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

:root {
  --color-primary: #0a1f3d;
  --color-primary-light: #1a4a7a;
  --color-accent: #b45309;
  --color-accent-muted: rgba(180, 83, 9, 0.14);
  --color-complement: #7c5c6e;
  --color-bg: #eef3f9;
  --color-surface: #ffffff;
  --color-text: #111827;
  --color-text-muted: #4b5563;
  --color-border: #cdd8e8;
  --color-in-stock: #16a34a;
  --color-hero-tint: #dbeaf4;
  --color-section-tint: #e4f0f7;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(10, 31, 61, 0.06);
  --shadow: 0 2px 8px rgba(10, 31, 61, 0.08), 0 1px 2px rgba(10, 31, 61, 0.04);
  --shadow-lg: 0 16px 40px rgba(10, 31, 61, 0.1), 0 4px 12px rgba(10, 31, 61, 0.06);
  --transition: 0.2s ease;
}

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

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

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Header ---- */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(10, 31, 61, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo-mark {
  flex-shrink: 0;
  height: 34px;
  width: auto;
  display: block;
}

.logo-dot {
  color: var(--color-complement);
}

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

.nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

.lang-toggle {
  background: var(--color-accent-muted);
  border: 1px solid rgba(180, 83, 9, 0.35);
  color: var(--color-primary);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.03em;
}

.lang-toggle:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

/* ---- Hero ---- */

.hero {
  padding: 160px 0 56px;
  text-align: center;
  background: linear-gradient(
    165deg,
    var(--color-hero-tint) 0%,
    #e8f2fa 42%,
    var(--color-bg) 100%
  );
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  line-height: 1.15;
  max-width: 700px;
  margin: 0 auto 20px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 540px;
  margin: 0 auto 0;
  line-height: 1.7;
}

/* ---- Buttons ---- */

.btn {
  display: inline-block;
  background: linear-gradient(165deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  color: #fff;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(10, 31, 61, 0.2);
}

.btn:hover {
  background: linear-gradient(165deg, #1e5a8f 0%, var(--color-primary-light) 100%);
  border-color: var(--color-primary-light);
  box-shadow: 0 4px 14px rgba(180, 83, 9, 0.22);
}

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

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

/* ---- Products ---- */

.products {
  padding: 88px 0 100px;
}

.products h2,
.contact h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 56px;
  letter-spacing: -0.02em;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.product-card {
  background: var(--color-surface);
  border: 1px solid rgba(10, 31, 61, 0.12);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.product-img {
  background: linear-gradient(145deg, var(--color-section-tint) 0%, #dceaf3 100%);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

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

.product-body {
  padding: 28px 28px 32px;
}

.product-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: #92400e;
  background: var(--color-accent-muted);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
  text-transform: uppercase;
  border: 1px solid rgba(180, 83, 9, 0.28);
}

.product-body h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.product-body p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.product-body h3 + p {
  margin-bottom: 16px;
}

.product-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 4px;
  margin-bottom: 6px;
}

.product-body p.product-stock {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-in-stock);
  margin-bottom: 0 !important;
}

/* ---- Contact ---- */

.contact {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--color-section-tint) 0%, #dceef6 50%, var(--color-bg) 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 56px;
  align-items: start;
}

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  font-family: var(--font);
  font-size: 0.9rem;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(180, 83, 9, 0.18);
}

.form-group textarea {
  resize: vertical;
}

.contact-form .btn {
  width: 100%;
  text-align: center;
  margin-top: 4px;
}

.contact-info {
  padding-top: 8px;
}

.info-block {
  margin-bottom: 28px;
}

.info-block h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.info-block h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.info-block a {
  font-size: 0.9rem;
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
}

.info-block a:hover {
  text-decoration: underline;
}

/* ---- Footer ---- */

.footer {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

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

.footer p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ---- Responsive ---- */

@media (max-width: 768px) {
  .nav {
    gap: 20px;
  }

  .hero {
    padding: 130px 0 48px;
  }

  .products {
    padding: 72px 0 72px;
  }

  .product-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .contact {
    padding: 72px 0;
  }

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

  .contact-info {
    order: -1;
  }
}

@media (max-width: 480px) {
  .header-inner {
    height: 56px;
  }

  .hero {
    padding: 110px 0 40px;
  }

  .products {
    padding: 56px 0 56px;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-sub {
    font-size: 1rem;
  }

  .contact-form {
    padding: 24px;
  }

  .product-body {
    padding: 20px 20px 24px;
  }
}