/*
 * default — the calm single-store storefront theme (ADR 0011 / 0036).
 *
 * The `.tks-*` class contract for DB-stored Twig system templates and
 * storefront components. Everything resolves to the brand tokens emitted by
 * BrandingService (`--color-{primary,secondary,accent,neutral}-*`, `--font-*`)
 * and the global `--tks-*` tokens in `storefront.css`, so changing Branding
 * restyles the whole storefront. Prefer these classes over raw Tailwind
 * utilities in DB templates — the Vite build cannot scan the DB.
 *
 * Loaded only for the `default` variant. The `marketplace` variant loads
 * `marketplace.css` instead — its own complete definition, never this file.
 */

@layer components {
  /* ── Layout ─────────────────────────────────────────────────────────── */
  .tks-container { width: 100%; max-width: 76rem; margin-inline: auto; padding-inline: var(--tks-gutter); box-sizing: border-box; }
  .tks-container--narrow { max-width: 46rem; }
  .tks-container--form { max-width: 28rem; }
  .tks-section { padding-block: var(--tks-section-y); }
  .tks-section--tight { padding-block: clamp(2rem, 4vw, 3rem); }
  .tks-section--surface { background: var(--tks-surface); }
  .tks-stack { display: flex; flex-direction: column; gap: var(--tks-gap, 1rem); }
  .tks-stack--sm { --tks-gap: 0.5rem; }
  .tks-stack--lg { --tks-gap: 2rem; }
  .tks-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--tks-gap, 0.75rem); }
  .tks-between { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.75rem; }
  .tks-grid { display: grid; gap: var(--tks-gap, 1.25rem); grid-template-columns: repeat(var(--tks-cols-sm, 1), minmax(0, 1fr)); }
  .tks-grid--2 { --tks-cols-sm: 1; }
  .tks-grid--3, .tks-grid--4 { --tks-cols-sm: 2; }
  @media (min-width: 768px) {
    .tks-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .tks-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .tks-grid--4 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  }
  @media (min-width: 1024px) {
    .tks-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  }
  .tks-split { display: grid; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
  @media (min-width: 1024px) {
    .tks-split { grid-template-columns: minmax(0, 1fr) 24rem; }
    .tks-split__aside { position: sticky; top: 6rem; }
  }

  /* ── Type ───────────────────────────────────────────────────────────── */
  .tks-eyebrow { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--tks-brand-ink); }
  .tks-h1, .tks-h2, .tks-h3, .tks-h4 { font-family: var(--tks-font-heading); color: var(--tks-ink); margin: 0; text-wrap: balance; }
  .tks-h1 { font-size: clamp(2rem, 4.6vw, 3.25rem); line-height: 1.08; font-weight: 650; letter-spacing: -0.025em; }
  .tks-h2 { font-size: clamp(1.5rem, 3vw, 2.125rem); line-height: 1.15; font-weight: 620; letter-spacing: -0.02em; }
  .tks-h3 { font-size: 1.125rem; line-height: 1.35; font-weight: 600; letter-spacing: -0.01em; }
  .tks-h4 { font-size: 0.9375rem; line-height: 1.4; font-weight: 600; }
  .tks-lead { font-size: clamp(1.0625rem, 1.6vw, 1.25rem); line-height: 1.6; color: var(--tks-text); margin: 0; text-wrap: pretty; }
  .tks-body { font-size: 1rem; line-height: 1.65; color: var(--tks-text); margin: 0; }
  .tks-small { font-size: 0.875rem; line-height: 1.5; }
  .tks-muted { color: var(--tks-muted); }
  .tks-num { font-variant-numeric: tabular-nums; }
  .tks-link { color: var(--tks-brand-ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
  .tks-link:hover { text-decoration-thickness: 2px; }
  .tks-prose { color: var(--tks-text); line-height: 1.75; max-width: 70ch; }
  .tks-prose :where(h2, h3) { font-family: var(--tks-font-heading); color: var(--tks-ink); line-height: 1.25; margin: 2em 0 0.6em; }
  .tks-prose :where(p, ul, ol) { margin: 0 0 1.1em; }
  .tks-prose :where(a) { color: var(--tks-brand-ink); text-decoration: underline; }
  .tks-prose :where(img) { border-radius: var(--tks-radius); max-width: 100%; height: auto; }

