/* ══════════════════════════════════════════════
   GBT小土豆 · Shared Design System v5.0
   ══════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');
:root {
  /* Palette */
  --bg: #000;
  --bg2: #08080c;
  --bg3: #111118;
  --fg: #f5f5f7;
  --dim: #86868b;
  --accent: #ff6b35;
  --accent2: #ff9a56;
  --blue: #2997ff;
  --blue2: #3b82f6;
  --purple: #7c3aed;
  --teal: #0d9488;
  --green: #30d158;
  --red: #ff4757;
  --cyan: #06b6d4;
  --amber: #f59e0b;
  --violet: #8b5cf6;
  --pink: #ec4899;
  --indigo: #6366f1;
  --emerald: #10b981;
  --rose: #f43f5e;

  /* Borders & Surfaces */
  --border: rgba(255, 255, 255, .06);
  --border-strong: rgba(255, 255, 255, .10);
  --glass-bg: rgba(255, 255, 255, .02);
  --glass-border: rgba(255, 255, 255, .06);

  /* Radii */
  --radius: 18px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0,0,0,.25);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.3);
  --shadow-md: 0 4px 24px rgba(0,0,0,.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.5);
  --shadow-lift: 0 8px 32px rgba(0,0,0,.5);
  --shadow-lift-sm: 0 8px 32px rgba(0,0,0,.3);
  --shadow-lift-md: 0 8px 32px rgba(0,0,0,.4);
  --shadow-card-hover: 0 12px 40px rgba(0,0,0,.4);
  --shadow-xl: 0 16px 48px rgba(0,0,0,.45);
  --shadow-2xl: 0 20px 60px rgba(0,0,0,.35);
  --shadow-glow-orange: 0 0 30px rgba(255,107,53,.15);
  --shadow-glow-teal: 0 0 30px rgba(13,148,136,.15);
  --shadow-glow-purple: 0 0 30px rgba(124,58,237,.15);
  --shadow-glow-blue: 0 0 30px rgba(41,151,255,.15);
  --shadow-glow-green: 0 0 30px rgba(48,209,88,.12);

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Spacing Scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  /* Section Rhythm */
  --section-sm: 80px;
  --section-md: 120px;
  --section-lg: 160px;
  --section-xl: 200px;

  /* Transitions */
  --ease-out-expo: cubic-bezier(.16,1,.3,1);
  --ease-out-quint: cubic-bezier(.22,1,.36,1);
  --ease-spring: cubic-bezier(.34,1.56,.64,1);
  --duration-fast: 150ms;
  --duration-base: 250ms;
  --duration-slow: 400ms;
  --duration-glacial: 700ms;
}

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

html { scroll-behavior: smooth; }

body {
  background:
    radial-gradient(circle at 50% 0%, rgba(255,107,53,.04) 0%, transparent 50%),
    radial-gradient(circle at 85% 20%, rgba(41,151,255,.03) 0%, transparent 40%),
    radial-gradient(circle at 15% 80%, rgba(124,58,237,.03) 0%, transparent 40%),
    radial-gradient(circle, rgba(255,255,255,.025) 1px, transparent 1px),
    var(--bg);
  background-size: 100% 100%, 100% 100%, 100% 100%, 20px 20px, auto;
  background-attachment: fixed;
  color: var(--fg);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'ss01', 'ss02';
  letter-spacing: -.01em;
  animation: pageIn .3s var(--ease-out-expo) both;
}


h1, .h1 { font-size: clamp(38px, 5.5vw, 58px); font-weight: 800; letter-spacing: -.05em; line-height: 1.06; margin: 0 0 .25em; color: var(--fg); }
h2, .h2 { font-size: clamp(28px, 4vw, 44px); font-weight: 700; letter-spacing: -.03em; line-height: 1.12; margin: 0 0 .25em; color: var(--fg); }
h3, .h3 { font-size: clamp(20px, 2.5vw, 28px); font-weight: 600; letter-spacing: -.02em; line-height: 1.22; margin: 0 0 .2em; color: var(--fg); }
h4, .h4 { font-size: clamp(17px, 1.8vw, 20px); font-weight: 600; letter-spacing: -.01em; line-height: 1.3; margin: 0 0 .15em; color: var(--fg); }
body, p, .body { font-size: 15px; color: var(--dim); line-height: 1.7; }

/* ── Typography Scale ─────────────── */
.text-xs  { font-size: 11px; line-height: 1.5; }
.text-sm  { font-size: 13px; line-height: 1.55; }
.text-base { font-size: 15px; line-height: 1.65; }
.text-lg  { font-size: 17px; line-height: 1.55; }
.text-xl  { font-size: 20px; line-height: 1.45; }
.text-2xl { font-size: 24px; line-height: 1.35; }
.text-3xl { font-size: 32px; line-height: 1.2; letter-spacing: -.02em; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.text-dim { color: var(--dim); }
.text-accent { color: var(--accent); }
.text-teal { color: var(--teal); }
.text-purple { color: var(--purple); }
.text-blue { color: var(--blue); }
.text-green { color: var(--green); }
.tracking-tight { letter-spacing: -.02em; }
.tracking-wide { letter-spacing: .04em; text-transform: uppercase; }
.leading-relaxed { line-height: 1.75; }
.leading-snug { line-height: 1.35; }
.text-balance { text-wrap: balance; }

::selection { background: var(--accent); color: #fff; }


/* ── Scrollbar ─────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.10); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.18); }
::-webkit-scrollbar-corner { background: transparent; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── Skip Link ────────────────────── */
.skip-link {
  position: fixed;
  top: -100%;
  left: 12px;
  z-index: 9999;
  padding: 12px 24px;
  background: var(--accent);
  color: #000;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: top .2s ease;
  pointer-events: none;
}
.skip-link:focus {
  top: 12px;
  pointer-events: auto;
  outline: 3px solid #fff;
  outline-offset: 2px;
}

/* ── Screen Reader Only ───────────── */
.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;
}

/* ── Nav ─────────────────────────── */
.gbt-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(0,0,0,.82);
  backdrop-filter: saturate(180%) blur(30px);
  -webkit-backdrop-filter: saturate(180%) blur(30px);
  border-bottom: 1px solid;
  border-image: linear-gradient(90deg, transparent, rgba(255,107,53,.2), transparent) 1;
  transition: border-image .4s ease, box-shadow .4s ease;
}
.gbt-nav.scrolled {
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-image: linear-gradient(90deg, transparent, var(--accent), transparent) 1;
  box-shadow: 0 1px 20px rgba(255,107,53,.08);
}
.gbt-nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 48px; max-width: 1200px; margin: 0 auto; padding: 0 24px;
}
.gbt-nav-brand {
  display: flex; align-items: center; gap: 8px;
  text-decoration: none; color: var(--fg); font-weight: 600; font-size: 15px;
}
.gbt-nav-brand svg { height: 24px; width: 24px; border-radius: 6px; }
.gbt-nav-links { display: flex; gap: 14px; }
.gbt-nav-links a {
  color: var(--dim); text-decoration: none; font-size: 12px; font-weight: 500;
  transition: color .2s;
}
.gbt-nav-links a:hover, .gbt-nav-links a.active { color: var(--fg); }

