, 14, 23, 0.88); border: 1px solid var(--line-strong);
  backdrop-filter: blur(10px); font-size: 12px; color: var(--muted);
  box-shadow: 0 16px 40px -20px #000;
}
.demo-banner a { color: var(--gold); font-weight: 600; }
.demo-banner .sep { width: 1px; height: 14px; background: var(--line-strong); }
/* screenshot mode: the capture script adds ?shot=1 so chrome is hidden */
.shot .demo-banner, .shot .toasts { display: none !important; }

/* ---------- responsive ---------------------------------------------------- */
@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .main { padding: 18px 16px 64px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .page-head { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ============================================================================
   THEMES, each project picks one so the portfolio reads as a studio with a
   range, not thirty copies of one screen. Themes only override tokens plus the
   few components that assume a dark surface; layouts stay project-specific.
   ========================================================================== */

/* paper, warm editorial light, ink text, brick accent */
.theme-paper {
  --bg: #f7f3ea; --bg-soft: #efe8db; --surface: #ffffff; --surface-2: #fbf7ef; --surface-3: #f1e9dc;
  --line: rgba(28, 22, 14, 0.12); --line-strong: rgba(28, 22, 14, 0.22);
  --text: #181410; --text-2: #3b342a; --muted: #736858;
  --gold: #b23a2b; --gold-soft: rgba(178, 58, 43, 0.1); --gold-line: rgba(178, 58, 43, 0.32);
  --blue: #365a7a; --blue-soft: rgba(54, 90, 122, 0.1);
  --green: #2f7d5b; --green-soft: rgba(47, 125, 91, 0.1);
  --red: #a52a1f; --red-soft: rgba(165, 42, 31, 0.1);
  --amber: #a87718; --purple: #6c4b8a;
}
.theme-paper .aurora { background: radial-gradient(760px 440px at 14% -10%, rgba(178, 58, 43, 0.1), transparent 65%), radial-gradient(820px 520px at 88% -12%, rgba(54, 90, 122, 0.1), transparent 68%); }
.theme-paper .grid-lines { background-image: linear-gradient(to right, rgba(28, 22, 14, 0.05) 1px, transparent 1px), linear-gradient(to bottom, rgba(28, 22, 14, 0.05) 1px, transparent 1px); }

/* sand, pale stone light, olive accent (documentation and ops screens) */
.theme-sand {
  --bg: #f2f0e9; --bg-soft: #e9e6dc; --surface: #fbfaf6; --surface-2: #f4f2ea; --surface-3: #e7e3d7;
  --line: rgba(30, 30, 20, 0.12); --line-strong: rgba(30, 30, 20, 0.22);
  --text: #191a14; --text-2: #3c3e32; --muted: #6f7362;
  --gold: #5f6b2a; --gold-soft: rgba(95, 107, 42, 0.1); --gold-line: rgba(95, 107, 42, 0.34);
  --blue: #3f5d66; --blue-soft: rgba(63, 93, 102, 0.1);
  --green: #3f7a4a; --green-soft: rgba(63, 122, 74, 0.1);
  --red: #a4482f; --red-soft: rgba(164, 72, 47, 0.1);
  --amber: #9a7420; --purple: #6a4f86;
}
.theme-sand .aurora { background: radial-gradient(760px 440px at 12% -8%, rgba(95, 107, 42, 0.12), transparent 65%), radial-gradient(820px 520px at 90% -10%, rgba(63, 93, 102, 0.1), transparent 68%); }
.theme-sand .grid-lines { background-image: linear-gradient(to right, rgba(30, 30, 20, 0.05) 1px, transparent 1px), linear-gradient(to bottom, rgba(30, 30, 20, 0.05) 1px, transparent 1px); }

/* ink, strict black and white, light. No hue at all. */
.theme-ink {
  --bg: #ffffff; --bg-soft: #f5f5f5; --surface: #ffffff; --surface-2: #fafafa; --surface-3: #ededed;
  --line: rgba(0, 0, 0, 0.13); --line-strong: rgba(0, 0, 0, 0.26);
  --text: #0a0a0a; --text-2: #2b2b2b; --muted: #6b6b6b;
  --gold: #0a0a0a; --gold-soft: rgba(0, 0, 0, 0.06); --gold-line: rgba(0, 0, 0, 0.3);
  --blue: #0a0a0a; --blue-soft: rgba(0, 0, 0, 0.05);
  --green: #1f1f1f; --green-soft: rgba(0, 0, 0, 0.06);
  --red: #0a0a0a; --red-soft: rgba(0, 0, 0, 0.06);
  --amber: #333333; --purple: #333333;
}
.theme-ink .aurora { background: radial-gradient(760px 440px at 18% -12%, rgba(0, 0, 0, 0.05), transparent 65%); }
.theme-ink .grid-lines { background-image: linear-gradient(to right, rgba(0, 0, 0, 0.05) 1px, transparent 1px), linear-gradient(to bottom, rgba(0, 0, 0, 0.05) 1px, transparent 1px); }

