/* ===== AI Token API Docs - Stylesheet ===== */
/* Modern dark/light theme, inspired by Stripe & OpenAI docs */

:root {
  /* Light theme */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-code: #1e293b;
  --bg-code-inline: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --text-code: #e2e8f0;
  --border: #e2e8f0;
  --border-hover: #cbd5e1;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: #eff6ff;
  --accent-gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --sidebar-width: 280px;
  --header-height: 64px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
  --radius: 8px;
  --radius-lg: 12px;
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-code: #0d1117;
  --bg-code-inline: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-code: #e2e8f0;
  --border: #334155;
  --border-hover: #475569;
  --accent: #60a5fa;
  --accent-hover: #93bbfd;
  --accent-light: #1e3a5f;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  transition: background 0.3s, color 0.3s;
}

/* ===== HEADER / NAV ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg-primary) 85%, transparent);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25em;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-gradient);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 14px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 0.9em;
  font-weight: 500;
  transition: all 0.2s;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--accent);
  background: var(--accent-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-toggle, .theme-toggle, .mobile-menu-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1em;
  transition: all 0.2s;
}

.search-toggle:hover, .theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  border: none;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9em;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 8px 20px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9em;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== LAYOUT ===== */
.page-wrapper {
  display: flex;
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
  padding: 24px 16px;
  border-right: 1px solid var(--border);
  background: var(--bg-secondary);
}

.sidebar-section {
  margin-bottom: 24px;
}

.sidebar-section-title {
  font-size: 0.75em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  padding: 0 12px;
  margin-bottom: 8px;
}

.sidebar-links {
  list-style: none;
}

.sidebar-links a {
  display: block;
  padding: 6px 12px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9em;
  border-radius: var(--radius);
  transition: all 0.2s;
}

.sidebar-links a:hover {
  color: var(--accent);
  background: var(--accent-light);
}

.sidebar-links a.active {
  color: var(--accent);
  background: var(--accent-light);
  font-weight: 600;
}

/* Main content */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-width: 0;
}

.content-area {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 48px;
}

/* ===== NO-SIDEBAR LAYOUT (landing pages) ===== */
.page-wrapper.full-width .main-content {
  margin-left: 0;
}

.page-wrapper.full-width .content-area {
  max-width: 1100px;
}

/* ===== SEARCH MODAL ===== */
.search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  align-items: flex-start;
  justify-content: center;
  padding-top: 120px;
}

.search-overlay.active {
  display: flex;
}

.search-modal {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 580px;
  max-height: 480px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.search-input-wrap {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.search-input-wrap input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1.1em;
  background: transparent;
  color: var(--text-primary);
}

.search-results {
  overflow-y: auto;
  max-height: 380px;
  padding: 8px;
}

.search-result-item {
  display: block;
  padding: 12px 16px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-primary);
  transition: background 0.15s;
}

.search-result-item:hover {
  background: var(--bg-tertiary);
}

.search-result-item .title {
  font-weight: 600;
  font-size: 0.95em;
}

.search-result-item .desc {
  font-size: 0.85em;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ===== TYPOGRAPHY ===== */
h1 {
  font-size: 2.5em;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.75em;
  font-weight: 700;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.3em;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
}

h4 {
  font-size: 1.1em;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 8px;
}

p {
  margin-bottom: 16px;
  color: var(--text-secondary);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ===== CODE BLOCKS ===== */
pre {
  background: var(--bg-code);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin: 16px 0 24px;
  overflow-x: auto;
  position: relative;
  border: 1px solid rgba(255,255,255,0.1);
}

pre code {
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
  font-size: 0.875em;
  line-height: 1.7;
  color: var(--text-code);
}

code {
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
}

:not(pre) > code {
  background: var(--bg-code-inline);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.875em;
  color: var(--accent);
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0,0,0,0.3);
  padding: 8px 16px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  margin-bottom: -1px;
}

.code-lang {
  font-size: 0.8em;
  color: var(--text-tertiary);
  font-weight: 600;
  text-transform: uppercase;
}

.copy-btn {
  background: rgba(255,255,255,0.1);
  border: none;
  color: var(--text-tertiary);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.8em;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover {
  background: rgba(255,255,255,0.2);
  color: white;
}

