:root {
  --font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Helvetica Neue", Helvetica, Arial, sans-serif;

  --bg: #ffffff;
  --bg-secondary: #f5f5f7;
  --bg-card: #ffffff;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --border: rgba(0, 0, 0, 0.08);
  --header-bg: rgba(255, 255, 255, 0.75);

  --primary: #0c51b6;
  --primary-light: #2f74e0;
  --primary-dark: #093c88;
  --accent: #5ac8fa;

  --shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.1);
  --radius: 20px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg-secondary: #1d1d1f;
    --bg-card: #1c1c1e;
    --text: #f5f5f7;
    --text-secondary: #86868b;
    --border: rgba(255, 255, 255, 0.12);
    --header-bg: rgba(0, 0, 0, 0.6);

    --primary: #2f8bff;
    --primary-light: #5ac8fa;
    --primary-dark: #0c51b6;
    --accent: #64d2ff;

    --shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.6);
  }
}

:root[data-theme="light"] {
  --bg: #ffffff;
  --bg-secondary: #f5f5f7;
  --bg-card: #ffffff;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --border: rgba(0, 0, 0, 0.08);
  --header-bg: rgba(255, 255, 255, 0.75);

  --primary: #0c51b6;
  --primary-light: #2f74e0;
  --primary-dark: #093c88;
  --accent: #5ac8fa;

  --shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.1);
}

:root[data-theme="dark"] {
  --bg: #000000;
  --bg-secondary: #1d1d1f;
  --bg-card: #1c1c1e;
  --text: #f5f5f7;
  --text-secondary: #86868b;
  --border: rgba(255, 255, 255, 0.12);
  --header-bg: rgba(0, 0, 0, 0.6);

  --primary: #2f8bff;
  --primary-light: #5ac8fa;
  --primary-dark: #0c51b6;
  --accent: #64d2ff;

  --shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.6);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  font-family: var(--font-family);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-align: center;
  color: var(--text);
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-top: 10px;
  margin-bottom: 48px;
  font-size: 1.05rem;
}

section {
  padding: 100px 0;
}

.alt-bg {
  background: var(--bg-secondary);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  max-width: 1160px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
}

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

.nav-links a {
  font-weight: 400;
  font-size: 0.92rem;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition);
}

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

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

.theme-toggle {
  border: none;
  background: var(--bg-secondary);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  transition: background var(--transition), transform var(--transition);
}

.theme-toggle:hover {
  transform: scale(1.08);
}

.theme-toggle svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

.theme-toggle .icon-moon {
  display: none;
}

@media (prefers-color-scheme: dark) {
  .theme-toggle .icon-sun {
    display: none;
  }
  .theme-toggle .icon-moon {
    display: block;
  }
}

:root[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

:root[data-theme="light"] .theme-toggle .icon-sun {
  display: block;
}

:root[data-theme="light"] .theme-toggle .icon-moon {
  display: none;
}

.lang-switch {
  display: flex;
  gap: 2px;
  background: var(--bg-secondary);
  border-radius: 20px;
  padding: 4px;
}

.lang-btn {
  border: none;
  background: transparent;
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition), color var(--transition);
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  background: radial-gradient(120% 140% at 15% 10%, #1f6fd6 0%, transparent 55%),
    radial-gradient(120% 140% at 85% 90%, #5ac8fa 0%, transparent 50%),
    linear-gradient(160deg, #041c47 0%, #0c51b6 55%, #093c88 100%);
  color: #fff;
  text-align: center;
  padding: 140px 24px;
  overflow: hidden;
}

.hero-logo {
  width: 88px;
  height: 88px;
  margin: 0 auto 28px;
  border-radius: 22px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  position: relative;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
  position: relative;
}

.hero p {
  max-width: 560px;
  margin: 0 auto 36px;
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
}

.btn {
  display: inline-block;
  background: #fff;
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 15px 34px;
  border-radius: 980px;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  position: relative;
}

.btn:hover {
  transform: scale(1.04);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25);
}

.hero-call {
  margin-top: 22px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  position: relative;
}

.hero-call a {
  color: #fff;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* About */
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.about-text {
  max-width: 680px;
  margin: 0 auto 56px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.stat-num {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-top: 4px;
}

/* Products */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--border);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.product-icon {
  width: 60px;
  height: 60px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(12, 81, 182, 0.12), rgba(90, 200, 250, 0.16));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin-bottom: 20px;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
  color: var(--text);
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.product-price {
  font-weight: 600;
  color: var(--text);
}

/* Branches */
.branches-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.branch-card h3 {
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 14px;
}

.branch-card .info-row {
  display: flex;
  gap: 6px;
  font-size: 0.92rem;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.branch-card .info-row strong {
  color: var(--text);
  min-width: 90px;
  font-weight: 500;
}

/* Contact */
.contact-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  justify-content: space-between;
}

.contact-info {
  flex: 1 1 280px;
}

.contact-info .info-row {
  margin-bottom: 14px;
  font-size: 1.05rem;
}

.contact-info .info-row strong {
  display: inline-block;
  min-width: 80px;
  font-weight: 500;
  color: var(--text-secondary);
}

.contact-info .info-row a {
  color: var(--primary);
  font-weight: 600;
}

.social-links {
  flex: 1 1 220px;
}

.social-links > div:first-child {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.social-icons {
  display: flex;
  gap: 14px;
  margin-top: 14px;
}

.social-icons a {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: background var(--transition), transform var(--transition);
}

.social-icons a:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

.social-icons svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Footer */
.site-footer {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  text-align: center;
  padding: 32px 24px;
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

.site-footer .social-icons {
  justify-content: center;
  margin-bottom: 16px;
}

/* Responsive */
@media (max-width: 768px) {
  .header-inner {
    padding: 10px 14px;
  }

  .brand {
    font-size: 0.95rem;
    gap: 8px;
  }

  .brand img {
    width: 30px;
    height: 30px;
  }

  .header-actions {
    gap: 6px;
  }

  .theme-toggle {
    width: 30px;
    height: 30px;
  }

  .lang-switch {
    gap: 2px;
    padding: 3px;
  }

  .lang-btn {
    padding: 5px 8px;
    font-size: 0.7rem;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: center;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open {
    max-height: 320px;
  }

  .nav-links a {
    display: block;
    padding: 14px 0;
  }

  .hero {
    padding: 100px 20px;
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  section {
    padding: 64px 0;
  }
}