/* ----- Reset & базовые стили ----- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #f8fafc;
  color: #0b1a33;
  line-height: 1.6;
}
a {
  color: #2563eb;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ----- Layout ----- */
.app {
  display: flex;
  min-height: 100vh;
}

/* ----- Sidebar ----- */
.sidebar {
  width: 280px;
  background: #ffffff;
  border-right: 1px solid #e5e7eb;
  padding: 1.5rem 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  overflow-y: auto;
  z-index: 100;
  transition: transform 0.3s ease;
}
.sidebar-brand {
  padding: 0 1.5rem 1.5rem;
  border-bottom: 1px solid #e5e7eb;
  margin-bottom: 1rem;
}
.sidebar-brand a {
  display: inline-block;
}
.sidebar-brand img {
  display: block;
  max-width: 180px;
  height: auto;
}

/* Поиск в сайдбаре */
.sidebar-search {
  padding: 0 1.5rem;
  margin-bottom: 1rem;
}
.sidebar-search input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 0.9rem;
  outline: none;
  transition: border 0.2s, box-shadow 0.2s;
}
.sidebar-search input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Навигация */
.nav {
  list-style: none;
  padding: 0 0.5rem;
}
.nav-item {
  margin-bottom: 0.2rem;
}
.nav-item a {
  display: block;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #334155;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
}
.nav-item a:hover {
  background: #eef2ff;
  color: #1a56db;
  text-decoration: none;
}
.nav-item a.active {
  background: #dbeafe;
  color: #1a56db;
  font-weight: 600;
}
.nav-divider {
  height: 1px;
  background: #e5e7eb;
  margin: 0.8rem 1rem;
}

/* ----- Main content ----- */
.main {
  margin-left: 280px;
  flex: 1;
  padding: 2rem 3rem 4rem;
  max-width: 1100px;
}

/* ----- Общие стили контента ----- */
.main h1 {
  font-size: 2.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid #e5e7eb;
  padding-bottom: 0.5rem;
}
.main h2 {
  font-size: 1.6rem;
  font-weight: 500;
  margin: 2rem 0 1rem;
}
.main h3 {
  font-size: 1.25rem;
  font-weight: 500;
  margin: 1.5rem 0 0.8rem;
}
.main h4 {
  font-size: 1.1rem;
  font-weight: 500;
  margin: 1.2rem 0 0.6rem;
}
.main p {
  margin-bottom: 1rem;
  color: #1e293b;
}
.main ul, .main ol {
  margin: 0.5rem 0 1rem 1.5rem;
}
.main li {
  margin-bottom: 0.3rem;
}
.main code {
  background: #eef2ff;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
  color: #1e293b;
}
.main pre {
  background: #0b1a33;
  color: #e2e8f0;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 0.9rem;
  margin: 1.5rem 0;
  position: relative;
}
.main pre code {
  background: transparent;
  padding: 0;
  color: inherit;
  font-size: inherit;
}
.main .copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: #334155;
  color: white;
  border: none;
  padding: 0.2rem 0.8rem;
  border-radius: 4px;
  font-size: 0.7rem;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.main .copy-btn:hover {
  opacity: 1;
}
.main table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}
.main table th {
  background: #f1f5f9;
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 2px solid #d1d5db;
  font-weight: 600;
}
.main table td {
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid #e5e7eb;
}
.main .note {
  background: #eff6ff;
  border-left: 4px solid #2563eb;
  padding: 0.8rem 1.2rem;
  border-radius: 4px;
  margin: 1rem 0;
}
.main .tip {
  background: #f0fdf4;
  border-left: 4px solid #16a34a;
  padding: 0.8rem 1.2rem;
  border-radius: 4px;
  margin: 1rem 0;
}
.main .warning {
  background: #fefce8;
  border-left: 4px solid #eab308;
  padding: 0.8rem 1.2rem;
  border-radius: 4px;
  margin: 1rem 0;
}
.main .lead {
  font-size: 1.2rem;
  color: #475569;
  margin-bottom: 1.5rem;
}
.main .code-block {
  background: #0b1a33;
  border-radius: 8px;
  margin: 1.5rem 0;
  overflow: hidden;
}
.main .code-block .code-header {
  background: #1e293b;
  padding: 0.4rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #94a3b8;
  font-size: 0.8rem;
}
.main .code-block .code-header .code-language {
  font-weight: 500;
}
.main .code-block .copy-btn {
  background: #334155;
  color: white;
  border: none;
  padding: 0.2rem 0.8rem;
  border-radius: 4px;
  font-size: 0.7rem;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.main .code-block .copy-btn:hover {
  opacity: 1;
}
.main .code-block pre {
  margin: 0;
