/* CSS SEDERHANA PERPUSTAKAAN SEKOLAH */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f0f2f5;
    padding: 20px;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h1 {
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
    font-size: 2em;
    border-bottom: 3px solid #3498db;
    padding-bottom: 15px;
}

h2 {
    color: #34495e;
    margin-bottom: 15px;
}

h3 {
    color: #34495e;
    margin-top: 25px;
    margin-bottom: 15px;
}

/* Welcome Box */
.welcome-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 25px;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.welcome-box h2 {
    color: white;
    margin-bottom: 10px;
}

.welcome-box p {
    margin: 0;
    font-size: 1.05em;
}

/* Navigasi */
.nav {
    background-color: #3498db;
    padding: 0;
    margin-bottom: 25px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.nav a {
    color: white;
    text-decoration: none;
    padding: 15px 20px;
    display: inline-block;
    transition: background-color 0.3s;
}

.nav a:hover {
    background-color: #2980b9;
}

/* Form */
form {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

input[type="text"],
input[type="date"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

input[type="text"]:focus,
input[type="date"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.3);
}

textarea {
    resize: vertical;
    min-height: 80px;
}

button,
input[type="submit"] {
    background-color: #3498db;
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}

button:hover,
input[type="submit"]:hover {
    background-color: #2980b9;
}

.btn-danger {
    background-color: #e74c3c;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-warning {
    background-color: #f39c12;
}

.btn-warning:hover {
    background-color: #d68910;
}

/* Tabel */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    background-color: white;
}

table th,
table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ecf0f1;
}

table th {
    background-color: #3498db;
    color: white;
    font-weight: 600;
}

table tr:hover {
    background-color: #f8f9fa;
}

table tr:last-child td {
    border-bottom: none;
}

/* Alert */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Link */
a {
    color: #3498db;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Spacing */
p {
    line-height: 1.6;
    color: #555;
}