/* style.css - Pieles Cham Web App Vanilla CSS */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,700;1,400&family=Manrope:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');

:root {
  /* Tonal Palette based on Frontier Minimalist Design */
  --surface: #f9f9f8;
  --surface-container-low: #f2f4f3;
  --surface-container: #ebeeed;
  --surface-container-high: #e4e9e8;
  --surface-container-highest: #dde4e3;
  --surface-container-lowest: #ffffff;
  
  --primary: #5e5e5e;
  --primary-dim: #525252;
  --on-primary: #f8f8f8;

  --on-surface: #2d3433;
  --on-surface-variant: #5a6060;

  --outline: #757c7b;
  --outline-variant: #adb3b2;
  
  --inverse-surface: #0c0f0e;
  --inverse-on-surface: #9c9d9c;

  /* Typography */
  --font-headline: 'Noto Serif', serif;
  --font-body: 'Manrope', sans-serif;

  /* Radii */
  --rad-DEFAULT: 1rem;
  --rad-lg: 2rem;
  --rad-xl: 3rem;
  --rad-full: 9999px;

  /* Shadows (Ambient Occlusion style) */
  --shadow-float: 0 20px 40px rgba(45, 52, 51, 0.06);
  --shadow-heavy: 0 40px 80px rgba(0, 0, 0, 0.1);
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--surface);
    color: var(--on-surface);
    overflow-x: hidden;
    scroll-behavior: smooth;
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4, h5, .font-serif {
    font-family: var(--font-headline);
}

a { text-decoration: none; color: inherit; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* Utilities */
.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}
.colombian-gradient {
    /* Amarilo, Azul, Rojo */
    background: linear-gradient(to right, #FCD116 33.3%, #003893 33.3%, #003893 66.6%, #CE1126 66.6%);
}
.glass-nav {
    background-color: rgba(249, 249, 248, 0.8);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(173, 179, 178, 0.15); /* Ghost border */
}

.text-uppercase { text-transform: uppercase; letter-spacing: 0.15em; }
.tracking-widest { letter-spacing: 0.3em; }

/* Layouts */
.max-w-screen {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Floating Navigation */
.top-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 50;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    transition: transform 0.3s ease;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
    font-weight: 500;
    font-size: 0.8rem;
}

.nav-link {
    color: var(--on-surface-variant);
    transition: color 0.3s ease;
    cursor: pointer;
}
.nav-link:hover, .nav-link.active {
    color: var(--on-surface);
}

/* Botón Invertido (Pagar Factura) */
.nav-btn-highlight {
    background-color: var(--inverse-surface);
    color: var(--on-primary);
    padding: 0.6rem 1.5rem;
    border-radius: var(--rad-full);
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.nav-btn-highlight:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-float);
}

/* Language Selector */
.lang-selector {
    position: relative;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Views Container */
#app-views > section {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}
#app-views > section.active {
    display: block;
    opacity: 1;
}

/* --- Sections --- */

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: flex-end;
    padding-bottom: 6rem;
    position: relative;
}
.hero-bg {
    position: absolute;
    inset: 0;
    object-fit: cover;
    width: 100%;
    height: 100%;
    z-index: -1;
}
.hero-content {
    background: linear-gradient(to top, rgba(249, 249, 248, 1) 0%, rgba(249, 249, 248, 0) 100%);
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-text {
    position: relative;
    z-index: 1;
}
.hero-title {
    font-size: clamp(4rem, 8vw, 10rem);
    line-height: 1;
    letter-spacing: -0.05em;
    mix-blend-mode: multiply;
}

/* Catalogo / Masonry (Inicio Cajas) */
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2px;
    background-color: var(--surface-container-high); /* Lineas divisorias */
}
.catalog-item {
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}
/* Harmonía tonal: Cajas de colores intercalados */
.catalog-item:nth-child(odd) {
    background-color: var(--surface-container-low); /* Gris claro */
}
.catalog-item:nth-child(even) {
    background-color: var(--surface-container-highest); /* Gris oscuro */
}

.catalog-img-wrapper {
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1 / 1;
}
.catalog-item img {
    transition: transform 0.8s ease;
}
.catalog-item:hover img {
    transform: scale(1.08);
}
.btn-details {
    padding: 1.5rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--on-surface);
    transition: background-color 0.3s ease;
}
.catalog-item:nth-child(odd) .btn-details { background-color: var(--surface); }
.catalog-item:nth-child(even) .btn-details { background-color: var(--surface-container); }
.catalog-item:hover .btn-details { background-color: var(--primary); color: var(--on-primary); }

/* Detalle Producto */
.product-detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
    padding-top: 6rem;
}
@media (max-width: 768px) {
    .product-detail-layout { grid-template-columns: 1fr; }
}
.img-showcase {
    background: var(--surface-container-low);
    display: flex; align-items: center; justify-content: center;
    padding: 4rem;
}
.info-showcase {
    padding: 4rem;
    display: flex; flex-direction: column; justify-content: center;
}

/* Footer Premium */
.footer-lux {
    background-color: var(--surface-container-lowest);
    border-radius: var(--rad-xl) var(--rad-xl) 0 0;
    padding: 4rem 2rem;
    text-align: center;
    margin-top: 4rem;
    position: relative;
}
.footer-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 2rem;
}
.dot {
    width: 8px; height: 8px; border-radius: 50%;
}
.dot.yellow { background-color: #FCD116; }
.dot.blue { background-color: #003893; }
.dot.red { background-color: #CE1126; }

/* Helpers */
.mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.text-center { text-align: center; }
.text-white { color: #fff; }
.pill-btn {
    padding: 1rem 2rem;
    border-radius: var(--rad-full);
    background-color: var(--primary);
    color: var(--on-primary);
    font-weight: 600;
    display: inline-block;
    transition: transform 0.3s ease;
}
.pill-btn:hover { transform: scale(1.05); }

/* Animation Utils */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease, transform 1s ease;
}
.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}