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

:root {
  --bg: #0f1117;
  --bg-card: #1a1d27;
  --bg-input: #252833;
  --text: #e8eaf0;
  --text-muted: #8b8fa3;
  --accent: #f59e0b;
  --accent-hover: #fbbf24;
  --success: #22c55e;
  --amber: #f59e0b;
  --rose: #f43f5e;
  --blue: #3b82f6;
  --purple: #a78bfa;
  --border: #2a2d3a;
  --code-bg: #161822;
  --radius: 8px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Site Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  text-decoration: none;
}

.header-logo:hover {
  color: var(--text);
}

.header-logo svg {
  flex-shrink: 0;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.header-nav a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
  text-decoration: none;
}

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

.btn.btn-sm {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 12px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
}

/* Hero */
.hero {
  text-align: center;
  padding: 120px 0 80px;
}

.logo-mark {
  margin-bottom: 20px;
}

.logo-mark svg {
  filter: drop-shadow(0 0 20px rgba(245, 158, 11, 0.3));
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent), #fcd34d);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-signup-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  max-width: 460px;
  margin: 0 auto 12px;
}

.hero-signup-form input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 1rem;
  color: var(--text);
  outline: none;
  font-family: inherit;
}

.hero-signup-form input::placeholder {
  color: var(--text-muted);
}

.hero-signup-form input:focus {
  border-color: var(--accent);
}

.hero-signup-error {
  max-width: 460px;
  margin: 0 auto;
  text-align: center;
}

.hero-signup-success {
  max-width: 460px;
  margin: 12px auto 0;
  text-align: center;
}

.hero-secondary-cta {
  margin-top: 16px;
  display: flex;
  justify-content: center;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #0f1117;
  font-size: 1rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}

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

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
}

.btn-outline:hover {
  background: rgba(245, 158, 11, 0.1);
}

/* Shared section styles */
.how-it-works,
.policies,
.tiers,
.features,
.quickstart,
.signup,
.pricing {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.how-it-works h2,
.policies h2,
.tiers h2,
.features h2,
.quickstart h2,
.signup h2,
.pricing h2 {
  text-align: center;
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  font-size: 1rem;
}

.section-subtitle code,
.card code,
.tier-table code,
.policy-desc code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.85em;
}

/* 5-Stage Pipeline */
.pipeline {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}

.pipeline-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  width: 170px;
  text-align: center;
}

.step-number {
  width: 32px;
  height: 32px;
  line-height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #0f1117;
  font-weight: 700;
  font-size: 0.9rem;
  margin: 0 auto 12px;
}

.step-blue { background: var(--blue); }
.step-purple { background: var(--purple); }
.step-amber { background: var(--amber); }
.step-green { background: var(--success); }
.step-rose { background: var(--rose); }

.pipeline-step h3 {
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.pipeline-step p {
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.5;
}

.pipeline-arrow {
  font-size: 1.5rem;
  color: var(--text-muted);
  padding: 32px 8px 0;
  flex-shrink: 0;
}

/* Eval Stats Strip */
.eval-stats {
  padding: 56px 0 48px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(245,158,11,0.04) 0%, transparent 100%);
}

.eval-stats-label {
  text-align: center;
  font-size: 0.75rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.eval-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

@media (max-width: 640px) {
  .eval-stats-grid {
    grid-template-columns: 1fr;
  }
}

.eval-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px 20px;
  text-align: center;
  transition: border-color 0.2s;
}

.eval-stat-card:hover {
  border-color: rgba(245,158,11,0.3);
}

.eval-stat-card-highlight {
  border-color: rgba(245,158,11,0.4);
  background: linear-gradient(135deg, rgba(245,158,11,0.08) 0%, var(--bg-card) 100%);
}

.eval-stat-number {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  font-family: "Inter", sans-serif;
  margin-bottom: 8px;
}

.eval-stat-unit {
  font-size: 1.5rem;
  font-weight: 600;
  opacity: 0.8;
}

.eval-stat-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.eval-stat-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.eval-latency-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 14px 0 0;
}

.eval-latency-label {
  font-weight: 500;
  color: var(--text-muted);
}

.eval-latency-sep {
  color: var(--border);
}

.eval-latency-tier {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text);
}

