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

:root {
    --primary:       #1a237e;
    --primary-light: #283593;
    --accent:        #42a5f5;
    --accent-hover:  #1e88e5;
    --danger:        #e53935;
    --danger-hover:  #c62828;
    --success:       #43a047;
    --success-bg:    #e8f5e9;
    --error-bg:      #ffebee;
    --surface:       #ffffff;
    --bg:            #f0f4f8;
    --border:        #dde3ec;
    --text:          #1c2340;
    --text-muted:    #6b778c;
    --sidebar-width: 260px;
    --navbar-height: 60px;
    --radius:        8px;
    --radius-lg:     12px;
    --shadow:        0 2px 8px rgba(26,35,126,0.08);
    --shadow-lg:     0 8px 32px rgba(26,35,126,0.14);
    --transition:    0.18s ease;
}

html, body {
    height: 100%;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 15px;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

/* Utility */
.hidden     { display: none !important; }
.text-muted { color: var(--text-muted); font-size: 0.92em; }
.mt-2       { margin-top: 10px; }
.no-padding { padding: 0 !important; }

/* ── Auth Overlay ──────────────────────────────────────────────────── */
.auth-overlay {
    position: fixed; inset: 0; background: var(--bg);
    display: flex; align-items: center; justify-content: center;
    flex-direction: column; gap: 28px; z-index: 500;
}
.auth-brand {
    display: flex; align-items: center; gap: 10px;
    color: var(--primary); font-size: 1.6rem; font-weight: 800;
}
.auth-card {
    background: var(--surface); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); border: 1px solid var(--border);
    width: 420px; max-width: calc(100vw - 32px);
}
.auth-tabs { display: flex; border-bottom: 1px solid var(--border); }
.auth-tab {
    flex: 1; padding: 14px; text-align: center;
    font-weight: 600; font-size: 0.9rem; cursor: pointer;
    color: var(--text-muted); background: transparent; border: none;
    border-bottom: 2px solid transparent; transition: all var(--transition);
}
.auth-tab.active { color: #fff; border-bottom-color: var(--accent); background: var(--accent); }
.auth-body { padding: 24px 28px; }
.auth-error {
    background: var(--error-bg); color: var(--danger);
    border: 1px solid #ffcdd2; border-radius: var(--radius);
    padding: 10px 14px; font-size: 0.88rem; margin-bottom: 16px;
}
.auth-success {
    background: var(--success-bg); color: #2e7d32;
    border: 1px solid #c8e6c9; border-radius: var(--radius);
    padding: 12px 14px; font-size: 0.9rem; line-height: 1.5;
}
.auth-footer { text-align: center; padding: 0 28px 20px; font-size: 0.85rem; color: var(--text-muted); }
.auth-disclaimer { font-size: 0.78rem; color: var(--text-muted); text-align: center; max-width: 380px; line-height: 1.5; }

/* ── Disclaimer bar ────────────────────────────────────────────────── */
.disclaimer-bar {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
    background: #fffde7; border-top: 1px solid #ffe082;
    color: #5f4500; font-size: 0.75rem; text-align: center;
    padding: 5px 16px; line-height: 1.4;
}

/* ── Navbar ────────────────────────────────────────────────────────── */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    height: var(--navbar-height);
    background: var(--primary);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 24px; z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.25);
}
.navbar-brand {
    display: flex; align-items: center; gap: 10px;
    color: #fff; font-size: 1.25rem; font-weight: 700; letter-spacing: -0.3px;
}
.navbar-nav { display: flex; gap: 4px; align-items: center; }
.nav-btn {
    display: flex; align-items: center; gap: 7px;
    padding: 7px 16px; background: transparent;
    color: rgba(255,255,255,0.75);
    border: 1.5px solid transparent; border-radius: 6px;
    font-size: 0.88rem; font-weight: 500; cursor: pointer;
    transition: all var(--transition);
}
.nav-btn:hover { color: #fff; background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.15); }
.nav-btn.active { color: #fff; background: rgba(66,165,245,0.25); border-color: var(--accent); }
.navbar-user-info {
    display: flex; align-items: center; gap: 8px;
    color: rgba(255,255,255,0.9); font-size: 0.85rem;
    padding: 5px 12px; border-radius: 6px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
}
.navbar-user-role {
    font-size: 0.7rem; background: rgba(255,255,255,0.15);
    padding: 2px 7px; border-radius: 10px;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.nav-divider { width: 1px; height: 24px; background: rgba(255,255,255,0.18); margin: 0 4px; }

/* ── Layout ─────────────────────────────────────────────────────────── */
.app-layout {
    display: flex;
    margin-top: var(--navbar-height);
    min-height: calc(100vh - var(--navbar-height));
}

