/* ============================================
   FaultRay Landing Page Styles
   ============================================ */

/* --- Custom Properties --- */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1424;
  --bg-tertiary: #141a2e;
  --bg-card: #111827;
  --bg-card-hover: #1a2035;
  --border-color: #1e293b;
  --border-subtle: #1a2035;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --gold: #FFD700;
  --gold-dim: #b8960a;
  --green: #10B981;
  --green-dim: #059669;
  --red: #ef4444;
  --yellow: #eab308;
  --blue: #3b82f6;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Fira Code", Consolas, "Liberation Mono", Menlo, monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow-gold: 0 0 40px rgba(255, 215, 0, 0.1);
  --shadow-glow-green: 0 0 40px rgba(16, 185, 129, 0.1);
  --transition: 0.2s ease;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}

/* --- Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.nav.scrolled {
  border-bottom-color: var(--border-color);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-logo-icon {
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
  font-weight: 500;
}

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

.nav-link-github {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), color var(--transition);
}

.nav-link-github:hover {
  border-color: var(--text-muted);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  padding: 140px 0 80px;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 215, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 215, 0, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--gold);
  border: 1px solid rgba(255, 215, 0, 0.25);
  border-radius: 100px;
  background: rgba(255, 215, 0, 0.05);
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}

.hero-title {
  font-size: clamp(3rem, 10vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 20px;
}

.hero-title-chaos {
  color: var(--text-primary);
}

.hero-title-proof {
  color: var(--gold);
}

.hero-tagline {
  font-size: clamp(1.125rem, 3vw, 1.5rem);
  color: var(--green);
  font-weight: 600;
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gold);
  color: #0a0e1a;
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
}

.btn-primary:hover {
  background: #ffe44d;
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  transform: translateY(-1px);
}

/* --- Terminal --- */
.hero-terminal {
  max-width: 620px;
  margin: 0 auto;
}

.terminal {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg), var(--shadow-glow-gold);
  background: #0d1117;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #161b22;
  border-bottom: 1px solid var(--border-color);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

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

.terminal-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: auto;
  font-family: var(--font-mono);
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.8;
  text-align: left;
}

.terminal-line {
  opacity: 0;
  animation: terminalFadeIn 0.3s ease forwards;
}

.terminal-line--1 { animation-delay: 0.5s; }
.terminal-line--2 { animation-delay: 1.5s; }
.terminal-line--3 { animation-delay: 2.5s; }
.terminal-line--4 { animation-delay: 3.5s; }
.terminal-line--5 { animation-delay: 4.2s; }
.terminal-line--6 { animation-delay: 4.6s; }
.terminal-line--7 { animation-delay: 5.0s; }

@keyframes terminalFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.terminal-prompt {
  color: var(--green);
  margin-right: 8px;
  user-select: none;
}

.terminal-cmd {
  color: var(--text-primary);
}

.terminal-output {
  color: var(--text-muted);
  padding-left: 20px;
  display: block;
}

.terminal-output--gold { color: var(--gold); }
.terminal-output--green { color: var(--green); }

.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 16px;
  background: var(--gold);
  margin-left: 4px;
  animation: cursorBlink 1s step-end infinite;
  opacity: 0;
  animation-delay: 5.5s;
  animation-fill-mode: forwards;
  vertical-align: text-bottom;
}

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

/* --- Problem / Solution --- */
.problem-solution {
  padding: 100px 0;
}

.ps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.ps-card {
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
}

.ps-card--problem {
  border-color: rgba(239, 68, 68, 0.2);
}

.ps-card--solution {
  border-color: rgba(16, 185, 129, 0.2);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(16, 185, 129, 0.03) 100%);
}

.ps-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.ps-icon--problem {
  background: rgba(239, 68, 68, 0.1);
}

.ps-icon--solution {
  background: rgba(16, 185, 129, 0.1);
}

.ps-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.ps-lead {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.ps-lead strong {
  color: var(--text-primary);
}

