/* ============================
   EXAM PAGE STYLES (AECK Clone)
   ============================ */

/* --- LOBBY --- */
#exam-lobby-view {
    overflow-y: auto;
}
.lobby-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
    position: relative;
    z-index: 10;
}
.lobby-title {
    font-family: 'Lexend', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}
.lobby-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

/* Lobby Filter Tabs Styles */
.lobby-filter-tabs .filter-tab.active {
    background: var(--primary) !important;
    color: white !important;
    border-color: var(--primary) !important;
    box-shadow: 0 4px 10px rgba(185, 28, 28, 0.2);
}
.lobby-filter-tabs .filter-tab:hover {
    border-color: var(--primary) !important;
    color: var(--primary) !important;
}
.lobby-filter-tabs .filter-tab.active:hover {
    color: white !important;
}


/* Exam Card in Lobby */
.exam-lobby-card {
    background: var(--surface, #fff);
    border: 1px solid var(--border, #e5e7eb);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.25rem;
    transition: box-shadow 0.2s;
    position: relative;
}
.exam-lobby-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.exam-card-title {
    font-family: 'Lexend', sans-serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.75rem;
    padding-top: 0.25rem;
}
.exam-card-type {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-light);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.2rem 0.65rem;
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}
.exam-card-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}
.exam-card-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-main);
}
.exam-card-row svg {
    width: 16px;
    height: 16px;
    color: #94a3b8;
    flex-shrink: 0;
}
.exam-card-row .badge {
    display: inline-block;
    padding: 0.15rem 0.6rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}
.badge-free {
    background: #dcfce7;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}
.badge-active {
    background: #fef3c7;
    color: #d97706;
    border: 1px solid #fde68a;
    animation: pulseGlow 2s infinite;
}
@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.2); }
    50% { box-shadow: 0 0 0 6px rgba(245, 158, 11, 0); }
}
.exam-card-footer {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    border-top: 1px solid #f1f5f9;
    padding-top: 1rem;
}
.exam-card-footer .exam-card-btn {
    width: 100%;
    text-align: center;
    justify-content: center;
}
.exam-card-footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
}
.exam-card-footer .view-answers:hover {
    color: var(--primary);
}
.exam-card-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.6rem 1.8rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}
.exam-card-btn:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(185, 28, 28, 0.3);
}
.exam-card-progress {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.exam-card-progress .progress-mini {
    width: 80px;
    height: 4px;
    background: #e5e7eb;
    border-radius: 2px;
    overflow: hidden;
}
.exam-card-progress .progress-mini-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 2px;
    transition: width 0.3s;
}

/* --- EXAM INTERFACE (AECK-style fullscreen) --- */
.exam-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 1.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    z-index: 50;
    position: relative;
}
.exam-topbar-left {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}
.exam-topbar-title {
    font-family: 'Lexend', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-main);
}
.exam-topbar-user {
    color: var(--primary);
    font-weight: 700;
    font-size: 0.9rem;
}

.exam-body {
    display: flex;
    flex: 1;
    overflow: hidden;
    background: var(--bg-color);
    position: relative;
    z-index: 10;
}

/* Question area */
.exam-question-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-color);
}
.exam-question-card {
    flex: 1;
    overflow-y: auto;
    padding: 2rem 3rem;
}
@media (max-width: 768px) {
    .exam-question-card {
        padding: 1.5rem 1rem;
    }
}
.exam-question-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}
.exam-question-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    min-width: 36px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 50%;
    font-family: 'Lexend', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-main);
}
.exam-question-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-main);
    padding-top: 0;
    white-space: pre-wrap;
}

/* Options */
.exam-options-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding-left: 0;
    margin-left: 52px;
}
@media (max-width: 768px) {
    .exam-options-list {
        margin-left: 0; /* Reset margin on mobile to avoid overflow */
        padding-left: 0;
    }
}
.exam-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1.25rem;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1.15rem;
    color: var(--text-main);
    border: 1px solid var(--border);
}
.exam-option:hover {
    background: var(--primary-light);
}
.exam-option .opt-radio {
    width: 22px;
    height: 22px;
    min-width: 22px;
    border-radius: 50%;
    border: 2px solid #cbd5e1;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.exam-option.selected {
    background: var(--primary-light);
}
.exam-option.selected .opt-radio {
    border-color: var(--primary);
    background: var(--primary);
}
.exam-option.selected .opt-radio::after {
    content: '';
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
}
/* Review mode colors */
.exam-option.review-correct .opt-radio {
    border-color: #10b981;
    background: #10b981;
}
.exam-option.review-correct .opt-radio::after {
    content: '';
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
}
.exam-option.review-wrong .opt-radio {
    border-color: #ef4444;
    background: #ef4444;
}
.exam-option.review-wrong .opt-radio::after {
    content: '';
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
}
.exam-option .opt-text {
    flex: 1;
    line-height: 1.5;
    white-space: pre-wrap;
}

/* Explanation box in review */
.exam-explanation {
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    background: var(--primary-light);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 1.15rem;
    color: var(--text-main);
    line-height: 1.75;
    white-space: pre-wrap;
}
.exam-explanation summary {
    cursor: pointer;
    font-weight: 700;
    color: var(--primary);
    padding: 0.25rem 0;
}

/* Bottom bar */
.exam-bottom-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 1.5rem;
    background: var(--surface);
    border-top: 1px solid var(--border);
}
.exam-bottom-left {
    display: flex;
    gap: 0.5rem;
}
.exam-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.2rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}
.exam-nav-btn:hover {
    filter: brightness(1.1);
}
.exam-bottom-center {
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    border-radius: 8px;
}
.exam-bottom-center.status-correct {
    background: #dcfce7;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}
.exam-bottom-center.status-wrong {
    background: #fee2e2;
    color: #ef4444;
    border: 1px solid #fca5a5;
}
.exam-bottom-right {
    display: flex;
    align-items: center;
}
.exam-sync-indicator {
    font-size: 0.85rem;
    color: #16a34a;
    font-weight: 500;
}