.copy-btn.copied {
  color: var(--success);
}

/* Code syntax highlighting */
.token-keyword { color: #c678dd; }
.token-string { color: #98c379; }
.token-comment { color: #5c6370; font-style: italic; }
.token-function { color: #61afef; }
.token-number { color: #d19a66; }
.token-operator { color: #56b6c2; }
.token-class { color: #e5c07b; }
.token-property { color: #e06c75; }
.token-url { color: #61afef; text-decoration: underline; }

/* ===== ENDPOINT CARDS ===== */
.endpoint-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin: 24px 0;
  overflow: hidden;
}

.endpoint-header {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.method-badge {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  min-width: 60px;
  text-align: center;
}

.method-get {
  background: #dbeafe;
  color: #1d4ed8;
}

.method-post {
  background: #d1fae5;
  color: #065f46;
}

[data-theme="dark"] .method-get {
  background: #1e3a5f;
  color: #93bbfd;
}

[data-theme="dark"] .method-post {
  background: #064e3b;
  color: #6ee7b7;
}

.endpoint-path {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.95em;
  font-weight: 500;
  color: var(--text-primary);
}

.endpoint-body {
  padding: 20px;
}

/* ===== PARAMETER TABLE ===== */
.param-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.param-table th {
  text-align: left;
  padding: 10px 16px;
  font-size: 0.8em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  border-bottom: 2px solid var(--border);
}

.param-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9em;
  vertical-align: top;
}

.param-name {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  color: var(--accent);
}

.param-type {
  font-size: 0.85em;
  color: var(--text-tertiary);
}

.param-required {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 0.75em;
  font-weight: 600;
}

.param-required.required {
  background: #fef2f2;
  color: #dc2626;
}

.param-required.optional {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
}

[data-theme="dark"] .param-required.required {
  background: #450a0a;
  color: #fca5a5;
}

/* ===== CARDS / CALLOUTS ===== */
.callout {
  padding: 16px 20px;
  border-radius: var(--radius);
  margin: 20px 0;
  border-left: 4px solid;
  font-size: 0.95em;
}

.callout-info {
  background: #eff6ff;
  border-color: #3b82f6;
  color: #1e40af;
}

.callout-warning {
  background: #fffbeb;
  border-color: #f59e0b;
  color: #92400e;
}

.callout-success {
  background: #ecfdf5;
  border-color: #10b981;
  color: #065f46;
}

.callout-tip {
  background: #f5f3ff;
  border-color: #8b5cf6;
  color: #5b21b6;
}

[data-theme="dark"] .callout-info {
  background: #1e3a5f;
  color: #93bbfd;
}

[data-theme="dark"] .callout-warning {
  background: #451a03;
  color: #fcd34d;
}

[data-theme="dark"] .callout-success {
  background: #064e3b;
  color: #6ee7b7;
}

[data-theme="dark"] .callout-tip {
  background: #2e1065;
  color: #c4b5fd;
}

.callout-title {
  font-weight: 700;
  margin-bottom: 4px;
}

/* ===== MODEL CARDS ===== */
.model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.model-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all 0.2s;
}

.model-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.model-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.model-name {
  font-weight: 700;
  font-size: 1.05em;
  color: var(--text-primary);
}

.model-tag {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75em;
  font-weight: 600;
  background: var(--accent-light);
  color: var(--accent);
}

.model-desc {
  font-size: 0.9em;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.model-meta {
  display: flex;
  gap: 16px;
  font-size: 0.8em;
  color: var(--text-tertiary);
}

.model-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ===== PRICING CARDS ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin: 32px 0;
}

.pricing-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: all 0.3s;
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.pricing-card.featured::before {
  content: 'MOST POPULAR';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-gradient);
  color: white;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.7em;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.pricing-card h3 {
  font-size: 1.2em;
  margin-bottom: 8px;
  margin-top: 0;
}

.pricing-amount {
  font-size: 2.8em;
  font-weight: 800;
  color: var(--text-primary);
  margin: 12px 0;
}

.pricing-amount small {
  font-size: 0.35em;
  color: var(--text-tertiary);
  font-weight: 400;
}