/* ── Sidebar ─────────────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width); background: var(--primary);
    display: flex; flex-direction: column;
    position: fixed; top: var(--navbar-height); left: 0; bottom: 0;
    overflow: hidden; z-index: 50;
}
.sidebar-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px 18px 14px;
    color: rgba(255,255,255,0.55); font-size: 0.75rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 1px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-list { flex: 1; overflow-y: auto; padding: 10px 0; }
.sidebar-list::-webkit-scrollbar { width: 4px; }
.sidebar-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }
.sidebar-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 18px; color: rgba(255,255,255,0.75);
    cursor: pointer; transition: all var(--transition);
    border-left: 3px solid transparent; font-size: 0.92rem;
}
.sidebar-item:hover { background: rgba(255,255,255,0.07); color: #fff; }
.sidebar-item.active { background: rgba(66,165,245,0.18); color: #fff; border-left-color: var(--accent); }
.sidebar-item-icon {
    width: 28px; height: 28px; background: rgba(255,255,255,0.1);
    border-radius: 6px; display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; font-size: 0.8rem; font-weight: 700; color: var(--accent);
}
.sidebar-item.active .sidebar-item-icon { background: rgba(66,165,245,0.25); }
.sidebar-item-text { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sidebar-empty { padding: 20px 18px; color: rgba(255,255,255,0.35); font-size: 0.88rem; font-style: italic; }
.sidebar-footer { padding: 14px 14px 20px; border-top: 1px solid rgba(255,255,255,0.08); }

/* ── Main content ────────────────────────────────────────────────────── */
.main-content {
    flex: 1; margin-left: var(--sidebar-width);
    padding: 32px 36px 48px;
    min-height: calc(100vh - var(--navbar-height));
    transition: margin-left var(--transition);
}
.main-content.no-sidebar { margin-left: 0; }

/* ── Views ───────────────────────────────────────────────────────────── */
.view { display: none; }
.view.active { display: block; }
.view-header { margin-bottom: 28px; }
.view-header h1 { font-size: 1.8rem; font-weight: 700; color: var(--primary); margin-bottom: 4px; letter-spacing: -0.4px; }

/* ── Home Dashboard ──────────────────────────────────────────────────── */
.home-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 8px;
}
.home-tile {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 36px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
    text-align: center;
}
.home-tile:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
    transform: translateY(-2px);
}
.home-tile-icon {
    width: 56px; height: 56px;
    border-radius: 14px;
    background: #e8f0fe;
    display: flex; align-items: center; justify-content: center;
    color: var(--primary);
}
.home-tile-label {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
}
.home-tile-stats {
    display: flex; gap: 16px; margin-top: 4px;
    border-top: 1px solid var(--border); padding-top: 10px; width: 100%;
    justify-content: center;
}
.home-tile-stat { display: flex; flex-direction: column; align-items: center; gap: 1px; }
.home-tile-stat-val { font-size: 1.1rem; font-weight: 800; color: var(--primary); }
.home-tile-stat-lbl { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.4px; }

/* ── Cards ───────────────────────────────────────────────────────────── */
.card {
    background: var(--surface); border-radius: var(--radius-lg);
    box-shadow: var(--shadow); border: 1px solid var(--border);
    margin-bottom: 20px; overflow: hidden;
}
.card-header {
    display: flex; align-items: center; gap: 8px;
    padding: 14px 20px; background: #f7f9fc;
    border-bottom: 1px solid var(--border);
    font-weight: 600; font-size: 0.9rem; color: var(--primary);
}
.card-body { padding: 20px; }

/* ── Toolbar ─────────────────────────────────────────────────────────── */
.section-toolbar {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px; flex-wrap: wrap; gap: 12px;
}
.toolbar-left { display: flex; align-items: center; gap: 12px; }
.section-title { font-size: 1.4rem; font-weight: 700; color: var(--primary); letter-spacing: -0.3px; }
.badge {
    background: var(--accent); color: white;
    font-size: 0.75rem; font-weight: 700;
    padding: 2px 9px; border-radius: 20px; letter-spacing: 0.3px;
}

/* ── Buttons ─────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 9px 18px; border: none; border-radius: var(--radius);
    font-size: 0.9rem; font-weight: 600; cursor: pointer;
    transition: all var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(66,165,245,0.4); }
.btn-secondary { background: #eef2f7; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #e2e8f2; border-color: #c5cfe0; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(229,57,53,0.35); }
.btn-sm { padding: 6px 12px; font-size: 0.82rem; }
.btn-full { width: 100%; justify-content: center; }
.btn-icon {
    width: 32px; height: 32px; padding: 0;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.1); border: none; border-radius: 6px;
    cursor: pointer; color: rgba(255,255,255,0.8); transition: all var(--transition); flex-shrink: 0;
}
.btn-icon:hover { background: rgba(255,255,255,0.2); color: #fff; }
.btn-remove-col {
    width: 30px; height: 30px; background: #ffeaea; color: var(--danger);
    border: 1px solid #ffd0d0; border-radius: 6px; flex-shrink: 0;
}
.btn-remove-col:hover { background: var(--danger); color: white; border-color: var(--danger); }
.btn-remove-col.disabled { opacity: 0.3; cursor: not-allowed; }

