:root {
    --bg-color: #FBFBFA;
    --card-bg: #FFFFFF;
    --surface-tint: #F7F6F3;
    --surface-raised: #FFFFFF;
    --card-border: rgba(0, 0, 0, 0.10);
    --border-subtle: rgba(0, 0, 0, 0.06);
    --text-primary: #2F3437;
    --text-secondary: #6B6761;
    --text-tertiary: #A39E98;
    --accent-color: #0075DE;
    --accent-hover: #005BAB;
    --success-color: #2A9D99;
    --danger-color: #D44C47;
    --input-bg: #FFFFFF;
    --tag-blue-bg: #F2F9FF;
    --tag-blue-text: #005BAB;
    --tag-green-bg: #EDF3EC;
    --tag-green-text: #346538;
    --tag-rose-bg: #FDEBEC;
    --tag-rose-text: #9F2F2D;
    --tag-yellow-bg: #FBF3DB;
    --tag-yellow-text: #956400;
    --overlay-bg: rgba(47, 52, 55, 0.14);
    --shadow-card: 0 4px 18px rgba(0, 0, 0, 0.04), 0 2px 8px rgba(0, 0, 0, 0.03);
    --shadow-deep: 0 1px 3px rgba(0, 0, 0, 0.01), 0 3px 7px rgba(0, 0, 0, 0.02), 0 7px 15px rgba(0, 0, 0, 0.02), 0 14px 28px rgba(0, 0, 0, 0.04), 0 23px 52px rgba(0, 0, 0, 0.05);
    --focus-ring: 0 0 0 3px rgba(0, 117, 222, 0.14);
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", sans-serif;
}

body {
    background: var(--bg-color);
    color: var(--text-primary);
    min-height: 100dvh;
    overflow-x: hidden;
    text-align: left;
}

.glass-effect {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-card);
}

.card {
    border-radius: 12px;
    padding: var(--space-6);
    margin: var(--space-4) 0;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    text-align: left;
}

.card:hover {
    transform: translateY(-2px);
    border-color: rgba(0, 0, 0, 0.16);
}

h1, h2, h3 { margin-bottom: 1rem; font-weight: 700; text-align: left; letter-spacing: -0.01em; }
h2 { font-size: 1.625rem; line-height: 1.25; }
h3 { font-size: 1.25rem; line-height: 1.35; }
a { color: var(--accent-color); text-decoration: none; cursor: pointer;}
a:hover { text-decoration: underline; }

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--space-10) var(--space-8);
    text-align: left;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) var(--space-8);
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(251, 251, 250, 0.86);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-width: 0 0 1px 0;
    box-shadow: none;
}
.nav-brand { font-size: 1.5rem; font-weight: 700; color: var(--text-primary);}
.nav-brand-dit { color: #E21D2B; }
.nav-links button { margin-left: 1rem; }

input, select, textarea {
    width: 100%;
    padding: var(--space-3);
    margin: var(--space-2) 0;
    border-radius: 6px;
    border: 1px solid var(--card-border);
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
}
input::placeholder, textarea::placeholder { color: var(--text-tertiary); }
input:focus, select:focus, textarea:focus { border-color: var(--accent-color); box-shadow: var(--focus-ring); }

button {
    padding: var(--space-3) var(--space-5);
    border: 1px solid transparent;
    border-radius: 6px;
    background-color: var(--accent-color);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s, color 0.2s, transform 0.1s, box-shadow 0.2s;
}
button:hover { background-color: var(--accent-hover); }
button:active { transform: scale(0.98); }
button:focus-visible { outline: none; box-shadow: var(--focus-ring); }
button.secondary { background-color: var(--surface-tint); border: 1px solid var(--card-border); color: var(--text-primary); }
button.secondary:hover { background-color: #EFEDE8; border-color: rgba(0, 0, 0, 0.16); }
button.danger { 
    background-color: var(--danger-color);
    color: white;
}
button.danger:hover { 
    background-color: #B93D39;
}

.btn-icon-only {
    padding: 6px !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    line-height: 1;
}

.exam-list-card {
    margin: var(--space-8) 0 !important;
    padding: var(--space-8) !important;
}

.exam-list-card table {
    margin-top: 1rem !important;
}

#admin-exam-list {
    max-width: 100%;
    overflow-x: auto;
}

#admin-exam-list .table {
    min-width: 640px;
}

.form-group { margin-bottom: var(--space-4); }
.form-group label { display: block; font-size: 0.9rem; color: var(--text-secondary); margin-bottom: var(--space-2); font-weight: 600;}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--space-5); }

.fade-in { animation: fadeIn 0.45s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.text-center { text-align: center; }
.mt-2 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-8); }
.flex-between { display: flex; justify-content: space-between; align-items: center;}
.table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.table th, .table td { padding: 12px; border-bottom: 1px solid var(--border-subtle); text-align: left; position: relative; }
.table th { color: var(--text-secondary); font-weight: 600; cursor: default; }
.table tbody tr:hover { background: var(--surface-tint); }

.text-link-button {
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--accent-color);
    font: inherit;
    font-weight: 750;
    text-align: left;
    cursor: pointer;
}

.text-link-button:hover {
    text-decoration: underline;
}

.compact-action {
    padding: 4px 8px;
    font-size: 0.75rem;
}

.muted-text {
    margin-top: var(--space-1);
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 650;
}

.resizer {
    position: absolute;
    right: 0;
    top: 15%;
    height: 70%;
    width: 6px;
    cursor: col-resize;
    user-select: none;
    background: transparent;
    transition: background 0.2s;
    border-radius: 3px;
    z-index: 10;
    touch-action: none;
}
.resizer:hover, .resizer.resizing {
    background: var(--accent-color);
}

