/* ==========================================
   RESET & BASE STYLES
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f3f4f6;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 12px;
    --transition: all 0.3s ease;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
}
/* ==========================================
   LOADER
   ========================================== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
.loader.hidden {
    opacity: 0;
    visibility: hidden;
}
.loader-content {
    text-align: center;
}
.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--bg-light);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
/* ==========================================
   HEADER
   ========================================== */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 30px 20px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: headerPulse 4s ease-in-out infinite;
}
@keyframes headerPulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}
.header-content {
    position: relative;
    z-index: 1;
}
.logo-container {
    margin-bottom: 15px;
    animation: fadeInDown 0.8s ease;
}
.logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    background: var(--white);
    border-radius: 50%;
    padding: 8px;
    box-shadow: var(--shadow-lg);
}
.app-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    animation: fadeInUp 0.8s ease 0.2s both;
}
.app-subtitle {
    font-size: 0.9rem;
    font-weight: 300;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.4s both;
}
.header-decoration {
    position: absolute;
    bottom: -20px;
    left: 0;
    width: 100%;
    height: 40px;
    background: var(--bg-light);
    border-radius: 50% 50% 0 0;
}
/* ==========================================
   MAIN CONTENT
   ========================================== */
.main-content {
    padding: 30px 20px;
    max-width: 480px;
    margin: 0 auto;
}
/* ==========================================
   SECTIONS
   ========================================== */
.section-info {
    margin-bottom: 25px;
    animation: fadeInUp 0.8s ease 0.6s both;
}
.info-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    text-align: center;
    position: relative;
    overflow: hidden;
}
.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}
.info-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.5rem;
    color: var(--white);
    animation: iconBounce 2s ease-in-out infinite;
}
@keyframes iconBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}
.section-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}
.section-text {
    font-size: 0.9rem;
    color: var(--text-light);
    text-align: center; /* Dari revisi sebelumnya */
    word-break: break-word; /* Untuk edge cases teks panjang */
    animation: textFadeIn 1s ease 0.8s both; /* Tambah animasi: fade-in dengan scale subtle, delay setelah title */
}
.section-title-center {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}
.section-title-center::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}
/* ==========================================
   DOKUMEN SECTION
   ========================================== */
.section-dokumen {
    margin-bottom: 25px;
    animation: fadeInUp 0.8s ease 0.8s both;
}
.dokumen-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}
.dokumen-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px 15px;
    text-align: center;
    text-decoration: none;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.dokumen-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.dokumen-card:active {
    transform: scale(0.98);
}
.dokumen-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--warning-color);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}
.dokumen-card:hover::before {
    transform: scaleX(1);
}
.dokumen-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--warning-color), #d97706);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 1.3rem;
    color: var(--white);
}
.dokumen-card h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 5px;
}
.dokumen-card p {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-bottom: 10px;
}
.btn-pdf {
    display: inline-block;
    padding: 5px 12px;
    background: var(--bg-light);
    color: var(--text-dark);
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 500;
    transition: var(--transition);
}
.dokumen-card:hover .btn-pdf {
    background: var(--warning-color);
    color: var(--white);
}
/* ==========================================
   MENU SECTION
   ========================================== */
.section-menu {
    margin-bottom: 25px;
    animation: fadeInUp 0.8s ease 1s both;
}
.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); /* Diubah untuk handle lebih banyak item, responsive */
    gap: 15px;
}
.menu-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 25px 20px;
    text-align: center;
    text-decoration: none;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.menu-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.menu-card:active {
    transform: scale(0.98);
}
.menu-card:focus {
    outline: 2px solid var(--primary-color); /* Tambah untuk aksesibilitas keyboard */
}
.menu-icon {
    width: 65px;
    height: 65px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.8rem;
    color: var(--white);
    transition: var(--transition);
}
.menu-card:nth-child(1) .menu-icon {
    background: linear-gradient(135deg, var(--secondary-color), #059669);
}
.menu-card:nth-child(2) .menu-icon {
    background: linear-gradient(135deg, var(--danger-color), #dc2626);
}
.menu-card:nth-child(3) .menu-icon {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}
/* Style untuk card Foto Dokumentasi (adaptasi dari .btn-dokumentasi) */
.menu-card.btn-dokumentasi-card .menu-icon {
    background: linear-gradient(135deg, #4CAF50, #45a049); /* Hijau dari .btn-dokumentasi */
}
.menu-card.btn-dokumentasi-card:hover .menu-icon {
    background: #45a049; /* Hover lebih gelap */
}
.menu-card:hover .menu-icon {
    transform: scale(1.1) rotate(5deg);
}
.menu-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 5px;
}
.menu-card p {
    font-size: 0.75rem;
    color: var(--text-light);
}
/* ==========================================
   LOGIN ADMIN SECTION
   ========================================== */
.section-login {
    margin-bottom: 25px;
    animation: fadeInUp 0.8s ease 1.2s both;
}
.login-admin-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: linear-gradient(135deg, #6b7280, #4b5563);
    color: var(--white);
    padding: 14px 20px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.login-admin-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #4b5563, #374151);
}
.login-admin-btn:active {
    transform: scale(0.98);
}
.login-admin-btn:focus {
    outline: 2px solid var(--primary-color); /* Tambah aksesibilitas */
}
/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 30px 20px;
    text-align: center;
}
.footer-content {
    max-width: 480px;
    margin: 0 auto;
}
.footer-logo {
    margin-bottom: 15px;
}
.footer-logo-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    background: var(--white);
    border-radius: 50%;
    padding: 5px;
    margin-bottom: 8px;
}
.footer-logo p {
    font-size: 0.9rem;
    font-weight: 600;
}
.footer-text p {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 5px;
}
.footer-tagline {
    font-style: italic;
    opacity: 0.8;
}
/* ==========================================
   ANIMATIONS
   ========================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes textFadeIn { /* Keyframes baru untuk animasi teks STP2K: fade + slight scale */
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}
/* Tambah untuk aksesibilitas: Reduce motion jika user prefer */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}
/* ==========================================
   RESPONSIVE - Tablet & Desktop
   ========================================== */
@media (min-width: 768px) {
    .main-content {
        max-width: 600px;
    }
   
