:root {
  --color-primary: #1a2332;
  --color-primary-light: #243347;
  --color-accent: #e8731a;
  --color-accent-hover: #d4650f;
  --color-text: #333;
  --color-text-light: #666;
  --color-text-muted: #999;
  --color-bg: #fff;
  --color-bg-light: #f5f7fa;
  --color-bg-dark: #0f1923;
  --color-border: #e0e0e0;
  --color-white: #fff;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.15);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: .3s ease;
  --container-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

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

ul {
  list-style: none;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.2rem; }

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

/* ========== HEADER ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 35, 50, .95);
  backdrop-filter: blur(10px);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(26, 35, 50, .98);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  height: 50px;
  width: auto;
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-white);
  line-height: 1.2;
}

.logo-text small {
  display: block;
  font-size: .7rem;
  font-weight: 400;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Navigation */
.main-nav ul {
  display: flex;
  gap: 8px;
}

.main-nav a {
  color: rgba(255,255,255,.85);
  font-family: var(--font-heading);
  font-size: .85rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: .5px;
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-white);
  background: rgba(232, 115, 26, .15);
}

.main-nav .has-dropdown {
  position: relative;
}

.main-nav .dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 260px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  z-index: 100;
}

.main-nav .has-dropdown:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav .dropdown a {
  display: block;
  padding: 10px 20px;
  color: var(--color-text);
  font-size: .85rem;
  text-transform: none;
  border-radius: 0;
}

.main-nav .dropdown a:hover {
  background: var(--color-bg-light);
  color: var(--color-accent);
}

.header-contacts {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-phone {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .95rem;
  white-space: nowrap;
}

.header-phone:hover {
  color: var(--color-accent);
}

/* Burger menu */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
  z-index: 1001;
}

.burger span {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

.burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

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

.burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .95rem;
  border-radius: var(--radius);
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: .5px;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 115, 26, .4);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn-secondary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-secondary:hover {
  background: var(--color-primary-light);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 22px;
  font-size: .85rem;
}

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  color: var(--color-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,25,35,.85) 0%, rgba(26,35,50,.7) 50%, rgba(232,115,26,.15) 100%);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  padding-top: 100px;
}

.hero-subtitle {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.hero h1 {
  color: var(--color-white);
  font-size: 3.5rem;
  margin-bottom: 20px;
  max-width: 700px;
}

.hero-desc {
  font-size: 1.2rem;
  color: rgba(255,255,255,.8);
  max-width: 550px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-features {
  display: flex;
  gap: 40px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,.15);
}

.hero-feature {
  text-align: center;
}

.hero-feature-num {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.hero-feature-label {
  font-size: .85rem;
  color: rgba(255,255,255,.7);
  margin-top: 4px;
}

/* ========== SECTIONS ========== */
.section {
  padding: 80px 0;
}

.section-dark {
  background: var(--color-primary);
  color: var(--color-white);
}

.section-dark h2,
.section-dark h3 {
  color: var(--color-white);
}

.section-light {
  background: var(--color-bg-light);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  color: var(--color-text-light);
  font-size: 1.05rem;
}

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-accent);
  margin-bottom: 12px;
}

/* ========== SERVICES GRID ========== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: rgba(232, 115, 26, .1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-accent);
}

.service-icon svg {
  width: 28px;
  height: 28px;
}

.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: middle;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.service-card p {
  color: var(--color-text-light);
  font-size: .9rem;
  margin-bottom: 16px;
}

.service-link {
  font-family: var(--font-heading);
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.service-link::after {
  content: '\2192';
  transition: transform var(--transition);
}

.service-link:hover::after {
  transform: translateX(4px);
}

/* ========== PRODUCTS GRID ========== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  border: 1px solid var(--color-border);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-card-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}

.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.product-card:hover .product-card-img img {
  transform: scale(1.05);
}

.product-card-body {
  padding: 24px;
}

.product-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.product-card p {
  color: var(--color-text-light);
  font-size: .9rem;
  margin-bottom: 16px;
}

/* ========== CATALOG GRID ========== */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.catalog-item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: center;
  transition: all var(--transition);
  border: 1px solid var(--color-border);
}

.catalog-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.catalog-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.catalog-item h4 {
  padding: 16px;
  font-size: 1rem;
}

/* ========== EQUIPMENT TABLE ========== */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.equipment-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.equipment-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.equipment-item .eq-icon {
  width: 40px;
  height: 40px;
  background: rgba(232, 115, 26, .1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent);
}

.equipment-item .eq-icon svg {
  width: 20px;
  height: 20px;
}

.equipment-item h4 {
  font-size: .9rem;
  font-weight: 600;
}

.equipment-item p {
  font-size: .8rem;
  color: var(--color-text-light);
}

/* ========== ADVANTAGES ========== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.advantage-item {
  text-align: center;
  padding: 32px 16px;
}

