:root {
  --ink: #17202a;
  --muted: #64717f;
  --line: #dfe6ec;
  --paper: #ffffff;
  --mist: #f4f7fa;
  --night: #0f1b2a;
  --teal: #0f766e;
  --teal-dark: #0b5f59;
  --gold: #c88a2d;
  --coral: #d4564a;
  --shadow: 0 18px 45px rgba(24, 38, 52, 0.12);
  --soft-shadow: 0 10px 28px rgba(24, 38, 52, 0.09);
  --radius: 8px;
}

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

body {
  min-height: 100vh;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 5%, rgba(15, 118, 110, 0.11), transparent 28rem),
    linear-gradient(180deg, #fbfcfd 0%, #eef3f6 100%);
  line-height: 1.6;
}

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

.container,
.nav-container,
.footer-content {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(223, 230, 236, 0.8);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
}

.nav-container {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 800;
}

.logo-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: white;
  background: linear-gradient(135deg, var(--teal), var(--gold));
  box-shadow: 0 10px 22px rgba(15, 118, 110, 0.22);
  font-size: 0.85rem;
}

.logo-copy { display: grid; line-height: 1.05; }
.logo-copy small { color: var(--gold); font-size: 0.68rem; font-weight: 800; text-transform: uppercase; }

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.nav-link {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.93rem;
  font-weight: 700;
}

.nav-link:hover,
.nav-link.active {
  color: var(--teal-dark);
  background: rgba(15, 118, 110, 0.09);
}

#cartBadge:not(:empty) {
  min-width: 20px;
  height: 20px;
  display: inline-grid;
  place-items: center;
  padding: 0 0.35rem;
  border-radius: 999px;
  color: white;
  background: var(--coral);
  font-size: 0.75rem;
}

.page-shell { padding: 2rem 0 4rem; }

.hero {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: 3rem;
  padding: 4rem 0 2.5rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--teal-dark);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--gold); }

.hero h1,
.page-title h1 {
  max-width: 820px;
  font-size: clamp(2.4rem, 6vw, 5.6rem);
  line-height: 0.98;
  color: var(--night);
}

.hero p,
.page-title p {
  max-width: 680px;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions,
.product-actions,
.summary-actions,
.confirmation-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-top: 1.4rem;
}

.hero-showcase {
  min-height: 420px;
  position: relative;
  display: grid;
  align-items: end;
  overflow: hidden;
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(15, 27, 42, 0.1), rgba(15, 118, 110, 0.1)),
    url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?w=1200&auto=format&fit=crop") center/cover;
  box-shadow: var(--shadow);
}

.hero-showcase::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 28%, rgba(15, 27, 42, 0.78));
}

.showcase-panel {
  position: relative;
  z-index: 1;
  margin: 1rem;
  padding: 1.1rem;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: var(--radius);
  color: white;
  background: rgba(15, 27, 42, 0.68);
  backdrop-filter: blur(14px);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--line);
  box-shadow: var(--soft-shadow);
}

.metric { padding: 1.2rem; background: rgba(255,255,255,0.82); }
.metric strong { display: block; color: var(--night); font-size: 1.45rem; }
.metric span { color: var(--muted); font-size: 0.9rem; }

.surface,
.search-section,
.cart-summary,
.cart-items-container,
.checkout-form,
.order-summary,
.auth-container,
.confirmation-container,
.order-card {
  border: 1px solid rgba(223, 230, 236, 0.9);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--soft-shadow);
}

.search-section { display: grid; gap: 1rem; margin: 1.5rem 0 2rem; padding: 1rem; }
.search-form { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 0.75rem; }

.search-input,
.form-group input,
.form-group textarea,
.quantity-input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
  font: inherit;
  padding: 0.75rem 0.85rem;
}

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

.filter-btn,
.tab-btn {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: white;
  text-decoration: none;
  font-weight: 800;
  cursor: pointer;
}

.filter-btn.active,
.tab-btn.active,
.filter-btn:hover,
.tab-btn:hover {
  color: var(--teal-dark);
  background: rgba(15,118,110,0.1);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin: 2.5rem 0 1rem;
}

.section-heading h2,
.surface h2,
.cart-summary h2,
.order-summary h2,
.checkout-form h2 { color: var(--night); font-size: 1.45rem; line-height: 1.15; }

.section-heading p { color: var(--muted); }

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.2rem;
}

.product-card {
  overflow: hidden;
  border: 1px solid rgba(223, 230, 236, 0.9);
  border-radius: var(--radius);
  background: white;
  box-shadow: var(--soft-shadow);
}

.product-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.product-image { width: 100%; height: 220px; object-fit: cover; background: var(--mist); }
.product-info { display: grid; gap: 0.75rem; padding: 1rem; }

.product-meta,
.product-category,
.cart-item-category {
  color: var(--teal-dark);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.product-info h3,
.cart-item-details h3 { color: var(--night); font-size: 1.13rem; line-height: 1.2; }
.product-description { color: var(--muted); font-size: 0.94rem; }
.product-price,
.product-price-large,
.cart-item-total,
.summary-total,
.price-accent { color: var(--coral); font-weight: 900; }
.product-price { font-size: 1.2rem; }

