/* ============================================================================
   Florería Teo de Cajititlán — Sistema de diseño
   Minimalista, elegante, inspirado en Apple / Tesla / Rolex.
   Sin frameworks. CSS puro con custom properties.
   ============================================================================ */

:root {
  /* Paleta */
  --color-bg: #F8F7F4;
  --color-bg-elevated: #FFFFFF;
  --color-text: #222222;
  --color-text-muted: #6B6863;
  --color-border: #E4E1DA;
  --color-black: #111111;
  --color-black-hover: #2A2A2A;
  --color-whatsapp: #25D366;
  --color-whatsapp-hover: #1EBE5A;
  --color-accent: #3D5A6C; /* azul acero del logo, solo acentos puntuales */
  --color-focus: #1A73E8;

  /* Tipografía */
  --font-display: 'Manrope', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Espaciado */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;

  /* Bordes y sombras */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(17, 17, 17, 0.06);
  --shadow-md: 0 8px 24px rgba(17, 17, 17, 0.08);
  --shadow-lg: 0 16px 48px rgba(17, 17, 17, 0.12);

  /* Transiciones */
  --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --duration-fast: 150ms;
  --duration-standard: 250ms;

  color-scheme: light;
}

[data-theme="dark"] {
  --color-bg: #121212;
  --color-bg-elevated: #1B1B1B;
  --color-text: #F2F1EE;
  --color-text-muted: #A6A39C;
  --color-border: #2E2E2E;
  --color-black: #F2F1EE;
  --color-black-hover: #FFFFFF;
  color-scheme: dark;
}

[data-theme="dark"] .btn-primary {
  background: var(--color-black);
  color: #121212;
}

/* ---------------------------------------------------------------- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  transition: background var(--duration-standard) var(--ease-standard), color var(--duration-standard) var(--ease-standard);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); margin: 0 0 var(--space-2); letter-spacing: -0.01em; }
p { margin: 0 0 var(--space-3); }
ul { margin: 0; padding: 0; list-style: none; }

/* El atributo [hidden] siempre debe ganar, aunque otro selector con la
   misma especificidad (ej. .product-nav) también fije "display". Sin esto,
   un botón marcado como hidden puede seguir viéndose pero sin funcionar
   (bug real que teníamos en las flechas de la galería de producto). */
[hidden] { display: none !important; }

/* Foco visible para accesibilidad (WCAG 2.4.7) */
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Enlace "saltar al contenido" */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-black);
  color: #fff;
  padding: var(--space-2) var(--space-3);
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* Utilidad para lectores de pantalla */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------- Layout --- */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* --------------------------------------------------------------- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  max-width: 1120px;
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}
.brand__logo { height: 32px; width: 32px; object-fit: cover; border-radius: 50%; flex-shrink: 0; }
.brand__name { text-transform: uppercase; }
.brand__sub {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.header-actions { display: flex; align-items: center; gap: var(--space-2); }
.icon-btn {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-standard), background var(--duration-fast);
}
.icon-btn:hover { transform: translateY(-1px); }
.icon-btn svg { width: 20px; height: 20px; }

/* Botón de WhatsApp en el encabezado: siempre visible (header sticky arriba)
   y con color propio para que destaque como botón de llamada a la acción,
   no como un ícono más. */
.icon-btn--whatsapp {
  background: var(--color-whatsapp);
  border-color: var(--color-whatsapp);
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
}
.icon-btn--whatsapp:hover { background: var(--color-whatsapp-hover); border-color: var(--color-whatsapp-hover); }

/* ------------------------------------------------------------- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-standard), background var(--duration-fast), box-shadow var(--duration-fast);
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--color-black);
  color: #fff;
}
.btn-primary:hover { background: var(--color-black-hover); }

.btn-secondary {
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1.5px solid var(--color-text-muted);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover { border-color: var(--color-text); }
.btn-secondary svg { width: 20px; height: 20px; flex-shrink: 0; }

.btn-whatsapp {
  background: var(--color-whatsapp);
  color: #fff;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
}
.btn-whatsapp:hover { background: var(--color-whatsapp-hover); }
.btn-whatsapp svg { width: 20px; height: 20px; fill: currentColor; }

/* ------------------------------------------------------------ Hero/Home --- */
.hero {
  padding: var(--space-7) 0 var(--space-6);
  text-align: center;
}
.hero__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  max-width: 18ch;
  margin-left: auto;
  margin-right: auto;
}
.hero p.lead {
  max-width: 52ch;
  margin: var(--space-3) auto var(--space-5);
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

/* ----------------------------------------------------------------- Intro --- */
/* Bloque compacto justo debajo del encabezado: deja los botones de
   categoría visibles casi de inmediato, sin necesidad de hacer scroll. */
.intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2px;
  padding: var(--space-4) var(--space-4) var(--space-5);
}
.intro__title {
  font-size: clamp(1.5rem, 5vw, 2.1rem);
  font-weight: 800;
  margin: 0 0 var(--space-2);
}
.intro__line {
  margin: 0;
  font-size: 0.98rem;
  color: var(--color-text);
}
.intro__btn { margin-top: var(--space-4); }

