/* Дизайн-токены */
:root {
  --bg-primary: #0B0B0F;
  --bg-surface: #16161F;
  --bg-elevated: #1E1E2E;
  
  --accent-orange: #FF6B2B;
  --accent-light: #FF8C55;
  --accent-dark: #E55A1F;
  
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.75);
  --text-muted: rgba(255, 255, 255, 0.45);
  
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.10);
  --border-accent: rgba(255, 107, 43, 0.35);
  
  --success: #22C55E;
  --warning: #F59E0B;
  --error: #EF4444;
  
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Manrope', sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-secondary);
  background: var(--bg-primary);
  background-image: 
    radial-gradient(at 0% 0%, rgba(255, 107, 43, 0.05) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(255, 107, 43, 0.03) 0px, transparent 50%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Типографика */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-primary);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 6vw, 3.75rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 3vw, 1.75rem); }

.accent {
  color: var(--accent-orange);
}

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

section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-top: -32px;
  margin-bottom: 48px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  gap: 16px;
  position: relative;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 10px rgba(255, 107, 43, 0.3);
  transition: var(--transition);
  display: block;
}

.logo {
  text-decoration: none;
  transition: var(--transition);
}

.logo:hover .logo-text {
  transform: scale(1.05);
  filter: brightness(1.2);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-menu a:hover {
  color: var(--accent-orange);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.btn-phone {
  color: var(--accent-orange);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .nav {
    padding: 12px 16px;
  }
  
  .logo-text {
    font-size: 1.25rem;
  }
  
  .btn-phone {
    font-size: 0.85rem;
  }
  
  .nav-toggle {
    display: flex;
    order: 2;
    z-index: 1001;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-primary);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 24px;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    z-index: 1000;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu a {
    font-size: 1.125rem;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
  }
  
  /* Таблицы на мобильных */
  .materials-table {
    margin: 0 -16px 32px;
    padding: 0 16px;
    position: relative;
  }
  
  .materials-table::after {
    content: '→ Прокрутите';
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-orange);
    font-size: 0.875rem;
    opacity: 0.7;
    pointer-events: none;
    animation: slideHint 2s ease-in-out infinite;
  }
  
  @keyframes slideHint {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50% { transform: translateY(-50%) translateX(8px); }
  }
  
  table {
    font-size: 0.875rem;
  }
  
  th, td {
    padding: 12px 8px;
    white-space: nowrap;
  }
  
  th {
    font-size: 0.8125rem;
  }
  
  /* Улучшения для карточек */
  .service-card,
  .advantage,
  .contact-card {
    padding: 24px;
  }
  
  .service-icon,
  .advantage-icon {
    font-size: 2.5rem;
  }
  
  /* Формы */
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .calculator-wrapper {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  /* Сетки */
  .services-grid,
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  /* Контейнер */
  .container {
    padding: 0 16px;
  }
  
  section {
    padding: 48px 0;
  }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  color: white;
  box-shadow: 0 4px 20px rgba(255, 107, 43, 0.4);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255, 107, 43, 0.5);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-secondary {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 2px solid var(--accent-orange);
}

.btn-secondary:hover {
  background: var(--bg-surface);
  border-color: var(--accent-light);
  transform: translateY(-3px);
  box-shadow: 0 4px 20px rgba(255, 107, 43, 0.3);
}

/* Hero */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 107, 43, 0.03) 0%, transparent 50%);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 107, 43, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(80px);
  animation: float 20s ease-in-out infinite;
  pointer-events: none;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-50px, 50px); }
}

.hero-content {
  max-width: 900px;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: white;
  text-shadow: 
    -2px -2px 0 rgba(0, 0, 0, 0.5),
    2px -2px 0 rgba(0, 0, 0, 0.5),
    -2px 2px 0 rgba(0, 0, 0, 0.5),
    2px 2px 0 rgba(0, 0, 0, 0.5),
    -1px -1px 0 rgba(0, 0, 0, 0.5),
    1px -1px 0 rgba(0, 0, 0, 0.5),
    -1px 1px 0 rgba(0, 0, 0, 0.5),
    1px 1px 0 rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: white;
  text-shadow: 
    -2px -2px 0 rgba(0, 0, 0, 0.4),
    2px -2px 0 rgba(0, 0, 0, 0.4),
    -2px 2px 0 rgba(0, 0, 0, 0.4),
    2px 2px 0 rgba(0, 0, 0, 0.4),
    -1px -1px 0 rgba(0, 0, 0, 0.4),
    1px -1px 0 rgba(0, 0, 0, 0.4),
    -1px 1px 0 rgba(0, 0, 0, 0.4),
    1px 1px 0 rgba(0, 0, 0, 0.4);
  margin-bottom: 36px;
  line-height: 1.6;
  max-width: 700px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 40px;
  max-width: 700px;
}