/* noir, strict black and white, dark. The inverse of ink. */
.theme-noir {
  --bg: #050505; --bg-soft: #0b0b0b; --surface: #111111; --surface-2: #161616; --surface-3: #1f1f1f;
  --line: rgba(255, 255, 255, 0.1); --line-strong: rgba(255, 255, 255, 0.22);
  --text: #ffffff; --text-2: #d4d4d4; --muted: #8f8f8f;
  --gold: #ffffff; --gold-soft: rgba(255, 255, 255, 0.08); --gold-line: rgba(255, 255, 255, 0.32);
  --blue: #d4d4d4; --blue-soft: rgba(255, 255, 255, 0.06);
  --green: #e8e8e8; --green-soft: rgba(255, 255, 255, 0.07);
  --red: #ffffff; --red-soft: rgba(255, 255, 255, 0.06);
  --amber: #cfcfcf; --purple: #cfcfcf;
}
.theme-noir .aurora { background: radial-gradient(760px 440px at 20% -12%, rgba(255, 255, 255, 0.05), transparent 65%); }
.theme-noir .grid-lines { opacity: 0.2; }

/* ember, warm dark: charcoal, coral, amber (consumer-facing screens) */
.theme-ember {
  --bg: #150d0a; --bg-soft: #1b110c; --surface: #221511; --surface-2: #291a14; --surface-3: #35221a;
  --line: rgba(255, 226, 200, 0.1); --line-strong: rgba(255, 226, 200, 0.2);
  --text: #fff4ec; --text-2: #eccfbe; --muted: #b08e7c;
  --gold: #ff8a5c; --gold-soft: rgba(255, 138, 92, 0.12); --gold-line: rgba(255, 138, 92, 0.34);
  --blue: #7fb2ff; --blue-soft: rgba(127, 178, 255, 0.12);
  --green: #7fd8a8; --green-soft: rgba(127, 216, 168, 0.12);
  --red: #ff6b6b; --red-soft: rgba(255, 107, 107, 0.12);
  --amber: #ffc46b; --purple: #d6a2ff;
}
.theme-ember .aurora { background: radial-gradient(760px 440px at 10% -10%, rgba(255, 138, 92, 0.16), transparent 65%), radial-gradient(820px 520px at 92% -12%, rgba(214, 130, 60, 0.14), transparent 68%); }

/* ocean, deep teal, mint accent (data and scheduling screens) */
.theme-ocean {
  --bg: #04202a; --bg-soft: #062834; --surface: #072f3d; --surface-2: #0a3847; --surface-3: #0e4556;
  --line: rgba(200, 255, 245, 0.1); --line-strong: rgba(200, 255, 245, 0.22);
  --text: #eafffb; --text-2: #bfe8e2; --muted: #7fb0ad;
  --gold: #63e6b6; --gold-soft: rgba(99, 230, 182, 0.12); --gold-line: rgba(99, 230, 182, 0.34);
  --blue: #5cb8ff; --blue-soft: rgba(92, 184, 255, 0.12);
  --green: #63e6b6; --green-soft: rgba(99, 230, 182, 0.12);
  --red: #ff7b7b; --red-soft: rgba(255, 123, 123, 0.12);
  --amber: #ffd166; --purple: #b79bff;
}
.theme-ocean .aurora { background: radial-gradient(760px 440px at 12% -10%, rgba(99, 230, 182, 0.14), transparent 65%), radial-gradient(820px 520px at 90% -12%, rgba(92, 184, 255, 0.12), transparent 68%); }

/* forest, dark green, lime accent (infrastructure screens) */
.theme-forest {
  --bg: #07160f; --bg-soft: #0a1e14; --surface: #0c2418; --surface-2: #102b1d; --surface-3: #153723;
  --line: rgba(220, 255, 230, 0.1); --line-strong: rgba(220, 255, 230, 0.2);
  --text: #f0fff4; --text-2: #c9e6cf; --muted: #86a892;
  --gold: #b6f36b; --gold-soft: rgba(182, 243, 107, 0.12); --gold-line: rgba(182, 243, 107, 0.34);
  --blue: #5eead4; --blue-soft: rgba(94, 234, 212, 0.12);
  --green: #b6f36b; --green-soft: rgba(182, 243, 107, 0.12);
  --red: #ff8f8f; --red-soft: rgba(255, 143, 143, 0.12);
  --amber: #ffd166; --purple: #c4b5fd;
}
.theme-forest .aurora { background: radial-gradient(760px 440px at 10% -10%, rgba(182, 243, 107, 0.12), transparent 65%), radial-gradient(820px 520px at 92% -12%, rgba(94, 234, 212, 0.1), transparent 68%); }

