/* ============================================================
   Bitget V19 — Fees & Cost Transparency
   Design System: "Fee Transparency Ledger"
   Distinct from V1–V18: document/statement-inspired layout,
   monospace fee labels, teal accent (#2DD4BF), JetBrains Mono.
   ============================================================ */

/* ─── Design Tokens ─── */
:root {
  /* Color — Background */
  --bg-primary: #0B1120;
  --bg-surface: #131B2E;
  --bg-card: #1A2440;
  --bg-elevated: #0F1626;
  --bg-hover: #1E2A48;

  /* Color — Accent */
  --accent-primary: #2DD4BF;
  --accent-primary-dim: rgba(45, 212, 191, 0.12);
  --accent-primary-glow: rgba(45, 212, 191, 0.28);
  --accent-primary-hover: #5EEAD4;
  --accent-secondary: #F59E0B;
  --accent-secondary-dim: rgba(245, 158, 11, 0.12);
  --accent-risk: #F87171;
  --accent-risk-dim: rgba(248, 113, 113, 0.10);
  --accent-info: #38BDF8;

  /* Color — Text */
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-inverse: #0B1120;

  /* Color — Border */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);
  --border-accent: rgba(45, 212, 191, 0.30);

  /* Typography */
  --font-display: 'Manrope', 'PingFang SC', 'Hiragino Sans', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
  --font-body: 'Inter', 'PingFang SC', 'Hiragino Sans', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 26px;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 24px var(--accent-primary-glow);

  /* Layout */
  --max-width: 1200px;
  --header-height: 64px;

  /* Transition */
  --t-fast: 120ms;
  --t-base: 200ms;
  --t-slow: 350ms;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }

/* ─── Container ─── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.container-narrow { max-width: 820px; }

/* ─── Skip Link ─── */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent-primary);
  color: var(--text-inverse);
  padding: var(--space-sm) var(--space-md);
  font-weight: 600;
  font-size: 14px;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 1000;
  transition: top var(--t-fast);
}
.skip-link:focus { top: 0; }

/* ─── Focus ─── */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

/* ─── Header / Navigation ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 17, 32, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  height: var(--header-height);
  display: flex;
  align-items: center;
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  width: 100%;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}
.brand .logo-svg { width: 28px; height: 28px; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
}
.brand-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--accent-primary);
  background: var(--accent-primary-dim);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-accent);
  white-space: nowrap;
}
.nav-links {
  display: flex;
  gap: var(--space-md);
  margin-left: auto;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--t-fast);
  white-space: nowrap;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-actions {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--t-base);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ─── Language Switcher ─── */
.lang-switcher { position: relative; }
.lang-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
  transition: all var(--t-fast);
}
.lang-trigger:hover { border-color: var(--border-accent); color: var(--text-primary); }
.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  min-width: 160px;
  max-height: 320px;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  display: grid;
  gap: 2px;
}
.lang-dropdown[hidden] { display: none; }
.lang-option {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text-secondary);
  border-radius: var(--radius-xs);
  transition: all var(--t-fast);
}
.lang-option:hover { background: var(--bg-hover); color: var(--text-primary); }
.lang-option.is-current { color: var(--accent-primary); font-weight: 600; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  line-height: 1;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--t-base);
  white-space: nowrap;
  text-decoration: none;
}
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-primary {
  background: var(--accent-primary);
  color: var(--text-inverse);
  border-color: var(--accent-primary);
}
.btn-primary:hover {
  background: var(--accent-primary-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  color: var(--accent-secondary);
  border-color: var(--accent-secondary);
}
.btn-secondary:hover {
  background: var(--accent-secondary-dim);
  border-color: var(--accent-secondary);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-default);
}
.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background: var(--bg-hover);
}
.btn[data-register-pending="true"] {
  opacity: 0.85;
  cursor: not-allowed;
}

/* ─── Hero Section ─── */
.hero-section {
  position: relative;
  padding: var(--space-3xl) 0 var(--space-2xl);
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 0%, var(--accent-primary-dim), transparent 60%),
    radial-gradient(ellipse 40% 40% at 80% 20%, rgba(245, 158, 11, 0.06), transparent 60%);
  pointer-events: none;
}
.hero-grid-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border-subtle) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent 70%);
  opacity: 0.4;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: var(--space-2xl);
  align-items: start;
}
.hero-content { max-width: 600px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--accent-primary);
  background: var(--accent-primary-dim);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-accent);
  margin-bottom: var(--space-lg);
}
.hero-content h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
}
.hero-subtitle {
  font-size: clamp(18px, 2.5vw, 22px);
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: var(--space-md);
  line-height: 1.4;
}
.hero-desc {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}
.hero-ctas {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}
.hero-caution {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--accent-secondary);
  line-height: 1.5;
  max-width: 480px;
}
.hero-caution svg { flex-shrink: 0; margin-top: 2px; }