/* --- SIDEBAR --- */
.exam-sidebar {
    width: 340px;
    min-width: 340px;
    background: var(--surface);
    border-left: 1px solid var(--border);
    overflow: visible;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}
.exam-sidebar.collapsed {
    display: none !important;
}

/* Drawer overlay styles for Reading & Science */
.exam-sidebar.overlay-drawer {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    height: 100%;
    z-index: 100;
    transform: translateX(0);
    background: var(--bg-color) !important;
    box-shadow: -4px 0 24px rgba(0,0,0,0.15);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.exam-sidebar.overlay-drawer.collapsed {
    display: flex !important;
    transform: translateX(100%);
}

/* Backdrop overlay to prevent click-through when sidebar drawer is open */
.sidebar-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 998;
    cursor: pointer;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    animation: fadeIn 0.2s ease;
}
.sidebar-backdrop.active {
    display: block;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Tab button stuck to the left edge of the sidebar drawer */
.drawer-toggle-tab {
    position: absolute;
    left: -32px;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 150px;
    background: var(--primary);
    color: white;
    border-radius: 8px 0 0 8px;
    cursor: pointer;
    pointer-events: auto;
    transition: background 0.2s;
    border: 1px solid var(--border);
    border-right: none;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}
.drawer-toggle-tab:hover {
    background: #a31818;
}
.drawer-toggle-tab span {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: 'Lexend', sans-serif;
    font-weight: 700;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    text-align: center;
    white-space: nowrap;
}

.exam-sidebar-section {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}
.sidebar-info-label {
    font-family: 'Lexend', sans-serif;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}
.sidebar-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}
.sidebar-info-key {
    color: var(--text-muted);
}
.sidebar-info-val {
    font-weight: 700;
    color: var(--primary);
}

/* Timer section */
.exam-timer-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.exam-timer-display {
    font-family: 'Lexend', sans-serif;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-main);
    min-width: 80px;
    text-align: right;
}
.exam-timer-display.timer-danger {
    color: #ef4444;
}
.exam-submit-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
    margin-left: auto;
}
.exam-submit-btn:hover {
    filter: brightness(1.1);
    box-shadow: 0 4px 12px rgba(185, 28, 28, 0.3);
}

/* Color legend */
.exam-color-legend {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}
.color-legend-count {
    width: auto;
    min-width: 32px;
    padding: 0 0.5rem;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    white-space: nowrap;
}
.legend-total {
    background: var(--surface);
    color: var(--text-muted);
    border: 1px solid var(--border);
}
.legend-answered {
    background: #16a34a;
    color: white;
}
.legend-unanswered {
    background: #f59e0b;
    color: white;
    border: 2px solid #fbbf24;
}

/* Question grid */
.exam-question-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 8px;
    margin-bottom: 0.5rem;
}
.eq-box {
    aspect-ratio: 1;
    border-radius: 8px;
    border: 1.5px solid var(--border);
    background: var(--surface);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Lexend', sans-serif;
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.15s;
    color: var(--text-muted);
}
.eq-box:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: scale(1.1);
    z-index: 2;
}
.eq-box.current {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-light);
}
.eq-box.answered {
    background: #16a34a;
    color: white;
    border-color: #16a34a;
}
.eq-box.marked {
    border: 2px solid #f59e0b !important;
    box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.25);
}

/* Question Bookmark (Flag) Button */
.exam-bookmark-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-left: auto;
    flex-shrink: 0;
    font-family: inherit;
}
.exam-bookmark-btn:hover {
    border-color: #f59e0b;
    color: #d97706;
    background: rgba(245,158,11,0.1);
}
.exam-bookmark-btn.active {
    border-color: #f59e0b;
    background: rgba(245,158,11,0.15);
    color: #f59e0b;
}
/* Review mode */
.eq-box.review-correct {
    background: #16a34a;
    color: white;
    border-color: #16a34a;
}
.eq-box.review-wrong {
    background: #ef4444;
    color: white;
    border-color: #ef4444;
}
.eq-box.review-skipped {
    background: var(--surface);
    color: var(--text-muted);
    border-color: var(--border);
}

/* Progress */
.exam-progress-section {
    margin-top: auto;
}
.exam-progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 0.5rem;
}
.exam-progress-fill {
    height: 100%;
    background: #16a34a;
    border-radius: 3px;
    transition: width 0.3s;
    width: 0%;
}
.exam-progress-pct {
    display: block;
    text-align: right;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* --- RESULT PAGE (AECK-style) --- */
.result-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 2rem 4rem;
    width: 100%;
    overflow-y: auto;
    flex: 1;
    position: relative;
    z-index: 10;
}
.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}
.result-back-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}
.result-back-link:hover {
    color: var(--primary);
}
.result-redo-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    color: var(--text-main);
    font-family: inherit;
    transition: all 0.2s;
}
.result-redo-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.result-exam-title {
    font-family: 'Lexend', sans-serif;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}
.result-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2.5rem;
}
.result-meta span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.result-body {
    display: flex;
    align-items: flex-start;
    gap: 4rem;
}
@media (max-width: 900px) {
    .result-body {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    .result-sections {
        width: 100%;
    }
}