.pricing-credit {
  color: var(--success);
  font-weight: 600;
  margin-bottom: 16px;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin: 20px 0;
}

.pricing-features li {
  padding: 6px 0;
  font-size: 0.9em;
  color: var(--text-secondary);
}

.pricing-features li::before {
  content: '\2713';
  color: var(--success);
  font-weight: 700;
  margin-right: 8px;
}

/* ===== STATUS INDICATORS ===== */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.9em;
  font-weight: 600;
}

.status-operational {
  background: #ecfdf5;
  color: #065f46;
}

.status-degraded {
  background: #fffbeb;
  color: #92400e;
}

.status-outage {
  background: #fef2f2;
  color: #991b1b;
}

[data-theme="dark"] .status-operational { background: #064e3b; color: #6ee7b7; }
[data-theme="dark"] .status-degraded { background: #451a03; color: #fcd34d; }
[data-theme="dark"] .status-outage { background: #450a0a; color: #fca5a5; }

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.status-operational .status-dot { background: #10b981; }
.status-degraded .status-dot { background: #f59e0b; }
.status-outage .status-dot { background: #ef4444; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ===== HERO SECTION ===== */
.hero {
  text-align: center;
  padding: 80px 0 60px;
}

.hero h1 {
  font-size: 3.5em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}

.hero .subtitle {
  font-size: 1.25em;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-actions .btn-primary {
  padding: 12px 28px;
  font-size: 1em;
}

/* ===== TABS ===== */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  gap: 0;
  overflow-x: auto;
}

.tab-btn {
  padding: 12px 20px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9em;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.tab-btn:hover {
  color: var(--accent);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* ===== PROMO BANNER ===== */
.promo-banner {
  background: var(--accent-gradient);
  color: white;
  padding: 20px 28px;
  border-radius: var(--radius-lg);
  margin: 32px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.promo-banner h3 {
  color: white;
  margin: 0;
  font-size: 1.2em;
}

.promo-banner p {
  color: rgba(255,255,255,0.85);
  margin: 4px 0 0;
}

.promo-code {
  background: rgba(255,255,255,0.2);
  padding: 8px 20px;
  border-radius: var(--radius);
  font-family: monospace;
  font-weight: 700;
  font-size: 1.1em;
  border: 1px solid rgba(255,255,255,0.3);
}

/* ===== FOOTER ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  margin-top: 60px;
  background: var(--bg-secondary);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
}

.footer-section h4 {
  margin-top: 0;
  font-size: 0.9em;
  color: var(--text-primary);
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 8px;
}

.footer-section a {
  color: var(--text-secondary);
  font-size: 0.9em;
}

.footer-bottom {
  max-width: 1100px;
  margin: 32px auto 0;
  padding: 20px 24px 0;
  border-top: 1px solid var(--border);
  font-size: 0.85em;
  color: var(--text-tertiary);
  text-align: center;
}

/* ===== FAQ ===== */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-secondary);
  cursor: pointer;
  font-weight: 600;
  color: var(--text-primary);
  transition: background 0.2s;
}

.faq-question:hover {
  background: var(--bg-tertiary);
}

.faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.open .faq-answer {
  padding: 16px 20px;
  max-height: 500px;
}

.faq-toggle {
  font-size: 1.2em;
  transition: transform 0.3s;
  color: var(--text-tertiary);
}

.faq-item.open .faq-toggle {
  transform: rotate(45deg);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .sidebar {
    display: none;
  }
  .main-content {
    margin-left: 0 !important;
  }
  .content-area {
    padding: 24px 20px;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2em; }
  .hero h1 { font-size: 2.5em; }
  .nav-links { display: none; }
  .mobile-menu-toggle { display: flex; }
  .pricing-grid { grid-template-columns: 1fr; }
  .model-grid { grid-template-columns: 1fr; }
  .promo-banner { flex-direction: column; text-align: center; }
  .hero-actions { flex-direction: column; align-items: center; }
  .header-actions .btn-primary { display: none; }
}

/* ===== UTILITIES ===== */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }
.hidden { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* Scrollbar styling */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-tertiary); }

/* Page transition */
.page-wrapper {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}