/* ═══════════════════════════════════════════════════════════
   CLIXHOUSE CLOTHING — clothing.clixhouse.com
   Curated boutique · Guasave, Sinaloa
   ═══════════════════════════════════════════════════════════ */

@layer base, tokens, layout, components, utilities;

/* ─── BASE ─── */

@layer base {
  @font-face {
    font-family: 'Fraunces';
    src: url('/static/fonts/fraunces-latin.woff2') format('woff2');
    font-display: swap;
    font-weight: 100 900;
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC,
                   U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074,
                   U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
                   U+FEFF, U+FFFD, U+00C0-00FF;
  }

  @font-face {
    font-family: 'Fraunces';
    src: url('/static/fonts/fraunces-italic-latin.woff2') format('woff2');
    font-display: swap;
    font-style: italic;
    font-weight: 100 900;
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC,
                   U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074,
                   U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
                   U+FEFF, U+FFFD, U+00C0-00FF;
  }

  @font-face {
    font-family: 'DM Sans';
    src: url('/static/fonts/dm-sans-latin.woff2') format('woff2');
    font-display: swap;
    font-weight: 100 900;
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC,
                   U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074,
                   U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
                   U+FEFF, U+FFFD, U+00C0-00FF;
  }

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

  html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-body);
    font-size: var(--text-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--surface-0);
    -webkit-font-smoothing: auto;
  }

  img {
    max-inline-size: 100%;
    block-size: auto;
    display: block;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  button {
    font: inherit;
    color: inherit;
    cursor: pointer;
    border: none;
    background: none;
  }

  input, select, textarea {
    font: inherit;
    color: inherit;
  }

  ul, ol {
    list-style: none;
  }

  :focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
  }

  :focus:not(:focus-visible) {
    outline: none;
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
      scroll-behavior: auto !important;
    }
  }
}

/* ─── TOKENS ─── */

@layer tokens {
  :root {
    /* Surfaces */
    --surface-0: oklch(97% 0.005 80);
    --surface-1: oklch(100% 0 0);
    --surface-2: oklch(95% 0.005 80);
    --surface-3: oklch(98% 0.003 80);
    --surface-input: oklch(100% 0 0);
    --surface-nav: oklch(99% 0.003 80 / 0.95);

    /* Text */
    --text-primary: oklch(15% 0.01 80);
    --text-secondary: oklch(40% 0.01 80);
    --text-tertiary: oklch(50% 0.005 80);
    --text-inverse: oklch(97% 0 0);

    /* Borders */
    --border-subtle: oklch(88% 0.005 80);
    --border-visible: oklch(75% 0.01 80);
    --border-focus: oklch(35% 0.01 80);

    /* Semantic */
    --color-success: oklch(50% 0.15 145);
    --color-warning: oklch(55% 0.15 75);
    --color-error: oklch(50% 0.2 25);
    --color-info: oklch(45% 0.1 250);

    /* Interactive */
    --color-action: oklch(15% 0.01 80);
    --color-action-hover: oklch(25% 0.01 80);
    --color-action-text: oklch(97% 0 0);

    /* Sale */
    --color-sale: oklch(50% 0.2 25);

    /* Fonts */
    --font-display: 'Fraunces', 'Georgia', 'Times New Roman', serif;
    --font-body: 'DM Sans', 'Helvetica Neue', 'Arial', sans-serif;
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;

    /* Type scale */
    --text-display: clamp(2.5rem, 7vw, 5rem);
    --text-h1: clamp(1.75rem, 4vw, 3rem);
    --text-h2: clamp(1.25rem, 2.5vw, 2rem);
    --text-h3: clamp(1rem, 1.5vw, 1.25rem);
    --text-body: clamp(0.875rem, 1vw + 0.5rem, 1.0625rem);
    --text-sm: clamp(0.75rem, 0.8vw + 0.4rem, 0.875rem);
    --text-xs: 0.6875rem;
    --text-price: clamp(1rem, 1.2vw + 0.5rem, 1.25rem);

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-8: 3rem;
    --space-10: 4rem;
    --space-12: 6rem;
    --space-16: 8rem;

    /* Radii */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 10px;
    --radius-full: 9999px;

    /* Motion */
    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 400ms;
    --ease-default: cubic-bezier(0.25, 0.1, 0.25, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Shadows */
    --shadow-sm: 0 1px 3px oklch(0% 0 0 / 0.06), 0 1px 2px oklch(0% 0 0 / 0.04);
    --shadow-md: 0 4px 12px oklch(0% 0 0 / 0.08), 0 2px 4px oklch(0% 0 0 / 0.04);
    --shadow-lg: 0 8px 24px oklch(0% 0 0 / 0.1), 0 4px 8px oklch(0% 0 0 / 0.05);
  }
}

/* ─── LAYOUT ─── */

@layer layout {
  .container {
    inline-size: min(100% - var(--space-5) * 2, 1200px);
    margin-inline: auto;
  }

  .container-narrow {
    inline-size: min(100% - var(--space-5) * 2, 720px);
    margin-inline: auto;
  }

  /* ── Header ── */

  .site-header {
    position: sticky;
    inset-block-start: 0;
    z-index: 50;
    background: var(--surface-nav);
    backdrop-filter: blur(12px);
    border-block-end: 1px solid var(--border-subtle);
    animation: header-settle linear both;
    animation-timeline: scroll(root);
    animation-range: 0px 120px;
  }

  @keyframes header-settle {
    from { border-color: transparent; }
    to { border-color: var(--border-subtle); }
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: var(--space-4);
    gap: var(--space-4);
  }

  .header-left,
  .header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .header-logo {
    font-family: var(--font-body);
    font-size: var(--text-h3);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .header-logo a {
    color: var(--text-primary);
  }