/* Donut chart */
.result-donut-wrap {
    position: relative;
    width: 260px;
    min-width: 260px;
    height: 260px;
}
.result-donut {
    width: 100%;
    height: 100%;
}
.donut-bg {
    stroke: #e5e7eb;
}
.donut-fill {
    transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.donut-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}
.donut-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}
.donut-score {
    font-family: 'Lexend', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1;
}

/* Section results */
.result-sections {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.result-section-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.result-section-info {
    flex: 1;
}
.result-section-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-main);
    margin-bottom: 0;
    width: 160px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 0;
}
.result-section-bar {
    width: 100%;
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
}
.result-section-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}
.result-section-score {
    font-family: 'Lexend', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-main);
    min-width: 55px;
    text-align: right;
}
.result-section-detail-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    white-space: nowrap;
}
.result-section-detail-btn:hover {
    filter: brightness(1.1);
}

/* Session resume modal */
.session-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99990;
    animation: fadeIn 0.2s ease;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.session-modal {
    background: var(--surface);
    border: 1px solid var(--border);
    backdrop-filter: var(--glass-blur);
    border-radius: 16px;
    padding: 2rem;
    max-width: 480px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}
.session-modal h3 {
    font-family: 'Lexend', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.75rem;
}
.session-modal p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}
.session-modal-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}
.session-modal-actions button {
    padding: 0.65rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
    border: none;
}
.session-btn-continue {
    background: var(--primary);
    color: white;
}
.session-btn-continue:hover {
    filter: brightness(1.1);
}
.session-btn-submit {
    background: var(--primary-light);
    color: var(--primary);
    border: 1px solid var(--border) !important;
}
.session-btn-submit:hover {
    background: var(--primary-light);
    filter: brightness(0.95);
}

/* --- MYTSA MODAL STYLES (100% y chang MyTSA) --- */
@font-face {
  font-family: 'icomoon';
  src: 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format('woff'), url(data:image/svg+xml;base64,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) format('svg');
  font-weight: normal;
  font-style: normal;
}
.react-viewer {
  opacity: 0;
}
.react-viewer-inline {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 400px;
}
.react-viewer ul {
  margin: 0;
  padding: 0;
}
.react-viewer li {
  list-style: none;
}
.react-viewer-mask {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  background-color: #373737;
  background-color: rgba(55, 55, 55, 0.6);
  height: 100%;
  filter: alpha(opacity=50);
  z-index: 1000;
}
.react-viewer-btn {
  background-color: rgba(0, 0, 0, 0.5);
  color: white;
}
.react-viewer-btn:hover {
  background-color: rgba(0, 0, 0, 0.8);
}
.react-viewer-close {
  position: fixed;
  top: 0px;
  right: 0px;
  overflow: hidden;
  width: 40px;
  height: 40px;
  border-radius: 0 0 0 40px;
  cursor: pointer;
  z-index: 1010;
}
.react-viewer-close > i {
  position: relative;
  top: 4px;
  left: 18px;
}
.react-viewer-canvas {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  overflow: hidden;
  z-index: 1005;
}
.react-viewer-canvas > img {
  display: block;
  width: auto;
  height: auto;
  -webkit-user-select: none;
       -moz-user-select: none;
        -ms-user-select: none;
            user-select: none;
}
.react-viewer-canvas > img.drag {
  cursor: move;
}
.react-viewer-footer {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
  text-align: center;
  z-index: 1005;
}
.react-viewer-inline > .react-viewer-mask,
.react-viewer-inline > .react-viewer-close,
.react-viewer-inline > .react-viewer-canvas,
.react-viewer-inline > .react-viewer-footer {
  position: absolute;
}
.react-viewer-attribute {
  margin: 0 20px;
  margin-bottom: 6px;
  opacity: 0.8;
  color: #ccc;
  font-size: 15px;
}
.react-viewer-showTotal {
  float: right;
}
.react-viewer-toolbar {
  overflow: hidden;
  height: 28px;
  margin-bottom: 6px !important;
}
.react-viewer-toolbar li {
  display: inline-block;
  width: 28px;
  height: 28px;
  border-radius: 28px;
  margin-right: 3px;
  cursor: pointer;
  line-height: 28px;
}
.react-viewer-toolbar li:hover {
  background-color: rgba(0, 0, 0, 0.8);
}
.react-viewer li.empty {
  background-color: transparent;
  cursor: default;
}
.react-viewer-navbar {
  overflow: hidden;
  background-color: rgba(0, 0, 0, 0.5);
}
.react-viewer-list {
  height: 50px;
  padding: 1px;
  text-align: left;
}
.react-viewer-list > li {
  display: inline-block;
  width: 30px;
  height: 50px;
  cursor: pointer;
  overflow: hidden;
  margin-right: 1px;
}
.react-viewer-list > li > img {
  width: 60px;
  height: 50px;
  margin-left: -15px;
  opacity: 0.5;
}
.react-viewer-list > li.active > img {
  opacity: 1;
}
.react-viewer-transition {
  -webkit-transition: opacity 0.3s ease-out;
  -o-transition: opacity 0.3s ease-out;
  transition: opacity 0.3s ease-out;
}
.react-viewer-image-transition {
  -webkit-transition-property: width, height, margin, -webkit-transform;
  transition-property: width, height, margin, -webkit-transform;
  -o-transition-property: width, height, margin, transform;
  transition-property: width, height, margin, transform;
  transition-property: width, height, margin, transform, -webkit-transform;
  -webkit-transition-duration: 0.3s;
       -o-transition-duration: 0.3s;
         transition-duration: 0.3s;
  -webkit-transition-timing-function: ease-out;
       -o-transition-timing-function: ease-out;
         transition-timing-function: ease-out;
}
.react-viewer-list-transition {
  -webkit-transition: margin 0.3s ease-out;
  -o-transition: margin 0.3s ease-out;
  transition: margin 0.3s ease-out;
}
.react-viewer-icon {
  font-family: 'icomoon' !important;
  display: inline-block;
  font-style: normal;
  vertical-align: baseline;
  text-align: center;
  text-transform: none;
  text-rendering: auto;
  line-height: 1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: white;
  font-size: 13px;
}
.react-viewer-icon-zoomIn:before {
  content: '\ea0a';
}
.react-viewer-icon-zoomOut:before {
  content: '\ea0b';
}
.react-viewer-icon-prev:before {
  content: '\ea38';
}
.react-viewer-icon-next:before {
  content: '\ea34';
}
.react-viewer-icon-close:before {
  content: '\ea0f';
}
.react-viewer-icon-rotateLeft:before {
  content: '\e967';
}
.react-viewer-icon-rotateRight:before {
  content: '\e968';
}
.react-viewer-icon-reset:before {
  content: '\e984';
}
.react-viewer-icon-scaleX:before {
  content: '\ea60';
}
.react-viewer-icon-scaleY:before {
  content: '\ea5f';
}
.react-viewer-icon-download:before {
  content: '\e9c7';
}
.circle-loading {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  width: 80px;
  height: 80px;
  border-radius: 100%;
  border: 10px solid rgba(255, 255, 255, 0.2);
  border-top-color: #FFF;
  -webkit-animation: spin 1s infinite linear;
          animation: spin 1s infinite linear;
}
@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}

