/* =====================================================================
   LMS STYLE — v2.0 (Clean)
   ===================================================================== */

/* ============ CSS VARIABLES ============ */
:root {
    --primary: #1e40af;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --primary-soft: #dbeafe;
    --success: #16a34a;
    --success-soft: #dcfce7;
    --warning: #f59e0b;
    --warning-soft: #fef3c7;
    --danger: #dc2626;
    --danger-soft: #fee2e2;
    --info: #3b82f6;
    --info-soft: #dbeafe;
    --purple: #7c3aed;
    --purple-soft: #f3e8ff;
    --text: #0f172a;
    --text-body: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --border-dark: #cbd5e1;
    --bg: #f8fafc;
    --bg-soft: #fafbfc;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.04);
    --shadow: 0 4px 20px rgba(0,0,0,.05);
    --shadow-lg: 0 8px 30px rgba(0,0,0,.1);
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --mono: 'Consolas', 'Monaco', 'Courier New', monospace;
}

/* ============ RESET & BASE ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 15px;
}

a { color: var(--primary); }
a:hover { text-decoration: underline; }

code, pre, kbd {
    font-family: var(--mono);
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
    color: var(--primary);
}

/* ============ LOGIN PAGE ============ */
.login-page {
    background: linear-gradient(135deg, var(--primary) 0%, var(--info) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.login-card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0,0,0,.25);
    width: 100%;
    max-width: 400px;
    padding: 40px;
}
.login-card h1 {
    color: var(--primary);
    font-size: 22px;
    margin-bottom: 6px;
    text-align: center;
}
.login-card .subtitle {
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 28px;
    font-size: 13px;
}
.login-card button {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 6px;
}
.login-card button:hover { background: var(--primary-hover); }

.hint {
    text-align: center;
    color: var(--text-light);
    font-size: 12px;
    margin-top: 20px;
}

/* ============ SITE HEADER ============ */
.site-header {
    padding: 16px 32px;
    box-shadow: var(--shadow-sm);
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}
.header-brand { display: flex; align-items: center; gap: 14px; }
.site-logo {
    height: 48px; width: auto;
    border-radius: 8px; background: #fff;
    padding: 4px; object-fit: contain;
}
.header-titles h1 { font-size: 20px; font-weight: 700; line-height: 1.2; }
.header-subtitle { font-size: 12px; opacity: .85; margin-top: 2px; }
.header-user { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.header-user .user-name { font-weight: 600; }

.header-notif {
    position: relative;
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px;
    background: rgba(255,255,255,.15);
    border-radius: 50%; text-decoration: none;
    font-size: 16px;
    transition: background .15s;
}
.header-notif:hover { background: rgba(255,255,255,.25); }
.header-notif .notif-badge {
    position: absolute; top: -4px; right: -4px;
    background: var(--danger); color: #fff;
    font-size: 10px; font-weight: 800;
    padding: 2px 5px; border-radius: 10px;
    min-width: 16px; text-align: center; line-height: 1.3;
}
.header-btn-profil {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(255,255,255,.15);
    color: #fff !important;
    padding: 7px 14px; border-radius: 8px;
    text-decoration: none; font-size: 13px; font-weight: 600;
    transition: background .15s;
}
.header-btn-profil:hover { background: rgba(255,255,255,.25); text-decoration: none; }
.header-btn-panduan { background: rgba(255,255,255,.2); border: 1px solid rgba(255,255,255,.3); }

/* ============ BADGE ROLE ============ */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.badge-admin { background: #fbbf24; color: #78350f; }
.badge-guru  { background: #34d399; color: #064e3b; }
.badge-siswa { background: #60a5fa; color: #1e3a8a; }

.btn-logout {
    background: var(--danger); color: #fff;
    padding: 7px 16px; text-decoration: none;
    border-radius: 6px; font-size: 13px; font-weight: 600;
}
.btn-logout:hover { background: #b91c1c; text-decoration: none; }

/* ============ HORIZONTAL MENU ============ */
.horizontal-menu {
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.horizontal-menu > ul {
    display: flex; flex-wrap: wrap;
    list-style: none; margin: 0 auto;
    padding: 0 32px; max-width: 1200px;
}
.horizontal-menu > ul > li { position: relative; }
.horizontal-menu > ul > li > a {
    display: flex; align-items: center; gap: 6px;
    padding: 14px 20px;
    font-size: 14px; font-weight: 500;
    text-decoration: none; color: #334155;
    border-bottom: 3px solid transparent;
    transition: all .2s;
    white-space: nowrap;
}
.horizontal-menu > ul > li > a:hover { background: var(--bg); text-decoration: none; }
.menu-icon { font-size: 14px; }
.caret { font-size: 10px; opacity: .6; margin-left: 2px; }

.horizontal-menu .submenu {
    display: none;
    position: absolute; top: 100%; left: 0;
    min-width: 220px;
    background: #fff; list-style: none;
    padding: 6px 0;
    box-shadow: var(--shadow-lg);
    border-radius: 0 0 var(--radius) var(--radius);
    border: 1px solid var(--border); border-top: none;
    z-index: 100;
}
.horizontal-menu .has-submenu:hover > .submenu { display: block; }
.horizontal-menu .submenu li a {
    display: block; padding: 10px 20px;
    font-size: 13.5px; text-decoration: none;
    color: #334155;
}
.horizontal-menu .submenu li a:hover { background: #f1f5f9; color: var(--primary); text-decoration: none; }

/* ============ SITE FOOTER ============ */
.site-footer {
    text-align: center; padding: 24px;
    color: var(--text-light); font-size: 13px;
    border-top: 1px solid var(--border);
    margin-top: 40px; background: #fff;
}

/* ============ CONTAINER & CARD ============ */
.container { max-width: 960px; margin: 32px auto; padding: 0 24px; }

.card {
    background: #fff;
    padding: 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}
.card h2 { color: var(--primary); margin-bottom: 10px; font-size: 20px; }
.card h3 { color: var(--primary); margin-bottom: 12px; font-size: 16px; }
.card p { color: #475569; margin-bottom: 8px; }

.muted { color: var(--text-light); font-size: 13px; }
.required { color: var(--danger); }

