/* ==========================================================================
   Juan o Juan — variables centralizadas de marca
   Tema oscuro por defecto, con toggle a tema claro vía [data-theme].
   Los colores viven acá; el resto del CSS no necesita tocarse.
   ========================================================================== */
:root {
  --color-bg: #121011;
  --color-bg-elevated: #1c1a1a;
  --color-bg-elevated-2: #242121;
  --color-ink: #f5f1ee;
  --color-ink-soft: #b6b0aa;
  --color-ink-faint: #837d78;
  --color-border: #2c2929;
  --color-border-strong: #3c3838;

  --color-red: #d81012;
  --color-red-dark: #a80d0f;
  --color-red-ink: #fff5f5;
  --color-red-soft: rgba(216, 16, 18, 0.14);

  --color-sold: #726c67;

  --font-display: "Archivo", "Segoe UI", sans-serif;
  --font-body: "Archivo", "Segoe UI", sans-serif;

  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 20px;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.2), 0 10px 22px -12px rgba(0, 0, 0, 0.45);
  --shadow-card-hover: 0 4px 10px rgba(0, 0, 0, 0.25), 0 18px 32px -14px rgba(0, 0, 0, 0.55);
  --shadow-drawer: -8px 0 30px rgba(0, 0, 0, 0.35);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --container-max: 1180px;

  color-scheme: dark;
}

:root[data-theme="light"] {
  --color-bg: #faf8f6;
  --color-bg-elevated: #ffffff;
  --color-bg-elevated-2: #f2efea;
  --color-ink: #1b1918;
  --color-ink-soft: #5c5651;
  --color-ink-faint: #8c8580;
  --color-border: #e7e2da;
  --color-border-strong: #d5cec2;

  --color-red-soft: #fbe5e4;

  --shadow-card: 0 1px 2px rgba(28, 25, 24, 0.05), 0 10px 22px -12px rgba(28, 25, 24, 0.16);
  --shadow-card-hover: 0 4px 10px rgba(28, 25, 24, 0.06), 0 18px 32px -14px rgba(28, 25, 24, 0.22);
  --shadow-drawer: -8px 0 30px rgba(28, 25, 24, 0.14);

  color-scheme: light;
}

/* ==========================================================================
   Reset & base
   ========================================================================== */
* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s var(--ease-out), color 0.3s var(--ease-out);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

[hidden] {
  display: none !important;
}

button {
  font: inherit;
  cursor: pointer;
}

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

h1, h2, h3, p, dl, dd {
  margin: 0;
}

section {
  scroll-margin-top: 68px;
}

/* ==========================================================================
   Botones
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  transition: transform 0.25s var(--ease-out), background 0.25s var(--ease-out),
    border-color 0.25s var(--ease-out), opacity 0.25s var(--ease-out);
}

.btn:active {
  transform: scale(0.96);
}

.btn--primary {
  background: var(--color-red);
  color: var(--color-red-ink);
}

.btn--primary:hover {
  background: var(--color-red-dark);
}

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

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

.btn--lg {
  padding: 14px 28px;
  font-size: 1rem;
}

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

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand__logo {
  height: 26px;
  width: auto;
  filter: var(--logo-filter, none);
}

:root[data-theme="light"] .brand__logo {
  filter: none;
}

.main-nav {
  display: none;
  align-items: center;
  gap: 28px;
  margin: 0 auto;
}

.main-nav__link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  padding: 6px 2px;
  position: relative;
  transition: color 0.2s var(--ease-out);
}

.main-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-red);
  transition: width 0.3s var(--ease-out);
}

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

.main-nav__link:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

.icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  color: var(--color-ink);
  transition: border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out), color 0.25s var(--ease-out);
}

.icon-btn:hover {
  border-color: var(--color-red);
  color: var(--color-red);
}

.icon-btn:active {
  transform: scale(0.92);
}

.icon-sun, .icon-moon {
  position: absolute;
  transition: opacity 0.25s var(--ease-out), transform 0.35s var(--ease-out);
}

.icon-moon {
  opacity: 0;
  transform: rotate(-40deg) scale(0.6);
}

:root[data-theme="light"] .icon-sun {
  opacity: 0;
  transform: rotate(40deg) scale(0.6);
}

