/* LumiRoute Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #030712;
  --bg-elevated: #0a0f1e;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #22d3ee;
  --accent-bright: #67e8f9;
  --accent-glow: rgba(34, 211, 238, 0.35);
  --accent-dim: rgba(34, 211, 238, 0.12);
  --success: #34d399;
  --danger: #f87171;
  --warning: #fbbf24;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px var(--accent-glow);
  --nav-h: 64px;
  --sidebar-w: 260px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

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

/* Background mesh */
.mesh-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(34, 211, 238, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(99, 102, 241, 0.08), transparent),
    radial-gradient(ellipse 50% 30% at 0% 80%, rgba(34, 211, 238, 0.06), transparent);
}

.grid-pattern {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent);
}

/* Layout */
.page { position: relative; z-index: 1; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: 480px; }

/* Nav */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav-logo { display: flex; align-items: center; gap: 0.6rem; }
.nav-logo img { height: 32px; width: auto; }
.nav-logo span {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-links a:hover { color: var(--text); background: var(--surface); }

.nav-actions { display: flex; align-items: center; gap: 0.5rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #06b6d4);
  color: #030712;
  box-shadow: 0 2px 12px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
  color: #030712;
}

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

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border-strong);
}
.btn-outline:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent-bright);
}

.btn-lg { padding: 0.85rem 1.75rem; font-size: 1rem; }
.btn-block { width: 100%; }
.btn-sm { padding: 0.4rem 0.85rem; font-size: 0.8rem; }

/* Cards */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color var(--transition);
}
.card:hover { border-color: var(--border-strong); }
.card-glass {
  background: rgba(10, 15, 30, 0.6);
  backdrop-filter: blur(8px);
}

/* Forms */
.form-group { margin-bottom: 1.25rem; }
.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-input::placeholder { color: var(--text-dim); }
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}
.form-check input[type="checkbox"] {
  margin-top: 0.2rem;
  width: 1rem;
  height: 1rem;
  accent-color: var(--accent);
  flex-shrink: 0;
}
.form-check label {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.45;
}
.form-check a { color: var(--accent); }
.form-hint { font-size: 0.8rem; color: var(--text-dim); margin-top: 0.35rem; }
.form-error { font-size: 0.85rem; color: var(--danger); margin-top: 0.5rem; }
.form-success { font-size: 0.85rem; color: var(--success); margin-top: 0.5rem; }

/* Hero */
.hero {
  padding: calc(var(--nav-h) + 4rem) 0 5rem;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: var(--accent-dim);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}
.hero h1 .gradient {
  background: linear-gradient(135deg, var(--accent-bright), var(--accent), #818cf8);
  -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 2rem;
}
.hero-cta { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

/* Feature grid */
.section { padding: 5rem 0; }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.section-header p { color: var(--text-muted); max-width: 520px; margin: 0 auto; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}
.feature-card {
  padding: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}
.feature-card:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.feature-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}
.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.feature-card p { font-size: 0.9rem; color: var(--text-muted); }

/* Code block */
.code-section { padding: 4rem 0; }
.code-window {
  background: #060a14;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 720px;
  margin: 0 auto;
  box-shadow: var(--shadow);
}
.code-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}
.code-dot { width: 10px; height: 10px; border-radius: 50%; }
.code-dot.red { background: #f87171; }
.code-dot.yellow { background: #fbbf24; }
.code-dot.green { background: #34d399; }
.code-body {
  padding: 1.25rem;
  overflow-x: auto;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  color: #c9d1d9;
}
.code-body .cmt { color: #6b7280; }
.code-body .str { color: #7ec8a0; }
.code-body .kw { color: var(--accent); }

/* Providers strip */
.providers-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 2rem 0;
  opacity: 0.7;
}
.provider-pill {
  padding: 0.5rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; margin-top: 0.75rem; max-width: 280px; }
.footer-col h4 { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); margin-bottom: 0.75rem; }
.footer-col a { display: block; color: var(--text-muted); font-size: 0.9rem; padding: 0.25rem 0; }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-dim);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--text); }