.stat {
  text-align: left;
}

.stat-value {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  color: white;
  text-shadow: 
    -2px -2px 0 rgba(0, 0, 0, 0.5),
    2px -2px 0 rgba(0, 0, 0, 0.5),
    -2px 2px 0 rgba(0, 0, 0, 0.5),
    2px 2px 0 rgba(0, 0, 0, 0.5),
    -1px -1px 0 rgba(0, 0, 0, 0.5),
    1px -1px 0 rgba(0, 0, 0, 0.5),
    -1px 1px 0 rgba(0, 0, 0, 0.5),
    1px 1px 0 rgba(0, 0, 0, 0.5);
  font-family: var(--font-display);
  line-height: 1.2;
  margin-bottom: 8px;
  display: block;
}

.stat-label {
  color: white;
  text-shadow: 
    -1px -1px 0 rgba(0, 0, 0, 0.4),
    1px -1px 0 rgba(0, 0, 0, 0.4),
    -1px 1px 0 rgba(0, 0, 0, 0.4),
    1px 1px 0 rgba(0, 0, 0, 0.4);
  font-size: 0.9rem;
  line-height: 1.4;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.service-card {
  display: block;
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  color: var(--text-primary);
  cursor: pointer;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 107, 43, 0.1) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s;
}

.service-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: var(--accent-orange);
  box-shadow: 0 20px 60px rgba(255, 107, 43, 0.3), 0 0 40px rgba(255, 107, 43, 0.1);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.service-card h3 {
  margin-bottom: 12px;
}

.service-link {
  display: inline-block;
  margin-top: 16px;
  color: var(--accent-orange);
  text-decoration: none;
  font-weight: 600;
}

/* Advantages */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.advantage {
  text-align: center;
}

.advantage-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.advantage h3 {
  margin-bottom: 12px;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.step {
  text-align: center;
}

.step-number {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
}

.step h3 {
  margin-bottom: 12px;
}

/* Materials Table */
.materials-table {
  overflow-x: auto;
  margin-bottom: 32px;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
}

table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

thead {
  background: var(--bg-elevated);
}

th, td {
  padding: 16px;
  text-align: left;
}

th {
  color: var(--text-primary);
  font-weight: 600;
}

tbody tr {
  border-top: 1px solid var(--border-subtle);
}

tbody tr:hover {
  background: rgba(255, 107, 43, 0.05);
}

.materials-cta {
  text-align: center;
}

/* Form */
.form {
  max-width: 600px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

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

label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-primary);
  font-weight: 500;
}

input, textarea, select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-base);
  font-size: 1rem;
  transition: var(--transition);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 43, 0.1);
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.checkbox input {
  width: auto;
}

/* Footer */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 48px;
  margin-bottom: 48px;
}

.footer h3, .footer h4 {
  margin-bottom: 16px;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 8px;
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.footer a:hover {
  color: var(--accent-orange);
}

.footer-bottom {
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

/* AI Chat Widget */
.ai-chat-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
}

.chat-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  border: none;
  color: white;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: var(--transition);
}

.chat-toggle:hover {
  transform: scale(1.1);
}

.status-dot {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 12px;
  height: 12px;
  background: var(--success);
  border-radius: 50%;
  border: 2px solid white;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.chat-window {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 360px;
  height: 600px;
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-default);
  flex-direction: column;
}

.chat-window.active {
  display: flex;
}

.chat-header {
  padding: 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-title h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.status {
  font-size: 0.875rem;
  color: var(--success);
}

.chat-controls {
  display: flex;
  gap: 8px;
}

.chat-minimize, .chat-close {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  transition: var(--transition);
}

.chat-minimize:hover, .chat-close:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

.chat-welcome {
  text-align: center;
}

.quick-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.quick-btn {
  padding: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}

.quick-btn:hover {
  background: var(--bg-primary);
  border-color: var(--border-accent);
}

.chat-footer {
  padding: 16px;
  border-top: 1px solid var(--border-subtle);
}

.chat-form {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.chat-form input {
  flex: 1;
  margin: 0;
}

.chat-form button {
  width: 40px;
  height: 40px;
  background: var(--accent-orange);
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  cursor: pointer;
  transition: var(--transition);
}

.chat-form button:hover {
  background: var(--accent-light);
}

.chat-info {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    min-height: 100vh;
    padding: 80px 0 60px;
  }
  
  .hero-title {
    font-size: clamp(2rem, 10vw, 3rem);
  }
  
  .hero-subtitle {
    font-size: 1.125rem;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .btn {
    width: 100%;
    text-align: center;
  }
  
