:root {
    --bg-principal: #111111;
    --bg-secundario: #1a1a1a;
    --bg-tarjeta: #1f1f1f;
    --bg-elevado: #242424;
    --teal-oscuro: #004D4D;
    --teal-medio: #006666;
    --teal-vibrante: #00AAAA;
    --aqua-claro: #00CCCC;
    --aqua-brillante: #00EEFF;
    --texto-primario: #F0F0F0;
    --texto-secundario: #B0C8C8;
    --texto-sutil: #667A7A;
    --texto-enfasis: #00CCCC;
    --borde-sutil: rgba(0,170,170,0.18);
    --borde-medio: rgba(0,170,170,0.35);
    --borde-fuerte: rgba(0,204,204,0.6);
    --sombra-aqua: 0 4px 24px rgba(0,204,204,0.12);
    --sombra-profunda: 0 8px 40px rgba(0,0,0,0.6);
    --gradiente-teal: linear-gradient(135deg,#004D4D 0%,#00AAAA 60%,#00CCCC 100%);
    --gradiente-acento: linear-gradient(90deg,#00AAAA,#00CCCC);
}

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

/* ════════════════════════════════════════
   FASE 1 — SPLASH (una imagen aleatoria)
   ════════════════════════════════════════ */
#fase-carrusel {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    overflow: hidden;
    opacity: 1;
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
    position: absolute;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-slide img {
    display: block;
    max-height: 100dvh;
    max-width: 100vw;
    width: auto;
    height: auto;
}

/* Barra de progreso del splash */
#carrusel-progress {
    position: fixed;
    bottom: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: var(--gradiente-acento);
    z-index: 200;
    transition: width linear;
    box-shadow: 0 0 12px rgba(0,204,204,0.6);
}

/* ════════════════════════════════════════
   FASE 2 — PORTAL (tarjetas de números)
   ════════════════════════════════════════ */
#fase-portal {
    display: block;
    min-height: 100vh;
    background-color: var(--bg-principal);
    background-image:
        radial-gradient(ellipse at 80% 10%, rgba(0,77,77,0.18) 0%, transparent 55%),
        radial-gradient(ellipse at 10% 90%, rgba(0,102,102,0.12) 0%, transparent 50%);
    font-family: 'Lato', 'Helvetica Neue', Helvetica, sans-serif;
    color: var(--texto-primario);
    -webkit-font-smoothing: antialiased;
    opacity: 0;
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

#fase-portal.visible {
    opacity: 1;
}

/* ── Header del portal ── */
.portal-header {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 28px 24px 20px;
    border-bottom: 1px solid var(--borde-sutil);
    position: relative;
}

.portal-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 2px;
    background: var(--gradiente-acento);
}

.portal-logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--aqua-claro);
}

.portal-logo span {
    color: var(--texto-sutil);
    font-weight: 400;
    margin-left: 8px;
    letter-spacing: 0.08em;
}

/* ── Título sección números ── */
.numeros-titulo {
    font-family: 'Montserrat', sans-serif;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--texto-sutil);
    padding: 32px 24px 16px;
    max-width: 960px;
    margin: 0 auto;
}

/* ── Grid de tarjetas ── */
.numeros-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    padding: 0 24px 80px;
    max-width: 960px;
    margin: 0 auto;
}

@media (min-width: 960px) {
    .numeros-grid   { max-width: 100%; padding: 0 28px 80px; }
    .numeros-titulo { max-width: 100%; padding-left: 28px; }
}

.card-numero {
    cursor: pointer;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--borde-sutil);
    background: var(--bg-tarjeta);
    box-shadow: var(--sombra-aqua);
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
    aspect-ratio: 9/16;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-numero:hover {
    transform: translateY(-4px) scale(1.02);
    border-color: var(--teal-vibrante);
    box-shadow: 0 8px 32px rgba(0,170,170,0.25);
}

.card-numero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.3s;
}

.sin-numeros {
    color: var(--texto-sutil);
    font-size: 14px;
    padding: 40px;
    text-align: center;
    grid-column: 1/-1;
}

/* ── Botón hamburger (flotante) - ESTILO V07 ── */
#btn-hamburger {
    position: fixed;
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    background: rgba(0,77,77,0.85);
    border: 1px solid var(--borde-medio);
    border-radius: 8px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    z-index: 300;
    transition: background 0.2s, border-color 0.2s;
    opacity: 0;
    visibility: hidden;
}

#btn-hamburger.visible {
    opacity: 1;
    visibility: visible;
}

#btn-hamburger:hover {
    background: rgba(0,102,102,0.9);
    border-color: var(--aqua-claro);
}

.ham-line {
    width: 20px;
    height: 2px;
    background: var(--aqua-claro);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform-origin: center;
}

#btn-hamburger.open .ham-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#btn-hamburger.open .ham-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
#btn-hamburger.open .ham-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Menú cortina - ESTILO V07 (funcional y limpio) ── */
#overlay-menu {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0);
    z-index: 250;
    pointer-events: none;
    transition: background 0.35s ease;
}

#overlay-menu.open {
    background: rgba(0,0,0,0.55);
    pointer-events: all;
}