/* ── Forms ───────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-weight: 600; font-size: 0.88rem; color: var(--text); margin-bottom: 7px; }
.form-control {
    width: 100%; padding: 9px 13px;
    border: 1.5px solid var(--border); border-radius: var(--radius);
    font-size: 0.9rem; color: var(--text); background: #fff;
    transition: border-color var(--transition), box-shadow var(--transition); outline: none;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(66,165,245,0.15); }
.form-control::placeholder { color: #aab4c4; }
.form-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px; margin-bottom: 14px;
}
.form-field-group { display: flex; flex-direction: column; gap: 5px; }
.form-field-group label {
    font-size: 0.8rem; font-weight: 600; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.column-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.column-row .form-control { flex: 1; }

/* ── Data table ──────────────────────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.data-table th {
    padding: 10px 16px; background: #f7f9fc; color: var(--primary);
    font-weight: 700; text-align: left; border-bottom: 2px solid var(--border);
    font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; white-space: nowrap;
}
.th-edit-btn {
    width: 20px; height: 20px; padding: 0;
    display: inline-flex; align-items: center; justify-content: center;
    background: transparent; border: none; border-radius: 4px;
    color: var(--text-muted); cursor: pointer; opacity: 0;
    transition: all var(--transition); vertical-align: middle; margin-left: 5px;
}
.data-table th:hover .th-edit-btn { opacity: 1; }
.th-edit-btn:hover { background: var(--border); color: var(--primary); }
.data-table td { padding: 11px 16px; border-bottom: 1px solid var(--border); color: var(--text); vertical-align: middle; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: #f8fafd; }
.data-table .col-actions { width: 60px; text-align: center; }
.data-table .btn-delete-row {
    width: 28px; height: 28px; padding: 0;
    display: inline-flex; align-items: center; justify-content: center;
    background: #ffeaea; border: 1px solid #ffd0d0; border-radius: 5px;
    color: var(--danger); cursor: pointer; transition: all var(--transition);
}
.data-table .btn-delete-row:hover { background: var(--danger); color: white; border-color: var(--danger); }
.table-empty { padding: 40px 20px; text-align: center; color: var(--text-muted); font-size: 0.9rem; }

/* ── Welcome grid ────────────────────────────────────────────────────── */
.welcome-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; margin-top: 8px; }
.table-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 12px 14px;
    cursor: pointer; transition: all var(--transition);
    box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.table-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--primary)); opacity: 0; transition: opacity var(--transition);
}
.table-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.table-card:hover::before { opacity: 1; }
.table-card h3 { font-size: 0.82rem; font-weight: 700; color: var(--primary); margin-bottom: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.table-card-meta { font-size: 0.72rem; color: var(--text-muted); }

/* ── Empty state ─────────────────────────────────────────────────────── */
.empty-state { text-align: center; padding: 70px 40px; color: var(--text-muted); }
.empty-state svg { margin-bottom: 20px; opacity: 0.7; }
.empty-state h3 { font-size: 1.2rem; font-weight: 700; color: #546e7a; margin-bottom: 8px; }
.empty-state p { font-size: 0.92rem; margin-bottom: 22px; color: var(--text-muted); }

/* ── Modal ───────────────────────────────────────────────────────────── */
.modal-overlay { position: fixed; inset: 0; background: rgba(10,14,40,0.55); backdrop-filter: blur(3px); z-index: 200; }
.modal {
    position: fixed; top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0.97);
    background: var(--surface); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); z-index: 300;
    width: 480px; max-width: calc(100vw - 32px); max-height: calc(100vh - 60px);
    /* The body scrolls, not the modal, so the scrollbar stays inside the rounded corners and the header stays put */
    display: flex; flex-direction: column; overflow: hidden;
    transition: transform 0.15s ease, opacity 0.15s ease;
    opacity: 0; pointer-events: none;
}
.modal.visible { transform: translate(-50%, -50%) scale(1); opacity: 1; pointer-events: all; }
.modal-header { display: flex; flex-shrink: 0; align-items: center; justify-content: space-between; padding: 20px 22px 16px; border-bottom: 1px solid var(--border); }
.modal-header h2 { font-size: 1.1rem; font-weight: 700; color: var(--primary); }
.modal-body { padding: 22px; overflow-y: auto; min-height: 0; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 22px; }