  padding: 1rem 1.5rem;
  background: transparent;
  color: #e2e8f0;
}
.main .code-block pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}
.main .endpoint {
  background: #f1f5f9;
  border-radius: 8px;
  padding: 1.2rem;
  margin: 1.5rem 0;
  font-family: monospace;
  font-size: 1.1rem;
}
.main .endpoint .method {
  background: #2563eb;
  color: white;
  padding: 0.2rem 0.8rem;
  border-radius: 4px;
  margin-right: 1rem;
  font-weight: 600;
}
.main .endpoint .url {
  color: #0b1a33;
}
.main .badge {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}
.main .badge.production {
  background: #dc2626;
  color: white;
}
.main .badge.test {
  background: #f59e0b;
  color: #0b1a33;
}
.main .badge.recommended {
  background: #16a34a;
  color: white;
}
.main .badge.optional {
  background: #e5e7eb;
  color: #475569;
}
.main .conversion-up {
  color: #16a34a;
}
.main .conversion-down {
  color: #dc2626;
}
.main .screenshot-placeholder {
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  border-radius: 12px;
  padding: 3rem 2rem;
  text-align: center;
  color: #64748b;
  border: 2px dashed #cbd5e1;
  margin: 1.5rem 0;
}
.main .cohort-table-preview {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  margin: 1.5rem 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.main .cohort-row {
  display: flex;
  border-bottom: 1px solid #e5e7eb;
}
.main .cohort-row:last-child {
  border-bottom: none;
}
.main .cohort-cell {
  flex: 1;
  padding: 0.7rem 0.5rem;
  text-align: center;
  font-size: 0.85rem;
  border-right: 1px solid #e5e7eb;
}
.main .cohort-cell:first-child {
  flex: 2;
  font-weight: 600;
  background: #f8fafc;
}
.main .cohort-cell:last-child {
  border-right: none;
}
.main .cohort-value-high {
  background-color: #d4edda;
  color: #155724;
  font-weight: 600;
}
.main .cohort-value-medium {
  background-color: #fff3cd;
  color: #856404;
}
.main .cohort-value-low {
  background-color: #f8d7da;
  color: #721c24;
}
.main .funnel-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 2rem 0;
  padding: 1.5rem;
  background: #f8fafc;
  border-radius: 16px;
}
.main .funnel-step {
  width: 100%;
  max-width: 600px;
  margin: 0.3rem 0;
  padding: 0.8rem 1.5rem;
  background: white;
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.03);
  border-left: 4px solid #2563eb;
}
.main .funnel-step .step-name {
  font-weight: 600;
}
.main .funnel-step .step-count {
  color: #2563eb;
  font-weight: 700;
}
.main .funnel-step .step-percent {
  color: #64748b;
  font-size: 0.85rem;
}
.main .funnel-connector {
  color: #94a3b8;
  font-size: 1.2rem;
  margin: -0.2rem 0;
}
.main .game-metrics-grid, .main .saas-metrics-grid, .main .mobile-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}
.main .game-metric-card, .main .saas-metric-card, .main .mobile-metric-card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 1.5rem;
  transition: transform 0.2s, box-shadow 0.2s;
}
.main .game-metric-card:hover, .main .saas-metric-card:hover, .main .mobile-metric-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}
.main .game-metric-card .metric-header, .main .saas-metric-card .metric-header, .main .mobile-metric-card .metric-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
}
.main .game-metric-card .metric-icon, .main .saas-metric-card .metric-icon, .main .mobile-metric-card .metric-icon {
  font-size: 2rem;
}
.main .game-metric-card .metric-title, .main .saas-metric-card .metric-title, .main .mobile-metric-card .metric-title {
  font-weight: 600;
}
.main .game-metric-card .metric-value, .main .saas-metric-card .metric-value, .main .mobile-metric-card .metric-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: #2563eb;
  margin: 0.5rem 0;
}
.main .game-metric-card .metric-desc, .main .saas-metric-card .metric-desc, .main .mobile-metric-card .metric-desc {
  color: #64748b;
  font-size: 0.9rem;
}
.main .resource-card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 1.2rem;
  margin: 1rem 0;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.main .resource-card .resource-icon {
  font-size: 2.4rem;
  min-width: 3rem;
  text-align: center;
}
.main .resource-card .resource-info {
  flex: 1;
}
.main .resource-card .resource-name {
  font-weight: 600;
  font-size: 1.1rem;
}
