/* ============================================================
   InventaFactory — Design System (Fase 2)
   Ver DESIGN_SYSTEM.md del brief para la especificacion completa.
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
    /* Color */
    --color-ink: #1B1B18;
    --color-warm-white: #FAF9F6;
    --color-canvas: #F3F0E9;
    --color-soft-stone: #E7E2D8;
    --color-border: #D8D2C6;
    --color-muted: #6D6B64;
    --color-terracotta: #B76E4F;
    --color-terracotta-dark: #95553D;
    --color-sage: #A6A78F;
    --color-success: #35634B;
    --color-error: #9B3A3A;

    /* Tipografia */
    --font-ui: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Manrope', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --fs-h1-hero: clamp(2.5rem, 1.9rem + 2.5vw, 4.5rem);
    --fs-h1-producto: clamp(1.875rem, 1.6rem + 1.2vw, 3rem);
    --fs-h2: clamp(1.625rem, 1.45rem + 0.8vw, 2.5rem);
    --fs-h3: clamp(1.25rem, 1.15rem + 0.4vw, 1.75rem);
    --fs-body: clamp(1rem, 0.96rem + 0.15vw, 1.125rem);
    --fs-small: 0.875rem;

    /* Espaciado (base 4/8px) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    --gutter: clamp(1rem, 4vw, 4rem);
    --content-max: 1280px;

    /* Bordes y radios */
    --radius-ui: 12px;
    --radius-card: 20px;
    --border-thin: 1px solid var(--color-border);

    /* Sombra, muy suave */
    --shadow-soft: 0 4px 16px rgba(27, 27, 24, 0.06);

    /* Movimiento */
    --transition-fast: 160ms ease;
}

/* ---------- Reset y anti-overflow ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    max-width: 100%;
    overflow-x: hidden; /* respaldo visual, no sustituye corregir la causa */
}

body {
    margin: 0;
    font-family: var(--font-ui);
    font-weight: 400;
    font-size: var(--fs-body);
    line-height: 1.6;
    color: var(--color-ink);
    background-color: var(--color-warm-white);
}

img,
picture,
video,
svg {
    max-width: 100%;
    height: auto;
    display: block;
}

input,
select,
textarea,
button {
    max-width: 100%;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

p,
h1, h2, h3, h4,
ul, ol {
    overflow-wrap: anywhere;
}

a {
    color: inherit;
}

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.1;
    margin: 0 0 var(--space-4);
}

h1 { font-size: var(--fs-h1-hero); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p {
    margin: 0 0 var(--space-4);
}

small,
.text-small {
    font-size: var(--fs-small);
}

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

/* ---------- Utilidades ---------- */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -48px;
    left: var(--space-4);
    z-index: 1000;
    background: var(--color-ink);
    color: var(--color-warm-white);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-ui);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-4);
}

/* ---------- Layout primitives ---------- */
.container {
    width: 100%;
    max-width: var(--content-max);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.stack {
    display: flex;
    flex-direction: column;
}

.grid {
    display: grid;
    gap: var(--space-6);
    min-width: 0;
}

.grid > * {
    min-width: 0;
}

.section {
    padding-block: var(--space-16);
}

/* ---------- Botones ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 44px;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-ui);
    border: var(--border-thin);
    font-weight: 600;
    font-size: var(--fs-small);
    text-decoration: none;
    cursor: pointer;
    background: transparent;
    transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
    max-width: 100%;
}

.btn-primary {
    background: var(--color-ink);
    color: var(--color-warm-white);
    border-color: var(--color-ink);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: #000;
    border-color: #000;
}

.btn-secondary {
    background: var(--color-warm-white);
    color: var(--color-ink);
    border-color: var(--color-border);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    border-color: var(--color-ink);
}

.btn-ghost {
    border-color: transparent;
    padding-inline: var(--space-3);
}

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

/* ---------- Formularios ---------- */
.field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    max-width: 100%;
}