  /* ── Main ── */

  main {
    min-block-size: 60svh;
  }

  /* ── Footer ── */

  /* ── Newsletter band ── */

  .footer-newsletter {
    margin-block-start: var(--space-16);
    padding-block: var(--space-10);
    background: var(--surface-2);
    border-block: 1px solid var(--border-subtle);
  }

  .newsletter-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);

    @media (width < 768px) {
      flex-direction: column;
      text-align: center;
    }
  }

  .newsletter-heading {
    font-family: var(--font-display);
    font-size: var(--text-h2);
    font-weight: 400;
    line-height: 1.1;
    margin-block-end: var(--space-2);
  }

  .newsletter-sub {
    color: var(--text-secondary);
    font-size: var(--text-sm);
  }

  .newsletter-form {
    display: flex;
    gap: var(--space-2);
    flex-shrink: 0;

    @media (width < 480px) {
      flex-direction: column;
      inline-size: 100%;
    }
  }

  .newsletter-input {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--border-visible);
    border-radius: var(--radius-md);
    background: var(--surface-1);
    min-inline-size: 260px;
    font-size: var(--text-sm);

    &:focus-visible {
      border-color: var(--text-primary);
      outline: 2px solid var(--border-focus, var(--text-primary));
      outline-offset: 2px;
    }

    @media (width < 480px) {
      min-inline-size: unset;
    }
  }

  .newsletter-btn {
    padding: var(--space-3) var(--space-5);
    background: var(--color-action);
    color: var(--color-action-text);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.02em;
    white-space: nowrap;
    transition: background var(--duration-fast) var(--ease-default);

    &:hover { background: var(--color-action-hover); }
  }

  /* ── Footer ── */

  .site-footer {
    padding-block: var(--space-12) var(--space-8);
    background: var(--surface-0);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: var(--space-8) var(--space-6);

    @media (width < 768px) {
      grid-template-columns: 1fr 1fr;
      gap: var(--space-6);
    }

    @media (width < 480px) {
      grid-template-columns: 1fr;
    }
  }

  .footer-brand-col {
    @media (width < 768px) {
      grid-column: 1 / -1;
      text-align: center;
      margin-block-end: var(--space-4);
      padding-block-end: var(--space-6);
      border-block-end: 1px solid var(--border-subtle);
    }
  }

  .footer-statement {
    @media (width < 768px) {
      max-inline-size: none;
      margin-inline: auto;
    }
  }

  .footer-social {
    @media (width < 768px) {
      justify-content: center;
    }
  }

  .footer-wordmark {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-h2);
    font-weight: 300;
    letter-spacing: -0.01em;
    margin-block-end: var(--space-3);
  }

  .footer-statement {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    max-inline-size: 24ch;
    line-height: 1.5;
    margin-block-end: var(--space-5);
  }

  .footer-social {
    display: flex;
    gap: var(--space-4);
  }

  .footer-social a {
    color: var(--text-tertiary);
    transition: color var(--duration-fast) var(--ease-default);
    &:hover { color: var(--text-primary); }
  }

  /* Footer accordion — open on desktop, collapsible on mobile */
  .footer-section {
    @media (width < 768px) {
      border-block-end: 1px solid var(--border-subtle);
      padding-block: var(--space-3);

      & > summary {
        cursor: pointer;
        list-style: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-block: var(--space-2);
        &::marker, &::-webkit-details-marker { display: none; }
        &::after {
          content: '+';
          font-size: var(--text-body);
          color: var(--text-tertiary);
        }
      }
      &[open] > summary::after {
        content: '\2212';
      }
    }

    @media (width >= 768px) {
      &::details-content {
        content-visibility: visible;
        opacity: 1;
        height: auto;
        overflow: visible;
      }
      & > summary {
        list-style: none;
        pointer-events: none;
        &::marker, &::-webkit-details-marker { display: none; }
      }
    }
  }

  .footer-heading {
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    margin-block-end: var(--space-4);

    @media (width < 768px) {
      font-size: var(--text-sm);
      color: var(--text-primary);
      margin-block-end: 0;
    }
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
  }

  .footer-links a {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    transition: color var(--duration-fast) var(--ease-default);
    &:hover { color: var(--text-primary); }

    @media (width < 768px) {
      padding-block: var(--space-1);
    }
  }

  .footer-trust {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);

    @media (width < 768px) {
      gap: var(--space-4);
    }
  }

  .footer-trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-secondary);
  }

  .footer-trust-item svg {
    flex-shrink: 0;
    color: var(--text-tertiary);
  }

  .footer-bottom {
    margin-block-start: var(--space-10);
    padding-block-start: var(--space-6);
    border-block-start: 1px solid var(--border-subtle);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: space-between;
    align-items: center;
  }

  .footer-bottom-links {
    display: flex;
    gap: var(--space-4);
  }

  .footer-bottom-links a {
    color: var(--text-tertiary);
    transition: color var(--duration-fast) var(--ease-default);
    &:hover { color: var(--text-secondary); }
  }

  /* ── Product grid ── */

  .product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);

    @media (width < 1024px) {
      grid-template-columns: repeat(3, 1fr);
    }

    @media (width < 768px) {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  /* ── Section spacing ── */

  .section {
    padding-block: var(--space-12);
  }

  .section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-block-end: var(--space-6);
    gap: var(--space-4);
  }

  .section-title {
    font-family: var(--font-display);
    font-size: var(--text-h1);
    font-weight: 400;
    line-height: 1.1;
  }

  .section-link {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    white-space: nowrap;
    transition: color var(--duration-fast) var(--ease-default);

    &:hover { color: var(--text-primary); }
  }

  /* ── PDP layout ── */

  .pdp-layout {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: var(--space-8);

    @media (width < 1024px) {
      grid-template-columns: 1fr;
      gap: var(--space-6);
    }
  }

