/* ════════════════════════════════════════════════════════════════
   LexIQ V2 · Legal Intelligence Command Center
   Core tokens · base · nav · hero · primitives
   ════════════════════════════════════════════════════════════════ */

:root {
  /* Deep space surfaces */
  --space-0: #050816;
  --space-1: #0a1020;
  --space-2: #0f172a;
  --space-3: #131c30;
  --surf:    #18233c;
  --surf-2:  #1e293b;

  /* Accents */
  --cyan:   #38bdf8;
  --cyan-2: #22d3ee;
  --gold:   #eab308;
  --gold-2: #f5d061;

  /* Text */
  --white:   #ffffff;
  --ink-1:   #e9eef7;
  --ink-2:   #cbd5e1;
  --ink-3:   #94a3b8;
  --ink-4:   #64748b;
  --ink-5:   #475569;

  /* Lines / glows */
  --line:     rgba(148,163,184,.10);
  --line-2:   rgba(148,163,184,.18);
  --line-cy:  rgba(56,189,248,.28);
  --glow-cy:  rgba(56,189,248,.45);
  --glow-go:  rgba(234,179,8,.40);

  /* Accent driver (switched by Tweaks via [data-accent]) */
  --accent:    var(--cyan);
  --accent-2:  var(--cyan-2);
  --accent-rgb: 56,189,248;
  --accent-soft: rgba(56,189,248,.12);

  /* Depth driver (Tweaks) */
  --depth: 1;

  /* Surface tokens (themeable) */
  --card-bg:    linear-gradient(180deg, rgba(30,41,59,.42), rgba(15,23,42,.30));
  --card-hover: linear-gradient(110deg, rgba(var(--accent-rgb),.12), rgba(15,23,42,.32));
  --item-bg:    rgba(30,41,59,.30);
  --chip-bg:    rgba(148,163,184,.06);
  --nav-bg:     rgba(5,8,22,.72);
  --nav-solid:  rgba(5,8,22,.97);
  --panel-bg:   linear-gradient(180deg, rgba(10,16,32,.97), rgba(7,11,24,.99));
  --menu-bg:    rgba(15,23,42,.96);
  --card-shadow: none;

  --font-display: 'Geist','Inter',system-ui,sans-serif;
  --font-body:    'Inter',system-ui,-apple-system,sans-serif;
  --font-mono:    'JetBrains Mono',ui-monospace,monospace;
}

/* ── Display font (Tweaks via [data-font]) ───────────── */
[data-font="space"] { --font-display: 'Space Grotesk','Inter',system-ui,sans-serif; }
[data-font="sora"]  { --font-display: 'Sora','Inter',system-ui,sans-serif; }

/* ── Section density (Tweaks: show/hide optional sections) ── */
[data-sec-demo="off"] #demo,
[data-sec-agents="off"] #agents,
[data-sec-juris="off"] #jurisdictions,
[data-sec-philo="off"] .philosophy { display: none; }

:root {
  --r-sm: 8px;  --r: 12px;  --r-lg: 18px;  --r-xl: 26px;
  --maxw: 1280px;
  --nav-h: 68px;

  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
}

[data-accent="trust"] {
  --accent: #f0bd3a; --accent-2: var(--gold); --accent-rgb: 240,189,58;
  --accent-soft: rgba(234,179,8,.12);
  --line-cy: rgba(234,179,8,.30); --glow-cy: rgba(234,179,8,.4);
}
[data-accent="mixed"] {
  --accent: #5ad0f5; --accent-2: var(--gold); --accent-rgb: 90,208,245;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* ── Background moods (corporate, dark) ─────────────── */
:root[data-bg="obsidian"]:not([data-theme="light"]) {
  --space-0:#0a0b0f; --space-1:#101218; --space-2:#15171f; --space-3:#0d0f15;
  --surf:#171a22; --surf-2:#1d212b;
  --card-bg: linear-gradient(180deg, rgba(26,29,38,.55), rgba(15,17,22,.42));
  --card-hover: linear-gradient(110deg, rgba(var(--accent-rgb),.10), rgba(15,17,22,.5));
  --item-bg: rgba(24,27,35,.5);
  --panel-bg: linear-gradient(180deg, rgba(16,18,24,.97), rgba(11,12,17,.99));
  --menu-bg: rgba(18,20,27,.97);
  --nav-bg: rgba(10,11,15,.72); --nav-solid: rgba(10,11,15,.98);
  --line: rgba(148,163,184,.09); --line-2: rgba(148,163,184,.15);
}
:root[data-bg="graphite"]:not([data-theme="light"]) {
  --space-0:#0c111a; --space-1:#121826; --space-2:#172033; --space-3:#0f1420;
  --surf:#1a2436; --surf-2:#1f2a3f;
}
/* deep space = legacy expressive values from :root */

body {
  background: var(--space-0) !important;
  color: var(--ink-2);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  letter-spacing: -0.003em;
}