/* ── Quiz ────────────────────────────────────────────────────────────── */
.quiz-card {
    background: var(--surface); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); border: 1px solid var(--border);
    overflow: hidden;
}
.quiz-loading { padding: 60px 40px; text-align: center; color: var(--text-muted); }
.spinner {
    width: 40px; height: 40px; border: 3px solid #e3eaf5;
    border-top-color: var(--accent); border-radius: 50%;
    animation: spin 0.75s linear infinite; margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }
#quiz-emoji-pop {
    position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0);
    font-size: 6rem; pointer-events: none; z-index: 9999;
    animation: none;
}
@keyframes emoji-pop {
    0%   { transform: translate(-50%, -50%) scale(0);   opacity: 0; }
    25%  { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
    60%  { transform: translate(-50%, -50%) scale(1);   opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(0);   opacity: 0; }
}
.quiz-meta { padding: 16px 24px; background: #f7f9fc; border-bottom: 1px solid var(--border); display: flex; align-items: center; }
.quiz-table-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white; font-size: 0.8rem; font-weight: 700;
    padding: 4px 12px; border-radius: 20px; letter-spacing: 0.3px;
}
.quiz-body { padding: 28px 28px 20px; }
.quiz-instruction { font-size: 1.05rem; font-weight: 700; color: var(--primary); margin-bottom: 20px; }
.quiz-known-fields { display: flex; flex-direction: row; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.quiz-field { display: flex; flex-direction: column; gap: 4px; padding: 11px 16px; background: #f0f4f8; border-radius: var(--radius); border-top: 3px solid var(--accent); min-width: 120px; }
.quiz-field-label { font-size: 0.78rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.quiz-field-value { font-size: 0.95rem; font-weight: 600; color: var(--text); }
.quiz-field.quiz-field-blank { background: #fff8e1; border-top-color: #ffa726; border-style: dashed; }
.quiz-field.quiz-field-blank .quiz-field-value { color: #ffa726; letter-spacing: 2px; }
.quiz-answer-area { margin-top: 8px; }
.quiz-answer-label { display: block; font-size: 0.78rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; }
.quiz-input-row { display: flex; gap: 10px; }
.quiz-input {
    flex: 1; padding: 11px 14px; border: 2px solid var(--border);
    border-radius: var(--radius); font-size: 1rem; color: var(--text);
    outline: none; transition: border-color var(--transition), box-shadow var(--transition); background: #fff;
}
.quiz-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(66,165,245,0.18); }
.quiz-result {
    margin: 0 24px; padding: 14px 18px; border-radius: var(--radius);
    font-size: 0.95rem; font-weight: 600; display: flex; align-items: center; gap: 10px;
}
.quiz-result.correct { background: var(--success-bg); color: #2e7d32; border: 1.5px solid #a5d6a7; }
.quiz-result.incorrect { background: var(--error-bg); color: #c62828; border: 1.5px solid #ffcdd2; }
.quiz-result .result-icon { width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 13px; }
.quiz-result.correct .result-icon { background: #43a047; color: white; }
.quiz-result.incorrect .result-icon { background: var(--danger); color: white; }
.quiz-actions { padding: 18px 24px 22px; display: flex; gap: 10px; }
.quiz-no-tables { padding: 60px 40px; text-align: center; color: var(--text-muted); }
.quiz-no-tables svg { margin-bottom: 18px; opacity: 0.6; }
.quiz-no-tables h3 { font-size: 1.1rem; font-weight: 700; color: #546e7a; margin-bottom: 8px; }
.quiz-no-tables p { font-size: 0.9rem; margin-bottom: 20px; }
.add-row-card { border-top: 3px solid var(--accent); }

/* ── Quiz progress bar ───────────────────────────────────────────────── */
.quiz-progress {
    background: #f7f9fc; border-bottom: 1px solid var(--border);
    padding: 14px 24px; display: flex; align-items: center; gap: 20px;
}
.quiz-stat { display: flex; flex-direction: column; gap: 2px; min-width: 80px; }
.quiz-stat-label { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-muted); }
.quiz-stat-value { font-size: 1.1rem; font-weight: 700; color: var(--primary); }
.quiz-stat-value.correct { color: var(--success); }
.quiz-stat-value.incorrect { color: var(--danger); }
.quiz-progress-bar-wrap { flex: 1; height: 10px; background: #e3eaf5; border-radius: 10px; overflow: hidden; }
.quiz-progress-bar {
    height: 100%; width: 0%; border-radius: 10px;
    background: linear-gradient(90deg, var(--success), #66bb6a);
    transition: width 0.4s ease, background 0.4s ease;
}
.quiz-progress-pct { font-size: 0.95rem; font-weight: 700; color: var(--primary); min-width: 42px; text-align: right; }
.quiz-reset-btn {
    background: none; border: none; cursor: pointer; color: var(--text-muted);
    font-size: 0.8rem; display: flex; align-items: center; gap: 4px;
    padding: 4px 6px; border-radius: 4px; transition: all var(--transition);
}
.quiz-reset-btn:hover { color: var(--danger); background: #ffebee; }

/* ── Quiz table selector ─────────────────────────────────────────────── */
.quiz-layout { display: flex; gap: 24px; align-items: flex-start; }
.quiz-card-wrap { flex: 1; min-width: 0; }