/* ── Notification Bar ──────────────── */
.notif-bar.show { transform: translateY(0); }
section[id] { scroll-margin-top: 56px; }

/* ── Buttons ──────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 30px; border-radius: 28px; font-size: 15px; font-weight: 600;
  text-decoration: none; border: none; cursor: pointer;
  transition: all .35s cubic-bezier(.16,1,.3,1);
  letter-spacing: -.01em; white-space: nowrap;
  position: relative; overflow: hidden; isolation: isolate;
}
.btn::after {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(135deg, rgba(255,255,255,.06), rgba(255,255,255,0));
  opacity: 0; transition: opacity .35s ease;
}
.btn:hover::after { opacity: 1; }
.btn:active { transform: scale(.97); }
.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 0 20px rgba(255,107,53,.15);
}
.btn-primary:hover {
  background: var(--accent2); transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255,107,53,.35);
}
.btn-outline {
  background: transparent; color: var(--fg);
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  border-color: rgba(255,255,255,.28);
  background: rgba(255,255,255,.05);
  transform: translateY(-2px);
}
.btn-sm {
  padding: 8px 18px; border-radius: var(--radius); font-size: 13px; font-weight: 600;
  text-decoration: none; background: var(--accent); color: #fff;
  transition: all .3s cubic-bezier(.16,1,.3,1); border: none; cursor: pointer;
}
.btn-sm:hover { background: var(--accent2); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(255,107,53,.25); }
.btn-green {
  background: var(--green); color: #000;
}
.btn-green:hover { background: #34e062; transform: translateY(-2px); box-shadow: 0 6px 24px rgba(48,209,88,.35); }
.btn-teal {
  background: var(--teal); color: #fff;
  box-shadow: 0 0 20px rgba(13,148,136,.15);
}
.btn-teal:hover {
  background: #0fb9a8; transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(13,148,136,.35);
}
.btn-purple {
  background: var(--purple); color: #fff;
  box-shadow: 0 0 20px rgba(124,58,237,.15);
}
.btn-purple:hover {
  background: #8b5cf6; transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(124,58,237,.35);
}
.btn-lg { padding: 16px 36px; border-radius: 32px; font-size: 16px; }
.btn-xs { padding: 6px 14px; border-radius: var(--radius); font-size: 12px; }

/* Glowing CTA button */
.btn-glow {
  animation: btnGlowPulse 2.5s ease-in-out infinite;
}
@keyframes btnGlowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(255,107,53,.2); }
  50% { box-shadow: 0 0 40px rgba(255,107,53,.45), 0 0 80px rgba(255,107,53,.12); }
}

/* ── Animations ───────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(24px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-24px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(.92); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}
@keyframes pulse-ring {
  0%   { transform: scale(.9); opacity: .6; }
  100% { transform: scale(1.3); opacity: 0; }
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes pageIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.animate-fade-in-up  { animation: fadeInUp   .7s var(--ease-out-expo) both; }
.animate-fade-in     { animation: fadeIn      .5s var(--ease-out-expo) both; }
.animate-slide-right { animation: slideInRight .6s var(--ease-out-expo) both; }
.animate-scale-in    { animation: scaleIn     .5s var(--ease-out-expo) both; }
.animate-float       { animation: float       4s ease-in-out infinite; }
.animate-shimmer {
  background: linear-gradient(90deg, transparent 25%, rgba(255,255,255,.06) 50%, transparent 75%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}
.stagger-1 { animation-delay: .1s; }
.stagger-2 { animation-delay: .2s; }
.stagger-3 { animation-delay: .3s; }
.stagger-4 { animation-delay: .4s; }
.stagger-5 { animation-delay: .5s; }

/* ── Compositor Hints ──────────────── */
.hero-orb { will-change: transform; }
.card, .card-glass, .card-bordered { will-change: transform; }
.btn { will-change: transform; }
.stat { will-change: transform; }
.reveal { will-change: transform, opacity, filter; }
.trending-row { will-change: transform; }

/* ── Layout ───────────────────────── */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-lg) 0; }
.section-sm  { padding: var(--section-sm) 0; }
.section-md  { padding: var(--section-md) 0; }
.section-lg  { padding: var(--section-lg) 0; }
.section-xl  { padding: var(--section-xl) 0; }
.section-label {
  font-size: 12px; font-weight: 600; letter-spacing: 3px;
  color: var(--accent); text-transform: uppercase; margin-bottom: 16px;
}
.section h2 {
  font-size: clamp(32px, 5vw, 52px); font-weight: 700;
  letter-spacing: -.03em; margin-bottom: 16px; line-height: 1.1;
}
.section-sub {
  color: var(--dim); font-size: 16px; max-width: 480px;
  margin-bottom: 48px; line-height: 1.6;
}

/* ── Content Visibility — defer below-fold paint ── */
#what-gbt-does,
#features,
#api-showcase,
#trending,
#agency,
#market,
#2captcha,
#how,
#split,
#payments,
#trust,
#cta,
#kyc {
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

/* ── Section Header Gradient Accents ── */
.section h2::after {
  content: ''; display: block; width: 64px; height: 3px;
  margin-top: 12px; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--purple), var(--teal));
}
.section h2.text-center::after { margin-left: auto; margin-right: auto; }
.section-label + h2::after { margin-top: 4px; }
/* Card header accent variant */
.card h3::after, .card h4::after,
.card-glass h3::after, .card-glass h4::after {
  content: ''; display: block; width: 40px; height: 2px;
  margin-top: 8px; border-radius: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
}
.hl { color: var(--accent); }

/* Utility: gradient text via background-clip */
.text-gradient {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 25%, var(--purple) 60%, var(--blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient-teal {
  background: linear-gradient(135deg, var(--accent), var(--teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Cards ────────────────────────── */
/* Base card = glassmorphism (default site aesthetic) */
.card,
.card-glass {
  position: relative; background: rgba(255,255,255,.015);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 28px;
  transition: all .4s cubic-bezier(.16,1,.3,1);
  backdrop-filter: blur(24px) saturate(120%);
  -webkit-backdrop-filter: blur(24px) saturate(120%);
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(255,255,255,.03) inset,
    0 4px 16px rgba(0,0,0,.2);
}