  /* ── Buttons ────────────────────────────────────────────────────────── */
  .tks-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    min-height: 44px; padding: 0.625rem 1.25rem; border-radius: var(--tks-radius-sm);
    border: 1px solid transparent; font: inherit; font-size: 0.9375rem; font-weight: 600; line-height: 1.2;
    text-decoration: none; cursor: pointer; white-space: nowrap;
    transition: background-color 0.15s var(--tks-ease), border-color 0.15s var(--tks-ease), color 0.15s var(--tks-ease), transform 0.15s var(--tks-ease);
  }
  .tks-btn:active { transform: translateY(1px); }
  .tks-btn:focus-visible, .tks-input:focus-visible, .tks-select:focus-visible, .tks-textarea:focus-visible, .tks-choice:focus-within, .tks-link:focus-visible {
    outline: 2px solid var(--tks-brand); outline-offset: 2px;
  }
  .tks-btn[disabled], .tks-btn[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; transform: none; }
  .tks-btn--primary { background: var(--tks-brand); color: var(--tks-brand-contrast); }
  .tks-btn--primary:hover { background: var(--tks-brand-hover); }
  .tks-btn--accent { background: var(--tks-accent); color: var(--tks-accent-contrast); }
  .tks-btn--outline { background: var(--tks-bg); color: var(--tks-ink); border-color: var(--tks-border-strong); }
  .tks-btn--outline:hover { border-color: var(--tks-ink); }
  .tks-btn--ghost { background: transparent; color: var(--tks-ink); }
  .tks-btn--ghost:hover { background: var(--tks-surface-2); }
  .tks-btn--sm { min-height: 36px; padding: 0.375rem 0.875rem; font-size: 0.875rem; }
  .tks-btn--lg { min-height: 52px; padding: 0.875rem 1.75rem; font-size: 1rem; }
  .tks-btn--block { width: 100%; }
  .tks-icon-btn { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: var(--tks-radius-sm); color: var(--tks-ink); background: transparent; border: 0; cursor: pointer; position: relative; }
  .tks-icon-btn:hover { background: var(--tks-surface-2); }
  .tks-icon { width: 1.25rem; height: 1.25rem; flex-shrink: 0; }

  /* ── Surfaces ───────────────────────────────────────────────────────── */
  .tks-card { background: var(--tks-bg); border: 1px solid var(--tks-border); border-radius: var(--tks-radius); padding: clamp(1rem, 2.5vw, 1.5rem); }
  .tks-card--flush { padding: 0; overflow: hidden; }
  .tks-card--muted { background: var(--tks-surface); }
  .tks-divider { border: 0; border-top: 1px solid var(--tks-border); margin: 0; }
  .tks-panel-overlay { box-shadow: var(--tks-shadow-overlay); }

  /* ── Forms ──────────────────────────────────────────────────────────── */
  .tks-field { display: flex; flex-direction: column; gap: 0.375rem; }
  .tks-label { font-size: 0.875rem; font-weight: 600; color: var(--tks-ink); }
  .tks-help { font-size: 0.8125rem; color: var(--tks-muted); }
  .tks-error { font-size: 0.8125rem; color: var(--tks-danger); }
  .tks-input, .tks-select, .tks-textarea {
    width: 100%; min-height: 44px; box-sizing: border-box; padding: 0.625rem 0.875rem;
    font: inherit; font-size: 1rem; color: var(--tks-ink); background: var(--tks-bg);
    border: 1px solid var(--tks-border-strong); border-radius: var(--tks-radius-sm);
    transition: border-color 0.15s var(--tks-ease);
  }
  .tks-input::placeholder, .tks-textarea::placeholder { color: var(--tks-subtle); }
  .tks-input:hover, .tks-select:hover, .tks-textarea:hover { border-color: var(--tks-subtle); }
  .tks-input[aria-invalid="true"], .tks-select[aria-invalid="true"] { border-color: var(--tks-danger); }
  .tks-textarea { min-height: 6rem; resize: vertical; }
  .tks-choice {
    display: flex; align-items: flex-start; gap: 0.75rem; padding: 0.875rem 1rem; cursor: pointer;
    border: 1px solid var(--tks-border); border-radius: var(--tks-radius-sm); background: var(--tks-bg);
    transition: border-color 0.15s var(--tks-ease), background-color 0.15s var(--tks-ease);
  }
  .tks-choice:hover { border-color: var(--tks-border-strong); }
  .tks-choice:has(input:checked) { border-color: var(--tks-brand); background: var(--tks-brand-soft); box-shadow: inset 0 0 0 1px var(--tks-brand); }
  .tks-choice input { accent-color: var(--tks-brand); margin-top: 0.2rem; }
  .tks-qty { display: inline-flex; align-items: center; border: 1px solid var(--tks-border-strong); border-radius: var(--tks-radius-sm); }
  .tks-qty button { width: 40px; height: 40px; border: 0; background: transparent; cursor: pointer; color: var(--tks-ink); font-size: 1.125rem; }
  .tks-qty button:hover { background: var(--tks-surface-2); }
  .tks-qty input { width: 3rem; height: 40px; border: 0; text-align: center; font: inherit; font-variant-numeric: tabular-nums; -moz-appearance: textfield; }
  .tks-qty input::-webkit-inner-spin-button { -webkit-appearance: none; }