/* ── Profile view ────────────────────────────────────────────────────── */
.profile-tables-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 10px; margin-bottom: 24px;
}
.profile-table-item {
    display: flex; align-items: center; gap: 12px;
    padding: 13px 16px; background: #f7f9fc;
    border: 1.5px solid var(--border); border-radius: var(--radius);
    cursor: pointer; transition: all var(--transition);
}
.profile-table-item:hover { background: #eef4fb; border-color: var(--accent); }
.profile-table-item input[type=checkbox] { width: 16px; height: 16px; accent-color: var(--accent); flex-shrink: 0; cursor: pointer; }
.profile-table-item label { cursor: pointer; font-size: 0.9rem; font-weight: 500; line-height: 1.3; }
.profile-table-item label small { display: block; color: var(--text-muted); font-size: 0.78rem; font-weight: 400; }

/* ── Progress view ───────────────────────────────────────────────────── */
.pbar-cell { display: flex; align-items: center; gap: 8px; }
.pbar-wrap  { flex: 1; height: 8px; background: #e3eaf5; border-radius: 8px; overflow: hidden; min-width: 60px; }
.pbar       { height: 100%; border-radius: 8px; transition: width 0.4s ease; }
.pbar-pct   { font-size: 0.85rem; font-weight: 600; color: var(--text); min-width: 36px; text-align: right; }

/* ── Role badge ──────────────────────────────────────────────────────── */
.role-badge {
    display: inline-block; padding: 3px 10px; border-radius: 20px;
    font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
}
.role-badge.admin  { background: rgba(66,165,245,0.15); color: var(--primary); border: 1px solid rgba(66,165,245,0.3); }
.role-badge.editor { background: rgba(156,39,176,0.1); color: #7b1fa2; border: 1px solid rgba(156,39,176,0.25); }
.role-badge.user   { background: #eef2f7; color: var(--text-muted); border: 1px solid var(--border); }

/* ── User actions ────────────────────────────────────────────────────── */
.user-actions { display: flex; gap: 6px; align-items: center; }

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; padding: 20px 16px 48px; }
    .quiz-input-row { flex-direction: column; }
    .welcome-grid { grid-template-columns: 1fr; }
    .section-toolbar { flex-direction: column; align-items: flex-start; }
    .quiz-layout { flex-direction: column; }
    .quiz-selector { width: 100%; }
    .codequiz-admin-grid { grid-template-columns: 1fr; }
}

/* ── Compile Quiz ────────────────────────────────────────────────────── */
.codequiz-code-block {
    background: #1e1e2e; color: #cdd6f4;
    border-radius: var(--radius); padding: 16px 20px;
    font-family: 'Cascadia Code','Fira Code','Consolas',monospace;
    font-size: 0.88rem; line-height: 1.7; white-space: pre; overflow-x: auto;
    margin-bottom: 18px; border: 1px solid rgba(255,255,255,0.08);
    font-variant-ligatures: none;
}
.codequiz-blank {
    background: rgba(250,189,47,0.25); color: #f9e2af;
    border-bottom: 2px solid #f9e2af; border-radius: 3px; padding: 0 4px;
}
.codequiz-options-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.codequiz-option-item {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 11px 15px; border: 1.5px solid var(--border); border-radius: var(--radius);
    cursor: pointer; transition: border-color var(--transition), background var(--transition);
    background: var(--surface);
}
.codequiz-option-item:hover { border-color: var(--accent); background: #f0f7ff; }
.codequiz-option-item.selected { border-color: var(--accent); background: #e8f4fd; }
.codequiz-option-item.opt-correct { border-color: var(--success) !important; background: var(--success-bg) !important; }
.codequiz-option-item.opt-wrong   { border-color: var(--danger)  !important; background: var(--error-bg)   !important; }
.codequiz-option-item.opt-missed  { border-color: var(--success) !important; background: #f1fdf2 !important; opacity: 0.85; }
.codequiz-choose-count { display: inline-block; margin-left: 8px; font-size: 0.75rem; font-weight: 700; padding: 2px 8px; border-radius: 10px; background: var(--accent); color: #fff; vertical-align: middle; }
.codequiz-option-checkbox { width: 17px; height: 17px; margin-top: 2px; accent-color: var(--accent); flex-shrink: 0; cursor: pointer; }
.codequiz-option-body { flex: 1; display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.codequiz-option-label {
    display: inline-flex; align-items: center; justify-content: center;
    width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0;
    background: #e8f0fe; color: var(--primary);
    font-size: 0.75rem; font-weight: 700; margin-top: 1px;
}
.codequiz-option-label.letter-hidden { visibility: hidden; }
.codequiz-option-text {
    font-family: 'Cascadia Code','Fira Code','Consolas',monospace;
    font-size: 0.85rem; color: var(--text); word-break: break-word;
    font-variant-ligatures: none;
}
.codequiz-option-badge {
    font-size: 0.75rem; font-weight: 600; padding: 2px 8px; border-radius: 20px;
    margin-left: auto; flex-shrink: 0; white-space: nowrap;
}
.codequiz-option-badge.compiles    { background: #e8f5e9; color: var(--success); }
.codequiz-option-badge.is-wrong  { background: #ffebee; color: var(--danger); }
.codequiz-option-badge.missed      { background: #e8f5e9; color: var(--success); }
.codequiz-instruction { font-size: 0.96rem; font-weight: 600; color: var(--text-muted); margin-bottom: 12px; }
.codequiz-option-radio { width: 17px; height: 17px; margin-top: 2px; accent-color: var(--accent); flex-shrink: 0; cursor: pointer; }
.codequiz-text-answer {
    font-family: 'Cascadia Code','Fira Code','Consolas',monospace;
    font-size: 0.88rem; resize: vertical; margin-bottom: 12px; width: 100%; box-sizing: border-box;
    font-variant-ligatures: none;
}
.codequiz-text-result-box {
    padding: 10px 14px; border-radius: var(--radius); font-family: 'Cascadia Code','Fira Code','Consolas',monospace;
    font-size: 0.85rem; margin-bottom: 10px; border: 1.5px solid var(--border); background: var(--surface);
    font-variant-ligatures: none;
}
.codequiz-text-result-box.correct-ans { border-color: var(--success); background: var(--success-bg); }
.codequiz-q-type-badge {
    display: inline-block; font-size: 0.72rem; font-weight: 600; padding: 2px 7px;
    border-radius: 20px; background: #e8f0fe; color: var(--accent); margin-right: 4px;
}