#menu-cortina {
    position: fixed;
    top: 0;
    left: 0;
    width: 60vw;
    max-width: 60vw;
    height: 100vh;
    height: 100dvh;
    background: var(--bg-secundario);
    border-right: 1px solid var(--borde-medio);
    z-index: 260;
    transform: translateX(-100%);
    transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    box-shadow: 4px 0 32px rgba(0,0,0,0.5);
}

#menu-cortina.open {
    transform: translateX(0);
}

.menu-header {
    padding: 28px 24px 20px;
    border-bottom: 1px solid var(--borde-sutil);
}

.menu-brand {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--aqua-claro);
    font-size: 22px;
    letter-spacing: 0.2em;
}

.menu-brand-sub {
    font-family: 'Montserrat', sans-serif;
    font-weight: 400;
    color: var(--texto-sutil);
    font-size: 15px;
    text-transform: uppercase;
    margin-top: 3px;
}

.menu-nav {
    padding: 20px 0;
    flex: 1;
    overflow-y: auto;
}

.menu-item {
    display: block;
    padding: 13px 24px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--texto-primario);
    text-decoration: none;
    cursor: pointer;
    font-size: 16px;
    border-left: 3px solid transparent;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.menu-item:hover {
    background: rgba(0,77,77,0.3);
    color: var(--aqua-claro);
    border-left-color: var(--teal-vibrante);
}

.menu-group {
    border-top: 1px solid var(--borde-sutil);
    margin-top: 4px;
}

.menu-group-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 24px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--texto-primario);
    text-decoration: none;
    cursor: pointer;
    font-size: 16px;
    border-left: 3px solid transparent;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    user-select: none;
}

.menu-group-label:hover {
    background: rgba(0,77,77,0.3);
    color: var(--aqua-claro);
    border-left-color: var(--teal-vibrante);
}

.menu-chevron {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    transition: transform 0.25s ease;
    color: var(--texto-sutil);
}

.menu-group.open .menu-chevron { transform: rotate(180deg); }

.menu-subitems {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.35s ease;
    background: rgba(0,0,0,0.1);
}

.menu-group.open .menu-subitems {
    max-height: var(--items-max-h, 300px);
}

.menu-subitem {
    display: block;
    padding: 12px 20px 12px 34px;
    font-family: 'Lato', sans-serif;
    font-size: 18px;
    color: var(--texto-secundario);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
    line-height: 1.4;
    border-left: 3px solid transparent;
}

.menu-subitem::before {
    content: '–';
    margin-right: 8px;
    color: var(--teal-vibrante);
    font-size: 14px;
}

.menu-subitem:hover {
    background: rgba(0,77,77,0.2);
    color: var(--aqua-claro);
}

.menu-subitem-vacio { 
    font-style: italic; 
    color: var(--texto-sutil); 
    cursor: default;
}

.menu-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--borde-sutil);
    font-family: 'Montserrat', sans-serif;
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--texto-sutil);
    text-align: center;
}

/* ════════════════════════════════════════
   LIGHTBOX
   ════════════════════════════════════════ */
#lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.92);
    z-index: 400;
    display: none;
    justify-content: center;
    align-items: center;
    padding: 20px;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: lb-in 0.25s ease forwards;
}

@keyframes lb-in { from { opacity: 0; } to { opacity: 1; } }

#lightbox.activo { display: flex; }

#lightbox img {
    max-height: calc(100dvh - 40px);
    width: auto;
    max-width: calc(100vw - 40px);
    object-fit: contain;
    border: 1px solid var(--borde-medio);
    border-radius: 6px;
    box-shadow: 0 0 60px rgba(0,170,170,0.2), var(--sombra-profunda);
    animation: lb-scale 0.3s cubic-bezier(0.34,1.56,0.64,1) forwards;
}

@keyframes lb-scale { from { transform: scale(0.88); } to { transform: scale(1); } }

#lightbox-cerrar {
    position: fixed;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    background: rgba(0,77,77,0.85);
    border: 1px solid var(--borde-medio);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--aqua-claro);
    font-size: 18px;
    z-index: 410;
    backdrop-filter: blur(4px);
}

/* MEDIA QUERIES - Estilo V02 para tarjetas, V07 para menú */
@media (max-width: 500px) {
    .numeros-grid { grid-template-columns: repeat(1, 1fr); gap: 10px; padding: 0 14px 80px; }
    #menu-cortina { width: 80vw; max-width: 80vw; }
}
@media (min-width: 501px) and (max-width: 600px) {
    .numeros-grid { grid-template-columns: repeat(2, 1fr); }
    #menu-cortina { width: 70vw; max-width: 70vw; }
}
@media (min-width: 601px) and (max-width: 699px) {
    .numeros-grid { grid-template-columns: repeat(3, 1fr); }
    #menu-cortina { width: 60vw; max-width: 60vw; }
}
@media (min-width: 700px) and (max-width: 959px) {
    .numeros-grid { grid-template-columns: repeat(4, 1fr); }
    #menu-cortina { width: 50vw; max-width: 50vw; }
}
@media (min-width: 960px) {
    #menu-cortina { width: 400px; max-width: 400px; }
}