/* ==========================================================================
   1. CORE DESIGN SYSTEM & VARIABLES
   ========================================================================== */
:root {
  --bg-color: #ffffff;
  --text-color: #1e293b;
  --text-muted: #64748b;
  --accent-color: #2563eb; /* Electric Blue */
  --accent-hover: #1d4ed8;
  --dark-panel: #0f172a;
  --light-panel: #f8fafc;
  --border-color: #e2e8f0;
  --max-width: 1200px;
  --article-width: 800px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* Глобальная адаптивность картинок */
img {
  width: 100% !important;
  max-width: 100% !important;
  height: auto !important;
  display: block;
}

/* ==========================================================================
   2. HEADER, NAVIGATION & TRUST BADGES
   ========================================================================== */
.header {
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(5px);
  z-index: 1000;
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
}

.logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--dark-panel);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 5px;
}

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

.nav { 
  display: flex; 
  align-items: center; 
}

.nav-list { 
  display: flex; 
  list-style: none; 
  gap: 25px; 
}

.nav-link {
  text-decoration: none;
  color: #323c4a; 
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-link.active { 
  color: var(--dark-panel); 
  font-weight: 600; 
}

.nav-toggle { 
  display: none; 
}

.nav-toggle-label { 
  display: none; 
  cursor: pointer; 
  padding: 5px; 
}

/* Плашка с логотипами/тегами SaaS систем */
.trust-badges {
  background: var(--light-panel);
  border-bottom: 1px solid var(--border-color);
  padding: 20px 15px;
  text-align: center;
}

.badges-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 40px;
}

.badge-item {
  font-size: 14px;
  font-weight: 700;
  color: #475569; 
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================================
   3. HERO SECTION & CATALOG INTRO
   ========================================================================== */
.hero {
  background: var(--dark-panel);
  color: #ffffff;
  padding: 80px 20px;
  text-align: center;
}

.hero-container {
  max-width: 800px;
  margin: 0 auto;
}

/* Фикс белого цвета на темном фоне главной */
.hero h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
  color: #ffffff !important; 
}

.hero h1 span { 
  color: #60a5fa !important; 
}

.hero p {
  font-size: 19px;
  color: #94a3b8;
  max-width: 650px;
  margin: 0 auto 30px auto;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 20px;
  border-top: 1px solid #1e293b;
  padding-top: 30px;
}

.stat-item { 
  text-align: left; 
}

.stat-val { 
  font-size: 24px; 
  font-weight: 700; 
  color: #ffffff; 
}

.stat-lbl { 
  font-size: 13px; 
  color: #94a3b8; 
  text-transform: uppercase; 
}

/* Стили заголовка каталога (Blueprints Page) */
.catalog-intro { 
  background-color: var(--light-panel); 
  border-bottom: 1px solid var(--border-color); 
  padding: 50px 20px 40px 20px; 
}

.intro-container { 
  max-width: var(--max-width); 
  margin: 0 auto; 
  display: flex;
  flex-direction: column; 
}

/* ФИКС НАЛОЖЕНИЯ: Задаем изолированный отступ вниз для хлебных крошек в каталоге */
.intro-container .breadcrumbs {
  margin-bottom: 15px !important;
  position: relative;
  display: block;
}

.catalog-intro h1 { 
  font-size: 36px; 
  font-weight: 800; 
  color: var(--dark-panel); 
  margin-top: 0;
  margin-bottom: 15px; 
  line-height: 1.3;
}

.catalog-intro p { 
  font-size: 17px; 
  color: var(--text-muted); 
  max-width: 700px; 
  margin-bottom: 0;
}

/* Стили интерактивных тегов-фильтров */
.filter-bar { 
  display: flex; 
  gap: 10px; 
  margin-top: 30px; 
  overflow-x: auto; 
  padding-bottom: 5px; 
}

.filter-btn {
  background: #ffffff; 
  border: 1px solid var(--border-color); 
  padding: 6px 16px;
  border-radius: 20px; 
  font-size: 14px; 
  font-weight: 500; 
  color: var(--text-color); 
  cursor: pointer; 
  white-space: nowrap;
  transition: all 0.2s;
}

