/* ===== LAYOUT PANEL ===== */
.panel-wrapper {
    display: flex;
    gap: 0;
    min-height: calc(100vh - 200px);
    margin: 0;
}

.panel-sidebar {
    width: 220px;
    flex-shrink: 0;
    background: linear-gradient(to bottom, #1a3d7c 0%, #0f265a 100%);
    border-right: 2px solid #0a1a40;
}

.panel-sidebar-header {
    background: linear-gradient(to bottom, #0f265a 0%, #081840 100%);
    color: #aaccff;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 12px 14px;
    border-bottom: 1px solid #0a1a40;
}

.panel-nav {
    display: flex;
    flex-direction: column;
    padding: 6px 0;
}

.panel-nav-item {
    display: block;
    padding: 9px 14px;
    color: #aaccff;
    font-size: 0.82rem;
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    font-weight: normal;
}

.panel-nav-item:hover {
    background-color: rgba(255,255,255,0.08);
    color: #ffffff;
    text-decoration: none;
    border-left-color: #5588cc;
}

.panel-nav-item.active {
    background-color: rgba(255,255,255,0.12);
    color: #ffffff;
    border-left-color: #88aaee;
    font-weight: bold;
}

.panel-nav-separator {
    height: 1px;
    background-color: rgba(255,255,255,0.1);
    margin: 8px 0;
}

.panel-main {
    flex: 1;
    padding: 16px;
    background-color: #edf0f8;
    min-width: 0;
}

/* ===== PAGE HEADER ===== */
.panel-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid #c0cce0;
}

.panel-page-header h2 {
    margin: 0;
    padding: 0;
    font-size: 1.3rem;
    color: #1a3d7c;
    border: none;
    background: none;
}

/* ===== SECTIONS ===== */
.panel-section {
    background: #ffffff;
    border: 1px solid #c0cce0;
    border-radius: 5px;
    margin-bottom: 16px;
    overflow: hidden;
}

.panel-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    background: linear-gradient(to bottom, #eef2fa 0%, #dde4f0 100%);
    border-bottom: 1px solid #c0cce0;
}

.panel-section-header h3 {
    margin: 0;
    padding: 0;
    font-size: 0.95rem;
    color: #1a3d7c;
    border: none;
    background: none;
}

/* ===== STATS DASHBOARD ===== */
.panel-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.panel-stat-card {
    background: #fff;
    border: 1px solid #c0cce0;
    border-radius: 5px;
    padding: 14px;
    display: flex;
    gap: 12px;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.panel-stat-card.panel-stat-warning {
    border-left: 4px solid #cc7700;
    background: #fffaf0;
}

.panel-stat-icon { font-size: 1.8rem; }

.panel-stat-value {
    font-size: 1.6rem;
    font-weight: bold;
    color: #1a3d7c;
    line-height: 1;
}

.panel-stat-label {
    font-size: 0.75rem;
    color: #666;
    margin-top: 2px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.panel-stat-sub {
    font-size: 0.72rem;
    color: #888;
    margin-top: 3px;
}

.panel-stat-sub a {
    color: #cc7700;
    font-weight: bold;
}

/* ===== TABLES ===== */
.panel-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

.panel-table thead tr {
    background: linear-gradient(to bottom, #eef2fa 0%, #dde4f0 100%);
}

.panel-table th {
    padding: 8px 10px;
    text-align: left;
    font-weight: bold;
    color: #1a3d7c;
    border-bottom: 2px solid #c0cce0;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.panel-table td {
    padding: 7px 10px;
    border-bottom: 1px solid #edf0f8;
    vertical-align: middle;
    color: #2c2c2c;
}

.panel-table tbody tr:hover td {
    background-color: #f5f8ff;
}

.panel-table tbody tr:last-child td {
    border-bottom: none;
}

.panel-row-muted td {
    opacity: 0.6;
}

.panel-empty {
    text-align: center;
    color: #888;
    padding: 20px !important;
    font-style: italic;
}

