/* ════════════════════════════════════════════════════════════════════
   AURORA DESIGN SYSTEM — COMPONENTS
   Requires aurora-tokens.css. All components read --au-* semantic tokens,
   so they adapt automatically to .aurora / .aurora[data-skin=light].
   ════════════════════════════════════════════════════════════════════ */

.aurora *, .aurora *::before, .aurora *::after { box-sizing: border-box; }
.aurora a { color: inherit; text-decoration: none; }
.aurora img { max-width: 100%; display: block; }

/* ── Layout ── */
.au-container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
.au-container--wide { max-width: 1360px; }
.au-section { position: relative; padding: 96px 0; isolation: isolate; }
.au-stack > * + * { margin-top: 16px; }
.au-divider { height: 1px; background: var(--au-hairline); border: 0; margin: 32px 0; }

/* ── Aurora background (rotating conic swirl) ── */
.au-aurora-bg { position: relative; overflow: hidden; isolation: isolate; }
.au-aurora-bg > * { position: relative; z-index: 1; }
.au-swirl {
  content: "";
  position: absolute;
  inset: -60%;
  z-index: 0;
  pointer-events: none;
  background: var(--au-grad-swirl);
  filter: blur(46px) saturate(1.4) brightness(1.1);
  opacity: 0.42;
  animation: auSwirl 14s linear infinite;
}
.aurora:not([data-skin="light"]) .au-swirl { opacity: 0.85; }
@keyframes auSwirl { to { transform: rotate(360deg); } }

.au-glow {
  position: absolute; border-radius: 50%; filter: blur(70px);
  pointer-events: none; z-index: 0; opacity: 0.5;
}

/* Whole-page ambient animated aurora — slow drifting background for interior pages */
.au-pagebg {
  position: fixed; inset: -30%; z-index: -1; pointer-events: none;
  background: var(--au-grad-swirl);
  filter: blur(80px) saturate(1.2);
  opacity: 0.16;
  animation: auSwirl 44s linear infinite;
}
.aurora[data-skin="light"] .au-pagebg { opacity: 0.10; }
@media (prefers-reduced-motion: reduce) { .au-pagebg { animation: none !important; } }

/* ── Typography ── */
.au-display, .au-h1, .au-h2, .au-h3 {
  font-family: var(--au-font-display);
  font-weight: 800; line-height: 1; letter-spacing: -0.03em;
  color: var(--au-text);
}
.au-display { font-size: var(--au-display); line-height: 0.96; }
.au-h1 { font-size: var(--au-h1); }
.au-h2 { font-size: var(--au-h2); line-height: 1.04; }
.au-h3 { font-size: var(--au-h3); line-height: 1.1; letter-spacing: -0.02em; }
.au-lead { font-size: var(--au-text-lg); line-height: 1.55; color: var(--au-text-muted); }
.au-body { font-size: var(--au-text-base); line-height: 1.65; color: var(--au-text-muted); }
.au-serif { font-family: var(--au-font-serif); font-style: italic; font-weight: 400; }
.au-text-gradient {
  background: var(--au-grad-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.au-label {
  display: inline-block; font-family: var(--au-font-mono);
  font-size: var(--au-text-xs); font-weight: 500; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--au-accent);
}

/* "AI"-style glass highlight word */
.au-glass {
  padding: 0 0.16em 0.04em; border-radius: 0.16em; color: var(--au-aqua);
  background: linear-gradient(160deg, rgba(255,255,255,0.22) 0%, rgba(255,255,255,0.06) 46%, rgba(127,227,255,0.12) 100%);
  border: 1px solid rgba(255,255,255,0.30); border-top-color: rgba(255,255,255,0.60);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  box-shadow:
    inset 0 2px 0 rgba(255,255,255,0.50), inset 0 -10px 20px rgba(99,102,241,0.30),
    0 0 30px rgba(127,227,255,0.60), 0 0 70px rgba(168,85,247,0.45);
  text-shadow: 0 0 22px rgba(127,227,255,0.65);
}
.aurora[data-skin="light"] .au-glass {
  color: #0E7490; text-shadow: none;
  background: linear-gradient(160deg, rgba(124,58,237,0.10), rgba(61,169,255,0.10));
  border-color: rgba(124,58,237,0.30); border-top-color: rgba(255,255,255,0.9);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.9), 0 0 0 rgba(0,0,0,0);
}

