/* ==========================================================================
   MAGNA TERRESIS - HOJA DE ESTILOS PREMIUM
   ========================================================================== */

/* 1. Arquitectura de Capas CSS Nativa */
@layer reset, base, theme, components, utilities;

@layer reset {
  /* Reset moderno y amigable con accesibilidad */
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

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

  body {
    min-height: 100vh;
    text-rendering: optimizeSpeed;
    line-height: 1.5;
  }

  img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
    height: auto;
  }

  iframe {
    display: block;
    border: none;
  }

  button, input, select, textarea {
    font: inherit;
  }

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

@layer base {
  /* Tipografía y bases generales */
  body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
  }

  h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    color: var(--text-heading);
    font-weight: 600;
    line-height: 1.25;
    text-wrap: balance; /* Envoltura equilibrada nativa */
  }

  p {
    color: var(--text-secondary);
    text-wrap: pretty; /* Envoltura elegante para párrafos */
  }

  /* Personalización elegante del scrollbar nativo */
  html {
    scrollbar-color: var(--accent-gold-dim) var(--bg-primary);
    scrollbar-width: thin;
  }
}

@layer theme {
  /* Tokens de diseño y Paleta de Colores de Lujo */
  :root {
    /* Colores base HSL */
    --hue-gold: 38;
    --hue-bg: 220;

    --bg-primary: hsl(var(--hue-bg), 15%, 8%);
    --bg-secondary: hsl(var(--hue-bg), 12%, 12%);
    --bg-tertiary: hsl(var(--hue-bg), 10%, 16%);
    
    --text-primary: hsl(var(--hue-gold), 20%, 94%);
    --text-secondary: hsl(var(--hue-bg), 8%, 76%);
    --text-muted: hsl(var(--hue-bg), 6%, 50%);
    --text-heading: hsl(var(--hue-gold), 30%, 96%);

    /* Acentos oro/bronce metalizados */
    --accent-gold: hsl(var(--hue-gold), 60%, 55%);
    --accent-gold-hover: hsl(var(--hue-gold), 75%, 65%);
    --accent-gold-dim: hsl(var(--hue-gold), 35%, 25%);
    --accent-gold-soft: hsla(var(--hue-gold), 60%, 55%, 0.1);
    
    /* Efecto Glassmorphism */
    --glass-bg: hsla(var(--hue-bg), 15%, 10%, 0.7);
    --glass-border: hsla(var(--hue-gold), 50%, 55%, 0.18);
    --glass-border-hover: hsla(var(--hue-gold), 75%, 65%, 0.35);

    /* Sombras realistas en capas */
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --shadow-heavy: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    --shadow-border: 0 0 0 1px var(--glass-border);

    /* Bordes */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Transiciones */
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-fast: all 0.15s ease;
  }
}

@layer components {
  /* Cabecera del sitio */
  .site-header {
    background: linear-gradient(to bottom, rgba(0,0,0,0.8) 0%, transparent 100%);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    padding: 1.5rem 0;
  }

  .header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .brand-logo {
    width: 2.75rem;
    height: 2.75rem;
    color: var(--accent-gold);
    transition: var(--transition-smooth);
  }

  .brand:hover .brand-logo {
    transform: rotate(18deg) scale(1.05);
    color: var(--accent-gold-hover);
  }

  .brand-text {
    display: flex;
    flex-direction: column;
  }

  .brand-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-heading);
    line-height: 1.2;
  }

  .brand-subtitle {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    text-transform: uppercase;
  }

  .client-badge {
    background: var(--accent-gold-soft);
    border: 1px solid var(--glass-border);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(8px);
  }

  .badge-dot {
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--accent-gold);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-gold);
  }

  .badge-text {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent-gold);
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }

  /* Sección Héroe */
  .hero-section {
    position: relative;
    min-height: 55vh;
    display: flex;
    align-items: flex-end;
    padding: 8rem 2rem 4rem;
    background-image: linear-gradient(rgba(10, 11, 14, 0.4), rgba(10, 11, 14, 0.95)), url('assets/borobia.png');
    background-size: cover;
    background-position: center;
    overflow: hidden;
  }

  .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(212, 175, 55, 0.08) 0%, transparent 60%);
    pointer-events: none;
  }

  .hero-content {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    z-index: 2;
  }