.question-bank-table th[data-sort-key] {
    cursor: pointer;
}

.question-bank-table .sort-header-text {
    pointer-events: none;
}

.badge {
    padding: 4px 8px; border-radius: 9999px; font-size: 0.8rem; font-weight: 600; display: inline-block;
}
.badge.admin { background: #F2F9FF; color: var(--accent-hover); }
.badge.teacher { background: #EEF7EF; color: #2F6F3E; }
.badge.student { background: #EDF3EC; color: #346538; }
.pre-line { white-space: pre-wrap; word-break: break-all; text-align: left; }

.nav-btn-group {
    display: flex;
    gap: 5px;
    background: var(--surface-tint);
    padding: 4px;
    border-radius: 8px;
}

.nav-btn-group button {
    padding: 6px 12px;
    font-size: 0.85rem;
}

button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    filter: grayscale(1);
}

.subject-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.subject-panel-header h3 {
    margin: 0;
}

.subject-create-form {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.subject-create-form input {
    max-width: 320px;
}

.subject-create-form button {
    min-width: 112px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    line-height: 1.2;
}

.login-container {
    max-width: 760px;
    margin-top: 4rem;
}

.login-card {
    max-width: 560px;
    margin: 0 auto;
}

.auth-tab-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-bottom: var(--space-5);
    border-bottom: 1px solid var(--card-border);
}

.auth-tab {
    border: 0;
    border-bottom: 3px solid transparent;
    border-radius: 0;
    background: transparent;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
}

.auth-tab:hover,
.auth-tab.is-active {
    border-bottom-color: var(--accent-color);
    background: var(--surface-tint);
    color: var(--accent-color);
}

.auth-secondary-action {
    width: 100%;
    margin-top: var(--space-3);
}

.auth-secondary-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
    margin-top: var(--space-3);
}

.auth-helper-text {
    margin: -4px 0 var(--space-5);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.teacher-signup-panel {
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--border-subtle);
}

.teacher-signup-panel h3 {
    margin-bottom: var(--space-4);
    font-size: 1rem;
    line-height: 1.35;
}

.teacher-signup-panel .secondary {
    width: 100%;
}

.teacher-signup-panel small {
    display: block;
    margin-top: var(--space-3);
    color: var(--text-secondary);
    line-height: 1.45;
}

.dashboard-context {
    margin-top: var(--space-1);
    color: var(--text-secondary);
    font-weight: 700;
}

.subject-switcher {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.subject-transfer-panel {
    display: grid;
    grid-template-columns: auto minmax(180px, 1fr) minmax(220px, 0.9fr) auto;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-3);
    padding: var(--space-3);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.72);
}

.subject-transfer-summary {
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 700;
    white-space: nowrap;
}

.subject-transfer-helper {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 600;
    min-width: 0;
}

.subject-transfer-target {
    min-height: 38px;
    padding: 8px 10px;
    font-size: 0.9rem;
}

.subject-transfer-button {
    min-height: 38px;
    padding: 8px 12px;
    white-space: nowrap;
}

.admin-setup-card {
    padding: var(--space-8);
}

.admin-setup-grid {
    display: grid;
    grid-template-columns: minmax(380px, 1.12fr) minmax(360px, 1fr);
    gap: var(--space-8);
    align-items: start;
}

.admin-setup-panel {
    min-width: 0;
}

.subject-setup-panel {
    position: relative;
    z-index: 0;
}

.subject-setup-panel::before {
    content: "";
    position: absolute;
    inset: -12px -14px;
    z-index: -1;
    border: 1px solid rgba(0, 117, 222, 0.18);
    border-radius: 10px;
    background: linear-gradient(180deg, #F8FCFF 0%, #FFFFFF 100%);
}

.admin-setup-panel + .admin-setup-panel {
    border-left: 1px solid var(--border-subtle);
    padding-left: var(--space-8);
}

.admin-setup-panel > h3,
.admin-setup-panel > h4:first-child {
    margin-bottom: var(--space-5);
    font-size: 1.125rem;
    line-height: 1.35;
    letter-spacing: 0;
}

.subject-panel-header h3 {
    font-size: 1.125rem;
    line-height: 1.35;
    letter-spacing: 0;
    color: var(--accent-hover);
    font-weight: 850;
}

.admin-setup-panel h4 {
    margin-bottom: var(--space-4);
    font-size: 0.96rem;
    line-height: 1.35;
}

.admin-setup-panel:not(.subject-setup-panel) > h3,
.admin-setup-panel:not(.subject-setup-panel) > h4:first-child {
    color: var(--text-primary);
    font-weight: 750;
}

.admin-setup-panel:not(.subject-setup-panel) button {
    width: 100%;
}

.active-teacher-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin: var(--space-4) 0;
    padding: var(--space-4) var(--space-5);
    border: 1px solid rgba(0, 117, 222, 0.22);
    border-radius: 8px;
    background: rgba(0, 117, 222, 0.06);
}

.active-teacher-banner strong,
.active-teacher-banner span {
    display: block;
}

.active-teacher-banner span {
    margin-top: 2px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.admin-member-card {
    padding: var(--space-6);
}

.admin-member-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.8fr);
    gap: var(--space-6);
}

.admin-member-panel h4 {
    margin: 0 0 var(--space-3);
    font-size: 1rem;
}

.admin-compact-table-wrap {
    overflow-x: auto;
}

.admin-compact-table th,
.admin-compact-table td {
    padding: 10px 12px;
    vertical-align: middle;
}

.admin-compact-table small {
    display: block;
    color: var(--text-secondary);
}

.admin-member-department {
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
}

