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

:root {
  --bg: #0a0a0a;
  --bg-elevated: #111;
  --bg-card: #1a1a1a;
  --border: #222;
  --text: #e0e0e0;
  --text-dim: #999;
  --text-dimmer: #666;
  --primary: #667eea;
  --primary-hover: #5568d3;
  --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --success: #4ade80;
  --warning: #fbbf24;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
nav {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(10, 10, 10, 0.8);
}

.nav-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

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

.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.cta-nav {
  background: var(--primary);
  color: white !important;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 600;
}

.cta-nav:hover {
  background: var(--primary-hover);
}

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

.hero h1 {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-size: 1.5rem;
  color: var(--text-dim);
  margin-bottom: 4rem;
  font-weight: 300;
}

.trust-selector {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.trust-option {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 24px 32px;
  cursor: pointer;
  transition: all 0.3s;
  min-width: 180px;
}

.trust-option:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
}

.trust-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.trust-option h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.trust-option p {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.cta-primary {
  display: inline-block;
  background: var(--gradient);
  color: white;
  padding: 16px 48px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(102, 126, 234, 0.3);
}

.sub-cta {
  margin-top: 16px;
  color: var(--text-dimmer);
  font-size: 0.9rem;
}

/* Demo */
.demo {
  padding: 80px 0;
  background: var(--bg-elevated);
}

.demo-window {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto;
}

.demo-header {
  background: #1a1a1a;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.demo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #444;
}

.demo-title {
  margin-left: auto;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.demo-content {
  padding: 0;
  display: flex;
}

.demo-sidebar {
  width: 100%;
  padding: 24px;
  background: #0d0d0d;
}

.demo-sidebar-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  font-weight: 600;
}

.demo-logo {
  font-size: 1.5rem;
}

.demo-message {
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  line-height: 1.6;
}

.demo-message.user {
  background: #2a4a6a;
  margin-left: auto;
  max-width: 80%;
}

.demo-message.assistant {
  background: #1a1a1a;
  max-width: 90%;
}

.thinking {
  color: var(--text-dim);
  font-style: italic;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.demo-input {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.demo-vision-btn, .demo-photo-btn {
  flex: 1;
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  font-size: 0.9rem;
  cursor: default;
}

.demo-caption {
  text-align: center;
  margin-top: 24px;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.demo-caption kbd {
  background: var(--bg-card);
  padding: 4px 8px;
  border-radius: 4px;
  font-family: monospace;
  border: 1px solid var(--border);
}

/* Trust Levels */
.trust-levels {
  padding: 80px 0;
}

.trust-levels h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-intro {
  text-align: center;
  color: var(--text-dim);
  font-size: 1.1rem;
  margin-bottom: 4rem;
}

.levels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.level {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  position: relative;
}

.level.featured {
  border-color: var(--primary);
  box-shadow: 0 0 32px rgba(102, 126, 234, 0.15);
}

.level-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  padding: 6px 16px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.85rem;
}

.level-badge.free {
  background: var(--success);
  color: #000;
}

.level-badge.pro {
  background: var(--gradient);
  color: white;
}

.level-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.level h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.level-desc {
  color: var(--text-dim);
  margin-bottom: 24px;
}

.level-features {
  list-style: none;
  margin-bottom: 24px;
}

.level-features li {
  padding: 8px 0;
  color: var(--text-dim);
}

.level-data {
  background: var(--bg-elevated);
  padding: 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  border-left: 3px solid var(--primary);
}

.link-security {
  display: block;
  text-align: center;
  margin-top: 48px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.link-security:hover {
  text-decoration: underline;
}

/* Features */
.features {
  padding: 80px 0;
  background: var(--bg-elevated);
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 4rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.feature {
  background: var(--bg-card);
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.feature h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.feature p {
  color: var(--text-dim);
  line-height: 1.7;
}

.feature code {
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--primary);
}

/* Comparison */
.comparison {
  padding: 80px 0;
}

.comparison h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 4rem;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
}

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

.compare-table th {
  background: var(--bg-elevated);
  font-weight: 600;
  color: var(--text);
}