/* ── Buttons ── */
.au-btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--au-font-mono); font-size: var(--au-text-sm); font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 13px 26px; border-radius: var(--au-r-pill); border: 1px solid transparent;
  cursor: pointer; transition: transform var(--au-speed) var(--au-ease), box-shadow var(--au-speed) ease, background var(--au-speed) ease;
}
.au-btn:hover { transform: translateY(-2px); }
.au-btn--primary {
  color: #fff; background: var(--au-grad-brand);
  box-shadow: 0 10px 30px -8px rgba(168,85,247,0.55);
}
.au-btn--primary:hover { box-shadow: 0 16px 40px -8px rgba(168,85,247,0.7); }
.au-btn--ghost {
  color: var(--au-text); background: var(--au-surface);
  border-color: var(--au-border);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.au-btn--ghost:hover { border-color: var(--au-accent); }
.au-btn--outline { color: var(--au-accent); background: transparent; border-color: var(--au-accent); }
.au-btn--outline:hover { background: var(--au-accent); color: var(--au-on-accent); }
.au-btn--sm { padding: 8px 16px; font-size: var(--au-text-xs); }
.au-btn--lg { padding: 16px 34px; font-size: var(--au-text-base); }

/* ── Cards (glass / 3D) ── */
.au-card {
  position: relative; background: var(--au-card-bg);
  border: 1px solid var(--au-card-border); border-top-color: var(--au-card-border-top);
  border-radius: var(--au-r-lg); padding: 28px;
  box-shadow: var(--au-card-shadow);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  transition: transform var(--au-speed) var(--au-ease), box-shadow var(--au-speed) ease;
}
.au-card--interactive:hover { transform: translateY(-8px); box-shadow: var(--au-card-shadow-hover); }
.au-card__eyebrow { font-family: var(--au-font-mono); font-size: var(--au-text-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--au-accent); }
.au-card__title { font-family: var(--au-font-display); font-weight: 700; font-size: var(--au-h3); margin: 8px 0 10px; color: var(--au-text); }
.au-card__body { color: var(--au-text-muted); line-height: 1.6; }

/* ── Nav (frosted) ── */
.au-nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--au-nav-bg);
  -webkit-backdrop-filter: blur(18px) saturate(1.4); backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--au-hairline);
}
.au-nav__inner { max-width: 1200px; margin: 0 auto; padding: 16px 40px; display: flex; align-items: center; justify-content: space-between; }
.au-nav__logo { font-family: var(--au-font-display); font-weight: 800; font-size: 1.1rem; color: var(--au-text); }
.au-nav__logo span { color: var(--au-accent); }
.au-nav__links { display: flex; gap: 28px; align-items: center; }
.au-nav__links a { font-size: var(--au-text-sm); color: var(--au-text-muted); transition: color 0.2s; }
.au-nav__links a:hover { color: var(--au-text); }

/* ── Chips / Badges ── */
.au-chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--au-font-mono); font-size: var(--au-text-xs);
  padding: 6px 12px; border-radius: var(--au-r-sm);
  background: var(--au-surface); border: 1px solid var(--au-border); color: var(--au-text-muted);
}
.au-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--au-text-xs); font-weight: 600; padding: 4px 10px; border-radius: var(--au-r-pill);
}
.au-badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.au-badge--success { color: var(--au-success); background: var(--au-success-bg); }
.au-badge--warning { color: var(--au-warning); background: var(--au-warning-bg); }
.au-badge--danger  { color: var(--au-danger);  background: var(--au-danger-bg); }