  .page-hero {
    min-height: 50vh;
    padding: 100px 0 50px;
  }
  
  .chat-window {
    width: 100%;
    height: 100%;
    bottom: 0;
    right: 0;
    border-radius: 0;
  }
  
  section {
    padding: 48px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* Page Hero */
.page-hero {
  padding: 120px 0 70px;
  text-align: center;
  background: linear-gradient(135deg, rgba(255, 107, 43, 0.05) 0%, transparent 50%);
  position: relative;
  min-height: 40vh;
  display: flex;
  align-items: center;
}

.page-hero .container {
  width: 100%;
}

.page-hero h1 {
  margin-bottom: 20px;
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.2;
}

.lead {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Services Detailed */
.services-detailed {
  padding: 80px 0;
}

.services-grid-large {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.service-card-large {
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card-large::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 107, 43, 0.08) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s;
}

.service-card-large:hover {
  transform: translateY(-8px);
  border-color: var(--accent-orange);
  box-shadow: 0 20px 60px rgba(255, 107, 43, 0.25);
}

.service-card-large:hover::before {
  opacity: 1;
}

.service-image {
  font-size: 4rem;
  margin-bottom: 24px;
  display: inline-block;
  filter: drop-shadow(0 0 20px rgba(255, 107, 43, 0.3));
}

.service-card-large h2 {
  font-size: 1.75rem;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.service-card-large > p {
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.service-features {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.feature {
  padding: 12px 16px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  font-size: 0.9rem;
}

.feature strong {
  color: var(--accent-orange);
  margin-right: 8px;
}

.service-card-large .btn {
  position: relative;
  z-index: 1;
  width: 100%;
}

/* CTA Section */
.cta-section {
  padding: 80px 0;
}

.cta-box {
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
  padding: 60px 40px;
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--border-accent);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 107, 43, 0.1) 0%, transparent 70%);
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.cta-box h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-box p {
  font-size: 1.25rem;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* Contacts */
.contacts-content {
  padding: 80px 0;
}

.contacts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 48px;
}

.contact-info {
  display: grid;
  gap: 24px;
}

.contact-card {
  background: var(--bg-surface);
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  text-align: center;
  transition: all 0.3s;
}

.contact-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(255, 107, 43, 0.15);
}

.contact-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 10px rgba(255, 107, 43, 0.3));
}

.contact-card h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.contact-link {
  display: block;
  color: var(--accent-orange);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
  text-decoration: none;
}

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

.contact-form-wrapper {
  background: var(--bg-surface);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
}

.contact-form-wrapper h2 {
  margin-bottom: 12px;
}

.contact-form-wrapper > p {
  color: var(--text-muted);
  margin-bottom: 32px;
}

.btn-block {
  width: 100%;
}

/* Улучшенные формы */
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 43, 0.15);
  background: var(--bg-elevated);
}

/* Улучшенная таблица */
table {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

tbody tr:hover {
  background: rgba(255, 107, 43, 0.08);
  transform: scale(1.01);
  transition: all 0.2s;
}

/* Улучшенный footer */
.footer {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-surface) 100%);
  border-top: 1px solid var(--border-accent);
}

/* Плавные переходы для всех интерактивных элементов */
a, button, .card, .service-card, .advantage, .step {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Улучшенные тени для карточек */
.service-card, .advantage, .step, .contact-card {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.service-card:hover, .contact-card:hover {
  box-shadow: 0 12px 40px rgba(255, 107, 43, 0.25);
}

/* Градиентный текст для акцентов */
.gradient-text {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Улучшенная анимация для иконок */
.service-icon, .advantage-icon, .contact-icon {
  transition: all 0.3s;
}

.service-card:hover .service-icon,
.advantage:hover .advantage-icon,
.contact-card:hover .contact-icon {
  transform: scale(1.1) rotate(5deg);
  filter: drop-shadow(0 0 20px rgba(255, 107, 43, 0.5));
}

/* Responsive улучшения */
@media (max-width: 768px) {
  .contacts-grid {
    grid-template-columns: 1fr;
  }
  
  .services-grid-large {
    grid-template-columns: 1fr;
  }
  
  .cta-box {
    padding: 40px 24px;
  }
  
  .contact-form-wrapper {
    padding: 24px;
  }
}

/* Calculator */
.calculator-section {
  padding: 80px 0;
}

.calculator-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.calculator-form {
  background: var(--bg-surface);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
}

.calc-input, .calc-slider {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-base);
  font-size: 1rem;
  transition: var(--transition);
}

.calc-slider {
  padding: 0;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-elevated);
  outline: none;
  border-radius: 4px;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  cursor: pointer;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(255, 107, 43, 0.4);
}