/* ============ STATS GRID ============ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}
.stat-box {
    background: #fff;
    padding: 22px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary);
}
.stat-number { font-size: 32px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.stat-box-warn { border-top-color: var(--warning); }
.stat-box-warn .stat-number { color: #b45309; }
.stat-box-info { border-top-color: var(--info); }
.stat-box-info .stat-number { color: var(--primary); }
.stat-link { text-decoration: none; color: inherit; display: block; }
.stat-link:hover { text-decoration: none; }
.stat-link .stat-box { transition: transform .15s, box-shadow .15s; }
.stat-link:hover .stat-box { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(30,64,175,.15); }

/* ============ MENU LIST ============ */
.menu-list { list-style: none; padding: 0; }
.menu-list li { padding: 12px 0; border-bottom: 1px solid var(--border); }
.menu-list li:last-child { border-bottom: none; }
.menu-list a { color: var(--primary); text-decoration: none; font-weight: 600; }
.menu-list a:hover { text-decoration: underline; }

/* ============ FORMS ============ */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 6px;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="datetime-local"],
.form-group input[type="file"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1.5px solid var(--border-dark);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    color: var(--text);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30,64,175,.1);
}
.form-group input[type="color"] {
    width: 100%; height: 46px;
    border: 1.5px solid var(--border-dark);
    border-radius: 8px; cursor: pointer; padding: 4px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.checkbox-group { display: flex; gap: 20px; padding: 8px 0; flex-wrap: wrap; }
.checkbox-label {
    display: flex; align-items: center; gap: 8px;
    cursor: pointer; font-size: 14px; font-weight: 500;
}
.checkbox-label input[type="checkbox"] { width: 18px; height: 18px; cursor: pointer; }

/* ============ BUTTONS ============ */
.btn-primary,
.btn-secondary,
.btn-danger,
.btn-sm {
    display: inline-block;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all .15s;
}
.btn-primary {
    background: var(--primary); color: #fff;
    padding: 11px 22px; font-size: 14px;
    margin-right: 8px;
}
.btn-primary:hover { background: var(--primary-hover); text-decoration: none; color: #fff; }
.btn-secondary {
    background: var(--border); color: #334155;
    padding: 11px 22px; font-size: 14px;
}
.btn-secondary:hover { background: var(--border-dark); text-decoration: none; color: #334155; }
.btn-danger {
    background: var(--danger); color: #fff;
    padding: 11px 22px; font-size: 14px;
}
.btn-danger:hover { background: #b91c1c; text-decoration: none; color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12px; border-radius: 6px; }
.btn-edit    { background: var(--primary-soft); color: var(--primary); }
.btn-edit:hover { background: #bfdbfe; text-decoration: none; color: var(--primary); }
.btn-delete  { background: var(--danger-soft); color: #991b1b; }
.btn-delete:hover { background: #fecaca; text-decoration: none; color: #991b1b; }
.btn-preview { background: #f1f5f9; color: #334155; }
.btn-preview:hover { background: var(--border); text-decoration: none; color: #334155; }
.btn-toggle  { background: #ede9fe; color: #6d28d9; }
.btn-toggle:hover { background: #ddd6fe; text-decoration: none; color: #6d28d9; }

/* ============ ALERTS ============ */
.alert-error, .alert-success, .alert-info {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 16px;
    border-left: 4px solid;
    line-height: 1.6;
}
.alert-error   { background: var(--danger-soft); color: #991b1b; border-color: var(--danger); }
.alert-success { background: var(--success-soft); color: #166534; border-color: var(--success); }
.alert-info    { background: var(--info-soft);   color: var(--primary); border-color: var(--info); }

/* =====================================================================
   TABLES — UNIFIED (works everywhere)
   ===================================================================== */
table,
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 16px 0;
    font-size: 14px;
    background: #fff;
    border: 1px solid var(--border-dark);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

/* Header cells */
table th,
.table th {
    background: linear-gradient(135deg, var(--primary) 0%, var(--info) 100%);
    color: #fff;
    padding: 12px 16px;
    text-align: left;
    font-size: 12.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-right: 1px solid rgba(255,255,255,.15);
    border-bottom: 2px solid var(--primary);
    vertical-align: middle;
}
table th:last-child,
.table th:last-child { border-right: none; }

/* Body cells */
table td,
.table td {
    padding: 12px 16px;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    vertical-align: top;
    color: var(--text-body);
    line-height: 1.6;
    transition: background .15s;
}
table td:last-child,
.table td:last-child { border-right: none; }
table tbody tr:last-child td,
.table tbody tr:last-child td { border-bottom: none; }

/* Hover baris */
table tbody tr:hover td,
.table tbody tr:hover td { background: #f0f9ff; }

/* Warna soft per kolom — hanya untuk tabel di materi (reader-content) */
.reader-content table tbody td:nth-child(1) { background-color: #eff6ff; }
.reader-content table tbody td:nth-child(2) { background-color: #f0fdf4; }
.reader-content table tbody td:nth-child(3) { background-color: #fef3c7; }
.reader-content table tbody td:nth-child(4) { background-color: #faf5ff; }
.reader-content table tbody td:nth-child(5) { background-color: #fef2f2; }
.reader-content table tbody td:nth-child(n+6) { background-color: #f8fafc; }

/* Hover override warna kolom */
.reader-content table tbody tr:hover td:nth-child(1) { background-color: #dbeafe; }
.reader-content table tbody tr:hover td:nth-child(2) { background-color: #dcfce7; }
.reader-content table tbody tr:hover td:nth-child(3) { background-color: #fef9c3; }
.reader-content table tbody tr:hover td:nth-child(4) { background-color: #f3e8ff; }
.reader-content table tbody tr:hover td:nth-child(5) { background-color: #fee2e2; }
.reader-content table tbody tr:hover td:nth-child(n+6) { background-color: #f1f5f9; }

/* Isian LKPD di dalam tabel */
table .material-input-text,
.table .material-input-text {
    background: #fff;
    border-bottom: 2px solid var(--primary);
    padding: 4px 8px;
}