  .pdp-images {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
  }

  .pdp-info {
    @media (width >= 1024px) {
      position: sticky;
      inset-block-start: calc(52px + var(--space-6));
      align-self: start;
      max-block-size: calc(100svh - 52px - var(--space-6) * 2);
      overflow-y: auto;
    }
  }

  /* ── Checkout layout ── */

  .checkout-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-8);

    @media (width < 1024px) {
      grid-template-columns: 1fr;
    }
  }

  /* ── Hero ── */

  .hero {
    padding-block: var(--space-16) var(--space-12);
    text-align: center;
  }

  .hero-title {
    font-family: var(--font-display);
    font-size: var(--text-display);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -0.01em;
    text-wrap: balance;
    margin-block-end: var(--space-5);
  }

  .hero-subtitle {
    font-size: var(--text-h3);
    color: var(--text-secondary);
    max-inline-size: 50ch;
    margin-inline: auto;
    margin-block-end: var(--space-8);
  }

  /* ── Category bento ── */

  .category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: var(--space-4);

    @media (width < 768px) {
      grid-template-columns: 1fr 1fr;
    }

    @media (width < 480px) {
      grid-template-columns: 1fr;
    }
  }

  .category-tile--featured {
    grid-row: span 2;
  }

  /* ── Horizontal scroll ── */

  .scroll-row {
    display: flex;
    gap: var(--space-4);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    padding-block-end: var(--space-2);

    &::-webkit-scrollbar { display: none; }
  }

  .scroll-row > * {
    flex: 0 0 min(260px, 70vw);
    scroll-snap-align: start;
  }
}

/* ─── COMPONENTS ─── */

@layer components {

  /* ── Product card ── */

  .product-card {
    display: block;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--surface-1);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--duration-normal) var(--ease-default);

    &:hover {
      box-shadow: var(--shadow-md);
    }

    animation: reveal-up linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 20%;
  }

  @keyframes reveal-up {
    from { opacity: 0; translate: 0 20px; }
    to { opacity: 1; translate: 0 0; }
  }

  .product-card__images {
    position: relative;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: oklch(96% 0 0);
  }

  .product-card__img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
    transition: opacity var(--duration-slow) var(--ease-default);
  }

  .product-card__img--secondary {
    position: absolute;
    inset: 0;
    opacity: 0;
  }

  .product-card:hover .product-card__img--secondary {
    opacity: 1;
  }

  .product-card__images:has(.product-card__img--secondary):hover .product-card__img--primary {
    opacity: 0;
  }

  .product-card__info {
    padding: var(--space-4);
  }

  .product-card__name {
    font-size: var(--text-sm);
    font-weight: 400;
    line-height: 1.3;
    margin-block-end: var(--space-1);
  }

  .product-card__brand {
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-block-end: var(--space-2);
  }

  .product-card__price {
    font-size: var(--text-price);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
  }

  .product-card__price--original {
    color: var(--text-tertiary);
    text-decoration: line-through;
    margin-inline-end: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 400;
  }

  .product-card__price--sale {
    color: var(--color-sale);
  }

  /* ── Badge ── */

  .badge {
    display: inline-block;
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    line-height: 1;
  }

  .badge--sale {
    background: var(--color-sale);
    color: var(--text-inverse);
  }

  .badge--new {
    background: var(--text-primary);
    color: var(--text-inverse);
  }

  .badge--soldout {
    background: transparent;
    border: 1px solid var(--border-visible);
    color: var(--text-secondary);
  }

  .badge--unique {
    background: oklch(92% 0.02 80);
    color: var(--text-secondary);
  }

  .product-card__badge {
    position: absolute;
    inset-block-start: var(--space-3);
    inset-inline-start: var(--space-3);
    z-index: 1;
  }

  /* ── Category tile ── */

  .category-tile {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 3 / 4;
    background: var(--surface-2);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--duration-normal) var(--ease-default);

    &:hover {
      box-shadow: var(--shadow-md);
    }
  }

  .category-tile__img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
    transition: scale var(--duration-slow) var(--ease-default);
  }

  .category-tile:hover .category-tile__img {
    scale: 1.03;
  }

  .category-tile__label {
    position: absolute;
    inset-block-end: 0;
    inset-inline: 0;
    padding: var(--space-6) var(--space-5);
    background: linear-gradient(to top, oklch(15% 0.01 80 / 0.65), transparent);
    color: oklch(97% 0 0);
    font-family: var(--font-display);
    font-size: var(--text-h2);
    font-weight: 400;
  }

  /* ── Buttons ── */

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-default);
    min-block-size: 44px;
  }

  .btn--primary {
    background: var(--color-action);
    color: var(--color-action-text);

    &:hover { background: var(--color-action-hover); }
  }

  .btn--secondary {
    background: transparent;
    border: 1px solid var(--border-visible);
    color: var(--text-primary);

    &:hover {
      background: var(--surface-2);
      border-color: var(--text-primary);
    }
  }

  .btn--ghost {
    background: transparent;
    color: var(--text-secondary);
    padding-inline: var(--space-2);

    &:hover {
      color: var(--text-primary);
      text-decoration: underline;
    }
  }

  .btn--full {
    inline-size: 100%;
  }

  .btn--icon {
    padding: var(--space-2);
    border-radius: var(--radius-full);
    min-block-size: 44px;
    min-inline-size: 44px;
  }

  /* ── Form inputs ── */

  .input {
    display: block;
    inline-size: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--surface-input);
    border: 1px solid var(--border-visible);
    border-radius: var(--radius-sm);
    font-size: var(--text-body);
    transition: border-color var(--duration-fast) var(--ease-default);

    &::placeholder { color: var(--text-tertiary); }
    &:focus-visible {
      border-color: var(--border-focus);
      outline: 2px solid var(--border-focus);
      outline-offset: 2px;
    }
    &:user-invalid { border-color: var(--color-error); }
    &:user-valid { border-color: var(--color-success); }
  }

