:root {
    --color-azul: #0b4582;
    --color-azul-claro: #0e5aa6;
    --color-verde: #4CAF50;
    --color-rojo: #e53935;
    --color-gris-claro: #f2f2f2;
    --color-oscuro: #333;
    --color-texto: #212529;
}

body {
    font-family: 'Segoe UI', sans-serif;
    background-color: var(--color-gris-claro);
    color: var(--color-texto);
}

h1, h2, h3 {
    color: var(--color-azul);
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-brand img {
    height: 42px;
    margin-right: 12px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    font-weight: bold;
    color: white !important;
}

.nav-link {
    color: white !important;
    font-weight: 500;
    transition: 0.2s;
}

.nav-link:hover {
    color: #e2e2e2 !important;
}

.btn {
    background-color: var(--color-azul);
    color: white;
    border: none;
    font-weight: 500;
    transition: 0.3s ease;
    border-radius: 8px;
}

.btn:hover {
    background-color: var(--color-azul-claro);
}

.alert-info {
    background-color: #e3f2fd;
    border-color: #90caf9;
    color: #0d47a1;
    font-weight: 500;
}

.table thead {
    background-color: var(--color-azul);
    color: white;
}

.table tbody tr:hover {
    background-color: #e8f0fe;
}

input, select, textarea {
    border-radius: 6px !important;
    border: 1px solid #ccc !important;
    padding: 10px;
}

.btn-check:checked+.btn, .btn.active, .btn.show, .btn:first-child:active, :not(.btn-check)+.btn:active {
    color: #fff;
    background-color: #1ab1a3;
    border-color: #1ab1a3;
}
.btn.w-100 {
    width: 100% !important;
    color: #fff;
    background-color: #1ab1a3;
    border-color: #1ab1a3;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}