/* Timeline Peace - Landing Page Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #15202b;
  --bg-secondary: #192734;
  --bg-card: #1e2d3d;
  --accent: #1d9bf0;
  --accent-hover: #1a8cd8;
  --text-primary: #e7e9ea;
  --text-secondary: #8899a6;
  --border: #38444d;
  --success: #00ba7c;
  --danger: #f4212e;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

a:hover {
  text-decoration: underline;
}

/* ===== NAV ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(21, 32, 43, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

/* ===== HERO ===== */
.hero {
  padding: 140px 24px 80px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(29, 155, 240, 0.12);
  border: 1px solid rgba(29, 155, 240, 0.3);
  border-radius: 20px;
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero p {
  font-size: 20px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 30px;
  font-size: 16px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  text-decoration: none;
}

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

.btn-secondary:hover {
  background: rgba(29, 155, 240, 0.1);
  text-decoration: none;
}

.hero-meta {
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ===== FEATURES ===== */
.features {
  padding: 80px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 48px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

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

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 24px;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 36px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
  padding: 80px 24px;
  background: var(--bg-secondary);
}

.how-inner {
  max-width: 700px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 20px;
  margin-bottom: 32px;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
}

.step-content h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.step-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===== INSTALL ===== */
.install {
  padding: 80px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.browser-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 32px;
}

.browser-tab {
  padding: 10px 20px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.browser-tab:hover,
.browser-tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.browser-instructions {
  display: none;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  max-width: 700px;
  margin: 0 auto;
}

.browser-instructions.active {
  display: block;
}

.browser-instructions h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.browser-instructions ol {
  padding-left: 0;
  counter-reset: step;
  list-style: none;
}

.browser-instructions ol li {
  counter-increment: step;
  margin-bottom: 16px;
  padding-left: 36px;
  position: relative;
  font-size: 15px;
  line-height: 1.6;
}

.browser-instructions ol li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 1px;
  width: 24px;
  height: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
}

.browser-instructions code {
  background: var(--bg-card);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--accent);
  border: 1px solid var(--border);
}

.browser-instructions .note {
  margin-top: 16px;
  padding: 12px 16px;
  background: rgba(29, 155, 240, 0.08);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ===== FAQ ===== */
.faq {
  padding: 80px 24px;
  background: var(--bg-secondary);
}

.faq-inner {
  max-width: 700px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.faq-question::after {
  content: "+";
  font-size: 22px;
  color: var(--accent);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  content: "-";
}

.faq-answer {
  display: none;
  padding-top: 12px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ===== CTA ===== */
.cta {
  padding: 80px 24px;
  text-align: center;
}

.cta h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* ===== FOOTER ===== */
.footer {
  padding: 32px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 34px;
  }

  .hero p {
    font-size: 16px;
  }

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

  .nav-links {
    display: none;
  }

  .browser-instructions {
    padding: 24px 20px;
  }

  .section-title {
    font-size: 28px;
  }

  .cta h2 {
    font-size: 28px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 120px 16px 60px;
  }

  .hero h1 {
    font-size: 28px;
  }

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

  .btn {
    width: 100%;
    justify-content: center;
  }

  .browser-tabs {
    gap: 6px;
  }

  .browser-tab {
    padding: 8px 14px;
    font-size: 12px;
  }
}