/* Ambient field — restrained by default (obsidian) */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1300px 820px at 50% -16%, rgba(var(--accent-rgb), calc(.07 * var(--depth))), transparent 62%),
    radial-gradient(1000px 700px at 88% 8%, rgba(var(--accent-rgb), calc(.04 * var(--depth))), transparent 60%),
    linear-gradient(180deg, #0c0e14, var(--space-0) 42%, #08090d);
}
:root[data-bg="graphite"] body::before {
  background:
    radial-gradient(1300px 820px at 50% -14%, rgba(var(--accent-rgb), calc(.10 * var(--depth))), transparent 60%),
    radial-gradient(1000px 700px at 10% 10%, rgba(34,211,238, calc(.05 * var(--depth))), transparent 58%),
    linear-gradient(180deg, #10182a, var(--space-0) 44%, #0a0e18);
}
:root[data-bg="space"] body::before {
  background:
    radial-gradient(1100px 700px at 78% -8%, rgba(var(--accent-rgb), calc(.16 * var(--depth))), transparent 60%),
    radial-gradient(900px 600px at 8% 12%, rgba(34,211,238, calc(.08 * var(--depth))), transparent 55%),
    radial-gradient(1200px 900px at 50% 120%, rgba(234,179,8, calc(.05 * var(--depth))), transparent 60%),
    linear-gradient(180deg, #070c1c, #050816 42%, #04060f);
}
[data-theme="light"] body::before {
  background:
    radial-gradient(1100px 700px at 80% -10%, rgba(var(--accent-rgb), calc(.10 * var(--depth))), transparent 60%),
    radial-gradient(900px 600px at 6% 10%, rgba(34,211,238, calc(.05 * var(--depth))), transparent 55%),
    var(--space-0) !important;
}
/* Film grain + fine engineering grid */
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScyMDAnIGhlaWdodD0nMjAwJz48ZmlsdGVyIGlkPSduJz48ZmVUdXJidWxlbmNlIHR5cGU9J2ZyYWN0YWxOb2lzZScgYmFzZUZyZXF1ZW5jeT0nMC45JyBudW1PY3RhdmVzPScyJyBzdGl0Y2hUaWxlcz0nc3RpdGNoJy8+PC9maWx0ZXI+PHJlY3Qgd2lkdGg9JzIwMCcgaGVpZ2h0PScyMDAnIGZpbHRlcj0ndXJsKCNuKScgb3BhY2l0eT0nMC41NScvPjwvc3ZnPg=="),
    linear-gradient(rgba(148,163,184,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,163,184,.028) 1px, transparent 1px);
  background-size: 200px 200px, 72px 72px, 72px 72px;
  mask-image: radial-gradient(ellipse 120% 90% at 50% 16%, #000 38%, transparent 88%);
  opacity: calc(.5 * var(--depth));
  mix-blend-mode: overlay;
}
[data-theme="light"] body::after { mix-blend-mode: normal; opacity: calc(.32 * var(--depth)); }

h1,h2,h3,h4 { font-family: var(--font-display); color: var(--white); font-weight: 600; line-height: 1.08; letter-spacing: -0.02em; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
::selection { background: rgba(var(--accent-rgb), .3); color: var(--white); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }
.mono { font-family: var(--font-mono); }

/* ── Kicker ─────────────────────────────────────────── */
.kicker {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent);
}
.kicker .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 10px var(--glow-cy); animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(.7)} }

/* ── Buttons ────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-display); font-weight: 500; font-size: 15px;
  padding: 13px 22px; border-radius: var(--r); cursor: pointer;
  border: 1px solid transparent; transition: all .25s var(--ease); position: relative;
  letter-spacing: -0.01em; white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-accent {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  color: #04111e; font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.18), 0 1px 2px rgba(0,0,0,.38);
}
.btn-accent:hover { transform: translateY(-1px); box-shadow: inset 0 1px 0 rgba(255,255,255,.22), 0 6px 16px rgba(0,0,0,.42); }
.btn-accent:active { transform: translateY(0); box-shadow: inset 0 1px 0 rgba(255,255,255,.12), 0 1px 2px rgba(0,0,0,.4); }
.btn-ghost {
  background: var(--chip-bg); color: var(--ink-1);
  border-color: var(--line-2);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--white); background: rgba(var(--accent-rgb),.08); }

