/* =============================================
   Dev Expert — Main Stylesheet
   ============================================= */

/* ---------- CSS Variables ---------- */
:root {
  --color-bg: #0a0e17;
  --color-bg-alt: #111827;
  --color-bg-card: #1a2233;
  --color-bg-card-hover: #1f2a3e;
  --color-surface: #243049;
  --color-border: #2d3a52;
  --color-border-light: #374357;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-primary-light: rgba(59, 130, 246, 0.12);
  --color-accent: #10b981;
  --color-accent-light: rgba(16, 185, 129, 0.12);
  --color-warning: #f59e0b;
  --color-warning-light: rgba(245, 158, 11, 0.12);
  --color-danger: #ef4444;
  --color-danger-light: rgba(239, 68, 68, 0.12);
  --color-purple: #8b5cf6;
  --color-purple-light: rgba(139, 92, 246, 0.12);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
  --container-max: 1200px;
  --header-height: 64px;
  --transition: 0.2s ease;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--color-primary-hover);
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-surface);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--color-accent);
}

img {
  max-width: 100%;
  height: auto;
}

ul {
  list-style: none;
}

/* ---------- Container ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
  padding: 12px 24px;
  line-height: 1.3;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-bg-card);
  color: var(--color-text);
  border-color: var(--color-border-light);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.logo:hover {
  color: var(--color-text);
}
.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.logo-icon img {
  width: 100%;
  height: 100%;
  display: block;
}

.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover {
  color: var(--color-text);
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  position: relative;
  transition: background 0.3s;
}
.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.3s;
}
.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.mobile-menu-toggle.active .hamburger {
  background: transparent;
}
.mobile-menu-toggle.active .hamburger::before {
  transform: translateY(7px) rotate(45deg);
}
.mobile-menu-toggle.active .hamburger::after {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Section Base ---------- */
.section {
  padding: 96px 0;
}
.section:nth-child(even) {
  background: var(--color-bg-alt);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-align: center;
  margin-bottom: 16px;
}

.section-desc {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
}

/* ---------- Hero ---------- */
.hero {
  padding-top: calc(var(--header-height) + 80px);
  padding-bottom: 96px;
  background: radial-gradient(ellipse at 50% 0%, rgba(59,130,246,0.08) 0%, transparent 60%),
              var(--color-bg);
}

.hero-content {
  max-width: 740px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 40px;
}

.repo-input-wrapper {
  max-width: 660px;
  margin: 0 auto;
}

.repo-input-box {
  display: flex;
  align-items: center;
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 6px 6px 6px 18px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.repo-input-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.repo-input-icon {
  color: var(--color-text-dim);
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-right: 12px;
}

.repo-input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 12px 8px;
  outline: none;
  min-width: 0;
}
.repo-input::placeholder {
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.btn-analyze {
  flex-shrink: 0;
  padding: 14px 24px;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
}

.repo-input-note {
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--color-text-dim);
  display: flex;
  align-items: flex-start;
  gap: 6px;
  justify-content: center;
}
.repo-input-note i {
  margin-top: 2px;
  flex-shrink: 0;
}

/* ---------- How It Works ---------- */
.steps-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
}

.step-card {
  flex: 1;
  max-width: 320px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  position: relative;
}

.step-number {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.8rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-icon {
  font-size: 1.8rem;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.step-connector {
  display: flex;
  align-items: center;
  color: var(--color-text-dim);
  font-size: 1.2rem;
  margin-top: 60px;
}

.steps-footnote {
  background: var(--color-primary-light);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  max-width: 800px;
  margin: 0 auto;
}
.steps-footnote strong {
  color: var(--color-text);
}

/* ---------- Dashboard Features ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
}

.feature-header {
  margin-bottom: 16px;
}

.feature-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 12px;
  border-radius: 20px;
}
.badge-stats {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.badge-actions {
  background: var(--color-accent-light);
  color: var(--color-accent);
}
.badge-ideas {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card > p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.feature-list {
  margin-bottom: 16px;
}
.feature-list li {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: 4px 0 4px 18px;
  position: relative;
}
.feature-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-text-dim);
}

.feature-detail {
  font-size: 0.82rem;
  background: var(--color-surface);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}
.feature-detail strong {
  color: var(--color-text);
}

/* Discovery section */
.discovery-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
}

.discovery-section h3 {
  text-align: center;
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 32px;
}

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

.discovery-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.discovery-item i {
  color: var(--color-primary);
  font-size: 0.85rem;
  margin-top: 4px;
  flex-shrink: 0;
}

/* ---------- Who It's For ---------- */
.personas-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.persona-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: border-color var(--transition), transform var(--transition);
}
.persona-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-2px);
}

.persona-card i {
  font-size: 1.6rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  display: block;
}