/* --- High-Legibility Premium Results Modal --- */
.modal-wrap-fallback {
    background-color: rgba(10, 15, 30, 0.75) !important;
    backdrop-filter: blur(16px) !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    height: 100% !important;
    width: 100% !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    padding: 20px !important;
    box-sizing: border-box !important;
    z-index: 100000 !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
}

.mytsa-modal-container {
    max-width: 860px !important;
    width: 100% !important;
    background: rgba(30, 41, 59, 0.95) !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    border-radius: 24px !important;
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.6), 0 0 50px rgba(255, 255, 255, 0.05) !important;
    padding: 32px !important;
    position: relative !important;
    color: #f8fafc !important;
    font-family: 'Lexend', 'Inter', sans-serif !important;
    box-sizing: border-box !important;
    animation: mytsaModalFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
    margin: auto !important;
}

@keyframes mytsaModalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.mytsa-modal-close {
    position: absolute !important;
    top: 20px !important;
    right: 20px !important;
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    color: #94a3b8 !important;
    width: 38px !important;
    height: 38px !important;
    border-radius: 50% !important;
    cursor: pointer !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: all 0.2s ease !important;
}

.mytsa-modal-close:hover {
    background: rgba(239, 68, 68, 0.15) !important;
    color: #f87171 !important;
    border-color: rgba(239, 68, 68, 0.3) !important;
    transform: rotate(90deg) !important;
}

.mytsa-modal-header {
    margin-bottom: 24px !important;
    text-align: left !important;
}

.mytsa-modal-title {
    font-size: 1.45rem !important;
    font-weight: 800 !important;
    color: #ffffff !important;
    margin: 0 0 12px 0 !important;
    letter-spacing: -0.025em !important;
}

.mytsa-modal-divider {
    height: 1px !important;
    background: linear-gradient(90deg, rgba(255,255,255,0.15), rgba(255,255,255,0.02)) !important;
    width: 100% !important;
}

.mytsa-modal-body {
    display: flex !important;
    gap: 32px !important;
    flex-wrap: wrap !important;
    text-align: left !important;
}

.mytsa-modal-left {
    flex: 1 1 380px !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 20px !important;
}

.mytsa-modal-right {
    flex: 1 1 360px !important;
    background: rgba(15, 23, 42, 0.35) !important;
    border: 1px solid rgba(255, 255, 255, 0.05) !important;
    border-radius: 18px !important;
    padding: 24px !important;
    box-sizing: border-box !important;
}

/* Score Card */
.mytsa-score-card {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(220, 38, 38, 0.03)) !important;
    border: 1px solid rgba(239, 68, 68, 0.25) !important;
    border-radius: 20px !important;
    padding: 20px !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    box-sizing: border-box !important;
}

.mytsa-score-header {
    font-size: 0.8rem !important;
    font-weight: 700 !important;
    color: #ef4444 !important;
    letter-spacing: 0.1em !important;
    margin-bottom: 6px !important;
}

.mytsa-score-value {
    font-size: 3.2rem !important;
    font-weight: 900 !important;
    color: #ef4444 !important;
    line-height: 1 !important;
    margin-bottom: 20px !important;
    text-shadow: 0 0 25px rgba(239, 68, 68, 0.25) !important;
}

.mytsa-section-scores {
    width: 100% !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 10px !important;
    margin-bottom: 24px !important;
}

.mytsa-sec-score-item {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    background: rgba(255, 255, 255, 0.03) !important;
    border: 1px solid rgba(255, 255, 255, 0.05) !important;
    padding: 8px 12px !important;
    border-radius: 10px !important;
    font-size: 0.8rem !important;
    gap: 8px !important;
}

.sec-score-title {
    color: #94a3b8 !important;
    font-weight: 500 !important;
    flex: 1 !important;
    text-align: left !important;
    line-height: 1.4 !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
}

.sec-score-val {
    color: #f1f5f9 !important;
    font-weight: 700 !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
}

/* Certificate View Button */
.mytsa-btn-cert {
    width: 100% !important;
    background: linear-gradient(135deg, #ef4444, #dc2626) !important;
    color: white !important;
    font-weight: 700 !important;
    font-size: 0.95rem !important;
    letter-spacing: 0.025em !important;
    padding: 12px 24px !important;
    border-radius: 12px !important;
    border: none !important;
    cursor: pointer !important;
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.35) !important;
    transition: all 0.2s ease !important;
}