/* ── Nav ────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200; height: var(--nav-h);
  display: flex; align-items: center;
  transition: background .35s var(--ease), border-color .35s, backdrop-filter .35s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: var(--nav-bg); backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-bottom-color: var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; gap: 24px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-display); font-size: 21px; font-weight: 600; color: var(--white); letter-spacing: -0.02em; }
.brand .glyph {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(150deg, rgba(var(--accent-rgb),.22), rgba(234,179,8,.14));
  border: 1px solid var(--line-cy); color: var(--accent);
  font-weight: 700; box-shadow: inset 0 1px 0 rgba(255,255,255,.1);
}
.brand .glyph.eye-mark svg { width: 24px; height: 24px; }
.brand .iq { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  font-size: 14px; color: var(--ink-3); padding: 8px 9px; border-radius: 8px; white-space: nowrap;
  transition: color .2s, background .2s; font-weight: 450;
}
.nav-links a:hover { color: var(--white); background: var(--chip-bg); }
.nav-right { display: flex; align-items: center; gap: 10px; }

.lang {
  display: flex; align-items: center; gap: 6px; font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .04em; color: var(--ink-2);
  background: var(--chip-bg); border: 1px solid var(--line-2);
  padding: 8px 11px; border-radius: 9px; cursor: pointer; transition: all .2s;
  position: relative;
}
.lang:hover { border-color: var(--line-cy); color: var(--white); }
.lang svg { width: 12px; height: 12px; }
.lang-menu {
  position: absolute; top: calc(100% + 8px); right: 0; min-width: 150px;
  background: var(--menu-bg); backdrop-filter: blur(20px);
  border: 1px solid var(--line-2); border-radius: var(--r); padding: 6px;
  display: none; flex-direction: column; gap: 2px; z-index: 50;
  box-shadow: 0 18px 50px rgba(0,0,0,.5);
}
.lang-menu.open { display: flex; }
.lang-menu button {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: none; border: 0; color: var(--ink-2); font-family: var(--font-body);
  font-size: 13px; padding: 9px 11px; border-radius: 8px; cursor: pointer; text-align: left;
}
.lang-menu button:hover { background: rgba(148,163,184,.08); color: var(--white); }
.lang-menu button.active { color: var(--accent); }
.lang-menu button .fl { font-family: var(--font-mono); font-size: 11px; color: var(--ink-4); }

.icon-btn {
  display: none; width: 40px; height: 40px; border-radius: 9px; background: var(--chip-bg);
  border: 1px solid var(--line-2); color: var(--ink-1); cursor: pointer; place-items: center;
}
.icon-btn svg { width: 20px; height: 20px; }

/* ── Section scaffold ───────────────────────────────── */
.section { position: relative; padding: 120px 0; }
.section-sm { padding: 84px 0; }
.sec-head { max-width: 760px; margin-bottom: 60px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head h2 {
  font-size: clamp(32px, 4.4vw, 56px); margin-top: 20px; letter-spacing: -0.03em;
}
.sec-head .lede { margin-top: 20px; font-size: 18px; color: var(--ink-3); line-height: 1.6; text-wrap: pretty; }
.eyebrow-line { display: flex; align-items: center; gap: 16px; }
.eyebrow-line::after { content: ""; height: 1px; flex: 1; background: linear-gradient(90deg, var(--line-2), transparent); }

/* glass card base */
.glass {
  background: var(--card-bg);
  border: 1px solid var(--line-2); border-radius: var(--r-lg);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}

/* ── Reveal ─────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }
.reveal[data-d="4"] { transition-delay: .32s; }
.reveal[data-d="5"] { transition-delay: .4s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ════════════════════════════════════════════════════
   HERO
   ════════════════════════════════════════════════════ */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: calc(var(--nav-h) + 40px) 0 60px; overflow: hidden; }
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; display: none; }
.hero-img-veil { position: absolute; inset: 0; z-index: 1; pointer-events: none; display: none;
  background: linear-gradient(180deg, rgba(8,9,13,.5), rgba(8,9,13,.3) 50%, var(--space-0)),
              radial-gradient(60% 60% at 30% 45%, transparent, rgba(8,9,13,.5) 92%); }
[data-heroimg="on"] .hero-img, [data-heroimg="on"] .hero-img-veil { display: block; }
[data-heroimg="on"] #hero-canvas { opacity: .45; }
.hero-veil { position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(60% 50% at 30% 45%, transparent, var(--space-0) 92%),
              linear-gradient(180deg, transparent 60%, var(--space-0)); }
.hero .wrap { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }

.hero-pills { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 26px; }
.pill {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .06em;
  color: var(--ink-2); background: var(--chip-bg);
  border: 1px solid var(--line-2); padding: 6px 12px; border-radius: 999px;
  display: inline-flex; align-items: center; gap: 7px;
}
.pill .d { color: var(--accent); font-size: 8px; }
.hero h1 {
  font-size: clamp(40px, 6vw, 78px); letter-spacing: -0.035em; line-height: 1.02;
  color: var(--white); text-wrap: balance;
}
.hero h1 em { font-style: normal; color: var(--accent); position: relative; }
.hero .sub { margin-top: 24px; font-size: clamp(17px,1.5vw,21px); color: var(--ink-2); max-width: 540px; line-height: 1.55; text-wrap: pretty; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero-meta { display: flex; gap: 30px; margin-top: 44px; flex-wrap: wrap; }
.hero-meta .m { display: flex; flex-direction: column; gap: 3px; }
.hero-meta .m b { font-family: var(--font-display); color: var(--white); font-size: 15px; font-weight: 600; }
.hero-meta .m span { font-size: 13px; color: var(--ink-4); }
.hero-meta .m { border-left: 2px solid var(--line-cy); padding-left: 14px; }

/* scroll indicator */
.scroll-ind { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: 9px; color: var(--ink-4);
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .2em; text-transform: uppercase; }
.scroll-ind .mouse { width: 22px; height: 34px; border: 1.5px solid var(--line-2); border-radius: 12px; position: relative; }
.scroll-ind .mouse::after { content:""; position: absolute; top: 6px; left: 50%; width: 3px; height: 6px; border-radius: 2px;
  background: var(--accent); transform: translateX(-50%); animation: scrolldot 1.8s var(--ease) infinite; }
@keyframes scrolldot { 0%{opacity:0;transform:translate(-50%,0)} 30%{opacity:1} 60%{opacity:1;transform:translate(-50%,10px)} 100%{opacity:0;transform:translate(-50%,12px)} }

/* live agent mini-panel in hero */
.hero-live { position: relative; }

/* ── Eye of Legal Intelligence ──────────────────────── */
.hero-eye {
  position: relative; aspect-ratio: 1; width: 100%; max-width: 520px; margin: 0 auto;
  display: grid; place-items: center;
}
#eye-canvas { width: 100%; height: 100%; }
.eye-ring-label {
  position: absolute; top: 4%; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .28em; text-transform: uppercase;
  color: var(--ink-4); white-space: nowrap;
}
.eye-chip {
  position: absolute; display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-1);
  background: var(--menu-bg); border: 1px solid var(--line-2); padding: 7px 11px; border-radius: 9px;
  backdrop-filter: blur(8px); box-shadow: 0 8px 24px rgba(0,0,0,.35);
}
.eye-chip svg { width: 13px; height: 13px; color: var(--accent-2); }
.eye-chip .ed { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--glow-cy); animation: pulse 1.6s infinite; }
.eye-chip.c1 { top: 22%; left: -6%; }
.eye-chip.c2 { bottom: 26%; right: -8%; opacity: 0; transform: translateX(8px) scale(.96); transition: opacity .3s, transform .3s; }
.eye-chip.c2 svg { color: var(--gold-2); }
.eye-chip.c2.show { opacity: 1; transform: none; }
.eye-readout {
  position: absolute; bottom: 6%; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 1px;
  padding: 9px 18px; border-radius: 11px; background: var(--menu-bg);
  border: 1px solid var(--line-2); backdrop-filter: blur(8px); box-shadow: 0 10px 30px rgba(0,0,0,.4);
}
.eye-readout .er-k { font-family: var(--font-mono); font-size: 9px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-4); }
.eye-readout .er-v { font-family: var(--font-display); font-weight: 600; font-size: 22px; color: var(--gold-2); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
@media (max-width: 1080px) {
  .hero-eye { max-width: 400px; margin-top: 12px; }
  .eye-chip.c1 { left: 0; } .eye-chip.c2 { right: 0; }
}