.eval-tier-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.eval-latency-fast .eval-tier-dot   { background: #22c55e; }
.eval-latency-standard .eval-tier-dot { background: var(--amber); }
.eval-latency-reasoning .eval-tier-dot { background: var(--purple); }

/* Routing Demo */
.routing-demo {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.routing-demo h2 {
  text-align: center;
  font-size: 1.75rem;
  margin-bottom: 8px;
}

/* Terminal chrome */
.demo-terminal {
  max-width: 680px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.term-titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #1e2130;
  border-bottom: 1px solid var(--border);
}

.term-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.term-dot-red { background: #ff5f57; }
.term-dot-yellow { background: #febc2e; }
.term-dot-green { background: #28c840; }

.term-title {
  margin-left: 8px;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: "JetBrains Mono", monospace;
}

.demo-main {
  padding: 28px 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Prompt input area */
.demo-prompt-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  margin-bottom: 6px;
}

.demo-prompt {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  color: var(--text);
  min-height: 48px;
  position: relative;
}

.demo-prompt .cursor {
  display: inline-block;
  width: 2px;
  height: 1.15em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: demo-blink 0.8s step-end infinite;
}

@keyframes demo-blink {
  50% { opacity: 0; }
}

/* Pipeline chips */
.demo-pipeline {
  display: flex;
  align-items: center;
  gap: 0;
  position: relative;
}

.demo-chip {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: background 0.3s, color 0.3s, border-color 0.3s, box-shadow 0.3s;
  white-space: nowrap;
  z-index: 1;
}

.demo-chip.active {
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--amber);
  color: var(--amber);
}

.demo-chip.done {
  background: rgba(34, 197, 94, 0.12);
  border-color: var(--success);
  color: var(--success);
}

.demo-connector {
  width: 32px;
  height: 2px;
  background: var(--border);
  flex-shrink: 0;
  position: relative;
  transition: background 0.3s;
}

.demo-connector.filled {
  background: var(--success);
}

/* Particle dot */
.demo-particle {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber);
  opacity: 0;
  pointer-events: none;
  z-index: 2;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              background 0.3s, box-shadow 0.3s;
}

.demo-particle.visible {
  opacity: 1;
}

.demo-particle.tier-fast {
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
}

.demo-particle.tier-standard {
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber);
}

.demo-particle.tier-reasoning {
  background: var(--rose);
  box-shadow: 0 0 10px var(--rose);
}

/* Tier cards row */
.demo-tiers {
  display: flex;
  gap: 12px;
}

.demo-tier {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 12px;
  text-align: center;
  transition: border-color 0.3s, box-shadow 0.4s;
}

.demo-tier-icon {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 4px;
  vertical-align: middle;
}

.demo-tier[data-tier="fast"] .demo-tier-icon { background: var(--success); }
.demo-tier[data-tier="standard"] .demo-tier-icon { background: var(--amber); }
.demo-tier[data-tier="reasoning"] .demo-tier-icon { background: var(--rose); }

.demo-tier-name {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.demo-tier-model {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.demo-tier.glow-fast {
  border-color: var(--success);
  box-shadow: 0 0 20px rgba(34, 197, 94, 0.2);
}

.demo-tier.glow-standard {
  border-color: var(--amber);
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.2);
}

.demo-tier.glow-reasoning {
  border-color: var(--rose);
  box-shadow: 0 0 20px rgba(244, 63, 94, 0.2);
}

/* Metadata bar */
.demo-meta {
  display: flex;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: "JetBrains Mono", monospace;
  opacity: 0;
  transition: opacity 0.4s;
}

.demo-meta.visible {
  opacity: 1;
}

.demo-meta span::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
  margin-right: 6px;
  vertical-align: middle;
}

/* Controls footer */
.demo-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  border-top: 1px solid var(--border);
  background: rgba(26, 29, 39, 0.6);
}

.demo-send {
  background: var(--accent);
  color: #0f1117;
  border: none;
  border-radius: var(--radius);
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
  font-family: inherit;
}

.demo-send:hover:not(:disabled) {
  background: var(--accent-hover);
}

.demo-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.demo-autoplay {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
  background: none;
  border: none;
  font-family: inherit;
  padding: 0;
}