.admin-action-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.compact-link-action {
    border: 0;
    background: transparent;
    color: var(--accent-color);
    padding: 0;
    font-size: 0.78rem;
    font-weight: 700;
}

.compact-link-action:hover {
    background: transparent;
    text-decoration: underline;
}

.subject-setup-panel .subject-create-form input {
    max-width: none;
}

.import-setup-panel h3 {
    padding-bottom: 0;
    border-bottom: 0;
}

.manual-import-panel {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid var(--border-subtle);
}

.manual-import-panel h4 {
    margin-bottom: var(--space-4);
    font-size: 1rem;
    line-height: 1.35;
}

.manual-import-panel button {
    width: 100%;
}

.question-backup-panel {
    margin-bottom: 0;
}

.question-backup-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: var(--space-3);
}

.question-backup-controls .form-group {
    margin-bottom: 0;
}

.question-backup-controls button {
    width: auto;
    min-width: 132px;
}

.ai-pdf-helper,
.ai-pdf-mode-note,
.ai-count-helper {
    display: block;
    margin-top: var(--space-2);
    color: var(--text-secondary);
    font-size: 0.86rem;
    line-height: 1.45;
}

.ai-pdf-mode-note {
    color: var(--success-color);
    font-weight: 750;
}

.ai-pdf-ocr-warning {
    display: block;
    margin-top: var(--space-2);
    color: var(--danger-color);
    font-size: 0.86rem;
    font-weight: 750;
    line-height: 1.45;
}

.ai-generation-status {
    min-height: 1.3rem;
    margin-top: var(--space-3);
    color: var(--success-color);
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1.45;
}

.ai-generation-status.is-error {
    color: var(--danger-color);
}

.ai-category-condition-fields[hidden],
.ai-pdf-mode-note[hidden] {
    display: none;
}

.ai-count-field input {
    max-width: 220px;
}

.bulk-import-card {
    padding: var(--space-6) var(--space-8);
}

.bulk-import-header h3 {
    margin-bottom: var(--space-4);
}

.bulk-import-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-5);
}

.bulk-import-panel {
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: var(--space-5);
    background: var(--surface-raised);
}

.bulk-import-panel h4 {
    margin-bottom: var(--space-4);
    font-size: 1rem;
    line-height: 1.35;
}

.bulk-import-panel button {
    width: 100%;
}

.bulk-import-status {
    min-height: 1.25rem;
    margin-top: var(--space-4);
    color: var(--success-color);
    white-space: pre-line;
    font-weight: 600;
}

.bulk-import-status.is-error {
    color: var(--danger-color);
}

.department-summary-section {
    padding: var(--space-6);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    background: var(--card-bg);
    box-shadow: var(--shadow-sm);
}

.section-title-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.section-title-row h3 {
    margin: 0;
    font-size: 1.125rem;
    line-height: 1.35;
}

.section-title-row small {
    color: var(--text-secondary);
    font-weight: 700;
}

.admin-results-title-row {
    align-items: flex-end;
}

.department-summary-heading {
    align-items: flex-start;
}

.department-summary-total {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-secondary);
    font-weight: 700;
}

.department-summary-total small {
    color: var(--text-secondary);
}

.department-summary-total span {
    display: inline-flex;
    align-items: baseline;
    gap: 3px;
    min-height: 28px;
    padding: 4px 8px;
    border-radius: 8px;
    background: var(--surface-tint);
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.2;
}

.department-summary-total strong {
    color: var(--text-primary);
    font-size: 0.95rem;
    font-variant-numeric: tabular-nums;
}

.department-filter-control {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.department-filter-control label {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
}

.department-filter-control select {
    min-width: 180px;
    height: 42px;
    padding: 0 var(--space-3);
}

.department-summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
}

.department-summary-card {
    min-width: 0;
    padding: var(--space-5);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface-raised);
}

.department-summary-title {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-3);
}

.department-summary-title h3 {
    margin: 0;
    font-size: 1rem;
    line-height: 1.35;
}

.department-summary-title p {
    margin: var(--space-1) 0 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 700;
}

.department-stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
    margin: var(--space-4) 0;
}

.department-stat-grid span {
    padding: var(--space-3);
    border-radius: 8px;
    background: #F7F7F5;
}

.department-stat-grid strong,
.department-stat-grid small {
    display: block;
}

.department-stat-grid strong {
    font-size: 1.25rem;
    line-height: 1.2;
}

.department-stat-grid small {
    margin-top: 2px;
    color: var(--text-secondary);
    font-weight: 700;
}

.department-subject-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.department-subject-chip {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
    gap: var(--space-1);
    padding: 5px 9px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: #F2F9FF;
    color: var(--accent-hover);
    font-size: 0.85rem;
    font-weight: 800;
}

.department-subject-backup-chip {
    cursor: pointer;
    user-select: none;
}

.department-subject-backup-chip input {
    width: 15px;
    height: 15px;
    margin: 0;
    accent-color: var(--accent-color);
}

.department-subject-backup-chip:has(input:checked) {
    border-color: rgba(0, 117, 222, 0.35);
    box-shadow: 0 0 0 3px rgba(0, 117, 222, 0.08);
}

.department-backup-button {
    min-height: 32px;
    padding: 6px 10px;
    white-space: nowrap;
}

.department-exam-list {
    display: grid;
    gap: var(--space-2);
}

.department-exam-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2px var(--space-3);
    padding-top: var(--space-2);
    border-top: 1px solid var(--border-subtle);
    font-size: 0.88rem;
}

.department-exam-title {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 800;
}

.department-exam-row small {
    grid-column: 1 / -1;
    color: var(--text-secondary);
}

.department-exam-meter {
    grid-column: 1 / -1;
    height: 6px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--surface-tint);
}

