/* Paleta de Colores: Azul Noche y Oro */
:root {
    --navy-dark: #050e1a;
    --navy-blue: #0a192f;
    --gold: #d4af37;
    --gold-hover: #b5952f;
    --text-white: #ffffff;
    --text-muted: #a8b2d1;
}

body {
    background-color: var(--navy-dark);
    font-family: 'Montserrat', sans-serif;
    color: var(--text-muted);
}

.font-serif {
    font-family: 'Cinzel', serif;
}

.bg-navy { background-color: var(--navy-dark); }
.bg-dark-blue { background-color: var(--navy-blue); }
.text-gold { color: var(--gold) !important; }
.text-muted-light { color: var(--text-muted); }

/* Botones Dorados */
.btn-gold {
    background: linear-gradient(135deg, #d4af37 0%, #f3d472 50%, #d4af37 100%);
    color: #000;
    border: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
    color: #000;
}

/* Hero Section */
.hero-section {
    min-height: 80vh;
    background: url('fondo_cartel.png') no-repeat center center/cover;
    position: relative;
}

.hero-section .overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(5,14,26,0.8), rgba(5,14,26,0.9));
    z-index: 1;
}

/* Speaker Images */
.speaker-img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid var(--gold);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.2);
}

/* Bordes y Cajas */
.border-gold { border: 2px solid var(--gold); }
.border-gold-thin { border: 1px solid rgba(212, 175, 55, 0.3); }
.border-gold-top { border-top: 1px solid rgba(212, 175, 55, 0.3); }

.info-box {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(5px);
}

/* Filtros para Logos */
.filter-gold { filter: invert(77%) sepia(31%) saturate(836%) hue-rotate(359deg) brightness(90%) contrast(88%); }
.filter-white { filter: brightness(0) invert(1); }

/* Botones Outline Dorados */
.btn-outline-gold {
    color: var(--gold);
    border: 2px solid var(--gold);
    background: transparent;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline-gold:hover {
    background-color: var(--gold);
    color: var(--navy-dark);
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.4);
}

/* Estilos Personalizados para Modales Oscuros */
.modal-content.bg-navy {
    background-color: var(--navy-dark);
    border: 1px solid var(--gold);
    box-shadow: 0 10px 40px rgba(0,0,0,0.8);
}

.modal-header {
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.btn-close-white {
    filter: invert(1) grayscale(100%) brightness(200%);
}