/* --- [ FONDASI DESAIN BARU ] --- */

/* 1. Import Font Profesional dari Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* 2. Definisi Variabel Desain Global (Warna & Tipografi Baru) */
:root {
    --primary-color: #006ADC;
    --primary-hover: #0056b3;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --purple-dark: #6C63FF;
    --purple-light: #A9A5FF;
    --purple-bg: #f3f2ff;
    
    --background-color: #f8f9fa;
    --surface-color: #ffffff;
    --border-color: #dee2e6;
    
    --text-primary: #212529;
    --text-secondary: #6c757d;

    --font-family: 'Inter', sans-serif;
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

/* 3. Aturan Dasar & Reset */
* { box-sizing: border-box; }
body {
    font-family: var(--font-family);
    margin: 0;
    background-color: var(--background-color);
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.6;
}
.container { padding: 24px; max-width: 1400px; margin: 0 auto; }
@keyframes fadeIn { from {opacity: 0; transform: translateY(-10px);} to {opacity: 1; transform: translateY(0);} }

/* --- [ HALAMAN LOGIN BARU ] --- */
.login-page-container { display: flex; justify-content: center; align-items: center; min-height: 100vh; background-color: var(--purple-bg); padding: 20px; }
.login-card { display: grid; grid-template-columns: 1fr 1fr; width: 100%; max-width: 900px; min-height: 550px; background: var(--surface-color); border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); overflow: hidden; }
.login-image-panel { background-color: var(--purple-dark); color: white; display: flex; justify-content: center; align-items: center; padding: 40px; }
.welcome-text { text-align: center; }
.login-logo { width: 64px; height: 64px; color: white; margin-bottom: 20px; }
.welcome-text h2 { font-size: 1.8em; font-weight: 600; margin-bottom: 15px; }
.welcome-text p { font-size: 1em; opacity: 0.8; line-height: 1.6; }
.login-form-panel { display: flex; justify-content: center; align-items: center; padding: 40px; }
.login-form { width: 100%; max-width: 320px; }
.login-form h3 { font-weight: 500; color: var(--purple-dark); font-size: 0.9em; text-transform: uppercase; letter-spacing: 1px; }
.login-form h1 { font-size: 1.8em; font-weight: 600; color: var(--text-primary); margin-top: 5px; margin-bottom: 30px; }
.login-form .input-group { margin-bottom: 25px; }
.login-form label { display: block; margin-bottom: 8px; font-weight: 500; color: var(--text-secondary); font-size: 0.9em; }
.login-form input { width: 100%; padding: 8px 0; border: none; border-bottom: 2px solid var(--border-color); background-color: transparent; font-size: 1em; transition: border-color 0.3s; }
.login-form input:focus { outline: none; border-color: var(--purple-dark); }
.login-form button { width: 100%; padding: 14px; border: none; border-radius: 8px; background-image: linear-gradient(to right, var(--purple-light), var(--purple-dark)); color: white; font-size: 16px; font-weight: 600; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s; margin-top: 10px; }
.login-form button:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(108, 99, 255, 0.4); }
.login-form .error-message { background-color: #f8d7da; color: #721c24; padding: 12px; border-radius: var(--border-radius-sm); margin-bottom: 16px; text-align: center; }

/* --- [ LAYOUT UTAMA ] --- */
.main-header { display: flex; justify-content: space-between; align-items: center; background-color: var(--surface-color); color: var(--text-primary); padding: 12px 30px; border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 1020; }
.main-header .logo { font-size: 1.4em; font-weight: 700; }
.main-header .logo strong { font-weight: 500; color: var(--text-secondary); }
.main-nav a { color: var(--text-secondary); font-weight: 500; text-decoration: none; margin-left: 16px; padding: 8px 16px; border-radius: var(--border-radius-md); transition: background-color 0.3s, color 0.3s; }
.main-nav a:hover { background-color: #e9ecef; color: var(--text-primary); }
.main-nav a.active { background-color: var(--primary-color); color: white; }
.main-nav span { margin-left: 24px; color: var(--text-secondary); }
.logout-btn { background-color: var(--danger-color) !important; color: white !important; }
.main-content { padding: 24px; }
.main-footer { text-align: center; padding: 24px; background-color: var(--surface-color); border-top: 1px solid var(--border-color); font-size: 0.9em; color: var(--text-secondary); margin-top: 40px; }

