/* ==========================================================================
   LOS TRES HERMANOS — Gourmet Charcuterie & Fiambres Artesanales
   Design System & Tokens (Guía de Marca: Borravino, Antracita, Beige Cálido)
   ========================================================================== */

:root {
  /* Paleta cromática oficial de la Guía de Marca */
  --color-primary: #5A1E24;        /* Rojo Borravino / Terracota Profundo - Dominante y Calidez */
  --color-primary-dark: #3F1318;
  --color-primary-light: #782D34;
  --color-secondary: #2C2623;      /* Antracita / Carbón - Sobriedad y contraste */
  --color-accent: #9E3841;         /* Borravino vivo / Teja - CTA y sellos */
  --color-accent-hover: #832C34;
  --color-bg-ghost: #FAF7F2;       /* Beige / Arena Cálido - Lienzo natural */
  --color-surface: #FFFFFF;
  --color-surface-soft: #F2ECE4;
  --color-text-main: #231E1C;      /* Negro / Marrón noche suave */
  --color-text-muted: #6B625D;
  --color-border: #E5DDD3;
  --color-border-dark: #CBBFB3;

  /* Tipografía */
  --font-family: 'Montserrat', system-ui, -apple-system, sans-serif;
  --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;

  /* Elevaciones */
  --shadow-sm: 0 2px 8px rgba(63, 19, 24, 0.05);
  --shadow-md: 0 6px 20px rgba(63, 19, 24, 0.08);
  --shadow-lg: 0 14px 36px rgba(63, 19, 24, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transiciones */
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
  font-size: 16px;
}

section[id] {
  scroll-margin-top: 90px;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg-ghost);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Tipografía de títulos */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--color-primary);
}

/* Contenedores */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Top Announcement */
.top-notice {
  background: var(--color-primary-dark);
  color: #F8F4EE;
  font-size: 0.85rem;
  text-align: center;
  padding: 8px 16px;
  font-weight: 500;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
}

.top-notice a {
  color: #E6B89C;
  text-decoration: underline;
  margin-left: 6px;
}

/* Header & Navegación */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(250, 247, 242, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  transition: var(--transition);
}

.header-inner {
  display: grid;
  grid-template-columns: 220px 1fr 200px;
  align-items: center;
  height: 84px;
  gap: 20px;
}

.logo-brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  text-decoration: none;
  padding: 4px 0;
  border-radius: 8px;
  transition: var(--transition);
}

.logo-brand:hover {
  opacity: 0.9;
}

.logo-brand img.logotipo {
  height: 52px;
  width: auto;
  border-radius: 4px;
  object-fit: contain;
  mix-blend-mode: multiply;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  justify-self: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
  display: inline-block;
  padding: 6px 0;
}

.nav-links a:hover {
  color: var(--color-primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  justify-self: end;
  padding: 10px 22px;
  font-size: 0.9rem;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(90, 30, 36, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: #FFFFFF;
}

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 60px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(90, 30, 36, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 3.2rem;
  line-height: 1.15;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.hero-title span {
  color: var(--color-accent);
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 400;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-secondary);
  margin-bottom: 32px;
  max-width: 540px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-card-preview {
  position: relative;
}

.hero-card-frame {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 24px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  text-align: center;
  position: relative;
}

.hero-card-frame img.main-cover {
  width: 100%;
  max-width: 380px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s ease;
  mix-blend-mode: multiply;
}

.hero-card-frame:hover img.main-cover {
  transform: scale(1.02);
}

.hero-badge-floating {
  position: absolute;
  top: -12px;
  right: -12px;
  background: var(--color-primary);
  color: #F8F4EE;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 4 Pilares */
.pillars-section {
  padding: 50px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: #F4EFEB;
  scroll-margin-top: 90px;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pillar-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.pillar-icon {
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pillar-content h4 {
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.pillar-content p {
  font-size: 0.85rem;
  color: var(--color-secondary);
  line-height: 1.4;
}

/* Catálogo de Productos */
.catalog-section {
  padding: 90px 0;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-tag {
  color: var(--color-accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  margin-bottom: 8px;
  display: inline-block;
}

.section-title {
  font-size: 2.4rem;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.section-description {
  color: var(--color-secondary);
  font-size: 1.05rem;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 32px;
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 36px rgba(63, 19, 24, 0.12);
  border-color: var(--color-accent);
}

.product-thumb {
  position: relative;
  height: 220px;
  background: #F4ECE4;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .product-thumb img {
  transform: scale(1.08);
}

.product-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(90, 30, 36, 0.92);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  z-index: 2;
}

.product-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-category {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 6px;
}

.product-title {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.product-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 20px;
  flex-grow: 1;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.product-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.product-weight {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Sección Origen */
.origin-section {
  padding: 90px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.origin-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 60px;
}

.origin-text h2 {
  font-size: 2.3rem;
  margin-bottom: 20px;
}

.origin-text p {
  color: var(--color-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.origin-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}

.feature-box {
  background: var(--color-surface-soft);
  padding: 20px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-primary);
}

.feature-box strong {
  display: block;
  font-size: 1.05rem;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.feature-box span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* FAQ */
.faq-section {
  padding: 90px 0;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  cursor: pointer;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-primary);
}

.faq-question .icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--color-accent);
}

.faq-item.active .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding-top: 14px;
  color: var(--color-secondary);
  line-height: 1.6;
  font-size: 0.95rem;
  border-top: 1px dashed var(--color-border);
  margin-top: 12px;
}

.faq-item.active .faq-answer {
  display: block;
}

/* Contacto */
.contact-section {
  padding: 90px 0;
  background: var(--color-primary-dark);
  color: #F8F4EE;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-info-item strong {
  display: block;
  font-size: 0.9rem;
  color: #E6B89C;
  text-transform: uppercase;
}

.contact-info-item p {
  color: #FFFFFF;
  font-size: 1.05rem;
}

.contact-form {
  background: var(--color-surface);
  padding: 40px;
  border-radius: var(--radius-lg);
  color: var(--color-text-main);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-secondary);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  background: #FCFAF7;
  color: var(--color-text-main);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(90, 30, 36, 0.15);
}

.privacy-check {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

/* Footer */
.site-footer {
  background: var(--color-secondary);
  color: #D6CBC1;
  padding: 60px 0 30px;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #FFFFFF;
  margin-bottom: 18px;
  font-size: 1.1rem;
}

.footer-col p {
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  flex-wrap: wrap;
}

.footer-bottom-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.footer-separator {
  color: rgba(255, 255, 255, 0.4);
}

.footer-legal-link {
  color: #E8ECE9;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.footer-legal-link:hover {
  color: #E6B89C;
}

.footer-bottom-right {
  margin-left: auto;
  text-align: right;
}

/* Responsive */
@media (max-width: 992px) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
    gap: 16px;
  }
  .nav-links {
    gap: 18px;
  }
  .hero-grid,
  .origin-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-inner {
    display: flex;
    justify-content: space-between;
  }
  .nav-links {
    display: none;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .pillars-grid {
    grid-template-columns: 1fr;
  }
  .btn-scroll-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }
}

/* Botón flotante para volver arriba */
.btn-scroll-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(63, 19, 24, 0.3);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.btn-scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.btn-scroll-top:hover {
  background: var(--color-primary-dark);
  color: #E6B89C;
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(63, 19, 24, 0.4);
}