/* violet, near-black purple, lilac accent (AI and developer tools) */
.theme-violet {
  --bg: #100a1c; --bg-soft: #150e24; --surface: #1a1230; --surface-2: #201639; --surface-3: #2b1e4a;
  --line: rgba(240, 225, 255, 0.1); --line-strong: rgba(240, 225, 255, 0.2);
  --text: #fbf7ff; --text-2: #ded0f2; --muted: #a292bd;
  --gold: #b28bff; --gold-soft: rgba(178, 139, 255, 0.13); --gold-line: rgba(178, 139, 255, 0.36);
  --blue: #ff7ac6; --blue-soft: rgba(255, 122, 198, 0.12);
  --green: #4ade80; --green-soft: rgba(74, 222, 128, 0.12);
  --red: #ff8080; --red-soft: rgba(255, 128, 128, 0.12);
  --amber: #ffd166; --purple: #b28bff;
}
.theme-violet .aurora { background: radial-gradient(760px 440px at 10% -10%, rgba(178, 139, 255, 0.16), transparent 65%), radial-gradient(820px 520px at 92% -12%, rgba(255, 122, 198, 0.12), transparent 68%); }

/* ---- components that assume a dark page ------------------------------- */
.theme-paper .sidebar, .theme-sand .sidebar, .theme-ink .sidebar {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.65), rgba(246, 243, 236, 0.4));
}
.theme-paper .nav-item:hover, .theme-sand .nav-item:hover, .theme-ink .nav-item:hover { background: rgba(0, 0, 0, 0.045); }
.theme-paper .btn:hover, .theme-sand .btn:hover, .theme-ink .btn:hover { background: rgba(0, 0, 0, 0.05); }
.theme-paper .btn.primary, .theme-sand .btn.primary, .theme-ink .btn.primary {
  --btn-bg: linear-gradient(180deg, #c9503e, #a53526); --btn-fg: #fff; --btn-bd: #8d2a1e;
  box-shadow: 0 10px 24px -14px rgba(178, 58, 43, 0.6);
}
.theme-sand .btn.primary { --btn-bg: linear-gradient(180deg, #6d7a33, #55611f); --btn-bd: #48521a; }
.theme-ink .btn.primary { --btn-bg: #0a0a0a; --btn-fg: #fff; --btn-bd: #000; box-shadow: none; }
.theme-paper .input, .theme-sand .input, .theme-ink .input,
.theme-paper .select, .theme-sand .select, .theme-ink .select,
.theme-paper .textarea, .theme-sand .textarea, .theme-ink .textarea {
  background: rgba(255, 255, 255, 0.85); color: var(--text); border-color: var(--line-strong);
}
.theme-paper .input::placeholder, .theme-sand .input::placeholder, .theme-ink .input::placeholder { color: #9a927f; }
.theme-paper .badge, .theme-sand .badge, .theme-ink .badge { background: rgba(0, 0, 0, 0.035); }
.theme-paper .tabs, .theme-sand .tabs, .theme-ink .tabs { background: rgba(0, 0, 0, 0.04); }
.theme-paper .tab.active, .theme-sand .tab.active, .theme-ink .tab.active { background: #fff; color: var(--text); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08); }
.theme-paper .demo-banner, .theme-sand .demo-banner, .theme-ink .demo-banner {
  background: rgba(255, 255, 255, 0.92); border-color: var(--line-strong); color: var(--muted);
}
.theme-paper .avatar, .theme-sand .avatar, .theme-ink .avatar { color: #fff; }
.theme-paper .topbar, .theme-sand .topbar, .theme-ink .topbar { background: color-mix(in srgb, var(--bg) 82%, transparent); }
.theme-paper pre.code, .theme-sand pre.code, .theme-ink pre.code { background: #f4f1ea; color: #2a251c; border-color: var(--line-strong); }
.theme-paper kbd, .theme-sand kbd, .theme-ink kbd { background: #fff; }

