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

:root {
  --bg-primary: #050510;
  --bg-secondary: #0a0a1a;
  --bg-card: rgba(15, 15, 30, 0.7);
  --bg-card-hover: rgba(20, 20, 40, 0.9);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --accent-green: #10b981;
  --accent-green-dim: rgba(16, 185, 129, 0.15);
  --accent-indigo: #6366f1;
  --accent-indigo-dim: rgba(99, 102, 241, 0.15);
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Accent text */
.gradient-text {
  color: var(--accent-green);
}

.gradient-text-green {
  color: var(--accent-green);
}

/* Glass card */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  transition: all 0.3s ease;
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

/* Glow effects */
.glow-green { box-shadow: 0 0 40px rgba(16, 185, 129, 0.1); }
.glow-green:hover { box-shadow: 0 0 60px rgba(16, 185, 129, 0.15); }

.glow-indigo { box-shadow: 0 0 40px rgba(99, 102, 241, 0.1); }

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 15px;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(16, 185, 129, 0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  font-size: 15px;
}

.btn-secondary:hover {
  border-color: var(--accent-green);
  background: var(--accent-green-dim);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Section spacing */
.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(5, 5, 16, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 22px;
  font-weight: 800;
  text-decoration: none;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.logo span { color: var(--accent-green); }

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

/* Hero */
.hero {
  padding-top: 160px;
  padding-bottom: 100px;
  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, rgba(16, 185, 129, 0.08), transparent 70%);
  pointer-events: none;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

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

/* Stats bar */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--border-subtle);
  border-radius: 16px;
  overflow: hidden;
  margin-top: 80px;
}

.stat-item {
  background: var(--bg-secondary);
  padding: 32px 24px;
  text-align: center;
}

.stat-value {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.feature-grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.feature-grid-5 {
  grid-template-columns: repeat(5, 1fr);
}

.feature-grid-2 {
  grid-template-columns: 1fr 1fr;
}

.feature-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.signals-grid-2x3 {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.signals-grid-2x3 > :nth-child(1),
.signals-grid-2x3 > :nth-child(2) {
  grid-column: span 3;
}

.signals-grid-2x3 > :nth-child(n+3) {
  grid-column: span 2;
}

.feature-card {
  padding: 36px;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
}

.feature-icon-green { background: var(--accent-green-dim); color: var(--accent-green); }
.feature-icon-indigo { background: var(--accent-indigo-dim); color: var(--accent-indigo); }
.feature-icon-amber { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.feature-icon-red { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); }

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

.feature-card .learn-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-green);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  margin-top: 16px;
  transition: gap 0.2s;
}

.feature-card .learn-more:hover { gap: 10px; }

/* Signal type horizontal cards (screener page) */
.signal-types-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.signal-type-card {
  display: flex;
  align-items: stretch;
  gap: 0;
  padding: 0;
  overflow: hidden;
}

.signal-type-left {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 32px 32px 32px 36px;
}

.signal-type-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-top: 2px;
}

.signal-type-left .signal-type-text h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.signal-type-left .signal-type-text p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

.signal-type-right {
  flex-shrink: 0;
  width: 300px;
  padding: 32px 36px 32px 28px;
  border-left: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
}

.signal-type-right .check-list {
  margin: 0;
}

@media (max-width: 900px) {
  .signal-type-card {
    flex-direction: column;
  }
  .signal-type-left {
    padding: 24px 24px 16px;
  }
  .signal-type-right {
    width: auto;
    border-left: none;
    border-top: 1px solid var(--border-subtle);
    padding: 16px 24px 24px;
  }
}

/* Filters two-column layout */
.filters-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 48px;
  max-width: 960px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .filters-columns {
    grid-template-columns: 1fr;
  }
}

/* Section headers */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-green);
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Pipeline / How it works */
.pipeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.pipeline-step {
  text-align: center;
  padding: 32px 20px;
  position: relative;
}

.pipeline-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-green-dim);
  color: var(--accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  margin: 0 auto 16px;
}

.pipeline-step h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.pipeline-step p {
  font-size: 14px;
  color: var(--text-muted);
}