.field label {
    font-size: var(--fs-small);
    font-weight: 500;
}

.field input,
.field select,
.field textarea {
    width: 100%;
    min-height: 44px;
    padding: var(--space-2) var(--space-3);
    border: var(--border-thin);
    border-radius: var(--radius-ui);
    background: var(--color-warm-white);
}

.field-error {
    color: var(--color-error);
    font-size: var(--fs-small);
}

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

/* ---------- Cards ---------- */
.card {
    background: var(--color-warm-white);
    border: var(--border-thin);
    border-radius: var(--radius-card);
    padding: var(--space-6);
    min-width: 0;
}

.card-soft {
    background: var(--color-soft-stone);
    border-color: transparent;
}

.product-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    min-width: 0;
}

.product-card__media {
    aspect-ratio: 4 / 5;
    border-radius: var(--radius-card);
    overflow: hidden;
    background: var(--color-soft-stone);
}

.product-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card__name {
    font-weight: 500;
    margin: 0;
}

.product-card__price {
    color: var(--color-muted);
    margin: 0;
}

.category-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    min-width: 0;
    text-decoration: none;
    color: inherit;
}

.category-card__media {
    aspect-ratio: 4 / 5;
    border-radius: var(--radius-card);
    overflow: hidden;
    background: var(--color-soft-stone);
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.category-card__name {
    font-weight: 500;
    margin: 0;
}

/* ---------- Swatches de color ---------- */
.swatch-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.swatch {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 4px;
    border-radius: 999px;
    border: 2px solid transparent;
    cursor: pointer;
}

.swatch__dot {
    width: 100%;
    height: 100%;
    border-radius: 999px;
    border: var(--border-thin);
}

.swatch[aria-pressed="true"] {
    border-color: var(--color-ink);
}

/* ---------- Header ---------- */
.site-header {
    border-bottom: var(--border-thin);
    background: var(--color-warm-white);
    position: relative;
    z-index: 100;
}

.site-header__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    min-height: 72px;
}

.site-header__logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: 0.02em;
    text-decoration: none;
    white-space: nowrap;
    min-width: 0;
}

.site-header__mark {
    height: 40px;
    width: 40px;
    flex: 0 0 auto;
}

.site-header__nav {
    display: none;
}

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

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-ui);
    border: none;
    background: transparent;
    cursor: pointer;
    text-decoration: none;
    color: var(--color-ink);
    position: relative;
}

.icon-btn:hover,
.icon-btn:focus-visible {
    background: var(--color-soft-stone);
}

.cart-count {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 16px;
    height: 16px;
    padding: 0 3px;
    border-radius: 999px;
    background: var(--color-terracotta);
    color: var(--color-warm-white);
    font-size: 10px;
    line-height: 16px;
    text-align: center;
}

.menu-toggle {
    display: inline-flex;
}

/* Desplegable "Tienda -> categorias" (escritorio) */
.nav-dropdown {
    position: relative;
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-dropdown__trigger {
    all: unset;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    cursor: pointer;
    color: inherit;
}

.nav-dropdown__trigger svg {
    transition: transform var(--transition-fast);
}

.nav-dropdown[data-open="true"] .nav-dropdown__trigger svg {
    transform: rotate(180deg);
}

.nav-dropdown__panel {
    position: absolute;
    top: calc(100% + 14px);
    left: 0;
    min-width: 240px;
    background: var(--color-warm-white);
    border: var(--border-thin);
    border-radius: var(--radius-ui);
    box-shadow: 0 20px 32px -18px rgba(27, 27, 24, 0.25);
    padding: var(--space-2);
    opacity: 0;
    transform: translateY(-6px);
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    z-index: 10;
}

.nav-dropdown[data-open="true"] .nav-dropdown__panel {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.nav-dropdown__panel a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: 8px;
    color: var(--color-ink);
    text-decoration: none;
    font-size: var(--fs-small);
    font-weight: 500;
}