  .hero-title {
    font-size: clamp(2.5rem, 1rem + 5vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-heading) 30%, var(--accent-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .hero-lead {
    font-size: clamp(1.05rem, 0.95rem + 0.5vw, 1.25rem);
    max-width: 680px;
    margin-bottom: 2.5rem;
    font-weight: 300;
    line-height: 1.6;
  }

  .hero-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 2rem;
  }

  .meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .meta-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }

  .meta-value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
  }

  /* Contenido principal y Grid de Tarjetas */
  .main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 5rem;
  }

  /* Tarjetas de Sesiones - Rediseño Minimalista y Refinado */
  .session-card {
    display: grid;
    grid-template-columns: 1.4fr 1fr; /* Mayor peso a la información, visor compacto */
    gap: 4rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2.5rem 3rem;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(16px);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    align-items: center;
    
    /* Optimización de renderizado offscreen */
    content-visibility: auto;
    contain-intrinsic-block-size: auto 550px;
  }

  /* Sutil halo de luz en hover */
  .session-card::after {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 150%;
    background: var(--bg-cover) no-repeat center;
    background-size: cover;
    opacity: 0.015;
    filter: blur(80px);
    pointer-events: none;
    z-index: -1;
    transition: var(--transition-smooth);
  }

  .session-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.6), 0 0 0 1px hsla(var(--hue-gold), 50%, 55%, 0.08);
  }

  .session-card:hover::after {
    opacity: 0.03;
    transform: scale(1.02);
  }

  /* Info de la Sesión */
  .session-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .session-header {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 1.25rem;
  }

  .session-number {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent-gold);
    letter-spacing: 0.3em;
    text-transform: uppercase;
  }

  .session-title {
    font-size: clamp(1.75rem, 1.35rem + 1.2vw, 2.5rem);
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 0.25rem;
  }

  .session-tag {
    align-self: flex-start;
    font-size: 0.65rem;
    font-weight: 500;
    background-color: var(--bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }

  .session-description {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-weight: 300;
    color: var(--text-secondary);
  }

  .session-specs {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 2rem;
    border-left: 2px solid var(--accent-gold-dim);
    padding-left: 1.25rem;
  }

  .session-specs li {
    font-size: 0.8rem;
    color: var(--text-secondary);
  }

  .session-specs strong {
    color: var(--text-primary);
    font-weight: 500;
  }

  /* Botones Ultra Elegantes Estilo Outline */
  .session-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition-smooth);
    min-inline-size: 44px;
    min-block-size: 44px;
  }

  .btn-icon {
    width: 0.9rem;
    height: 0.9rem;
    transition: var(--transition-fast);
  }

  /* Botón Primario: Outline Fino Dorado */
  .btn-primary {
    background-color: transparent;
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    box-shadow: none;
  }

  .btn-primary:hover:not(:disabled) {
    background-color: var(--accent-gold-soft);
    border-color: var(--accent-gold-hover);
    color: var(--accent-gold-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.08);
  }

  .btn-primary:hover .btn-icon {
    transform: translateX(1px);
  }

  /* Botón Secundario: Outline Fino Gris/Plata */
  .btn-secondary {
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
  }

  .btn-secondary:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.25);
    color: var(--text-primary);
    transform: translateY(-1px);
  }

  .btn-secondary:hover .btn-icon {
    transform: translateY(1px);
  }

  /* Visores de Portada Compactos y de Alta Gama */
  .session-viewer {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    justify-content: center;
    max-width: 420px; /* Tamaño controlado y sofisticado */
    width: 100%;
    margin-inline-start: auto; /* Alinear a la derecha */
  }

  .viewer-link-wrapper {
    position: relative;
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10; /* Proporción elegante */
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
    background-color: var(--bg-secondary);
    transition: var(--transition-smooth);
  }

  .viewer-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
  }

  .viewer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 11, 14, 0.25); /* Muy sutil para no tapar la foto */
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
  }

  /* Etiqueta flotante minimalista en la esquina superior */
  .viewer-overlay::before {
    content: "CAPTURE 3D";
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--accent-gold);
    background: rgba(10, 11, 14, 0.8);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
  }

  /* Botón circular glassmorphic en el centro */
  .play-button {
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 50%;
    background: rgba(10, 11, 14, 0.75);
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
    transition: var(--transition-smooth);
  }