.department-exam-meter span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--success-color), var(--accent-color));
}

.subject-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    min-height: 40px;
    padding: 8px 12px;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    background: var(--surface-tint);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 650;
}

.subject-filter-chip {
    cursor: pointer;
    user-select: none;
    transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.subject-filter-chip:hover {
    background: #F2F9FF;
    border-color: rgba(0, 117, 222, 0.24);
    color: var(--accent-hover);
}

.subject-filter-chip:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.subject-chip-main {
    padding: 0;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: inherit;
    font: inherit;
}

.subject-chip-main:hover {
    background: transparent;
    color: inherit;
}

.subject-chip-main:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.subject-chip-label {
    cursor: inherit;
}

.subject-transfer-checkbox {
    width: 17px;
    height: 17px;
    margin: 0;
    flex: 0 0 auto;
    accent-color: var(--accent-color);
    cursor: pointer;
}

.subject-chip.primary {
    background: #F2F9FF;
    border-color: rgba(0, 117, 222, 0.22);
    color: var(--accent-hover);
}

.subject-chip.active {
    border-color: rgba(0, 117, 222, 0.34);
    box-shadow: inset 0 0 0 1px rgba(0, 117, 222, 0.12);
}

.subject-delete {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    padding: 0;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: var(--danger-color);
}

.subject-delete:hover {
    background: rgba(212, 76, 71, 0.08);
}

.all-subject-chip {
    background: var(--card-bg);
}

.panel-accent {
    border-color: rgba(0, 117, 222, 0.28);
    background: #FFFFFF;
}

.empty-note {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.question-selection-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface-tint);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
}

.question-selection-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.question-selection-actions button {
    padding: 7px 12px;
    font-size: 0.86rem;
}

.dashboard-exam-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6);
    align-items: start;
    margin: var(--space-8) 0;
}

.dashboard-exam-card {
    height: 100%;
    margin: 0;
}

.dashboard-exam-card h3 {
    margin-bottom: var(--space-4);
}

.ai-exam-card {
    border-color: var(--border-subtle);
}

.ai-provider-grid {
    margin-top: var(--space-2);
}

.ai-model-field {
    margin-top: var(--space-2);
}

.ai-config-status {
    display: inline-block;
    margin-top: var(--space-2);
    font-size: 0.82rem;
    font-weight: 700;
}

.ai-config-status.is-ready {
    color: var(--success-color);
}

.ai-config-status.is-missing {
    color: var(--danger-color);
}

.ai-add-condition-button {
    width: 100%;
    margin: var(--space-2) 0 var(--space-3);
}

.condition-list {
    min-height: 50px;
    margin: var(--space-2) 0 var(--space-4);
    padding: var(--space-3);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface-tint);
}

.condition-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 650;
}

.condition-list-item:last-child {
    border-bottom: 0;
}

.text-danger-button {
    min-height: 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--danger-color);
    font-size: 0.84rem;
    font-weight: 700;
}

.text-danger-button:hover {
    background: transparent;
    color: #B8322F;
}

.ai-preview-drawer {
    width: min(1040px, 100vw);
}

.drawer-kicker {
    color: var(--text-secondary);
    font-size: 0.84rem;
    font-weight: 700;
}

.drawer-title {
    margin: var(--space-1) 0;
    font-size: 1.55rem;
}

.drawer-subtitle {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 650;
}

.ai-preview-note {
    margin: 0 0 var(--space-4);
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 600;
}

.ai-preview-list {
    display: grid;
    gap: var(--space-4);
}

.ai-preview-card {
    padding: var(--space-4);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--card-bg);
    box-shadow: var(--shadow-soft);
}

.ai-preview-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    color: var(--text-secondary);
}

.ai-preview-option-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2) var(--space-3);
}

.ai-preview-option-grid .exam-option-row input {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ai-preview-option-grid .exam-option-row.is-answer input {
    border-color: var(--accent-color);
    background: #F8FCFF;
    box-shadow: 0 0 0 3px rgba(0, 117, 222, 0.12);
}

.ai-preview-option-grid .form-group {
    grid-column: 1 / -1;
}

.ai-preview-category-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 0;
}

.ai-preview-actions {
    border-top: 1px solid var(--border-subtle);
    background: rgba(251, 251, 250, 0.96);
}

.ai-preview-actions button {
    flex: 1;
}

.question-bank-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.question-bank-header h3 {
    margin-bottom: 0;
}

.question-bank-header button {
    flex: 0 0 auto;
}

.question-filter-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(172px, max-content));
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.question-filter-row select:not(.category-select-native) {
    max-width: 100%;
    min-height: 40px;
    padding: 8px 10px;
    font-size: 0.9rem;
    font-weight: 650;
}

.question-filter-row .category-select,
.exam-list-card .question-filter-row .category-select {
    width: auto;
    min-width: 172px;
}

.question-filter-row .category-select-trigger {
    min-height: 40px;
    padding: 8px 10px;
    font-size: 0.9rem;
    font-weight: 650;
}

.question-filter-row .category-select-menu {
    width: max(100%, 240px);
    max-height: 300px;
}

.question-bank-table {
    min-width: 1220px;
    table-layout: fixed;
    margin-top: var(--space-2);
}

.question-bank-table th,
.question-bank-table td {
    padding: 9px 12px;
    vertical-align: middle;
}

.question-bank-table th {
    font-size: 0.88rem;
    white-space: nowrap;
}

.question-bank-table tbody tr {
    transition: background-color 0.16s ease;
}

.question-bank-table tbody tr.checked-question-row {
    background: #FAFCFE;
}

.question-bank-table tbody tr.selected-question-row,
.question-bank-table tbody tr.selected-question-row:hover {
    background: #F2F9FF;
    box-shadow: inset 3px 0 0 var(--accent-color);
}