/* Top gradient accent line — glass cards only */
.card::before,
.card-glass::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--purple), transparent);
  border-radius: var(--radius) var(--radius) 0 0; opacity: .3;
  transition: opacity .4s ease;
}

/* Mouse-follow highlight — glass cards only */
.card::after,
.card-glass::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255,255,255,.03), transparent 70%);
  opacity: 0; transition: opacity .4s ease; pointer-events: none;
}

.card:hover,
.card-glass:hover {
  border-color: rgba(255,255,255,.1);
  transform: translateY(-4px);
  box-shadow:
    0 1px 0 rgba(255,255,255,.05) inset,
    0 8px 32px rgba(0,0,0,.3),
    0 0 60px rgba(255,107,53,.06);
}
.card:hover::before,
.card-glass:hover::before { opacity: .8; }
.card:hover::after,
.card-glass:hover::after { opacity: 1; }

/* Card Accent Variants */
.card-accent::before,
.card-glass.card-accent::before  { background: linear-gradient(90deg, transparent, var(--accent), transparent); }
.card-teal::before,
.card-glass.card-teal::before    { background: linear-gradient(90deg, transparent, var(--teal), transparent); }
.card-purple::before,
.card-glass.card-purple::before  { background: linear-gradient(90deg, transparent, var(--purple), transparent); }
.card-blue::before,
.card-glass.card-blue::before    { background: linear-gradient(90deg, transparent, var(--blue), transparent); }
.card-green::before,
.card-glass.card-green::before   { background: linear-gradient(90deg, transparent, var(--green), transparent); }
.card-accent:hover,
.card-glass.card-accent:hover  { box-shadow: 0 1px 0 rgba(255,255,255,.05) inset, 0 8px 32px rgba(0,0,0,.3), var(--shadow-glow-orange); }
.card-teal:hover,
.card-glass.card-teal:hover    { box-shadow: 0 1px 0 rgba(255,255,255,.05) inset, 0 8px 32px rgba(0,0,0,.3), var(--shadow-glow-teal); }
.card-purple:hover,
.card-glass.card-purple:hover  { box-shadow: 0 1px 0 rgba(255,255,255,.05) inset, 0 8px 32px rgba(0,0,0,.3), var(--shadow-glow-purple); }
.card-blue:hover,
.card-glass.card-blue:hover    { box-shadow: 0 1px 0 rgba(255,255,255,.05) inset, 0 8px 32px rgba(0,0,0,.3), var(--shadow-glow-blue); }
.card-green:hover,
.card-glass.card-green:hover   { box-shadow: 0 1px 0 rgba(255,255,255,.05) inset, 0 8px 32px rgba(0,0,0,.3), var(--shadow-glow-green); }

/* ── Bordered card — solid border, no glass, no pseudo-elements ── */
.card-bordered {
  position: relative;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all .4s cubic-bezier(.16,1,.3,1);
  overflow: hidden;
}
.card-bordered:hover {
  border-color: rgba(255,255,255,.12);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,.25);
}

/* ── Size & Behavior Variants ─────── */
.card-sm { padding: 20px; border-radius: var(--radius-sm); }
.card-lg { padding: 36px; border-radius: var(--radius-lg); }
.card-interactive { cursor: pointer; }
.card-interactive:hover {
  border-color: rgba(255,255,255,.1);
  transform: translateY(-5px);
  box-shadow:
    0 1px 0 rgba(255,255,255,.05) inset,
    0 12px 40px rgba(0,0,0,.35);
}
.card-interactive:hover::before { opacity: .8; }

/* ── Footer ───────────────────────── */
.gbt-footer {
  padding: 64px 0 40px;
  border-top: 2px solid transparent;
  border-image: linear-gradient(90deg, rgba(255,107,53,.35), rgba(41,151,255,.35), rgba(48,209,88,.35)) 1;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(10,10,18,.97) 100%);
}
.gbt-footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  margin-bottom: 40px;
}
.gbt-footer h5 {
  font-size: 12px; font-weight: 600; letter-spacing: 1px;
  color: var(--fg); margin-bottom: 12px; text-transform: uppercase;
}
.gbt-footer a {
  color: var(--dim); text-decoration: none; font-size: 13px;
  display: block; margin-bottom: 6px; line-height: 1.8;
}
.gbt-footer a:hover { color: var(--accent); }
.gbt-footer-bottom {
  padding-top: 24px; border-top: 1px solid rgba(255,255,255,.06);
  display: flex; justify-content: space-between; color: var(--dim);
  font-size: 12px; flex-wrap: wrap; gap: 12px;
}

/* Back to top */
.gbt-back-to-top {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--dim); cursor: pointer;
  transition: all .25s ease; padding: 6px 12px;
  border-radius: var(--radius); background: transparent;
  border: 1px solid transparent; text-decoration: none;
  margin-bottom: 12px;
}
.gbt-back-to-top svg { width: 14px; height: 14px; transition: transform .25s ease; }
.gbt-back-to-top:hover { color: var(--accent); border-color: rgba(255,107,53,.15); }
.gbt-back-to-top:hover svg { transform: translateY(-2px); }
.gbt-footer-badges { display: flex; gap: 16px; flex-wrap: wrap; }
.trust-badge {
  font-size: 11px; padding: 5px 12px; border-radius: var(--radius);
  background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.07);
  color: var(--dim); letter-spacing: .3px;
  transition: all .25s ease; white-space: nowrap;
}
.trust-badge:hover {
  border-color: rgba(48,209,88,.25);
  color: var(--fg);
  background: rgba(48,209,88,.06);
}
/* ── Trust Badge Tooltip ──────────── */
.trust-badge-item[data-tooltip] {
  position: relative;
  cursor: help;
}
.trust-badge-item[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 7px 14px;
  background: rgba(20,20,28,.96);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-sm);
  color: var(--fg);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.4;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity .25s ease, transform .25s var(--ease-out-expo);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 10;
}
.trust-badge-item[data-tooltip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Trust Badge Icon SVG ──────────── */
.trust-badge-icon svg {
  display: block;
  width: 14px;
  height: 14px;
}
.stat-icon svg {
  display: block;
  width: 22px;
  height: 22px;
}