  .play-button svg {
    width: 1.1rem;
    height: 1.1rem;
  }

  /* Hover del Visor */
  .viewer-link-wrapper:hover {
    transform: translateY(-2px);
    border-color: var(--accent-gold);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
  }

  .viewer-link-wrapper:hover .viewer-thumbnail {
    transform: scale(1.03);
    filter: brightness(0.9);
  }

  .viewer-link-wrapper:hover .viewer-overlay {
    background: rgba(10, 11, 14, 0.4);
  }

  .viewer-link-wrapper:hover .play-button {
    background-color: var(--accent-gold);
    color: hsl(var(--hue-bg), 20%, 5%);
    box-shadow: 0 0 20px hsla(var(--hue-gold), 75%, 65%, 0.45);
    transform: scale(1.05);
  }

  .viewer-caption {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    padding-left: 0.1rem;
    transition: var(--transition-smooth);
  }

  .viewer-dot {
    width: 0.35rem;
    height: 0.35rem;
    background-color: var(--accent-gold);
    border-radius: 50%;
    box-shadow: 0 0 4px var(--accent-gold);
  }



  /* Pie de página */
  .site-footer {
    background-color: rgba(10, 11, 14, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 3rem 0;
    margin-top: 4rem;
  }

  .footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
  }

  .footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .footer-logo-text {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--accent-gold);
  }

  .footer-copy {
    font-size: 0.75rem;
    color: var(--text-muted);
  }

  .footer-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
  }

  /* Modal de Fallback Elegante (<dialog>) */
  .dialog-modal {
    border: none;
    border-radius: var(--radius-lg);
    background: transparent;
    max-width: 500px;
    width: calc(100% - 2rem);
    margin: auto;
    padding: 0;
    box-shadow: var(--shadow-heavy);
  }

  .dialog-modal::backdrop {
    background-color: rgba(10, 11, 14, 0.85);
    backdrop-filter: blur(8px);
  }

  .modal-box {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .modal-header {
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .modal-icon {
    width: 2rem;
    height: 2rem;
    color: var(--accent-gold);
  }

  .modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-heading);
  }

  .modal-body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-size: 0.95rem;
    line-height: 1.5;
  }

  .modal-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1rem;
    margin-top: 0.5rem;
  }

  .modal-footer {
    display: flex;
    justify-content: flex-end;
  }

  .modal-footer .btn {
    padding: 0.75rem 1.5rem;
  }
}

@layer utilities {
  /* Enfoque visible adaptado */
  :focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 4px;
  }

  /* Soporte elegante para reducción de movimiento */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
      scroll-behavior: auto !important;
    }
    
    .session-card:hover {
      transform: none;
    }
  }

  /* Soporte de accesibilidad para alto contraste de Windows */
  @media (forced-colors: active) {
    .btn-primary, .btn-secondary {
      border: 2px solid ButtonText;
      background: Canvas;
      color: CanvasText;
    }
    
    .site-header, .session-card, .modal-box {
      border: 1px solid CanvasText;
      background: Canvas;
    }
    
    .brand-logo, .btn-icon, .modal-icon {
      color: CanvasText;
    }
  }
}

/* ==========================================================================
   MEDIA QUERIES / RESPONSIVE DESIGN (CONTAINER & VIEWPORT)
   ========================================================================== */

/* Consulta de contenedor en el cuerpo o secciones principales */
@container (max-width: 900px) {
  .session-card {
    grid-template-columns: 1fr;
    padding: 2rem;
    gap: 2rem;
  }
}

/* Media queries responsivos tradicionales para viewport */
@media (max-width: 1024px) {
  .session-card {
    grid-template-columns: 1fr;
    padding: 2.5rem;
    gap: 2.5rem;
  }
  
  .hero-section {
    min-height: 45vh;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 0 1.25rem;
    justify-content: center;
  }
  
  .client-badge {
    display: none; /* Simplificación en pantallas muy pequeñas */
  }

  .hero-section {
    padding: 7rem 1.25rem 3rem;
  }

  .main-content {
    padding: 2.5rem 1.25rem;
    gap: 3rem;
  }

  .session-card {
    padding: 1.75rem;
    border-radius: var(--radius-md);
  }

  .session-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .viewer-wrapper {
    aspect-ratio: 4 / 3; /* Más cómodo en móviles verticales */
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
    align-items: center;
    padding: 0 1.25rem;
  }
}