.question-bank-table tbody tr.selected-question-row .question-title {
    color: var(--accent-hover);
}

.question-bank-table .selection-col {
    width: 44px;
    text-align: center;
}

.question-bank-table .question-selection-cell {
    cursor: default;
}

.question-select-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-color);
    cursor: pointer;
}

.question-bank-table .subject-col {
    width: 140px;
}

.question-bank-table .question-col {
    width: 34%;
}

.question-bank-table .category-col {
    width: 116px;
    white-space: nowrap;
}

.question-bank-table .cat-large-col,
.question-bank-table .cat-medium-col,
.question-bank-table .cat-small-col {
    width: 118px;
}

.question-bank-table .source-col {
    width: 150px;
}

.question-bank-table .difficulty-col {
    width: 112px;
    white-space: nowrap;
}

.question-title {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
    font-weight: 600;
}

.category-tag,
.source-pill,
.difficulty-pill {
    display: inline-block;
    max-width: 116px;
    overflow: hidden;
    text-overflow: ellipsis;
    vertical-align: middle;
    white-space: nowrap;
    border-radius: 5px;
    padding: 3px 7px;
    font-size: 0.82rem;
    font-weight: 650;
    line-height: 1.35;
}

.category-tag {
    margin-right: 5px;
    background: var(--surface-tint);
    color: var(--text-secondary);
}

.editable-category-tag {
    max-width: 100%;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin: 0;
    border: 0;
    box-shadow: none;
    cursor: pointer;
    text-align: left;
}

.editable-category-tag:hover,
.editable-category-tag:focus-visible {
    color: var(--accent-hover);
    box-shadow: var(--focus-ring);
}

.editable-category-text {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.category-tag.large {
    background: var(--tag-blue-bg);
    color: var(--tag-blue-text);
}

.category-tag.medium {
    background: var(--tag-green-bg);
    color: var(--tag-green-text);
}

.category-tag.small {
    background: var(--tag-rose-bg);
    color: var(--tag-rose-text);
}

.source-pill {
    max-width: 130px;
    background: var(--surface-tint);
    color: var(--text-secondary);
}

.difficulty-pill {
    margin-right: 5px;
    background: var(--tag-yellow-bg);
    color: var(--tag-yellow-text);
}

.difficulty-col small {
    color: var(--text-secondary);
    font-size: 0.76rem;
    font-weight: 600;
}

.side-panel-overlay {
    position: fixed;
    inset: 0;
    width: auto !important;
    height: auto !important;
    z-index: 9999;
    display: flex !important;
    align-items: stretch;
    justify-content: flex-end;
    background: var(--overlay-bg) !important;
    padding: 0 !important;
    overflow: hidden !important;
    pointer-events: none;
}

.question-drawer {
    width: min(720px, 100vw);
    height: 100%;
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    border-left: 1px solid var(--card-border);
    box-shadow: var(--shadow-deep);
    animation: drawerEnter 0.22s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: auto;
    --drawer-question-font-size: 16px;
    --drawer-option-font-size: 16px;
}

.question-drawer form {
    display: flex;
    flex: 1;
    min-height: 0;
    flex-direction: column;
}

.drawer-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-5);
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(251, 251, 250, 0.92);
}

.drawer-scroll {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: var(--space-5) var(--space-10) var(--space-6);
}

.drawer-frozen-question {
    flex: 0 0 auto;
    padding: var(--space-8) var(--space-10) var(--space-5);
    border-bottom: 1px solid var(--border-subtle);
    background: var(--card-bg);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.025);
}

.drawer-kicker {
    margin-bottom: var(--space-2);
    color: var(--text-tertiary);
    font-size: 0.82rem;
    font-weight: 650;
}

.drawer-title-field {
    min-height: 76px;
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--text-primary);
    font-size: var(--drawer-question-font-size);
    font-weight: 650;
    letter-spacing: 0;
    line-height: 1.45;
    resize: vertical;
}

.drawer-title-field:focus {
    border-color: transparent;
    box-shadow: none;
}

.drawer-font-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
    margin-top: var(--space-4);
    padding: var(--space-3);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface-tint);
}

.drawer-font-control {
    display: grid;
    grid-template-columns: auto minmax(96px, 1fr) 44px;
    align-items: center;
    gap: var(--space-2);
    min-width: 0;
}

.drawer-font-control label {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 700;
    white-space: nowrap;
}

.drawer-font-control input[type="range"] {
    width: 100%;
    min-height: 28px;
    padding: 0;
    accent-color: var(--accent-color);
}

.drawer-font-control output {
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 650;
    text-align: right;
}

.subject-dropdown {
    position: relative;
}

.subject-dropdown-trigger {
    width: 100%;
    min-height: 46px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    padding: var(--space-3);
    margin: 0;
    border: 1px solid var(--card-border);
    border-radius: 6px;
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    text-align: left;
}

.subject-dropdown-trigger:hover {
    background: var(--surface-tint);
    border-color: rgba(0, 0, 0, 0.16);
    color: var(--text-primary);
}

.subject-dropdown-trigger[aria-expanded="true"] {
    border-color: var(--accent-color);
    box-shadow: var(--focus-ring);
}

.subject-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    z-index: 30;
    display: grid;
    gap: 2px;
    max-height: 220px;
    overflow-y: auto;
    padding: 6px;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    background: var(--card-bg);
    box-shadow: var(--shadow-card);
}

.subject-dropdown-menu[hidden] {
    display: none;
}

.subject-dropdown-option {
    width: 100%;
    min-height: 38px;
    padding: 8px 10px;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    text-align: left;
}