/* ── Stats Bar ────────────────────── */
.stats { display: flex; justify-content: center; gap: 0; padding: 48px 0; flex-wrap: wrap; }
.stat { text-align: center; padding: 0 48px; border-left: 1px solid rgba(255,255,255,.06); transition: transform .35s cubic-bezier(.16,1,.3,1); position: relative; }
.stat:first-child { border-left: none; }
.stat:hover { transform: translateY(-3px); }
.stat-num { font-size: 48px; font-weight: 800; line-height: 1; transition: all .35s cubic-bezier(.16,1,.3,1); position: relative; }
.stat-num.g { color: var(--green); text-shadow: 0 0 20px rgba(48,209,88,.15); }
.stat-num.o { color: var(--accent); text-shadow: 0 0 20px rgba(255,107,53,.15); }
.stat-num.b { color: var(--blue); text-shadow: 0 0 20px rgba(41,151,255,.15); }
.stat-num.t { color: var(--teal); text-shadow: 0 0 20px rgba(13,148,136,.15); }
.stat:hover .stat-num.g { text-shadow: 0 0 32px rgba(48,209,88,.3); }
.stat:hover .stat-num.o { text-shadow: 0 0 32px rgba(255,107,53,.3); }
.stat:hover .stat-num.b { text-shadow: 0 0 32px rgba(41,151,255,.3); }
.stat:hover .stat-num.t { text-shadow: 0 0 32px rgba(13,148,136,.3); }
.stat-label { font-size: 11px; font-weight: 500; color: var(--dim); margin-top: 8px; letter-spacing: 2px; text-transform: uppercase; }

/* ── Utility ──────────────────────── */
.reveal { opacity: 0; transform: translateY(40px); filter: blur(4px); transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1), filter .7s cubic-bezier(.16,1,.3,1); will-change: opacity, transform, filter; }
.reveal.visible { opacity: 1; transform: translateY(0); filter: blur(0); }

/* Page exit transition */
.page-exit {
  animation: pageOut .2s var(--ease-out-expo) both;
}
@keyframes pageOut {
  from { opacity: 1; filter: blur(0); }
  to   { opacity: 0; filter: blur(2px); }
}

/* Stagger delays for card grids — 0.1s per sibling */
.card.reveal:nth-child(1),
.card-glass.reveal:nth-child(1)  { transition-delay: 0s; }
.card.reveal:nth-child(2),
.card-glass.reveal:nth-child(2)  { transition-delay: .1s; }
.card.reveal:nth-child(3),
.card-glass.reveal:nth-child(3)  { transition-delay: .2s; }
.card.reveal:nth-child(4),
.card-glass.reveal:nth-child(4)  { transition-delay: .3s; }
.card.reveal:nth-child(5),
.card-glass.reveal:nth-child(5)  { transition-delay: .4s; }
.card.reveal:nth-child(6),
.card-glass.reveal:nth-child(6)  { transition-delay: .5s; }
.card.reveal:nth-child(7),
.card-glass.reveal:nth-child(7)  { transition-delay: .6s; }
.card.reveal:nth-child(8),
.card-glass.reveal:nth-child(8)  { transition-delay: .7s; }
.card.reveal:nth-child(9),
.card-glass.reveal:nth-child(9)  { transition-delay: .8s; }
.card.reveal:nth-child(10),
.card-glass.reveal:nth-child(10) { transition-delay: .9s; }
.text-center { text-align: center; }
.mt-48 { margin-top: 48px; }

/* Spacing Helpers */
.mt-0  { margin-top: 0; }
.mt-8  { margin-top: var(--space-sm); }
.mt-16 { margin-top: var(--space-md); }
.mt-24 { margin-top: var(--space-lg); }
.mt-32 { margin-top: var(--space-xl); }
.mt-64 { margin-top: var(--space-3xl); }
.mb-0  { margin-bottom: 0; }
.mb-8  { margin-bottom: var(--space-sm); }
.mb-16 { margin-bottom: var(--space-md); }
.mb-24 { margin-bottom: var(--space-lg); }
.mb-32 { margin-bottom: var(--space-xl); }
.mb-48 { margin-bottom: var(--space-2xl); }
.mb-64 { margin-bottom: var(--space-3xl); }
.pt-0  { padding-top: 0; }
.pt-16 { padding-top: var(--space-md); }
.pt-32 { padding-top: var(--space-xl); }
.pb-0  { padding-bottom: 0; }
.pb-16 { padding-bottom: var(--space-md); }
.pb-32 { padding-bottom: var(--space-xl); }
.gap-8  { gap: var(--space-sm); }
.gap-12 { gap: 12px; }
.gap-16 { gap: var(--space-md); }
.gap-24 { gap: var(--space-lg); }
.gap-32 { gap: var(--space-xl); }
.gap-48 { gap: var(--space-2xl); }

/* Flex & Grid Helpers */
.flex       { display: flex; }
.flex-col   { display: flex; flex-direction: column; }
.flex-wrap  { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

/* Visibility */
.hidden-mobile { }
.hidden-desktop { }

/* Misc */
.w-full { width: 100%; }
.relative { position: relative; }
.overflow-hidden { overflow: hidden; }
.rounded { border-radius: var(--radius); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-full { border-radius: var(--radius-full); }
.divider { width: 100%; height: 1px; background: var(--border); margin: 48px 0; }

/* ── Glass Utility ─────────────────── */
.glass {
  background: rgba(255, 255, 255, .006);
  border: 1px solid rgba(255, 255, 255, .05);
  border-top: 1px solid rgba(255,255,255,.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius);
}

/* ── Responsive ───────────────────── */
/* ≥1200px → xl (desktop-wide) */
/* ≥1024px → lg (desktop) */
/* ≥768px  → md (tablet) */
/* ≥480px  → sm (phablet) */
/* <480px  → default (mobile-first) */

/* ── Desktop-wide ── */
@media (min-width: 1200px) {
  .container { max-width: 1280px; }
}

/* ── Desktop (lg) ── */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .section { padding: var(--section-md) 0; }
  .section-xl { padding: 140px 0; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hidden-desktop { display: none; }
}

/* ── Tablet (md) ── */
@media (max-width: 768px) {
  .gbt-nav-links { display: none; }
  .gbt-footer-grid { grid-template-columns: 1fr 1fr; }
  .stats { gap: 24px; }
  .stat { padding: 0 24px; }
  .section { padding: var(--section-sm) 0; }
  .section-xl { padding: 100px 0; }
  .container { padding: 0 16px; }
  h1, .h1 { font-size: clamp(30px, 7vw, 38px); }
  h2, .h2 { font-size: clamp(24px, 5.5vw, 30px); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; gap: 0; }
  table th, table td { padding: 10px 12px; font-size: 13px; }
}

/* ── Mobile (xs) ═══════════════════════════════════ */
/* <480px — single-column, touch-optimized            */
/* ═══════════════════════════════════════════════════ */
@media (max-width: 480px) {

  /* ── Container & Sections ───────── */
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }
  .section-sm { padding: 36px 0; }
  .section-md { padding: 48px 0; }
  .section-lg { padding: 60px 0; }
  .section-xl { padding: 72px 0; }