    .app-title {
        font-size: 2.2rem;
    }
   
    .app-subtitle {
        font-size: 1.1rem;
    }
   
    .logo {
        width: 100px;
        height: 100px;
    }
   
    .dokumen-grid,
    .menu-grid {
        gap: 20px;
    }
   
    .section-text {
        font-size: 1rem;
    }
}
@media (min-width: 1024px) {
    .main-content {
        max-width: 700px;
    }
   
    .dokumen-card,
    .menu-card {
        padding: 30px 25px;
    }
}
/* Gaya untuk tombol Dokumentasi Foto (sudah ada, tapi integrasikan ke card) */
.btn-dokumentasi {
    background-color: #4CAF50; /* Warna hijau */
    color: white;
    font-size: 16px;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}
.btn-dokumentasi:hover {
    background-color: #45a049; /* Warna hijau lebih gelap saat hover */
}
.btn-dokumentasi:focus {
    outline: 2px solid #4CAF50; /* Aksesibilitas */
}
/* Tambah keyframes ripple dari saran main.js */
@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}
/* Admin Specific Styles */
.admin-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}
.tab-btn {
    padding: 10px 20px;
    background: var(--bg-light);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}
.tab-btn.active {
    background: var(--primary-color);
    color: var(--white);
}
.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 5px;
}
.form-group input, select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--text-light);
    border-radius: var(--radius);
}
.form-group button {
    margin-top: 10px;
    padding: 10px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
}
.video {
    border: 1px solid var(--text-light);
    margin-bottom: 10px;
}
.siswa-list table {
    width: 100%;
    border-collapse: collapse;
}
.siswa-list th, td {
    border: 1px solid var(--bg-light);
    padding: 8px;
    text-align: left;
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 10px;
}
.gallery-grid img {
    width: 100%;
    border-radius: var(--radius);
    cursor: pointer;
}
/* Modern UI Additions */
.modern-card {
    background: linear-gradient(135deg, var(--white), var(--bg-light));
    box-shadow: var(--shadow-lg);
    transition: transform 0.2s, box-shadow 0.2s;
}
.modern-card:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 25px rgba(0,0,0,0.15);
}
.grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}
.siswa-foto {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}
.siswa-foto-large {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: block;
    margin: 0 auto 15px;
}
.btn-modern {
    background: var(--primary-color);
    color: var(--white);
    padding: 10px 15px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: background 0.3s;
}
.btn-modern:hover {
    background: var(--primary-dark);
}
.btn-danger {
    background: var(--danger-color);
}
.form-group-modern {
    background: var(--white);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}
.modal-content {
    background: var(--white);
    margin: 15% auto;
    padding: 20px;
    border-radius: var(--radius);
    width: 80%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
}
.close {
    color: var(--text-light);
    float: right;
    font-size: 28px;
    cursor: pointer;
}
.close:hover {
    color: var(--text-dark);
}
#modal-form label {
    display: block;
    margin: 10px 0 5px;
}
#modal-form input, select {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid var(--bg-light);
    border-radius: var(--radius);
}
/* Modern Login UI */
.login-modern {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), var(--bg-light));
}
.login-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}
.input-group {
    position: relative;
}
.input-group input {
    padding-right: 40px; /* Space for icon */
}
.toggle-password {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--text-light);
}
.toggle-password:hover {
    color: var(--text-dark);
}
.btn-modern[disabled] {
    background: var(--text-light);
    cursor: not-allowed;
    opacity: 0.6;
}
.btn-modern[disabled]:hover {
    background: var(--text-light); /* No hover effect */
}
/* Modern Login UI - Revised Estetis */
.login-body {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 50%, var(--bg-light) 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: bgGradient 10s ease infinite; /* Subtle animasi bg untuk dinamika */
}
@keyframes bgGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.login-main {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}
.login-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 30px;
    text-align: center;
    animation: fadeInUp 0.8s ease;
    overflow: hidden;
    position: relative;
}
.login-header {
    margin-bottom: 20px;
}
.login-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    animation: iconPulse 1.5s ease-in-out infinite;
}
@keyframes iconPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}