/* ════════════════════════════════════════════════════
   LIGHT THEME
   ════════════════════════════════════════════════════ */
[data-theme="light"] {
  /* Warm professional grays — never pure white */
  --space-0: #eceae4; --space-1: #faf8f4; --space-2: #f3f0ea; --space-3: #e6e2da;
  --surf: #faf8f4; --surf-2: #e2ddd3;
  --white: #1b2230;
  --ink-1: #232b3a; --ink-2: #41495a; --ink-3: #5d6678; --ink-4: #828b9c; --ink-5: #a3abb9;
  --line: rgba(40,33,24,.12); --line-2: rgba(40,33,24,.16);
  /* deepen accent so cyan stays legible on light */
  --accent: #0e86c0; --accent-2: #0a9fb8; --accent-rgb: 14,134,192;
  /* deepen gold/amber too — the bright tokens vanish on the cream surface.
     #8a5d04 holds ~4.7:1 on the light bg (AA for text & icons). */
  --gold: #7a5203; --gold-2: #8a5d04;
  --line-cy: rgba(14,134,192,.30); --glow-cy: rgba(14,134,192,.38);
  --card-bg:    linear-gradient(180deg, #fbf9f5, #f4f1ea);
  --card-hover: linear-gradient(110deg, rgba(var(--accent-rgb),.09), #fbf9f5);
  --item-bg:    #faf8f4;
  --chip-bg:    rgba(40,33,24,.05);
  --nav-bg:     rgba(236,234,228,.82);
  --nav-solid:  rgba(250,248,244,.98);
  --panel-bg:   linear-gradient(180deg, #faf8f4, #f1ede6);
  --menu-bg:    #faf8f4;
  --card-shadow: 0 2px 18px rgba(40,33,24,.08);
}
[data-theme="light"][data-accent="trust"] { --accent: #b8860b; --accent-2: #caa12e; --accent-rgb: 184,134,11; }
[data-theme="light"] body::before {
  background:
    radial-gradient(1100px 700px at 80% -10%, rgba(var(--accent-rgb), calc(.08 * var(--depth))), transparent 60%),
    radial-gradient(900px 600px at 6% 10%, rgba(14,134,192, calc(.04 * var(--depth))), transparent 55%),
    linear-gradient(180deg, #f1efe9, #eceae4 45%, #e7e4dc) !important;
}
[data-theme="light"] body::after {
  background-image:
    linear-gradient(rgba(15,23,42,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,.04) 1px, transparent 1px);
}
[data-theme="light"] .glass,
[data-theme="light"] .pillar,
[data-theme="light"] .agent-card,
[data-theme="light"] .arch-layer,
[data-theme="light"] .bsc-card,
[data-theme="light"] .juris-item,
[data-theme="light"] .a11y-item { box-shadow: var(--card-shadow); }
[data-theme="light"] .cmd-frame,
[data-theme="light"] .demo-shell { box-shadow: 0 28px 70px rgba(15,23,42,.12); }
[data-theme="light"] .btn-accent { background: var(--accent); color: #ffffff; box-shadow: 0 1px 2px rgba(16,24,40,.10), 0 1px 3px rgba(16,24,40,.07); }
[data-theme="light"] .btn-accent:hover { background: var(--accent); filter: brightness(.94); box-shadow: 0 3px 8px rgba(16,24,40,.13); }
[data-theme="light"] .btn-accent:active { filter: brightness(.89); box-shadow: 0 1px 2px rgba(16,24,40,.12); }
[data-theme="light"] .gauge svg circle:first-child { stroke: rgba(15,23,42,.10); }

/* Theme transition */
body, .nav, .glass, .pillar, .agent-card, .arch-layer, .bsc-card, .metric,
.trust-cell, .juris-item, .a11y-item, .cmd-inner, .demo-win, .lang, .btn, .pill {
  transition: background-color .45s var(--ease), color .35s var(--ease), border-color .35s var(--ease), box-shadow .45s var(--ease);
}

/* Theme toggle button */
.theme-btn { display: grid; }
.theme-btn .i-moon { display: none; }
[data-theme="light"] .theme-btn .i-sun { display: none; }
[data-theme="light"] .theme-btn .i-moon { display: block; }

/* ── Keyboard focus (WCAG 2.4.7) ──────────────────────────────────
   Mouse clicks stay clean; keyboard users get a clear accent ring. */
:focus { outline: none; }
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible,
input:focus-visible,
.btn:focus-visible,
.lang:focus-visible,
.icon-btn:focus-visible,
.chip:focus-visible,
.demo-chip:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--r-sm);
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), .25);
}
/* Skip-link: visually hidden until focused */
.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 999;
  padding: 10px 16px; border-radius: var(--r-sm);
  background: var(--accent); color: #04141f; font: 600 14px/1 var(--font-body);
  transform: translateY(-200%); transition: transform .2s var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); outline: none; }

.lang, #langLabel { white-space: nowrap; }

/* Logotipo por tema: el tagline del logo es oscuro; se conmuta la variante */
.ft-logo-light{display:none}
[data-theme="light"] .ft-logo-dark{display:none}
[data-theme="light"] .ft-logo-light{display:inline-block}