/* ============================================
   TEMA DEFAULT - GestiObra
   ============================================
   Variables CSS base. Cada cliente puede tener
   su propio theme.css que sobrescribe estas.
   ============================================ */

:root {
    /* Colores primarios (sobrescribibles por tema del cliente) */
    --client-primary: #1e40af;
    --client-primary-light: #3b82f6;
    --client-primary-dark: #1e3a8a;
    
    --client-secondary: #059669;
    --client-secondary-light: #10b981;
    --client-secondary-dark: #047857;
    
    /* Gradientes */
    --client-gradient: linear-gradient(135deg, var(--client-primary) 0%, var(--client-primary-light) 50%, var(--client-secondary) 100%);
    --client-gradient-subtle: linear-gradient(135deg, var(--client-primary) 0%, var(--client-secondary) 100%);
    
    /* Neutros */
    --color-blanco: #ffffff;
    --color-gris-claro: #f3f4f6;
    --color-gris-medio: #6b7280;
    --color-gris-oscuro: #1f2937;
    
    /* Estados */
    --color-exito: var(--client-secondary);
    --color-advertencia: #f59e0b;
    --color-peligro: #dc2626;
    --color-info: var(--client-primary-light);
    
    /* Espaciado */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 20px rgba(0,0,0,0.2);
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar-custom {
    background: var(--client-gradient) !important;
    box-shadow: var(--shadow-md);
}

.navbar-brand img.logo-empresa {
    height: 60px;
    width: auto;
    margin-right: 15px;
}

.navbar-brand img.logo-secundario {
    height: 50px;
    width: auto;
    margin-left: 15px;
    margin-right: 15px;
    border-left: 2px solid rgba(255,255,255,0.3);
    padding-left: 15px;
}

/* ============================================
   BOTONES
   ============================================ */
.btn-primary-custom {
    background: linear-gradient(135deg, var(--client-primary), var(--client-primary-light));
    border: none;
    color: white;
    padding: 10px 20px;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary-custom:hover {
    background: linear-gradient(135deg, var(--client-primary-light), var(--client-secondary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white;
}

.btn-success-custom {
    background: linear-gradient(135deg, var(--client-secondary), var(--client-secondary-light));
    border: none;
    color: white;
    padding: 10px 20px;
    border-radius: var(--border-radius-md);
    font-weight: 500;
}

.btn-success-custom:hover {
    background: linear-gradient(135deg, var(--client-secondary-light), var(--client-secondary));
    transform: translateY(-2px);
    color: white;
}

/* ============================================
   CARDS
   ============================================ */
.card-primary, .card-azul {
    border-top: 4px solid var(--client-primary);
}

.card-secondary, .card-verde {
    border-top: 4px solid var(--client-secondary);
}

.menu-card {
    text-align: center;
    padding: 30px 20px;
    transition: all 0.3s ease;
    cursor: pointer;
    border-radius: var(--border-radius-lg);
    border: 2px solid transparent;
}

.menu-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--client-primary-light);
}

.menu-card i {
    color: var(--client-primary);
}

.menu-card.secondary i, .menu-card.verde i {
    color: var(--client-secondary);
}

.menu-card.secondary:hover, .menu-card.verde:hover {
    border-color: var(--client-secondary);
}

/* ============================================
   NAVEGACIÓN POR MÓDULOS
   ============================================ */
.nav-modules {
    background: white;
    border-bottom: 2px solid #e5e7eb;
    padding: 0;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.nav-modules .nav-link {
    color: var(--color-gris-oscuro);
    padding: 1rem 1.5rem;
    border: none;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.nav-modules .nav-link:hover {
    background-color: #f3f4f6;
    border-bottom-color: var(--client-secondary);
}

.nav-modules .nav-link.active {
    color: var(--client-primary);
    background-color: rgba(30, 64, 175, 0.1);
    border-bottom-color: var(--client-primary);
}

.nav-modules .nav-link i {
    font-size: 1.2rem;
}

/* ============================================
   TABLAS
   ============================================ */
.table thead {
    background: var(--client-gradient-subtle);
    color: white;
}

/* ============================================
   BADGES
   ============================================ */
.badge-primary, .badge-azul {
    background-color: var(--client-primary) !important;
}

.badge-secondary, .badge-verde {
    background-color: var(--client-secondary) !important;
}

/* ============================================
   SEPARADOR
   ============================================ */
.separador-custom {
    height: 3px;
    background: var(--client-gradient-subtle);
    margin: 2rem 0;
    border-radius: 2px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer-custom {
    background: linear-gradient(135deg, var(--color-gris-oscuro) 0%, var(--client-primary) 100%);
    color: white;
    padding: 20px 0;
}

/* ============================================
   HERO (Landing)
   ============================================ */
.hero-overlay {
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.85), rgba(5, 150, 105, 0.75));
}

.btn-access {
    background: white;
    color: var(--client-primary);
    padding: 1rem 3rem;
    font-size: 1.2rem;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.btn-access:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.4);
    background: var(--client-secondary);
    color: white;
}

/* ============================================
   ALERTAS
   ============================================ */
.alert-custom-info {
    background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(5,150,105,0.1));
    border-left: 4px solid var(--client-primary);
    color: var(--color-gris-oscuro);
}

/* ============================================
   FORMULARIOS
   ============================================ */
.form-control:focus,
.form-select:focus {
    border-color: var(--client-primary);
    box-shadow: 0 0 0 0.25rem rgba(30, 64, 175, 0.25);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .navbar-brand img.logo-empresa,
    .navbar-brand img.logo-secundario {
        height: 35px;
    }
    
    .nav-modules .nav-link {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }
    
    .menu-card {
        padding: 20px 15px;
        margin-bottom: 15px;
    }
}

/* ============================================
   ANIMACIONES
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.contenedor-principal {
    animation: fadeInUp 0.5s ease;
}