/* Variables de color */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --accent-color: #ffc107;
    --dark-color: #212529;
    --light-color: #f8f9fa;
}

.hero-section {
    background: linear-gradient(rgba(13, 110, 253, 0.85), rgba(10, 80, 180, 0.9)), 
                url('../assets/images/hero-bg.jpg') center/cover no-repeat;
    min-height: 80vh;
    padding-top: 70px;
}

/* Efectos hover */
.hover-shadow {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hover-shadow:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15) !important;
}

/* Tipografía */
.fw-bold {
    font-weight: 700 !important;
}

/* Utilidades personalizadas */
.text-primary {
    color: var(--primary-color) !important;
}
.text-warning {
    color: var(--accent-color) !important;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        min-height: 70vh;
        text-align: center !important;
    }
    .display-4 {
        font-size: 2.5rem !important;
    }
}

/* Accesibilidad */
a:focus, button:focus {
    outline: 2px solid var(--accent-color) !important;
    outline-offset: 2px;
}

/* Animaciones sutiles */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.card {
    animation: fadeIn 0.4s ease-out;
}