:root {
  --yellow: #FFD700;
  --dark: #222221;
  --darker: #1a1a19;
  --border: #33322f;
  --text: #ffffff;
  --muted: rgba(255,255,255,0.7);
  --success: #66bb6a;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: var(--darker); color: var(--text); line-height: 1.6; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.btn { padding: 12px 24px; border-radius: 8px; font-size: 14px; font-weight: 600; text-decoration: none; cursor: pointer; border: none; transition: all 0.2s; display: inline-flex; align-items: center; gap: 8px; }
.btn-primary { background: linear-gradient(135deg, #FFD700, #FFA500); color: var(--dark); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,215,0,0.3); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--border); }
.btn-dark { background: var(--dark); color: var(--text); padding: 16px 32px; font-size: 16px; }

.header { padding: 20px 0; border-bottom: 1px solid var(--border); }
.header .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.logo-block { display: flex; align-items: center; gap: 16px; }
.logo-block img { height: 72px; }
.logo-badge { background: var(--border); padding: 4px 12px; border-radius: 4px; font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
.header-cta { display: flex; gap: 12px; }

/* Гамбургер-меню */
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; transition: 0.3s; }
.mobile-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--darker); border-bottom: 1px solid var(--border); padding: 20px; flex-direction: column; gap: 12px; z-index: 100; }
.mobile-menu.open { display: flex; }
.mobile-menu .btn { width: 100%; justify-content: center; }

.hero { padding: 80px 0; text-align: center; }
.hero-badge { display: inline-block; background: rgba(255,215,0,0.1); border: 1px solid rgba(255,215,0,0.3); padding: 8px 20px; border-radius: 999px; font-size: 13px; color: var(--yellow); margin-bottom: 24px; }
.hero h1 { font-size: 48px; font-weight: 800; line-height: 1.1; margin-bottom: 24px; }
.hero h1 .highlight, .section-title .highlight { background: linear-gradient(135deg, #FFD700, #FFA500); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-small { font-size: 0.7em; font-weight: 600; }
.hero-subtitle { font-size: 18px; color: var(--muted); max-width: 650px; margin: 0 auto 40px; }
.hero-stats { display: flex; justify-content: center; gap: 48px; margin-top: 48px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat-value { font-size: 40px; font-weight: 800; color: var(--yellow); }
.hero-stat-label { font-size: 14px; color: var(--muted); }

.section { padding: 80px 0; }
.section-dark { background: var(--dark); }
.section-title { font-size: 32px; font-weight: 700; text-align: center; margin-bottom: 16px; }
.section-subtitle { text-align: center; color: var(--muted); font-size: 16px; margin-bottom: 40px; }

.architecture-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.arch-card { background: var(--darker); border: 1px solid var(--border); border-radius: 16px; padding: 28px; transition: all 0.3s; }
.arch-card:hover { transform: translateY(-4px); border-color: var(--yellow); }
.arch-card-icon { font-size: 40px; margin-bottom: 16px; }
.arch-card-subtitle { color: var(--yellow); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 8px; }
.arch-card h3 { font-size: 20px; margin-bottom: 8px; }
.arch-card p { color: var(--muted); font-size: 14px; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.feature-card { background: var(--dark); border: 1px solid var(--border); border-radius: 12px; padding: 20px; transition: all 0.3s; }
.feature-card:hover { border-color: rgba(255,215,0,0.5); }
.feature-icon { font-size: 28px; margin-bottom: 12px; }
.feature-card h4 { font-size: 15px; margin-bottom: 6px; }
.feature-card p { color: var(--muted); font-size: 13px; }

.comparison-table { max-width: 900px; margin: 0 auto; background: var(--darker); border-radius: 16px; overflow: hidden; border: 1px solid var(--border); }
.comparison-row { display: grid; grid-template-columns: 1.4fr 1fr 1fr; border-bottom: 1px solid var(--border); transition: background 0.2s; }
.comparison-row:hover { background: rgba(255,255,255,0.02); }
.comparison-row:last-child { border-bottom: none; }
.comparison-cell { padding: 18px 24px; font-size: 14px; display: flex; align-items: center; }
.comparison-cell:first-child { color: var(--muted); font-weight: 500; }

/* Цветные полосы и фоны - желтое свечение */
.success-strip { border-right: 4px solid var(--yellow); background: linear-gradient(to left, rgba(255, 215, 0, 0.04), transparent); color: var(--text); font-weight: 600; }
.fail-strip { border-right: 4px solid #555; background: linear-gradient(to left, rgba(255, 255, 255, 0.03), transparent); color: var(--muted); }