.pipeline.pipeline-3col {
  grid-template-columns: repeat(3, 1fr);
}

.pipeline-stagger {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.pipeline-stagger .pipeline-step {
  text-align: center;
  padding: 32px 20px;
  position: relative;
  grid-column: span 2;
}
.pipeline-stagger .pipeline-step:nth-child(4) { grid-column: 2 / 4; }
.pipeline-stagger .pipeline-step:nth-child(5) { grid-column: 4 / 6; }
@media (max-width: 768px) {
  .pipeline-stagger { grid-template-columns: repeat(4, 1fr); }
  .pipeline-stagger .pipeline-step { grid-column: span 2; }
  .pipeline-stagger .pipeline-step:nth-child(4) { grid-column: span 2; }
  .pipeline-stagger .pipeline-step:nth-child(5) { grid-column: span 2; }
}
@media (max-width: 480px) {
  .pipeline-stagger { grid-template-columns: 1fr; }
  .pipeline-stagger .pipeline-step { grid-column: span 1; }
}

/* CTA section */
.cta-section {
  text-align: center;
  padding: 80px 0;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(16, 185, 129, 0.06), transparent 70%);
  pointer-events: none;
}

.cta-section h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--text-secondary);
  font-size: 17px;
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 12px;
  max-width: 280px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 16px;
  align-items: center;
}

.footer-social {
  display: inline-flex;
  color: var(--text-muted);
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-social:hover {
  color: var(--accent-green);
}

.footer-social svg {
  display: block;
}

/* Product page hero (smaller) */
.page-hero {
  padding-top: 140px;
  padding-bottom: 60px;
}

.page-hero h1 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.page-hero p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* Detail sections (alternating) */
.detail-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 60px 0;
}


.detail-content h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.detail-content p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 24px;
}

.detail-visual {
  border-radius: 16px;
  overflow: hidden;
  min-height: 300px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

.detail-visual:empty { display: none; }

/* Detail checklist column */
.detail-checklist {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}


/* Check list */
.check-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.check-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.check-list li::before {
  content: '✓';
  color: var(--accent-green);
  font-weight: 700;
  position: absolute;
  left: 0;
  top: 0;
}

/* Tag/badge */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background: var(--accent-green-dim);
  color: var(--accent-green);
}

.tag-indigo {
  background: var(--accent-indigo-dim);
  color: var(--accent-indigo);
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.pricing-card {
  padding: 40px 32px;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--accent-green);
  box-shadow: 0 0 60px rgba(16, 185, 129, 0.1);
}

.pricing-card .price {
  font-size: 48px;
  font-weight: 800;
  margin: 20px 0;
}

.pricing-card .price span {
  font-size: 16px;
  color: var(--text-muted);
  font-weight: 400;
}

/* Blog */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.blog-card {
  padding: 0;
  overflow: hidden;
}

.blog-card-thumb {
  height: 200px;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

.blog-card-body {
  padding: 28px;
}

.blog-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.blog-card-body h3 a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s;
}

.blog-card-body h3 a:hover { color: var(--accent-green); }

.blog-card-body p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.blog-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  overflow: hidden;
  margin-left: 4px;
}

.lang-btn {
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.5px;
}

.lang-btn:first-child { border-right: 1px solid var(--border-subtle); }

.lang-btn.active {
  color: var(--accent-green);
  background: var(--accent-green-dim);
}

.lang-btn:hover:not(.active) { color: var(--text-primary); }

/* Grid entry/exit two-column layout */
.grid-entry-exit {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* Responsive */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .feature-grid-5 { grid-template-columns: repeat(3, 1fr); }
  .pipeline.pipeline-3col { grid-template-columns: repeat(3, 1fr); }
  .signals-grid-2x3 { grid-template-columns: repeat(3, 1fr); }
  .signals-grid-2x3 > :nth-child(1),
  .signals-grid-2x3 > :nth-child(2) { grid-column: span 1; }
  .signals-grid-2x3 > :nth-child(n+3) { grid-column: span 1; }

  /* detail-section стэкается + контент центрируется на узких экранах */
  .detail-section {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }
  .detail-content { text-align: center; }
  .detail-content .btn-primary,
  .detail-content .btn-secondary { margin-left: auto; margin-right: auto; }
  .detail-checklist { justify-content: center; }
  .detail-section .check-list {
    display: inline-flex;
    text-align: left;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  /* Section spacing — компактнее на мобиле, чтобы соседние одинаково-фоновые
     секции не выглядели как огромный пустой блок */
  .section { padding: 48px 0; }
  .section-sm { padding: 32px 0; }
  .section-header { margin-bottom: 28px; }
  .section-header p { font-size: 15px; }
  .hero { padding-top: 110px; padding-bottom: 48px; }
  .page-hero { padding-top: 100px; padding-bottom: 28px; }
  .cta-section { padding: 48px 0; }
  .container { padding: 0 20px; }

