/* ============================================================
   AURA Design System v2 — "Celestial"          (Wave 0, Jul 2026)
   Shared tokens + primitives for the 13-app redesign.
   Base philosophy: deep-space canvas, one accent gradient per
   app (set --a1/--a2 on <body>), glass surfaces, cinematic type.
   ============================================================ */

:root {
  /* Canvas */
  --bg-0: #050508;
  --bg-1: #0a0a12;
  --bg-2: #101019;
  /* Ink */
  --ink-hi: #f4f4f8;
  --ink-mid: rgba(238, 238, 248, 0.72);
  --ink-low: rgba(228, 228, 244, 0.45);
  /* Default accent (overridden per app on body) */
  --a1: #8b5cf6;
  --a2: #38bdf8;
  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.045);
  --glass-brd: rgba(255, 255, 255, 0.09);
  --glass-hi: rgba(255, 255, 255, 0.16);
  /* Type scale (fluid) */
  --t-hero: clamp(2.8rem, 7.5vw, 6.5rem);
  --t-h1: clamp(2rem, 4.5vw, 3.4rem);
  --t-h2: clamp(1.4rem, 2.6vw, 2rem);
  --t-body: clamp(1rem, 1.15vw, 1.125rem);
  --t-small: 0.85rem;
  /* Rhythm */
  --sp-1: 0.5rem; --sp-2: 1rem; --sp-3: 1.75rem; --sp-4: 3rem; --sp-5: 5.5rem;
  --radius: 20px;
  --radius-lg: 28px;
  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur: 0.7s;
}

/* Per-app accent presets — set class on <body> */
.app-synapse    { --a1:#38bdf8; --a2:#818cf8; }
.app-harmony    { --a1:#f59e0b; --a2:#fb7185; }
.app-transcribe { --a1:#22d3ee; --a2:#3b82f6; }
.app-transcribe-m{--a1:#2dd4bf; --a2:#0ea5e9; }
.app-stock      { --a1:#fb923c; --a2:#f472b6; }
.app-bookeditor { --a1:#fde68a; --a2:#d97706; }
.app-astrolabe  { --a1:#a78bfa; --a2:#6366f1; }
.app-market     { --a1:#34d399; --a2:#059669; }
.app-wealth     { --a1:#fbbf24; --a2:#10b981; }
.app-nest       { --a1:#c4b5fd; --a2:#fda4af; }
.app-wellness   { --a1:#6ee7b7; --a2:#7dd3fc; }
.app-vibe       { --a1:#f9a8d4; --a2:#c084fc; }
.app-cosmic     { --a1:#e879f9; --a2:#fb923c; }
.app-genesis    { --a1:#6ee7b7; --a2:#8b5cf6; }

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-0);
  color: var(--ink-hi);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: var(--t-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: color-mix(in oklab, var(--a1) 60%, transparent); color: #fff; }

h1, h2, h3, .display {
  font-family: "Fraunces", "Instrument Serif", Georgia, serif;
  font-weight: 550;
  letter-spacing: -0.02em;
  line-height: 1.06;
  margin: 0 0 var(--sp-2);
}
h1 { font-size: var(--t-h1); }
h2 { font-size: var(--t-h2); }
p  { color: var(--ink-mid); margin: 0 0 var(--sp-2); }
a  { color: inherit; }

/* ---------- Signature gradient text ---------- */
.grad {
  background: linear-gradient(100deg, var(--a1), var(--a2) 60%, var(--a1));
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  animation: grad-drift 9s ease-in-out infinite;
}
@keyframes grad-drift { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

/* ---------- FX canvas (aura-fx.js mounts here) ---------- */
#aura-fx {
  position: fixed; inset: 0; z-index: -1;
  width: 100%; height: 100%;
  background:
    radial-gradient(1100px 700px at 75% -10%, color-mix(in oklab, var(--a1) 16%, transparent), transparent 60%),
    radial-gradient(900px 600px at 12% 110%, color-mix(in oklab, var(--a2) 13%, transparent), transparent 60%),
    var(--bg-0); /* CSS fallback if WebGL unavailable */
}