.nav-dropdown__panel a:hover,
.nav-dropdown__panel a:focus-visible {
    background: var(--color-soft-stone);
}

.nav-dropdown__all {
    font-weight: 600;
    color: var(--color-terracotta-dark);
}

.nav-dropdown__divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--space-1) var(--space-2);
}

.nav-dropdown__count {
    color: var(--color-muted);
    font-size: 0.75rem;
    font-variant-numeric: tabular-nums;
}

/* Acordeon "Tienda -> categorias" (menu movil) */
.nav-panel__item--accordion {
    border-bottom: var(--border-thin);
}

.nav-panel__row {
    display: flex;
    align-items: center;
}

.nav-panel__row a {
    flex: 1;
    border-bottom: none;
}

.nav-panel__toggle {
    all: unset;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-muted);
    cursor: pointer;
}

.nav-panel__toggle svg {
    transition: transform var(--transition-fast);
}

.nav-panel__item--accordion[data-open="true"] .nav-panel__toggle svg {
    transform: rotate(180deg);
}

.nav-panel__sublist {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--transition-fast);
}

.nav-panel__sublist > ul {
    overflow: hidden;
    list-style: none;
    margin: 0;
    padding: 0 0 var(--space-3) var(--space-4);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.nav-panel__item--accordion[data-open="true"] .nav-panel__sublist {
    grid-template-rows: 1fr;
}

.nav-panel__sublist li a {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-2) 0;
    border-bottom: none;
    font-weight: 400;
    color: var(--color-muted);
    text-decoration: none;
}

/* Panel de navegacion movil (off-canvas) */
.nav-panel {
    position: fixed;
    inset: 0 0 0 auto;
    width: 80%;
    max-width: 360px;
    background: var(--color-warm-white);
    border-left: var(--border-thin);
    padding: var(--space-6);
    transform: translateX(100%);
    transition: transform var(--transition-fast);
    z-index: 200;
    overflow-y: auto;
}

.nav-panel[data-open="true"] {
    transform: translateX(0);
}

.nav-panel__list {
    list-style: none;
    padding: 0;
    margin: var(--space-8) 0 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.nav-panel__list a {
    display: block;
    padding: var(--space-3) 0;
    text-decoration: none;
    font-weight: 500;
    border-bottom: var(--border-thin);
}

.nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(27, 27, 24, 0.4);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
    z-index: 150;
}

.nav-backdrop[data-open="true"] {
    opacity: 1;
    pointer-events: auto;
}

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-canvas);
    border-top: var(--border-thin);
    margin-top: var(--space-24);
}

.site-footer__grid {
    display: grid;
    gap: var(--space-8);
    padding-block: var(--space-16);
    grid-template-columns: 1fr;
}

.site-footer__heading {
    font-size: var(--fs-small);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-muted);
    margin-bottom: var(--space-3);
}

.site-footer__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.site-footer__list a {
    text-decoration: none;
}

.site-footer__list a:hover {
    color: var(--color-terracotta-dark);
}

.site-footer__bottom {
    border-top: var(--border-thin);
    padding-block: var(--space-4);
    font-size: var(--fs-small);
    color: var(--color-muted);
}

/* ---------- Sticky CTA movil (contenedor generico) ---------- */
.sticky-cta {
    position: sticky;
    bottom: 0;
    background: var(--color-warm-white);
    border-top: var(--border-thin);
    padding: var(--space-3) var(--gutter);
    padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom));
}

/* ============================================================
   Breakpoints (ver DESIGN_SYSTEM.md)
   0-639 movil | 640-767 movil grande | 768-1023 tablet
   1024-1279 laptop/tablet grande | 1280+ desktop
   ============================================================ */

@media (min-width: 640px) {
    .site-footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .grid-categories {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }

    .site-header__nav {
        display: flex;
        align-items: center;
        gap: var(--space-6);
    }