/* citrus, light cream with orange (commerce screens) */
.theme-citrus {
  --bg: #fff8ee; --bg-soft: #ffefd9; --surface: #ffffff; --surface-2: #fffaf2; --surface-3: #ffedd6;
  --line: rgba(60, 35, 10, 0.12); --line-strong: rgba(60, 35, 10, 0.22);
  --text: #201408; --text-2: #43301c; --muted: #866b4f;
  --gold: #d9631e; --gold-soft: rgba(217, 99, 30, 0.1); --gold-line: rgba(217, 99, 30, 0.32);
  --blue: #1f6f6b; --blue-soft: rgba(31, 111, 107, 0.1);
  --green: #2f7d4f; --green-soft: rgba(47, 125, 79, 0.1);
  --red: #b3311f; --red-soft: rgba(179, 49, 31, 0.1);
  --amber: #a87718; --purple: #7a4b8a;
}
.theme-citrus .aurora { background: radial-gradient(760px 440px at 12% -10%, rgba(217, 99, 30, 0.14), transparent 65%), radial-gradient(820px 520px at 90% -12%, rgba(31, 111, 107, 0.1), transparent 68%); }
.theme-citrus .grid-lines { background-image: linear-gradient(to right, rgba(60,35,10,.05) 1px, transparent 1px), linear-gradient(to bottom, rgba(60,35,10,.05) 1px, transparent 1px); }
.theme-citrus .sidebar { background: linear-gradient(180deg, rgba(255,255,255,.7), rgba(255,244,228,.5)); }
.theme-citrus .nav-item:hover, .theme-citrus .btn:hover { background: rgba(0,0,0,.045); }
.theme-citrus .btn.primary { --btn-bg: linear-gradient(180deg, #f07a2e, #d9631e); --btn-fg: #fff; --btn-bd: #b84f13; box-shadow: 0 10px 24px -14px rgba(217,99,30,.55); }
.theme-citrus .input, .theme-citrus .select, .theme-citrus .textarea { background: #fff; color: var(--text); }
.theme-citrus .badge { background: rgba(0,0,0,.035); }
.theme-citrus .tabs { background: rgba(0,0,0,.04); } .theme-citrus .tab.active { background: #fff; color: var(--text); }
.theme-citrus .demo-banner { background: rgba(255,255,255,.93); border-color: var(--line-strong); color: var(--muted); }
.theme-citrus pre.code { background: #fff4e5; color: #3a2712; }

/* azure, light blue-grey with cobalt (support and data screens) */
.theme-azure {
  --bg: #f2f6fb; --bg-soft: #e7eef8; --surface: #ffffff; --surface-2: #f7fafe; --surface-3: #e9f0f9;
  --line: rgba(17, 34, 58, 0.12); --line-strong: rgba(17, 34, 58, 0.22);
  --text: #0d1a2b; --text-2: #2c3f57; --muted: #5f7389;
  --gold: #1f5fbf; --gold-soft: rgba(31, 95, 191, 0.1); --gold-line: rgba(31, 95, 191, 0.3);
  --blue: #0f766e; --blue-soft: rgba(15, 118, 110, 0.1);
  --green: #1a7f5a; --green-soft: rgba(26, 127, 90, 0.1);
  --red: #b33636; --red-soft: rgba(179, 54, 54, 0.1);
  --amber: #9a6b12; --purple: #6d4ea8;
}
.theme-azure .aurora { background: radial-gradient(760px 440px at 14% -10%, rgba(31, 95, 191, 0.12), transparent 65%), radial-gradient(820px 520px at 90% -12%, rgba(15, 118, 110, 0.1), transparent 68%); }
.theme-azure .grid-lines { background-image: linear-gradient(to right, rgba(17,34,58,.05) 1px, transparent 1px), linear-gradient(to bottom, rgba(17,34,58,.05) 1px, transparent 1px); }
.theme-azure .sidebar { background: linear-gradient(180deg, rgba(255,255,255,.7), rgba(235,242,251,.5)); }
.theme-azure .nav-item:hover, .theme-azure .btn:hover { background: rgba(0,0,0,.045); }
.theme-azure .btn.primary { --btn-bg: linear-gradient(180deg, #2f74d6, #1f5fbf); --btn-fg: #fff; --btn-bd: #174a96; box-shadow: 0 10px 24px -14px rgba(31,95,191,.55); }
.theme-azure .input, .theme-azure .select, .theme-azure .textarea { background: #fff; color: var(--text); }
.theme-azure .badge { background: rgba(0,0,0,.035); }
.theme-azure .tabs { background: rgba(0,0,0,.04); } .theme-azure .tab.active { background: #fff; color: var(--text); }
.theme-azure .demo-banner { background: rgba(255,255,255,.93); border-color: var(--line-strong); color: var(--muted); }
.theme-azure pre.code { background: #eef4fc; color: #23324a; }