  /* Две соседние секции с одинаковым inline bg-secondary — визуально один
     блок; убираем двойной вертикальный padding между ними */
  .section[style*="bg-secondary"] + .section[style*="bg-secondary"] {
    padding-top: 0;
  }

  /* Navigation — компактная шапка: логотип не переносится, Sign In скрыт,
     основная CTA — компактная */
  .logo { font-size: 18px; white-space: nowrap; }
  .nav-actions { gap: 8px; }
  .nav-actions .btn-secondary { display: none; }
  .nav-actions .btn-primary { padding: 8px 16px; font-size: 14px; }
  .lang-toggle { margin-left: 0; }
  .lang-btn { padding: 5px 8px; font-size: 11px; }

  /* Grids: только реально плотные сетки уходят в одну колонку.
     pipeline-3col и feature-grid-4 нормально смотрятся в 2 колонки. */
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid-2 { grid-template-columns: 1fr; }
  .feature-grid-3 { grid-template-columns: 1fr; }
  .feature-grid-4 { grid-template-columns: 1fr 1fr; }
  .feature-grid-5 { grid-template-columns: 1fr 1fr; }
  .pipeline { grid-template-columns: 1fr 1fr; }
  .pipeline.pipeline-3col { grid-template-columns: 1fr 1fr; }
  .pipeline-step { padding: 24px 16px; }
  .pipeline-step h4 { font-size: 15px; }
  .pipeline-step p { font-size: 13px; }
  .signals-grid-2x3 { grid-template-columns: 1fr; }
  .signals-grid-2x3 > :nth-child(1),
  .signals-grid-2x3 > :nth-child(2),
  .signals-grid-2x3 > :nth-child(n+3) { grid-column: span 1; }
  .grid-entry-exit { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr 1fr; }

  /* Карточки: компактнее + центровка содержимого на мобиле */
  .feature-card { padding: 28px 20px; text-align: center; }
  .feature-card .feature-icon { margin-left: auto; margin-right: auto; }
  .feature-card .check-list {
    display: inline-flex;
    text-align: left;
    margin-left: auto;
    margin-right: auto;
  }
  .feature-card .learn-more { justify-content: center; }
  .feature-card .tag { margin-left: auto; margin-right: auto; }
  .glass-card { padding: 24px; }

  /* Signal type horizontal cards (screener) — на мобиле центрируем */
  .signal-type-left { padding: 24px 20px 12px; flex-direction: column; text-align: center; }
  .signal-type-icon { margin: 0 auto 12px; }
  .signal-type-right { padding: 12px 20px 24px; justify-content: center; }
  .signal-type-right .check-list {
    display: inline-flex;
    text-align: left;
    margin-left: auto;
    margin-right: auto;
  }

  /* Hero / CTA — кнопки в колонку и по центру */
  .hero h1 { font-size: 32px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary { width: 100%; max-width: 320px; justify-content: center; }

  /* Footer — социалки гарантированно видны и крупные для тапа */
  .footer { padding: 40px 0 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .footer-brand p { margin-left: auto; margin-right: auto; }
  .footer-col ul { align-items: center; }
  .footer-bottom {
    flex-direction: column-reverse;
    gap: 16px;
    align-items: center;
    text-align: center;
  }
  .footer-socials { display: flex !important; justify-content: center; gap: 24px; }
  .footer-social {
    display: inline-flex !important;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    border: 1px solid var(--border-subtle);
  }
  .footer-social svg { width: 20px; height: 20px; }
}

@media (max-width: 480px) {
  .stats-bar { grid-template-columns: 1fr; }
  .feature-grid-4 { grid-template-columns: 1fr; }
  .feature-grid-5 { grid-template-columns: 1fr; }
  .pipeline { grid-template-columns: 1fr; }
  .pipeline.pipeline-3col { grid-template-columns: 1fr; }
}