.persona-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.persona-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---------- Dashboard Preview / Mockup ---------- */
.mock-dashboard {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.mock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: 12px;
}

.mock-repo-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
}
.mock-repo-info i {
  font-size: 1.2rem;
  color: var(--color-text-muted);
}
.mock-repo-name {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-text);
}

.mock-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.mock-badge-public {
  background: var(--color-accent-light);
  color: var(--color-accent);
}
.mock-badge-analyzed {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.mock-tabs {
  display: flex;
  gap: 4px;
}
.mock-tab {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: default;
  transition: all var(--transition);
}
.mock-tab.active {
  background: var(--color-primary);
  color: #fff;
}

.mock-metrics-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.mock-metric {
  background: var(--color-bg-card);
  padding: 24px 20px;
  text-align: center;
}

.mock-metric-value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
  line-height: 1.1;
}

.mock-metric-label {
  display: block;
  font-size: 0.78rem;
  color: var(--color-text-dim);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.mock-metric-trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  margin-top: 8px;
  font-weight: 500;
}
.trend-up { color: var(--color-warning); }
.trend-down { color: var(--color-accent); }
.trend-same { color: var(--color-text-dim); }

/* Charts */
.mock-charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.mock-charts-row:has(.wide) {
  grid-template-columns: 1fr;
}

.mock-chart-card {
  background: var(--color-bg-card);
  padding: 24px;
}
.mock-chart-card.wide {
  width: 100%;
}
.mock-chart-card h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.mock-chart {
  position: relative;
  height: 220px;
}
.mock-chart canvas {
  max-height: 100%;
}

/* Mock table */
.mock-section {
  padding: 24px;
  border-bottom: 1px solid var(--color-border);
}
.mock-section h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.mock-section h4 i {
  color: var(--color-primary);
}
.mock-count {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--color-text-dim);
  background: var(--color-surface);
  padding: 2px 10px;
  border-radius: 12px;
}

.mock-table {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.mock-table-header {
  display: grid;
  grid-template-columns: 80px 1fr 160px 100px;
  gap: 12px;
  padding: 10px 16px;
  background: var(--color-surface);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-dim);
}

.mock-table-row {
  display: grid;
  grid-template-columns: 80px 1fr 160px 100px;
  gap: 12px;
  padding: 12px 16px;
  font-size: 0.85rem;
  border-top: 1px solid var(--color-border);
  align-items: center;
  transition: background var(--transition);
}
.mock-table-row:hover {
  background: var(--color-bg-card-hover);
}

.priority-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.priority-high { background: var(--color-danger-light); color: var(--color-danger); }
.priority-medium { background: var(--color-warning-light); color: var(--color-warning); }
.priority-low { background: var(--color-primary-light); color: var(--color-primary); }

.col-action { color: var(--color-text); }
.col-assignee {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.mock-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  flex-shrink: 0;
}

.source-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-primary);
}

/* Ideas */
.mock-ideas-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mock-idea {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 20px;
}

.idea-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}
.cat-security { background: var(--color-danger-light); color: var(--color-danger); }
.cat-speed { background: var(--color-accent-light); color: var(--color-accent); }
.cat-quality { background: var(--color-purple-light); color: var(--color-purple); }
.cat-workflow { background: var(--color-warning-light); color: var(--color-warning); }

.mock-idea p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 10px;
}
.mock-idea p strong {
  color: var(--color-text);
}

.idea-evidence {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  font-style: italic;
}

/* ---------- Examples ---------- */
.examples-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  max-width: 700px;
  margin: 0 auto 24px;
}

.example-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: all var(--transition);
  color: var(--color-text);
}
.example-card:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-card-hover);
  color: var(--color-text);
  transform: translateX(4px);
}

.example-icon {
  width: 44px;
  height: 44px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.example-info {
  flex: 1;
}
.example-info h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.example-info p {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.example-arrow {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.example-card:hover .example-arrow {
  color: var(--color-primary);
}

.examples-note {
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* ---------- Pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* Equal-height cards: pin the CTA to the bottom of every card. */
.pricing-card .btn-block {
  margin-top: auto;
}

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

.pricing-featured-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-header {
  text-align: center;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.pricing-header h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.pricing-price {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}

.pricing-period {
  font-size: 0.82rem;
  color: var(--color-text-dim);
  margin-top: 8px;
}

/* Annual/monthly billing switch on the Pro card. Default state lives in the
   markup (checked = annual = $20); nothing is persisted, so a reload resets
   to annual. */
.billing-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  cursor: pointer;
  user-select: none;
}
.billing-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.billing-switch-track {
  position: relative;
  width: 34px;
  height: 19px;
  border-radius: 12px;
  background: var(--color-border);
  transition: background 0.2s ease;
  flex-shrink: 0;
}
.billing-switch-thumb {
  position: absolute;
  top: 2.5px;
  left: 2.5px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s ease;
}
.billing-switch input:checked + .billing-switch-track {
  background: var(--color-accent);
}
.billing-switch input:checked + .billing-switch-track .billing-switch-thumb {
  transform: translateX(15px);
}
.billing-switch input:focus-visible + .billing-switch-track {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.billing-switch-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-accent);
}