/* ---------- Layout ---------- */
.wrap { width: min(1180px, 92vw); margin-inline: auto; }
.section { padding-block: var(--sp-5); position: relative; }
.hero {
  min-height: 92vh;
  display: grid; place-content: center; text-align: center;
  padding-block: var(--sp-5);
}
.hero .display { font-size: var(--t-hero); }
.kicker {
  font-family: "Inter", sans-serif;
  font-size: var(--t-small);
  font-weight: 600;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--ink-low);
  margin-bottom: var(--sp-2);
}

/* ---------- Glass surfaces v2 ---------- */
.glass {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-brd);
  border-radius: var(--radius);
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  transition: border-color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out),
              box-shadow var(--dur) var(--ease-out);
}
.glass::before { /* top light edge */
  content: ""; position: absolute; inset: 0 0 auto 0; height: 1px;
  border-radius: inherit;
  background: linear-gradient(90deg, transparent, var(--glass-hi), transparent);
  pointer-events: none;
}
.glass:hover {
  border-color: color-mix(in oklab, var(--a1) 45%, var(--glass-brd));
  box-shadow: 0 24px 70px -30px color-mix(in oklab, var(--a1) 45%, transparent);
}

/* ---------- Cards ---------- */
.card-grid {
  display: grid; gap: var(--sp-2);
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.card {
  padding: var(--sp-3);
  text-decoration: none; display: block;
  transform-style: preserve-3d; will-change: transform;
}
.card .icon {
  font-size: 1.9rem; line-height: 1;
  display: inline-grid; place-content: center;
  width: 58px; height: 58px; border-radius: 16px;
  background: linear-gradient(135deg,
    color-mix(in oklab, var(--a1) 22%, transparent),
    color-mix(in oklab, var(--a2) 22%, transparent));
  border: 1px solid color-mix(in oklab, var(--a1) 30%, transparent);
  margin-bottom: var(--sp-2);
  transform: translateZ(30px);
}
.card h3 { font-size: 1.25rem; margin-bottom: 0.4rem; transform: translateZ(20px); }
.card p  { font-size: 0.95rem; color: var(--ink-low); margin: 0; transform: translateZ(12px); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6em;
  padding: 0.95em 1.9em; border-radius: 999px;
  font: 600 0.95rem/1 "Inter", sans-serif; letter-spacing: 0.02em;
  text-decoration: none; cursor: pointer; border: 0;
  color: #0a0a12;
  background: linear-gradient(100deg, var(--a1), var(--a2));
  transition: transform 0.35s var(--ease-spring), box-shadow 0.35s var(--ease-out), filter 0.35s;
  will-change: transform;
}
.btn:hover { filter: brightness(1.1); box-shadow: 0 12px 40px -12px color-mix(in oklab, var(--a1) 70%, transparent); }
.btn.ghost {
  color: var(--ink-hi); background: var(--glass-bg);
  border: 1px solid var(--glass-brd);
}
.btn.ghost:hover { border-color: color-mix(in oklab, var(--a1) 50%, var(--glass-brd)); box-shadow: none; }

/* ---------- Badges ---------- */
.badge {
  display: inline-block; padding: 0.3em 0.85em; border-radius: 999px;
  font: 600 0.72rem/1.4 "Inter", sans-serif; letter-spacing: 0.08em; text-transform: uppercase;
  border: 1px solid var(--glass-brd); color: var(--ink-low); background: var(--glass-bg);
}
.badge.live { color: #6ee7b7; border-color: rgba(110, 231, 183, 0.35); }
.badge.wip  { color: #fbbf24; border-color: rgba(251, 191, 36, 0.35); }

/* ---------- Reveal states (aura-motion.js) ---------- */
[data-reveal] { opacity: 0; transform: translateY(26px); }
[data-reveal].is-in {
  opacity: 1; transform: none;
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
}
[data-split] .w { display: inline-block; overflow: clip; vertical-align: bottom; }
[data-split] .w > span { display: inline-block; transform: translateY(110%); }
[data-split].is-in .w > span {
  transform: none;
  transition: transform 1s var(--ease-out);
  transition-delay: calc(var(--wi) * 70ms);
}

/* ---------- A11y & reduced motion ---------- */
:focus-visible { outline: 2px solid var(--a1); outline-offset: 3px; border-radius: 6px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
  [data-reveal], [data-split] .w > span { opacity: 1 !important; transform: none !important; }
}