.advantage-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 16px;
  background: rgba(232, 115, 26, .15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.advantage-icon svg {
  width: 32px;
  height: 32px;
}

.advantage-item h4 {
  font-size: .95rem;
  line-height: 1.4;
}

/* ========== ABOUT SECTION ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-content h2 {
  margin-bottom: 20px;
}

.about-content p {
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.7;
}

.about-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

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

/* ========== GALLERY ========== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  position: relative;
}

.gallery-item::after {
  content: '\1F50D';
  position: absolute;
  inset: 0;
  background: rgba(26, 35, 50, .5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery-item:hover::after {
  opacity: 1;
}

.gallery-item img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform .5s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* ========== CONTACTS ========== */
.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: rgba(232, 115, 26, .1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent);
}

.contact-item-icon svg {
  width: 22px;
  height: 22px;
}

.footer-contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent);
}

.footer-contact-icon svg {
  width: 16px;
  height: 16px;
}

.contact-item h4 {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.contact-item p,
.contact-item a {
  font-size: .95rem;
  color: var(--color-text);
}

.contact-item a:hover {
  color: var(--color-accent);
}

.contact-person {
  font-size: .85rem;
  color: var(--color-text-light);
}

.map-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  min-height: 400px;
}

.map-wrapper iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ========== FOOTER ========== */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,.7);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-col h4 {
  color: var(--color-white);
  font-size: .95rem;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-about p {
  font-size: .9rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: rgba(255,255,255,.7);
  font-size: .9rem;
  transition: color var(--transition);
}

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

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: .9rem;
}

.footer-contact-item a {
  color: rgba(255,255,255,.7);
}

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

.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: .85rem;
}

/* ========== BREADCRUMBS ========== */
.breadcrumbs {
  padding: 120px 0 20px;
  background: var(--color-bg-light);
}

.breadcrumbs-list {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.breadcrumbs-list li {
  font-size: .85rem;
  color: var(--color-text-muted);
}

.breadcrumbs-list li a {
  color: var(--color-text-light);
}

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

.breadcrumbs-list li + li::before {
  content: '/';
  margin-right: 8px;
  color: var(--color-text-muted);
}

/* ========== PAGE HEADER ========== */
.page-header {
  background: var(--color-primary);
  padding: 140px 0 60px;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,25,35,.9) 0%, rgba(26,35,50,.7) 100%);
}

.page-header .container {
  position: relative;
  z-index: 2;
}

.page-header h1 {
  color: var(--color-white);
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.page-header p {
  color: rgba(255,255,255,.7);
  font-size: 1.1rem;
  max-width: 600px;
}

/* ========== SERVICE DETAIL PAGE ========== */
.service-detail {
  padding: 60px 0;
}

.service-detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
}

.service-content h2 {
  margin-bottom: 16px;
}

.service-content p {
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.7;
}

.service-content ul {
  margin-bottom: 20px;
}

.service-content ul li {
  padding: 8px 0 8px 24px;
  position: relative;
  color: var(--color-text-light);
}

.service-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

.service-sidebar {
  position: sticky;
  top: 100px;
}

.sidebar-card {
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
}

.sidebar-card h3 {
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.sidebar-nav a {
  display: block;
  padding: 10px 16px;
  color: var(--color-text);
  font-size: .9rem;
  border-radius: var(--radius);
  transition: all var(--transition);
  margin-bottom: 4px;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: var(--color-white);
  color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

/* ========== CTA SECTION ========== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  padding: 80px 0;
  text-align: center;
  color: var(--color-white);
}

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255,255,255,.7);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 32px;
}

/* ========== SPECS TABLE ========== */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}

.specs-table th,
.specs-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.specs-table th {
  background: var(--color-bg-light);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .85rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.specs-table td {
  font-size: .95rem;
}

/* ========== LIGHTBOX ========== */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.9);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.lightbox-overlay.active {
  display: flex;
}

.lightbox-overlay img {
  max-width: 90%;
  max-height: 90vh;
  border-radius: var(--radius);
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,.2);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ========== FORM ========== */
.contact-form {
  max-width: 500px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: .95rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* ========== ANIMATIONS ========== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity .6s ease, transform .6s ease;
}

.fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity .6s ease, transform .6s ease;
}

.fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.stagger-delay-1 { transition-delay: .1s; }
.stagger-delay-2 { transition-delay: .2s; }
.stagger-delay-3 { transition-delay: .3s; }
.stagger-delay-4 { transition-delay: .4s; }
.stagger-delay-5 { transition-delay: .5s; }