/* Matrix table (override) */
.matrix-table th {
    font-size: 12px;
    white-space: nowrap;
}
.matrix-table td { font-size: 13px; }
.matrix-answer {
    background: var(--primary-light);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 12.5px;
    color: var(--text-body);
    line-height: 1.5;
    word-break: break-word;
    max-height: 150px;
    overflow-y: auto;
}

.table-wrap {
    overflow-x: auto;
    margin: -8px;
    padding: 8px;
}
.table-wrap .table { min-width: 720px; }

/* ============ MATERI GRID (Daftar) ============ */
.materi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}
.materi-card {
    background: #fff;
    padding: 22px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}
.materi-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 8px;
}
.materi-card h3 { color: var(--primary); font-size: 16px; line-height: 1.4; margin: 0; }
.materi-meta { display: flex; gap: 14px; margin-top: 10px; font-size: 12px; color: var(--text-muted); }
.progress-bar {
    height: 6px; background: var(--border);
    border-radius: 3px; margin-top: 12px; overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--info));
    transition: width .4s;
}

/* Badges */
.badge-done      { background: var(--success-soft); color: #166534; padding: 3px 8px; border-radius: 10px; font-size: 11px; font-weight: 700; white-space: nowrap; }
.badge-published { background: var(--success-soft); color: #166534; padding: 3px 10px; border-radius: 10px; font-size: 11px; font-weight: 700; }
.badge-draft     { background: var(--warning-soft); color: #92400e; padding: 3px 10px; border-radius: 10px; font-size: 11px; font-weight: 700; }
.badge-fail      { background: var(--danger-soft);  color: #991b1b; padding: 3px 10px; border-radius: 10px; font-size: 11px; font-weight: 700; }
.badge-self      { background: var(--warning-soft); color: #92400e; padding: 2px 8px; border-radius: 10px; font-size: 10px; font-weight: 700; margin-left: 4px; vertical-align: middle; }
.badge-answer    { background: #ede9fe; color: #6d28d9; padding: 3px 10px; border-radius: 10px; font-size: 12px; font-weight: 700; }
.badge-grade     { background: var(--info-soft); color: var(--primary); padding: 4px 12px; border-radius: 8px; font-size: 13px; font-weight: 700; display: inline-block; }
.badge-type      { display: inline-block; background: var(--text-muted); color: #fff; padding: 2px 8px; border-radius: 8px; font-size: 10px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase; vertical-align: middle; }

/* ============ MATERI READER ============ */
.materi-reader { max-width: 900px; margin: 0 auto; }
.reader-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.reader-title { color: var(--primary); font-size: 26px; margin-bottom: 4px; }
.reader-meta  { color: var(--text-muted); font-size: 13px; }

.reader-content {
    background: #fff;
    padding: 40px 44px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-body);
    margin-bottom: 20px;
}
.reader-content h2 {
    color: var(--primary);
    font-size: 22px;
    margin: 0 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border);
}
.reader-content h2:not(:first-child) { margin-top: 32px; }
.reader-content h3 { color: var(--primary); font-size: 18px; margin: 20px 0 10px; }
.reader-content p  { margin-bottom: 14px; }
.reader-content ul,
.reader-content ol { margin: 14px 0 14px 24px; }
.reader-content li { margin-bottom: 6px; }
.reader-content strong { color: var(--text); }

/* ============ MATERI COMPONENTS ============ */
.materi-header {
    background: var(--primary-light);
    border-left: 4px solid var(--primary);
    padding: 20px 24px;
    border-radius: 0 8px 8px 0;
    margin: 0 0 24px;
}
.materi-header h2 { margin: 0 0 6px; color: var(--primary); font-size: 24px; border: none; padding: 0; }
.materi-header p  { margin: 0; color: #475569; font-size: 14px; }

.materi-box {
    background: #d1fae5;
    border: 2px solid var(--success);
    border-radius: var(--radius);
    padding: 14px 20px;
    margin: 24px 0 18px;
}
.materi-box h3 {
    margin: 0; color: #000;
    font-family: 'Dancing Script', 'Brush Script MT', 'Segoe Script', cursive;
    font-size: 26px; font-weight: 700;
    letter-spacing: 0.5px;
}

.rumus-box {
    background: var(--primary);
    color: #fff;
    padding: 20px;
    border-radius: var(--radius);
    text-align: center;
    font-size: 1.4em;
    margin: 20px 0;
    font-weight: 700;
}

.info-box, .simpulan-box, .callout {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin: 16px 0;
    border-left: 5px solid;
    font-size: 14.5px;
    line-height: 1.7;
}
.info-box strong, .simpulan-box strong, .callout strong {
    display: block;
    margin-bottom: 6px;
    font-size: 15px;
}
.info-box p, .simpulan-box p, .callout p { margin: 0; }

.info-box      { background: var(--warning-soft); border-color: var(--warning); color: #78350f; }
.info-box strong { color: #92400e; }
.simpulan-box  { background: var(--success-soft); border-color: var(--success); color: #14532d; }
.simpulan-box strong { color: #166534; }
.callout-info    { background: var(--info-soft);    border-color: var(--info);    color: var(--primary); }
.callout-info strong { color: #1e3a8a; }
.callout-success { background: var(--success-soft); border-color: var(--success); color: #166534; }
.callout-success strong { color: #14532d; }
.callout-warn    { background: var(--warning-soft); border-color: var(--warning); color: #78350f; }
.callout-warn strong { color: #92400e; }
.callout-example { background: var(--purple-soft);  border-color: var(--purple);  color: #5b21b6; }
.callout-example strong { color: #4c1d95; }

.diskusi-box {
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    border: 2px solid #0ea5e9;
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    margin: 22px 0;
    box-shadow: 0 4px 14px rgba(14,165,233,.08);
}
.diskusi-box h3 { color: #0369a1; font-size: 17px; margin: 0 0 10px; padding: 0; border: none; }
.diskusi-box p  { margin: 6px 0; font-size: 14px; color: #0c4a6e; }
.diskusi-box ol,
.diskusi-box ul { margin: 8px 0 8px 22px; color: #0c4a6e; font-size: 14px; line-height: 1.7; }
.diskusi-box a { color: #0369a1; font-weight: 600; }

