/* Navbar Style */
body {
    font-family: 'Roboto', sans-serif;
    background-color: #f0f2f5;
    margin: 0;
    padding: 0;
}

header {
    background-color: #ffffff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #007bff;
}

.btn-logout {
    color: #dc3545 !important;
    font-weight: bold;
}

/* Dashboard Grid */
.dashboard-container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 40px;
}

.grid-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    justify-items: center;
}

.card-menu {
    background: #ffffff;
    border-radius: 15px;
    width: 100%;
    height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: #333;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    padding: 20px;
    box-sizing: border-box;
}

.card-menu:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    background-color: #e3f2fd;
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
}

/* Alerts */
.alerta {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    text-align: center;
}
.success-message {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Login */
.login-container {
    width: 300px;
    margin: 100px auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.login-container h2 {
    text-align: center;
    color: #333;
}
.login-container input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
}
.login-container button {
    width: 100%;
    padding: 10px;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
.login-container button:hover {
    background: #218838;
}
.error { color: red; text-align: center; }