:root {
  --primary: #2B2D2F;
  --primary-dark: #1a1b1d;
  --accent: #A4D100;
  --accent-dark: #85B800;
  --accent-light: #C5E836;
  --text: #e8eaed;
  --text-muted: #9aa0a6;
  --text-on-dark: #e8e8e8;
  --border: #3d4148;
  --bg: #1f2123;
  --surface: #2b2e33;
  --surface-elevated: #35393f;
  --white: #fff;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --radius: 8px;
  --header-h: 140px;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.5;
  min-height: 100vh;
  position: relative;
}

/* Фоновый логотип — одно изображение на весь экран */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: url('images/background.jpg');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
  background-attachment: fixed;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(31, 33, 35, 0.72) 0%, rgba(31, 33, 35, 0.88) 100%);
}

body > header,
body > main,
body > footer,
body > .modal-overlay,
body > .cookie-bar,
body > .chat-fab {
  position: relative;
  z-index: 1;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-light); text-decoration: underline; }

main a:not(.btn):not(.calc-card):not(.logo) { color: var(--accent); }

.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* TOP BAR */
.top-bar {
  background: #1f2123;
  font-size: 13px;
  border-bottom: 1px solid #3a3d40;
  color: var(--text-on-dark);
}
.top-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px;
  flex-wrap: wrap;
  gap: 8px;
}
.top-bar a { color: var(--text-on-dark); }
.top-bar a:hover { color: var(--accent); }
.top-links { display: flex; gap: 20px; align-items: center; }
.top-contacts { display: flex; gap: 16px; align-items: center; }
.city-btn { cursor: pointer; font-weight: 600; color: var(--accent); }

/* HEADER */
#site-header {
  background: var(--primary);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.site-header {
  background: var(--primary);
}
.header-main {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  flex-wrap: wrap;
}
.logo {
  display: flex;
  align-items: center;
  text-decoration: none !important;
}
.logo-img {
  height: 52px;
  width: auto;
  display: block;
  object-fit: contain;
}
.logo-footer .logo-img {
  height: 44px;
  filter: brightness(1.05);
}
.logo-icon {
  display: none;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none !important;
}
.btn-primary { background: var(--accent); color: #1a1a1a; }
.btn-primary:hover { background: var(--accent-light); color: #1a1a1a; }
.btn-accent { background: var(--accent); color: #1a1a1a; }
.btn-accent:hover { background: var(--accent-light); }
.btn-outline { background: transparent; border: 2px solid var(--accent); color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: #1a1a1a; }
.btn-sm { padding: 8px 16px; font-size: 13px; }

.search-box {
  flex: 1;
  min-width: 200px;
  display: flex;
  max-width: 500px;
}
.search-box input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid #3a3d40;
  border-right: none;
  border-radius: var(--radius) 0 0 var(--radius);
  font-size: 14px;
  background: #1f2123;
  color: var(--text-on-dark);
}
.search-box input::placeholder { color: #888; }
.search-box button {
  padding: 12px 20px;
  background: var(--accent);
  color: #1a1a1a;
  border: none;
  border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer;
}

#site-header .btn-outline {
  border-color: var(--accent);
  color: var(--accent);
}
#site-header .btn-outline:hover {
  background: var(--accent);
  color: #1a1a1a;
}

.header-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.header-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 11px;
  cursor: pointer;
  padding: 4px 8px;
}
.header-action .icon { font-size: 22px; margin-bottom: 2px; }
#site-header .header-action { color: var(--text-on-dark); }
#site-header .header-action:hover { color: var(--accent); }

.nav-categories {
  display: flex;
  gap: 24px;
  padding: 12px 0 14px;
  border-top: 1px solid #3a3d40;
  overflow-x: auto;
}
.nav-categories a {
  color: var(--text-on-dark);
  font-size: 14px;
  white-space: nowrap;
  font-weight: 500;
  text-decoration: none;
}
.nav-categories a:hover { color: var(--accent); text-decoration: none; }

/* BREADCRUMBS */
.breadcrumbs {
  padding: 16px 0;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs span { margin: 0 8px; color: var(--text-muted); }

/* PAGE TITLE */
.page-title { font-size: 32px; font-weight: 700; margin-bottom: 24px; color: var(--white); }

/* CALCULATOR GRID */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.calc-card {
  position: relative;
  height: 220px;
  border-radius: var(--radius);
  overflow: hidden;
  display: block;
  text-decoration: none !important;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid var(--border);
}
.calc-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  border-color: rgba(164, 209, 0, 0.4);
}
.calc-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.3s;
}
.calc-card:hover .calc-card-bg { transform: scale(1.05); }
.calc-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 60%);
}
.calc-card-title {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  color: white;
  font-size: 20px;
  font-weight: 700;
  z-index: 1;
}
.calc-card.featured { grid-row: span 2; height: auto; min-height: 460px; }