.mytsa-btn-cert:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.45) !important;
    filter: brightness(1.1) !important;
}

.mytsa-btn-cert:active {
    transform: translateY(0) !important;
}

/* Status Badge */
.mytsa-status-badge {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    background: rgba(16, 185, 129, 0.08) !important;
    border: 1px solid rgba(16, 185, 129, 0.2) !important;
    border-radius: 12px !important;
    padding: 12px 16px !important;
    color: #34d399 !important;
    font-size: 0.85rem !important;
    font-weight: 600 !important;
    line-height: 1.4 !important;
    box-sizing: border-box !important;
}

.mytsa-status-badge .badge-icon {
    width: 18px !important;
    height: 18px !important;
    flex-shrink: 0 !important;
}

/* Right Info List */
.mytsa-info-title {
    font-size: 1.1rem !important;
    font-weight: 700 !important;
    color: #ffffff !important;
    margin: 0 0 20px 0 !important;
    letter-spacing: -0.01em !important;
}

.mytsa-info-list {
    display: flex !important;
    flex-direction: column !important;
    gap: 16px !important;
}

.mytsa-info-item {
    display: flex !important;
    flex-direction: column !important;
    gap: 4px !important;
    align-items: flex-start !important;
}

.info-label {
    font-size: 0.8rem !important;
    font-weight: 600 !important;
    color: #64748b !important;
    text-transform: uppercase !important;
    letter-spacing: 0.05em !important;
}

.info-val {
    font-size: 0.95rem !important;
    font-weight: 500 !important;
    color: #e2e8f0 !important;
    line-height: 1.5 !important;
    text-align: left !important;
}

.info-val.highlight {
    color: #ef4444 !important;
    font-weight: 700 !important;
    font-size: 1.05rem !important;
}

.info-link {
    color: #ef4444 !important;
    text-decoration: none !important;
    font-weight: 700 !important;
    font-size: 0.95rem !important;
    display: inline-flex !important;
    align-items: center !important;
    transition: all 0.2s ease !important;
}

.info-link:hover {
    color: #f87171 !important;
    text-decoration: underline !important;
}

/* True/False Question Styling */
.tf-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    margin-top: 1rem;
}
.tf-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    gap: 1.5rem;
    transition: all 0.2s ease;
}
.tf-row:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}
.tf-statement-text {
    flex: 1;
    font-size: 1.15rem;
    color: var(--text-main);
    line-height: 1.8;
}
.tf-statement-num {
    font-size: 1.15rem;
}
.tf-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}
.tf-btn {
    padding: 0.5rem 1.25rem;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 1.15rem;
    cursor: pointer;
    transition: all 0.15s ease;
    min-width: 75px;
    text-align: center;
    user-select: none;
}
.tf-btn:hover {
    border-color: var(--primary);
    color: var(--text-main);
}
/* Selected state for True (Đúng) button */
.tf-btn.selected-true {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border-color: #22c55e;
}
/* Selected state for False (Sai) button */
.tf-btn.selected-false {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border-color: #ef4444;
}

/* Review Mode styles for True/False options */
.tf-row.review-correct {
    border-color: #22c55e;
    background: rgba(34, 197, 94, 0.05);
}
.tf-row.review-wrong {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.05);
}
.tf-btn.review-correct-choice {
    background: #22c55e;
    color: #ffffff;
    border-color: #22c55e;
}
.tf-btn.review-wrong-choice {
    background: #ef4444;
    color: #ffffff;
    border-color: #ef4444;
}
.tf-btn.disabled {
    pointer-events: none;
    opacity: 0.8;
}

/* --- Passage Split Layout --- */
.exam-question-area.split-layout {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    height: 100%;
}
.exam-passage-panel {
    flex: 1;
    background: transparent;
    border-right: 1px solid var(--border);
    padding: 2rem 2.5rem;
    overflow-y: auto;
}
.exam-question-panel {
    flex: 1.1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.passage-title {
    font-family: 'Lexend', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
    margin-top: 0;
    margin-bottom: 1.25rem;
    border-left: 4px solid var(--primary);
    padding-left: 0.75rem;
    line-height: 1.4;
}
.passage-content {
    font-size: 1.2rem;
    line-height: 1.9;
    color: var(--text-main);
    white-space: pre-wrap;
}

/* --- Drag and Drop Blanks --- */
.dd-blank {
    display: inline-flex;
    min-width: 120px;
    min-height: 32px;
    height: auto;
    border-bottom: 2px dashed #94a3b8;
    background: var(--surface);
    border-radius: 4px;
    margin: 4px 4px;
    text-align: center;
    align-items: center;
    justify-content: center;
    vertical-align: middle;
    line-height: 1.4;
    font-weight: 600;
    color: #1e293b;
    transition: all 0.2s;
    padding: 0 8px;
}
.dd-blank.hovered {
    background: #e2e8f0;
    border-color: var(--primary);
}
.dd-blank.filled {
    border-bottom: 2px solid #22c55e;
    background: #f0fdf4;
    color: #15803d;
}
.dd-blank.filled.review-correct {
    background: #dcfce7;
    border-color: #22c55e;
    color: #15803d;
}
.dd-blank.filled.review-wrong {
    background: #fee2e2;
    border-color: #ef4444;
    color: #b91c1c;
}
.dd-tokens-container {
    margin-top: 2rem;
    padding: 1.25rem;
    background: #f8fafc;
    border: 1px dashed #cbd5e1;
    border-radius: 12px;
}
.dd-tokens-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}
.dd-tokens-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.dd-token {
    padding: 6px 14px;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    color: #334155;
    cursor: grab;
    user-select: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    transition: all 0.2s;
}
.dd-token:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
.dd-token.dragging {
    opacity: 0.5;
}
.dd-token.selected {
    border-color: var(--primary);
    background: rgba(239, 68, 68, 0.1);
    color: var(--primary);
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.3);
}
.dd-blank.awaiting-drop {
    animation: pulse-blank 1s ease-in-out infinite;
    border-color: var(--primary);
}
@keyframes pulse-blank {
    0%, 100% { background: var(--surface); }
    50% { background: rgba(239, 68, 68, 0.08); }
}