.ps-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ps-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.ps-list li svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Features Grid --- */
.features {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.feature-card:hover {
  border-color: rgba(255, 215, 0, 0.3);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-gold);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(255, 215, 0, 0.06);
  border: 1px solid rgba(255, 215, 0, 0.1);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Comparison Table --- */
.comparison {
  padding: 100px 0;
}

.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.comparison-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.comparison-table th,
.comparison-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  background: var(--bg-tertiary);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.comparison-table td {
  background: var(--bg-card);
  color: var(--text-secondary);
  vertical-align: middle;
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.comparison-highlight {
  background: rgba(255, 215, 0, 0.06) !important;
  color: var(--gold) !important;
  position: relative;
}

.comparison-highlight-cell {
  background: rgba(255, 215, 0, 0.03) !important;
  color: var(--text-primary) !important;
  font-weight: 500;
}

.comparison-highlight-cell svg {
  vertical-align: middle;
  margin-right: 4px;
}

.comparison-badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.6875rem;
  font-weight: 600;
  color: #0a0e1a;
  background: var(--gold);
  border-radius: 100px;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.comparison-label {
  font-weight: 600;
  color: var(--text-primary) !important;
  white-space: nowrap;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 100px;
}

.badge--green {
  color: var(--green);
  background: rgba(16, 185, 129, 0.1);
}

.badge--red {
  color: var(--red);
  background: rgba(239, 68, 68, 0.1);
}

.badge--yellow {
  color: var(--yellow);
  background: rgba(234, 179, 8, 0.1);
}

/* --- 3-Layer Model --- */
.model {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.model-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.model-layers {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.model-layer {
  padding: 28px 32px;
  border: 1px solid var(--border-color);
  position: relative;
}

.model-layer:first-child {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.model-layer:last-child {
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.model-layer + .model-layer {
  border-top: none;
}

.model-layer--theoretical {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08) 0%, var(--bg-card) 100%);
  border-color: rgba(59, 130, 246, 0.25);
}

.model-layer--hardware {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.06) 0%, var(--bg-card) 100%);
  border-color: rgba(255, 215, 0, 0.2);
  border-top: 1px solid rgba(255, 215, 0, 0.2) !important;
}

.model-layer--software {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, var(--bg-card) 100%);
  border-color: rgba(16, 185, 129, 0.25);
  border-top: 1px solid rgba(16, 185, 129, 0.25) !important;
}

.model-layer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
}

.model-layer-label {
  font-weight: 700;
  font-size: 1rem;
  flex-basis: 100%;
  margin-bottom: 4px;
}

.model-layer--theoretical .model-layer-label { color: var(--blue); }
.model-layer--hardware .model-layer-label { color: var(--gold); }
.model-layer--software .model-layer-label { color: var(--green); }

.model-layer-nines {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.model-layer--theoretical .model-layer-nines { color: var(--blue); }
.model-layer--hardware .model-layer-nines { color: var(--gold); }
.model-layer--software .model-layer-nines { color: var(--green); }

.model-layer-pct {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.model-layer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  flex-basis: 100%;
  margin-top: 4px;
}

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

.model-insight-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--gold);
}

.model-insight-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.model-insight-example code {
  display: block;
  padding: 14px 18px;
  background: #0d1117;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--green);
  border: 1px solid var(--border-color);
  overflow-x: auto;
}

/* --- Quick Start --- */
.quickstart {
  padding: 100px 0;
}

.quickstart-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 64px;
}

.quickstart-step {
  position: relative;
}

.quickstart-step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 215, 0, 0.1);
  border: 1px solid rgba(255, 215, 0, 0.25);
  color: var(--gold);
  font-weight: 700;
  font-size: 0.875rem;
  margin-bottom: 16px;
}

.quickstart-step h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 16px;
}

/* --- Code Blocks --- */
.code-block {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #0d1117;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: #161b22;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.code-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  cursor: pointer;
  background: transparent;
}

.code-copy:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.code-copy.copied {
  color: var(--green);
  border-color: var(--green);
}

