:root {
  --bg: #0f0f12;
  --surface: #1a1a21;
  --surface-2: #24242e;
  --border: #2e2e3a;
  --text: #f4f4f6;
  --muted: #9b9bab;
  --accent: #6c5ce7;
  --accent-hover: #7f70f0;
  --success: #00b894;
  --warn: #fdcb6e;
  --error: #ff7675;
  --radius: 12px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  font-family: 'DM Sans', system-ui, sans-serif;
}

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1200px, 100% - 2rem);
  margin-inline: auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 15, 18, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 0;
  flex-wrap: wrap;
}

.logo {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo:hover {
  color: var(--accent-hover);
  text-decoration: none;
}

.search {
  flex: 1;
  display: flex;
  gap: 0.5rem;
  min-width: 200px;
  max-width: 420px;
}

.search input {
  flex: 1;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

.nav__link {
  color: var(--muted);
  font-weight: 500;
}

.nav__link:hover {
  color: var(--text);
}

.nav__cart {
  position: relative;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.35rem;
  margin-left: 0.25rem;
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
}

.main {
  flex: 1;
  padding: 2rem 0 3rem;
}

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

.hero {
  margin-bottom: 2rem;
}

.hero h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  letter-spacing: -0.03em;
}

.hero p {
  margin: 0;
  color: var(--muted);
}

.categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.chip {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.chip:hover,
.chip--active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  text-decoration: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.card__image-wrap {
  display: block;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--surface-2);
}

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

.card__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--muted);
}

.card__body {
  padding: 1rem;
}

.card__category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.card__title {
  margin: 0.35rem 0;
  font-size: 1rem;
  font-weight: 600;
}

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

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

.card__price {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.card__form {
  margin: 0;
}

.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 768px) {
  .product-detail {
    grid-template-columns: 1fr;
  }
}

.product-detail__image {
  width: 100%;
  border-radius: var(--radius);
  aspect-ratio: 1;
  object-fit: cover;
  background: var(--surface-2);
}

.product-detail__price {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0.5rem 0;
}

.product-detail__desc {
  color: var(--muted);
}

.product-detail__form {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
  margin: 1.5rem 0;
}

.link-back {
  display: inline-block;
  margin-top: 1rem;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.1rem;
  border: none;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

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

.btn--primary:hover {
  background: var(--accent-hover);
  color: #fff;
  text-decoration: none;
}

.btn--ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  color: var(--text);
  border-color: var(--muted);
}

.btn--block {
  width: 100%;
}

.btn--sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.85rem;
}

.btn--lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

.input {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.input--qty {
  width: 4.5rem;
}

.label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 420px;
}

.form h1,
.form h2 {
  margin: 0 0 0.5rem;
}

.form-footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.auth {
  display: flex;
  justify-content: center;
  padding: 2rem 0;
}

.auth .form {
  width: 100%;
  max-width: 400px;
  padding: 1.75rem;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin: 0 0 1rem;
}

.alert--error {
  background: rgba(255, 118, 117, 0.15);
  color: var(--error);
}

.alert--success {
  background: rgba(0, 184, 148, 0.15);
  color: var(--success);
}

.alert--warn {
  background: rgba(253, 203, 110, 0.15);
  color: var(--warn);
}

.empty {
  color: var(--muted);
  padding: 2rem 0;
}

.cart-table-wrap {
  margin-top: 1rem;
}

.cart-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
}

.cart-table th,
.cart-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.cart-table th {
  background: var(--surface-2);
  font-size: 0.85rem;
  color: var(--muted);
}

.cart-table__product {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.cart-table__thumb {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 6px;
}

.cart-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.cart-total {
  margin-left: auto;
  font-size: 1.25rem;
}

.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2rem;
  align-items: start;
  margin-top: 1rem;
}

@media (max-width: 768px) {
  .checkout-layout {
    grid-template-columns: 1fr;
  }
}

.checkout-summary {
  padding: 1.25rem;
}

.checkout-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.checkout-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.checkout-total {
  margin-top: 1rem;
  font-size: 1.15rem;
}

.account-card {
  padding: 1.5rem;
  max-width: 480px;
}

.account-actions {
  margin-top: 1.25rem;
}

.muted {
  color: var(--muted);
}

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

.status {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
}

.status--pending {
  background: rgba(253, 203, 110, 0.2);
  color: var(--warn);
}

.status--paid,
.status--shipped {
  background: rgba(0, 184, 148, 0.2);
  color: var(--success);
}

.status--cancelled {
  background: rgba(255, 118, 117, 0.2);
  color: var(--error);
}

.order-card {
  padding: 1.5rem;
  max-width: 640px;
}

.error-page {
  text-align: center;
  padding: 4rem 0;
}

.error-page h1 {
  font-size: 4rem;
  margin: 0;
  color: var(--muted);
}

.inline-form {
  display: inline;
  margin: 0;
}