.comparison-header { background: var(--border); }
.comparison-header .comparison-cell { color: var(--text); font-weight: 700; text-transform: uppercase; font-size: 12px; letter-spacing: 0.05em; }

.demo-grid { display: grid; grid-template-columns: 280px 1fr; gap: 40px; align-items: start; }
.demo-tabs { display: flex; flex-direction: column; gap: 12px; }
.demo-tab { background: var(--dark); border: 1px solid var(--border); border-radius: 10px; padding: 16px; cursor: pointer; transition: all 0.2s; font-size: 14px; display: flex; align-items: center; gap: 10px; }
.demo-tab:hover { border-color: rgba(255,215,0,0.5); }
.demo-tab.active { border-color: var(--yellow); background: rgba(255,215,0,0.05); }
.demo-tab span { font-size: 18px; }

.demo-visual { background: var(--dark); border: 1px solid var(--border); border-radius: 16px; padding: 32px; display: flex; gap: 32px; }
.phone-mockup { 
  width: 280px; 
  height: 560px; 
  background: #000; 
  border-radius: 40px; 
  box-shadow: 0 0 0 10px #1a1a1a, 0 0 0 12px #333, 0 20px 50px rgba(0,0,0,0.5);
  position: relative; 
  flex-shrink: 0; 
  margin: 0 auto; 
  overflow: hidden;
}

/* Убираем SVG рамку */
.phone-frame { display: none; }

/* Динамик/Челка - УБРАНА */
.phone-mockup::before {
  display: none;
}

/* Экран на весь телефон */
.phone-screen { 
  position: absolute; 
  top: 0; 
  left: 0; 
  width: 100%; 
  height: 100%; 
  background: #fff; 
  display: flex; 
  flex-direction: column; 
  z-index: 5; 
  padding-top: 0; /* Убрал отступ под челку */
  border-radius: 40px;
}

.phone-header { background: var(--dark); padding: 12px 16px; display: flex; align-items: center; gap: 10px; flex-shrink: 0; color: #fff; font-size: 13px; }
.phone-name { font-size: 14px; font-weight: 600; }
.phone-status { font-size: 11px; color: var(--success); }
.phone-avatar { width: 36px; height: 36px; background: var(--yellow); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 16px; color: #000; }

/* Сообщения - светло-серый фон */
.phone-messages { flex: 1; background: #f4f4f5; padding: 14px; display: flex; flex-direction: column; gap: 8px; overflow-y: auto; background-image: none; }

.phone-msg { max-width: 85%; padding: 8px 12px; border-radius: 12px; font-size: 13px; line-height: 1.4; position: relative; animation: msgIn 0.3s cubic-bezier(0.25, 1, 0.5, 1); box-shadow: 0 1px 2px rgba(0,0,0,0.05); }
.phone-msg.in { align-self: flex-start; background: #fff; color: #000; border-bottom-left-radius: 4px; }
.phone-msg.out { align-self: flex-end; background: #effdde; color: #000; border-bottom-right-radius: 4px; }
.phone-msg.system { align-self: center; background: rgba(0,0,0,0.1); color: #fff; font-size: 11px; padding: 4px 12px; border-radius: 100px; text-align: center; box-shadow: none; }

/* Скроллбар */
.phone-messages::-webkit-scrollbar { width: 4px; }
.phone-messages::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.1); border-radius: 4px; }

.process-panel { flex: 1; }
.process-title { font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 20px; }
.process-step { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; opacity: 0.4; transition: all 0.3s; }
.process-step.active { opacity: 1; }
.process-step.done { opacity: 1; }
.process-step-icon { width: 44px; height: 44px; background: var(--border); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 18px; transition: all 0.3s; }
.process-step.active .process-step-icon { background: var(--yellow); box-shadow: 0 0 20px rgba(255,215,0,0.4); }
.process-step.done .process-step-icon { background: var(--success); }
.process-step-label { font-size: 13px; font-weight: 500; }
.process-step-bar { height: 3px; background: var(--border); border-radius: 2px; margin-top: 6px; overflow: hidden; }
.process-step-progress { height: 100%; width: 0; background: var(--yellow); transition: width 0.1s linear; }
.process-step.done .process-step-progress { width: 100%; background: var(--success); }
#runDemoBtn { margin-top: 24px; width: 100%; }

.adapt-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.adapt-card { background: var(--darker); border: 1px solid var(--border); border-radius: 12px; padding: 20px; text-align: center; transition: all 0.3s; }
.adapt-card:hover { transform: translateY(-4px); border-color: var(--yellow); }
.adapt-icon { font-size: 32px; margin-bottom: 12px; }
.adapt-card h4 { font-size: 14px; margin-bottom: 6px; }
.adapt-card p { color: var(--muted); font-size: 12px; }