  .label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    margin-block-end: var(--space-2);
    color: var(--text-primary);
  }

  .field {
    margin-block-end: var(--space-4);
  }

  .field-error {
    font-size: var(--text-xs);
    color: var(--color-error);
    margin-block-start: var(--space-1);
    display: none;
  }

  input:user-invalid + .field-error,
  .field--error .field-error {
    display: block;
  }

  .field--error .input {
    border-color: var(--color-error);
  }

  /* ── Size pills ── */

  .size-pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .size-pill {
    position: relative;
    min-inline-size: 44px;
    min-block-size: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding-inline: var(--space-4);
    border: 1px solid var(--border-visible);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-default);

    & input {
      position: absolute;
      inline-size: 100%;
      block-size: 100%;
      inset: 0;
      margin: 0;
      opacity: 0;
      cursor: pointer;
    }

    &:has(input:checked) {
      background: var(--text-primary);
      color: var(--text-inverse);
      border-color: var(--text-primary);
    }

    &:has(input:focus-visible) {
      outline: 2px solid var(--border-focus, var(--text-primary));
      outline-offset: 3px;
    }

    &:has(input:disabled) {
      opacity: 0.3;
      text-decoration: line-through;
      cursor: not-allowed;
    }
  }

  /* ── Color swatches ── */

  .color-swatches {
    display: flex;
    gap: var(--space-3);
  }

  .color-swatch {
    inline-size: 28px;
    block-size: 28px;
    border-radius: var(--radius-full);
    border: 1px solid oklch(0% 0 0 / 0.1);
    cursor: pointer;
    transition: outline var(--duration-fast) var(--ease-default);

    & input {
      position: absolute;
      inline-size: 100%;
      block-size: 100%;
      inset: 0;
      margin: 0;
      opacity: 0;
      cursor: pointer;
    }

    &:has(input:checked) {
      outline: 2px solid var(--text-primary);
      outline-offset: 3px;
    }

    &:has(input:focus-visible) {
      outline: 2px solid var(--border-focus, var(--text-primary));
      outline-offset: 3px;
    }
  }

  /* ── Product accordions ── */

  .product-details {
    border-block-start: 1px solid var(--border-subtle);
    margin-block-start: var(--space-6);
  }

  .product-details details {
    border-block-end: 1px solid var(--border-subtle);
  }

  .product-details summary {
    padding-block: var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    list-style: none;

    &::after {
      content: '+';
      font-size: 1.25em;
      color: var(--text-secondary);
      transition: transform var(--duration-fast);
    }

    &::-webkit-details-marker { display: none; }
  }


  .product-details details > div {
    padding-block-end: var(--space-4);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.6;
  }

  /* ── Cart toast (fires after add-to-cart on PDP) ── */

  .cart-toast {
    position: fixed;
    inset-inline: 0;
    inset-block-end: calc(env(safe-area-inset-bottom, 0px) + var(--space-5));
    z-index: 100;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    inline-size: fit-content;
    max-inline-size: calc(100% - var(--space-5) * 2);
    margin-inline: auto;
    padding: var(--space-3) var(--space-5);
    background: var(--color-action);
    color: var(--color-action-text);
    border-radius: var(--radius-full);
    box-shadow: 0 10px 30px oklch(0% 0 0 / 0.25),
                0 3px 8px oklch(0% 0 0 / 0.12);
    font-size: var(--text-sm);
    font-weight: 500;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 220ms var(--ease-out), transform 220ms var(--ease-out);
    pointer-events: auto;
  }

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

  .cart-toast__check {
    display: inline-grid;
    place-items: center;
    inline-size: 20px;
    block-size: 20px;
    border-radius: 50%;
    background: var(--color-success);
    color: var(--color-action-text);
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
  }

  .cart-toast__msg { flex-shrink: 0; }

  .cart-toast__link {
    color: inherit;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
    padding-inline-start: var(--space-2);
    border-inline-start: 1px solid oklch(100% 0 0 / 0.25);
  }

  /* ── "Agregado ✓" button state ── */
  .btn.btn--added {
    background: var(--color-success);
    color: var(--color-action-text);
    border-color: var(--color-success);
    pointer-events: none;
  }

  /* ── Cart item ── */

  .cart-added-banner {
    display: flex; align-items: center; gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    background: color-mix(in oklch, var(--color-success) 10%, var(--surface-1));
    color: var(--color-success);
    border: 1px solid color-mix(in oklch, var(--color-success) 35%, transparent);
    border-radius: var(--radius-md);
    font-size: var(--text-sm); font-weight: 500;
    margin-block-end: var(--space-5);
    animation: cart-added-pop 420ms var(--ease-spring);
  }

  @keyframes cart-added-pop {
    from { transform: translateY(-6px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
  }

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

  .cart-item {
    display: grid;
    grid-template-columns: 80px 1fr auto;
    gap: var(--space-4);
    padding-block: var(--space-4);
    border-block-end: 1px solid var(--border-subtle);
    align-items: start;
  }

  .cart-item__img {
    border-radius: var(--radius-sm);
    aspect-ratio: 1;
    object-fit: cover;
  }

  .cart-item__name {
    font-size: var(--text-sm);
    font-weight: 400;
    margin-block-end: var(--space-1);
  }

  .cart-item__variant {
    font-size: var(--text-xs);
    color: var(--text-secondary);
  }

  .cart-item__price {
    font-size: var(--text-sm);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
    text-align: end;
  }

  /* ── Quantity stepper ── */

  .qty-stepper {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--border-visible);
    border-radius: var(--radius-md);

    & button {
      inline-size: 36px;
      block-size: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.125rem;

      &:hover { background: var(--surface-2); }
    }

    & input {
      inline-size: 40px;
      block-size: 36px;
      text-align: center;
      border: none;
      border-inline: 1px solid var(--border-subtle);
      background: transparent;
      font-variant-numeric: tabular-nums;
      -moz-appearance: textfield;
      &::-webkit-outer-spin-button,
      &::-webkit-inner-spin-button { -webkit-appearance: none; }
    }
  }