/* Legal pages (Terms / Privacy) */
.legal-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}
.legal-wrap h1 { font-size: 2rem; margin-bottom: 0.5rem; }
.legal-wrap .subtitle { color: var(--text-muted); margin-bottom: 2rem; }
.legal-wrap h2 {
  color: var(--accent);
  font-size: 1.15rem;
  margin: 2rem 0 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.legal-wrap h2:first-of-type { border-top: none; padding-top: 0; }
.legal-wrap p,
.legal-wrap li { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }
.legal-wrap ul { padding-left: 1.25rem; margin: 0.5rem 0 1rem; }

/* Auth pages */
.auth-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.auth-brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem;
  background: linear-gradient(135deg, rgba(34,211,238,0.08), rgba(99,102,241,0.05));
  border-right: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.auth-brand::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, var(--accent-glow), transparent 60%);
  opacity: 0.3;
}
.auth-brand-inner { position: relative; z-index: 1; max-width: 400px; }
.auth-brand h1 { font-size: 2rem; font-weight: 800; letter-spacing: -0.02em; margin: 1.5rem 0 1rem; }
.auth-brand p { color: var(--text-muted); font-size: 1rem; line-height: 1.7; }
.auth-brand ul { list-style: none; margin-top: 2rem; }
.auth-brand li {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.5rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.auth-brand li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
}

.auth-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.auth-form-box { width: 100%; max-width: 400px; }
.auth-form-box h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.35rem; }
.auth-form-box .subtitle { color: var(--text-muted); margin-bottom: 2rem; font-size: 0.95rem; }
.auth-divider {
  display: flex; align-items: center; gap: 1rem;
  margin: 1.5rem 0;
  color: var(--text-dim);
  font-size: 0.85rem;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Dashboard layout */
.app-layout {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 50;
}
.sidebar-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--border);
}
.sidebar-header a { display: flex; align-items: center; gap: 0.6rem; }
.sidebar-header img { height: 28px; }
.sidebar-header span { font-weight: 700; font-size: 1rem; color: var(--text); }

.sidebar-nav { flex: 1; padding: 1rem 0.75rem; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: var(--font);
}
.nav-item:hover { color: var(--text); background: var(--surface); }
.nav-item.active { color: var(--accent); background: var(--accent-dim); }
.nav-item svg { width: 18px; height: 18px; opacity: 0.7; }

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--border);
}
.user-chip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700; color: #030712;
}
.user-info { flex: 1; min-width: 0; }
.user-info .email { font-size: 0.8rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-info .plan { font-size: 0.7rem; color: var(--text-dim); }

.app-main {
  flex: 1;
  margin-left: var(--sidebar-w);
  min-height: 100vh;
}
.app-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: rgba(3, 7, 18, 0.6);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 40;
}
.app-topbar h1 { font-size: 1.25rem; font-weight: 600; }
.app-content { padding: 2rem; max-width: 1100px; }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.stat-card .label { font-size: 0.8rem; color: var(--text-dim); font-weight: 500; margin-bottom: 0.35rem; }
.stat-card .value { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.02em; }
.stat-card .value.accent { color: var(--accent); }

/* Tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}
td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
tr:hover td { background: var(--surface); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
}
.badge-success { background: rgba(52, 211, 153, 0.15); color: var(--success); }
.badge-muted { background: var(--surface); color: var(--text-dim); }

/* API key display */
.key-display {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'SF Mono', monospace;
  font-size: 0.85rem;
}
.key-display code { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Tabs (dashboard) */
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Alert */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.alert-info { background: var(--accent-dim); border: 1px solid rgba(34,211,238,0.2); color: var(--accent); }
.alert-warn { background: rgba(251,191,36,0.1); border: 1px solid rgba(251,191,36,0.2); color: var(--warning); }

/* Responsive */
@media (max-width: 900px) {
  .auth-page { grid-template-columns: 1fr; }
  .auth-brand { display: none; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .app-main { margin-left: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding-top: calc(var(--nav-h) + 2rem); }
  .footer-grid { grid-template-columns: 1fr; }
  .app-content { padding: 1rem; }
}

.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}

/* Utilities */
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-2 { margin-bottom: 1rem; }
.hidden { display: none !important; }