/* ============ READER NAV ============ */
.reader-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    background: #fff;
    padding: 16px 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    flex-wrap: wrap;
}
.btn-nav {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 18px; border-radius: 8px;
    font-size: 14px; font-weight: 600;
    text-decoration: none;
}
.btn-prev { background: var(--border); color: #334155; }
.btn-prev:hover { background: var(--border-dark); text-decoration: none; color: #334155; }
.btn-next { background: var(--primary); color: #fff; }
.btn-next:hover { background: var(--primary-hover); text-decoration: none; color: #fff; }
.btn-finish { background: var(--success); color: #fff; }
.btn-finish:hover { background: #15803d; text-decoration: none; color: #fff; }
.btn-disabled {
    background: #f1f5f9; color: #cbd5e1;
    cursor: not-allowed; pointer-events: none;
}
.page-indicator { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; }
.page-dot {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border-radius: 50%;
    background: #f1f5f9; color: var(--text-muted);
    font-size: 13px; font-weight: 600;
    text-decoration: none;
}
.page-dot:hover { background: #e0e7ff; color: var(--primary); text-decoration: none; }
.page-dot.active { background: var(--primary); color: #fff; transform: scale(1.1); }

/* ============ CODE EDITOR ============ */
.code-editor {
    width: 100%; padding: 16px;
    border: 1.5px solid var(--border-dark);
    border-radius: var(--radius);
    font-family: var(--mono);
    font-size: 13.5px; line-height: 1.6;
    background: var(--bg); resize: vertical;
    color: var(--text);
}
.code-editor:focus {
    outline: none; border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(30,64,175,.1);
}

.code-block {
    background: #0f172a; color: #e2e8f0;
    padding: 16px 20px; border-radius: var(--radius);
    overflow-x: auto; margin-top: 12px;
}
.code-block pre {
    font-family: var(--mono);
    font-size: 13px; line-height: 1.6;
    margin: 0; white-space: pre;
    background: none; padding: 0;
}

/* ============ SOAL ITEM ============ */
.soal-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px; margin-bottom: 14px;
    background: var(--bg-soft);
}
.soal-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.soal-text { color: var(--text-body); margin-bottom: 10px; font-size: 15px; }
.soal-options { display: flex; flex-direction: column; gap: 6px; }
.soal-option {
    padding: 8px 12px;
    border-radius: 6px;
    background: #fff;
    border: 1px solid var(--border);
    font-size: 14px;
}
.soal-option.correct { background: var(--success-soft); border-color: var(--success); color: #166534; font-weight: 600; }
.soal-option.wrong   { background: var(--danger-soft);  border-color: var(--danger);  color: #991b1b; }

.tag       { background: var(--success); color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 700; margin-left: 6px; }
.tag-wrong { background: var(--danger); }

.explanation-box {
    background: var(--warning-soft);
    border-left: 4px solid var(--warning);
    padding: 12px 14px; border-radius: 8px;
    margin-top: 12px; font-size: 14px;
}
.explanation-box p { margin-top: 6px; color: #78350f; }

/* ============ HASIL KUIS ============ */
.score-circle {
    width: 140px; height: 140px;
    border-radius: 50%;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    margin: 0 auto 10px;
    border: 6px solid;
}
.score-circle.lulus         { border-color: var(--success); background: var(--success-soft); }
.score-circle.tidak-lulus   { border-color: var(--danger);  background: var(--danger-soft); }
.score-circle.pending       { border-color: var(--warning); background: var(--warning-soft); }
.score-number { font-size: 48px; font-weight: 800; line-height: 1; }
.score-circle.lulus .score-number { color: #166534; }
.score-circle.tidak-lulus .score-number { color: #991b1b; }
.score-circle.pending .score-number { color: #92400e; }
.score-label { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; opacity: .7; margin-top: 4px; }

.score-badge {
    background: var(--primary-light);
    color: var(--primary);
    padding: 6px 12px; border-radius: 8px;
    font-size: 13px; margin-top: 10px;
    display: inline-block;
}

.result-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 420px;
    margin: 24px auto 0;
}
.result-item { background: var(--bg); padding: 14px 10px; border-radius: var(--radius); border: 1px solid var(--border); }
.result-num { font-size: 24px; font-weight: 700; color: var(--primary); }
.result-lbl { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.pending-icon {
    font-size: 72px; line-height: 1;
    margin-bottom: 8px;
    animation: pulse-warn 2s infinite;
}
@keyframes pulse-warn {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: .7; transform: scale(.95); }
}

/* ============ FILTER BAR ============ */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.filter-item { flex: 1; min-width: 150px; }
.filter-input,
.filter-select {
    width: 100%; padding: 10px 14px;
    border: 1.5px solid var(--border-dark);
    border-radius: 8px; font-size: 14px; background: #fff;
}
.filter-input:focus,
.filter-select:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30,64,175,.1);
}
.filter-bar .btn-primary,
.filter-bar .btn-secondary { padding: 10px 18px; white-space: nowrap; }

/* ============ PAGINATION ============ */
.pagination {
    display: flex; justify-content: center; align-items: center;
    gap: 4px; margin-top: 20px; flex-wrap: wrap;
}
.page-link {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 36px; height: 36px; padding: 0 12px;
    border-radius: 8px; background: #f1f5f9;
    color: #334155; font-size: 13px; font-weight: 600;
    text-decoration: none;
}
.page-link:hover { background: #e0e7ff; color: var(--primary); text-decoration: none; }
.page-link.active { background: var(--primary); color: #fff; }
.page-link.disabled { background: var(--bg); color: #cbd5e1; cursor: not-allowed; pointer-events: none; }

/* ============ LOG LIST ============ */
.log-list { display: flex; flex-direction: column; gap: 2px; }
.log-row {
    display: flex; gap: 14px; padding: 12px 14px;
    border-radius: 8px; border-left: 4px solid var(--border-dark);
    background: var(--bg-soft);
}
.log-row:hover { background: #f1f5f9; }
.log-row.log-hijau  { border-left-color: var(--success); }
.log-row.log-merah  { border-left-color: var(--danger); }
.log-row.log-kuning { border-left-color: var(--warning); }
.log-row.log-biru   { border-left-color: var(--info); }
.log-row.log-abu    { border-left-color: var(--text-light); }
.log-icon { font-size: 22px; line-height: 1.4; flex-shrink: 0; }
.log-body { flex: 1; min-width: 0; }
.log-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 3px; }
.log-head strong { font-size: 14px; color: var(--text-body); }
.log-time { margin-left: auto; font-size: 12px; color: var(--text-light); white-space: nowrap; }
.log-desc { font-size: 13px; color: #475569; margin: 4px 0; }
.log-meta { font-size: 11.5px; color: var(--text-light); font-family: var(--mono); }