.input-wrapper {
    position: relative;
    margin-bottom: 20px;
}
.input-wrapper input {
    width: 100%;
    padding: 12px 40px 12px 12px;
    border: 1px solid var(--bg-light);
    border-radius: var(--radius);
    transition: border-color 0.3s;
}
.input-wrapper input:focus {
    border-color: var(--primary-color);
    outline: none;
}
.input-wrapper label {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    transition: all 0.3s;
    pointer-events: none;
}
.input-wrapper input:not(:placeholder-shown) + label,
.input-wrapper input:focus + label {
    top: -10px;
    font-size: 0.8rem;
    background: var(--white);
    padding: 0 5px;
    color: var(--primary-color);
}
.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    cursor: pointer;
    transition: color 0.3s;
}
.toggle-password:hover {
    color: var(--primary-color);
}
.login-btn {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.3s, transform 0.3s;
}
.login-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}
.login-btn[disabled] {
    background: var(--text-light);
    cursor: not-allowed;
}
.input-error {
    animation: shake 0.3s;
    border-color: var(--danger-color) !important;
}
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}
.error-hidden {
    display: none;
}
#error-message {
    color: var(--danger-color);
    margin-top: 10px;
    font-size: 0.8rem;
    animation: fadeIn 0.5s;
}
/* Modern Admin UI with Sidebar */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}
.sidebar {
    width: 250px;
    background: linear-gradient(to bottom, var(--primary-dark), var(--primary-color));
    color: var(--white);
    padding: 20px;
    transition: width 0.3s;
}
.sidebar-header {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}
.sidebar-logo {
    font-size: 2rem;
    margin-right: 10px;
}
.sidebar-menu {
    list-style: none;
}
.menu-item {
    padding: 15px;
    cursor: pointer;
    transition: background 0.3s;
    border-radius: var(--radius);
}
.menu-item:hover {
    background: rgba(255,255,255,0.2);
}
.menu-item.active {
    background: var(--white);
    color: var(--primary-color);
}
.sidebar-toggle {
    display: none;
}
.admin-content {
    flex: 1;
    padding: 30px;
    background: var(--bg-light);
}
.admin-section {
    display: none;
}
.admin-section.active {
    display: block;
    animation: fadeIn 0.5s;
}
.select-modern {
    padding: 10px;
    border-radius: var(--radius);
    border: 1px solid var(--text-light);
    margin-bottom: 20px;
}
/* Mobile Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 0;
        overflow: hidden;
    }
    .sidebar.open {
        width: 250px;
    }
    .sidebar-toggle {
        display: block;
        position: absolute;
        top: 20px;
        left: 20px;
        background: none;
        border: none;
        color: var(--text-dark);
        font-size: 1.5rem;
        cursor: pointer;
    }
}
/* Mobile Fix: No Potong Elemen */
@media (max-width: 768px) {
    .main-content {
        padding: 10px;
    }
    .menu-grid, .dokumen-grid {
        grid-template-columns: 1fr; /* Stack vertical untuk no potong */
    }
    .menu-card {
        width: 100%;
        margin-bottom: 10px;
    }
    .header {
        padding: 20px 10px;
    }
    .logo {
        width: 60px;
        height: 60px;
    }
    .app-title {
        font-size: 1.5rem;
    }
    .section-text {
        font-size: 0.8rem;
    }
    /* Sidebar collapse if any */
    .sidebar {
        width: 100%;
        position: fixed;
        top: 0;
        left: -100%;
        transition: left 0.3s;
    }
    .sidebar.open {
        left: 0;
    }
    .sidebar-toggle {
        display: block;
    }
}
@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}
/* Layout Dasar Admin */
.admin-container {
    display: flex;
    min-height: 100vh;
    background-color: #f4f7f6;
}

/* Sidebar Biru sesuai Foto */
.admin-sidebar {
    width: 260px;
    background-color: #2563eb; /* Biru Primer */
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100%;
}

.sidebar-brand {
    padding: 30px 20px;
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 0 10px;
}

.nav-item {
    padding: 15px 20px;
    cursor: pointer;
    border-radius: 10px;
    transition: 0.3s;
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-item:hover, .nav-item.active {
    background-color: rgba(255, 255, 255, 0.15);
}

/* Konten Utama */
.admin-main {
    flex: 1;
    margin-left: 260px; /* Jarak agar tidak tertutup sidebar */
    padding: 40px;
}

.admin-section {
    display: none; /* Sembunyikan semua section */
}

.admin-section.active {
    display: block; /* Tampilkan hanya yang aktif */
}

/* Card Styling */
.card-kelas, .card-siswa {
    background: white;
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: 0.3s;
    cursor: pointer;
}

.card-kelas:hover { transform: translateY(-5px); }