.calc-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  cursor: pointer;
  border-radius: 50%;
  border: none;
  box-shadow: 0 2px 8px rgba(255, 107, 43, 0.4);
}

.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.radio-label:hover {
  border-color: var(--border-accent);
  background: var(--bg-primary);
}

.radio-label input[type="radio"] {
  width: 20px;
  height: 20px;
  accent-color: var(--accent-orange);
}

.calculator-result {
  background: var(--bg-surface);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.result-placeholder {
  text-align: center;
  color: var(--text-muted);
}

.result-icon {
  font-size: 4rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.result-content {
  width: 100%;
  opacity: 0;
  animation: fadeIn 0.5s forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

.result-header h3 {
  margin-bottom: 24px;
  text-align: center;
}

.result-breakdown {
  background: var(--bg-elevated);
  padding: 24px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}

.breakdown-item {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.breakdown-item:last-child {
  border-bottom: none;
}

.result-total {
  background: linear-gradient(135deg, rgba(255, 107, 43, 0.1) 0%, rgba(255, 107, 43, 0.05) 100%);
  padding: 24px;
  border-radius: var(--radius-md);
  text-align: center;
  margin-bottom: 24px;
  border: 1px solid var(--border-accent);
}

.result-total span {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.total-price {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-display);
}

.result-note {
  background: var(--bg-elevated);
  padding: 16px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-orange);
  margin-bottom: 24px;
}

.result-note p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

.result-error {
  text-align: center;
}

.error-icon {
  font-size: 4rem;
  margin-bottom: 16px;
}

.calculator-note {
  background: var(--bg-surface);
  padding: 24px;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-orange);
}

.calculator-note p {
  margin: 0;
  color: var(--text-muted);
}

@media (max-width: 968px) {
  .calculator-wrapper {
    grid-template-columns: 1fr;
  }
  
  .calculator-result {
    min-height: 300px;
  }
}

/* Portfolio */
.portfolio-section {
  padding: 80px 0;
}

.portfolio-filters, .blog-filters {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 12px 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 500;
}

.filter-btn:hover {
  border-color: var(--border-accent);
  color: var(--text-primary);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  border-color: var(--accent-orange);
  color: white;
  box-shadow: 0 4px 16px rgba(255, 107, 43, 0.3);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 32px;
}

.portfolio-item {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-default);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 1;
}

.portfolio-item:hover {
  transform: translateY(-8px);
  border-color: var(--accent-orange);
  box-shadow: 0 16px 48px rgba(255, 107, 43, 0.25);
}

.portfolio-image {
  width: 100%;
  height: 240px;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.portfolio-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 107, 43, 0.1) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s;
}

.portfolio-item:hover .portfolio-image::before {
  opacity: 1;
}

.portfolio-placeholder {
  font-size: 5rem;
  opacity: 0.3;
  filter: drop-shadow(0 0 20px rgba(255, 107, 43, 0.3));
}

.portfolio-info {
  padding: 24px;
}

.portfolio-info h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.portfolio-info p {
  color: var(--text-muted);
  margin-bottom: 16px;
}

.portfolio-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  padding: 4px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  font-size: 0.875rem;
  color: var(--accent-orange);
}

/* Blog */
.blog-section {
  padding: 80px 0;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 32px;
}

.blog-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-default);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 1;
}

.blog-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-orange);
  box-shadow: 0 16px 48px rgba(255, 107, 43, 0.25);
}

.blog-image {
  width: 100%;
  height: 200px;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.blog-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-placeholder {
  font-size: 4rem;
  opacity: 0.3;
}

.blog-content {
  padding: 24px;
}

.blog-meta {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
  font-size: 0.875rem;
}

.blog-category {
  color: var(--accent-orange);
  font-weight: 600;
}

.blog-date {
  color: var(--text-muted);
}

.blog-content h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.blog-content h3 a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s;
}

.blog-content h3 a:hover {
  color: var(--accent-orange);
}

.blog-content p {
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

.blog-link {
  color: var(--accent-orange);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.3s;
}

.blog-link:hover {
  gap: 8px;
}

.blog-empty {
  text-align: center;
  padding: 80px 20px;
}

.empty-icon {
  font-size: 6rem;
  margin-bottom: 24px;
  opacity: 0.3;
}

.blog-empty h3 {
  margin-bottom: 16px;
}

.blog-preview {
  max-width: 600px;
  margin: 48px auto 0;
  text-align: left;
  background: var(--bg-surface);
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
}

.blog-preview h4 {
  margin-bottom: 16px;
  color: var(--accent-orange);
}

.blog-preview ul {
  list-style: none;
  padding: 0;
}

.blog-preview li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.blog-preview li:last-child {
  border-bottom: none;
}