/* Align the divider/feature lists across the three cards: Pro's second billing
   line and the billing switch make its header the tallest, so reserve that
   height on desktop, where the cards sit in a row. Stacked mobile cards skip
   this. */
@media (min-width: 1025px) {
  .pricing-header {
    min-height: 216px;
  }
}

.pricing-features {
  margin-bottom: 28px;
}
.pricing-features li {
  font-size: 0.875rem;
  padding: 8px 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--color-text-muted);
}
.pricing-features li i {
  margin-top: 3px;
  flex-shrink: 0;
  font-size: 0.75rem;
}
.pricing-features li .fa-check {
  color: var(--color-accent);
}
.pricing-excluded {
  opacity: 0.45;
}
.pricing-excluded .fa-times {
  color: var(--color-text-dim);
}

/* ---------- Billing Details ---------- */
.billing-content {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
}

.billing-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}

.billing-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.billing-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 20px 0 12px;
}

.billing-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
  line-height: 1.6;
}

.billing-card ul {
  margin-bottom: 16px;
}
.billing-card ul li {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding: 6px 0 6px 20px;
  position: relative;
}
.billing-card ul li::before {
  content: '•';
  position: absolute;
  left: 4px;
  color: var(--color-primary);
  font-weight: 700;
}

.billing-example {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 16px 0;
}
.billing-example p {
  margin-bottom: 8px;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  background: var(--color-bg-card);
  overflow: hidden;
}

.faq-question {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  transition: background var(--transition);
}
.faq-question::-webkit-details-marker {
  display: none;
}
.faq-question::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.75rem;
  color: var(--color-text-dim);
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item[open] .faq-question::after {
  transform: rotate(180deg);
}
.faq-question:hover {
  background: var(--color-bg-card-hover);
}

.faq-answer {
  padding: 0 24px 20px;
}
.faq-answer p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 16px;
  line-height: 1.6;
}

.footer-built {
  margin-top: 12px !important;
  font-size: 0.8rem !important;
  color: var(--color-text-dim) !important;
  font-style: italic;
}

.footer-links-group h4 {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-dim);
  margin-bottom: 16px;
}

.footer-links-group li {
  margin-bottom: 10px;
}
.footer-links-group a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.footer-links-group a:hover {
  color: var(--color-text);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-text-dim);
}

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  .discovery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }
  .billing-content {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .mock-metrics-row {
    grid-template-columns: repeat(3, 1fr);
  }
  .mock-charts-row {
    grid-template-columns: 1fr;
  }
  .mock-table-header,
  .mock-table-row {
    grid-template-columns: 70px 1fr 130px 90px;
  }
  .mock-ideas-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }

  .main-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
    z-index: 999;
  }
  .main-nav.open {
    display: block;
  }
  .nav-links {
    flex-direction: column;
    gap: 0;
  }
  .nav-links a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 1rem;
  }

  .header-cta {
    display: none;
  }

  .header-actions .btn-ghost {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero {
    padding-top: calc(var(--header-height) + 48px);
    padding-bottom: 64px;
  }
  .hero h1 {
    font-size: 1.85rem;
  }
  .hero-subtitle {
    font-size: 0.95rem;
  }
  .repo-input-box {
    flex-direction: column;
    padding: 12px;
    gap: 10px;
  }
  .repo-input-icon {
    display: none;
  }
  .repo-input {
    width: 100%;
    font-size: 0.85rem;
    padding: 10px 8px;
  }
  .btn-analyze {
    width: 100%;
  }

  .section {
    padding: 64px 0;
  }
  .section-title {
    font-size: 1.6rem;
  }

  .steps-grid {
    flex-direction: column;
    align-items: center;
  }
  .step-connector {
    transform: rotate(90deg);
    margin: 8px 0;
  }
  .step-card {
    max-width: 100%;
  }

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

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

  .mock-metrics-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .mock-header {
    padding: 12px 16px;
  }

  .mock-table-header,
  .mock-table-row {
    grid-template-columns: 60px 1fr;
  }
  .col-assignee,
  .col-source {
    display: none;
  }

  .mock-section {
    padding: 16px;
  }
  .mock-chart-card {
    padding: 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .examples-grid {
    gap: 10px;
  }
  .example-info p {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.55rem;
  }
  .mock-metrics-row {
    grid-template-columns: 1fr;
  }
  .mock-tabs {
    display: none;
  }
  .mock-ideas-grid {
    grid-template-columns: 1fr;
  }
}