:root {
  --bg: #ffffff;
  --bg-soft: #f8f7ff;
  --surface: #ffffff;
  --surface-2: #f4f3ff;
  --text: #0f0a1e;
  --text-muted: #5b5766;
  --primary: #6d28d9;
  --primary-soft: #ede9fe;
  --primary-bright: #7c3aed;
  --secondary: #0891b2;
  --secondary-soft: #cffafe;
  --accent: #db2777;
  --accent-soft: #fce7f3;
  --success: #10b981;
  --border: rgba(15, 10, 30, 0.07);
  --border-strong: rgba(15, 10, 30, 0.12);
  --shadow-sm: 0 4px 12px rgba(15, 10, 30, 0.05);
  --shadow: 0 18px 50px -16px rgba(15, 10, 30, 0.12);
  --shadow-lg: 0 30px 80px -24px rgba(109, 40, 217, 0.18);
  --radius: 28px;
  --radius-sm: 20px;
  --container: 1200px;
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

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

.section {
  padding: 120px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(32px, 5.5vw, 52px);
  font-weight: 800;
  line-height: 1.08;
  margin: 0 0 18px;
  letter-spacing: -0.03em;
}

.section-title span {
  color: var(--primary-bright);
}

.section-subtitle {
  font-size: 19px;
  color: var(--text-muted);
  margin: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.35), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn:hover::before {
  transform: translateX(100%);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-bright));
  color: #fff;
  box-shadow: 0 14px 36px -10px rgba(109, 40, 217, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 18px 44px -10px rgba(109, 40, 217, 0.45);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow);
}

.btn-white {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 14px 36px -10px rgba(15, 10, 30, 0.18);
}

.btn-white:hover {
  box-shadow: 0 18px 44px -10px rgba(15, 10, 30, 0.25);
}

.btn-lg {
  padding: 18px 32px;
  font-size: 17px;
  border-radius: 16px;
}

.btn-sm {
  padding: 12px 20px;
  font-size: 14px;
}

.btn-icon {
  flex-shrink: 0;
}

.btn-text-short {
  display: none;
}

.btn-text-full {
  display: inline;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-color: var(--border);
  box-shadow: 0 8px 30px -12px rgba(15, 10, 30, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 21px;
  color: var(--text);
}

.logo-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--primary-soft), var(--secondary-soft));
  color: var(--primary);
  border: 1px solid var(--border);
}

.logo-icon svg {
  width: 24px;
  height: 24px;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: var(--surface-2);
  border-radius: 12px;
  cursor: pointer;
}

.burger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  margin: 0 auto;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(340px, 86vw);
  height: 100vh;
  background: var(--bg);
  z-index: 1001;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  transform: translateX(110%);
  visibility: hidden;
  transition: transform 0.35s ease, visibility 0.35s ease;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border);
}

.mobile-menu.open {
  transform: translateX(0);
  visibility: visible;
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.mobile-close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--surface-2);
  border-radius: 12px;
  cursor: pointer;
  color: var(--text);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nav-link {
  padding: 16px 18px;
  border-radius: 14px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  transition: background 0.2s ease, color 0.2s ease;
}

.mobile-nav-link:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.mobile-nav-cta {
  margin-top: 20px;
  justify-content: center;
}

.overlay {
  position: fixed;
  inset: 0;
  height: 100vh;
  background: rgba(15, 10, 30, 1);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.overlay.open {
  opacity: 1;
  visibility: visible;
}

/* Hero */
.hero {
  position: relative;
  padding: calc(var(--header-height) + 100px) 0 140px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 85% 15%, rgba(109, 40, 217, 0.22) 0%, transparent 45%),
    radial-gradient(ellipse at 15% 85%, rgba(8, 145, 178, 0.18) 0%, transparent 45%),
    radial-gradient(ellipse at 50% 50%, rgba(219, 39, 119, 0.12) 0%, transparent 50%),
    var(--bg);
}

.hero::before,
.hero::after,
.features::before,
.how-it-works::before,
.benefits::before,
.faq::before {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
}

.hero::before {
  width: 520px;
  height: 520px;
  background: rgba(109, 40, 217, 0.22);
  top: -180px;
  right: -120px;
}

.hero::after {
  width: 460px;
  height: 460px;
  background: rgba(8, 145, 178, 0.2);
  bottom: -140px;
  left: -120px;
}

.features::before {
  width: 620px;
  height: 620px;
  background: rgba(219, 39, 119, 0.16);
  top: 50%;
  left: -220px;
  transform: translateY(-50%);
}

.how-it-works::before {
  width: 520px;
  height: 520px;
  background: rgba(109, 40, 217, 0.18);
  top: -100px;
  right: -150px;
}

.benefits::before {
  width: 580px;
  height: 580px;
  background: rgba(8, 145, 178, 0.18);
  bottom: -100px;
  left: -150px;
}

.faq::before {
  width: 500px;
  height: 500px;
  background: rgba(109, 40, 217, 0.18);
  top: -120px;
  right: -100px;
}

.features::after,
.how-it-works::after,
.benefits::after,
.faq::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
}

.features::after {
  width: 420px;
  height: 420px;
  background: rgba(109, 40, 217, 0.14);
  top: 30%;
  right: -120px;
}

.how-it-works::after {
  width: 400px;
  height: 400px;
  background: rgba(8, 145, 178, 0.16);
  bottom: -100px;
  left: -100px;
}

.benefits::after {
  width: 420px;
  height: 420px;
  background: rgba(219, 39, 119, 0.14);
  top: -80px;
  right: -100px;
}

.faq::after {
  width: 380px;
  height: 380px;
  background: rgba(8, 145, 178, 0.16);
  bottom: -80px;
  left: -80px;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  border: 2px solid var(--bg);
  margin-left: -12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.avatar.channel-avatar {
  background: linear-gradient(135deg, var(--primary-soft), var(--secondary-soft));
  color: var(--primary);
}

.avatar.channel-avatar.more {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 11px;
}

.avatar:first-child {
  margin-left: 0;
}

.section {
  padding: 120px 0;
  position: relative;
}
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  border: 2px solid var(--bg);
  margin-left: -12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.avatar.channel-avatar {
  background: linear-gradient(135deg, var(--primary-soft), var(--secondary-soft));
  color: var(--primary);
}

.avatar.channel-avatar.more {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 11px;
}

.avatar:first-child {
  margin-left: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-content {
  max-width: 580px;
  position: relative;
  z-index: 2;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
  border: 1px solid rgba(109, 40, 217, 0.12);
}

.badge::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.hero-title {
  font-size: clamp(44px, 6.5vw, 76px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  margin: 0 0 22px;
}

.hero-title .highlight {
  color: var(--primary-bright);
}

.hero-subtitle {
  font-size: 19px;
  color: var(--text-muted);
  margin: 0 0 36px;
  line-height: 1.7;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-trust p {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
}

.hero-trust strong {
  color: var(--text);
}

.trust-avatars {
  display: flex;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  border: 2px solid var(--bg);
  margin-left: -12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.avatar:first-child {
  margin-left: 0;
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 520px;
  z-index: 2;
}

.bg-grid {
  position: absolute;
  inset: -20%;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(109, 40, 217, 0.14) 1px, transparent 0);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}

.floating-icon {
  position: absolute;
  width: 64px;
  height: 64px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  box-shadow: var(--shadow), 0 0 0 1px var(--border);
  color: var(--primary);
  animation: float 5s ease-in-out infinite;
  animation-delay: var(--delay, 0s);
  z-index: 3;
}
.hero-center-icon {
  position: absolute;
  top: 38%;
  left: 52%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  box-shadow: var(--shadow), 0 0 0 1px var(--border);
  color: #2AABEE;
  z-index: 2;
  animation: float 5s ease-in-out infinite;
}

.hero-center-icon svg {
  width: 28px;
  height: 28px;
  margin-left: -2px;
}

.icon-message {
  top: 6%;
  left: 8%;
  color: var(--primary);
}

.icon-photo {
  top: 4%;
  right: 16%;
  color: var(--secondary);
}

.icon-video {
  top: 40%;
  left: 4%;
  color: var(--accent);
}

.icon-mic {
  bottom: 14%;
  right: 10%;
  color: var(--success);
}

.icon-heart {
  top: 24%;
  right: 6%;
  color: #ef4444;
}

.icon-like {
  bottom: 8%;
  left: 20%;
  color: #f59e0b;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(5deg);
  }
}