.subject-dropdown-option:hover,
.subject-dropdown-option:focus-visible {
    background: var(--surface-tint);
    color: var(--accent-hover);
}

.category-select-native {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    margin: 0 !important;
    padding: 0 !important;
    opacity: 0;
    pointer-events: none;
}

.category-select {
    position: relative;
    width: 100%;
    min-width: 0;
}

.exam-list-card .category-select {
    width: auto;
    min-width: 220px;
}

.category-select-trigger {
    width: 100%;
    min-height: 46px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    padding: var(--space-3);
    margin: 0;
    border: 1px solid var(--card-border);
    border-radius: 6px;
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    text-align: left;
}

.category-select-trigger::after {
    content: "⌄";
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.category-select-trigger:hover {
    background: var(--surface-tint);
    border-color: rgba(0, 0, 0, 0.16);
    color: var(--text-primary);
}

.category-select-trigger[aria-expanded="true"] {
    border-color: var(--accent-color);
    box-shadow: var(--focus-ring);
}

.category-select-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    z-index: 80;
    width: max(100%, 280px);
    max-height: 360px;
    overflow-y: auto;
    padding: 6px;
    border: 1px solid var(--card-border);
    border-radius: 10px;
    background: var(--card-bg);
    box-shadow: var(--shadow-deep);
}

.category-select-menu[hidden] {
    display: none;
}

.category-select-option {
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr) 34px;
    align-items: center;
    gap: var(--space-2);
    min-height: 38px;
    border-radius: 8px;
}

.category-select-option::before {
    content: "";
    width: 14px;
    height: 22px;
    justify-self: center;
    opacity: 0.68;
    background-image: radial-gradient(circle, var(--text-tertiary) 1.2px, transparent 1.4px);
    background-size: 6px 6px;
}

.category-select-option:hover,
.category-select-option.is-selected {
    background: var(--surface-tint);
}

.category-select-option-main,
.category-select-option-edit,
.category-select-create {
    border: 0;
    background: transparent;
    color: var(--text-primary);
    box-shadow: none;
}

.category-select-option-main {
    min-width: 0;
    padding: 7px 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.95rem;
    font-weight: 650;
    text-align: left;
}

.category-select-option-edit {
    width: 30px;
    height: 30px;
    padding: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.category-select-option-edit:disabled {
    opacity: 0;
}

.category-select-option-main:hover,
.category-select-option-edit:hover,
.category-select-create:hover {
    background: transparent;
    color: var(--accent-hover);
}

.category-select-create {
    width: 100%;
    min-height: 36px;
    margin-top: 4px;
    padding: 7px 10px;
    border-top: 1px solid var(--border-subtle);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 650;
    text-align: left;
}

.drawer-property-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3) var(--space-4);
    margin: var(--space-6) 0;
    padding: var(--space-5) 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.question-drawer .form-group {
    margin-bottom: var(--space-3);
}

.question-drawer .drawer-property-grid .form-group {
    margin-bottom: 0;
}

.question-drawer input,
.question-drawer select,
.question-drawer textarea {
    margin: 0;
}

.drawer-section-title {
    margin: var(--space-6) 0 var(--space-3);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 700;
}

.exam-option-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin: var(--space-6) 0 var(--space-3);
}

.exam-option-header .drawer-section-title {
    margin: 0;
}

.exam-option-shuffle {
    flex: 0 0 auto;
    min-height: 36px;
    padding: 0 var(--space-3);
    font-size: 0.86rem;
}

.drawer-option-list {
    display: grid;
    gap: var(--space-2);
}

.drawer-image-preview {
    margin-bottom: var(--space-3);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface-tint);
}

.drawer-image-preview img {
    display: block;
    width: 100%;
    max-height: 260px;
    object-fit: contain;
}

.drawer-save-mode {
    display: grid;
    grid-template-columns: auto repeat(2, minmax(0, 1fr));
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border-top: 1px solid var(--border-subtle);
    background: var(--card-bg);
}

.drawer-save-mode-title {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
}

.drawer-save-mode-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    min-height: 40px;
    padding: 0 var(--space-3);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    background: var(--surface-tint);
    color: var(--text-primary);
    font-size: 0.92rem;
    font-weight: 650;
    cursor: pointer;
}

.drawer-save-mode-option input {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-color);
}

.drawer-save-mode-option:has(input:checked) {
    border-color: rgba(0, 117, 222, 0.38);
    background: var(--tag-blue-bg);
    color: var(--accent-hover);
}

.drawer-actions {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--border-subtle);
    background: var(--surface-tint);
}

.drawer-actions button {
    flex: 1;
}

.exam-review-drawer {
    width: min(1040px, 100vw);
}

.exam-pdf-toolbar {
    align-items: center;
    flex-wrap: wrap;
}

.pdf-detail-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    min-height: 44px;
    padding: 0 var(--space-3);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    background: var(--surface-tint);
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 650;
    cursor: pointer;
    user-select: none;
}

.pdf-detail-toggle input {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-color);
}

.exam-review-header {
    flex: 0 0 auto;
    padding: var(--space-8) var(--space-10) var(--space-5);
    border-bottom: 1px solid var(--border-subtle);
    background: var(--card-bg);
}

.exam-title-edit-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.exam-title-label {
    grid-column: 1 / -1;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 700;
}

.exam-title-input {
    width: 100%;
    min-width: 0;
    padding: 10px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 1.625rem;
    font-weight: 700;
    line-height: 1.25;
}

.exam-title-save-button {
    white-space: nowrap;
}

.exam-title-save-status {
    min-width: 88px;
    color: var(--text-secondary);
    font-size: 0.86rem;
    font-weight: 650;
}