  /* ── Navigation overlay ── */

  .nav-overlay {
    position: fixed;
    inset: 0;
    background: var(--surface-1);
    z-index: 100;
    padding: var(--space-8);
    overflow-y: auto;

    transition: opacity var(--duration-normal) var(--ease-default),
                display var(--duration-normal) allow-discrete;
    opacity: 1;

    @starting-style { opacity: 0; }
    &:not(:popover-open) { opacity: 0; }
  }

  .nav-overlay__close {
    position: absolute;
    inset-block-start: var(--space-4);
    inset-inline-end: var(--space-4);
  }

  .nav-overlay__section {
    margin-block-end: var(--space-6);
  }

  .nav-overlay__heading {
    font-family: var(--font-display);
    font-size: var(--text-h2);
    font-weight: 400;
    margin-block-end: var(--space-4);
    color: var(--text-primary);
  }

  .nav-overlay__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding-inline-start: var(--space-4);
  }

  .nav-overlay__link {
    font-size: var(--text-body);
    color: var(--text-secondary);
    transition: color var(--duration-fast);

    &:hover { color: var(--text-primary); }
  }

  /* ── Cart drawer ── */

  /* ── Cart Drawer — refined boutique panel ── */

  .cart-drawer {
    position: fixed;
    inset-block: 0;
    inset-inline-start: auto;
    inset-inline-end: 0;
    inline-size: min(440px, 100vw);
    max-inline-size: none;
    max-block-size: none;
    block-size: 100%;
    margin: 0;
    background: var(--surface-1);
    border: none;
    border-inline-start: 1px solid var(--border-subtle);
    padding: 0;
    box-shadow: -8px 0 40px oklch(0% 0 0 / 0.08), -2px 0 8px oklch(0% 0 0 / 0.03);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    z-index: 100;

    transition: translate var(--duration-normal) var(--ease-out),
                display var(--duration-normal) allow-discrete;
    translate: 0 0;

    @starting-style { translate: 100% 0; }
    &:not([open]) { translate: 100% 0; }
  }

  .cart-drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-5) var(--space-6);
    border-block-end: 1px solid var(--border-subtle);
    background: var(--surface-1);
    flex-shrink: 0;
  }

  .cart-drawer-title {
    font-family: var(--font-display);
    font-size: clamp(1.125rem, 1.5vw, 1.375rem);
    font-weight: 300;
    letter-spacing: 0.01em;
    color: var(--text-primary);
  }

  .cart-drawer-header button {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    transition: color 0.15s, background 0.15s;

    &:hover {
      color: var(--text-primary);
      background: var(--surface-2);
    }
  }

  .cart-drawer-body {
    padding: var(--space-4) var(--space-6);
    flex: 1;
    overflow-y: auto;
    overscroll-behavior: contain;

    /* Elegant thin scrollbar */
    scrollbar-width: thin;
    scrollbar-color: var(--border-visible) transparent;
  }

  .cart-drawer-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-block-size: 300px;
    gap: var(--space-3);

    & svg {
      opacity: 0.35;
    }

    & p {
      color: var(--text-tertiary);
      font-size: var(--text-sm);
      letter-spacing: 0.02em;
    }

    & a {
      margin-block-start: var(--space-4);
      font-size: var(--text-sm);
    }
  }

  .cart-drawer-items {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .cart-drawer-item {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: var(--space-4);
    padding-block: var(--space-5);
    align-items: start;

    &:not(:last-child) {
      border-block-end: 1px solid oklch(90% 0.003 80);
    }

    & img {
      inline-size: 72px;
      block-size: 90px;
      object-fit: cover;
      border-radius: var(--radius-md);
      background: var(--surface-2);
      transition: opacity 0.2s;
    }

    & a:hover img {
      opacity: 0.85;
    }
  }

  .cart-drawer-item-img {
    display: block;
    text-decoration: none;
    border-radius: var(--radius-md);
    overflow: hidden;
  }

  .cart-drawer-item-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding-block-start: 0.125rem;
  }

  .cart-drawer-item-name {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    line-height: 1.35;
    letter-spacing: 0.005em;
    transition: color 0.15s;

    &:hover {
      color: var(--text-secondary);
    }
  }

  .cart-drawer-item-price {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    margin-block-start: 0.125rem;
  }

  .cart-drawer-item-qty {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    letter-spacing: 0.03em;
  }

  .cart-drawer-actions {
    padding: var(--space-5) var(--space-6);
    background: var(--surface-1);
    border-block-start: 1px solid var(--border-subtle);
    flex-shrink: 0;

    & .btn-primary,
    & .btn.btn-primary {
      display: block;
      inline-size: 100%;
      padding: var(--space-4);
      background: var(--color-action);
      color: var(--color-action-text);
      font-family: var(--font-body);
      font-size: var(--text-sm);
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      text-align: center;
      text-decoration: none;
      border-radius: var(--radius-md);
      transition: background 0.2s, transform 0.1s;

      &:hover {
        background: var(--color-action-hover);
      }

      &:active {
        transform: scale(0.985);
      }
    }
  }

  .cart-drawer-scrim {
    position: fixed;
    inset: 0;
    background: oklch(0% 0 0 / 0.35);
    backdrop-filter: blur(2px);
    z-index: 99;

    transition: opacity var(--duration-normal) var(--ease-default),
                display var(--duration-normal) allow-discrete;
    opacity: 1;

    @starting-style { opacity: 0; }

    &[hidden] {
      opacity: 0;
      display: none;
    }
  }

  /* ── Page header (category/search) ── */

  .page-header {
    padding-block: var(--space-8) var(--space-6);
  }

  .page-title {
    font-family: var(--font-display);
    font-size: var(--text-h1);
    font-weight: 400;
    line-height: 1.1;
    margin-block-end: var(--space-2);
  }