/* --- Short Answer Input --- */
.short-answer-container {
    margin-top: 1.5rem;
    max-width: 400px;
}
.short-answer-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1.05rem;
    border: 2px solid #cbd5e1;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.2s, background-color 0.2s, color 0.2s;
    background: #ffffff;
    color: #1e293b;
    font-weight: 600;
}
.short-answer-input:focus {
    border-color: var(--primary);
}
.short-answer-input.review-correct {
    border-color: #22c55e;
    background: #f0fdf4;
    color: #15803d;
}
.short-answer-input.review-wrong {
    border-color: #ef4444;
    background: #fee2e2;
    color: #b91c1c;
}
.short-answer-correct-display {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: #15803d;
    font-weight: 600;
}

/* Dark Mode Overrides for Inputs */
body.dark-mode .short-answer-input {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(255, 255, 255, 0.15);
    color: #f8fafc;
}
body.dark-mode .short-answer-input:disabled {
    background: rgba(15, 23, 42, 0.8);
    color: #cbd5e1;
    border-color: rgba(255, 255, 255, 0.1);
}
body.dark-mode .short-answer-input.review-correct {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
    border-color: rgba(34, 197, 94, 0.4);
}
body.dark-mode .short-answer-input.review-wrong {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border-color: rgba(239, 68, 68, 0.4);
}
body.dark-mode .dd-blank {
    background: rgba(30, 41, 59, 0.8);
    color: #f8fafc;
    border-bottom-color: rgba(255, 255, 255, 0.3);
}
body.dark-mode .dd-blank.filled {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
    border-bottom-color: #4ade80;
}
body.dark-mode .dd-blank.filled.review-correct {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
    border-color: #22c55e;
}
body.dark-mode .dd-blank.filled.review-wrong {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    border-color: #ef4444;
}
body.dark-mode .dd-tokens-container {
    background: rgba(30, 41, 59, 0.4);
    border-color: rgba(255, 255, 255, 0.15);
}
body.dark-mode .dd-tokens-title {
    color: #94a3b8;
}
body.dark-mode .dd-token {
    background: rgba(30, 41, 59, 0.9);
    border-color: rgba(255, 255, 255, 0.15);
    color: #f1f5f9;
}

/* --- Option Image Styling --- */
.opt-image-container {
    margin-top: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.opt-image {
    max-height: 120px;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
    object-fit: contain;
}



/* --- Inline Short Answer (Fill in the blanks) --- */
.sa-inline-input {
    display: inline-block;
    width: 120px;
    text-align: center;
    margin: 0 4px;
    border-bottom: 2px solid #a855f7;
    border-radius: 4px;
    padding: 2px 4px;
    background: #faf5ff;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
    color: #1e293b;
    font-weight: 600;
    transition: all 0.2s;
}
.sa-inline-input:focus {
    border-bottom-color: var(--primary);
}
.sa-inline-input:disabled {
    border: 1px solid #d1d5db;
    background: #f1f5f9;
    color: #475569;
}
.sa-inline-input.review-correct {
    border-color: #22c55e;
    background: #f0fdf4;
    color: #15803d;
}
.sa-inline-input.review-wrong {
    border-color: #ef4444;
    background: #fee2e2;
    color: #b91c1c;
}
.inline-correct-ans {
    font-size: 0.8rem;
    color: #10b981;
    font-weight: bold;
    margin-left: 2px;
}

/* Dark Mode Overrides for Inline Short Answer */
body.dark-mode .sa-inline-input {
    background: rgba(30, 41, 59, 0.8);
    border-bottom-color: #a78bfa;
    color: #f8fafc;
}
body.dark-mode .sa-inline-input:disabled {
    background: rgba(15, 23, 42, 0.8);
    border-color: rgba(255, 255, 255, 0.15);
    color: #cbd5e1;
}
body.dark-mode .sa-inline-input.review-correct {
    background: rgba(34, 197, 94, 0.15);
    border-color: rgba(34, 197, 94, 0.4);
    color: #4ade80;
}
body.dark-mode .sa-inline-input.review-wrong {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.4);
    color: #f87171;
}
body.dark-mode .inline-correct-ans {
    color: #34d399;
}

.exam-question-text p:first-child { margin-top: 0; }

/* Multiple Select Checkbox Styling */
.exam-option .opt-radio.checkbox-style {
    border-radius: 4px !important;
}

.exam-option.selected .opt-radio.checkbox-style::after,
.exam-option.review-correct .opt-radio.checkbox-style::after,
.exam-option.review-wrong .opt-radio.checkbox-style::after {
    content: '';
    width: 6px;
    height: 10px;
    background: transparent;
    border: solid white;
    border-width: 0 2px 2px 0;
    border-radius: 0;
    transform: rotate(45deg);
    margin-bottom: 2px;
}

/* ============================================================
   MOBILE RESPONSIVE — Exam Page
   All rules are scoped to max-width: 768px.
   Desktop layout is NOT affected.
   ============================================================ */
@media (max-width: 768px) {

    /* --- LOBBY --- */
    .lobby-container {
        padding: 1.25rem 0.75rem;
    }
    .lobby-title {
        font-size: 1.4rem;
    }
    .lobby-subtitle {
        font-size: 0.85rem;
        margin-bottom: 1.25rem;
    }
    .lobby-filter-tabs {
        display: flex;
        flex-wrap: wrap;
        gap: 0.4rem;
    }
    .lobby-filter-tabs .filter-tab {
        font-size: 0.78rem !important;
        padding: 0.35rem 0.7rem !important;
    }
    .exam-lobby-card {
        padding: 1rem;
        border-radius: 10px;
        margin-bottom: 0.75rem;
    }
    .exam-card-title {
        font-size: 1rem;
    }
    .exam-card-type {
        font-size: 0.7rem;
        padding: 0.15rem 0.5rem;
    }
    .exam-card-row {
        font-size: 0.82rem;
    }
    .exam-card-footer {
        flex-direction: column;
        gap: 0.75rem;
        align-items: stretch;
    }
    .exam-card-btn {
        width: 100%;
        text-align: center;
        padding: 0.65rem 1rem;
        font-size: 0.9rem;
    }

    /* --- EXAM TOPBAR --- */
    .exam-topbar {
        padding: 0.5rem 0.75rem;
        flex-wrap: nowrap;
        gap: 0.4rem;
        max-width: 100vw;
        box-sizing: border-box;
    }
    .exam-topbar-left {
        gap: 0.5rem;
        flex: 1;
        min-width: 0;
        overflow: hidden;
    }
    .exam-topbar-title {
        font-size: 0.75rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 140px;
    }
    .exam-topbar-user {
        font-size: 0.72rem;
    }

    /* --- EXAM BODY: fill viewport, no zoom needed --- */
    /* Only apply when exam is visible (JS sets display:flex) */
    #exam-content[style*="flex"] {
        position: fixed !important;
        inset: 0 !important;
        z-index: 100 !important;
        flex-direction: column !important;
        height: 100vh !important;
        height: 100dvh !important;
        width: 100vw !important;
        overflow: hidden !important;
        /* iPhone safe area padding */
        padding-top: env(safe-area-inset-top, 0px);
        padding-left: env(safe-area-inset-left, 0px);
        padding-right: env(safe-area-inset-right, 0px);
        padding-bottom: env(safe-area-inset-bottom, 0px);
        box-sizing: border-box;
    }
    .exam-body {
        flex-direction: column;
        flex: 1;
        height: 0;
        min-height: 0;
        overflow: hidden;
        width: 100%;
        max-width: 100vw;
    }

    /* --- SIDEBAR: full-width bottom drawer --- */
    .exam-sidebar {
        width: 100% !important;
        min-width: 100% !important;
        border-left: none;
        border-top: 1px solid var(--border);
        max-height: none;
    }
    .exam-sidebar.overlay-drawer {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        height: 55vh;
        max-height: 55vh;
        border-radius: 16px 16px 0 0;
        overflow-y: auto;
        transition: transform 0.15s ease-out;
        will-change: transform;
    }
    .exam-sidebar.overlay-drawer.collapsed {
        transform: translateY(100%);
    }
    .drawer-toggle-tab {
        left: 50%;
        top: -36px;
        bottom: auto;
        transform: translateX(-50%);
        width: 120px;
        height: 32px;
        border-radius: 8px 8px 0 0;
        padding-right: 0;
    }
    .drawer-toggle-tab span {
        writing-mode: horizontal-tb;
        text-orientation: mixed;
        font-size: 0.72rem;
    }
    .exam-sidebar-section {
        padding: 0.75rem 0.75rem;
    }
    .exam-question-grid {
        grid-template-columns: repeat(8, 1fr);
        gap: 6px;
    }
    .eq-box {
        font-size: 0.75rem;
    }
    .exam-timer-display {
        font-size: 1.3rem;
    }
    .exam-submit-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    /* --- QUESTION AREA --- */
    .exam-question-area {
        flex: 1;
        min-height: 0;
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
        max-width: 100vw;
    }
    .exam-question-card {
        padding: 1rem 0.75rem;
        overflow-x: hidden;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    .exam-question-header {
        flex-wrap: wrap;
        gap: 0.5rem;
        margin-bottom: 1rem;
    }
    .exam-question-num {
        width: 30px;
        height: 30px;
        min-width: 30px;
        font-size: 0.82rem;
    }
    .exam-question-text {
        flex: 1 1 calc(100% - 44px);
        font-size: 1.05rem;
        line-height: 1.7;
        min-width: 0;
        word-break: break-word;
    }
    .exam-bookmark-btn {
        margin-left: auto;
        order: -1;
        position: absolute;
        top: 0.75rem;
        right: 0.75rem;
        font-size: 0.72rem;
        padding: 0.25rem 0.5rem;
        z-index: 5;
    }
    .exam-question-card {
        position: relative;
    }
    .exam-options-list {
        margin-left: 0;
        gap: 0.5rem;
    }
    .exam-option {
        padding: 0.7rem 0.85rem;
        font-size: 1rem;
        gap: 0.6rem;
        border-radius: 8px;
    }
    .exam-option .opt-radio {
        width: 18px;
        height: 18px;
        min-width: 18px;
    }
    .exam-option .opt-text {
        font-size: 1rem;
        word-break: break-word;
    }

    /* --- BOTTOM BAR --- */
    .exam-bottom-bar {
        padding: 0.4rem 0.5rem;
        flex-wrap: nowrap;
        gap: 0.3rem;
        max-width: 100vw;
        box-sizing: border-box;
        flex-shrink: 0;
    }
    .exam-nav-btn {
        padding: 0.4rem 0.6rem;
        font-size: 0.75rem;
    }
    .exam-bottom-center {
        font-size: 0.72rem;
        flex: 1;
        justify-content: center;
        order: 0;
        width: auto;
    }