.log-list-compact .log-row { padding: 8px 10px; margin-bottom: 4px; }
.log-list-compact .log-icon { font-size: 16px; }
.log-list-compact .log-head strong { font-size: 13px; }
.log-list-compact .log-desc { font-size: 12px; margin: 0; }

/* ============ TOP ACTIONS ============ */
.top-actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; }
.top-action-item {
    display: flex; align-items: center; gap: 10px;
    background: var(--bg); padding: 10px 14px;
    border-radius: 8px; border-left: 3px solid var(--primary);
}
.top-action-icon { font-size: 20px; }
.top-action-label { flex: 1; font-size: 13px; color: #334155; font-weight: 600; }
.top-action-count { background: var(--primary); color: #fff; padding: 3px 10px; border-radius: 10px; font-size: 12px; font-weight: 700; }

/* ============ CLEAR LOG ============ */
.clear-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-top: 12px; }
.clear-btn {
    width: 100%; padding: 16px 12px;
    background: #fff; border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer; text-align: center;
    font-family: inherit;
}
.clear-btn:hover:not(:disabled) { border-color: var(--danger); background: #fef2f2; }
.clear-btn:disabled { opacity: .4; cursor: not-allowed; }
.clear-days { display: block; font-size: 14px; font-weight: 700; color: var(--text-body); margin-bottom: 4px; }
.clear-count { display: block; font-size: 12px; color: var(--text-muted); }

/* ============ DANGER ZONE ============ */
.danger-zone { border: 2px solid #fecaca; background: #fef2f2; }
.danger-zone h3 { color: #991b1b; }
.danger-zone p  { color: #7f1d1d; }

/* ============ CHART ============ */
.chart-grid { display: grid; grid-template-columns: 1fr; gap: 20px; margin-bottom: 20px; }
.chart-grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.chart-container { position: relative; width: 100%; }

/* ============ ACCORDION ============ */
.info-accordion {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 12px; overflow: hidden;
    background: #fff;
}
.info-accordion summary {
    padding: 14px 18px; cursor: pointer;
    font-weight: 600; color: var(--primary); font-size: 15px;
    list-style: none;
    display: flex; justify-content: space-between; align-items: center;
    background: var(--bg);
}
.info-accordion summary:hover { background: #f1f5f9; }
.info-accordion summary::-webkit-details-marker { display: none; }
.accordion-arrow { transition: transform .2s; font-size: 12px; opacity: .6; }
.info-accordion[open] .accordion-arrow { transform: rotate(180deg); }
.accordion-body { padding: 16px 18px; border-top: 1px solid var(--border); }

/* ============ TAG GRID ============ */
.tag-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 16px; }
.tag-group { background: var(--bg); padding: 14px; border-radius: 8px; border-left: 3px solid var(--primary); }
.tag-group h4 { color: var(--primary); font-size: 13px; margin-bottom: 8px; text-transform: uppercase; letter-spacing: .5px; }
.tag-group code { display: inline-block; background: #fff; border: 1px solid var(--border); padding: 2px 6px; border-radius: 4px; font-size: 11.5px; color: var(--primary); margin: 2px 2px 2px 0; }

/* ============ MATERI FINISH CTA ============ */
.materi-finish-cta {
    margin-top: 24px;
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border: 2px solid #10b981;
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: 0 8px 30px rgba(16,185,129,.12);
}
.cta-header {
    display: flex; gap: 16px; align-items: flex-start;
    margin-bottom: 22px; padding-bottom: 20px;
    border-bottom: 1px dashed #10b981;
}
.cta-icon { font-size: 42px; line-height: 1; }
.cta-header h2 { color: #065f46; font-size: 20px; margin-bottom: 4px; line-height: 1.3; }
.cta-header p  { color: #047857; font-size: 14px; margin: 0; }

.quiz-card-cta {
    background: #fff; border-radius: var(--radius);
    padding: 20px; margin-bottom: 14px;
    display: flex; justify-content: space-between;
    gap: 16px; flex-wrap: wrap; align-items: center;
    box-shadow: 0 4px 14px rgba(0,0,0,.04);
    border-left: 4px solid var(--primary);
}
.quiz-info { flex: 1; min-width: 220px; }
.quiz-info h3 { color: var(--primary); font-size: 16px; margin: 0; }
.quiz-meta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; font-size: 13px; color: var(--text-muted); }
.quiz-score { margin-top: 10px; font-size: 13px; color: #475569; }
.score-pass { color: var(--success); font-size: 16px; }
.score-fail { color: var(--danger);  font-size: 16px; }
.quiz-action { display: flex; flex-direction: column; gap: 8px; min-width: 170px; }
.btn-quiz-start {
    background: var(--primary); color: #fff;
    padding: 12px 20px; border-radius: 8px;
    text-decoration: none; font-size: 14px; font-weight: 600;
    text-align: center;
}
.btn-quiz-start:hover { background: var(--primary-hover); text-decoration: none; color: #fff; }
.btn-quiz-secondary {
    background: #f1f5f9; color: #334155;
    padding: 9px 16px; border-radius: 8px;
    text-decoration: none; font-size: 13px; font-weight: 600;
    text-align: center;
}
.btn-quiz-secondary:hover { background: var(--border); text-decoration: none; color: #334155; }
.cta-footer {
    display: flex; justify-content: space-between; gap: 10px;
    flex-wrap: wrap; margin-top: 18px; padding-top: 18px;
    border-top: 1px dashed #10b981;
}