.demo-autoplay input {
  accent-color: var(--accent);
}

.demo-counter {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: "JetBrains Mono", monospace;
}

/* Mobile responsive overrides */
@media (max-width: 640px) {
  .demo-main {
    padding: 20px 16px 16px;
  }

  .demo-pipeline {
    flex-direction: column;
    gap: 0;
  }

  .demo-connector {
    width: 2px;
    height: 20px;
  }

  .demo-particle {
    display: none;
  }

  .demo-tiers {
    flex-direction: column;
  }

  .demo-meta {
    flex-direction: column;
    gap: 6px;
  }

  .demo-controls {
    padding: 12px 16px;
    flex-wrap: wrap;
  }
}

/* Agent Benefits */
.agent-benefits {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.agent-benefits h2 {
  text-align: center;
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.benefit-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.benefit-tier {
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.benefit-model {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: auto;
  font-family: "JetBrains Mono", monospace;
}

.benefit-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.benefit-dot-fast { background: var(--success); }
.benefit-dot-standard { background: var(--amber); }
.benefit-dot-reasoning { background: var(--rose); }

.benefit-terminal {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.benefit-line {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.benefit-prompt {
  color: var(--accent);
  margin-right: 6px;
}

.benefit-stats {
  display: flex;
  gap: 12px;
}

.benefit-stat {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: "JetBrains Mono", monospace;
  background: var(--bg-input);
  padding: 3px 8px;
  border-radius: 4px;
}

.benefit-stat-highlight {
  color: var(--success);
}

.benefit-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.benefit-fast { border-top: 2px solid var(--success); }
.benefit-standard { border-top: 2px solid var(--amber); }
.benefit-reasoning { border-top: 2px solid var(--rose); }

.benefits-cta {
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
}

.benefits-cta strong {
  color: var(--success);
}

@media (max-width: 900px) {
  .benefits-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .benefits-grid {
    grid-template-columns: 1fr;
  }
}

/* Routing Policies */
.policy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.policy-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  position: relative;
}

.policy-highlight {
  border-color: var(--amber);
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.08);
}

.policy-name {
  font-family: "JetBrains Mono", monospace;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.policy-green { color: var(--success); }
.policy-amber { color: var(--amber); }
.policy-purple { color: var(--purple); }
.policy-blue { color: var(--blue); }

.policy-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--amber);
  color: #0f1117;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.policy-weights {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.weight-bar {
  display: flex;
  align-items: center;
  gap: 8px;
}

.weight-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  width: 64px;
  flex-shrink: 0;
}

.bar {
  flex: 1;
  height: 6px;
  background: var(--bg-input);
  border-radius: 3px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.policy-green .bar-fill,
.policy-card:nth-child(1) .bar-fill { background: var(--success); }
.policy-amber .bar-fill,
.policy-card:nth-child(2) .bar-fill { background: var(--amber); }
.policy-purple .bar-fill,
.policy-card:nth-child(3) .bar-fill { background: var(--purple); }
.policy-blue .bar-fill,
.policy-card:nth-child(4) .bar-fill { background: var(--blue); }

.weight-val {
  font-size: 0.7rem;
  color: var(--text-muted);
  width: 28px;
  text-align: right;
  flex-shrink: 0;
  font-family: "JetBrains Mono", monospace;
}

.policy-desc {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Model Tiers */
.tier-table-wrapper {
  overflow-x: auto;
}

.tier-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.tier-table th {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 2px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tier-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.tier-table tbody tr:hover {
  background: rgba(245, 158, 11, 0.04);
}

.tier-highlight {
  background: rgba(245, 158, 11, 0.08);
}

.tier-highlight td {
  border-bottom-color: var(--accent);
}

.cost {
  font-weight: 600;
}

.cost-low { color: var(--success); }
.cost-mid { color: var(--amber); }
.cost-high { color: var(--rose); }
.cost-auto {
  background: linear-gradient(135deg, var(--accent), #fcd34d);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Features */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Quickstart / Tabs */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--border);
}

.tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 10px 20px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
  font-family: inherit;
}

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

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

.tab-content {
  display: none;
  padding-top: 20px;
}

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

.tab-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  overflow-x: auto;
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* Signup */
.signup {
  text-align: center;
}

.signup > .container > p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

.signup-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  max-width: 460px;
  margin: 0 auto;
}