/* ── Compile Admin ───────────────────────────────────────────────────── */
.codequiz-admin-grid { display: flex; flex-direction: column; gap: 20px; }
#codequiz-sets-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.codequiz-set-item {
    display: flex; align-items: center; gap: 10px; padding: 11px 13px;
    border-radius: var(--radius); cursor: pointer; transition: background var(--transition), border-color var(--transition);
    border: 1.5px solid var(--border); background: var(--surface);
}
.codequiz-set-item:hover { background: #f0f4f8; border-color: #b0bec5; }
.codequiz-set-item.active { background: #e8f0fe; border-color: var(--accent); }
.codequiz-set-icon {
    width: 34px; height: 34px; border-radius: 8px; background: var(--primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.9rem; flex-shrink: 0;
}
.codequiz-set-info { flex: 1; min-width: 0; }
.codequiz-set-name  { font-weight: 600; font-size: 0.88rem; }
.codequiz-set-count { font-size: 0.78rem; color: var(--text-muted); }
.codequiz-q-item {
    padding: 13px 15px; border: 1px solid var(--border);
    border-radius: var(--radius); background: var(--surface); margin-bottom: 10px;
}
.codequiz-q-snippet {
    font-family: 'Cascadia Code','Fira Code','Consolas',monospace;
    font-size: 0.8rem; color: var(--text); background: #f7f9fc;
    border-radius: 4px; padding: 8px 10px; white-space: pre; overflow-x: auto;
    margin-bottom: 8px; max-height: 90px; font-variant-ligatures: none;
}
.codequiz-q-meta    { font-size: 0.78rem; color: var(--text-muted); }
.codequiz-q-tags    { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 7px; align-items: center; }
.cq-tag {
    display: inline-flex; align-items: center; gap: 3px;
    font-size: 0.72rem; font-weight: 600; padding: 2px 8px 2px 8px;
    border-radius: 10px; background: #e8f0fe; color: #1a237e; border: 1px solid #c5cae9;
    cursor: default;
}
.cq-tag-remove {
    background: none; border: none; cursor: pointer; padding: 0; margin-left: 2px;
    color: #5c6bc0; font-size: 0.8rem; line-height: 1; opacity: 0.7;
}
.cq-tag-remove:hover { opacity: 1; color: var(--danger); }
.cq-tag-add {
    display: inline-flex; align-items: center; gap: 3px; font-size: 0.72rem; font-weight: 600;
    padding: 2px 8px; border-radius: 10px; background: #f0f4f8; color: var(--text-muted);
    border: 1px dashed var(--border); cursor: pointer; transition: background var(--transition);
}
.cq-tag-add:hover { background: #e8f0fe; color: #1a237e; border-color: #c5cae9; }
.cq-tag-picker {
    position: absolute; z-index: 300; background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow-lg); min-width: 200px; max-width: 280px;
    padding: 6px 0;
}
.cq-tag-picker-item {
    padding: 6px 14px; font-size: 0.82rem; cursor: pointer; white-space: nowrap;
    overflow: hidden; text-overflow: ellipsis;
}
.cq-tag-picker-item:hover { background: #f0f4f8; }
.cq-tag-picker-divider { border-top: 1px solid var(--border); margin: 5px 0; }
.cq-tag-picker-input {
    padding: 5px 10px; font-size: 0.82rem; border: 1px solid var(--border);
    border-radius: 5px; width: calc(100% - 20px); margin: 4px 10px;
    outline: none;
}
.cq-tag-picker-input:focus { border-color: var(--accent); }
.codequiz-q-actions { display: flex; gap: 6px; margin-top: 10px; }
.option-row { display: flex; flex-direction: column; gap: 5px; margin-bottom: 10px; }
.option-row-main { display: flex; gap: 8px; align-items: center; }
.option-row-main .form-control { flex: 1; font-family: 'Cascadia Code','Fira Code','Consolas',monospace; font-size: 0.85rem; font-variant-ligatures: none; }
.option-compiles-label { display: flex; align-items: center; gap: 5px; font-size: 0.82rem; color: var(--text-muted); white-space: nowrap; }
.option-explanation-input { font-size: 0.8rem; color: var(--text-muted); }
.codequiz-option-explanation { font-size: 0.8rem; color: var(--text-muted); font-style: italic; margin-top: 4px; font-family: inherit; width: 100%; }
.codequiz-explanation-box {
    padding: 11px 15px; border: 1.5px solid var(--border); border-radius: var(--radius);
    background: var(--surface); font-size: 1rem; color: var(--text-muted); font-style: italic;
}
.codequiz-reference-box {
    margin-top: 10px; padding: 11px 15px; border: 1.5px solid var(--border); border-radius: var(--radius);
    background: var(--surface); font-size: 0.88rem; line-height: 1.5; color: var(--text);
}
.cq-ref-title { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); margin-bottom: 6px; }
.cq-ref-quote { margin: 0 0 8px; padding-left: 10px; border-left: 3px solid var(--border); font-style: italic; white-space: pre-line; }
.cq-ref-source { font-size: 0.8rem; color: var(--text-muted); overflow-wrap: anywhere; }
.cq-ask-question-btn { margin-top: 10px; }