  .page-subtitle {
    font-size: var(--text-sm);
    color: var(--text-secondary);
  }

  /* ── Stock indicator ── */

  .stock-low {
    font-size: var(--text-xs);
    color: var(--color-warning);
    font-weight: 500;
  }

  .stock-out {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-weight: 500;
  }

  .stock-unique {
    font-size: var(--text-xs);
    color: var(--text-secondary);
  }

  /* ── Breadcrumb ── */

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    padding-block: var(--space-3);
  }

  .breadcrumb a {
    color: var(--text-secondary);
    &:hover { color: var(--text-primary); }
  }

  .breadcrumb__separator {
    color: var(--text-tertiary);
  }

  /* ── Checkout steps ── */

  .checkout-step summary {
    padding: var(--space-4);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    border-block-end: 1px solid var(--border-subtle);
    list-style: none;
    &::-webkit-details-marker { display: none; }
  }

  .checkout-step__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    inline-size: 28px;
    block-size: 28px;
    border-radius: var(--radius-full);
    background: var(--surface-2);
    font-size: var(--text-xs);
    font-weight: 600;
  }

  .checkout-step[open] .checkout-step__number {
    background: var(--text-primary);
    color: var(--text-inverse);
  }

  .checkout-step__content {
    padding: var(--space-5);
  }

  /* ── Order summary sidebar ── */

  .order-summary {
    background: var(--surface-1);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-5);
    position: sticky;
    inset-block-start: calc(52px + var(--space-6));
  }

  .order-summary__row {
    display: flex;
    justify-content: space-between;
    padding-block: var(--space-2);
    font-size: var(--text-sm);
  }

  .order-summary__total {
    font-weight: 600;
    font-size: var(--text-body);
    border-block-start: 1px solid var(--border-subtle);
    padding-block-start: var(--space-3);
    margin-block-start: var(--space-3);
  }

  /* ── Toast ── */

  .toast {
    position: fixed;
    inset-block-start: var(--space-5);
    inset-inline-end: var(--space-5);
    padding: var(--space-3) var(--space-5);
    background: var(--text-primary);
    color: var(--text-inverse);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: var(--text-sm);
    z-index: 200;

    transition: translate var(--duration-normal) var(--ease-out),
                opacity var(--duration-normal);
    translate: 0 0;
    opacity: 1;

    @starting-style {
      translate: 100% 0;
      opacity: 0;
    }

    &.removing {
      translate: 100% 0;
      opacity: 0;
    }
  }

  /* ── Empty state ── */

  .empty-state {
    text-align: center;
    padding-block: var(--space-12);
    color: var(--text-secondary);
  }

  .empty-state__title {
    font-size: var(--text-h2);
    margin-block-end: var(--space-4);
    color: var(--text-primary);
  }

  /* ── PDP specific ── */

  .pdp-image {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: oklch(96% 0 0);
  }

  .pdp-image img {
    inline-size: 100%;
    block-size: auto;
  }

  .pdp-product-name {
    font-family: var(--font-display);
    font-size: var(--text-h2);
    font-weight: 400;
    line-height: 1.2;
    margin-block-end: var(--space-2);
  }

  .pdp-brand {
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-block-end: var(--space-4);
  }

  .pdp-price {
    font-size: var(--text-h2);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
    margin-block-end: var(--space-6);
  }

  .pdp-size-label,
  .pdp-color-label {
    font-size: var(--text-sm);
    font-weight: 500;
    margin-block-end: var(--space-3);
  }

  .pdp-add-section {
    margin-block: var(--space-6);
  }

  /* ── Sticky mobile bar ── */

  .sticky-bar {
    display: none;

    @media (width < 1024px) {
      &.visible {
        display: flex;
        position: fixed;
        inset-inline: 0;
        inset-block-end: 0;
        padding: var(--space-3) var(--space-4);
        background: var(--surface-1);
        border-block-start: 1px solid var(--border-subtle);
        box-shadow: 0 -4px 12px oklch(0% 0 0 / 0.06);
        z-index: 40;
        align-items: center;
        justify-content: space-between;
        gap: var(--space-4);
      }
    }
  }

  .sticky-bar__price {
    font-weight: 500;
    font-variant-numeric: tabular-nums;
  }

  .sticky-bar .btn {
    flex: 1;
  }

  /* ── Mobile gallery ── */

  @media (width < 1024px) {
    .pdp-images {
      flex-direction: row;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      scrollbar-width: none;
      gap: var(--space-2);

      &::-webkit-scrollbar { display: none; }
    }

    .pdp-image {
      flex: 0 0 92%;
      scroll-snap-align: center;
    }
  }

  /* ── Skip link ── */

  .skip-link {
    position: absolute;
    inset-block-start: -100%;
    z-index: 200;
    background: var(--color-action);
    color: var(--color-action-text);
    padding: var(--space-3) var(--space-5);
    border-radius: 0 0 var(--radius-md) var(--radius-md);

    &:focus {
      inset-block-start: 0;
    }
  }

  /* ─── Shop layout — filter rail + product grid ─── */

  .shop {
    display: grid;
    gap: var(--space-5);
    margin-block-start: var(--space-5);

    @media (width >= 1024px) {
      grid-template-columns: 240px 1fr;
      gap: var(--space-8);
    }
  }

  .shop-results__bar {
    display: flex; align-items: baseline; justify-content: space-between;
    gap: var(--space-3);
    padding-block-end: var(--space-4);
    margin-block-end: var(--space-5);
    border-block-end: 1px solid var(--border-subtle);
    font-size: var(--text-sm); color: var(--text-secondary);

