:root {
  --primary: #1a5cff;
  --primary-dark: #0d3db8;
  --primary-light: #e8f0ff;
  --navy: #0f1f3d;
  --accent-red: #e53935;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --bg-soft: #f4f7fb;
  --white: #ffffff;
  --radius: 8px;
  --shadow: 0 8px 24px rgba(15, 31, 61, 0.08);
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Poppins", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

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

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

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

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.hidden {
  display: none !important;
}

/* Top bar */
.top-bar {
  background: var(--navy);
  color: #cbd5e1;
  font-size: 0.85rem;
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.55rem 0;
}

.top-login {
  color: #fff;
  white-space: nowrap;
}

/* Header */
.site-header {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}

.header-main {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.25rem;
  padding: 1rem 0;
}

.logo-link img {
  height: 44px;
  width: auto;
}

.header-search {
  display: flex;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.header-search input {
  flex: 1;
  border: 0;
  padding: 0.85rem 1rem;
  font: inherit;
  min-width: 0;
}

.header-search button {
  border: 0;
  background: var(--primary);
  color: #fff;
  padding: 0 1.1rem;
  cursor: pointer;
}

.header-actions {
  display: flex;
  gap: 0.75rem;
}

.header-icon {
  position: relative;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--white);
  color: var(--text);
  border: 1px solid var(--border);
}

.header-icon .badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 0.7rem;
  display: grid;
  place-items: center;
}

.main-nav {
  background: var(--primary);
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
}

.main-nav a {
  display: block;
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.85rem 0;
}

.main-nav a.active,
.main-nav a:hover {
  color: #dbeafe;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 0.7rem 1.35rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: 0.2s ease;
}

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

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

.btn-outline {
  background: transparent;
  border-color: #fff;
  color: #fff;
}

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

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

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

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
}

/* Hero */
.hero {
  background: linear-gradient(120deg, #0d3db8 0%, #1a5cff 55%, #4f8bff 100%);
  color: #fff;
  padding: 3rem 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 2rem;
}

.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin: 0 0 1rem;
}

.hero p {
  opacity: 0.95;
  max-width: 34ch;
}

.hero-media img {
  border-radius: 16px;
  box-shadow: var(--shadow);
}

/* Category tiles */
.category-section {
  padding: 3rem 0;
}

.category-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1rem;
}

.cat-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-soft);
  min-height: 180px;
  display: flex;
  align-items: flex-end;
  padding: 1.25rem;
}

.cat-card.large {
  min-height: 380px;
  grid-row: span 2;
}

.cat-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cat-card .cat-content {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.92);
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  max-width: 70%;
}

.cat-side {
  display: grid;
  gap: 1rem;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.section-head h2 {
  margin: 0;
  font-size: 1.6rem;
}

.product-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.product-tabs button {
  border: 0;
  background: var(--bg-soft);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font: inherit;
  cursor: pointer;
}

.product-tabs button.active {
  background: var(--primary);
  color: #fff;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.product-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.product-thumb {
  position: relative;
  aspect-ratio: 1;
  background: #f8fafc;
}

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

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
}

.product-badge.sale {
  background: var(--primary);
}

.product-badge.new {
  background: #111827;
}

.product-info {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.product-info h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.35;
}

.product-price {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
}

.price {
  color: var(--primary);
  font-weight: 700;
  font-size: 1.05rem;
}

.old-price {
  color: var(--muted);
  text-decoration: line-through;
  font-size: 0.9rem;
}

.promo-banner {
  margin: 2rem 0 3rem;
  background: linear-gradient(90deg, var(--accent-red), #c62828 40%, var(--primary) 40%);
  color: #fff;
  border-radius: 12px;
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.deal-section {
  padding: 3rem 0;
  background: var(--bg-soft);
}

.deal-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 1.5rem;
}

.deal-card,
.deal-list-card {
  background: var(--white);
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.deal-card img {
  border-radius: var(--radius);
  margin: 1rem 0;
}

.countdown {
  display: flex;
  gap: 0.75rem;
  margin: 1rem 0;
}

.countdown div {
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  text-align: center;
  min-width: 64px;
}

