/* =========================================================
   VideoBlur – Promotional Website Styles
   ========================================================= */

/* --- Reset & Base --- */

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

:root {
  --primary: #6366f1;
  --primary-light: #818cf8;
  --secondary: #8b5cf6;
  --accent: #f59e0b;
  --bg: #0a0a0a;
  --bg-surface: #141414;
  --bg-surface-2: #1e1e1e;
  --bg-surface-3: #282828;
  --text: #f0f0f0;
  --text-secondary: #a0a0a0;
  --text-muted: #666;
  --border: #2a2a2a;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* --- Utility --- */

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 64px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 4px 24px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
  background: var(--bg-surface-2);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-surface-3);
  border-color: var(--primary);
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.05rem;
}

/* --- Navigation --- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.nav.scrolled,
.nav-solid {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
  padding: 10px 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
}

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

.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

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

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

/* --- Hero --- */

.hero {
  position: relative;
  padding: 160px 0 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 50px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: var(--primary-light);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.7;
}

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

/* Phone Frame */

.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-frame {
  width: 280px;
  height: 560px;
  border-radius: 40px;
  background: var(--bg-surface);
  border: 3px solid var(--bg-surface-3);
  padding: 12px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 24px 80px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}

.phone-frame::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 28px;
  border-radius: 20px;
  background: var(--bg);
  z-index: 2;
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 28px;
  background: #111;
  overflow: hidden;
}

.phone-demo {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 48px 16px 20px;
}

.demo-video-area {
  flex: 1;
  border-radius: 12px;
  background: linear-gradient(145deg, #1a1a2e, #16213e);
  position: relative;
  overflow: hidden;
}

.demo-face-placeholder {
  position: absolute;
  top: 25%;
  left: 35%;
  width: 30%;
  height: 28%;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(99, 102, 241, 0.1));
  border: 1px solid rgba(139, 92, 246, 0.1);
}

.demo-blur-region {
  position: absolute;
  top: 22%;
  left: 32%;
  width: 36%;
  height: 34%;
  border-radius: 8px;
  border: 2px solid var(--primary);
  background: rgba(99, 102, 241, 0.08);
  backdrop-filter: blur(4px);
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.blur-pulse {
  position: absolute;
  inset: -4px;
  border-radius: 10px;
  border: 2px solid var(--primary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.04); }
}

.demo-controls {
  display: flex;
  gap: 8px;
  padding: 14px 0 8px;
  justify-content: center;
}

.demo-pill {
  width: 56px;
  height: 28px;
  border-radius: 8px;
  background: var(--bg-surface-2);
  border: 1px solid var(--border);
}

.demo-pill.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: transparent;
}

.demo-slider {
  padding: 8px 0;
}

.demo-slider-track {
  height: 4px;
  border-radius: 4px;
  background: var(--bg-surface-3);
}

.demo-slider-fill {
  width: 45%;
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

/* --- Features --- */

.features {
  padding: 120px 0;
}

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

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

.feature-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-4px);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary-light);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 650;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- How It Works --- */

.how-it-works {
  padding: 120px 0;
  background: var(--bg-surface);
}

.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  max-width: 900px;
  margin: 0 auto;
}

.step {
  flex: 1;
  text-align: center;
  padding: 0 24px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.step-connector {
  flex: 0 0 auto;
  width: 60px;
  height: 2px;
  background: var(--border);
  margin-top: 28px;
}

.step-content h3 {
  font-size: 1.05rem;
  font-weight: 650;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Pricing --- */

.pricing {
  padding: 120px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}

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

.pricing-card:hover {
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.06) 0%, var(--bg-surface) 50%);
  box-shadow: 0 0 60px rgba(99, 102, 241, 0.1);
}

.pricing-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 18px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.pricing-tier {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 8px;
}

.price-currency {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.price-amount {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.pricing-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.pricing-features {
  flex: 1;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.pricing-features li svg {
  flex-shrink: 0;
  color: var(--primary-light);
}

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

.pricing-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* --- FAQ --- */

.faq {
  padding: 120px 0;
  background: var(--bg-surface);
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item.active {
  border-color: rgba(99, 102, 241, 0.3);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}

.faq-question:hover {
  color: var(--primary-light);
}

.faq-chevron {
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--text-muted);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  color: var(--primary-light);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- CTA --- */

.cta {
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  text-align: center;
  position: relative;
}

.cta h2 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}

.cta p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
}

/* --- Footer --- */

.footer {
  padding: 64px 0 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 12px;
  line-height: 1.6;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 4px 0;
  transition: color var(--transition);
}

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

.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- Legal / Privacy Page --- */

.legal-page {
  padding: 120px 0 80px;
}

.legal-container {
  max-width: 740px;
}

.legal-page h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 8px;
}

.legal-updated {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 48px;
}

.legal-section {
  margin-bottom: 40px;
}

.legal-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.legal-section p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 12px;
}

.legal-section p:last-child {
  margin-bottom: 0;
}

.legal-section ul {
  padding-left: 20px;
  margin-bottom: 12px;
}

.legal-section li {
  list-style: disc;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  padding-left: 4px;
  margin-bottom: 4px;
}

.legal-section a {
  color: var(--primary-light);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-section a:hover {
  color: var(--primary);
}

/* --- Responsive --- */

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .phone-frame {
    width: 220px;
    height: 440px;
    border-radius: 32px;
    padding: 10px;
  }

  .phone-frame::before {
    width: 80px;
    height: 22px;
  }

  .phone-screen {
    border-radius: 22px;
  }

  .phone-demo {
    padding: 40px 12px 16px;
  }

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

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

  .pricing-card.featured {
    order: -1;
  }

  .steps {
    flex-direction: column;
    align-items: center;
    gap: 32px;
  }

  .step-connector {
    width: 2px;
    height: 32px;
    margin-top: 0;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-links {
    justify-items: center;
  }
}

@media (max-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 16px 24px 24px;
    gap: 0;
    border-bottom: 1px solid var(--border);
  }

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

  .nav-links a {
    padding: 12px 0;
    font-size: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero {
    padding: 130px 0 80px;
    min-height: auto;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}