/* Problem */
.problem {
  background:
    radial-gradient(ellipse at 80% 80%, rgba(219, 39, 119, 0.06) 0%, transparent 40%),
    radial-gradient(ellipse at 20% 20%, rgba(109, 40, 217, 0.06) 0%, transparent 40%),
    var(--bg);
}

.problem-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 56px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 50% 50%, rgba(109, 40, 217, 0.05), transparent 60%);
  pointer-events: none;
}

.problem-item {
  text-align: center;
  position: relative;
  z-index: 1;
}

.problem-icon {
  width: 72px;
  height: 72px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--accent-soft), var(--primary-soft));
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 22px;
}

.problem-item h3 {
  font-size: 19px;
  font-weight: 800;
  margin: 0 0 12px;
}

.problem-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
}

/* Features */
.features {
  position: relative;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 50%, var(--bg) 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(109, 40, 217, 0.1), transparent 40%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(109, 40, 217, 0.2);
  box-shadow: var(--shadow);
}

.feature-card:hover::before,
.feature-card:hover::after {
  opacity: 1;
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary-soft), var(--secondary-soft));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-card h3 {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 12px;
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.65;
}

/* How it works */
.how-it-works {
  background:
    radial-gradient(ellipse at 80% 20%, rgba(109, 40, 217, 0.07) 0%, transparent 40%),
    radial-gradient(ellipse at 20% 80%, rgba(8, 145, 178, 0.06) 0%, transparent 40%),
    var(--bg);
}

.timeline {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.timeline-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(20px + 32px - 1px);
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--secondary), var(--accent));
  opacity: 0.35;
}

.timeline-item {
  position: relative;
  display: flex;
  gap: 36px;
  padding-left: 20px;
}

.timeline-marker {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-bright));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 900;
  flex-shrink: 0;
  box-shadow: 0 14px 36px -10px rgba(109, 40, 217, 0.35);
  z-index: 1;
}

.timeline-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  flex: 1;
  position: relative;
  overflow: hidden;
}

.timeline-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0.5;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.timeline-content h3 {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 10px;
}

.timeline-content p {
  margin: 0;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.65;
}

/* Benefits */
.benefits {
  background:
    radial-gradient(ellipse at 20% 20%, rgba(8, 145, 178, 0.06) 0%, transparent 40%),
    radial-gradient(ellipse at 80% 80%, rgba(219, 39, 119, 0.06) 0%, transparent 40%),
    var(--bg);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}

.benefit-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.benefit-card:hover {
  transform: translateY(-4px);
  border-color: rgba(109, 40, 217, 0.2);
}

.benefit-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.benefit-card h3 {
  font-size: 18px;
  font-weight: 800;
  margin: 0 0 8px;
}

.benefit-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

.social-proof {
  background: linear-gradient(135deg, var(--primary-soft), var(--secondary-soft));
  border: 1px solid rgba(109, 40, 217, 0.12);
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  box-shadow: var(--shadow);
  flex-wrap: wrap;
  text-align: center;
}

.proof-avatars {
  display: flex;
}

.proof-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 900;
  color: #fff;
  border: 2px solid var(--bg);
  margin-left: -14px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.proof-avatar.channel-avatar {
  background: linear-gradient(135deg, var(--primary-soft), var(--secondary-soft));
  color: var(--primary);
}

.proof-avatar.channel-avatar.more {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 13px;
}

.proof-avatar:first-child {
  margin-left: 0;
}

.proof-text {
  margin: 0;
  font-size: 20px;
  color: var(--text);
  font-weight: 800;
}

.proof-text strong {
  color: var(--primary-bright);
}

/* FAQ */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: rgba(109, 40, 30, 0.15);
}

.faq-question {
  padding: 26px 28px;
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color 0.2s ease;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  font-size: 28px;
  font-weight: 400;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.faq-item[open] .faq-question {
  color: var(--primary-bright);
}

.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 28px 26px;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.65;
}

