:root {
    /* Warna berdasarkan logo SMA PLUS PGRI CIBINONG */
    --primary-color: #1a4b84; /* Biru tua dari logo */
    --primary-light: #2a6cb4; /* Biru tua lebih terang */
    --primary-dark: #0f3b74; /* Biru tua lebih gelap */
    --secondary-color: #e63946; /* Merah dari logo */
    --secondary-light: #f65a67; /* Merah lebih terang */
    --secondary-dark: #d62836; /* Merah lebih gelap */
    --accent-color: #f6f7f9; /* Putih dari logo */
    --accent-color-icon: #cfb10a; /* Kuning dari logo */
    --accent-color-icon-light: #e0c52b; /* Kuning lebih terang */
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
    background-attachment: fixed;
    color: var(--gray-800);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1rem;
}

.admin-container {
    background-color: var(--light-color);
    border-radius: 1rem;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 900px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    animation: fadeIn 0.5s ease-out;
}

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

.admin-header {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--gray-200);
    gap: 1.5rem;
}

.admin-header img {
    width: 60px;
    height: auto;
    border-radius: 50%;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 0.25rem;
    background-color: white;
    border: 2px solid var(--primary-color);
}

.admin-header h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 0;
    font-weight: 600;
    flex-grow: 1;
}

/* Tab Navigation */
.admin-nav {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--gray-300);
    padding-bottom: 0.5rem;
}

.nav-tab {
    padding: 0.75rem 1.25rem;
    background-color: var(--gray-200);
    color: var(--gray-700);
    border-radius: 0.5rem 0.5rem 0 0;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.nav-tab::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
}

.nav-tab:hover {
    background-color: var(--gray-300);
}

.nav-tab.active {
    background-color: var(--primary-color);
    color: var(--light-color);
}

.nav-tab.active::before {
    transform: scaleX(1);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.tab-content.active {
    display: block;
}

/* Form Styling */
.admin-form {
    margin-bottom: 2rem;
}

.menu-item-admin {
    background-color: var(--gray-100);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.menu-item-admin:hover {
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.menu-header h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 600;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 75, 132, 0.2);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--gray-400);
    transition: .4s;
    border-radius: 30px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background-color: var(--accent-color-icon);
}

input:focus + .toggle-slider {
    box-shadow: 0 0 1px var(--accent-color-icon);
}

input:checked + .toggle-slider:before {
    transform: translateX(30px);
}

/* Button Styling */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(0);
}

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

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

.btn-danger {
    background-color: var(--danger-color);
    color: var(--light-color);
}

.btn-danger:hover {
    background-color: #e04555;
}

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

.btn-success:hover {
    background-color: #2dbc4e;
}

.actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Alert Styling */
.alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease-out;
    position: relative;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.15);
    border-left: 4px solid var(--success-color);
    color: #155724;
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.15);
    border-left: 4px solid var(--danger-color);
    color: #721c24;
}

.alert-close {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    font-size: 1.2rem;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.alert-close:hover {
    opacity: 1;
}

/* Login Form */
.login-form {
    max-width: 500px;
    margin: 0 auto;
    padding: 2rem;
    background-color: var(--gray-100);
    border-radius: 1rem;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.5s ease-out;
}

.login-form h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.password-field {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--gray-600);
    transition: color 0.3s ease;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.password-toggle:hover {
    color: var(--primary-color);
}

/* Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--light-color);
    border-radius: 1rem;
    padding: 2rem;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--gray-300);
}

.modal-title {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-600);
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--danger-color);
}

.modal-footer {
    margin-top: 1.5rem;
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .admin-container {
        padding: 1.5rem;
        margin: 1rem;
    }
    
    .admin-nav {
        flex-wrap: wrap;
    }
    
    .nav-tab {
        flex: 1 0 40%;
        text-align: center;
        justify-content: center;
    }
    
    .menu-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .menu-header .toggle-switch {
        margin-top: 1rem;
    }
    
    .actions {
        flex-direction: column;
    }
    
    .actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .admin-header {
        flex-direction: column;
        text-align: center;
    }
    
    .admin-header h1 {
        font-size: 1.5rem;
    }
    
    .nav-tab {
        flex: 1 0 100%;
        margin-bottom: 0.5rem;
        border-radius: 0.5rem;
    }
    
    .login-form {
        padding: 1.5rem;
    }
}