    .site-header__nav a {
        text-decoration: none;
        font-weight: 500;
        padding: var(--space-2) 0;
    }

    .site-header__nav a:hover,
    .site-header__nav a:focus-visible {
        color: var(--color-terracotta-dark);
    }

    .nav-panel,
    .nav-backdrop {
        display: none;
    }

    .grid-products {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid-categories {
        grid-template-columns: repeat(4, 1fr);
    }

    .site-footer__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1280px) {
    .grid-products {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ---------- Hero ---------- */
.hero {
    padding-block: var(--space-16) var(--space-8);
}

.hero__kicker {
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero__subtitle {
    max-width: 42ch;
    color: var(--color-muted);
}

.hero__media {
    margin-top: var(--space-8);
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-card);
    background: var(--color-soft-stone);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-4);
}

/* ---------- Franja de confianza ---------- */
.trust-strip__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--space-6);
    grid-template-columns: 1fr;
}

.trust-strip__list li {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

@media (min-width: 768px) {
    .trust-strip__list {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ---------- Encabezados de seccion ---------- */
.section__heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.section__heading h2 {
    margin: 0;
}

/* ---------- Grid de productos ---------- */
.grid-products {
    grid-template-columns: 1fr;
}

@media (min-width: 480px) {
    .grid-products {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ---------- Grid de categorias (Inicio) ---------- */
.grid-categories {
    grid-template-columns: 1fr;
}

@media (min-width: 480px) {
    .grid-categories {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ---------- Bloque de proceso (teaser en Inicio) ---------- */
.process-teaser {
    display: grid;
    gap: var(--space-8);
    align-items: center;
    background: var(--color-ink);
    color: var(--color-warm-white);
    border-radius: var(--radius-card);
    padding: var(--space-8);
}

.process-teaser__media {
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-ui);
    background: rgba(250, 249, 246, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-4);
}

.process-teaser .text-muted {
    color: rgba(250, 249, 246, 0.7);
}

@media (min-width: 768px) {
    .process-teaser {
        grid-template-columns: 1fr 1fr;
    }
}

/* ---------- Teaser de proyectos especiales ---------- */
.special-teaser {
    text-align: center;
    max-width: 640px;
}

.special-page {
    max-width: 640px;
}

/* ---------- Proceso (pagina Nosotros) ---------- */
.process-grid {
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .process-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ---------- Pagina de producto ---------- */
.product-page__notice {
    background: var(--color-soft-stone);
    border-radius: var(--radius-ui);
    padding: var(--space-2) var(--space-4);
    display: inline-block;
    margin-bottom: var(--space-6);
}

.product-page__layout {
    display: grid;
    gap: var(--space-8);
    grid-template-columns: 1fr;
}

.product-gallery__main {
    aspect-ratio: 4 / 5;
    border-radius: var(--radius-card);
    background: var(--color-soft-stone);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-4);
    overflow: hidden;
}

.product-gallery__main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-gallery__thumbs {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
    overflow-x: auto;
    padding-bottom: var(--space-1);
}

.product-gallery__thumb {
    flex: 0 0 auto;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-ui);
    border: var(--border-thin);
    background: var(--color-canvas);
    cursor: pointer;
    padding: var(--space-1);
    text-align: center;
}

.product-page__price {
    font-size: var(--fs-h3);
    font-weight: 600;
    margin: 0 0 var(--space-4);
}

/* Colores demo del catalogo. Si se agregan mas colores al catalogo, sumar
   aqui su clase correspondiente. */
.swatch__dot--negro { background: var(--color-ink); }
.swatch__dot--blanco { background: var(--color-warm-white); border: var(--border-thin); }
.swatch__dot--arena { background: #D8C9A3; }
.swatch__dot--gris { background: #9C9890; }
.swatch__dot--natural { background: #E4D9C0; }
.swatch__dot--terracota { background: var(--color-terracotta); }

.swatch--static {
    width: 20px;
    height: 20px;
    padding: 0;
    cursor: default;
}

