/* WatchNexus Marketing Site - Global Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --bg-base: #07060b;
  --bg-surface: #0f0d17;
  --bg-card: #151320;
  --bg-elevated: #1c1a2b;
  --accent: #9333ea;
  --accent-light: #a855f7;
  --accent-glow: rgba(147, 51, 234, 0.25);
  --gradient-start: #a855f7;
  --gradient-mid: #ec4899;
  --gradient-end: #f97316;
  --text-primary: #f1f0f5;
  --text-secondary: #9590a8;
  --text-muted: #5e596f;
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  background: rgba(7, 6, 11, 0.75);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  text-decoration: none;
}
.nav-logo svg { width: 28px; height: 28px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-github {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-github:hover { color: var(--text-primary); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s ease;
  border: none;
  font-family: inherit;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  color: #fff;
  box-shadow: 0 0 24px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 36px var(--accent-glow), 0 4px 16px rgba(0,0,0,0.4);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.2);
}
.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 1rem;
}

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.4;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: 9999px;
  background: rgba(147, 51, 234, 0.1);
  border: 1px solid rgba(147, 51, 234, 0.2);
  color: var(--accent-light);
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 2rem;
  position: relative;
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  position: relative;
}
.gradient-text {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  max-width: 600px;
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  position: relative;
}
.hero-cta {
  display: flex;
  gap: 1rem;
  margin-bottom: 4rem;
  position: relative;
  flex-wrap: wrap;
  justify-content: center;
}

/* Module pills */
.module-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  position: relative;
  max-width: 1000px;
}
.module-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  transition: border-color 0.2s, color 0.2s;
}
.module-pill:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}
.module-pill .pill-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}

/* ── SECTIONS ── */
.section {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent-light);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 560px;
  margin-bottom: 3.5rem;
}
.section-center {
  text-align: center;
}
.section-center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

/* Feature cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: border-color 0.3s, transform 0.3s;
}
.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.2rem;
  background: rgba(147, 51, 234, 0.1);
  color: var(--accent-light);
}
.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Replacement strip */
.replace-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.replace-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.3s;
  min-width: 160px;
  justify-content: center;
}
.replace-card:hover { border-color: var(--border-hover); }
.replace-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}
.replace-card span {
  font-weight: 600;
  font-size: 0.95rem;
}

/* Screenshots */
.screenshot-showcase {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 40px 80px -20px rgba(0,0,0,0.6), 0 0 60px var(--accent-glow);
  margin: 3rem auto 0;
  max-width: 1100px;
}
.screenshot-showcase img {
  width: 100%;
  display: block;
}
.screenshot-tabs {
  display: flex;
  gap: 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.screenshot-tab {
  padding: 0.75rem 1.25rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border: none;
  background: none;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
  font-family: inherit;
}
.screenshot-tab:hover { color: var(--text-secondary); background: rgba(255,255,255,0.02); }
.screenshot-tab.active { color: var(--accent-light); background: rgba(147, 51, 234, 0.06); border-bottom: 2px solid var(--accent); }

/* Stats */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 4rem;
}
.stat-card {
  text-align: center;
  padding: 2rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
}
.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.stat-label {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

/* Tech specs table */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 2rem;
}
.specs-table th, .specs-table td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.specs-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.specs-table td { color: var(--text-secondary); }
.specs-table td:first-child { color: var(--text-primary); font-weight: 500; }
.specs-table tr:hover td { background: rgba(255,255,255,0.01); }

/* CTA */
.cta-section {
  text-align: center;
  padding: 6rem 2rem;
  position: relative;
}
.cta-section::before {
  content: '';
  position: absolute;
  bottom: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.3;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 0.75rem;
  max-width: 280px;
  line-height: 1.6;
}
.footer-col h4 {
  color: var(--text-primary);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}
.footer-col a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.25rem 0;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--text-secondary); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Page header for sub-pages */
.page-header {
  padding: 8rem 2rem 4rem;
  text-align: center;
  position: relative;
}
.page-header::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.3;
}
.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  position: relative;
}
.page-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto;
  position: relative;
}

/* Module detail cards */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}
.module-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: border-color 0.3s;
}
.module-card:hover { border-color: var(--border-hover); }
.module-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.module-badge {
  display: inline-flex;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge-core { background: rgba(16, 185, 129, 0.12); color: #34d399; }
.badge-media { background: rgba(147, 51, 234, 0.12); color: var(--accent-light); }
.badge-security { background: rgba(239, 68, 68, 0.12); color: #f87171; }
.badge-gadget { background: rgba(59, 130, 246, 0.12); color: #60a5fa; }
.badge-auto { background: rgba(245, 158, 11, 0.12); color: #fbbf24; }
.module-card h3 { font-size: 0.95rem; font-weight: 700; }
.module-card .codename { color: var(--text-muted); font-size: 0.8rem; font-weight: 400; }
.module-card p { color: var(--text-secondary); font-size: 0.82rem; margin-top: 0.5rem; line-height: 1.5; }

/* Download cards */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: 800px;
  margin: 3rem auto 0;
}
.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}
.download-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.download-card .dl-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.download-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}
.download-card .dl-version {
  color: var(--accent-light);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.download-card .dl-size {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 1.25rem;
}
.download-card .btn { width: 100%; justify-content: center; }

/* FAQ */
.faq-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 0.75rem;
  background: var(--bg-card);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: color 0.2s;
}
.faq-question:hover { color: var(--accent-light); }
.faq-chevron {
  transition: transform 0.3s;
  color: var(--text-muted);
  flex-shrink: 0;
}
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-answer-inner {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .hero { padding-top: 7rem; }
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}
@media (max-width: 768px) {
  .nav-toggle { display: block; }
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeUp 0.6s ease forwards;
  opacity: 0;
}
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }