/* ========================================
   РекламусХаб — Landing Page Styles
   ======================================== */

:root {
  --color-bg: #0a0a0f;
  --color-bg-card: #12121a;
  --color-bg-card-hover: #1a1a28;
  --color-surface: #1e1e2e;
  --color-border: #2a2a3d;
  --color-border-accent: #4f46e5;
  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-primary-glow: rgba(99, 102, 241, 0.15);
  --color-accent-green: #22c55e;
  --color-accent-amber: #f59e0b;
  --color-accent-red: #ef4444;
  --color-accent-cyan: #06b6d4;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-heading: #f8fafc;
  --color-white: #ffffff;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px var(--color-primary-glow);
  --max-width: 1200px;
  --transition: 0.2s ease;
}

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--color-text-heading);
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p { color: var(--color-text-muted); }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-primary-hover); }

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

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge--primary {
  background: var(--color-primary-glow);
  color: var(--color-primary-hover);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.badge--green {
  background: rgba(34, 197, 94, 0.1);
  color: var(--color-accent-green);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

/* Section */
.section {
  padding: 96px 0;
  position: relative;
}

.section--alt {
  background: var(--color-bg-card);
}

.section__label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section__title {
  margin-bottom: 16px;
}

.section__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: 48px;
}

.section__header {
  text-align: center;
  margin-bottom: 64px;
}

.section__header .section__subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* ========================================
   HEADER / NAV
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text-heading);
}

.nav__logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-cyan));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav__links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav__links a:hover {
  color: var(--color-text-heading);
}

.nav__cta {
  display: inline-flex;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  color: var(--color-white);
  box-shadow: 0 4px 24px rgba(99, 102, 241, 0.4);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-hover);
}

.btn--sm {
  padding: 8px 20px;
  font-size: 0.85rem;
}

.btn--lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* ========================================
   HERO
   ======================================== */
.hero {
  padding: 160px 0 96px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero__badge {
  margin-bottom: 24px;
}

.hero__title {
  max-width: 800px;
  margin: 0 auto 20px;
}

.hero__subtitle {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero__bullets {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 32px;
  margin-bottom: 48px;
  list-style: none;
}

.hero__bullets li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text);
  font-size: 0.95rem;
}

.hero__bullets li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

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

/* ========================================
   HOW IT WORKS (Steps)
   ======================================== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step {
  position: relative;
  padding: 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}
.step:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-glow);
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-glow);
  color: var(--color-primary-hover);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 20px;
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.step__title {
  margin-bottom: 12px;
}

.step__text {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Connector lines between steps */
.steps .step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 50px;
  right: -17px;
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  display: none;
}

@media (min-width: 769px) {
  .steps .step:not(:last-child)::after {
    display: block;
  }
}

/* ========================================
   MODULES
   ======================================== */
.modules {
  display: grid;
  gap: 24px;
}

.module {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.module:hover {
  border-color: var(--color-border-accent);
}

.module__header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 32px;
  cursor: pointer;
  user-select: none;
}

.module__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.module__icon--core { background: linear-gradient(135deg, #6366f1, #818cf8); }
.module__icon--yandex { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.module__icon--vk { background: linear-gradient(135deg, #3b82f6, #60a5fa); }
.module__icon--avito { background: linear-gradient(135deg, #22c55e, #4ade80); }
.module__icon--telegram { background: linear-gradient(135deg, #06b6d4, #22d3ee); }

.module__info {
  flex: 1;
}

.module__name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-heading);
}

.module__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.module__toggle {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  transition: transform var(--transition);
}

.module.is-open .module__toggle {
  transform: rotate(180deg);
}

.module__body {
  display: none;
  padding: 0 32px 28px;
}

.module.is-open .module__body {
  display: block;
}

.module__features {
  list-style: none;
  display: grid;
  gap: 12px;
}

.module__features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.5;
}

.module__features li::before {
  content: '→';
  color: var(--color-primary);
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ========================================
   WINNER VAULT
   ======================================== */
.vault {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.vault__content {
  max-width: 540px;
}

.vault__text {
  font-size: 1.05rem;
  margin-bottom: 32px;
  line-height: 1.7;
}