.blog-preview li::before {
  content: '→';
  color: var(--accent-orange);
  margin-right: 12px;
  font-weight: bold;
}

/* Blog Post */
.blog-post {
  padding: 80px 0;
}

.post-header {
  max-width: 800px;
  margin: 0 auto 48px;
  text-align: center;
}

.breadcrumbs {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

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

.breadcrumbs a:hover {
  text-decoration: underline;
}

.post-meta {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.meta-item svg {
  opacity: 0.5;
}

.post-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-surface);
  padding: 48px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  line-height: 1.8;
}

.post-content h2 {
  margin-top: 48px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-accent);
}

.post-content h3 {
  margin-top: 32px;
  margin-bottom: 16px;
}

.post-content p {
  margin-bottom: 24px;
}

.post-content ul, .post-content ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.post-content li {
  margin-bottom: 8px;
}

.post-content code {
  background: var(--bg-elevated);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent-orange);
}

.post-content pre {
  background: var(--bg-elevated);
  padding: 24px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: 24px;
}

.post-footer {
  max-width: 800px;
  margin: 48px auto 0;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
}

.post-tags {
  margin-bottom: 24px;
}

.post-tags strong {
  color: var(--text-primary);
  margin-right: 12px;
}

.post-share {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.post-share strong {
  color: var(--text-primary);
}

.share-btn {
  padding: 8px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s;
  font-size: 0.875rem;
}

.share-btn:hover {
  background: var(--bg-elevated);
  border-color: var(--accent-orange);
  color: var(--accent-orange);
}

.related-posts {
  padding: 80px 0;
  background: var(--bg-surface);
}

.related-posts h2 {
  text-align: center;
  margin-bottom: 48px;
}

@media (max-width: 768px) {
  .portfolio-grid, .blog-grid {
    grid-template-columns: 1fr;
  }
  
  .post-content {
    padding: 24px;
  }
  
  .portfolio-filters, .blog-filters {
    flex-direction: column;
  }
  
  .filter-btn {
    width: 100%;
  }
}

/* Materials */
.materials-section {
  padding: 80px 0;
}

.materials-tabs {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 48px;
}

.tab-btn {
  padding: 14px 32px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 600;
  font-size: 1rem;
}

.tab-btn:hover {
  border-color: var(--border-accent);
  color: var(--text-primary);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  border-color: var(--accent-orange);
  color: white;
  box-shadow: 0 4px 16px rgba(255, 107, 43, 0.3);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.5s;
}

.tab-content h2 {
  text-align: center;
  margin-bottom: 48px;
}

.material-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  margin-bottom: 24px;
  overflow: hidden;
  transition: all 0.3s;
}

.material-card:hover {
  border-color: var(--accent-orange);
  box-shadow: 0 8px 32px rgba(255, 107, 43, 0.2);
  transform: translateX(8px);
}

.material-header {
  background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-surface) 100%);
  padding: 24px 32px;
  border-bottom: 1px solid var(--border-subtle);
}

.material-header h3 {
  font-size: 1.5rem;
  margin: 0;
}

.material-body {
  padding: 32px;
}

.material-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
  padding: 20px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.spec {
  text-align: center;
}

.spec strong {
  display: block;
  color: var(--accent-orange);
  margin-bottom: 8px;
  font-size: 0.875rem;
}

.material-body p {
  line-height: 1.8;
  color: var(--text-secondary);
}

.materials-note {
  padding: 40px 0 80px;
}

.note-box {
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
  padding: 40px;
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--accent-orange);
}

.note-box h3 {
  margin-bottom: 24px;
  color: var(--accent-orange);
}

.note-box ul {
  list-style: none;
  padding: 0;
}

.note-box li {
  padding: 12px 0;
  padding-left: 32px;
  position: relative;
  color: var(--text-secondary);
  line-height: 1.6;
}

.note-box li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-orange);
  font-weight: bold;
  font-size: 1.2rem;
}

@media (max-width: 768px) {
  .materials-tabs {
    flex-direction: column;
  }
  
  .tab-btn {
    width: 100%;
  }
  
  .material-header {
    padding: 20px;
  }
  
  .material-body {
    padding: 20px;
  }
  
  .material-specs {
    grid-template-columns: 1fr;
  }
  
  .note-box {
    padding: 24px;
  }
}

/* FAQ Page */
.faq-section {
  padding: 80px 0;
}

.faq-categories {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.faq-category-btn {
  padding: 10px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 500;
  font-size: 0.9rem;
}

.faq-category-btn:hover {
  border-color: var(--border-accent);
  color: var(--text-primary);
}