.panel-empty-state {
    text-align: center;
    color: #888;
    padding: 30px;
    font-style: italic;
    background: #fff;
    border: 1px solid #c0cce0;
    border-radius: 5px;
}

.panel-actions {
    white-space: nowrap;
}

/* ===== BADGES ===== */
.panel-badge {
    display: inline-block;
    padding: 2px 7px;
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: bold;
    text-transform: uppercase;
}

.panel-badge-success { background: #d4edda; color: #1a5c1a; border: 1px solid #a3d4a3; }
.panel-badge-danger  { background: #fde8e8; color: #8b1a1a; border: 1px solid #f0aaaa; }
.panel-badge-warning { background: #fff3cd; color: #7a4f00; border: 1px solid #f0cc88; }
.panel-badge-info    { background: #dde8f8; color: #1a3d7c; border: 1px solid #aaccee; }

/* ===== FORMS ===== */
.panel-form {
    padding: 16px;
}

.panel-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.panel-form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.panel-form-full {
    grid-column: 1 / -1;
}

.panel-form-group label {
    font-size: 0.78rem;
    font-weight: bold;
    color: #444;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.panel-form-group input,
.panel-form-group select,
.panel-form-group textarea {
    padding: 6px 8px;
    border: 1px solid #a0aabb;
    border-radius: 3px;
    font-size: 0.85rem;
    font-family: Verdana, sans-serif;
    color: #2c2c2c;
    background: #fff;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.08);
    transition: border-color 0.15s, box-shadow 0.15s;
    width: 100%;
    box-sizing: border-box;
    margin: 0;
}

.panel-form-group input:focus,
.panel-form-group select:focus,
.panel-form-group textarea:focus {
    border-color: #2a5caa;
    outline: none;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.08), 0 0 4px rgba(42,92,170,0.25);
}

.panel-form-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 12px 0;
}

.panel-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    color: #2c2c2c;
    font-weight: normal;
}

.panel-checkbox input { width: auto; margin: 0; }

.panel-checkbox-large { font-size: 1rem; font-weight: bold; }

.panel-checkboxes-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    background: #f5f7fa;
    border: 1px solid #c0cce0;
    border-radius: 3px;
}

.panel-form-actions {
    display: flex;
    gap: 8px;
    padding-top: 12px;
    margin-top: 4px;
    border-top: 1px solid #edf0f8;
}

.panel-inline-form {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    border-bottom: 1px solid #edf0f8;
    align-items: center;
}

.panel-inline-form input {
    flex: 1;
    padding: 6px 8px;
    border: 1px solid #a0aabb;
    border-radius: 3px;
    font-size: 0.85rem;
    margin: 0;
    width: auto;
    height: auto;
}

/* ===== SEARCH ===== */
.panel-search-form {
    display: flex;
    gap: 6px;
    align-items: center;
}

.panel-search-form input {
    padding: 5px 10px;
    border: 1px solid #a0aabb;
    border-radius: 3px;
    font-size: 0.85rem;
    width: 220px;
    height: auto;
    margin: 0;
}

/* ===== QUIZ DETAIL ===== */
.panel-quiz-question {
    border: 1px solid #c0cce0;
    border-radius: 4px;
    margin: 8px 16px;
    overflow: hidden;
}

.panel-quiz-q-header {
    background: linear-gradient(to bottom, #eef2fa 0%, #dde4f0 100%);
    padding: 8px 12px;
    font-weight: bold;
    color: #1a3d7c;
    font-size: 0.85rem;
    border-bottom: 1px solid #c0cce0;
}

.panel-quiz-choices {
    list-style: none;
    padding: 8px 16px;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.panel-quiz-choices li {
    font-size: 0.82rem;
    padding: 4px 8px;
    border-radius: 3px;
    color: #2c2c2c;
    border: none;
    margin: 0;
}

.panel-choice-correct {
    background-color: #d4edda;
    color: #1a5c1a !important;
    font-weight: bold;
}

/* ===== MISC ===== */
.panel-text-danger { color: #cc0000; }