    & strong { color: var(--text-primary); font-weight: 500; }
  }

  .shop-results__sort-select {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--border-visible);
    border-radius: var(--radius-sm);
    background: var(--surface-1);
    font: inherit; font-size: var(--text-sm);
    cursor: pointer;

    @media (width < 1024px) { display: none; }
  }

  /* ─── Mobile controls (hidden on desktop) ─── */

  .shop-mobile {
    position: sticky;
    inset-block-start: 56px;
    z-index: 10;
    display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2);
    padding-block: var(--space-3);
    background: var(--surface-0);
    border-block: 1px solid var(--border-subtle);
    margin-block-end: var(--space-4);

    @media (width >= 1024px) { display: none; }
  }

  .shop-mobile__btn {
    padding: var(--space-3);
    border: 1px solid var(--border-visible);
    border-radius: var(--radius-sm);
    background: var(--surface-1);
    font: inherit; font-size: var(--text-sm); font-weight: 500;
    display: inline-flex; align-items: center; justify-content: center;
    gap: var(--space-2); cursor: pointer;

    &:hover { border-color: var(--border-focus); }
  }

  .shop-mobile__count {
    background: var(--color-action); color: var(--color-action-text);
    inline-size: 18px; block-size: 18px;
    border-radius: 50%;
    font-size: 0.625rem; font-weight: 600;
    display: inline-flex; align-items: center; justify-content: center;
  }

  /* ─── Filter dialog — bottom sheet on mobile, sticky rail on desktop ─── */

  .filter-dialog {
    border: 0; padding: 0;
    background: var(--surface-1);
    color: inherit;
    inline-size: 100%; max-inline-size: 100%;
    max-block-size: 92svh;
    margin-block: auto 0;
    margin-inline: 0;
    border-radius: 16px 16px 0 0;
    box-shadow: 0 -8px 24px oklch(0% 0 0 / 0.12);

    &[open] { animation: sheet-up 280ms var(--ease-out); }
    &::backdrop { background: oklch(0% 0 0 / 0.5); backdrop-filter: blur(4px); }

    @media (width >= 1024px) {
      display: block;
      position: sticky;
      inset-block-start: var(--space-5);
      block-size: fit-content;
      max-block-size: calc(100svh - var(--space-10));
      overflow-y: auto;
      margin: 0; inline-size: auto;
      padding-inline-end: var(--space-5);
      background: transparent;
      border-inline-end: 1px solid var(--border-subtle);
      border-radius: 0;
      box-shadow: none;
      animation: none;

      &::backdrop { display: none; }
    }
  }

  @keyframes sheet-up {
    from { transform: translateY(100%); }
    to   { transform: translateY(0); }
  }

  /* ─── Filter form internals ─── */

  .filters {
    display: flex; flex-direction: column;
    max-block-size: inherit;

    @media (width >= 1024px) { display: block; }
  }

  .filters__head {
    display: flex; align-items: center; justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-block-end: 1px solid var(--border-subtle);
    position: relative;

    @media (width >= 1024px) {
      padding: 0 0 var(--space-3);
    }

    &::before {
      content: "";
      position: absolute; inset-block-start: var(--space-2); inset-inline-start: 50%;
      transform: translateX(-50%);
      inline-size: 36px; block-size: 4px;
      border-radius: var(--radius-full);
      background: var(--border-visible);

      @media (width >= 1024px) { display: none; }
    }
  }

  .filters__title {
    font-family: var(--font-display); font-weight: 400;
    font-size: var(--text-h3);
  }

  .filters__clear {
    font: inherit; font-size: var(--text-xs); font-family: inherit;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--text-tertiary);
    text-decoration: underline; text-underline-offset: 3px;
    background: none; border: 0; padding: 0; cursor: pointer;

    &:hover { color: var(--text-primary); }
  }

  .filters__close {
    background: none; border: 0; cursor: pointer;
    font-size: 1.5rem; line-height: 1; color: var(--text-secondary);
    padding: 0; font-family: inherit;

    @media (width >= 1024px) { display: none; }
  }

  .filters__body {
    flex: 1; overflow-y: auto;
    padding: 0 var(--space-5);

    @media (width >= 1024px) { padding: 0; overflow: visible; }
  }

  .filters__chips {
    display: flex; flex-wrap: wrap; gap: var(--space-2);
    padding-block: var(--space-4);
    border-block-end: 1px solid var(--border-subtle);

    &:empty { display: none; }
  }

  .filters__chip {
    display: inline-flex; align-items: center; gap: var(--space-2);
    padding: 4px 10px;
    background: var(--color-action); color: var(--color-action-text);
    border-radius: var(--radius-full);
    font-size: 0.6875rem; letter-spacing: 0.05em; text-transform: uppercase;
    text-decoration: none;

    &::after { content: "×"; font-size: 0.9rem; line-height: 1; opacity: 0.75; }
    &:hover::after { opacity: 1; }
  }

  .filters__group {
    border-block-end: 1px solid var(--border-subtle);

    & summary {
      list-style: none;
      display: flex; align-items: center; justify-content: space-between;
      padding-block: var(--space-4);
      font-size: var(--text-xs); font-weight: 500;
      letter-spacing: 0.1em; text-transform: uppercase;
      cursor: pointer;

      &::-webkit-details-marker { display: none; }
      &::after {
        content: "+";
        font-size: 1.125rem; font-weight: 300; line-height: 1;
        color: var(--text-secondary);
      }
    }
    &[open] summary::after { content: "−"; }
  }

  .filters__group-body {
    padding-block-end: var(--space-4);
  }

  .filters__opt-list {
    display: grid; gap: var(--space-3);
  }

  .filters__opt {
    display: flex; align-items: center; justify-content: space-between;
    font-size: var(--text-sm);
    cursor: pointer;

    &:hover { color: var(--color-action); }

    & > span:first-child {
      display: flex; align-items: center; gap: var(--space-3);
    }
    & input[type="checkbox"] {
      inline-size: 14px; block-size: 14px;
      accent-color: var(--color-action);
    }
  }