.faq-category-btn.active {
  background: var(--accent-orange);
  border-color: var(--accent-orange);
  color: white;
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  overflow: hidden;
  transition: all 0.3s;
}

.faq-item:hover {
  border-color: var(--border-accent);
}

.faq-item.active {
  border-color: var(--accent-orange);
  box-shadow: 0 4px 16px rgba(255, 107, 43, 0.2);
}

.faq-question {
  width: 100%;
  padding: 24px 28px;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  text-align: left;
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 600;
  transition: all 0.3s;
}

.faq-question:hover {
  color: var(--accent-orange);
}

.faq-icon {
  font-size: 1.5rem;
  color: var(--accent-orange);
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
  max-height: 1000px;
  transition: max-height 0.5s ease-in;
}

.faq-answer > * {
  padding: 0 28px 24px;
}

.faq-answer p {
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer ul, .faq-answer ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.faq-answer li {
  margin-bottom: 8px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.faq-answer a {
  color: var(--accent-orange);
  text-decoration: none;
}

.faq-answer a:hover {
  text-decoration: underline;
}

.faq-answer strong {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .faq-categories {
    flex-direction: column;
  }
  
  .faq-category-btn {
    width: 100%;
  }
  
  .faq-question {
    padding: 20px;
    font-size: 1rem;
  }
  
  .faq-answer > * {
    padding: 0 20px 20px;
  }
}

/* Service Detail Pages */
.service-detail {
  padding: 80px 0;
}

.service-intro {
  max-width: 900px;
  margin: 0 auto 48px;
  text-align: center;
}

.intro-text {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.service-grid {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 48px;
}

.service-content h2 {
  margin-top: 48px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-accent);
}

.service-content h2:first-child {
  margin-top: 0;
}

.material-specs-table {
  margin-bottom: 48px;
  overflow-x: auto;
}

.tech-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.spec-card {
  background: var(--bg-surface);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  text-align: center;
  transition: all 0.3s;
}

.spec-card:hover {
  border-color: var(--accent-orange);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(255, 107, 43, 0.2);
}

.spec-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 10px rgba(255, 107, 43, 0.3));
}

.spec-card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.spec-card p {
  color: var(--accent-orange);
  font-weight: 600;
  font-size: 1.125rem;
}

.advantages-list {
  list-style: none;
  padding: 0;
  margin-bottom: 48px;
}

.advantages-list li {
  padding: 16px 0;
  padding-left: 32px;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
  line-height: 1.6;
}

.advantages-list li:last-child {
  border-bottom: none;
}

.advantages-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-orange);
  font-weight: bold;
  font-size: 1.5rem;
}

.applications {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.app-item {
  background: var(--bg-surface);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  transition: all 0.3s;
}

.app-item:hover {
  border-color: var(--accent-orange);
  transform: translateY(-4px);
}

.app-item h4 {
  margin-bottom: 12px;
  font-size: 1.125rem;
}

.app-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.process-steps {
  margin-bottom: 48px;
}

.process-step {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
  align-items: flex-start;
}

.step-num {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
}

.step-content h4 {
  margin-bottom: 8px;
}

.step-content p {
  color: var(--text-muted);
  line-height: 1.6;
}

/* Service Sidebar */
.service-sidebar {
  position: sticky;
  top: 100px;
  align-self: flex-start;
}

.sidebar-card {
  background: var(--bg-surface);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  margin-bottom: 24px;
}

.sidebar-card h3 {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

.sidebar-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
  line-height: 1.6;
}

.sidebar-card p:last-child {
  margin-bottom: 0;
}

.sidebar-links {
  list-style: none;
  padding: 0;
}

.sidebar-links li {
  margin-bottom: 8px;
}

.sidebar-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s;
}

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

/* Service FAQ */
.service-faq {
  padding: 80px 0;
  background: var(--bg-surface);
}

.service-faq h2 {
  text-align: center;
  margin-bottom: 48px;
}

.faq-compact {
  max-width: 900px;
  margin: 0 auto;
}

.faq-more {
  text-align: center;
  margin-top: 32px;
}

.faq-more a {
  color: var(--accent-orange);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.125rem;
}

.faq-more a:hover {
  text-decoration: underline;
}

@media (max-width: 1024px) {
  .service-grid {
    grid-template-columns: 1fr;
  }
  
  .service-sidebar {
    position: static;
  }
  
  .tech-specs {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}

@media (max-width: 768px) {
  .applications {
    grid-template-columns: 1fr;
  }
  
  .process-step {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* Location Map */
.location-map {
  padding: 80px 0;
  background: var(--bg-surface);
}

.location-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}

.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-default);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  min-height: 400px;
}

.location-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
  justify-content: center;
}