:root[data-theme="light"] .icon-moon {
  opacity: 1;
  transform: rotate(0) scale(1);
}

.cart-btn__count {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--color-red);
  color: var(--color-red-ink);
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

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

/* Panel de nav en mobile */
.main-nav--open {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  margin: 0;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  padding: 6px 20px 14px;
  animation: nav-drop 0.25s var(--ease-out);
}

.main-nav--open .main-nav__link {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.main-nav--open .main-nav__link:last-child {
  border-bottom: none;
}

@keyframes nav-drop {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  padding: 52px 20px 34px;
  background:
    radial-gradient(circle at 85% -10%, var(--color-red-soft) 0%, transparent 45%),
    var(--color-bg);
}

.hero__inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.hero__kicker {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.76rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-red);
  margin-bottom: 12px;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6.4vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 15ch;
  color: var(--color-ink);
}

.hero__subtitle {
  margin-top: 16px;
  max-width: 46ch;
  color: var(--color-ink-soft);
  font-size: 1rem;
  line-height: 1.55;
}

.hero__actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.counter {
  margin-top: 24px;
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

.counter strong {
  color: var(--color-red);
  font-weight: 800;
}

/* ==========================================================================
   Encabezados de sección
   ========================================================================== */
.section-heading {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 46px 20px 18px;
}

.section-heading__kicker {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.74rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-red);
  margin-bottom: 8px;
}

.section-heading__kicker--on-dark {
  color: #ff6b6b;
}

.section-heading__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  letter-spacing: -0.01em;
}

.section-heading__title--on-dark {
  color: #ffffff;
}

/* ==========================================================================
   Filtros
   ========================================================================== */
.filters {
  position: sticky;
  top: 61px;
  z-index: 20;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.filters__bar {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.filters__toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--color-border-strong);
  background: var(--color-bg-elevated);
  color: var(--color-ink);
  border-radius: 999px;
  padding: 8px 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.83rem;
  transition: border-color 0.2s var(--ease-out), color 0.2s var(--ease-out), transform 0.2s var(--ease-out);
}

.filters__toggle:hover {
  border-color: var(--color-red);
}

.filters__toggle:active {
  transform: scale(0.97);
}

.filters__toggle[aria-expanded="true"] {
  border-color: var(--color-red);
  color: var(--color-red);
}

.filters__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--color-red);
  color: var(--color-red-ink);
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1;
}

.filters__chevron {
  transition: transform 0.3s var(--ease-out);
  color: var(--color-ink-faint);
}

.filters__toggle[aria-expanded="true"] .filters__chevron {
  transform: rotate(180deg);
  color: var(--color-red);
}

.filters__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s var(--ease-out);
}

.filters__panel.is-open {
  grid-template-rows: 1fr;
}

.filters__panel-inner {
  overflow: hidden;
  min-height: 0;
}

.filters__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 4px 20px 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px 22px;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.filter-group--rodado {
  flex: 1 1 100%;
  order: -1;
}

.filter-group--marca {
  flex: 1 1 100%;
  order: -1;
}

.filter-group__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
}

.chip-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.chip-row::-webkit-scrollbar {
  display: none;
}

.chip {
  flex: 0 0 auto;
  border: 1px solid var(--color-border-strong);
  background: var(--color-bg-elevated);
  color: var(--color-ink);
  border-radius: 999px;
  padding: 7px 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.83rem;
  transition: transform 0.2s var(--ease-out), background 0.2s var(--ease-out),
    color 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
}

.chip:hover {
  border-color: var(--color-red);
}

.chip:active {
  transform: scale(0.94);
}

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

.segmented {
  display: inline-flex;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.segmented button {
  border: none;
  background: transparent;
  color: var(--color-ink-soft);
  padding: 6px 13px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.82rem;
  transition: background 0.2s var(--ease-out), color 0.2s var(--ease-out), transform 0.2s var(--ease-out);
  white-space: nowrap;
}

.segmented button:active {
  transform: scale(0.94);
}

.segmented button[aria-pressed="true"] {
  background: var(--color-red);
  color: var(--color-red-ink);
}