/* ── Competency progress ───────────────────────────────────────────── */
.comp-framework { font-size: 0.9rem; font-weight: 600; color: var(--text-muted); margin: 0 0 8px; }
.comp-role { margin-bottom: 12px; }
.comp-role-summary { cursor: pointer; padding: 10px 14px; font-weight: 700; color: var(--primary); }
.comp-role-count { margin-left: 8px; font-weight: 400; font-size: 0.82rem; color: var(--text-muted); }
.comp-code { white-space: nowrap; font-size: 0.8rem; font-weight: 600; color: var(--primary); }
.comp-category { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }
.comp-untrained td { color: var(--text-muted); }
.topic-comp-codes { font-size: 0.75rem; line-height: 1.7; min-width: 230px; }

/* ── Sources modal ─────────────────────────────────────────────────── */
.sources-tools { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 12px; }
.sources-tools .form-control { max-width: 320px; }
.source-name { overflow-wrap: anywhere; }
.source-sets { white-space: normal; }
.source-set {
    display: inline-block; min-width: 1.6em; padding: 0 4px; margin: 1px 0; border-radius: 6px; text-align: center; cursor: help;
    font-size: 0.75rem; font-weight: 600; color: var(--primary); background: var(--surface); border: 1px solid var(--border);
}

/* ── Competency matrix modal ───────────────────────────────────────── */
.matrix-tools { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; flex-shrink: 0; padding: 10px 22px; border-bottom: 1px solid var(--border); }
.matrix-legend { font-size: 0.8rem; color: var(--text-muted); }
.matrix-scroll { flex: 1; overflow: auto; padding: 0; }
.matrix-table { border-collapse: separate; border-spacing: 0; font-size: 0.78rem; }
.matrix-table th, .matrix-table td { border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--surface); }
.matrix-table thead th { position: sticky; z-index: 2; }
.matrix-table thead tr:first-child th { top: 0; height: 30px; }
.matrix-table thead tr:nth-child(2) th { top: 30px; }
.matrix-corner { left: 0; z-index: 4 !important; text-align: left; vertical-align: bottom; padding: 6px 10px; }
.matrix-role { padding: 4px 6px; font-weight: 700; color: var(--primary); text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 1px; }
.matrix-code { padding: 6px 0; height: 64px; vertical-align: bottom; cursor: help; font-weight: 600; color: var(--primary); }
.matrix-code span { writing-mode: vertical-rl; transform: rotate(180deg); white-space: nowrap; }
.matrix-code.unused { color: var(--text-muted); font-weight: 400; }
.matrix-topic {
    position: sticky; left: 0; z-index: 1; text-align: left; font-weight: 400; padding: 3px 10px;
    min-width: 280px; max-width: 340px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.matrix-topic-count { float: right; margin-left: 8px; font-size: 0.72rem; color: var(--text-muted); }
.matrix-set-row .matrix-topic { font-weight: 700; color: var(--primary); padding-top: 8px; max-width: none; }
.matrix-cell { width: 22px; min-width: 22px; text-align: center; padding: 0; }
.matrix-table tbody tr:hover td, .matrix-table tbody tr:hover .matrix-topic { background: #eef1fb; }
.matrix-mark.topic { color: var(--primary); }
.matrix-mark.question { color: var(--accent); }
.matrix-table tfoot th, .matrix-table tfoot td { position: sticky; bottom: 0; z-index: 2; font-weight: 600; }
.matrix-table tfoot .matrix-topic { z-index: 3; }
.matrix-total { text-align: center; font-size: 0.72rem; }
.topic-comp-code {
    display: inline-block; padding: 0 5px; border-radius: 6px; cursor: help; white-space: nowrap;
    background: var(--surface); border: 1px solid var(--border); color: var(--primary); font-weight: 600;
}
.cq-ask-btn {
    margin-left: auto; align-self: flex-start; flex-shrink: 0;