.btn,
.search-btn {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.65rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font: inherit;
  font-size: 0.93rem;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary,
.search-btn { color: white; background: var(--teal); box-shadow: 0 10px 22px rgba(15,118,110,0.2); }
.btn-outline { border-color: var(--line); color: var(--ink); background: white; }
.btn-danger { color: white; background: var(--coral); }
.btn-large { min-height: 52px; padding: 0.85rem 1.25rem; }
.btn-full { width: 100%; }

.page-title { padding: 2.5rem 0 1.5rem; }
.back-link { display: inline-flex; margin-bottom: 1.2rem; color: var(--teal-dark); font-weight: 900; text-decoration: none; }

.product-detail {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 2rem;
  align-items: start;
}

.product-image-large {
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--mist);
}

.product-image-large img { width: 100%; min-height: 480px; object-fit: cover; }
.product-detail-info { display: grid; gap: 1rem; padding: 1.25rem; }
.product-detail-info h1 { color: var(--night); font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1; }
.product-price-large { font-size: 2rem; }
.tab-panels { margin-top: 0.8rem; }
.tab-panel { display: none; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); color: var(--muted); background: white; }
.tab-panel.active { display: block; }

.cart-layout,
.checkout-container {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(300px, 0.85fr);
  gap: 1.2rem;
  align-items: start;
}

.cart-items-container,
.cart-summary,
.order-summary,
.checkout-form,
.auth-container,
.confirmation-container { padding: 1.25rem; }

.cart-summary { position: sticky; top: 96px; }
.cart-items { display: grid; gap: 0.8rem; margin-top: 1rem; }

.cart-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.cart-item-image { width: 96px; height: 96px; border-radius: var(--radius); object-fit: cover; }
.quantity-input { width: 74px; text-align: center; }

.summary-row,
.summary-total,
.order-item,
.order-detail-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
}

.summary-total { border-bottom: none; font-size: 1.18rem; }

.checkout-form form,
.auth-container form { display: grid; gap: 1rem; margin-top: 1rem; }
.form-group { display: grid; gap: 0.45rem; }
.form-group label { color: var(--night); font-weight: 900; }
.form-group textarea { min-height: 118px; resize: vertical; }

.auth-page {
  min-height: calc(100vh - 220px);
  display: grid;
  place-items: center;
  padding: 2rem 0;
}

.auth-container { width: min(450px, 100%); }
.auth-title,
.confirmation-title { color: var(--night); font-size: 2rem; line-height: 1.1; }
.helper-text { margin-top: 1rem; color: var(--muted); text-align: center; }

.empty-state { padding: 3rem 1.25rem; text-align: center; }
.empty-state h2 { margin-bottom: 0.55rem; color: var(--night); }
.empty-state p { max-width: 520px; margin: 0 auto 1.3rem; color: var(--muted); }

.confirmation-container { width: min(760px, 100%); margin: 2rem auto; text-align: center; }
.confirmation-icon {
  width: 70px;
  height: 70px;
  display: grid;
  place-items: center;
  margin: 0 auto 1rem;
  border-radius: 999px;
  color: white;
  background: var(--teal);
  font-size: 2rem;
  font-weight: 900;
}

.order-details { margin: 1.4rem 0; padding: 1rem; border-radius: var(--radius); background: var(--mist); text-align: left; }
.orders-list { display: grid; gap: 1rem; }
.order-card { padding: 1.2rem; border-left: 4px solid var(--teal); }
.order-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.order-info { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.45rem 1rem; color: var(--muted); }
.order-items { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.status-pending { display: inline-flex; min-height: 30px; align-items: center; padding: 0.25rem 0.75rem; border-radius: 999px; color: #8a5c13; background: rgba(200,138,45,0.16); font-size: 0.78rem; font-weight: 900; }

footer { margin-top: 2rem; padding: 2rem 0; color: rgba(255,255,255,0.76); background: var(--night); }
.footer-content { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer-brand { color: white; font-weight: 900; }

@media (max-width: 860px) {
  .hero,
  .product-detail,
  .cart-layout,
  .checkout-container { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 2.5rem; }
  .hero-showcase { min-height: 330px; }
  .cart-summary { position: static; }
  .cart-item { grid-template-columns: 82px minmax(0, 1fr); }
}

@media (max-width: 640px) {
  .nav-container { min-height: auto; padding: 0.8rem 0; align-items: flex-start; flex-direction: column; }
  .nav-links { width: 100%; justify-content: flex-start; }
  .hero h1,
  .page-title h1 { font-size: 2.6rem; }
  .metric-strip,
  .search-form,
  .order-info { grid-template-columns: 1fr; }
  .product-actions,
  .hero-actions,
  .summary-actions { flex-direction: column; }
  .btn,
  .search-btn { width: 100%; }
  .product-image-large img { min-height: 320px; }
}