/* ============ TYPE PICKER ============ */
.type-picker { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 8px; }
.type-option {
    display: flex; flex-direction: column; align-items: center;
    gap: 6px; padding: 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer; background: #fff; text-align: center;
}
.type-option:hover { border-color: #93c5fd; background: #f0f9ff; }
.type-option.active { border-color: var(--primary); background: var(--primary-light); }
.type-option input { display: none; }
.type-icon { font-size: 22px; }
.type-label { font-size: 13px; font-weight: 600; color: #334155; }
.type-option.active .type-label { color: var(--primary); }

/* ============ ESSAY INPUT ============ */
.essay-input {
    width: 100%; padding: 12px 14px;
    border: 1.5px solid var(--border-dark);
    border-radius: 8px;
    font-family: inherit; font-size: 14px;
    line-height: 1.6; resize: vertical;
    box-sizing: border-box;
}
.essay-input:focus {
    outline: none; border-color: var(--purple);
    box-shadow: 0 0 0 3px rgba(124,58,237,.1);
}
.essay-counter { text-align: right; font-size: 12px; color: var(--text-light); margin-top: 4px; }

/* ============ FILE UPLOAD ============ */
.file-upload-info {
    background: #f0f9ff;
    border-left: 3px solid var(--info);
    padding: 8px 12px; border-radius: 6px;
    font-size: 13px; color: #334155;
    margin: 12px 0 10px;
}
.file-upload-info code { background: #fff; padding: 1px 6px; border-radius: 4px; font-size: 12px; color: var(--primary); }
.file-drop {
    display: block; border: 2px dashed var(--border-dark);
    border-radius: var(--radius); padding: 24px;
    text-align: center; cursor: pointer;
    background: var(--bg-soft);
}
.file-drop:hover, .file-drop.dragover { border-color: var(--primary); background: var(--primary-light); }
.file-drop-icon { font-size: 32px; margin-bottom: 8px; }
.file-drop-text { font-size: 14px; color: var(--text-muted); }
.file-drop-text strong { color: var(--primary); }
.file-preview {
    display: flex; align-items: center; gap: 12px;
    background: var(--success-soft);
    border: 1.5px solid var(--success);
    border-radius: 8px; padding: 12px 14px;
    margin-top: 10px;
}
.file-preview-icon { font-size: 24px; }
.file-preview-info { flex: 1; min-width: 0; }
.file-preview-info strong { display: block; font-size: 14px; color: #166534; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-preview-info small { color: #15803d; font-size: 12px; }
.btn-remove-file {
    background: var(--danger); color: #fff; border: none;
    width: 28px; height: 28px; border-radius: 50%;
    cursor: pointer; font-size: 14px; font-weight: 700;
    flex-shrink: 0;
}

/* ============ ANSWER REVIEW ============ */
.answer-review { background: var(--bg); border-radius: var(--radius); padding: 14px; margin-top: 10px; }
.answer-label { font-size: 12px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 8px; }
.answer-box {
    background: #fff; border: 1px solid var(--border);
    border-radius: 6px; padding: 12px 14px;
    font-size: 14px; line-height: 1.6;
    color: var(--text-body); min-height: 50px;
    white-space: pre-wrap;
}
.file-review {
    display: flex; align-items: center; gap: 12px;
    background: #fff; border: 1px solid var(--border);
    border-radius: 8px; padding: 12px 14px;
    margin-top: 8px;
}
.file-review .file-icon { font-size: 26px; }
.file-review strong { font-size: 14px; color: var(--text-body); display: block; }
.answer-grade { margin-top: 10px; }
.teacher-notes {
    background: var(--warning-soft);
    border-left: 3px solid var(--warning);
    border-radius: 6px; padding: 10px 14px;
    margin-top: 10px; font-size: 13px;
}
.teacher-notes strong { color: #92400e; display: block; margin-bottom: 4px; }
.teacher-notes p { color: #78350f; margin: 0; }

.grading-box {
    background: #fef9c3; border-radius: 8px;
    padding: 14px; margin-top: 12px;
    border: 1px solid #fde047;
}
.grading-box .form-group label { color: #713f12; }
.grading-box input,
.grading-box textarea { background: #fff; }

/* ============ MATERIAL INPUT (LKPD) ============ */
.material-input-wrap { display: inline-block; max-width: 100%; }
.material-input-text {
    padding: 6px 10px;
    border: none;
    border-bottom: 2px solid var(--text-light);
    background: #fffbeb;
    font-family: inherit; font-size: inherit;
    color: var(--text-body);
    vertical-align: middle;
    border-radius: 4px 4px 0 0;
    transition: all .15s;
}
.material-input-text:focus {
    outline: none;
    border-bottom-color: var(--warning);
    background: var(--warning-soft);
    box-shadow: 0 2px 0 0 var(--warning);
}
.material-input-block { margin: 14px 0; }
.material-input-area {
    width: 100%; padding: 12px 14px;
    border: 1.5px solid var(--border-dark);
    border-radius: var(--radius);
    font-family: inherit; font-size: 14.5px;
    line-height: 1.6; resize: vertical;
    background: #fffbeb; color: var(--text-body);
    box-sizing: border-box;
    transition: all .15s;
}
.material-input-area:focus {
    outline: none;
    border-color: var(--warning);
    background: var(--warning-soft);
    box-shadow: 0 0 0 3px rgba(245,158,11,.15);
}
.material-input.saving { border-color: var(--info) !important; background: var(--primary-light) !important; }
.material-input.saved  { border-color: var(--success) !important; background: #f0fdf4 !important; }
.material-input.error  { border-color: var(--danger) !important; background: #fef2f2 !important; }

.material-input-static {
    display: inline-block; padding: 4px 10px;
    background: #f1f5f9; border-radius: 6px;
    color: #334155; font-size: 0.95em;
    min-width: 60px;
    border-bottom: 2px solid var(--text-light);
    max-width: 100%; white-space: pre-wrap;
    word-break: break-word; vertical-align: middle;
}

.input-save-toast {
    position: fixed; bottom: 24px; right: 24px;
    background: var(--success); color: #fff;
    padding: 10px 18px; border-radius: var(--radius);
    font-size: 13px; font-weight: 600;
    box-shadow: 0 8px 24px rgba(0,0,0,.2);
    opacity: 0; transform: translateY(20px);
    transition: all .3s; z-index: 9999;
    pointer-events: none;
}
.input-save-toast.show { opacity: 1; transform: translateY(0); }