    padding: 2px 8px; font-size: 0.75rem; border-radius: 10px; cursor: pointer;
    border: 1px solid var(--border); background: var(--surface); color: var(--text-muted);
}
.cq-ask-btn:hover { border-color: var(--accent); color: var(--accent); }
.cq-ai-box {
    margin-top: 10px; padding: 11px 15px; border: 1.5px solid #c5cae9; border-radius: var(--radius);
    background: #f5f7ff; font-size: 0.92rem; line-height: 1.5; color: var(--text);
}
.cq-ai-title { font-weight: 700; font-size: 0.82rem; color: #1a237e; margin-bottom: 6px; }
.cq-ai-box p { margin: 0 0 8px; }
.cq-ai-box ul { margin: 0 0 8px; padding-left: 20px; }
.cq-ai-box code { font-family: 'Cascadia Code','Fira Code','Consolas',monospace; font-size: 0.85em; background: #e8eaf6; padding: 0 3px; border-radius: 3px; }
.cq-ai-box pre { background: #263238; color: #eceff1; padding: 8px 10px; border-radius: 6px; overflow-x: auto; margin: 0 0 8px; }
.cq-ai-box pre code { background: none; color: inherit; padding: 0; }
.cq-ai-loading { color: var(--text-muted); font-style: italic; }
.cq-ai-error { color: var(--danger); }
.cq-ai-limit {
    padding: 10px 12px; border-radius: 6px; font-weight: 600;
    background: var(--error-bg); color: var(--danger); border: 1.5px solid var(--danger);
}
.cq-ai-usage { margin-top: 6px; font-size: 0.75rem; color: var(--text-muted); text-align: right; }

/* ── Sets & Topics Overview modal ──────────────────────────────────── */
.overview-set-block { margin-bottom: 22px; }
.overview-set-header {
    display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px;
    padding-bottom: 6px; border-bottom: 1px solid var(--border);
}
.overview-set-name  { font-weight: 700; font-size: 0.95rem; color: var(--primary); }
.overview-set-total { font-size: 0.78rem; color: var(--text-muted); }
.overview-topics-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px;
}
.overview-topic-chip {
    display: flex; align-items: center; gap: 6px;
    padding: 3px 10px; border-radius: 10px; font-size: 0.78rem;
    background: #e8f0fe; color: #1a237e; border: 1px solid #c5cae9;
    overflow: hidden;
}
.overview-topic-count {
    font-weight: 700; font-size: 0.78rem;
    background: #1a237e; color: #fff;
    border-radius: 8px; padding: 0 6px; min-width: 18px; text-align: center;
}
.overview-topic-easy {
    font-weight: 700; font-size: 0.72rem;
    background: #2e7d32; color: #fff;
    border-radius: 8px; padding: 0 5px; min-width: 16px; text-align: center;
}
.overview-topic-med {
    font-weight: 700; font-size: 0.72rem;
    background: #e65100; color: #fff;
    border-radius: 8px; padding: 0 5px; min-width: 16px; text-align: center;
}
.overview-topic-hard {
    font-weight: 700; font-size: 0.72rem;
    background: #b71c1c; color: #fff;
    border-radius: 8px; padding: 0 5px; min-width: 16px; text-align: center;
}
.overview-untagged {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 3px 10px; border-radius: 10px; font-size: 0.78rem;
    background: #fff3e0; color: #e65100; border: 1px solid #ffcc80;
}
.codequiz-answer-layout {
    display: flex; gap: 20px; align-items: flex-start;
}
.codequiz-options-col { flex: 0 0 55%; min-width: 0; }
.codequiz-feedback-col { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 10px; }
@media (max-width: 700px) {
    .codequiz-answer-layout { flex-direction: column; }
    .codequiz-options-col { flex: none; width: 100%; }
}

/* Question Management: topics of a set */
.cq-topic-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 8px; }
.cq-topic-row  { display: flex; align-items: center; gap: 10px; padding: 6px 10px; border: 1px solid var(--border); border-radius: var(--radius); }
.cq-topic-name { font-weight: 600; font-size: 0.9rem; }