/* --- [ PANEL & CARD ] --- */
.filter-panel, .card { background: var(--surface-color); padding: 24px; border-radius: var(--border-radius-md); margin-bottom: 24px; box-shadow: var(--box-shadow); border: 1px solid var(--border-color); }
.filter-panel { display: flex; gap: 24px; align-items: center; }
.filter-panel .form-group, .form-group { display: flex; flex-direction: column; margin-bottom: 16px; }
.filter-panel label, .form-group label { font-weight: 500; margin-bottom: 8px; font-size: 0.9em; }
.filter-panel select, .form-group select, .form-group input { padding: 10px 12px; border-radius: var(--border-radius-sm); border: 1px solid var(--border-color); min-width: 200px; background-color: #fff; transition: border-color 0.3s, box-shadow 0.3s; }
.filter-panel select:focus, .form-group select:focus, .form-group input:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(0, 106, 220, 0.2); }

/* --- [ TABEL JADWAL & KELOLA ] --- */
.jadwal-container, .table-container { overflow: auto; max-height: 70vh; }
.jadwal-table, .data-table { width: 100%; border-collapse: collapse; margin-top: 16px; }
.jadwal-table th, .jadwal-table td, .data-table th, .data-table td { border: none; border-bottom: 1px solid var(--border-color); padding: 16px; text-align: center; vertical-align: middle; }
.data-table td { text-align: left; }
.data-table th { background-color: #f8f9fa; font-weight: 600; font-size: 0.9em; text-transform: uppercase; letter-spacing: 0.5px; }
.data-table tbody tr:nth-child(odd) { background-color: #f8f9fa; }
.slot { padding: 8px !important; vertical-align: top !important; min-width: 120px; }
.slot-terisi { padding: 8px; border-radius: var(--border-radius-sm); margin-bottom: 6px; text-align: left; color: white; font-weight: 500; cursor: pointer; transition: transform 0.2s; }
.slot-terisi:hover { transform: scale(1.05); box-shadow: 0 2px 8px rgba(0,0,0,0.2); }
.slot-terisi strong { font-size: 1em; }
.slot-terisi small { opacity: 0.9; font-size: 0.8em; display: block; margin-top: 2px; }
.slot-kosong { padding: 8px; border-radius: var(--border-radius-sm); background-color: #e9f5ff; color: var(--primary-color); cursor: pointer; text-align: center; transition: background-color 0.3s; margin-top: 6px; }
.slot-kosong:hover { background-color: #cfe7ff; }
.slot-kosong small { display: block; font-weight: 400; font-size: 0.8em; margin-top: 4px; opacity: 0.9; }
.slot.non-aktif { background-color: #e9ecef; }
.jadwal-table th { position: sticky; top: 0; background-color: #f8f9fa; z-index: 10; font-weight: 600; font-size: 0.9em; text-transform: uppercase; letter-spacing: 0.5px; }
.jadwal-table tbody td:first-child { position: sticky; left: 0; background-color: var(--surface-color); border-right: 1px solid var(--border-color); z-index: 5; font-weight: 600; text-align: left; }
.jadwal-table thead th:first-child { left: 0; z-index: 11; }

/* --- [ MODAL ] --- */
.modal { position: fixed !important; display: none; z-index: 1050; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgba(0,0,0,0.6); }
.modal-content { background-color: var(--surface-color); margin: 5% auto; padding: 0; border: none; width: 90%; max-width: 550px; border-radius: var(--border-radius-md); box-shadow: var(--box-shadow); position: relative; animation: fadeIn 0.3s; }
.modal-header { padding: 16px 24px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.modal-header h3 { margin: 0; font-weight: 600; }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border-color); display: flex; justify-content: flex-end; gap: 12px; }
.close-button { color: var(--text-secondary); font-size: 28px; font-weight: bold; cursor: pointer; background: none; border: none; }
.close-button:hover { color: var(--text-primary); }
.info-text { background-color: var(--background-color); padding: 12px; border-radius: var(--border-radius-sm); margin: 0; border: 1px solid var(--border-color); }
.form-buttons button, .modal-footer button { padding: 10px 20px; border: none; border-radius: var(--border-radius-sm); cursor: pointer; font-size: 16px; font-weight: 500; transition: opacity 0.3s; }
.form-buttons button:hover, .modal-footer button:hover { opacity: 0.85; }
.btn-primary { background-color: var(--primary-color); color: white; }
.btn-danger { background-color: var(--danger-color); color: white; }
.btn-secondary { background-color: var(--secondary-color); color: white; }
.btn-warning { background-color: var(--warning-color); color: var(--text-primary); }