.filter-reset {
  border: none;
  background: none;
  color: var(--color-ink-faint);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8rem;
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 6px 0;
  transition: color 0.2s var(--ease-out);
  margin-left: auto;
  white-space: nowrap;
  flex: 0 0 auto;
}

.filter-reset:hover {
  color: var(--color-red);
}

/* ==========================================================================
   Catálogo / grid
   ========================================================================== */
.catalog__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 24px 20px 70px;
}

.catalog__nota {
  color: var(--color-ink-faint);
  font-size: 0.82rem;
  line-height: 1.5;
  max-width: 62ch;
  margin-bottom: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}

/* ==========================================================================
   Tarjeta de llanta
   ========================================================================== */
.card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.3s var(--ease-out);
  opacity: 0;
  transform: translateY(12px);
  animation: card-in 0.5s var(--ease-out) forwards;
  animation-delay: calc(var(--card-index, 0) * 45ms);
}

@keyframes card-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-border-strong);
}

.card--in-cart {
  border-color: var(--color-red);
}

.card--sold {
  filter: grayscale(0.55);
}

.card--sold:hover {
  transform: none;
}

.card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--color-bg-elevated-2);
  overflow: hidden;
}

.card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}

.card:hover .card__img {
  transform: scale(1.04);
}

.card__rodado {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  align-items: baseline;
  gap: 1px;
  background: rgba(18, 16, 17, 0.82);
  color: #fff;
  padding: 5px 10px 5px 12px;
  border-radius: 999px;
  font-family: var(--font-display);
  backdrop-filter: blur(4px);
}

.card__rodado em {
  font-style: normal;
  font-weight: 800;
  font-size: 1.02rem;
  line-height: 1;
}

.card__rodado b {
  font-weight: 600;
  font-size: 0.63rem;
  margin-left: 1px;
  opacity: 0.75;
}

.card__sold-ribbon {
  display: none;
  position: absolute;
  top: 14px;
  right: -30px;
  background: var(--color-sold);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 5px 34px;
  transform: rotate(35deg);
  box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}

.card--sold .card__sold-ribbon {
  display: block;
}

.card__body {
  padding: 14px 15px 15px;
}

.card__tags {
  display: flex;
  gap: 6px;
  margin-bottom: 9px;
}

.tag {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.65rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 999px;
}

.tag--tipo {
  background: var(--color-bg-elevated-2);
  color: var(--color-ink-soft);
  border: 1px solid var(--color-border-strong);
}

.card__medida {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

.card__marca {
  margin-top: 2px;
  font-size: 0.83rem;
  color: var(--color-ink-faint);
}

.qty-stepper {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.qty-stepper[hidden] {
  display: none;
}

.qty-stepper__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
}

.qty-stepper__control {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  background: var(--color-bg-elevated-2);
  padding: 3px;
}

.qty-stepper__btn {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1;
  transition: background 0.2s var(--ease-out), color 0.2s var(--ease-out), opacity 0.2s var(--ease-out);
}

.qty-stepper__btn:hover:not(:disabled) {
  background: var(--color-red);
  color: var(--color-red-ink);
}

.qty-stepper__btn:active:not(:disabled) {
  transform: scale(0.9);
}

.qty-stepper__btn:disabled {
  opacity: 0.35;
  pointer-events: none;
}

.qty-stepper__value {
  min-width: 24px;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--color-ink);
}

.detail-modal .qty-stepper {
  margin-top: 4px;
  margin-bottom: 4px;
}

.card__footer {
  margin-top: 14px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px;
}

.card__price-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.card__price {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--color-ink);
  white-space: nowrap;
}

.card__stock {
  font-size: 0.73rem;
  color: var(--color-ink-faint);
  font-weight: 600;
}

.card__cta {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1.5px solid var(--color-red);
  color: var(--color-red);
  padding: 8px 12px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  transition: transform 0.25s var(--ease-out), background 0.25s var(--ease-out), color 0.25s var(--ease-out);
}

.card__cta:hover {
  background: var(--color-red);
  color: var(--color-red-ink);
}

.card__cta:active {
  transform: scale(0.94);
}

.card__cta-icon-added {
  display: none;
}

.card__cta.is-added {
  background: var(--color-red);
  color: var(--color-red-ink);
}

