/* ==========================================================================
   Variables y Estilos Globales SID
   ========================================================================== */
:root {
    --primary: #89ceff;
    --primary-container: #0ea5e9;
    --secondary: #ffb0cd;
    --tertiary: #f7be1d;
    --background: #0f1418;
    --on-background: #dee3e9;
    --surface-container-high: #252b2f;
}

/* Efectos Glassmorphism y Neón */
.glass-card {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.neon-glow:hover {
    box-shadow: 0 0 15px rgba(14, 165, 233, 0.3);
}

.neon-text-primary {
    text-shadow: 0 0 10px rgba(137, 206, 255, 0.5);
}

/* ==========================================================================
   Navegación y Estados Activos
   ========================================================================== */
.nav-btn {
    color: #475569; /* slate-600 */
    font-weight: 500;
    padding-bottom: 0.25rem;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.dark .nav-btn {
    color: #94a3b8; /* slate-400 */
}

.nav-btn:hover {
    color: #0f172a; /* slate-900 */
}

.dark .nav-btn:hover {
    color: #ffffff;
}

/* Estado de enlace activo en escritorio */
.nav-btn.active {
    color: #0284c7 !important; /* sky-600 */
    font-weight: 700;
    border-bottom: 2px solid #0284c7;
}

.dark .nav-btn.active {
    color: #38bdf8 !important; /* sky-400 */
    border-bottom: 2px solid #38bdf8;
}

/* Enlaces versión móvil */
.nav-btn-mobile {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    font-weight: 600;
    color: #475569;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.dark .nav-btn-mobile {
    color: #94a3b8;
}

.nav-btn-mobile:hover {
    background-color: #f1f5f9;
    color: #0f172a;
}

.dark .nav-btn-mobile:hover {
    background-color: #121e28;
    color: #ffffff;
}

.nav-btn-mobile.active {
    background-color: #e0f2fe;
    color: #0284c7;
}

.dark .nav-btn-mobile.active {
    background-color: rgba(56, 189, 248, 0.15);
    color: #38bdf8;
}

/* ==========================================================================
   Animación del Menú Hamburguesa
   ========================================================================== */
#mobile-menu {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#mobile-menu.hidden {
    display: none;
    opacity: 0;
    transform: translateY(-10px);
}

#mobile-menu:not(.hidden) {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Botones Filtros Tabs (Pills) */
.tab-btn {
    background-color: transparent;
    border-color: rgba(148, 163, 184, 0.2); /* slate-400/20 */
    color: #94a3b8; /* slate-400 */
}

.tab-btn:hover {
    border-color: #38bdf8; /* sky-400 */
    color: #38bdf8;
}

.tab-btn.active {
    background-color: rgba(56, 189, 248, 0.15);
    border-color: #38bdf8;
    color: #38bdf8;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

/* Transición para resaltar la tarjeta objetivo */
article {
    transition: all 0.3s ease-in-out;
}