/* ==========================================
   Promo24 — Промышленное оборудование
   Style: Blue Industrial Theme
   Colors: #1A5276 #2E86C1 #3498DB #EBF5FB #2C3E50 #2471A3
   ========================================== */

/* ===== Fonts ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #1A5276;
  --secondary: #2E86C1;
  --accent: #3498DB;
  --light-bg: #EBF5FB;
  --text: #2C3E50;
  --btn: #2471A3;
  --white: #ffffff;
  --border: #D4E6F1;
  --shadow: 0 4px 20px rgba(26, 82, 118, 0.1);
  --shadow-hover: 0 8px 30px rgba(26, 82, 118, 0.2);
  --transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

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

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

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

/* ===== Section Styles ===== */
.section {
  padding: 100px 0;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 18px;
  color: #666;
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px;
}

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

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

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

/* ===== Header / Navbar ===== */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(26, 82, 118, 0.1);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: var(--white);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Language switcher */
.lang-switcher {
  display: flex;
  gap: 4px;
  margin-left: 16px;
}

.lang-btn {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text);
}

.lang-btn:hover,
.lang-btn.active {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

/* Mobile menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 5px;
}

.mobile-menu-btn span {
  width: 25px;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, #0D3B5E 50%, var(--secondary) 100%);
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(52, 152, 219, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(46, 134, 193, 0.1) 0%, transparent 40%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 0 20px;
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.hero h1 span {
  color: var(--accent);
}

.hero p {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 40px;
  line-height: 1.7;
  max-width: 600px;
}

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

/* ===== Features / Advantages ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--white);
  border-radius: 12px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  width: 70px;
  height: 70px;
  background: var(--light-bg);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 32px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

/* ===== Logo Wall / Brands ===== */
.logo-wall {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 40px 60px;
  padding: 40px 0;
}

.logo-item {
  width: 140px;
  height: 60px;
  background: var(--white);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: var(--primary);
  border: 1px solid var(--border);
  transition: var(--transition);
  opacity: 0.7;
}

.logo-item:hover {
  opacity: 1;
  box-shadow: var(--shadow);
}

/* ===== CTA Section ===== */
.cta-section {
  text-align: center;
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  border-radius: 16px;
  margin: 0 20px;
}

.cta-section h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 32px;
}

/* ===== Brands Page ===== */
.brands-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.brand-card {
  background: var(--white);
  border-radius: 12px;
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}

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

.brand-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.brand-card .brand-tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--accent);
  color: var(--white);
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 14px;
}

.brand-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.brand-card ul li {
  background: var(--light-bg);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  color: var(--text);
}

.brand-extra {
  margin-top: 60px;
  text-align: center;
  padding: 40px;
  background: var(--light-bg);
  border-radius: 12px;
}

.brand-extra h3 {
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 16px;
}

.brand-extra-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.brand-extra-tags span {
  padding: 8px 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 14px;
  color: var(--text);
}

/* ===== Industries Page ===== */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.industry-card {
  background: var(--white);
  border-radius: 12px;
  padding: 40px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

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

.industry-icon {
  width: 60px;
  height: 60px;
  min-width: 60px;
  background: var(--light-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.industry-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.industry-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
}

/* ===== Delivery / Transactions Page ===== */
.delivery-intro {
  text-align: center;
  margin-bottom: 40px;
  font-size: 18px;
  color: #666;
}

.delivery-table-wrapper {
  overflow-x: auto;
}

.delivery-table {
  width: 100%;
  border-collapse: collapse;
  box-shadow: var(--shadow);
  border-radius: 12px;
  overflow: hidden;
}

.delivery-table thead {
  background: var(--primary);
  color: var(--white);
}

.delivery-table th {
  padding: 16px 24px;
  text-align: left;
  font-weight: 600;
  font-size: 14px;
}

.delivery-table td {
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.delivery-table tbody tr:hover {
  background: var(--light-bg);
}

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

/* ===== Warranty Page ===== */
.warranty-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 50px;
}

.warranty-card {
  background: var(--white);
  border-radius: 12px;
  padding: 36px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}

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

.warranty-icon {
  width: 60px;
  height: 60px;
  background: var(--light-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
}

.warranty-card h3 {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}

.warranty-card h3 span {
  font-size: 14px;
  font-weight: 400;
  color: #666;
}

.warranty-card p {
  font-size: 14px;
  color: #666;
}

.warranty-card.featured {
  border: 2px solid var(--accent);
  position: relative;
}

.warranty-notice {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px 32px;
  background: #FFF3CD;
  border: 1px solid #FFEAA7;
  border-radius: 12px;
  font-size: 15px;
  color: #856404;
}

.warranty-notice .notice-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.warranty-details {
  margin-top: 40px;
  padding: 36px;
  background: var(--light-bg);
  border-radius: 12px;
}

.warranty-details h3 {
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 16px;
}

.warranty-details ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.warranty-details ul li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--text);
}

.warranty-details ul li .check {
  color: #27AE60;
  font-weight: 700;
}

/* ===== Contact Page ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info h2 {
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 24px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.contact-method:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-hover);
}

.contact-method-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--light-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.contact-method h4 {
  font-size: 14px;
  color: #999;
  margin-bottom: 2px;
}

.contact-method a {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
}

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

/* Contact Form */
.contact-form-wrapper {
  background: var(--white);
  border-radius: 12px;
  padding: 40px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.contact-form-wrapper h3 {
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 24px;
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ===== Footer ===== */
.footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: var(--white);
  font-size: 22px;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 300px;
}

.footer h4 {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 20px;
}

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

.footer ul li a {
  font-size: 14px;
  opacity: 0.8;
  transition: var(--transition);
}

.footer ul li a:hover {
  opacity: 1;
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  opacity: 0.6;
}

/* ===== Page Header ===== */
.page-header {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, var(--primary), #0D3B5E);
  color: var(--white);
  text-align: center;
}

.page-header h1 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 12px;
}

.page-header p {
  font-size: 18px;
  opacity: 0.85;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .warranty-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: flex; }
  
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    gap: 16px;
  }

  .hero h1 { font-size: 32px; }
  .hero p { font-size: 16px; }
  .section-title { font-size: 28px; }
  .section { padding: 60px 0; }

  .features-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: 1fr; }
  .warranty-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }

  .page-header { padding: 120px 0 40px; }
  .page-header h1 { font-size: 28px; }

  .industry-card { flex-direction: column; }
  .cta-section { padding: 40px 20px; }
  .cta-section h2 { font-size: 24px; }

  .delivery-table th,
  .delivery-table td { padding: 12px 16px; font-size: 13px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 26px; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; justify-content: center; }
}