.countdown strong {
  display: block;
  font-size: 1.2rem;
}

.deal-list {
  display: grid;
  gap: 1rem;
}

.deal-list article {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1rem;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
}

.deal-list article:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.testimonials {
  padding: 3rem 0;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.testimonial-card {
  background: var(--primary-light);
  border-radius: 12px;
  padding: 1.5rem;
}

.testimonial-card .avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.brands {
  padding: 2rem 0 3rem;
}

.brand-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  text-align: center;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.blog-preview {
  padding: 3rem 0;
  background: var(--bg-soft);
}

.blog-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.blog-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1rem;
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.blog-card img {
  height: 100%;
  min-height: 160px;
  object-fit: cover;
}

.blog-card .body {
  padding: 1rem 1rem 1rem 0;
}

/* Footer */
.site-footer {
  background: #eef3f9;
  margin-top: 3rem;
  padding-top: 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2rem;
}

.footer-col h4 {
  margin: 0 0 0.75rem;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li {
  margin-bottom: 0.4rem;
}

.footer-col a {
  color: var(--text);
}

.social-links {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.social-links a {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.footer-legal {
  margin-top: 2rem;
  border-top: 1px solid var(--border);
  padding: 1rem 0 1.5rem;
  font-size: 0.9rem;
}

.footer-legal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.legal-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.payment-icons {
  display: flex;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.8rem;
}

/* Forms */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.7rem 0.85rem;
  font: inherit;
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: var(--accent-red);
}

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.checkbox-field input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 0.2rem;
  flex-shrink: 0;
  accent-color: var(--primary);
}

.checkbox-field label {
  font-size: 0.9rem;
  line-height: 1.45;
}

.field-error {
  color: var(--accent-red);
  font-size: 0.82rem;
  margin: 0.35rem 0 0;
}

.form-note.success {
  color: #15803d;
  margin-top: 0.5rem;
}

.page-hero {
  background: var(--primary-light);
  padding: 2.5rem 0;
}

.page-hero h1 {
  margin: 0;
}

.page-content {
  padding: 2.5rem 0 3rem;
}

.prose {
  max-width: 820px;
}

.prose h2 {
  margin-top: 2rem;
}

.legal-doc {
  max-width: 900px;
}

.legal-doc h2 {
  margin-top: 2rem;
  font-size: 1.25rem;
}

.cart-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 2rem;
  align-items: start;
}

.cart-row {
  display: grid;
  grid-template-columns: 96px 1fr auto;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.cart-row img {
  border-radius: var(--radius);
  object-fit: cover;
}

.qty-control {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.qty-btn {
  border: 0;
  background: var(--bg-soft);
  width: 36px;
  height: 36px;
  cursor: pointer;
  font-size: 1.1rem;
}

.qty-input {
  width: 48px;
  border: 0;
  text-align: center;
  font: inherit;
}

.link-btn {
  border: 0;
  background: none;
  color: var(--accent-red);
  cursor: pointer;
  padding: 0;
  margin-top: 0.35rem;
}

.summary-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
}

.success-panel {
  background: #ecfdf5;
  border: 1px solid #86efac;
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
}

.cart-toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--navy);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  opacity: 0;
  transform: translateY(10px);
  transition: 0.25s ease;
  pointer-events: none;
  z-index: 50;
}

.cart-toast.show {
  opacity: 1;
  transform: translateY(0);
}

.shop-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: end;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--muted);
  padding: 2rem;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero-grid,
  .deal-grid,
  .category-grid {
    grid-template-columns: 1fr;
  }
  .cat-card.large {
    grid-row: auto;
    min-height: 280px;
  }
}

@media (max-width: 768px) {
  .header-main {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "logo actions"
      "search search";
  }
  .logo-link {
    grid-area: logo;
  }
  .header-actions {
    grid-area: actions;
  }
  .header-search {
    grid-area: search;
  }
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .blog-card {
    grid-template-columns: 1fr;
  }
  .blog-card .body {
    padding: 0 1rem 1rem;
  }
  .testimonial-grid,
  .cart-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .promo-banner {
    background: linear-gradient(135deg, var(--accent-red), var(--primary));
  }
}

@media (max-width: 480px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
  .brand-row {
    grid-template-columns: repeat(2, 1fr);
  }
}