.compare-table th.ours,
.compare-table td.ours {
  background: rgba(102, 126, 234, 0.1);
  font-weight: 600;
}

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

/* Install */
.install {
  padding: 80px 0;
  background: var(--bg-elevated);
}

.install h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 4rem;
}

.install-steps {
  max-width: 800px;
  margin: 0 auto 48px;
}

.step {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
}

.step-content h3 {
  margin-bottom: 8px;
}

.step-content code {
  display: block;
  background: var(--bg-card);
  padding: 12px 16px;
  border-radius: 6px;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  margin-top: 12px;
  border: 1px solid var(--border);
  overflow-x: auto;
}

.step-content p {
  color: var(--text-dim);
  line-height: 1.7;
}

.cta-secondary {
  display: inline-block;
  background: transparent;
  color: var(--primary);
  padding: 16px 48px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  border: 2px solid var(--primary);
  transition: all 0.2s;
}

.cta-secondary:hover {
  background: var(--primary);
  color: white;
}

/* Waitlist */
.waitlist {
  padding: 80px 0;
  text-align: center;
}

.waitlist h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.waitlist > p {
  color: var(--text-dim);
  margin-bottom: 2rem;
}

.waitlist-form {
  display: flex;
  gap: 16px;
  max-width: 500px;
  margin: 0 auto 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.waitlist-form input {
  flex: 1;
  min-width: 250px;
  padding: 14px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 1rem;
}

.waitlist-form input::placeholder {
  color: var(--text-dimmer);
}

.waitlist-form button {
  padding: 14px 32px;
  background: var(--gradient);
  border: none;
  border-radius: 6px;
  color: white;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.2s;
}

.waitlist-form button:hover {
  transform: translateY(-2px);
}

.waitlist-note {
  color: var(--text-dimmer);
  font-size: 0.9rem;
}

/* Footer */
footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: 60px 0 24px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 48px;
  margin-bottom: 48px;
}

.footer-col h4 {
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.footer-col a {
  display: block;
  color: var(--text-dim);
  text-decoration: none;
  margin-bottom: 12px;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-dimmer);
  font-size: 0.9rem;
}

/* Security Page */
.security-page {
  padding: 80px 0;
}

.security-page h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.intro {
  font-size: 1.2rem;
  color: var(--text-dim);
  margin-bottom: 4rem;
}

.security-section {
  margin-bottom: 80px;
}

.security-section h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--border);
  padding-bottom: 16px;
}

.level-security {
  background: var(--bg-card);
  padding: 32px;
  border-radius: 12px;
  border-left: 4px solid var(--primary);
  margin-bottom: 32px;
}

.level-security h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.level-security pre {
  background: var(--bg-elevated);
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 16px 0;
  font-size: 0.9rem;
  line-height: 1.8;
  border: 1px solid var(--border);
}

.level-security ul {
  list-style: none;
  margin: 16px 0;
}

.level-security li {
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
}

.level-security li:before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary);
}

.proof {
  background: rgba(102, 126, 234, 0.1);
  padding: 16px;
  border-radius: 8px;
  margin-top: 16px;
  border-left: 3px solid var(--primary);
}

.proof a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.proof a:hover {
  text-decoration: underline;
}

.infra-table, .tracking-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
  margin: 24px 0;
}

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

.infra-table th,
.tracking-table th {
  background: var(--bg-elevated);
  font-weight: 600;
}

.infra-table tr:last-child td,
.tracking-table tr:last-child td {
  border-bottom: none;
}

.open-source {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 24px 0;
}

.repo {
  background: var(--bg-card);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.repo h4 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.repo a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.repo a:hover {
  text-decoration: underline;
}

.threats {
  display: grid;
  gap: 24px;
}

.threat {
  background: var(--bg-card);
  padding: 24px;
  border-radius: 12px;
  border-left: 4px solid var(--warning);
}

.threat h4 {
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.back-cta {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-top: 48px;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .tagline {
    font-size: 1.2rem;
  }

  .trust-selector {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links {
    gap: 16px;
  }

  .security-page h1 {
    font-size: 2rem;
  }

  .compare-table {
    font-size: 0.9rem;
  }

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