.signup-form input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 1rem;
  color: var(--text);
  outline: none;
  font-family: inherit;
}

.signup-form input::placeholder {
  color: var(--text-muted);
}

.signup-form input:focus {
  border-color: var(--accent);
}

/* Key result */
.key-result {
  display: none;
  max-width: 600px;
  margin: 24px auto 0;
  text-align: left;
}

.key-result.visible {
  display: block;
}

.key-display {
  background: var(--code-bg);
  border: 1px solid var(--success);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.key-display code {
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.9rem;
  word-break: break-all;
  color: var(--success);
}

.key-display button {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 6px 12px;
  cursor: pointer;
  font-size: 0.8rem;
  white-space: nowrap;
}

.key-warning {
  color: var(--amber);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.error-msg {
  color: var(--rose);
  font-size: 0.9rem;
  margin-top: 12px;
  display: none;
}

.error-msg.visible {
  display: block;
}

/* Pricing */
.pricing-tiers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}

.pricing-card h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.pricing-card .price {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.pricing-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.pricing-card .badge {
  display: inline-block;
  background: var(--bg-input);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  margin-top: 8px;
}

/* Pricing Teaser (index.html) */
.pricing-teaser {
  text-align: center;
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.pricing-teaser h2 {
  text-align: center;
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.pricing-teaser p {
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 1rem;
}

.pricing-teaser .btn-outline {
  font-size: 0.95rem;
}

.pricing-teaser-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 40px 0 32px;
}

.pricing-teaser-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

/* Pricing Page Hero */
.pricing-hero {
  text-align: center;
  padding: 120px 0 60px;
}

.pricing-hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.pricing-hero p {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 520px;
  margin: 0 auto;
}

/* Pricing Page Tiers */
.pricing-page-tiers {
  padding: 0 0 80px;
}

.pricing-page-tiers .pricing-tiers {
  max-width: 960px;
}

.pricing-page-tiers .pricing-card {
  text-align: left;
}

.pricing-page-tiers .pricing-card h3 {
  text-align: center;
}

.pricing-page-tiers .pricing-card .price {
  text-align: center;
}

.pricing-page-tiers .pricing-card > p {
  text-align: center;
  margin-bottom: 20px;
}

.pricing-card-highlight {
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(245, 158, 11, 0.08);
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.pricing-features li {
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.pricing-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 600;
}

/* FAQ */
.faq {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.faq h2 {
  text-align: center;
  font-size: 1.75rem;
  margin-bottom: 32px;
}

.faq-list {
  max-width: 680px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item summary {
  padding: 16px 0;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  color: var(--text-muted);
  font-size: 0.95rem;
  padding-bottom: 16px;
  line-height: 1.7;
}

/* Pricing Page CTA */
.pricing-cta {
  text-align: center;
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.pricing-cta h2 {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.pricing-cta p {
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 1rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-nav a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--accent);
}

.footer-nav .sep {
  color: var(--border);
}

/* Responsive */
@media (max-width: 900px) {
  .policy-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-teaser-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .mobile-menu-btn {
    display: block;
  }

  .header-nav,
  .site-header .btn-sm {
    display: none;
  }

  .site-header.menu-open .header-nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: rgba(15, 17, 23, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    gap: 16px;
  }

  .site-header.menu-open .btn-sm {
    display: inline-block;
    position: absolute;
    top: calc(56px + 16px);
    right: 24px;
    display: none;
  }

  .header-nav a {
    font-size: 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .pricing-hero h1 {
    font-size: 1.75rem;
  }

  .pipeline {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .pipeline-step {
    width: 100%;
    max-width: 300px;
  }

  .pipeline-arrow {
    transform: rotate(90deg);
    padding: 8px 0;
  }

  .policy-grid {
    grid-template-columns: 1fr;
  }

  .tabs {
    flex-wrap: wrap;
  }

  .tab {
    padding: 8px 14px;
    font-size: 0.8rem;
  }

  .signup-form,
  .hero-signup-form {
    flex-direction: column;
  }

  .pricing-teaser-grid {
    grid-template-columns: 1fr;
  }

  .pricing-teaser-stats {
    grid-template-columns: 1fr;
  }

  pre {
    font-size: 0.75rem;
  }
}