.location-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg-elevated);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  transition: all 0.3s;
}

.location-item:hover {
  border-color: var(--accent-orange);
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(255, 107, 43, 0.2);
}

.location-icon {
  font-size: 2rem;
  filter: drop-shadow(0 0 10px rgba(255, 107, 43, 0.3));
  flex-shrink: 0;
}

.location-item h4 {
  margin-bottom: 4px;
  font-size: 1rem;
}

.location-item p {
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .location-grid {
    grid-template-columns: 1fr;
  }
  
  .map-container {
    min-height: 300px;
  }
}


/* Breadcrumbs */
.breadcrumbs {
  padding: 16px 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.875rem;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
}

.breadcrumbs li:not(:last-child)::after {
  content: '›';
  margin-left: 8px;
  color: var(--text-muted);
}

.breadcrumbs a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.breadcrumbs a:hover {
  color: var(--accent-orange);
}

.breadcrumbs li[aria-current="page"] {
  color: var(--text-primary);
  font-weight: 500;
}


/* Reviews Section */
.reviews {
  padding: 80px 0;
  background: var(--bg-surface);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  margin-bottom: 48px;
}

.review-card {
  background: var(--bg-primary);
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  transition: all 0.3s;
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(255, 107, 43, 0.15);
  border-color: var(--accent-orange);
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.review-author {
  display: flex;
  gap: 16px;
  align-items: center;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  flex-shrink: 0;
}

.author-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.author-name {
  font-weight: 600;
  color: var(--text-primary);
}

.author-company {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.review-rating {
  color: #FFB800;
  font-size: 1.125rem;
  letter-spacing: 2px;
}

.review-text {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.review-date {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.reviews-cta {
  text-align: center;
}

@media (max-width: 768px) {
  .reviews {
    padding: 48px 0;
  }
  
  .reviews-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .review-card {
    padding: 24px;
  }
}

/* Review Form Page */
.review-form-section {
  padding: 80px 0;
}

.review-form-intro {
  max-width: 700px;
  margin: 0 auto 40px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.6;
}

.review-form {
  max-width: 700px;
  margin: 0 auto;
  background: var(--bg-surface);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
}

.rating-input {
  display: flex;
  flex-direction: row-reverse;
  justify-content: flex-end;
  gap: 8px;
  font-size: 2rem;
}

.rating-input input[type="radio"] {
  display: none;
}

.rating-input label {
  cursor: pointer;
  color: var(--border-default);
  transition: color 0.2s;
}

.rating-input label:hover,
.rating-input label:hover ~ label,
.rating-input input[type="radio"]:checked ~ label {
  color: #FFB800;
}

.existing-reviews {
  padding: 80px 0;
  background: var(--bg-surface);
}

@media (max-width: 768px) {
  .review-form-section {
    padding: 48px 0;
  }
  
  .review-form {
    padding: 24px;
  }
  
  .rating-input {
    font-size: 1.5rem;
  }
}

/* Calculator Page */
.calculator-section {
  padding: 80px 0;
}

.calculator-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.calculator-form {
  background: var(--bg-surface);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
}

.calc-input, .calc-slider {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-base);
  font-size: 1rem;
  transition: var(--transition);
}

.calc-input:focus {
  outline: none;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 43, 0.15);
  background: var(--bg-primary);
}

.calc-slider {
  padding: 0;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-elevated);
  outline: none;
  border-radius: 4px;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  cursor: pointer;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(255, 107, 43, 0.4);
}

.calc-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  cursor: pointer;
  border-radius: 50%;
  border: none;
  box-shadow: 0 2px 8px rgba(255, 107, 43, 0.4);
}

.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.radio-label:hover {
  border-color: var(--border-accent);
  background: var(--bg-primary);
}

.radio-label input[type="radio"] {
  width: 20px;
  height: 20px;
  accent-color: var(--accent-orange);
}

.calculator-result {
  background: var(--bg-surface);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.result-placeholder {
  text-align: center;
  color: var(--text-muted);
}

.result-icon {
  font-size: 4rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.result-content {
  width: 100%;
  opacity: 0;
  animation: fadeIn 0.5s forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

.result-header h3 {
  margin-bottom: 24px;
  text-align: center;
}

.result-details {
  background: var(--bg-elevated);
  padding: 24px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}

.result-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.result-row:last-child {
  border-bottom: none;
}

.result-row.highlight {
  background: rgba(255, 107, 43, 0.1);
  padding: 12px;
  border-radius: var(--radius-sm);
  margin: 8px 0;
  border: 1px solid var(--border-accent);
  color: var(--accent-orange);
  font-weight: 600;
}