  .filters__opt-count {
    font-size: var(--text-xs); color: var(--text-tertiary);
    font-variant-numeric: tabular-nums;
  }

  .filters__sizes {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-2);
  }

  .filters__size {
    position: relative;
    display: grid; place-items: center;
    padding-block: var(--space-3);
    border: 1px solid var(--border-visible);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm); font-weight: 500;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-default);

    & input { position: absolute; opacity: 0; pointer-events: none; }
    &:hover { border-color: var(--color-action); }
    &:has(input:checked) {
      background: var(--color-action);
      color: var(--color-action-text);
      border-color: var(--color-action);
    }
    &:has(input:disabled) {
      opacity: 0.35; cursor: not-allowed;
      text-decoration: line-through;
    }
  }

  .filters__price {
    display: flex; align-items: center; gap: var(--space-2);

    & input {
      flex: 1; min-inline-size: 0;
      padding: var(--space-2) var(--space-3);
      border: 1px solid var(--border-visible);
      background: var(--surface-1);
      border-radius: var(--radius-sm);
      font: inherit; font-size: var(--text-sm);
      font-variant-numeric: tabular-nums;

      &::placeholder { color: var(--text-tertiary); }
    }
    & span { color: var(--text-tertiary); font-size: var(--text-xs); }
  }

  .filters__toggle-row {
    display: flex; align-items: center; justify-content: space-between;
    padding-block: var(--space-4);
    border-block-end: 1px solid var(--border-subtle);
    font-size: var(--text-sm);
    cursor: pointer;

    & input { position: absolute; opacity: 0; pointer-events: none; }
  }

  .filters__switch {
    inline-size: 36px; block-size: 20px;
    background: var(--border-visible);
    border-radius: var(--radius-full);
    position: relative;
    transition: background var(--duration-normal) var(--ease-default);

    &::after {
      content: "";
      position: absolute;
      inset-block-start: 2px; inset-inline-start: 2px;
      inline-size: 16px; block-size: 16px;
      background: var(--surface-1); border-radius: 50%;
      transition: transform var(--duration-normal) var(--ease-default);
    }
    .filters__toggle-row:has(input:checked) & { background: var(--color-action); }
    .filters__toggle-row:has(input:checked) &::after { transform: translateX(16px); }
  }

  .filters__foot {
    display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-block-start: 1px solid var(--border-subtle);
    background: var(--surface-1);

    @media (width >= 1024px) { display: none; }
  }
}

/* ─── UTILITIES ─── */

@layer utilities {
  .sr-only {
    position: absolute;
    inline-size: 1px;
    block-size: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .text-balance { text-wrap: balance; }
  .tabular-nums { font-variant-numeric: tabular-nums; }
  .truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  /* Visible "*" next to required-field labels. Paired with a sibling
     .sr-only span that reads "(requerido)" to screen readers — the
     combination gives sighted users a visual cue and AT users the
     semantic marker. */
  .required-marker {
    color: var(--color-danger, #c43a20);
    margin-inline-start: 0.15rem;
    font-weight: 600;
    user-select: none;
  }

  /* ── Floating WhatsApp button ── */
  .wa-float {
    position: fixed;
    inset-block-end: var(--space-6);
    inset-inline-end: var(--space-6);
    z-index: 900;
    display: grid;
    place-items: center;
    inline-size: 3.25rem;
    block-size: 3.25rem;
    border-radius: 50%;
    background: #25d366;
    color: #fff;
    box-shadow: 0 4px 16px oklch(0% 0 0 / 0.18);
    transition: transform var(--duration-fast) var(--ease-default),
                box-shadow var(--duration-fast) var(--ease-default);

    &:hover {
      transform: scale(1.08);
      box-shadow: 0 6px 24px oklch(0% 0 0 / 0.24);
    }

    @media (prefers-reduced-motion: reduce) {
      transition: none;
    }
  }
}

/* ─── View transitions (progressive) ─── */
@supports (view-transition-name: test) {
  @view-transition { navigation: auto; }

  /* view-transition-name for product images requires unique names per
     element — listing pages have 100+ cards sharing the same name,
     which triggers a runtime error. Removed until per-product unique
     names can be generated server-side. */
}

/* ─── Account pages ─── */
.account-page {
  max-inline-size: 640px;
  margin-inline: auto;
}

.account-grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .account-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }
}

.account-section__title {
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-block-end: var(--space-5);
}

.account-flash {
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  margin-block-end: var(--space-6);
  font-size: var(--text-sm);
}

.account-flash--success {
  background: oklch(95% 0.02 145);
  border: 1px solid oklch(80% 0.1 145);
  color: oklch(35% 0.1 145);
}

.account-flash--error {
  background: oklch(95% 0.02 25);
  border: 1px solid oklch(80% 0.1 25);
  color: oklch(35% 0.1 25);
}

.account-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.account-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--text-primary);
  text-decoration: none;
  transition: background 0.15s;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  text-align: start;
  inline-size: 100%;
}

.account-link:hover {
  background: var(--surface-1);
}

.account-link--logout {
  color: var(--text-secondary);
}

.account-link--logout:hover {
  color: oklch(55% 0.15 25);
}

/* Orders list */
.orders-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.order-card {
  display: block;
  background: var(--surface-1);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5) var(--space-6);
  text-decoration: none;
  color: var(--text-primary);
  transition: box-shadow 0.15s;
}

.order-card:hover {
  box-shadow: var(--shadow-md);
}

.order-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-block-end: var(--space-2);
}

.order-card__number {
  font-weight: 500;
  font-size: var(--text-sm);
}

.order-card__status {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
  background: var(--surface-2);
  color: var(--text-secondary);
}

.order-card__total {
  font-size: var(--text-body);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
}