/* --------------------------------------------------------- Category grid --- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  padding: 0 0 var(--space-8);
}
@media (min-width: 640px) {
  .category-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
}

/* Tarjetas de categoría solo con texto — sin fotos (evita depender de
   imágenes que aún no existen: cat-ramos.jpg, cat-arreglos.jpg, etc.) */
.category-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  min-height: 128px;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--duration-standard) var(--ease-standard), transform var(--duration-standard) var(--ease-standard), border-color var(--duration-fast);
}
.category-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); border-color: var(--color-accent); }
.category-card h3 { margin: 0; font-size: 1.1rem; }
.category-card span { font-size: 0.82rem; color: var(--color-text-muted); }

/* Categoría temporal destacada (ej. flores amarillas del 21 de septiembre) */
.category-card--destacada {
  background: linear-gradient(135deg, #FFF6D6 0%, #FFE9A3 100%);
  border-color: #F2C94C;
}
.category-card--destacada h3,
.category-card--destacada span { color: #5A4A12; }
[data-theme="dark"] .category-card--destacada {
  background: linear-gradient(135deg, #3A3213 0%, #4A3E15 100%);
  border-color: #6B5A1E;
}
[data-theme="dark"] .category-card--destacada h3,
[data-theme="dark"] .category-card--destacada span { color: #F5E6A8; }

/* --------------------------------------------------------- Testimonios --- */
.testimonials-section { padding: var(--space-6) 0 var(--space-7); }
.testimonials-section h2 { text-align: center; margin-bottom: var(--space-5); }
.testimonials-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
}
.testimonial-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.testimonial-card__stars { color: #F5A623; font-size: 1.1rem; letter-spacing: 2px; }
.testimonial-card__quote { margin: 0; color: var(--color-text); font-style: italic; }
.testimonial-card__author { margin: 0; font-size: 0.85rem; color: var(--color-text-muted); }

/* -------------------------------------------------------------- Toolbar --- */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  position: sticky;
  top: 64px;
  z-index: 40;
  background: var(--color-bg);
}
.search-input {
  flex: 1 1 220px;
  padding: 12px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  color: var(--color-text);
  font-size: 0.95rem;
}
.filter-chips { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.chip {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  font-size: 0.85rem;
  cursor: pointer;
}
.chip[aria-pressed="true"] {
  background: var(--color-black);
  color: #fff;
  border-color: var(--color-black);
}

/* ------------------------------------------------------------ Product grid --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  padding-bottom: var(--space-8);
}
@media (min-width: 560px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 900px) {
  .product-grid { grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
}

.product-card {
  display: block;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--duration-standard) var(--ease-standard), transform var(--duration-standard) var(--ease-standard);
}
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.product-card__img-wrap { aspect-ratio: 1 / 1; overflow: hidden; background: var(--color-border); }
.product-card__img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.product-card__body { padding: var(--space-3); }
.product-card__code { font-size: 0.72rem; letter-spacing: 0.08em; color: var(--color-text-muted); text-transform: uppercase; }
.product-card__name { font-size: 0.95rem; font-weight: 600; margin-top: 2px; }
.product-card__badge {
  position: relative;
  display: inline-block;
  margin-top: var(--space-1);
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(37, 211, 102, 0.12);
  color: #158A42;
}
[data-theme="dark"] .product-card__badge { color: #4EE18C; }

.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: var(--color-text-muted);
}

/* ============================================================================
   Pantalla de producto — una sola fotografía protagonista.
   El CTA de WhatsApp SIEMPRE visible en el primer viewport en móvil.
   ============================================================================ */
.product-view {
  display: grid;
  gap: var(--space-5);
  padding-bottom: var(--space-7);
}
@media (min-width: 860px) {
  .product-view { grid-template-columns: 1.1fr 0.9fr; align-items: start; padding-top: var(--space-4); }
}

.product-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-elevated);
  box-shadow: var(--shadow-md);
}
/* La foto se alinea hacia arriba dentro de su marco: así la cinta inferior
   con el código (SKU) queda por encima de la barra fija de WhatsApp y se
   alcanza a ver completa en el celular. */
.product-media__img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: contain;
  object-position: center top;
  cursor: zoom-in;
  opacity: 0;
  transform: translateX(12px);
  animation: fadeSlideIn var(--duration-standard) var(--ease-standard) forwards;
}
@keyframes fadeSlideIn {
  to { opacity: 1; transform: translateX(0); }
}
.product-media__img.is-leaving {
  animation: fadeSlideOut var(--duration-standard) var(--ease-standard) forwards;
}
@keyframes fadeSlideOut {
  to { opacity: 0; transform: translateX(-12px); }
}

