* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: #f0f2f5;
}

/* Login Page */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-box {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
}

.login-box h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

button {
    background: #1877f2;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
}

button:hover {
    background: #166fe5;
}

.alert {
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 5px;
}

.alert.error {
    background: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
}

/* Header/Navbar */
.navbar {
    background: white;
    padding: 15px 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar h1 {
    font-size: 20px;
    color: #333;
}

.nav-links a {
    color: #1877f2;
    text-decoration: none;
    margin-left: 20px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
}

/* Card */
.card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.card h3 {
    margin-bottom: 15px;
    color: #333;
}

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
}

table th,
table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

table th {
    background: #f5f5f5;
}

/* Grid untuk dashboard */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}