.main .resource-card .resource-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: #2563eb;
}
.main .example-flow {
  background: #eff6ff;
  border-left: 4px solid #2563eb;
  padding: 1.2rem;
  border-radius: 8px;
  margin: 1.2rem 0;
}
.main .example-flow pre {
  margin: 0;
  background: transparent;
  padding: 0;
  color: #0b1a33;
  font-size: 0.9rem;
}
.main .example-flow pre code {
  background: transparent;
  padding: 0;
}
.main .faq-item {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  margin-bottom: 1rem;
  overflow: hidden;
}
.main .faq-item .faq-question {
  padding: 1rem 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1.05rem;
  transition: background 0.2s;
}
.main .faq-item .faq-question:hover {
  background: #f8fafc;
}
.main .faq-item .faq-question .arrow {
  font-size: 1.2rem;
  color: #2563eb;
  transition: transform 0.3s;
}
.main .faq-item.active .faq-question {
  background: #eff6ff;
}
.main .faq-item.active .faq-question .arrow {
  transform: rotate(180deg);
}
.main .faq-item .faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
}
.main .faq-item.active .faq-answer {
  padding: 0 1.5rem 1.5rem;
  max-height: 1000px;
}
.main .faq-item .faq-answer p {
  margin-bottom: 0.8rem;
}
.main .faq-item .faq-answer code {
  background: #f1f5f9;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85rem;
}
.main .faq-item .faq-answer .code-example {
  background: #0b1a33;
  border-radius: 8px;
  padding: 1rem;
  margin: 1rem 0;
  color: #e2e8f0;
}
.main .faq-item .faq-answer .code-example pre {
  margin: 0;
  background: transparent;
  padding: 0;
  color: inherit;
}
.main .faq-item .faq-answer .code-example pre code {
  background: transparent;
  padding: 0;
}
.main .faq-categories {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 1.5rem 0;
}
.main .faq-categories .category-btn {
  padding: 0.4rem 1.2rem;
  border: 2px solid #e5e7eb;
  background: white;
  border-radius: 30px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s;
}
.main .faq-categories .category-btn.active {
  background: #2563eb;
  border-color: #2563eb;
  color: white;
}
.main .faq-categories .category-btn:hover:not(.active) {
  border-color: #2563eb;
  background: #eff6ff;
}
.main .faq-search {
  background: white;
  border: 2px solid #e5e7eb;
  border-radius: 50px;
  padding: 0.3rem 0.3rem 0.3rem 1.5rem;
  display: flex;
  align-items: center;
  max-width: 500px;
  margin: 1.5rem auto;
}
.main .faq-search input {
  flex: 1;
  border: none;
  padding: 0.7rem 0.5rem;
  font-size: 1rem;
  outline: none;
  background: transparent;
}
.main .faq-search button {
  background: #2563eb;
  border: none;
  color: white;
  padding: 0.6rem 1.8rem;
  border-radius: 30px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s;
}
.main .faq-search button:hover {
  background: #1d4ed8;
}
.main .support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}
.main .support-card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.main .support-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
  border-color: #2563eb;
}
.main .support-card .card-icon {
  font-size: 2.8rem;
  margin-bottom: 1rem;
}
.main .support-card h3 {
  margin-bottom: 0.8rem;
}
.main .support-card p {
  color: #64748b;
  margin-bottom: 1.5rem;
}
.main .support-card .support-link {
  display: inline-block;
  background: #2563eb;
  color: white;
  padding: 0.7rem 2rem;
  border-radius: 30px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
}
.main .support-card .support-link:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
}
.main .support-card .support-link.secondary {
  background: white;
  color: #2563eb;
  border: 2px solid #2563eb;
}
.main .support-card .support-link.secondary:hover {
  background: #eff6ff;
}
.main .hours-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.main .hours-item {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 1rem;
}
.main .hours-item .hours-day {
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.main .hours-item .hours-time {
  color: #64748b;
  font-size: 0.9rem;
}
.main .status-section {
  background: linear-gradient(135deg, #1e3a8a, #3b82f6);
  border-radius: 20px;
  padding: 2rem;
  margin: 2rem 0;
  color: white;
  text-align: center;
}
.main .status-section h2 {
  color: white;
  border-bottom: none;
}