/* ── Forms ── */
.au-field { display: flex; flex-direction: column; gap: 6px; }
.au-field__label { font-size: var(--au-text-sm); font-weight: 600; color: var(--au-text); }
.au-input, .au-select, .au-textarea {
  width: 100%; font-family: var(--au-font-body); font-size: var(--au-text-base);
  color: var(--au-text); background: var(--au-input-bg);
  border: 1px solid var(--au-input-border); border-radius: var(--au-r-md);
  padding: 12px 14px; transition: border-color 0.2s, box-shadow 0.2s;
}
.au-input::placeholder, .au-textarea::placeholder { color: var(--au-text-faint); }
.au-input:focus, .au-select:focus, .au-textarea:focus {
  outline: none; border-color: var(--au-accent-strong);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.18);
}
.au-textarea { min-height: 96px; resize: vertical; }

/* ── KPI / stat tiles ── */
.au-kpi { padding: 22px 24px; }
.au-kpi__label { font-family: var(--au-font-mono); font-size: var(--au-text-xs); letter-spacing: 0.1em; text-transform: uppercase; color: var(--au-text-muted); }
.au-kpi__value { font-family: var(--au-font-display); font-weight: 800; font-size: clamp(2rem, 4vw, 2.8rem); line-height: 1; margin: 8px 0 6px; color: var(--au-text); }
.au-kpi__delta { font-size: var(--au-text-sm); font-weight: 600; }
.au-kpi__delta--up { color: var(--au-success); }
.au-kpi__delta--down { color: var(--au-danger); }

/* ── Progress ── */
.au-progress { height: 8px; border-radius: var(--au-r-pill); background: var(--au-hairline); overflow: hidden; }
.au-progress__fill { height: 100%; border-radius: inherit; background: var(--au-grad-brand); }

/* ── Table (data-dense, shines in light skin) ── */
.au-table { width: 100%; border-collapse: collapse; font-size: var(--au-text-sm); }
.au-table th {
  text-align: left; font-family: var(--au-font-mono); font-size: var(--au-text-xs);
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--au-text-muted);
  padding: 12px 16px; border-bottom: 1px solid var(--au-border); white-space: nowrap;
}
.au-table td { padding: 13px 16px; border-bottom: 1px solid var(--au-hairline); color: var(--au-text); }
.au-table tbody tr:nth-child(even) { background: var(--au-row-stripe); }
.au-table tbody tr:hover { background: var(--au-row-hover); }
.au-table .num { font-family: var(--au-font-mono); text-align: right; }

/* ── Grid helpers ── */
.au-grid { display: grid; gap: var(--au-gap); }
.au-grid--2 { grid-template-columns: repeat(2, 1fr); }
.au-grid--3 { grid-template-columns: repeat(3, 1fr); }
.au-grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .au-grid--3, .au-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .au-container { padding: 0 22px; }
}
@media (max-width: 600px) {
  .au-grid--2, .au-grid--3, .au-grid--4 { grid-template-columns: 1fr; }
  .au-nav__links { display: none; }
}

/* ── Scroll character reveal (driven by aurora-fx.js) ── */
.au-word { display: inline-block; white-space: nowrap; }
.au-cr-char { display: inline-block; color: var(--au-text-faint); transition: color 0.1s ease; will-change: transform, filter; }
.au-cr-char.is-active {
  background: linear-gradient(135deg, #E0CCFF 0%, #A855F7 30%, #EC4899 62%, #7FE3FF 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  filter: drop-shadow(0 2px 10px rgba(168,85,247,0.5));
  animation: crPop 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes crPop {
  0%   { transform: translateY(12px) scale(0.6); }
  55%  { transform: translateY(-3px) scale(1.24); filter: drop-shadow(0 0 24px rgba(127,227,255,0.95)); }
  100% { transform: translateY(0) scale(1); filter: drop-shadow(0 2px 10px rgba(168,85,247,0.5)); }
}
.au-tw-char { display: inline-block; white-space: pre; opacity: 0; transform: translateY(8px); transition: opacity 0.15s ease, transform 0.15s ease; }
.au-reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s var(--au-ease), transform 0.6s var(--au-ease); }
.au-reveal.is-in { opacity: 1; transform: none; }

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .au-swirl { animation: none !important; }
  .au-reveal, .au-tw-char, .au-cr-char { transition: none !important; }
  .au-reveal { opacity: 1 !important; transform: none !important; }
  .au-tw-char { opacity: 1 !important; transform: none !important; }
  .au-cr-char.is-active { animation: none !important; transform: none !important; filter: none !important; }
}