  /* ── Feedback ───────────────────────────────────────────────────────── */
  .tks-badge { display: inline-flex; align-items: center; gap: 0.25rem; padding: 0.125rem 0.5rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; line-height: 1.5; background: var(--tks-surface-2); color: var(--tks-ink); }
  .tks-badge--brand { background: var(--tks-brand-tint); color: var(--tks-brand-ink); }
  .tks-badge--accent { background: var(--tks-accent-soft); color: var(--tks-accent-ink); }
  .tks-badge--success { background: var(--tks-success-soft); color: var(--tks-success); }
  .tks-badge--warning { background: var(--tks-warning-soft); color: var(--tks-warning); }
  .tks-badge--danger { background: var(--tks-danger-soft); color: var(--tks-danger); }
  .tks-alert { display: flex; gap: 0.75rem; padding: 0.875rem 1rem; border-radius: var(--tks-radius-sm); font-size: 0.9375rem; line-height: 1.5; border: 1px solid var(--tks-border); background: var(--tks-surface); color: var(--tks-ink); }
  .tks-alert--error { background: var(--tks-danger-soft); border-color: #fecaca; color: var(--tks-danger); }
  .tks-alert--success { background: var(--tks-success-soft); border-color: #bbf7d0; color: var(--tks-success); }
  .tks-alert--warning { background: var(--tks-warning-soft); border-color: #fde68a; color: var(--tks-warning); }
  .tks-empty { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 0.75rem; padding: clamp(2.5rem, 6vw, 4rem) 1rem; }
  .tks-skeleton { background: linear-gradient(90deg, var(--tks-surface-2) 25%, var(--tks-surface) 50%, var(--tks-surface-2) 75%); background-size: 200% 100%; animation: tks-shimmer 1.4s ease-in-out infinite; border-radius: var(--tks-radius-sm); }
  @keyframes tks-shimmer { to { background-position: -200% 0; } }
  .tks-spinner { width: 1rem; height: 1rem; border: 2px solid currentColor; border-right-color: transparent; border-radius: 999px; animation: tks-spin 0.7s linear infinite; }
  @keyframes tks-spin { to { transform: rotate(360deg); } }

  /* ── Commerce ───────────────────────────────────────────────────────── */
  .tks-price { font-variant-numeric: tabular-nums; font-weight: 650; color: var(--tks-ink); }
  .tks-price--lg { font-size: clamp(1.5rem, 3vw, 1.875rem); letter-spacing: -0.01em; }
  .tks-price--was { font-weight: 400; color: var(--tks-subtle); text-decoration: line-through; }
  .tks-media { position: relative; overflow: hidden; background: var(--tks-surface-2); border-radius: var(--tks-radius); }
  .tks-media > img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .tks-ratio-square { aspect-ratio: 1 / 1; }
  .tks-ratio-portrait { aspect-ratio: 4 / 5; }
  .tks-ratio-wide { aspect-ratio: 16 / 9; }
  .tks-product-card { display: flex; flex-direction: column; gap: 0.75rem; text-decoration: none; color: inherit; }
  .tks-product-card .tks-media > img { transition: transform 0.4s var(--tks-ease); }
  .tks-product-card:hover .tks-media > img { transform: scale(1.03); }
  .tks-product-card__name { font-size: 0.9375rem; line-height: 1.4; color: var(--tks-ink); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .tks-summary { display: flex; flex-direction: column; gap: 0.625rem; font-size: 0.9375rem; }
  .tks-summary > div { display: flex; justify-content: space-between; gap: 1rem; }
  .tks-summary dt { color: var(--tks-muted); }
  .tks-summary dd { margin: 0; font-variant-numeric: tabular-nums; color: var(--tks-ink); }
  .tks-summary__total { padding-top: 0.75rem; border-top: 1px solid var(--tks-border); font-weight: 650; font-size: 1.0625rem; }
  .tks-summary__total dt { color: var(--tks-ink); }
  .tks-steps { display: flex; gap: 0.5rem; list-style: none; padding: 0; margin: 0; font-size: 0.8125rem; color: var(--tks-muted); }
  .tks-steps li[aria-current="step"] { color: var(--tks-ink); font-weight: 600; }
  .tks-count-badge { position: absolute; top: 4px; right: 2px; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 999px; background: var(--tks-brand); color: var(--tks-brand-contrast); font-size: 0.6875rem; font-weight: 700; display: grid; place-items: center; font-variant-numeric: tabular-nums; }
}

@media (prefers-reduced-motion: reduce) {
  .tks-btn, .tks-choice, .tks-product-card .tks-media > img, .tks-input { transition: none; }
  .tks-skeleton, .tks-spinner { animation: none; }
}