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

:root {
  --primary: #1a73e8;
  --primary-light: #4a9af5;
  --primary-dark: #1557b0;
  --primary-glow: rgba(26, 115, 232, 0.12);

  --text: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #718096;

  --bg: #ffffff;
  --bg-secondary: #f7f8fc;
  --bg-tertiary: #eef1f6;
  --bg-card: #ffffff;

  --border: #e2e8f0;
  --border-light: #edf2f7;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 40px -5px rgba(0, 0, 0, 0.1);

  --radius: 10px;
  --radius-lg: 16px;

  --transition: 0.25s ease;
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --primary: #4a9af5;
  --primary-light: #6ab4ff;
  --primary-dark: #3a8ae5;
  --primary-glow: rgba(74, 154, 245, 0.15);

  --text: #e8ecf1;
  --text-secondary: #a0aec0;
  --text-muted: #718096;

  --bg: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #1c2333;
  --bg-card: #161b22;

  --border: #2d3748;
  --border-light: #1e2736;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.35);
  --shadow-xl: 0 20px 40px -5px rgba(0, 0, 0, 0.4);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

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

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

a:hover {
  color: var(--primary-dark);
}

[data-theme="dark"] a:hover {
  color: var(--primary-light);
}

::selection {
  background: var(--primary);
  color: #fff;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* HEADER */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition);
}

[data-theme="dark"] .header {
  background: rgba(13, 17, 23, 0.85);
  border-bottom-color: var(--border);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo img {
  height: 48px;
  border-radius: 8px;
}

.nav {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav-link:hover {
  color: var(--primary);
  background: var(--primary-glow);
}

.nav-link.active {
  color: var(--primary);
  background: var(--primary-glow);
  font-weight: 600;
}

.nav-lang {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  padding: 6px 14px;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  margin-left: 8px;
  transition: all var(--transition);
}

.nav-lang:hover {
  background: var(--primary);
  color: #fff;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius);
}

.menu-toggle:hover {
  background: var(--bg-tertiary);
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* HERO */
.hero {
  margin-top: 72px;
  position: relative;
  height: 560px;
  overflow: hidden;
  background: #0a0a0a;
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-img.active {
  opacity: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.1), rgba(0,0,0,0.5));
}

.hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 650px;
}

.section-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  padding: 6px 14px;
  background: var(--primary-glow);
  border-radius: var(--radius);
}

[data-theme="dark"] .section-tag {
  color: var(--primary-light);
}

.hero .section-tag {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.hero-content h1 {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero-content p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
  line-height: 1.7;
}

.hero-btns {
  display: flex;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(26, 115, 232, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26, 115, 232, 0.35);
}

[data-theme="dark"] .btn-primary {
  background: var(--primary);
  box-shadow: 0 4px 12px rgba(74, 154, 245, 0.25);
}

[data-theme="dark"] .btn-primary:hover {
  background: var(--primary-light);
  box-shadow: 0 6px 20px rgba(74, 154, 245, 0.35);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

.hero-slider-controls {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  padding: 0 24px;
  transform: translateY(-50%);
  pointer-events: none;
  z-index: 2;
}

.slider-btn {
  pointer-events: all;
  width: 48px;
  height: 48px;
  border: none;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  font-size: 18px;
  color: #1a1a2e;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .slider-btn {
  background: rgba(22, 27, 34, 0.9);
  color: var(--text);
}

.slider-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: scale(1.08);
}

.slider-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 2;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  border: 2px solid rgba(255, 255, 255, 0.6);
  cursor: pointer;
  transition: all var(--transition);
}

.slider-dot.active {
  background: #fff;
  border-color: #fff;
  transform: scale(1.3);
}

/* STATS */
.stats-section {
  padding: 60px 0;
  background: var(--bg);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 24px 16px;
}

.stat-number {
  display: block;
  font-size: 42px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}

[data-theme="dark"] .stat-number {
  color: var(--primary-light);
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* SERVICES */
.services-section {
  padding: 100px 0;
  background: var(--bg-secondary);
  text-align: center;
}

[data-theme="dark"] .services-section {
  background: var(--bg-tertiary);
}

.services-section h2 {
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  line-height: 1.25;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: left;
}

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

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
  border-color: var(--primary);
}

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

.service-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover img {
  transform: scale(1.03);
}

.service-card h3 {
  font-size: 18px;
  font-weight: 600;
  padding: 20px 24px 8px;
  color: var(--text);
}

.service-card p {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 0 24px;
  line-height: 1.7;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 16px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
}

.link-arrow:hover {
  gap: 10px;
}

/* GALLERY */
.gallery-section {
  padding: 100px 0;
  background: var(--bg);
  text-align: center;
}

.gallery-section h2 {
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 1;
}

.gallery-item.large {
  grid-column: span 2;
  grid-row: span 2;
  aspect-ratio: auto;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.gallery-overlay span {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
}

/* ABOUT */
.about-section {
  padding: 100px 0;
  background: var(--bg-secondary);
}

[data-theme="dark"] .about-section {
  background: var(--bg-tertiary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.about-main {
  grid-column: span 2;
  border-radius: var(--radius-lg);
  height: 280px;
  object-fit: cover;
  box-shadow: var(--shadow-lg);
}

.about-secondary {
  border-radius: var(--radius);
  height: 160px;
  object-fit: cover;
  box-shadow: var(--shadow-md);
}

.about-text h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text);
}

.about-text p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

/* BRANDS */
.brands-section {
  padding: 80px 0;
  background: var(--bg);
  text-align: center;
}

.brands-section h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.brands-grid {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.brand-item {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-muted);
  padding: 20px 32px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

[data-theme="dark"] .brand-item {
  background: var(--bg-tertiary);
}

.brand-item:hover {
  color: var(--primary);
  border-color: var(--primary);
}

/* CONTACT */
.contact-section {
  padding: 100px 0;
  background: var(--bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: start;
}

.contact-info h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.contact-info > p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}

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

.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.contact-icon {
  font-size: 20px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-glow);
  border-radius: var(--radius);
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.contact-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
  background: var(--bg-tertiary);
  color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-group textarea {
  resize: vertical;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-label input {
  width: auto;
  margin-top: 2px;
}

.checkbox-label a {
  color: var(--primary);
}

/* FOOTER */
.footer {
  background: var(--bg-secondary);
  padding: 50px 0;
  border-top: 1px solid var(--border);
}

[data-theme="dark"] .footer {
  background: var(--bg-tertiary);
}

.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-content {
  text-align: center;
}

.footer-logo {
  margin: 0 auto 16px;
  border-radius: 8px;
}

.footer-content p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-copy {
  font-size: 12px !important;
  color: var(--text-muted) !important;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-xl);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
    z-index: 99;
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .menu-toggle {
    display: flex;
  }

  .hero {
    height: 420px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-btns {
    flex-direction: column;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-item.large {
    grid-column: span 2;
    grid-row: span 1;
    aspect-ratio: 16/9;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}