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

.size-option {
    min-height: 44px;
    min-width: 72px;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-ui);
    border: var(--border-thin);
    background: var(--color-warm-white);
    cursor: pointer;
    text-align: center;
    line-height: 1.3;
}

.size-option[aria-pressed="true"] {
    border-color: var(--color-ink);
    background: var(--color-canvas);
}

.qty-stepper {
    display: inline-flex;
    align-items: center;
    border: var(--border-thin);
    border-radius: var(--radius-ui);
    overflow: hidden;
    max-width: 140px;
}

.qty-stepper .icon-btn {
    /* Nunca reducir por debajo de 44x44: touch target obligatorio (ver
       ACCEPTANCE_TESTS.md). Sin esto, flexbox lo encoge en contenedores
       angostos como .cart-line__qty. */
    flex-shrink: 0;
}

.qty-stepper input {
    width: 48px;
    min-width: 0;
    min-height: 44px;
    border: none;
    text-align: center;
    -moz-appearance: textfield;
}

.qty-stepper input::-webkit-outer-spin-button,
.qty-stepper input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.production-note {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-muted);
}

.production-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--color-success);
    display: inline-block;
    flex: 0 0 auto;
}

.product-page__cta {
    width: 100%;
}

.product-page__details {
    margin-top: var(--space-16);
    border-top: var(--border-thin);
    max-width: 720px;
}

.product-page__details details {
    border-bottom: var(--border-thin);
    padding-block: var(--space-4);
}

.product-page__details summary {
    cursor: pointer;
    font-weight: 600;
}

.product-page__details p {
    margin-top: var(--space-3);
    margin-bottom: 0;
}

@media (min-width: 1024px) {
    .product-page__layout {
        grid-template-columns: 58% 1fr;
        align-items: start;
    }

    .product-page__buybox {
        position: sticky;
        top: calc(72px + var(--space-6));
    }
}

/* ---------- Carrito ---------- */
.cart-layout {
    display: grid;
    gap: var(--space-8);
    grid-template-columns: 1fr;
    align-items: start;
}

.cart-lines {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.cart-line {
    display: grid;
    grid-template-columns: 88px 1fr auto;
    gap: var(--space-4);
    align-items: start;
    padding-block: var(--space-4);
    border-bottom: var(--border-thin);
}

.cart-line__media {
    width: 88px;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius-ui);
    background: var(--color-soft-stone);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-1);
}

.cart-line__info {
    min-width: 0;
}

.cart-line__name {
    display: inline-block;
    font-weight: 500;
    text-decoration: none;
    margin-bottom: var(--space-1);
}

.cart-line__variant {
    margin-bottom: var(--space-2);
}

.cart-line__error {
    color: var(--color-error);
}

.cart-line__qty {
    max-width: 140px;
}

.cart-line__price {
    text-align: right;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-2);
}

.cart-line__subtotal {
    font-weight: 600;
    margin: 0;
}

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

.cart-checkout-error {
    color: var(--color-error);
}

.paypal-button-container {
    min-height: 44px;
    max-width: 100%;
}

.cart-summary__row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: var(--fs-h3);
}

@media (min-width: 1024px) {
    .cart-layout {
        grid-template-columns: 1fr 360px;
    }

    .cart-summary {
        position: sticky;
        top: calc(72px + var(--space-6));
    }
}

/* ---------- Paginas de error (404 / 500) ---------- */
.error-page {
    min-height: 100dvh;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-8) var(--gutter);
    gap: var(--space-2);
}

.error-page__logo {
    width: 72px;
    height: 72px;
    margin-bottom: var(--space-4);
}

.error-page__code {
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.error-page h1 {
    font-size: var(--fs-h2);
    margin-bottom: var(--space-2);
}

.error-page p.text-muted {
    max-width: 48ch;
}

.error-page__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-6);
}

/* ---------- Movimiento reducido ---------- */
@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;
    }
}