/* Modern CSS for Sistem Pembayaran LKS */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

/* Login Page Styles */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-header h1 {
    color: #667eea;
    margin-bottom: 10px;
    font-size: 2.2em;
    font-weight: 300;
}

.login-header p {
    color: #666;
    margin-bottom: 30px;
}

.login-form {
    text-align: left;
}

.btn-login {
    width: 100%;
    padding: 15px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease;
    margin-top: 20px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.login-info {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    text-align: left;
}

.login-info p {
    margin: 5px 0;
    font-size: 14px;
    color: #666;
}

.login-info strong {
    color: #667eea;
}

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

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.header h1 {
    color: #fff;
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    font-weight: 300;
    margin: 0;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
    color: #fff;
}

.user-info span {
    font-weight: 500;
}

.btn-logout {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.message {
    background: #fff;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.actions {
    margin-bottom: 30px;
    text-align: center;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.dashboard-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.dashboard-card h2 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.5em;
    font-weight: 600;
}

.dashboard-card p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 14px;
    margin: 0 5px;
}

.btn-primary {
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-1px);
}

.btn-edit {
    background: #ffc107;
    color: #212529;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    margin-right: 5px;
}

.btn-edit:hover {
    background: #e0a800;
    color: #212529;
}

.btn-delete {
    background: #dc3545;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
}

.btn-delete:hover {
    background: #c82333;
}

.table-container {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    margin-top: 20px;
}

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

thead {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 1px;
}

tbody tr:hover {
    background-color: #f8f9fa;
    transition: background-color 0.3s ease;
}

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

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #555;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    background: #f8f9fa;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    background: #f8f9fa;
}

.form-actions {
    text-align: center;
    margin-top: 30px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    h1 {
        font-size: 2em;
    }

    .table-container {
        overflow-x: auto;
    }

    table {
        min-width: 600px;
    }

    th, td {
        padding: 10px;
        font-size: 14px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 12px;
    }
}

/* Animation for alerts */
.alert-success, .alert-error {
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #5a67d8;
}