/* CALCULATOR PAGE */
.calc-page {
  background: rgba(43, 46, 51, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  margin-bottom: 40px;
  color: var(--text);
}
.location-banner {
  background: rgba(164, 209, 0, 0.1);
  border-left: 4px solid var(--accent);
  padding: 12px 20px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--text-on-dark);
}
.location-banner a { color: var(--accent); }
.calc-section { margin-bottom: 32px; }
.calc-section h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
}
.tile-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.tile {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
  background: var(--surface-elevated);
  color: var(--text);
  min-width: 100px;
}
.tile:hover { border-color: var(--accent); }
.tile.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.tile img, .tile .tile-icon {
  width: 80px;
  height: 60px;
  object-fit: contain;
  margin-bottom: 8px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}
.tile-label { font-size: 13px; font-weight: 600; }

.color-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.color-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid transparent;
  transition: all 0.2s;
}
.color-circle.active, .color-circle:hover {
  border-color: var(--accent);
  transform: scale(1.1);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-muted);
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--primary-dark);
  color: var(--text);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-control-area,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--primary-dark);
  color: var(--text);
  font-family: inherit;
  resize: vertical;
}

.calc-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 24px 0;
}
@media (max-width: 768px) {
  .calc-preview { grid-template-columns: 1fr; }
}
.preview-image {
  background: var(--primary-dark);
  border-radius: var(--radius);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border);
}
.preview-image img { width: 100%; height: 100%; object-fit: cover; }

.calc-result {
  background: rgba(26, 27, 29, 0.75);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 24px;
}
.calc-result h4 { margin-bottom: 16px; font-size: 18px; color: var(--white); }
.total-price {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  margin: 16px 0;
}
.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 16px 0;
}
.result-table th, .result-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.result-table th { background: rgba(164, 209, 0, 0.12); font-weight: 600; color: var(--accent); }
.result-table th, .result-table td { color: var(--text); }
.result-table .num { text-align: right; }

.calc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.resume-calc {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.resume-calc input {
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  width: 200px;
  background: var(--primary-dark);
  color: var(--text);
}

/* STEPS */
.steps { display: flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap; }
.step-indicator {
  padding: 8px 16px;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}
.step-indicator.active { background: var(--accent); color: #1a1a1a; border-color: var(--accent); }
.step-indicator.done { background: var(--accent); color: #1a1a1a; }

/* FOOTER */
.site-footer {
  background: var(--primary);
  color: var(--text-on-dark);
  margin-top: 60px;
  padding: 40px 0 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}
.footer-grid h4 { color: white; margin-bottom: 12px; font-size: 14px; }
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { color: #bdc3c7; font-size: 13px; }
.footer-grid a:hover { color: var(--accent); }
.footer-contact { font-size: 13px; line-height: 1.7; opacity: 0.9; }
.footer-bottom {
  border-top: 1px solid #3a3d40;
  padding-top: 20px;
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* MODAL */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.modal-overlay.show { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  max-width: 440px;
  width: 90%;
  text-align: center;
  color: var(--text);
}
.modal h3 { margin-bottom: 16px; color: var(--white); }
.modal-actions { display: flex; gap: 12px; justify-content: center; margin-top: 20px; }

/* COOKIE */
.cookie-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(43, 46, 51, 0.97);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  z-index: 9998;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text);
}
.cookie-bar.hidden { display: none; }

/* CHAT */
.chat-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: var(--accent);
  color: #1a1a1a;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  cursor: pointer;
  box-shadow: var(--shadow);
  z-index: 10001;
  border: none;
}

/* VISUALIZER LINK CARD */
.visualizer-hero {
  background: linear-gradient(135deg, rgba(43, 46, 51, 0.95) 0%, rgba(26, 27, 29, 0.98) 100%);
  color: white;
  padding: 40px;
  border-radius: var(--radius);
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  border: 1px solid rgba(164, 209, 0, 0.25);
  box-shadow: var(--shadow);
}
.visualizer-hero .btn-accent { font-size: 16px; padding: 16px 32px; }
.visualizer-hero h2 { font-size: 28px; margin-bottom: 8px; }
.visualizer-hero p { opacity: 0.9; max-width: 500px; }

.hidden { display: none !important; }

/* CONTACTS */
.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
@media (max-width: 768px) { .contacts-grid { grid-template-columns: 1fr; } }
.contact-card {
  background: var(--surface-elevated);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
}
.contact-card h3 { font-size: 16px; margin-bottom: 12px; color: var(--accent); }
.hours-table { width: 100%; font-size: 14px; border-collapse: collapse; }
.hours-table td { padding: 8px 0; border-bottom: 1px solid var(--border); color: var(--text); }
.hours-table td:last-child { text-align: right; font-weight: 600; color: var(--accent); }