  /* ── Typography ─────────────────── */
  h1, .h1 { font-size: clamp(28px, 9vw, 36px); line-height: 1.1; }
  h2, .h2 { font-size: clamp(22px, 7vw, 28px); line-height: 1.15; }
  h3, .h3 { font-size: clamp(17px, 5.5vw, 22px); line-height: 1.2; }
  h4, .h4 { font-size: 15px; line-height: 1.3; }
  body, p, .body { font-size: 14px; }
  .text-xl { font-size: 17px; }
  .text-2xl { font-size: 20px; }
  .text-3xl { font-size: 26px; }

  /* ── Nav ─────────────────────────── */
  .gbt-nav-inner { padding: 0 16px; height: 48px; }
  .gbt-nav-brand { font-size: 14px; }
  .gbt-nav-brand svg { height: 22px; width: 22px; }
  .gbt-nav-links { display: none; }

  /* ── Grids: single column ────────── */
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 16px; }

  /* ── Cards ───────────────────────── */
  .card, .card-glass, .card-bordered { padding: 18px; border-radius: var(--radius-sm); }
  .card-lg { padding: 22px; }
  .card-sm { padding: 16px; }

  /* ── Hero: stack CTAs vertically ─── */
  .hero-cta-row,
  .cta-links,
  .hero-cta,
  .stack-cta .cta-row { flex-direction: column !important; align-items: stretch; gap: 10px; }
  .hero-cta-row .btn,
  .cta-links .btn,
  .hero-cta .btn,
  .stack-cta .cta-row .btn,
  .stack-cta .cta-row .cta-btn { width: 100%; text-align: center; justify-content: center; }
  .hero-meta { flex-direction: column; gap: 12px; align-items: flex-start; }
  .hero-code { font-size: 11px; }
  .hero-code-bar { padding: 8px 12px; gap: 5px; }
  .hero-badge { font-size: 11px; padding: 5px 16px; }

  /* ── Footer: stack, center text ──── */
  .gbt-footer { padding: 48px 0 32px; }
  .gbt-footer-grid { grid-template-columns: 1fr; gap: 28px; text-align: center; }
  .gbt-footer a { display: block; text-align: center; }
  .gbt-footer-bottom { flex-direction: column; align-items: center; text-align: center; gap: 8px; }
  .gbt-footer-badges { justify-content: center; }
  .gbt-back-to-top { margin: 0 auto 12px; display: flex; }

  /* ── Stats ───────────────────────── */
  .stats { gap: 12px; padding: 32px 0; }
  .stat { padding: 0 12px; border-left: none; }
  .stat-num { font-size: 36px; }
  .stat-label { font-size: 10px; letter-spacing: 1.5px; }

  /* ── Buttons ─────────────────────── */
  .btn { padding: 12px 22px; font-size: 14px; border-radius: 26px; }
  .btn-lg { padding: 14px 28px; font-size: 15px; }
  .btn-sm { padding: 8px 16px; font-size: 12px; }
  .btn-xs { padding: 6px 12px; font-size: 11px; }

  /* ── Touch Targets (min 44px) ────── */
  .gbt-nav-links a { min-height: 44px; min-width: 44px; display: inline-flex; align-items: center; }
  .gbt-footer a { min-height: 44px; display: flex; align-items: center; justify-content: center; }
  .gbt-back-to-top { min-height: 44px; }
  .btn { min-height: 44px; }
  .btn-sm { min-height: 38px; }
  .btn-xs { min-height: 32px; }
  .tab-btn { min-height: 44px; padding: 10px 18px; }
  .trust-badge { min-height: 32px; display: inline-flex; align-items: center; }

  /* ── Forms ───────────────────────── */
  input, select, textarea { font-size: 14px; padding: 10px 14px; min-height: 44px; }
  .form-row { flex-direction: column; gap: 0; }
  label { font-size: 12px; }

  /* ── Tables ──────────────────────── */
  table th, table td { padding: 10px 10px; font-size: 12px; }
  .table-wrap table td:first-child,
  .table-wrap table th:first-child { padding-left: 16px; }
  .table-wrap table td:last-child,
  .table-wrap table th:last-child { padding-right: 16px; }
  table.compact th, table.compact td { padding: 8px 10px; font-size: 11px; }

  /* ── Utility ─────────────────────── */
  .hidden-mobile { display: none; }
  .mt-48 { margin-top: 32px; }
  .mt-64 { margin-top: 48px; }
  .legal-content { padding: 80px 16px 48px; }
  .legal-content h1 { font-size: clamp(24px, 7vw, 32px); }
  .legal-content h2 { font-size: 18px; margin-top: 32px; }
  .legal-content h3 { font-size: 15px; }
  .legal-content p, .legal-content li { font-size: 13px; }
  .legal-content ul, .legal-content ol { padding-left: 18px; }
  .divider { margin: 32px 0; }
  .guarantee-box { padding: 24px 18px; }
}

/* ── Legal Pages ───────────────────── */
.legal-content { max-width: 800px; margin: 0 auto; padding: 100px 24px 80px; }
.legal-content h1 { font-size: clamp(28px, 4vw, 40px); font-weight: 700; letter-spacing: -.02em; margin-bottom: 8px; }
.legal-content .last-updated { color: var(--dim); font-size: 13px; margin-bottom: 40px; }
.legal-content h2 { font-size: 22px; font-weight: 600; margin-top: 44px; margin-bottom: 14px; padding-top: 16px; border-top: 1px solid var(--border); }
.legal-content h3 { font-size: 17px; font-weight: 600; margin-top: 28px; margin-bottom: 10px; color: var(--accent2); }
.legal-content p { color: var(--dim); font-size: 14px; margin-bottom: 12px; line-height: 1.7; }
.legal-content li { color: var(--dim); font-size: 14px; margin-bottom: 8px; line-height: 1.7; }
.legal-content ul, .legal-content ol { padding-left: 24px; margin-bottom: 16px; }
.legal-content strong { color: var(--fg); }
.legal-content a { color: var(--accent); text-decoration: none; }
.legal-content a:hover { text-decoration: underline; }
.legal-content table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.legal-content th { padding: 12px 16px; text-align: left; color: var(--fg); font-weight: 600; background: var(--bg2); border-bottom: 1px solid var(--border); }
.legal-content td { padding: 12px 16px; color: var(--dim); border-bottom: 1px solid var(--border); }
.legal-content code { background: var(--bg3); padding: 2px 6px; border-radius: 4px; font-size: 13px; color: var(--accent2); }
.highlight { background: rgba(255,107,53,.08); border-left: 3px solid var(--accent); padding: 16px 20px; border-radius: 0 8px 8px 0; margin: 20px 0; }
.highlight p { color: var(--fg); margin: 0; }
.guarantee-box { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; text-align: center; margin: 32px 0; }
.guarantee-box .g-icon { font-size: 48px; margin-bottom: 12px; }
.guarantee-box h3 { color: var(--green); font-size: 20px; margin-top: 0; border: none; padding: 0; }
.subtle { font-size: 12px; color: var(--dim); }