.exam-review-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
}

.exam-review-order-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-top: var(--space-4);
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface-tint);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 650;
}

.exam-review-scroll {
    display: grid;
    gap: var(--space-5);
    padding-top: var(--space-6);
}

.exam-review-question-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 112px;
    gap: var(--space-4);
    padding: var(--space-5);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface-raised);
    box-shadow: var(--shadow-card);
}

.exam-review-question-card.checked-question-row {
    border-color: var(--accent-color);
    background: #FAFCFE;
}

.exam-question-main {
    min-width: 0;
}

.exam-question-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.exam-review-select {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    user-select: none;
}

.exam-review-select-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-color);
}

.exam-review-question-id {
    color: var(--text-tertiary);
    font-size: 0.78rem;
    font-weight: 650;
}

.exam-review-content {
    min-height: 112px;
    margin: 0;
    font-size: 1.05rem;
    font-weight: 650;
    line-height: 1.55;
    overflow: hidden;
    resize: vertical;
}

.question-history-row {
    margin: var(--space-3) 0 var(--space-4);
    display: grid;
    gap: var(--space-2);
}

.question-history-source {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 700;
}

.question-history-source span {
    color: var(--text-primary);
}

.question-history-categories {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.question-history-categories .category-tag {
    margin-right: 0;
}

.exam-review-meta-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
    padding: var(--space-4) 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.exam-option-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-2);
}

.exam-option-row {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    gap: var(--space-2);
    align-items: center;
}

.question-drawer .exam-option-row input {
    min-height: 44px;
    font-size: var(--drawer-option-font-size);
    line-height: 1.45;
}

.exam-option-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: var(--surface-tint);
    color: var(--text-secondary);
    font-size: var(--drawer-option-font-size);
    font-weight: 700;
}

.exam-option-row.is-answer .exam-option-number {
    background: var(--tag-blue-bg);
    color: var(--accent-hover);
}

.exam-option-row.is-answer input {
    border-color: rgba(0, 117, 222, 0.34);
    background: #F8FCFF;
}

.exam-question-actions {
    position: sticky;
    top: var(--space-4);
    align-self: start;
    display: grid;
    gap: var(--space-2);
}

.exam-question-actions button {
    width: 100%;
}

.exam-review-copy-status {
    min-height: 20px;
    margin-top: var(--space-3);
    color: var(--success-color);
    font-size: 0.86rem;
    font-weight: 650;
}

.exam-review-actions {
    background: var(--card-bg);
}

.exam-review-actions .danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.report-drawer {
    width: min(1180px, 96vw);
}

.report-paper {
    max-width: 1040px;
    margin: 0 auto;
    padding: var(--space-8);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: #FFFFFF;
    color: var(--text-primary);
}

.report-header {
    padding-bottom: var(--space-5);
    margin-bottom: var(--space-6);
    border-bottom: 2px solid var(--text-primary);
}

.report-header p {
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
    font-weight: 700;
}

.report-header h1 {
    margin-bottom: var(--space-2);
    font-size: 1.8rem;
    line-height: 1.25;
}

.report-header span {
    color: var(--text-secondary);
    font-weight: 600;
}

.report-metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.report-metric-grid div {
    padding: var(--space-4);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface-tint);
}

.report-metric-grid span {
    display: block;
    margin-bottom: var(--space-1);
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 700;
}

.report-metric-grid strong {
    font-size: 1.15rem;
}

.report-section {
    margin-top: var(--space-6);
}

.report-section h2 {
    margin-bottom: var(--space-3);
    font-size: 1.18rem;
}

.report-section h3 {
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.report-two-col {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
}

.report-two-col > div,
.report-feedback {
    padding: var(--space-4);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface-tint);
    line-height: 1.65;
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.86rem;
}

.report-table th,
.report-table td {
    padding: 8px 9px;
    border: 1px solid var(--border-subtle);
    vertical-align: top;
}

.report-table th {
    background: var(--surface-tint);
    color: var(--text-secondary);
    font-weight: 750;
    text-align: left;
}

.report-table .is-correct td {
    background: rgba(42, 157, 153, 0.06);
}

.report-table .is-wrong td {
    background: rgba(212, 76, 71, 0.06);
}

.report-question-table {
    font-size: 0.78rem;
}

.report-bar {
    width: 100%;
    min-width: 96px;
    height: 12px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.08);
}

.report-bar div {
    height: 100%;
    border-radius: inherit;
    background: var(--accent-color);
}

.report-editor {
    max-width: 1040px;
    margin: var(--space-4) auto 0;
    padding: var(--space-4);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface-tint);
}

.report-editor label {
    display: block;
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
    font-weight: 700;
}

.report-editor textarea {
    width: 100%;
    min-height: 108px;
    margin-bottom: var(--space-3);
    resize: vertical;
}

.exam-pdf-render-host {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 0;
    width: 210mm;
    background: #fff;
    color: #111;
    pointer-events: none;
}

.exam-pdf-sheet {
    width: 210mm;
    min-height: 297mm;
    padding: 10mm 12mm;
    background: #fff;
    color: #111;
    font-family: "Times New Roman", "Apple SD Gothic Neo", "Malgun Gothic", serif;
    font-size: 10px;
    line-height: 1.45;
}

.exam-pdf-header {
    display: grid;
    grid-template-columns: 72px 1fr 72px;
    align-items: center;
    margin-bottom: 4px;
}

.exam-pdf-logo {
    color: #e31b23;
    font-family: Arial, sans-serif;
    font-size: 22px;
    font-weight: 900;
    letter-spacing: 0;
}

.exam-pdf-header h1 {
    margin: 0;
    color: #111;
    font-size: 24px;
    line-height: 1.1;
    text-align: center;
    letter-spacing: 0.28em;
}

