/* Components: buttons, cards, forms, alerts, hero */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  font-family: inherit;
  line-height: 1.2;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

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

.btn--ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn--ghost:hover {
  border-color: var(--color-muted);
  text-decoration: none;
}

.hero {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.hero__inner {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 3rem max(var(--section-pad-x), env(safe-area-inset-right)) 3.5rem
    max(var(--section-pad-x), env(safe-area-inset-left));
  box-sizing: border-box;
}

@media (max-width: 599px) {
  .hero__inner {
    padding-top: 2rem;
    padding-bottom: 2.5rem;
  }

  .hero h1 {
    max-width: none;
  }
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  max-width: 18ch;
  margin-bottom: 1rem;
}

.hero p {
  color: var(--color-muted);
  max-width: min(36rem, 100%);
  margin-bottom: 1.75rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 140px), 1fr));
  gap: 1rem;
}

.category-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  text-align: center;
  color: var(--color-text);
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.category-card,
.category-card:visited {
  color: var(--color-text);
}

.category-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  text-decoration: none;
  color: var(--color-text);
}

.category-card strong {
  display: block;
  font-size: 0.95rem;
}

.category-card span {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr));
  gap: clamp(0.85rem, 2.5vw, 1.25rem);
}

.part-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.part-card:hover {
  box-shadow: 0 4px 14px rgba(15, 17, 17, 0.12);
  border-color: #c7cccc;
}

.part-card__media {
  aspect-ratio: 4 / 3;
  background: var(--color-surface-2);
  object-fit: cover;
  width: 100%;
}

.part-card__body {
  padding: 1rem 1.1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.part-card__title {
  font-size: 1.05rem;
  margin: 0;
}

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

.part-card__title a:hover {
  color: var(--color-product-link-hover);
  text-decoration: underline;
}

.part-card__meta {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.part-card__price {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-price);
  margin-top: auto;
}

.part-card__seller {
  font-size: 0.78rem;
  color: var(--color-muted);
  margin: 0;
}

.filters {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  /* Sticky only beside the grid on large screens; on phones it overlapped listing cards */
  position: static;
}

@media (min-width: 900px) {
  .filters {
    position: sticky;
    top: calc(var(--header-offset) + 0.5rem);
    align-self: start;
  }
}

.filters h2 {
  font-size: 1rem;
  margin: 0 0 1rem;
}

.field {
  margin-bottom: 1rem;
}

.field label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 0.35rem;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  max-width: 100%;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: inherit;
  font-size: max(1rem, 16px);
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.field--error input,
.field--error select,
.field--error textarea {
  border-color: var(--color-danger);
}

.field-error {
  font-size: 0.8rem;
  color: var(--color-danger);
  margin-top: 0.25rem;
  display: none;
}

.field--error .field-error {
  display: block;
}

.field-hint {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin: 0.35rem 0 0;
}

.field--upload input[type="file"] {
  width: 100%;
  max-width: 100%;
  padding: 0.4rem 0;
  font-size: max(0.95rem, 16px);
  font-family: inherit;
}

.sell-photo-preview-wrap {
  margin-top: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface-2);
  padding: 0.5rem;
  max-width: min(28rem, 100%);
}

.sell-photo-preview {
  display: block;
  width: 100%;
  max-height: 220px;
  object-fit: contain;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.alert {
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.alert--hidden {
  display: none;
}

.contact-form {
  max-width: min(36rem, 100%);
}

.alert--success {
  background: rgba(47, 133, 90, 0.12);
  border: 1px solid var(--color-success);
  color: var(--color-text);
}

.alert--success a {
  color: var(--color-success);
  font-weight: 600;
  text-decoration: underline;
}

.alert--success a:hover {
  color: var(--color-text);
}

.alert--info {
  background: rgba(166, 124, 0, 0.1);
  border: 1px solid var(--color-accent);
}

.listing-detail__price {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-price);
  margin: 0 0 0.35rem;
}

.listing-detail__seller {
  margin-bottom: 1rem;
}

.listing-detail__actions {
  margin-top: 1.5rem;
}

.listing-detail .page-title {
  color: var(--color-text);
}

.listing-detail__layout {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

@media (min-width: 800px) {
  .listing-detail__layout {
    grid-template-columns: 1.1fr 1fr;
  }
}

.listing-detail__image {
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  overflow: hidden;
  background: var(--color-surface-2);
}

.listing-detail__image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.prose {
  max-width: 65ch;
}

.prose code {
  background: var(--color-surface-2);
  padding: 0.15em 0.35em;
  border-radius: 4px;
  font-size: 0.9em;
}

.prose h2 {
  font-size: 1.25rem;
  margin-top: 1.75rem;
}

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-muted);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.empty-state--hidden {
  display: none;
}

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

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.badge {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
}

.results-count {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-bottom: 1rem;
}

.sell-account-hint {
  font-size: 0.9rem;
}

.auth-demo-hint {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.site-nav__auth .site-nav__session {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
}

.site-nav__hello {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.site-nav__hello strong {
  color: var(--color-text);
  font-weight: 600;
}

.role-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-muted);
}

.role-badge--admin {
  border-color: #c4a035;
  color: #6b5a1a;
  background: #faf6e7;
}

.btn--nav-signout {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
}

.btn--small {
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.95rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.data-table th,
.data-table td {
  padding: 0.65rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background: var(--color-surface-2);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-muted);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table a {
  font-weight: 600;
}

.dashboard-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1rem;
}

@media (max-width: 420px) {
  .dashboard-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .dashboard-toolbar .btn {
    justify-content: center;
  }
}

.dashboard-table-region {
  margin-top: 0.25rem;
}

.admin-contacts__message-cell {
  max-width: 22rem;
  white-space: pre-wrap;
  word-break: break-word;
  vertical-align: top;
}

@media (max-width: 640px) {
  .admin-contacts__message-cell {
    max-width: none;
  }
}

.dashboard-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  justify-content: flex-end;
}

@media (max-width: 720px) {
  .data-table thead {
    display: none;
  }

  .data-table {
    font-size: 0.9rem;
  }

  .data-table tr {
    display: block;
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 0;
  }

  .data-table td {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    border: none;
    padding: 0.35rem 0.85rem;
    word-break: break-word;
  }

  .data-table td::before {
    content: attr(data-label);
    flex-shrink: 0;
    max-width: 42%;
    font-weight: 600;
    color: var(--color-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
  }
}