/* ── Legal TOC ─────────────────────── */
.legal-toc {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 36px;
}
.legal-toc h2 {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--dim);
  margin: 0 0 14px;
  padding: 0;
  border: none;
}
.legal-toc ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 6px 24px;
}
.legal-toc li {
  font-size: 13px;
  margin: 0;
}
.legal-toc a {
  color: var(--dim);
  text-decoration: none;
  display: block;
  padding: 4px 0;
  transition: color .2s ease;
}
.legal-toc a:hover {
  color: var(--accent);
}

/* ── Legal Typography Enhancements ─── */
.legal-content h2[id] {
  scroll-margin-top: 80px;
}
.legal-content time {
  color: var(--dim);
  font-size: 13px;
}
.legal-content .last-updated {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 12px;
  color: var(--dim);
  margin-bottom: 36px;
}
.legal-content .last-updated::before {
  content: "📅";
  font-size: 12px;
}
.legal-content h2 {
  font-size: 20px;
  line-height: 1.35;
}
.legal-content h3 {
  line-height: 1.4;
}
.legal-content p, .legal-content li {
  line-height: 1.75;
}
.legal-content ul, .legal-content ol {
  margin-bottom: 20px;
}
.legal-content p {
  margin-bottom: 14px;
}

/* ── Print Styles ──────────────────── */
@media print {
  /* ── Global reset: black-on-white, no effects ── */
  *,
  *::before,
  *::after {
    background: #fff !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
    filter: none !important;
    backdrop-filter: none !important;
    opacity: 1 !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.6;
    margin: 0;
    padding: 0;
  }

  /* ── Hide non-print elements ── */
  .gbt-nav,
  .gbt-nav-inner,
  .gbt-nav-brand,
  .gbt-nav-links,
  .gbt-footer,
  .gbt-footer-grid,
  .gbt-footer-bottom,
  .gbt-back-to-top,
  .legal-toc,
  .notif-bar,
  .modal-overlay,
  .particles,
  .toast,
  .loading-spinner,
  .btn-spinner,
  .animate-float,
  .animate-shimmer,
  .skeleton,
  .skeleton-card,
  .skeleton-text,
  .skeleton-heading,
  .skeleton-avatar,
  .skeleton-btn,
  .skeleton-row,
  .skeleton-cell,
  .skeleton-table-row,
  header,
  footer,
  nav {
    display: none !important;
  }

  /* ── Reveal utility: force visible ── */
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
  }

  /* ── Typography ── */
  h1, .h1 { font-size: 22pt; margin-bottom: 4pt; page-break-after: avoid; }
  h2, .h2 { font-size: 16pt; margin-top: 24pt; margin-bottom: 8pt; page-break-after: avoid; }
  h3, .h3 { font-size: 13pt; page-break-after: avoid; }
  h4, .h4 { font-size: 11pt; page-break-after: avoid; }
  p, li, td, th { font-size: 11pt; }
  p, li { orphans: 3; widows: 3; }

  /* ── Links: show URLs ── */
  a {
    text-decoration: underline;
    color: #000 !important;
  }
  a[href^="http"]::after,
  a[href^="/"]::after {
    content: " (" attr(href) ")";
    font-size: 9pt;
    color: #555 !important;
    word-break: break-all;
  }
  /* Suppress URL for internal anchors and javascript */
  a[href^="#"]::after,
  a[href^="javascript"]::after,
  a[href=""]::after,
  a:not([href])::after {
    content: none;
  }

  /* ── Page break rules ── */
  .card,
  .card-glass,
  .card-bordered,
  .card-sm,
  .card-lg,
  .card-interactive,
  .project-card,
  .glass,
  .highlight,
  .guarantee-box,
  .trust-badge,
  table,
  figure,
  pre,
  blockquote {
    page-break-inside: avoid;
    break-inside: avoid;
  }
  .section,
  section {
    page-break-after: auto;
  }
  /* Avoid orphaned headings at page bottom */
  h1 + p, h2 + p, h3 + p, h4 + p,
  h1 + ul, h2 + ul, h3 + ul, h4 + ul {
    page-break-before: avoid;
  }
  /* ── Cards: simple borders ── */
  .card,
  .card-glass,
  .card-bordered,
  .card-sm,
  .card-lg,
  .card-interactive,
  .project-card {
    border: 1px solid #ccc !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    background: #fff !important;
    margin-bottom: 12pt;
    padding: 12pt 16pt;
  }
  .card::before,
  .card::after,
  .card-glass::before,
  .card-glass::after,
  .card-accent::before,
  .card-teal::before,
  .card-purple::before,
  .card-blue::before,
  .card-green::before {
    display: none !important;
  }

  /* ── Glass: remove blur/transparency ── */
  .glass {
    background: #fff !important;
    border: 1px solid #ccc !important;
    backdrop-filter: none !important;
    box-shadow: none !important;
  }

  /* ── Tables ── */
  table {
    border: 1px solid #ccc !important;
    page-break-inside: avoid;
    width: 100%;
  }
  th, td {
    border: 1px solid #ccc !important;
    padding: 6pt 10pt;
  }
  th {
    background: #eee !important;
    font-weight: 600;
  }
  .table-wrap {
    overflow: visible !important;
  }

  /* ── Legal content refinements ── */
  .legal-content {
    max-width: 100%;
    padding: 0;
  }
  .legal-content h2 {
    border-top: 1px solid #ccc;
    padding-top: 12pt;
  }
  .legal-content .last-updated {
    border-color: #ccc;
  }
  .legal-content .highlight {
    border-left: 3px solid #666;
    background: #f5f5f5 !important;
    padding: 12pt 16pt;
  }
  .legal-content .guarantee-box {
    border: 1px solid #ccc;
  }
  .legal-content code {
    border: 1px solid #ddd;
    background: #f5f5f5 !important;
  }

  /* ── Utilities: remove animations ── */
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }

  /* ── Page margins ── */
  @page {
    margin: 1in;
  }
}

/* ═══════════════════════════════════════════════
   Table Styling — Enterprise Dashboard
   ═══════════════════════════════════════════════ */
table {
  width: 100%; border-collapse: separate; border-spacing: 0;
  font-size: 14px; border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}
table thead { background: rgba(255,255,255,.03); }
table th {
  padding: 14px 18px; text-align: left; font-weight: 600; font-size: 11px;
  color: var(--dim); letter-spacing: .8px; text-transform: uppercase;
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap;
}
table td {
  padding: 14px 18px; color: var(--fg); font-size: 14px;
  border-bottom: 1px solid var(--border);
  transition: background .2s ease;
}
table tbody tr { transition: background .25s ease; }
table tbody tr:hover { background: rgba(255,255,255,.025); }
table tbody tr:last-child td { border-bottom: none; }
/* Striped rows */
table.striped tbody tr:nth-child(even) { background: rgba(255,255,255,.012); }
table.striped tbody tr:nth-child(even):hover { background: rgba(255,255,255,.03); }
/* Compact variant */
table.compact th, table.compact td { padding: 10px 14px; font-size: 13px; }
/* Status pills in tables */
table .status-pill {
  display: inline-block; padding: 3px 10px; border-radius: var(--radius-full);
  font-size: 11px; font-weight: 600; letter-spacing: .3px;
}
.status-pill.active  { background: rgba(48,209,88,.12); color: var(--green); }
.status-pill.pending { background: rgba(245,158,11,.12); color: var(--amber); }
.status-pill.error   { background: rgba(255,71,87,.12); color: var(--red); }
.status-pill.idle    { background: rgba(134,134,139,.1); color: var(--dim); }

/* Table wrapper for overflow */
.table-wrap {
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,.01);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.table-wrap table { border: none; border-radius: 0; }
.table-wrap table td:first-child, .table-wrap table th:first-child { padding-left: 24px; }
.table-wrap table td:last-child, .table-wrap table th:last-child { padding-right: 24px; }

/* ═══════════════════════════════════════════════
   Form Input Styling — Professional Grade
   ═══════════════════════════════════════════════ */
input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
input[type="number"],
input[type="search"],
input[type="tel"],
select,
textarea {
  width: 100%; padding: 12px 16px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-sm);
  color: var(--fg); font-family: var(--font); font-size: 15px;
  transition: all .25s cubic-bezier(.16,1,.3,1);
  outline: none; box-shadow: 0 1px 3px rgba(0,0,0,.15);
}
input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="url"]::placeholder,
input[type="password"]::placeholder,
input[type="number"]::placeholder,
input[type="search"]::placeholder,
input[type="tel"]::placeholder,
textarea::placeholder {
  color: rgba(134,134,139,.5);
}
input[type="text"]:hover,
input[type="email"]:hover,
input[type="url"]:hover,
input[type="password"]:hover,
input[type="number"]:hover,
input[type="search"]:hover,
input[type="tel"]:hover,
select:hover,
textarea:hover {
  border-color: rgba(255,255,255,.15);
  background: rgba(255,255,255,.04);
}
input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="search"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  background: rgba(255,107,53,.04);
  box-shadow: 0 0 0 3px rgba(255,107,53,.1), 0 1px 3px rgba(0,0,0,.15);
}
textarea { min-height: 100px; resize: vertical; line-height: 1.6; }
select {
  appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2386868b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  padding-right: 40px;
}
select option { background: var(--bg3); color: var(--fg); padding: 8px; }
label {
  display: block; font-size: 13px; font-weight: 500; color: var(--dim);
  margin-bottom: 6px; letter-spacing: .3px;
}
/* Input with icon */
.input-icon-wrap {
  position: relative; display: flex; align-items: center;
}
.input-icon-wrap input { padding-left: 42px; }
.input-icon-wrap .input-icon {
  position: absolute; left: 14px; color: var(--dim); pointer-events: none;
  font-size: 16px; transition: color .25s ease;
}
.input-icon-wrap input:focus + .input-icon,
.input-icon-wrap input:focus ~ .input-icon { color: var(--accent); }
/* Form group */
.form-group { margin-bottom: 20px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }
.form-note { font-size: 12px; color: var(--dim); margin-top: 8px; }
.form-submit { width: 100%; margin-top: 8px; }
/* Error state */
input.error, select.error, textarea.error {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(255,71,87,.1);
}
.field-hint { font-size: 11px; color: var(--green); font-weight: 500; margin-left: 8px; }

/* ═══════════════════════════════════════════════
   Loading Skeleton Animations
   ═══════════════════════════════════════════════ */
@keyframes skeletonShimmer {
  0% { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}
.skeleton,
.skeleton-card,
.skeleton-text,
.skeleton-heading,
.skeleton-avatar,
.skeleton-btn,
.skeleton-row,
.skeleton-cell {
  background: linear-gradient(90deg, rgba(255,255,255,.03) 0%, rgba(255,255,255,.06) 40%, rgba(255,255,255,.03) 80%);
  background-size: 400px 100%;
  animation: skeletonShimmer 1.8s ease-in-out infinite;
  pointer-events: none; user-select: none;
}
.skeleton { border-radius: var(--radius-xs); }
.skeleton-text { height: 14px; margin-bottom: 8px; border-radius: 4px; }
.skeleton-text:last-child { width: 70%; }
.skeleton-heading { height: 24px; width: 50%; margin-bottom: 16px; border-radius: 4px; }
.skeleton-avatar { width: 48px; height: 48px; border-radius: 50%; }
.skeleton-card { height: 180px; border-radius: var(--radius); }
.skeleton-btn { height: 44px; width: 140px; border-radius: 28px; }
.skeleton-row { height: 16px; margin-bottom: 10px; border-radius: 4px; }
.skeleton-row:last-child { width: 60%; }
.skeleton-table-row { display: flex; gap: 16px; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.skeleton-table-row .skeleton-cell { flex: 1; height: 14px; border-radius: 4px; }
.skeleton-table-row .skeleton-cell:last-child { flex: .6; }

/* Project card skeleton — border-only, animation inherited from .skeleton */
.project-card.skeleton { border: 1px solid rgba(255,255,255,.04); }
.project-card.skeleton .card-logo {
  width: 44px; height: 44px;
  background: linear-gradient(90deg, rgba(255,255,255,.03) 0%, rgba(255,255,255,.06) 40%, rgba(255,255,255,.03) 80%) !important;
  background-size: 400px 100%;
  animation: skeletonShimmer 1.8s ease-in-out infinite;
}

/* ═══════════════════════════════════════════════
   Interactive Element Transition Defaults
   ═══════════════════════════════════════════════ */
a, button, select, input, textarea, .card, .card-glass, .card-bordered, .stat,
.gbt-nav-links a, .gbt-footer a, .trust-badge {
  transition: all var(--duration-base) var(--ease-out-expo);
}
/* Nav links inherit their own timing */
.gbt-nav-links a { transition: color .2s ease, background .2s ease; }
/* Legal links */
.legal-content a { transition: color .2s ease, text-decoration-color .2s ease; }