.card__cta.is-added .card__cta-icon-add {
  display: none;
}

.card__cta.is-added .card__cta-icon-added {
  display: inline-flex;
}

.card__cta[aria-disabled="true"] {
  border-color: var(--color-border-strong);
  color: var(--color-ink-faint);
  pointer-events: none;
}

/* ==========================================================================
   Estado vacío
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-ink-faint);
}

.empty-state svg {
  color: var(--color-border-strong);
}

.empty-state__title {
  margin-top: 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-ink);
}

.empty-state__subtitle {
  margin-top: 6px;
  margin-bottom: 20px;
  font-size: 0.88rem;
}

/* ==========================================================================
   Nosotros
   ========================================================================== */
.about {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.about__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 50px 20px 56px;
}

.about__text {
  margin-top: 14px;
  max-width: 62ch;
  color: var(--color-ink-soft);
  font-size: 0.98rem;
  line-height: 1.6;
}

.about__stats {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 14px;
  border-top: 2px solid var(--color-red);
}

.stat__number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 4vw, 1.7rem);
  letter-spacing: -0.01em;
}

.stat__label {
  font-size: 0.78rem;
  color: var(--color-ink-faint);
  font-weight: 600;
}

/* ==========================================================================
   Contacto
   ========================================================================== */
.contact {
  background: #17100f;
  background-image: radial-gradient(circle at 15% 15%, rgba(216, 16, 18, 0.16), transparent 50%);
}

.contact__inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 56px 20px 60px;
  text-align: center;
}

.contact__text {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.98rem;
  max-width: 46ch;
  margin-left: auto;
  margin-right: auto;
}

.contact .btn--primary {
  margin-top: 26px;
}

.contact__details {
  margin-top: 36px;
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.contact__details dt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #ff6b6b;
  margin-bottom: 4px;
}

.contact__details dd {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--color-bg);
  padding: 38px 20px 44px;
  text-align: center;
}

.site-footer__inner {
  max-width: 480px;
  margin: 0 auto;
}

.site-footer__mark {
  width: 34px;
  height: 34px;
  margin: 0 auto 10px;
}

.site-footer__brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: var(--color-ink);
}

.site-footer__note {
  margin-top: 6px;
  font-size: 0.82rem;
  color: var(--color-ink-faint);
  line-height: 1.5;
}

/* ==========================================================================
   Carrito de consulta — overlay + drawer
   ========================================================================== */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out);
  z-index: 49;
}

.cart-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(380px, 90vw);
  background: var(--color-bg-elevated);
  border-left: 1px solid var(--color-border);
  box-shadow: var(--shadow-drawer);
  z-index: 50;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease-out);
}

.cart-drawer.is-open {
  transform: translateX(0);
}

.cart-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--color-border);
}

.cart-drawer__header h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
}

.cart-drawer__body {
  flex: 1;
  overflow-y: auto;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cart-empty {
  color: var(--color-ink-faint);
  font-size: 0.88rem;
  line-height: 1.5;
  padding: 20px 4px;
}

.cart-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 10px;
  background: var(--color-bg-elevated-2);
  border-radius: var(--radius-m);
  animation: card-in 0.3s var(--ease-out);
}

.cart-item__qty {
  flex: 1 1 100%;
  margin-top: 0;
  padding-left: 56px;
}

.cart-item__img {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-s);
  object-fit: cover;
  flex: 0 0 auto;
  background: var(--color-bg-elevated);
}

.cart-item__info {
  flex: 1;
  min-width: 0;
}

.cart-item__medida {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.88rem;
}

.cart-item__meta {
  font-size: 0.76rem;
  color: var(--color-ink-faint);
  margin-top: 2px;
}

.cart-item__remove {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid var(--color-border-strong);
  background: transparent;
  color: var(--color-ink-faint);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.cart-item__remove:hover {
  border-color: var(--color-red);
  color: var(--color-red);
}

.cart-drawer__footer {
  padding: 16px 18px 20px;
  border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   Detalle de llanta (modal)
   ========================================================================== */
.detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out);
  z-index: 59;
}

