/* ==========================================================================
   Mis Cosas — Static SPA Styles
   ========================================================================== */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Colors */
  --color-bg: #f7f5f0;
  --color-surface: #ffffff;
  --color-primary: #1a1a1a;
  --color-text: #333333;
  --color-text-secondary: #6b7280;
  --color-border: #e5e5e5;
  --color-whatsapp: #25D366;
  --color-whatsapp-hover: #1ebe5b;
  --color-accent: #c4956a;
  --color-accent-light: #fef3e8;
  --color-hero-bg: #1a1a2e;
  --color-hero-overlay: rgba(26, 26, 46, 0.85);
  --color-badge: #f59e0b;
  --color-price: #dc2626;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.04);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

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

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

/* ---------- Utilities ---------- */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  text-align: center;
  justify-content: center;
}

.btn--whatsapp {
  background-color: var(--color-whatsapp);
  color: #ffffff;
}

.btn--whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--outline {
  background-color: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn--outline-dark {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--outline-dark:hover {
  border-color: var(--color-whatsapp);
  color: var(--color-whatsapp);
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

.icon-whatsapp {
  flex-shrink: 0;
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: box-shadow var(--transition-base);
}

.header--scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary);
}

.nav__logo-icon {
  font-size: 1.4rem;
}

.nav__contact {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.45rem 1rem;
  background-color: var(--color-whatsapp);
  color: #fff;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.85rem;
  transition: all var(--transition-base);
}

.nav__contact:hover {
  background-color: var(--color-whatsapp-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding: calc(64px + var(--space-3xl)) 0 var(--space-4xl);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
  z-index: -1;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(196, 149, 106, 0.15) 0%, transparent 70%),
              radial-gradient(ellipse at 70% 80%, rgba(37, 211, 102, 0.08) 0%, transparent 50%);
}

.hero__content {
  max-width: 680px;
}

.hero__badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.9);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: var(--space-lg);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.hero__description {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
  max-width: 560px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ---------- Items Section ---------- */
.items {
  padding: var(--space-4xl) 0;
}

.items__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.items__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-xl);
}

/* ---------- Item Card ---------- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.card__image-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f3f4f6;
}

.card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card__image {
  transform: scale(1.05);
}

.card__badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  background: var(--color-whatsapp);
  color: #ffffff;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.card__body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card__name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
  text-transform: capitalize;
}

.card__description {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

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

.card__price-current {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
}

.card__price-currency {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem 1rem;
  background-color: var(--color-whatsapp);
  color: #ffffff;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.8rem;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.card__cta:hover {
  background-color: var(--color-whatsapp-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ---------- Context Section ---------- */
.context {
  padding: 0 0 var(--space-4xl);
}

.context__card {
  background: linear-gradient(135deg, #fefefe 0%, #faf8f5 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  border: 1px solid var(--color-border);
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.context__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.context__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

.context__text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

.context__details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  text-align: left;
}

.context__detail {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.context__detail-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.context__detail strong {
  display: block;
  color: var(--color-primary);
  font-size: 0.9rem;
  margin-bottom: 0.15rem;
}

.context__detail p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-sm);
}

.footer__text {
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 400px;
}

.footer__contact h4 {
  font-size: 0.875rem;
  color: #ffffff;
  margin-bottom: var(--space-md);
}

.footer__bottom {
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- Floating WhatsApp Button ---------- */
.fab-whatsapp {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 56px;
  height: 56px;
  background-color: var(--color-whatsapp);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  z-index: 90;
}

.fab-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.fab-whatsapp::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, 0.3);
  animation: fab-pulse 2s ease-in-out infinite;
}

@keyframes fab-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: 0; }
}

/* ---------- Animations ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .hero {
    min-height: 75vh;
    padding-top: calc(64px + var(--space-2xl));
  }

  .hero__title {
    font-size: 1.75rem;
  }

  .hero__description {
    font-size: 1rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .items__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .context__card {
    padding: var(--space-xl);
  }

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

  .footer__content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer__text {
    max-width: 100%;
  }

  .footer__contact {
    text-align: center;
  }

  .fab-whatsapp {
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 50px;
    height: 50px;
  }

  .fab-whatsapp svg {
    width: 24px;
    height: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .section-title {
    font-size: 1.4rem;
  }

  .card__footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .card__cta {
    width: 100%;
    justify-content: center;
  }
}