.product-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px; height: 44px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.85);
  color: var(--color-black);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.product-nav svg { width: 20px; height: 20px; flex-shrink: 0; }
.product-nav--prev { left: var(--space-3); }
.product-nav--next { right: var(--space-3); }

.product-thumbs {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3);
  overflow-x: auto;
}
.product-thumbs img {
  width: 64px; height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
}
.product-thumbs img[aria-current="true"] { border-color: var(--color-black); }

.product-info { display: flex; flex-direction: column; gap: var(--space-3); }
.product-info__code {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.product-info h1 { font-size: clamp(1.5rem, 4vw, 2.1rem); }
.product-info__desc { color: var(--color-text-muted); }
.product-info__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  width: fit-content;
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-whatsapp); }
.status-dot.is-off { background: #C94B4B; }

/* CTA fija — siempre visible en móvil desde que se entra a la página,
   sin necesidad de hacer scroll (barra anclada abajo del todo).
   Una sola fila: WhatsApp 5/6 del ancho, compartir 1/6 a la derecha.
   Al ser una sola fila ocupa mucho menos alto y la foto se ve más grande. */
.product-cta {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: var(--space-2);
}
.product-cta .btn-whatsapp { flex: 5 1 0; min-width: 0; }
.product-cta .btn-secondary { flex: 1 1 0; min-width: 0; padding: 14px 0; }
@media (max-width: 859px) {
  .product-cta {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 40;
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -6px 24px rgba(17, 17, 17, 0.1);
    padding: var(--space-2) var(--space-3) calc(var(--space-2) + env(safe-area-inset-bottom));
  }
  /* Deja espacio abajo para que la barra fija no tape el resto del contenido */
  .product-view { padding-bottom: 104px; }
}

.related-section { padding-top: var(--space-6); }
.related-section h2 { font-size: 1.2rem; margin-bottom: var(--space-3); }

/* --------------------------------------------------------------- Lightbox --- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(8, 8, 8, 0.94);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}
body.lightbox-open { overflow: hidden; }
.lightbox__img {
  max-width: min(92vw, 720px);
  max-height: 62vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}
/* Botones del visor: círculo blanco sólido con ícono oscuro — visibles
   sobre cualquier foto, sin depender de transparencias difíciles de ver. */
.lightbox__close {
  position: absolute;
  top: max(var(--space-4), env(safe-area-inset-top));
  right: var(--space-4);
  z-index: 210;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: none;
  background: #fff;
  color: #141414;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0,0,0,0.35);
}
.lightbox__close svg { width: 22px; height: 22px; flex-shrink: 0; }
.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 210;
  width: 48px; height: 48px;
  border-radius: 50%;
  border: none;
  background: #fff;
  color: #141414;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0,0,0,0.35);
}
.lightbox__nav svg { width: 24px; height: 24px; flex-shrink: 0; }
.lightbox__nav--prev { left: var(--space-3); }
.lightbox__nav--next { right: var(--space-3); }
.lightbox__actions {
  display: flex;
  gap: var(--space-2);
  width: 100%;
  max-width: 420px;
  margin-top: var(--space-5);
  padding-bottom: env(safe-area-inset-bottom);
}
.lightbox__actions .btn-whatsapp { flex: 5 1 0; min-width: 0; }
.lightbox__actions .btn-secondary {
  flex: 1 1 0;
  min-width: 0;
  padding: 14px 0;
  background: #fff;
  border-color: #fff;
  color: #141414;
}
.lightbox__actions .btn-secondary svg { width: 20px; height: 20px; flex-shrink: 0; }
.lightbox__actions .btn-secondary:hover { border-color: #E4E1DA; }

/* --------------------------------------------------------------- Footer --- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0 var(--space-8);
  margin-top: var(--space-7);
  color: var(--color-text-muted);
  font-size: 0.88rem;
}
.site-footer a { text-decoration: underline; text-underline-offset: 3px; }
.footer-grid { display: grid; gap: var(--space-4); }
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(3, 1fr); } }
.footer-grid h4 { color: var(--color-text); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; }
.social-row { display: flex; gap: var(--space-2); margin-top: var(--space-2); }

/* --------------------------------------------------------------- Toast --- */
.toast {
  position: fixed;
  left: 50%;
  bottom: var(--space-5);
  transform: translate(-50%, 12px);
  background: var(--color-black);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-standard) var(--ease-standard), transform var(--duration-standard) var(--ease-standard);
  z-index: 100;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }

/* --------------------------------------------------------- Skeleton/loading --- */
.skeleton {
  background: linear-gradient(90deg, var(--color-border) 25%, color-mix(in srgb, var(--color-border) 60%, var(--color-bg)) 50%, var(--color-border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.3s infinite;
  border-radius: var(--radius-md);
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* Respeta preferencia de "reducir movimiento" (WCAG 2.3.3) */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}