.filter-btn:hover, .filter-btn.active { 
  background: var(--dark-panel); 
  color: #ffffff; 
  border-color: var(--dark-panel); 
}

/* ==========================================================================
   4. LAYOUT GRIDS & CONTAINER CHANNELS
   ========================================================================== */
.main-container {
  max-width: var(--max-width);
  margin: 60px auto;
  padding: 0 20px;
}

.main-layout {
  max-width: var(--max-width);
  margin: 40px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: var(--article-width) 1fr;
  gap: 50px;
}

.catalog-container { 
  max-width: var(--max-width); 
  margin: 50px auto 80px auto; 
  padding: 0 20px; 
}

.breadcrumbs {
  grid-column: 1 / -1;
  font-size: 14px;
  color: #475569 !important; 
  margin-bottom: -20px;
}

/* Контрастные ссылки внутри хлебных крошек (Home, Blueprints) */
.breadcrumbs a { 
  color: var(--accent-color); 
  text-decoration: underline; 
  font-weight: 500;
}

.breadcrumbs a:hover { 
  color: var(--accent-hover);
  text-decoration: none; 
}

.content-area { 
  max-width: var(--article-width); 
}

/* ==========================================================================
   5. HUB, CATALOG CARD GRIDS & CONTACT INTERFACES
   ========================================================================== */
.cluster-section { 
  margin-bottom: 60px; 
}

.cluster-header {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 15px;
  margin-bottom: 30px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.cluster-title { 
  font-size: 24px; 
  font-weight: 800; 
  color: var(--dark-panel); 
}

.cluster-count { 
  font-size: 14px; 
  color: var(--text-muted); 
  font-weight: 500; 
}

.articles-grid, .catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 30px;
}

.article-card, .blueprint-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 25px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
}

.article-card:hover, .blueprint-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 20px -5px rgba(0, 0, 0, 0.05);
  border-color: #cbd5e1;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--accent-color);
  margin-bottom: 12px;
}

.card-level { 
  color: var(--text-muted); 
  background: var(--light-panel); 
  padding: 2px 8px; 
  border-radius: 4px; 
  text-transform: capitalize;
}

.card-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--dark-panel);
  line-height: 1.4;
  margin-bottom: 12px;
}

.card-excerpt {
  font-size: 15px;
  color: #475569;
  margin-bottom: 20px;
  flex-grow: 1;
}

.card-footer {
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--light-panel);
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
}

/* Стили карточек контактов */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 30px;
}

.contact-card {
  background: var(--light-panel);
  border: 1px solid var(--border-color);
  padding: 25px;
  border-radius: 8px;
}

.contact-card h2 { 
  font-size: 18px; 
  font-weight: 700; 
  color: var(--dark-panel); 
  margin-top: 0;
  margin-bottom: 10px; 
}

.contact-card p { 
  font-size: 15px; 
  color: #475569; 
  margin: 0; 
}

.contact-card a { 
  color: var(--accent-color); 
  text-decoration: none; 
  font-weight: 600; 
}

.contact-card a:hover { 
  text-decoration: underline; 
}

/* Форма обратной связи */
.contact-form {
  margin-top: 40px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 35px;
  border-radius: 8px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.form-group { 
  margin-bottom: 20px; 
}

.form-group label { 
  display: block; 
  font-size: 14px; 
  font-weight: 600; 
  color: var(--dark-panel); 
  margin-bottom: 6px; 
}

.form-control {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: inherit;
  font-size: 15px;
  color: var(--text-color);
  transition: border-color 0.2s;
}

.form-control:focus { 
  outline: none; 
  border-color: var(--accent-color); 
}

.btn-submit {
  background: var(--accent-color);
  color: #ffffff;
  padding: 12px 30px;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-submit:hover { 
  background: var(--accent-hover); 
}