.result-total {
  background: linear-gradient(135deg, rgba(255, 107, 43, 0.1) 0%, rgba(255, 107, 43, 0.05) 100%);
  padding: 24px;
  border-radius: var(--radius-md);
  text-align: center;
  margin-bottom: 24px;
  border: 1px solid var(--border-accent);
}

.result-total span {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.result-total strong {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-display);
}

.result-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.result-note {
  background: var(--bg-elevated);
  padding: 16px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-orange);
}

.result-note small {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.result-error {
  text-align: center;
  color: var(--error);
}

.error-icon {
  font-size: 4rem;
  margin-bottom: 16px;
}

.calculator-note {
  background: var(--bg-surface);
  padding: 24px;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-orange);
}

.calculator-note p {
  margin: 0;
  color: var(--text-muted);
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.checkbox-label:hover {
  border-color: var(--border-accent);
  background: var(--bg-primary);
}

.checkbox-label input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--accent-orange);
}

@media (max-width: 968px) {
  .calculator-wrapper {
    grid-template-columns: 1fr;
  }
  
  .calculator-result {
    min-height: 300px;
  }
  
  .result-total strong {
    font-size: 2rem;
  }
}

/* Price List Section */
.price-list-section {
  padding: 80px 0;
  background: var(--bg-surface);
}

.price-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
  gap: 24px;
}

.price-header h2 {
  margin: 0;
}

.price-header .btn {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.price-tables {
  display: grid;
  gap: 48px;
  margin-bottom: 48px;
}

.price-table-wrapper h3 {
  margin-bottom: 24px;
  color: var(--accent-orange);
}

.price-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
}

.price-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-default);
}

.price-table thead {
  background: var(--bg-elevated);
}

.price-table th {
  padding: 16px;
  text-align: left;
  color: var(--text-primary);
  font-weight: 600;
  border-bottom: 2px solid var(--border-accent);
}

.price-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.price-table tbody tr:last-child td {
  border-bottom: none;
}

.price-table tbody tr:hover {
  background: rgba(255, 107, 43, 0.05);
}

.price-table td:nth-child(3) {
  color: var(--accent-orange);
  font-weight: 600;
}

.price-notes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.price-note-card {
  background: var(--bg-primary);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  transition: all 0.3s;
}

.price-note-card:hover {
  border-color: var(--accent-orange);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(255, 107, 43, 0.15);
}

.price-note-card h4 {
  margin-bottom: 12px;
  font-size: 1.125rem;
}

.price-note-card p {
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .price-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .price-header .btn {
    width: 100%;
    justify-content: center;
  }
  
  .price-table-scroll {
    margin: 0 -16px;
    padding: 0 16px;
  }
  
  .price-notes {
    grid-template-columns: 1fr;
  }
}

/* Price Banner */
.price-banner {
  padding: 0;
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.price-banner-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32px 0;
  gap: 32px;
}

.price-banner-text {
  display: flex;
  align-items: center;
  gap: 20px;
}

.price-banner-icon {
  font-size: 3.5rem;
  filter: drop-shadow(0 0 15px rgba(255, 107, 43, 0.4));
}

.price-banner-text > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.price-banner-text strong {
  font-size: 1.375rem;
  color: var(--text-primary);
}

.price-banner-text span {
  font-size: 1rem;
  color: var(--text-muted);
}

.price-banner .btn {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  flex-shrink: 0;
  padding: 16px 36px;
  font-size: 1.0625rem;
}

.price-banner-content > a:last-child {
  margin-left: 16px;
}

@media (max-width: 768px) {
  .price-banner-content {
    flex-direction: column;
    text-align: center;
    padding: 24px 0;
  }
  
  .price-banner-text {
    flex-direction: column;
    text-align: center;
  }
  
  .price-banner-icon {
    font-size: 3rem;
  }
  
  .price-banner .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Chat Categories */
.chat-categories {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.categories-title {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  text-align: center;
}

.category-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.category-btn {
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  text-align: center;
  transition: all 0.3s;
  font-size: 0.875rem;
  font-weight: 500;
}

.category-btn:hover {
  background: var(--bg-primary);
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  transform: translateY(-2px);
}

.category-questions {
  margin: 16px 0;
  padding: 16px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
}

.back-btn {
  background: var(--bg-surface) !important;
  border-color: var(--accent-orange) !important;
  color: var(--accent-orange) !important;
  margin-top: 8px;
}

.back-btn:hover {
  background: var(--accent-orange) !important;
  color: white !important;
}

/* Quick buttons improvements */
.quick-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.quick-btn {
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  transition: all 0.3s;
  font-size: 0.9rem;
}

.quick-btn:hover {
  background: var(--bg-primary);
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  transform: translateX(4px);
}