    /* --- EXPLANATION --- */
    .exam-explanation {
        font-size: 1.05rem;
        padding: 0.85rem 1rem;
    }

    /* --- BOOKMARK BUTTON --- */
    .exam-bookmark-btn {
        font-size: 0.72rem;
        padding: 0.25rem 0.5rem;
    }

    /* --- PASSAGE SPLIT LAYOUT: stack vertically --- */
    .exam-question-area.split-layout {
        flex-direction: column;
    }
    .exam-passage-panel {
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 1rem 0.75rem;
        max-height: 40vh;
        flex: none;
    }
    .exam-question-panel {
        flex: 1;
    }
    .passage-title {
        font-size: 1.05rem;
    }
    .passage-content {
        font-size: 1.1rem;
        line-height: 1.7;
    }

    /* --- TRUE/FALSE --- */
    .tf-row {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        padding: 0.85rem 0.75rem;
    }
    .tf-statement-text {
        font-size: 1.05rem;
        line-height: 1.6;
    }
    .tf-statement-num {
        font-size: 1.05rem;
    }
    .tf-actions {
        justify-content: stretch;
    }
    .tf-btn {
        flex: 1;
        font-size: 0.95rem;
        min-width: 0;
        padding: 0.5rem 0.75rem;
    }

    /* --- DRAG AND DROP --- */
    .dd-blank {
        min-width: 80px;
        min-height: 28px;
    }
    .dd-tokens-container {
        padding: 0.75rem;
    }
    .dd-token {
        font-size: 0.85rem;
        padding: 5px 10px;
    }

    /* --- SHORT ANSWER --- */
    .short-answer-container {
        max-width: 100%;
    }

    /* --- RESULT PAGE --- */
    .result-container {
        padding: 1rem 0.75rem 2rem;
    }
    .result-header {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }
    .result-exam-title {
        font-size: 1.25rem;
    }
    .result-meta {
        flex-wrap: wrap;
        gap: 0.75rem;
        font-size: 0.82rem;
        margin-bottom: 1.5rem;
    }
    .result-body {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    .result-donut-wrap {
        width: 200px;
        min-width: 200px;
        height: 200px;
    }
    .donut-score {
        font-size: 2rem;
    }
    .result-sections {
        width: 100%;
    }
    .result-section-row {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    .result-section-name {
        width: 100%;
        white-space: normal;
        font-size: 0.9rem;
    }
    .result-section-score {
        font-size: 0.95rem;
    }
    .result-section-detail-btn {
        font-size: 0.78rem;
        padding: 0.4rem 0.8rem;
    }

    /* --- SESSION MODAL --- */
    .session-modal {
        padding: 1.25rem;
        border-radius: 12px;
        max-width: 95%;
    }
    .session-modal-actions {
        flex-direction: column;
    }
    .session-modal-actions button {
        width: 100%;
    }

    /* --- MYTSA RESULTS MODAL --- */
    .mytsa-modal-container {
        padding: 20px !important;
        border-radius: 16px !important;
        max-width: 95% !important;
    }
    .mytsa-modal-body {
        flex-direction: column !important;
        gap: 16px !important;
    }
    .mytsa-modal-left {
        flex: 1 1 auto !important;
    }
    .mytsa-modal-right {
        flex: 1 1 auto !important;
        padding: 16px !important;
    }
    .mytsa-score-value {
        font-size: 2.5rem !important;
    }
    .mytsa-modal-title {
        font-size: 1.15rem !important;
    }

    /* --- INLINE SHORT ANSWER --- */
    .sa-inline-input {
        width: 90px;
        font-size: 0.9rem;
    }
}

/* ===== iPhone Landscape Exam Optimization ===== */
@media (max-height: 500px) and (orientation: landscape) {
    /* Topbar: ultra compact */
    .exam-topbar {
        padding: 0.2rem 0.5rem;
        padding-left: max(0.5rem, env(safe-area-inset-left, 0px));
        padding-right: max(0.5rem, env(safe-area-inset-right, 0px));
        min-height: 32px;
    }
    .exam-topbar .bento-logo img,
    .exam-topbar .main-logo-img {
        height: 28px !important;
    }
    .exam-topbar-title {
        font-size: 0.7rem;
    }

    /* Bottom bar: ultra compact + safe area */
    .exam-bottom-bar {
        padding: 0.2rem 0.5rem;
        padding-left: max(0.5rem, env(safe-area-inset-left, 0px));
        padding-right: max(0.5rem, env(safe-area-inset-right, 0px));
        padding-bottom: max(0.2rem, env(safe-area-inset-bottom, 0px));
        min-height: 32px;
    }
    .exam-nav-btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.7rem;
    }

    /* Question area: take max space */
    .exam-question-card {
        padding: 0.5rem 0.75rem;
    }
    .exam-question-text {
        font-size: 0.95rem !important;
        line-height: 1.5 !important;
    }
    .exam-option {
        padding: 0.45rem 0.65rem !important;
        font-size: 0.85rem !important;
    }
    .exam-option .opt-text {
        font-size: 0.85rem !important;
    }
    .exam-question-header {
        margin-bottom: 0.5rem;
    }

    /* Sidebar drawer — shorter in landscape */
    .exam-sidebar.overlay-drawer {
        height: 70vh;
        max-height: 70vh;
    }

    /* Rotate overlay — hide in landscape (already rotated) */
    #rotate-phone-overlay {
        display: none !important;
    }
}