.main .status-section .status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.main .status-section .status-item {
  background: rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 1rem;
  backdrop-filter: blur(4px);
}
.main .status-section .status-item .status-name {
  font-size: 0.85rem;
  opacity: 0.9;
}
.main .status-section .status-item .status-value {
  font-size: 2rem;
  font-weight: 700;
  margin: 0.3rem 0;
}
.main .status-section .status-item .status-badge {
  display: inline-block;
  padding: 0.2rem 1rem;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255,255,255,0.2);
}
.main .status-section .status-item .status-badge.operational {
  background: #16a34a;
}
.main .status-section .status-item .status-badge.degraded {
  background: #f59e0b;
  color: #0b1a33;
}
.main .status-section .status-item .status-badge.outage {
  background: #dc2626;
}
.main .contact-section {
  background: white;
  border: 2px solid #e5e7eb;
  border-radius: 20px;
  padding: 2rem;
  margin: 2rem 0;
  text-align: center;
}
.main .contact-section .contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 500px;
  margin: 1.5rem auto;
}
.main .contact-section .contact-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1.2rem;
  background: #f8fafc;
  border-radius: 12px;
  transition: transform 0.2s;
}
.main .contact-section .contact-row:hover {
  transform: translateX(4px);
}
.main .contact-section .contact-row .contact-icon {
  font-size: 1.5rem;
  min-width: 2.5rem;
  text-align: center;
}
.main .contact-section .contact-row .contact-info {
  flex: 1;
  text-align: left;
}
.main .contact-section .contact-row .contact-info .contact-label {
  font-size: 0.75rem;
  color: #64748b;
}
.main .contact-section .contact-row .contact-info .contact-value {
  font-weight: 600;
  color: #2563eb;
}
.main .contact-section .contact-row .contact-info .contact-value a {
  color: #2563eb;
  text-decoration: none;
}
.main .contact-section .contact-row .contact-info .contact-value a:hover {
  text-decoration: underline;
}
.main .resource-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.2rem;
  margin: 2rem 0;
}
.main .resource-links .resource-item {
  background: #f8fafc;
  border-radius: 12px;
  padding: 1.2rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
}
.main .resource-links .resource-item:hover {
  background: #eff6ff;
  transform: translateY(-2px);
}
.main .resource-links .resource-item .resource-icon {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}
.main .resource-links .resource-item .resource-title {
  font-weight: 600;
}
.main .resource-links .resource-item .resource-desc {
  font-size: 0.85rem;
  color: #64748b;
}
.main .next-step-card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.2rem 0;
  transition: transform 0.2s, box-shadow 0.2s;
}
.main .next-step-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
  border-color: #2563eb;
}
.main .next-link {
  color: #2563eb;
  font-weight: 600;
}
.main .next-link:hover {
  text-decoration: underline;
}
.main .btn {
  display: inline-block;
  padding: 0.7rem 1.8rem;
  border-radius: 30px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}
.main .btn-primary {
  background: #2563eb;
  color: white;
}
.main .btn-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}
.main .btn-outline {
  background: white;
  color: #2563eb;
  border: 2px solid #2563eb;
}
.main .btn-outline:hover {
  background: #eff6ff;
  transform: translateY(-2px);
}
.main .widget-code {
  background: #f1f5f9;
  padding: 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  margin: 1rem 0;
  overflow-x: auto;
}

/* ----- Мобильное меню ----- */
.menu-toggle {
  display: none;
  position: fixed;
  top: 0.8rem;
  left: 1rem;
  z-index: 200;
  background: #1a56db;
  color: white;
  border: none;
  padding: 0.5rem 0.8rem;
  border-radius: 6px;
  font-size: 1.4rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  transition: background 0.2s;
}
.menu-toggle:hover {
  background: #1e40af;
}

/* ----- Адаптивность ----- */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: 280px;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main {
    margin-left: 0;
    padding: 1.5rem 1.2rem 3rem;
  }
  .menu-toggle {
    display: block;
  }
  .main h1 {
    font-size: 1.6rem;
  }
  .main h2 {
    font-size: 1.3rem;
  }
}