/* ============ YOUTUBE PREVIEW ============ */
.youtube-preview-container { display: none; margin-top: 14px; }
.youtube-preview {
    background: #fef2f2;
    border: 2px solid var(--danger);
    border-radius: var(--radius); padding: 14px 16px;
    margin: 12px 0; max-width: 100%;
}
.youtube-preview-header {
    font-size: 13px; font-weight: 700; color: #991b1b;
    margin-bottom: 10px; text-transform: uppercase;
    letter-spacing: 0.5px;
}
.youtube-preview-frame {
    position: relative; width: 100%; max-width: 560px;
    aspect-ratio: 16 / 9; border-radius: 8px;
    overflow: hidden; background: #000;
    margin: 0 auto;
}
.youtube-preview-frame iframe {
    position: absolute; top: 0; left: 0;
    width: 100%; height: 100%; border: none;
}

/* ============ CLASS PICKER ============ */
.class-picker {
    border: 1.5px solid var(--border-dark);
    border-radius: var(--radius); background: #fff;
    max-height: 420px; overflow-y: auto;
}
.class-picker-toolbar {
    position: sticky; top: 0;
    background: var(--bg); padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    display: flex; gap: 8px; flex-wrap: wrap;
    align-items: center; z-index: 5;
}
.class-picker-toolbar .btn-pick {
    background: var(--primary-light); border: 1px solid #bfdbfe;
    color: var(--primary); padding: 5px 12px;
    border-radius: 6px; font-size: 12px; font-weight: 600;
    cursor: pointer; font-family: inherit;
}
.class-picker-toolbar .btn-pick:hover { background: var(--primary-soft); }
.class-picker-toolbar .btn-pick.btn-clear { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.class-picker-toolbar .btn-pick.btn-clear:hover { background: var(--danger-soft); }
.class-picker-toolbar .count-info { margin-left: auto; font-size: 12px; color: var(--text-muted); font-weight: 600; }
.class-picker-toolbar .count-info strong { color: var(--primary); }
.class-picker-search {
    width: calc(100% - 28px); margin: 8px 14px 0;
    padding: 8px 12px; border: 1px solid var(--border);
    border-radius: 6px; font-size: 13px; font-family: inherit;
}
.class-school-group { border-bottom: 1px solid #f1f5f9; }
.class-school-group:last-child { border-bottom: none; }
.class-school-header {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px; background: var(--bg);
    cursor: pointer; user-select: none;
}
.class-school-header:hover { background: #f1f5f9; }
.class-school-header strong { font-size: 13.5px; color: var(--text-body); flex: 1; }
.class-school-header .school-check { width: 16px; height: 16px; cursor: pointer; }
.class-school-header .school-count {
    font-size: 11px; color: var(--text-light);
    background: #fff; padding: 2px 8px;
    border-radius: 8px; border: 1px solid var(--border);
}
.class-school-body {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 6px; padding: 10px 14px 14px;
}
.class-check-item {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 10px; background: #fff;
    border: 1.5px solid var(--border);
    border-radius: 8px; cursor: pointer;
    font-size: 13px;
    transition: all .12s;
}
.class-check-item:hover { border-color: #93c5fd; background: #f0f9ff; }
.class-check-item:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); font-weight: 600; }
.class-check-item input[type="checkbox"] { width: 16px; height: 16px; cursor: pointer; flex-shrink: 0; }
.class-check-item .class-name { flex: 1; color: var(--text-body); }
.class-check-item .class-year { font-size: 10px; color: var(--text-muted); font-weight: normal; }

/* ============ EDITOR TOOLBAR ============ */
.editor-toolbar {
    display: flex; gap: 6px; flex-wrap: wrap;
    margin-bottom: 10px; padding: 10px;
    background: #f1f5f9; border-radius: 8px;
    border: 1px solid var(--border);
}
.btn-tool {
    background: #fff; color: var(--primary);
    border: 1.5px solid var(--border-dark);
    padding: 7px 14px; border-radius: 6px;
    cursor: pointer; font-size: 13px; font-weight: 600;
    font-family: inherit;
}
.btn-tool:hover { background: var(--primary-light); border-color: var(--primary); }
.btn-tool-upload { display: inline-block; user-select: none; }