.detail-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.detail-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  width: min(560px, calc(100vw - 32px));
  max-height: min(720px, calc(100vh - 48px));
  background: var(--color-bg-elevated);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-drawer);
  z-index: 60;
  overflow-y: auto;
  transform: translate(-50%, -48%) scale(0.96);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s var(--ease-out), opacity 0.25s var(--ease-out);
}

.detail-modal.is-open {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  pointer-events: auto;
}

.detail-modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-strong);
}

.detail-modal__media {
  background: #000;
  height: min(320px, 38vh);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--radius-l) var(--radius-l) 0 0;
}

.detail-modal__img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.detail-modal__body {
  padding: 20px 22px 22px;
}

.detail-modal__id {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: 4px;
}

.detail-modal__titulo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
}

.detail-modal__auto {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  margin-top: 4px;
  line-height: 1.5;
}

.detail-modal__tags {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.detail-modal__specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 16px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.detail-modal__specs dt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: 3px;
}

.detail-modal__specs dd {
  font-weight: 600;
  font-size: 0.92rem;
}

.detail-modal__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.detail-modal__acciones {
  display: flex;
  align-items: center;
  gap: 8px;
}

@media (max-width: 480px) {
  .detail-modal {
    width: calc(100vw - 20px);
    max-height: calc(100vh - 24px);
  }

  .detail-modal__footer {
    flex-direction: column;
    align-items: stretch;
  }

  .detail-modal__acciones {
    justify-content: stretch;
  }

  .detail-modal__acciones .btn,
  .detail-modal__acciones .card__cta {
    flex: 1;
    justify-content: center;
  }
}

/* Barra flotante mobile */
.cart-float {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 45;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-red);
  color: var(--color-red-ink);
  border: none;
  padding: 14px 18px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 10px 26px -6px rgba(216, 16, 18, 0.55);
  animation: float-in 0.35s var(--ease-out);
  transition: transform 0.25s var(--ease-out);
}

.cart-float:active {
  transform: scale(0.97);
}

@keyframes float-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 859px) {
  .site-header__inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 10px;
  }

  .nav-toggle {
    justify-self: start;
  }

  .brand {
    justify-self: center;
  }

  .header-actions {
    justify-self: end;
  }
}

@media (min-width: 860px) {
  .main-nav {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

  .cart-float {
    display: none !important;
  }

  .about__inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 40px;
  }

  .about__stats {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 640px) {
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
  }
}

/* Mobile: 2 tarjetas por fila en vez de 1 sola gigante */
@media (max-width: 639px) {
  .catalog__inner {
    padding-left: 14px;
    padding-right: 14px;
  }

  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .card__body {
    padding: 10px 10px 12px;
  }

  .card__rodado {
    top: 8px;
    left: 8px;
    padding: 4px 8px 4px 10px;
  }

  .card__rodado em {
    font-size: 0.88rem;
  }

  .tag {
    font-size: 0.58rem;
    padding: 2px 7px;
  }

  .card__medida {
    font-size: 0.9rem;
    margin-top: 2px;
  }

  .card__marca {
    font-size: 0.72rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .card__footer {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .card__price {
    font-size: 0.98rem;
  }

  .card__cta {
    justify-content: center;
    width: 100%;
    padding: 8px 10px;
  }
}

@media (min-width: 960px) {
  .filters__inner {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: end;
    column-gap: 24px;
    row-gap: 14px;
  }

  .filter-group--rodado {
    grid-column: 1 / -1;
    flex: initial;
    order: initial;
  }

  .filter-group--marca {
    grid-column: 1;
    flex: initial;
    order: initial;
    min-width: 0;
  }

  .filter-group--tipo {
    grid-column: 2;
    justify-self: start;
  }

  .filter-group--orden {
    grid-column: 3;
    justify-self: start;
  }
}

@media (max-width: 400px) {
  .site-header__inner {
    padding: 10px 14px;
  }

  .about__stats {
    grid-template-columns: 1fr;
  }
}

/* Respeta usuarios con preferencia de menos movimiento */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .card {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .card, .card__img, .icon-btn, .chip, .segmented button, .card__cta, .cart-drawer, .cart-overlay,
  .detail-modal, .detail-overlay {
    transition: none;
  }
}