/* ─── Fee Ledger Panel (Hero Visual) ─── */
.hero-ledger {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.hero-ledger::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
}
.ledger-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
}
.ledger-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary-glow);
  flex-shrink: 0;
}
.ledger-title {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}
.ledger-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--accent-secondary);
  background: var(--accent-secondary-dim);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.ledger-body { padding: var(--space-sm) 0; }
.ledger-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 12px var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--t-fast);
}
.ledger-row:last-child { border-bottom: none; }
.ledger-row:hover { background: var(--bg-hover); }
.ledger-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent-primary-dim);
  border-radius: var(--radius-sm);
  color: var(--accent-primary);
  flex-shrink: 0;
}
.ledger-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
}
.ledger-value {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--accent-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.ledger-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
}
.ledger-note {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

/* ─── Sections ─── */
.section {
  padding: var(--space-2xl) 0;
}
.section-alt {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-xl);
}
.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}
.section-eyebrow-risk { color: var(--accent-risk); }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}
.section-sub {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ─── Section CTA Strip ─── */
.section-cta-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

/* ─── Fee Types Grid ─── */
.fee-types-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}
.fee-type-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--t-base);
  position: relative;
}
.fee-type-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.fee-type-num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-primary);
  opacity: 0.4;
  line-height: 1;
  flex-shrink: 0;
}
.fee-type-body { flex: 1; }
.fee-type-body h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}
.fee-type-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.fee-type-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--accent-secondary);
  background: var(--accent-secondary-dim);
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(245, 158, 11, 0.2);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ─── Cost Awareness Cards ─── */
.cost-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.cost-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition: all var(--t-base);
}
.cost-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
}
.cost-card-head {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.cost-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--accent-primary-dim);
  border-radius: var(--radius-sm);
  color: var(--accent-primary);
  flex-shrink: 0;
}
.cost-card-head h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
}
.cost-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  flex: 1;
}
.cost-card-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
  padding: var(--space-sm);
  background: var(--bg-elevated);
  border-radius: var(--radius-xs);
  border-left: 2px solid var(--accent-secondary);
}
.cost-card-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: auto;
}

/* ─── Steps Timeline ─── */
.steps-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 760px;
  margin: 0 auto;
}
.step-card {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--t-base);
  position: relative;
}
.step-card:hover {
  border-color: var(--border-accent);
  transform: translateX(4px);
}
.step-card::before {
  content: '';
  position: absolute;
  left: 35px;
  top: 100%;
  width: 2px;
  height: var(--space-md);
  background: var(--border-default);
}
.step-card:last-child::before { display: none; }
.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--accent-primary);
  color: var(--text-inverse);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
  box-shadow: 0 0 12px var(--accent-primary-glow);
}
.step-body { flex: 1; }
.step-body h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}
.step-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-sm);
}
.step-actions {
  display: flex;
  gap: var(--space-sm);
}

/* ─── App Fee Awareness ─── */
.app-awareness-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-xl);
  align-items: start;
}
.app-benefits {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.app-benefit-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-md);
  border-left: 2px solid var(--accent-primary);
  background: var(--bg-elevated);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.app-benefit-num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-primary);
  opacity: 0.5;
  line-height: 1;
  flex-shrink: 0;
}
.app-benefit-item h3 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}
.app-benefit-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.app-cta-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
}
.app-qr-box { margin-bottom: var(--space-lg); }
.app-qr-box img {
  width: 200px;
  height: 200px;
  margin: 0 auto var(--space-sm);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
}
.app-qr-label {
  font-size: 13px;
  color: var(--text-secondary);
}
.app-download-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.app-caution-note {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ─── Risk Section ─── */
.risk-section {
  background: var(--bg-elevated);
  border-top: 1px solid rgba(248, 113, 113, 0.15);
  border-bottom: 1px solid rgba(248, 113, 113, 0.15);
}
.risk-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}
.risk-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  border-top: 2px solid var(--accent-risk);
}
.risk-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--accent-risk-dim);
  border-radius: var(--radius-sm);
  color: var(--accent-risk);
}
.risk-card h3 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
}
.risk-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.risk-banner {
  background: var(--accent-risk-dim);
  border: 1px solid rgba(248, 113, 113, 0.25);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  text-align: center;
}
.risk-banner h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-risk);
  margin-bottom: var(--space-sm);
}
.risk-banner p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 680px;
  margin: 0 auto;
}