.exam-pdf-meta {
    width: 100%;
    margin: 0 0 8px;
    border-collapse: collapse;
    table-layout: fixed;
    font-size: 11px;
}

.exam-pdf-meta th,
.exam-pdf-meta td {
    border: 1px solid #111;
    padding: 3px 5px;
    text-align: center;
    vertical-align: middle;
}

.exam-pdf-meta th {
    width: 13%;
    font-weight: 700;
}

.exam-pdf-columns {
    column-count: 2;
    column-gap: 9mm;
    column-rule: 1px solid #111;
}

.exam-pdf-question {
    break-inside: avoid;
    margin-bottom: 8px;
}

.exam-pdf-question-text {
    margin: 0 0 3px;
    white-space: pre-wrap;
}

.exam-pdf-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px 7px;
}

.exam-pdf-options span {
    min-width: 0;
}

.pdf-answer-text,
.exam-pdf-answer-label {
    color: #ff2b22;
}

.exam-pdf-explanation {
    margin: 3px 0 0;
    white-space: pre-wrap;
}

.exam-pdf-explanation-text {
    color: #3f8f42;
    font-weight: 700;
}

.exam-pdf-history {
    display: flex;
    align-items: center;
    gap: 3px;
    margin: 3px 0 0;
    color: #555;
    font-size: 8px;
    line-height: 1.45;
    white-space: nowrap;
    overflow: hidden;
}

.exam-pdf-history-source-label {
    color: var(--text-secondary);
    font-weight: 700;
}

.exam-pdf-history-source {
    color: var(--text-primary);
    font-weight: 700;
}

.exam-pdf-history-tag {
    display: inline-flex;
    align-items: center;
    max-width: 26%;
    padding: 1px 4px;
    border-radius: 4px;
    font-weight: 700;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.exam-pdf-tag-large {
    background: #eef7ff;
    color: #005bab;
}

.exam-pdf-tag-medium {
    background: #eef8ef;
    color: #2f7d32;
}

.exam-pdf-tag-small {
    background: #fdecef;
    color: #b3262a;
}

.exam-pdf-history-empty {
    color: #777;
    font-weight: 600;
}

.exam-pdf-image {
    display: block;
    max-width: 100%;
    max-height: 38mm;
    margin: 3px 0;
    object-fit: contain;
}

@keyframes drawerEnter {
    from { opacity: 0; transform: translateX(24px); }
    to { opacity: 1; transform: translateX(0); }
}

@media (max-width: 1180px) {
    .admin-setup-grid {
        grid-template-columns: 1fr;
    }

    .admin-setup-panel + .admin-setup-panel {
        border-left: 0;
        border-top: 1px solid var(--border-subtle);
        padding-left: 0;
        padding-top: var(--space-6);
    }

    .dashboard-exam-grid {
        grid-template-columns: 1fr;
    }

    .admin-member-grid {
        grid-template-columns: 1fr;
    }

    .department-summary-heading {
        align-items: stretch;
        flex-direction: column;
    }

    .department-summary-total {
        justify-content: flex-start;
    }
}

@media (max-width: 900px) {
    .container { padding: var(--space-6) var(--space-4); }
    .navbar { padding: var(--space-3) var(--space-4); align-items: flex-start; gap: var(--space-3); }
    .nav-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: var(--space-2); }
    .nav-links button { margin-left: 0; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .flex-between { align-items: flex-start; gap: var(--space-4); flex-direction: column; }
    .subject-create-form { flex-direction: column; }
    .subject-create-form input { max-width: none; }
    .subject-transfer-panel { grid-template-columns: 1fr; align-items: stretch; }
    .subject-transfer-button { width: 100%; }
    .admin-setup-card { padding: var(--space-5); }
    .bulk-import-card { padding: var(--space-5); }
    .bulk-import-grid { grid-template-columns: 1fr; }
    .question-backup-controls { grid-template-columns: 1fr; }
    .question-backup-controls button { width: 100%; }
    .question-filter-row { grid-template-columns: 1fr; }
    .question-filter-row select:not(.category-select-native),
    .question-filter-row .category-select,
    .exam-list-card .question-filter-row .category-select {
        width: 100% !important;
        min-width: 0;
    }
    .question-bank-table { min-width: 1220px; }
    .question-drawer { width: 100vw; }
    .ai-preview-option-grid,
    .ai-preview-category-grid {
        grid-template-columns: 1fr;
    }
    .drawer-frozen-question { padding: var(--space-6) var(--space-5) var(--space-4); }
    .drawer-scroll { padding: var(--space-5) var(--space-5) var(--space-6); }
    .drawer-property-grid { grid-template-columns: 1fr; }
    .exam-review-header { padding: var(--space-6) var(--space-5) var(--space-4); }
    .exam-title-edit-row { grid-template-columns: 1fr; }
    .exam-title-input { font-size: 1.35rem; }
    .exam-title-save-status { min-width: 0; }
    .exam-review-question-card { grid-template-columns: 1fr; }
    .exam-review-meta-grid { grid-template-columns: 1fr; }
    .exam-question-actions { position: static; grid-template-columns: 1fr auto; }
    .report-paper { padding: var(--space-5); }
    .report-metric-grid, .report-two-col { grid-template-columns: 1fr; }
    .report-section { overflow-x: auto; }
    .report-table { min-width: 720px; }
    .drawer-save-mode { grid-template-columns: 1fr; }
    .drawer-actions { flex-direction: column; }
    .active-teacher-banner,
    .admin-results-title-row {
        align-items: stretch;
        flex-direction: column;
    }
    .department-filter-control,
    .department-filter-control select {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}