/* ==========================================================================
   6. ARTICLE CORE TYPOGRAPHY, LISTS & FIXED CODE BLOCKS
   ========================================================================== */
h1 { 
  font-size: 38px; 
  line-height: 1.2; 
  font-weight: 800; 
  color: var(--dark-panel); 
  margin-bottom: 25px; 
}

h2 { 
  font-size: 24px; 
  font-weight: 700; 
  color: var(--dark-panel); 
  margin: 35px 0 15px 0; 
}

p { 
  margin-bottom: 20px; 
  font-size: 16px; 
  color: #334155; 
}

/* Базовые стили списков со страниц статей и Legal/Privacy-Policy */
ul, ol { 
  margin-bottom: 25px; 
  padding-left: 20px; 
  color: #334155; 
}

li { 
  margin-bottom: 8px; 
  font-size: 16px; 
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
  margin-bottom: 30px;
}

.author-badge { 
  font-weight: 600; 
  color: var(--dark-panel); 
}

article h2 { 
  font-size: 26px; 
  font-weight: 700; 
  color: var(--dark-panel); 
  margin: 35px 0 15px 0; 
}

article h3 { 
  font-size: 20px; 
  font-weight: 700; 
  color: var(--dark-panel); 
  margin: 25px 0 10px 0; 
}

article p { 
  margin-bottom: 20px; 
  font-size: 17px; 
  color: #334155; 
  text-align: justify;
}

article ul, article ol { 
  margin-bottom: 25px; 
  padding-left: 20px; 
  color: #334155; 
}

article li { 
  margin-bottom: 8px; 
  font-size: 17px; 
}

/* Фикс контейнеров для тегов кода */
pre { 
  background: #f8fafc; 
  border: 1px solid var(--border-color); 
  padding: 15px; 
  border-radius: 8px; 
  margin: 20px 0;
  display: table;            
  table-layout: fixed;       
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box;
}

code { 
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; 
  font-size: 14px; 
  color: #0f172a;
  display: block;
  width: 100%;
  white-space: pre-wrap;       
  word-wrap: break-word;       
  word-break: break-all;
}

/* ==========================================================================
   7. TECHNICAL ASSETS, CONVERSION INSERTS & TRUST CARDS
   ========================================================================== */
.tech-figure {
  margin: 30px 0;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.tech-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.tech-caption {
  background: var(--light-panel);
  padding: 12px 15px;
  font-size: 14px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  font-style: italic;
}

.author-card {
  background: var(--light-panel);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 30px;
  margin: 40px 0;
  display: flex;
  gap: 25px;
  align-items: flex-start;
}

.author-avatar-container {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid var(--accent-color);
  background: #cbd5e1;
}

.author-avatar-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-info h3 { 
  font-size: 20px; 
  font-weight: 700; 
  color: var(--dark-panel); 
  margin-bottom: 4px; 
}

.author-title { 
  font-size: 14px; 
  color: var(--accent-color); 
  font-weight: 600; 
  text-transform: uppercase; 
  letter-spacing: 0.5px; 
  margin-bottom: 12px; 
}

.linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: #0a66c2;
  text-decoration: none;
  font-weight: 600;
  margin-top: 10px;
}

.linkedin-link:hover { 
  text-decoration: underline; 
}

.audit-list { 
  list-style: none; 
  margin-bottom: 30px; 
}

.audit-item {
  position: relative;
  padding-left: 30px;
  margin-bottom: 15px;
  font-size: 16px;
  color: #334155;
}

.audit-item::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-color);
  font-weight: 800;
  font-size: 18px;
}

.conversion-box {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-left: 4px solid var(--accent-color);
  padding: 25px;
  border-radius: 0 8px 8px 0;
  margin: 35px 0;
}

.conversion-box h3 { 
  font-size: 18px; 
  font-weight: 700; 
  color: var(--dark-panel); 
  margin-top: 0;   
  margin-bottom: 10px; 
}

.conversion-box p { 
  font-size: 15px; 
  color: #1e3a8a; 
  margin-bottom: 15px; 
}

.cta-button {
  display: inline-block;
  background: var(--accent-color);
  color: #ffffff;
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: background 0.2s;
}

.cta-button:hover { 
  background: var(--accent-hover); 
}

/* ==========================================================================
   8. SIDEBAR CHANNELS
   ========================================================================== */
.sidebar { 
  display: flex; 
  flex-direction: column; 
  gap: 30px; 
}

.sidebar-widget {
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: 8px;
  background: #fafafa;
}