.vault__actions {
  display: grid;
  gap: 16px;
}

.vault__action {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.vault__action-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.vault__action-icon--scale { background: rgba(34, 197, 94, 0.15); }
.vault__action-icon--vary { background: rgba(99, 102, 241, 0.15); }
.vault__action-icon--retest { background: rgba(245, 158, 11, 0.15); }
.vault__action-icon--replace { background: rgba(239, 68, 68, 0.15); }

.vault__action-name {
  font-weight: 600;
  color: var(--color-text-heading);
  font-size: 0.95rem;
}

.vault__action-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.vault__visual {
  position: relative;
}

.vault__card-stack {
  display: grid;
  gap: 16px;
}

.vault__sample {
  padding: 20px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.vault__sample-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.vault__sample-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.vault__sample-dot--green { background: var(--color-accent-green); }
.vault__sample-dot--amber { background: var(--color-accent-amber); }
.vault__sample-dot--red { background: var(--color-accent-red); }

.vault__sample-label {
  font-size: 0.9rem;
  color: var(--color-text);
}

.vault__sample-tag {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 100px;
  font-weight: 600;
}

.vault__sample-tag--scale {
  background: rgba(34, 197, 94, 0.15);
  color: var(--color-accent-green);
}
.vault__sample-tag--vary {
  background: rgba(99, 102, 241, 0.15);
  color: var(--color-primary-hover);
}
.vault__sample-tag--replace {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-accent-red);
}

/* ========================================
   MVP / NO INTEGRATIONS
   ======================================== */
.mvp-methods {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.mvp-method {
  padding: 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
}

.mvp-method__icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.mvp-method__title {
  margin-bottom: 8px;
}

.mvp-method__text {
  font-size: 0.9rem;
}

.mvp-benefits {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.mvp-benefit {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--color-text);
}

.mvp-benefit__check {
  color: var(--color-accent-green);
  font-weight: 700;
}

/* ========================================
   EXPORT
   ======================================== */
.export-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.export-card {
  padding: 40px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.export-card__icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.export-card__title {
  margin-bottom: 12px;
}

.export-card__text {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ========================================
   PRICING
   ======================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  padding: 40px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  position: relative;
  transition: all var(--transition);
}

.pricing-card:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-glow);
}

.pricing-card--featured {
  border-color: var(--color-primary);
}

.pricing-card--featured::before {
  content: 'Популярный';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  padding: 4px 16px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-card__name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text-heading);
  margin-bottom: 8px;
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}

.pricing-card__amount {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-text-heading);
}

.pricing-card__currency {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.pricing-card__period {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.pricing-card__target {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.pricing-card__features {
  list-style: none;
  display: grid;
  gap: 12px;
  margin-bottom: 32px;
}

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

.pricing-card__features li::before {
  content: '✓';
  color: var(--color-accent-green);
  font-weight: 700;
  flex-shrink: 0;
}

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

/* ========================================
   FAQ
   ======================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  user-select: none;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-heading);
}

.faq-item__icon {
  color: var(--color-text-muted);
  transition: transform var(--transition);
  font-size: 1.2rem;
}

.faq-item.is-open .faq-item__icon {
  transform: rotate(45deg);
}

.faq-item__answer {
  display: none;
  padding: 0 24px 20px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.faq-item.is-open .faq-item__answer {
  display: block;
}

/* ========================================
   FINAL CTA
   ======================================== */
.final-cta {
  text-align: center;
  padding: 96px 0;
  position: relative;
}

.final-cta::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  pointer-events: none;
}

.final-cta__title {
  max-width: 640px;
  margin: 0 auto 16px;
}

.final-cta__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto 40px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__copy {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer__compliance {
  max-width: 640px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  opacity: 0.7;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
  .nav__links { display: none; }

  .hero { padding: 120px 0 64px; }
  .hero__bullets { flex-direction: column; align-items: center; }

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

  .vault { grid-template-columns: 1fr; }
  .vault__visual { order: -1; }

  .mvp-methods { grid-template-columns: 1fr; }

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

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

  .footer__inner { flex-direction: column; text-align: center; }
}