.cta-section { background: linear-gradient(135deg, #FFD700, #FFA500); padding: 80px 0; text-align: center; }
.cta-section h2 { font-size: 32px; color: var(--dark); margin-bottom: 12px; }
.cta-section p { color: rgba(0,0,0,0.7); font-size: 16px; margin-bottom: 28px; }

.footer { background: var(--darker); border-top: 1px solid var(--border); padding: 32px 0; }
.footer .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-copy { color: var(--muted); font-size: 13px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 13px; }
.footer-links a:hover { color: var(--yellow); }

@media (max-width: 1024px) {
  .architecture-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .demo-grid { grid-template-columns: 1fr; }
  .demo-visual { flex-direction: column; align-items: center; }
  .adapt-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  /* Шапка с гамбургером */
  .header { position: relative; }
  .header .container { 
    justify-content: space-between;
    flex-wrap: nowrap;
  }
  .logo-block { 
    flex-direction: row; 
    align-items: center; 
    gap: 12px; 
  }
  .logo-block img { height: 64px; } /* Крупный логотип */
  .logo-badge { display: none; }
  .header-cta { display: none; } /* Скрываем кнопки, показываем в меню */
  .hamburger { display: block; }
  
  /* Hero */
  .hero { padding: 60px 0; }
  .hero h1 { font-size: 28px; }
  .hero-subtitle { font-size: 16px; }
  .hero-stats { 
    display: grid; 
    grid-template-columns: repeat(2, 1fr); 
    gap: 16px 32px; 
    max-width: 320px; 
    margin: 32px auto 0; 
  }
  .hero-stat { text-align: center; }
  .hero-stat-value { font-size: 28px; }
  
  /* Секции */
  .section { padding: 60px 0; }
  .section-title { font-size: 24px; }
  
  /* Гриды */
  .architecture-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .adapt-grid { grid-template-columns: repeat(2, 1fr); }
  
  /* Демо - перестановка: процессы сверху, табы снизу */
  .demo-grid { display: flex; flex-direction: column; gap: 20px; }
  .demo-visual { 
    order: 1; 
    flex-direction: column; 
    padding: 16px; 
    width: 100%; 
    max-width: 100%; 
    box-sizing: border-box;
  }
  .demo-tabs { order: 2; width: 100%; }
  .demo-tab { padding: 14px; font-size: 13px; }
  .process-panel { order: -1; width: 100%; padding: 0; }
  .phone-mockup { width: 100%; max-width: 280px; height: auto; aspect-ratio: 1/2; margin: 0 auto; }
  
  /* Таблица */
  .comparison-table { font-size: 13px; }
  .comparison-row { grid-template-columns: 1fr; }
  .comparison-cell { 
    padding: 12px 16px; 
    text-align: left !important; 
    border-bottom: 1px solid var(--border);
  }
  .comparison-row:last-child .comparison-cell:last-child { border-bottom: none; }
  .success-strip { border-right: none; border-left: 4px solid var(--yellow); }
  
  /* Footer */
  .footer .container { 
    flex-direction: column; 
    text-align: center;
    gap: 16px;
  }
  .footer-links { justify-content: center; flex-wrap: wrap; }
  .footer-copy { order: 2; }
  
  /* CTA */
  .cta-section { padding: 60px 0; }
  .cta-section h2 { font-size: 24px; }
}

/* Два блока в ряд */
.cta-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.videocall-block {
  background: linear-gradient(135deg, rgba(255,215,0,0.1), rgba(255,165,0,0.05));
  border: 1px solid rgba(255,215,0,0.3);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  margin-top: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Блок тестирования бота */
.test-bot-block {
  background: var(--dark);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  margin-top: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.test-bot-block h4 { font-size: 18px; margin-bottom: 8px; }
.test-bot-block p { color: var(--muted); font-size: 14px; margin-bottom: 16px; }
.test-bot-block .hint { background: rgba(255,215,0,0.1); border: 1px dashed rgba(255,215,0,0.4); border-radius: 8px; padding: 12px; font-size: 13px; color: var(--yellow); margin-bottom: 20px; }
.videocall-block h4 { font-size: 18px; margin-bottom: 8px; }
.videocall-block p { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.videocall-icon { font-size: 32px; margin-bottom: 12px; }

@media (max-width: 768px) {
  .cta-row { grid-template-columns: 1fr; gap: 16px; margin-top: 32px; }
  .videocall-block { padding: 24px; }
  .test-bot-block { padding: 24px; }
  .test-bot-block h4, .videocall-block h4 { font-size: 16px; }
  .videocall-icon { font-size: 28px; }
}