.code-block pre {
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
}

.code-block code {
  font-family: var(--font-mono);
}

.code-prompt {
  color: var(--green);
  user-select: none;
}

.code-output {
  color: var(--text-muted);
  display: block;
}

.code-output--green { color: var(--green); }
.code-output--gold { color: var(--gold); }

.code-key { color: var(--blue); }
.code-str { color: var(--green); }
.code-num { color: var(--gold); }

/* --- Dashboard Mockup --- */
.quickstart-dashboard {
  max-width: 900px;
  margin: 0 auto;
}

.dashboard-mockup {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.dashboard-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #161b22;
  border-bottom: 1px solid var(--border-color);
}

.dashboard-dots {
  display: flex;
  gap: 8px;
}

.dashboard-url {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-left: 8px;
}

.dashboard-body {
  display: grid;
  grid-template-columns: 160px 1fr;
  min-height: 280px;
  background: #0d1117;
}

.dashboard-sidebar {
  border-right: 1px solid var(--border-color);
  padding: 16px 0;
}

.dashboard-nav-item {
  padding: 8px 20px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  cursor: default;
}

.dashboard-nav-item.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
  border-left: 2px solid var(--gold);
}

.dashboard-main {
  padding: 24px;
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.dashboard-stat {
  text-align: center;
  padding: 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
}

.dashboard-stat-value {
  font-size: 1.375rem;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-bottom: 4px;
}

.dashboard-stat--green { color: var(--green); }
.dashboard-stat--red { color: var(--red); }

.dashboard-stat-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.dashboard-chart {
  border-radius: var(--radius-sm);
  padding: 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
}

.dashboard-chart-title {
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.dashboard-bars {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dashboard-bar-row {
  display: grid;
  grid-template-columns: 80px 1fr 48px;
  align-items: center;
  gap: 12px;
}

.dashboard-bar-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.dashboard-bar-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  overflow: hidden;
}

.dashboard-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 1s ease;
}

.dashboard-bar--software { background: var(--green); }
.dashboard-bar--hardware { background: var(--gold); }
.dashboard-bar--theoretical { background: var(--blue); }

.dashboard-bar-value {
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: var(--font-mono);
  text-align: right;
  color: var(--text-secondary);
}

/* --- Pricing --- */
.pricing {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
  position: relative;
}

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

.pricing-card--popular {
  border-color: var(--gold);
  background: linear-gradient(180deg, rgba(255, 215, 0, 0.04) 0%, var(--bg-card) 40%);
  box-shadow: var(--shadow-glow-gold);
}

.pricing-card--popular:hover {
  box-shadow: var(--shadow-glow-gold), var(--shadow-lg);
}

.pricing-popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #0a0e1a;
  background: var(--gold);
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.pricing-tier {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 16px;
}

.pricing-currency {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.pricing-amount {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.pricing-period {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-left: 4px;
}

.pricing-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.pricing-features li svg {
  flex-shrink: 0;
}

.pricing-btn {
  width: 100%;
  justify-content: center;
  margin-top: auto;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  max-width: 300px;
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding: 4px 12px;
  border: 1px solid var(--border-color);
  border-radius: 100px;
}

.footer-links h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--text-primary);
}

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

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ============================================
   Responsive Breakpoints
   ============================================ */

@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .model-visual {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .quickstart-steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(16px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero {
    padding: 120px 0 60px;
    min-height: auto;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

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

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .dashboard-body {
    grid-template-columns: 1fr;
  }

  .dashboard-sidebar {
    display: none;
  }

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

  .comparison-table {
    font-size: 0.8125rem;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 12px 14px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .ps-card {
    padding: 28px 20px;
  }

  .feature-card {
    padding: 24px;
  }

  .pricing-card {
    padding: 28px 20px;
  }

  .dashboard-stats {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .dashboard-stat {
    padding: 12px;
  }

  .dashboard-stat-value {
    font-size: 1.125rem;
  }

  .dashboard-bar-row {
    grid-template-columns: 60px 1fr 40px;
    gap: 8px;
  }
}