.sidebar-widget h3 { 
  font-size: 16px; 
  font-weight: 700; 
  text-transform: uppercase; 
  letter-spacing: 0.5px; 
  margin-bottom: 15px; 
  color: var(--dark-panel); 
}

.sidebar-text { 
  font-size: 14px; 
  color: var(--text-muted); 
  line-height: 1.6; 
}

.sidebar-list { 
  list-style: none; 
  display: flex; 
  flex-direction: column; 
  gap: 12px; 
}

.sidebar-list a { 
  color: var(--text-muted); 
  text-decoration: none; 
  font-size: 15px; 
  font-weight: 500; 
}

.sidebar-list a:hover { 
  color: var(--accent-color); 
}

/* ==========================================================================
   9. FOOTER INTERFACE
   ========================================================================== */
.footer {
  background: var(--dark-panel);
  color: #cbd5e1; 
  padding: 60px 20px 30px 20px;
  border-top: 1px solid var(--border-color);
  margin-top: 80px; 
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr repeat(2, 1fr);
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #1e293b;
}

/* Делаем описание чистым белым для максимального контраста */
.footer-brand p { 
  margin-top: 10px; 
  font-size: 14px; 
  max-width: 300px; 
  color: #f2f1f0 !important; 
}

.footer-logo { 
  color: #ffffff; 
  font-size: 20px; 
  font-weight: 800; 
  text-decoration: none; 
}

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

.footer-title { 
  color: #ffffff; 
  font-size: 15px; 
  font-weight: 600; 
  margin-bottom: 15px; 
  text-transform: uppercase; 
  letter-spacing: 0.5px; 
}

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

/* Повышаем контрастность ссылок в подвале */
.footer-links a { 
  color: #cbd5e1; 
  text-decoration: none; 
  font-size: 14px; 
}

.footer-links a:hover { 
  color: #ffffff; 
}

/* Пробиваем любые сторонние стили для копирайта */
.footer .footer-container ~ .footer-bottom,
.footer div.footer-bottom,
.footer-bottom {
  color: #cbd5e1 !important; 
  max-width: var(--max-width);
  margin: 30px auto 0 auto;
  text-align: center;
  font-size: 13px;
  opacity: 1 !important;      
}

/* ==========================================================================
   10. GLOBAL RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 1024px) {
  .main-layout { grid-template-columns: 1fr; gap: 40px; }
  .sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
}

@media (max-width: 768px) {
  body { padding: 0 !important; }
  .badges-container { gap: 20px; }
  
  /* Жесткий фикс адаптивности контейнеров на 15px по краям экрана */
  .main-layout, .main-container, .catalog-container { margin: 20px auto; padding: 0 15px; }
  
  h1 { font-size: 28px; }
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 16px; }
  .catalog-intro h1 { font-size: 28px; }
  .hero-stats { flex-direction: column; gap: 15px; align-items: center; }
  .stat-item { text-align: center; }
  .articles-grid, .catalog-grid { grid-template-columns: 1fr; gap: 20px; }
  
  /* Мобильная адаптация интерфейса контактов */
  .contact-grid { grid-template-columns: 1fr; gap: 20px; }
  
  .author-card { flex-direction: column; align-items: center; text-align: center; padding: 20px; }
  .sidebar { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr; gap: 30px; }
  
  /* Адаптивное мобильное меню */
  .nav-toggle-label { display: block; }
  .nav-toggle-label span, .nav-toggle-label span::before, .nav-toggle-label span::after {
    display: block;
    background: var(--dark-panel);
    height: 2px;
    width: 22px;
    position: relative;
    transition: all 0.2s;
  }
  .nav-toggle-label span::before { content: ''; position: absolute; top: -6px; }
  .nav-toggle-label span::after { content: ''; position: absolute; bottom: -6px; }

  .nav-list {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    padding: 20px;
    gap: 15px;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
  }
  .nav-toggle:checked ~ .nav-list { display: flex; }
  .nav-toggle:checked ~ .nav-toggle-label span { background: transparent; }
  .nav-toggle:checked ~ .nav-toggle-label span::before { transform: rotate(45deg); top: 0; }
  .nav-toggle:checked ~ .nav-toggle-label span::after { transform: rotate(-45deg); bottom: 0; }
}