/* ============ DISKUSI PANEL ============ */
.diskusi-panel {
    background: #fff;
    border: 2px solid #e0e7ff;
    border-radius: var(--radius);
    margin: 24px 0; overflow: hidden;
    box-shadow: 0 4px 20px rgba(99,102,241,.08);
}
.diskusi-header {
    background: linear-gradient(135deg, #eef2ff, #e0e7ff);
    padding: 14px 20px;
    display: flex; justify-content: space-between; align-items: center;
    border-bottom: 1px solid #e0e7ff;
}
.diskusi-header > div { display: flex; align-items: center; gap: 10px; }
.diskusi-icon { font-size: 22px; }
.diskusi-header strong { color: #3730a3; font-size: 16px; }
.diskusi-count { background: #6366f1; color: #fff; padding: 3px 10px; border-radius: 10px; font-size: 11px; font-weight: 700; }
.btn-refresh-diskusi {
    background: #fff; border: 1px solid #c7d2fe;
    border-radius: 6px; padding: 5px 10px;
    cursor: pointer; font-size: 14px;
}
.btn-refresh-diskusi:hover { background: #e0e7ff; }
.diskusi-list { max-height: 500px; overflow-y: auto; padding: 16px 20px; background: #fafbff; }
.diskusi-loading, .diskusi-empty {
    text-align: center; color: var(--text-light);
    padding: 30px 20px; font-size: 14px; font-style: italic;
}
.diskusi-item { display: flex; gap: 12px; margin-bottom: 16px; align-items: flex-start; }
.diskusi-item.diskusi-self .diskusi-body { background: var(--primary-light); border-color: #bfdbfe; }
.diskusi-avatar {
    width: 40px; height: 40px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 16px; flex-shrink: 0;
}
.diskusi-avatar-siswa { background: var(--info); }
.diskusi-avatar-guru  { background: var(--success); }
.diskusi-avatar-admin { background: var(--warning); }
.diskusi-body {
    flex: 1; background: #fff; border: 1px solid var(--border);
    border-radius: var(--radius); padding: 10px 14px;
    min-width: 0;
}
.diskusi-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; flex-wrap: wrap; }
.diskusi-meta strong { font-size: 13.5px; color: var(--text-body); }
.diskusi-role { font-size: 9px; font-weight: 700; padding: 2px 6px; border-radius: 4px; }
.diskusi-role-guru  { background: var(--success-soft); color: #166534; }
.diskusi-role-admin { background: var(--warning-soft); color: #92400e; }
.diskusi-time { font-size: 11px; color: var(--text-light); margin-left: auto; }
.diskusi-content { font-size: 14px; color: #334155; line-height: 1.6; word-wrap: break-word; }
.diskusi-form { padding: 14px 20px; background: #fff; border-top: 1px solid #e0e7ff; }
.diskusi-input {
    width: 100%; padding: 12px 14px;
    border: 1.5px solid var(--border-dark);
    border-radius: var(--radius);
    font-family: inherit; font-size: 14px;
    line-height: 1.6; resize: vertical;
    background: #fafbff; box-sizing: border-box;
}
.diskusi-input:focus { outline: none; border-color: #6366f1; background: #fff; box-shadow: 0 0 0 3px rgba(99,102,241,.1); }
.diskusi-form-footer {
    display: flex; justify-content: space-between; align-items: center;
    margin-top: 8px; gap: 10px; flex-wrap: wrap;
}
.diskusi-char-counter { font-size: 12px; color: var(--text-light); }
.btn-kirim-diskusi {
    background: #6366f1; color: #fff; border: none;
    padding: 9px 22px; border-radius: 8px;
    font-size: 14px; font-weight: 600; cursor: pointer;
}
.btn-kirim-diskusi:hover { background: #4f46e5; }
.btn-kirim-diskusi:disabled { background: var(--border-dark); cursor: not-allowed; }
.diskusi-login-hint { padding: 20px; text-align: center; background: var(--warning-soft); color: #78350f; font-size: 14px; }
.diskusi-login-hint a { color: var(--primary); font-weight: 700; }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
    .chart-grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .form-row { grid-template-columns: 1fr; }
    .header-inner { flex-wrap: wrap; }
    .horizontal-menu > ul { padding: 0 12px; overflow-x: auto; }
    .horizontal-menu > ul > li > a { padding: 12px 14px; font-size: 13px; }

    .container { padding: 0 16px; margin: 20px auto; }
    .card { padding: 20px 16px; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-number { font-size: 24px; }
    .stat-label { font-size: 11px; }

    .reader-content { padding: 24px 20px; font-size: 15px; }
    .reader-title { font-size: 20px; }
    .reader-nav { justify-content: center; }
    .btn-nav { padding: 9px 14px; font-size: 13px; }
    .page-dot { width: 28px; height: 28px; font-size: 12px; }

    table, .table { font-size: 13px; }
    table th, .table th,
    table td, .table td { padding: 10px 12px; }

    .filter-bar { flex-direction: column; }
    .filter-item { width: 100%; }
    .filter-bar .btn-primary,
    .filter-bar .btn-secondary { width: 100%; }
    .page-link { min-width: 32px; height: 32px; font-size: 12px; padding: 0 8px; }

    .chart-container { height: 240px !important; }

    .type-picker { grid-template-columns: 1fr; }
    .file-drop { padding: 16px; }
    .grading-box .form-row { grid-template-columns: 1fr; }

    .diskusi-item { gap: 8px; }
    .diskusi-avatar { width: 34px; height: 34px; font-size: 14px; }
    .diskusi-body { padding: 8px 12px; }
    .diskusi-time { display: block; margin-left: 0; width: 100%; }

    .materi-finish-cta { padding: 20px 16px; }
    .cta-icon { font-size: 32px; }
    .cta-header h2 { font-size: 17px; }
    .quiz-card-cta { flex-direction: column; align-items: stretch; }
    .quiz-action { min-width: 0; }
    .cta-footer { flex-direction: column; }
    .cta-footer a { text-align: center; }

    .input-save-toast { bottom: 16px; right: 16px; left: 16px; text-align: center; }
    .log-head { flex-direction: column; align-items: flex-start; }
    .log-time { margin-left: 0; }
}

/* ============ PRINT ============ */
@media print {
    .site-header,
    .horizontal-menu,
    .site-footer,
    .no-print,
    .reader-nav,
    .btn-logout,
    .header-notif,
    .header-btn-profil {
        display: none !important;
    }
    body { background: #fff; }
    .container { max-width: 100%; margin: 0; padding: 0; }
    .card {
        box-shadow: none;
        border: 1px solid #ccc;
        padding: 20px;
    }
    table, .table {
        box-shadow: none;
        border: 1px solid #000;
    }
    table th, .table th {
        background: var(--primary) !important;
        color: #fff !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    .reader-content table tbody td:nth-child(1),
    .reader-content table tbody td:nth-child(2),
    .reader-content table tbody td:nth-child(3),
    .reader-content table tbody td:nth-child(4),
    .reader-content table tbody td:nth-child(5) {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    @page { size: A4; margin: 1.5cm 1.8cm; }
}
/* =====================================================================
   KATEX — Render Matematika
   ===================================================================== */

.katex {
    font-size: 1.08em;
    color: #0f172a;
}

.katex-display {
    margin: 1.2em 0;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 4px 0;
}

.katex-display > .katex {
    display: inline-block;
    white-space: nowrap;
    max-width: 100%;
}

/* Math di dalam tabel */
table .katex,
.table .katex {
    font-size: 1em;
}

/* Math di dalam callout */
.callout .katex,
.materi-box .katex,
.rumus-box .katex {
    font-size: 1.1em;
}

/* Rumus-box dengan KaTeX display */
.rumus-box .katex-display {
    margin: 0;
}

.rumus-box .katex {
    color: #fff;
}

/* Math inline di tengah kalimat */
p .katex {
    padding: 0 2px;
}

/* Math di mobile */
@media (max-width: 640px) {
    .katex {
        font-size: 1em;
    }
    .katex-display {
        font-size: 0.95em;
    }
}

/* Print */
@media print {
    .katex {
        color: #000 !important;
    }
}