/* --- [ KELOLA PAGE ] --- */
.tab-nav { border-bottom: 1px solid var(--border-color); margin-bottom: 24px; }
.tab-link { background-color: transparent; border: none; padding: 12px 18px; cursor: pointer; font-size: 16px; font-weight: 500; margin-bottom: -1px; border-bottom: 2px solid transparent; color: var(--text-secondary); transition: all 0.3s ease; }
.tab-link:hover { color: var(--text-primary); }
.tab-link.active { border-color: var(--primary-color); color: var(--primary-color); }
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.5s; }
.btn-add { padding: 10px 18px; border: none; color: white; border-radius: var(--border-radius-sm); cursor: pointer; margin-bottom: 20px; font-size: 1em; font-weight: 500; }
.data-table td .btn-edit, .data-table td .btn-delete { padding: 6px 12px; border-radius: var(--border-radius-sm); cursor: pointer; margin-right: 8px; border: none; }
.tab-content-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.tab-content-header h3 { margin: 0; }

/* --- [ NOTIFIKASI & MODAL KONFIRMASI ] --- */
#toast-container { position: fixed; top: 20px; right: 20px; z-index: 2000; display: flex; flex-direction: column; gap: 10px; }
.toast { background-color: var(--surface-color); padding: 15px 20px; border-radius: var(--border-radius-md); box-shadow: var(--box-shadow); border-left: 5px solid; display: flex; align-items: center; gap: 10px; transform: translateX(120%); transition: transform 0.5s ease-in-out; }
.toast.show { transform: translateX(0); }
.toast.success { border-color: var(--success-color); color: var(--success-color); }
.toast.error { border-color: var(--danger-color); color: var(--danger-color); }
.confirm-modal-buttons { display: flex; justify-content: flex-end; gap: 12px; margin-top: 24px; }

/* --- [ HEADER RESPONSIVE ] --- */
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 10px; z-index: 1100; }
.hamburger-icon, .hamburger-icon::before, .hamburger-icon::after { content: ''; display: block; background-color: var(--text-primary); height: 3px; width: 25px; border-radius: 3px; transition: all 0.3s ease-in-out; }
.hamburger-icon::before { transform: translateY(-8px); }
.hamburger-icon::after { transform: translateY(8px); }
.nav-separator { display: none; }

/* --- [ RESPONSIVE MEDIA QUERIES ] --- */
@media (max-width: 992px) {
    .menu-toggle { display: block; }
    .main-nav { position: fixed; top: 0; right: 0; width: 280px; height: 100%; background-color: var(--surface-color); box-shadow: -5px 0 15px rgba(0,0,0,0.1); flex-direction: column; justify-content: flex-start; align-items: flex-start; padding: 80px 20px 20px 20px; transform: translateX(100%); transition: transform 0.3s ease-in-out; }
    .main-nav.is-open { transform: translateX(0); }
    .main-nav a, .main-nav span { width: 100%; margin: 10px 0; padding: 12px 15px; color: var(--text-primary); }
    .main-nav a:hover, .main-nav a.active { background-color: #e9ecef; color: var(--primary-color); }
    .nav-separator { display: block; width: 100%; height: 1px; background-color: var(--border-color); margin: 15px 0; }
    .user-info { font-weight: bold; }
    .menu-toggle.is-active .hamburger-icon { background-color: transparent; }
    .menu-toggle.is-active .hamburger-icon::before { transform: rotate(45deg); }
    .menu-toggle.is-active .hamburger-icon::after { transform: rotate(-45deg); margin-top: -3px; }
    .login-card { grid-template-columns: 1fr; max-width: 450px; min-height: auto; }
    .login-image-panel { display: none; }
}
@media (max-width: 768px) {
    .filter-panel { flex-direction: column; align-items: stretch; gap: 16px; }
    .filter-panel .form-group { margin-bottom: 0; }
    .jadwal-table th, .jadwal-table td, .data-table th, .data-table td { padding: 8px; font-size: 0.9em; min-width: 90px; }
    .slot { height: auto; min-height: 80px; }
    .main-content { padding: 16px; }
    .container { padding: 0; }
    .card { border-radius: 0; box-shadow: none; border-left: none; border-right: none; }
    .tab-nav { overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
    .tab-link { flex-shrink: 0; }
    .tab-content-header { flex-direction: column; align-items: flex-start; gap: 16px; }
    .login-form-panel { height: 100vh; }
}