/* ── Dark scrollbar for form selects ── */
select::-webkit-scrollbar { width: 6px; }
select::-webkit-scrollbar-track { background: var(--bg3); border-radius: 3px; }
select::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 3px; }

@media (max-width: 768px) {
  .legal-content { padding: 80px 20px 60px; }
}

/* ═══════════════════════════════════════════════
   Toast Notification
   ═══════════════════════════════════════════════ */
@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(100px) translateY(20px); }
  to   { opacity: 1; transform: translateX(0) translateY(0); }
}
@keyframes toastSlideOut {
  from { opacity: 1; transform: translateX(0) translateY(0); }
  to   { opacity: 0; transform: translateX(100px) translateY(20px); }
}
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  min-width: 280px;
  max-width: 420px;
  padding: 14px 20px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.04) inset;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--fg);
  animation: toastSlideIn .35s var(--ease-out-expo) forwards;
  pointer-events: auto;
}
.toast.toast-out { animation: toastSlideOut .25s var(--ease-out-expo) forwards; }
.toast-icon { flex-shrink: 0; width: 20px; height: 20px; }
.toast-success .toast-icon { color: var(--green); }
.toast-error .toast-icon { color: var(--red); }
.toast-warning .toast-icon { color: var(--amber); }
.toast-info .toast-icon { color: var(--blue); }
.toast-body { flex: 1; }
.toast-close {
  flex-shrink: 0;
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  border: none; background: none; color: var(--dim);
  cursor: pointer; border-radius: 6px; font-size: 16px;
  transition: color .2s ease;
}
.toast-close:hover { color: var(--fg); }

/* ═══════════════════════════════════════════════
   Loading Spinner
   ═══════════════════════════════════════════════ */
@keyframes spin {
  to { transform: rotate(360deg); }
}
.loading-spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 2px solid rgba(255,255,255,.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .6s linear infinite;
}
.loading-spinner-sm { width: 16px; height: 16px; border-width: 2px; }
.loading-spinner-lg { width: 40px; height: 40px; border-width: 3px; }
.loading-spinner-white { border-top-color: #fff; border-color: rgba(255,255,255,.15); }

/* Button spinner variant — smaller, white, for inline button use */
.btn-spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,.25);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  margin-right: 6px;
  vertical-align: middle;
}

/* ═══════════════════════════════════════════════
   GBT Design System v5.1 · 精细打磨增强层
   视觉统一 / 响应式韧性 / 交互动效 / 无障碍 / 60fps
   说明: 全部为增量规则, 不覆盖 v5.0 既有样式
   ═══════════════════════════════════════════════ */

/* ── 1. 语义 tokens 补全（统一细节色彩/排版）── */
:root {
  --leading-tight: 1.25;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;
  --tracking-tight: -.03em;
  --tracking-body: -.01em;
  --focus-ring: rgba(255,107,53,.6);
  --success-bg: rgba(48,209,88,.12);
  --success-fg: #34e062;
  --warning-bg: rgba(245,158,11,.12);
  --warning-fg: #fbbf24;
  --danger-bg: rgba(255,71,87,.12);
  --danger-fg: #ff6b81;
  --info-bg: rgba(41,151,255,.12);
  --info-fg: #4aa3ff;
  --surface-hover: rgba(255,255,255,.045);
}

/* ── 2. 跨设备媒体韧性（防溢出 / 清晰度）── */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
img, video, canvas, iframe, svg { max-width: 100%; }
svg { flex-shrink: 0; }
pre { overflow-x: auto; max-width: 100%; -webkit-overflow-scrolling: touch; }
.table-wrap { -webkit-overflow-scrolling: touch; }

/* ── 3. 图标尺寸规范（统一视觉节奏）── */
.icon-sm { width: 14px; height: 14px; }
.icon-md { width: 18px; height: 18px; }
.icon-lg { width: 22px; height: 22px; }
.icon-xl { width: 28px; height: 28px; }
.icon-2xl { width: 36px; height: 36px; }

/* ── 4. 交互动效增强（hover / active / focus-visible）── */
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent);
}
.btn:focus-visible::after { opacity: 1; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus-ring);
}
a.card, a.card-glass, a.card-bordered { display: block; text-decoration: none; }
a.card:hover, a.card-glass:hover, a.card-bordered:hover { text-decoration: none; }
.gbt-nav-links a { position: relative; }
.gbt-nav-links a::after {
  content: ''; position: absolute; left: 0; right: 100%; bottom: -3px; height: 1px;
  background: var(--accent); transition: right .25s var(--ease-out-expo);
}
.gbt-nav-links a:hover::after, .gbt-nav-links a.active::after { right: 0; }

/* ── 5. 语义状态标签（chips，统一圆角/边框/配色）── */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: var(--radius-full);
  font-size: 12px; font-weight: 600; line-height: 1.5;
  border: 1px solid transparent; white-space: nowrap;
}
.chip-success { background: var(--success-bg); color: var(--success-fg); border-color: rgba(48,209,88,.25); }
.chip-warning { background: var(--warning-bg); color: var(--warning-fg); border-color: rgba(245,158,11,.25); }
.chip-danger  { background: var(--danger-bg);  color: var(--danger-fg);  border-color: rgba(255,71,87,.25); }
.chip-info    { background: var(--info-bg);    color: var(--info-fg);    border-color: rgba(41,151,255,.25); }
.chip-neutral { background: rgba(255,255,255,.05); color: var(--fg);     border-color: var(--border-strong); }

/* ── 6. 圆角/阴影/边框统一修正（消除违和感）── */
.gbt-back-to-top, .toast-close { border-radius: var(--radius-sm); }
.gbt-footer a, .legal-content a { border-radius: 2px; }
::selection { border-radius: 2px; }
.card img, .card-glass img, .card-bordered img { border-radius: var(--radius-sm); }

/* ── 7. 响应式过渡（移动端细节，保持 v5.0 断点体系）── */
@media (max-width: 480px) {
  .chip { font-size: 11px; padding: 3px 10px; }
  .gbt-footer-bottom .gbt-back-to-top svg { width: 16px; height: 16px; }
}

/* ── 8. 无障碍：减少动效偏好（标准降级，确保关键信息不因动效丢失）── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .btn-glow { animation: none; box-shadow: 0 0 20px rgba(255,107,53,.2); }
  .animate-float, .loading-spinner, .btn-spinner, .skeleton-pulse, .animate-shimmer { animation: none; }
  .hero-orb { will-change: auto; }
}

/* ── 9. 性能：滚动/悬停合成层提示（60fps）── */
@media (prefers-reduced-motion: no-preference) {
  .btn:active { transform: scale(.97); }
  a.card:active, a.card-glass:active { transform: translateY(-2px) scale(.99); }
  .gbt-back-to-top:active { transform: scale(.92); }
}