:root {
    --primary: #2c3e50;
    --secondary: #95a5a6;
    --success: #27ae60;
    --danger: #e74c3c;
    --light: #ecf0f1;
    --dark: #2c3e50;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    background-color: #f4f7f6;
    color: var(--dark);
}

.navbar {
    background-color: var(--primary);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}

    .nav-links a {
        color: white;
        text-decoration: none;
        font-weight: 500;
    }

        .nav-links a:hover, .nav-links a.active {
            color: #3498db;
        }

/* Contenedores */
.container {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.header-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

/* Tablas */
.table-container {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

th {
    background-color: #f8f9fa;
    font-weight: 600;
}

/* Botones */
button {
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: opacity 0.2s;
}

    button:hover {
        opacity: 0.8;
    }

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

.btn-success {
    background: var(--success);
    color: white;
}

.btn-secondary {
    background: var(--secondary);
    color: white;
}

.btn-logout {
    background: transparent;
    border: 1px solid white;
    color: white;
}

/* Modales */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(3px);
    z-index: 1000;
    overflow-y: auto;
    padding: 2rem 0; 
}

.modal-content {
    background: white;
    width: 90%;
    max-width: 500px;
    margin: 0 auto; 
    padding: 2rem;
    border-radius: 8px;
    position: relative;
    box-sizing: border-box;
    max-height: 90vh; 
    overflow-y: auto; 
}

.form-group {
    margin-bottom: 1rem;
}

    .form-group label {
        display: block;
        margin-bottom: 0.5rem;
        font-size: 0.9rem;
    }

    .form-group input {
        width: 100%;
        padding: 0.5rem;
        border: 1px solid #ddd;
        border-radius: 4px;
        box-sizing: border-box; 
    }

/* Login Page Espacial */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, #2c3e50, #4ca1af);
}

.login-card {
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 350px;
}