/* Estilos generales */
:root {
    --primary-color: #0d6efd;
    --primary-hover: #0b5ed7;
    --text-light: #f8f9fa;
    --text-dark: #212529;
    --bg-light: #f8f9fa;
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navbar */
.navbar {
    box-shadow: var(--shadow-md);
    padding: 0.75rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
}

.navbar-brand i {
    font-size: 1.75rem;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85);
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: var(--transition);
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: white;
    transform: translateY(-2px);
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
}

/* Dropdown de usuario */
.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-md);
    margin-top: 0.5rem;
}

.dropdown-item {
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: var(--primary-color);
    color: white;
}

.dropdown-item i {
    width: 20px;
    text-align: center;
}

/* Contenido principal */
main {
    flex: 1;
    padding: 2rem 0;
}

.container {
    max-width: 1200px;
}

/* Botones */
.btn {
    padding: 0.5rem 1.25rem;
    font-weight: 500;
    border-radius: 0.375rem;
    transition: var(--transition);
}

.btn-outline-light {
    border: 2px solid;
}

.btn-outline-light:hover {
    color: var(--primary-color);
    background-color: white;
}

/* Efectos hover */
.nav-link, .btn, .dropdown-item {
    transition: var(--transition);
}

/* Responsive */
@media (max-width: 991.98px) {
    .navbar-collapse {
        padding: 1rem 0;
    }
    
    .navbar-nav {
        margin-bottom: 1rem;
    }
    
    .d-flex {
        width: 100%;
        justify-content: flex-end;
    }
}

@media (max-width: 767.98px) {
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .navbar-brand i {
        font-size: 1.5rem;
    }
    
    main {
        padding: 1.5rem 0;
    }
}

/* Animaciones */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.4s ease-out;
}