.faq-answer p {
  margin: 0;
}

/* Final CTA */
.final-cta {
  padding: 100px 0;
}

.final-cta-inner {
  background: linear-gradient(135deg, var(--primary), var(--primary-bright));
  border-radius: var(--radius);
  padding: 80px 56px;
  text-align: center;
  color: #fff;
  box-shadow: 0 30px 80px -24px rgba(109, 40, 217, 0.35);
  position: relative;
  overflow: hidden;
}

.final-cta-inner::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 360px;
  height: 360px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.final-cta-inner::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 280px;
  height: 280px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 50%;
}

.final-cta-title {
  position: relative;
  z-index: 1;
  font-size: clamp(30px, 4.5vw, 44px);
  font-weight: 900;
  margin: 0 0 16px;
}

.final-cta-text {
  position: relative;
  z-index: 1;
  font-size: 19px;
  opacity: 0.92;
  margin: 0 auto 32px;
  max-width: 600px;
}

.final-cta .btn {
  position: relative;
  z-index: 1;
}

/* Footer */
.footer {
  background: #f8f7ff;
  color: var(--text-muted);
  padding: 80px 0 40px;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-logo {
  color: var(--text);
  margin-bottom: 18px;
}

.footer-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 300px;
}

.footer-title {
  color: var(--text);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 20px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s ease;
}
.reveal {
  opacity: 0.55;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 28px;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.footer-bottom p {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-disclaimer {
  max-width: 800px;
}


.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .floating-icon {
    animation: none;
  }
}

/* No-JS fallback */
@media (scripting: none) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* Tablet */
@media (max-width: 900px) {
  .nav-desktop {
    display: none;
  }

  .burger {
    display: flex;
  }

  .header-cta {
    display: inline-flex;
  }

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

  .hero-content {
    max-width: 100%;
  }

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

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

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

  .hero-visual {
    min-height: 460px;
  }


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

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

  .problem-card {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .problem-item {
    text-align: left;
    display: flex;
    gap: 20px;
    align-items: flex-start;
  }

  .problem-icon {
    margin: 0;
    flex-shrink: 0;
  }


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

/* Mobile */
@media (max-width: 640px) {
  :root {
    --header-height: 68px;
  }

  .btn-text-full {
    display: none;
  }

  .btn-text-short {
    display: inline;
  }

  .section {
    padding: 80px 0;
  }

  .container {
    padding: 0 18px;
  }

  .hero {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 80px;
  }

  .hero-title {
    font-size: 38px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-visual {
    min-height: 380px;
  }


  .floating-icon {
    width: 48px;
    height: 48px;
  }

  .floating-icon svg {
    width: 22px;
    height: 22px;
  }

  .icon-message { top: 4%; left: 2%; }
  .icon-photo { top: 2%; right: 8%; }
  .icon-video { top: 42%; left: 0%; }
  .icon-mic { bottom: 12%; right: 4%; }
  .icon-heart { top: 26%; right: 2%; }
  .icon-like { bottom: 4%; left: 10%; }


  .problem-card {
    padding: 32px 24px;
    gap: 28px;
  }
  .problem-item {
    display: block;
    text-align: center;
  }

  .problem-icon {
    margin: 0 auto 18px;
    width: 64px;
    height: 64px;
    border-radius: 20px;
  }

  .problem-icon svg {
    width: 28px;
    height: 28px;
  }

  .problem-item h3 {
    font-size: 17px;
  }

  .problem-item p {
    font-size: 14px;
  }

  .timeline-item {
    gap: 22px;
  }

  .timeline-marker {
    width: 48px;
    height: 48px;
    font-size: 20px;
  }

  .timeline-line {
    top: 0;
    bottom: 0;
    left: calc(20px + 24px - 1px);
  }

  .timeline-content {
    padding: 22px;
  }

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

  .social-proof {
    flex-direction: column;
    padding: 28px;
  }

  .faq-question {
    padding: 20px;
    font-size: 16px;
  }

  .faq-answer {
    padding: 0 20px 20px;
  }

  .final-cta-inner {
    padding: 48px 24px;
  }

  .final-cta .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Small mobile */
@media (max-width: 380px) {
  .hero-title {
    font-size: 32px;
  }

  .section-title {
    font-size: 26px;
  }

}