/* ─── FAQ ─── */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--t-base);
}
.faq-item[open] { border-color: var(--border-accent); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: var(--accent-primary);
  transition: transform var(--t-base);
}
.faq-item[open] .faq-q::after { transform: rotate(45deg); }
.faq-a {
  padding: 0 var(--space-lg) var(--space-md);
}
.faq-a p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ─── Final CTA ─── */
.final-cta-section {
  padding: var(--space-3xl) 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 50%, var(--accent-primary-dim), transparent 70%),
    var(--bg-primary);
}
.final-cta-box {
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.final-cta-box h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}
.final-cta-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin: var(--space-xl) 0 var(--space-md);
  flex-wrap: wrap;
}
.register-notice-text {
  font-size: 13px;
  color: var(--accent-secondary);
  margin-bottom: var(--space-md);
}
.final-cta-official-link {
  margin-top: var(--space-md);
}
.final-cta-official-link a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--t-fast);
}
.final-cta-official-link a:hover { color: var(--accent-primary); }

/* ─── Footer ─── */
.site-footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-xl) 0;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.footer-brand .logo-svg { width: 24px; height: 24px; }
.footer-tagline {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
}
.footer-links a {
  font-size: 13px;
  color: var(--text-secondary);
  transition: color var(--t-fast);
}
.footer-links a:hover { color: var(--accent-primary); }
.footer-disclaimer {
  font-size: 12px;
  color: var(--text-muted);
  max-width: 720px;
  line-height: 1.6;
}
.footer-risk {
  font-size: 12px;
  color: var(--text-muted);
  max-width: 720px;
  line-height: 1.6;
}
.footer-rights {
  font-size: 12px;
  color: var(--text-muted);
}

/* ─── Sticky CTA ─── */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: none;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(11, 17, 32, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-default);
  z-index: 90;
}
.sticky-cta.is-visible { display: flex; }
.sticky-cta .btn { flex: 1; }

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .hero-ledger { max-width: 480px; }
  .app-awareness-layout { grid-template-columns: 1fr; }
  .cost-cards-grid { grid-template-columns: repeat(2, 1fr); }
  .risk-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --space-3xl: 64px; --space-2xl: 48px; }
  .nav-links { display: none; }
  .nav-actions .btn-ghost { display: none; }
  .menu-toggle { display: flex; }
  .nav-links.is-open {
    display: flex;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-default);
    padding: var(--space-md);
    gap: var(--space-sm);
  }
  .nav-links.is-open a {
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
  }
  .fee-types-grid { grid-template-columns: 1fr; }
  .cost-cards-grid { grid-template-columns: 1fr; }
  .risk-grid { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; }
  .step-card { flex-direction: column; gap: var(--space-md); }
  .step-card::before { display: none; }
  .final-cta-buttons { flex-direction: column; }
  .final-cta-buttons .btn { width: 100%; }
  .sticky-cta.is-visible { display: flex; }
  body { padding-bottom: 60px; }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-md); }
  .hero-content h1 { font-size: 28px; }
  .ledger-row { padding: 10px var(--space-md); }
  .fee-type-card { flex-direction: column; gap: var(--space-sm); }
}

/* ─── RTL Support ─── */
[dir="rtl"] {
  text-align: right;
}
[dir="rtl"] .fee-type-card { flex-direction: row-reverse; }
[dir="rtl"] .step-card { flex-direction: row-reverse; }
[dir="rtl"] .step-card:hover { transform: translateX(-4px); }
[dir="rtl"] .step-card::before { left: auto; right: 35px; }
[dir="rtl"] .app-benefit-item {
  border-left: none;
  border-right: 2px solid var(--accent-primary);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}
[dir="rtl"] .cost-card-note { border-left: none; border-right: 2px solid var(--accent-secondary); }
[dir="rtl"] .lang-dropdown { right: auto; left: 0; }
[dir="rtl"] .nav-links { margin-left: 0; margin-right: auto; }

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}