.mock-exam-page {
    --mock-danger: #ef4444;
    --mock-danger-dark: #dc2626;
    --mock-danger-soft: rgba(239, 68, 68, 0.15);
    display: flex;
    flex-direction: column;
    gap: var(--space-7);
    padding-bottom: var(--space-8);
}

.mock-exam-hero {
    background: linear-gradient(130deg, rgba(8, 23, 41, 0.92), rgba(37, 99, 235, 0.25)),
        url("../../uploads/images/practice-background.svg") center/cover no-repeat;
    position: relative;
    overflow: hidden;
}

.mock-exam-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(2, 6, 23, 0.65), rgba(2, 6, 23, 0.15));
    pointer-events: none;
}

.mock-exam-hero .hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.mock-exam-hero .hero-content h1 {
    font-size: clamp(2rem, 3vw, 3rem);
    margin-bottom: var(--space-4);
}

.mock-exam-hero .hero-content p {
    line-height: 1.7;
}

.hero-tip {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    max-width: 320px;
    box-shadow: var(--shadow-sm);
}

.mock-hero-metrics {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-5);
    flex-wrap: wrap;
}

.mock-hero-metric {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 18px;
    padding: 0.85rem 1.25rem;
    display: grid;
    gap: 0.35rem;
    min-width: 130px;
}

.mock-hero-metric span {
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
}

.mock-hero-metric strong {
    font-size: 1.5rem;
    color: #fff;
}

.mock-exam-setup,
.mock-exam-active,
.mock-exam-results {
    width: min(1100px, 92%);
    margin: 0 auto;
    padding: clamp(24px, 4vw, 40px);
    display: grid;
    gap: var(--space-6);
    border-radius: var(--radius-lg);
    border: 1px solid var(--card-border);
    background: var(--card-bg);
    box-shadow: var(--shadow-sm);
}

.mock-exam-results {
    background: var(--color-surface-muted);
}

.mock-exam-page .section-title {
    display: grid;
    gap: var(--space-2);
}

.mock-exam-page .section-title h2 {
    font-size: clamp(1.5rem, 2.6vw, 2.2rem);
}

.mock-exam-page .section-title p {
    color: var(--text-muted);
}

.mock-exam-grid {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.mock-exam-card {
    background: var(--color-surface-muted);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    text-align: left;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    display: grid;
    gap: var(--space-4);
    min-height: 220px;
}

.mock-exam-card:hover,
.mock-exam-card.is-active {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.mock-exam-card:focus-visible {
    outline: 3px solid var(--color-ring);
    outline-offset: 3px;
}

.mock-card-header {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    align-items: flex-start;
}

.mock-card-header h3 {
    margin-bottom: 0.3rem;
}

.mock-card-badge {
    background: rgba(59, 130, 246, 0.12);
    color: var(--text-dark);
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: 999px;
    padding: 0.3rem 0.85rem;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
    font-weight: 600;
}

.mock-exam-card ul {
    margin: 0;
    padding-left: 1.1rem;
    display: grid;
    gap: 0.45rem;
    color: var(--text-muted);
}

.mock-exam-field {
    display: grid;
    gap: 0.5rem;
    background: var(--color-surface-muted);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
}

.mock-exam-field label {
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.mock-exam-field.is-hidden {
    display: none;
}

.mock-exam-rules {
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.08), rgba(59, 130, 246, 0));
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    border: 1px solid rgba(59, 130, 246, 0.2);
    display: grid;
    gap: var(--space-4);
}

.mock-rule-grid {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.mock-rule-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    display: grid;
    gap: 0.5rem;
    box-shadow: var(--shadow-sm);
}

.mock-exam-actions {
    display: flex;
    gap: var(--space-3);
    align-items: center;
    flex-wrap: wrap;
}

.mock-start-btn {
    border-radius: 999px;
    padding: 0.95rem 2.1rem;
    font-weight: 600;
}

.mock-exam-helper {
    min-height: 1.5rem;
    color: var(--text-muted);
}

.mock-exam-helper.is-error {
    color: var(--mock-danger);
}

.mock-exam-lock {
    background: var(--mock-danger-soft);
    border: 1px solid rgba(239, 68, 68, 0.4);
    border-radius: var(--radius-md);
    padding: var(--space-5);
}

.mock-exam-lock__title {
    font-weight: 600;
}

.mock-exam-status {
    display: flex;
    justify-content: space-between;
    gap: var(--space-5);
    align-items: center;
    flex-wrap: wrap;
    background: var(--color-surface-muted);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.mock-exam-timer {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    display: grid;
    gap: 0.35rem;
    min-width: 180px;
    text-align: center;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-sm);
}

.mock-exam-question {
    background: var(--card-bg);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    border: 1px solid var(--card-border);
    font-size: 1.05rem;
    line-height: 1.7;
    box-shadow: var(--shadow-sm);
}

.mock-exam-answers {
    display: grid;
    gap: var(--space-3);
}

.mock-answer {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    text-align: left;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.mock-answer:hover {
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-1px);
}

.mock-answer:focus-visible {
    outline: 3px solid var(--color-ring);
    outline-offset: 2px;
}

.mock-answer.is-selected {
    border-color: rgba(59, 130, 246, 0.8);
    background: rgba(59, 130, 246, 0.12);
    box-shadow: var(--shadow-sm);
}

.mock-answer.is-disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.mock-exam-note {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.mock-exam-transition {
    position: fixed;
    inset: 0;
    z-index: 50;
    background: rgba(15, 23, 42, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms ease;
}

.mock-exam-transition.is-visible {
    opacity: 1;
    pointer-events: auto;
}

.mock-exam-transition__card {
    background: #fff;
    color: #0f172a;
    border-radius: var(--radius-lg);
    padding: 24px 28px;
    width: min(420px, 90vw);
    text-align: center;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.25);
    display: grid;
    gap: 10px;
}

.mock-exam-transition__badge {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #2563eb;
}

.mock-exam-transition__title {
    font-size: 1.4rem;
    font-weight: 700;
}

.mock-exam-transition__sub {
    color: #475569;
    font-size: 0.95rem;
}

.mock-exam-nav {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    border-top: 1px solid var(--card-border);
    padding-top: var(--space-4);
}

.mock-prev-btn {
    border-color: var(--card-border);
}

.mock-next-btn {
    background: rgba(59, 130, 246, 0.12);
    border-color: rgba(59, 130, 246, 0.35);
    color: var(--text-dark);
}

.mock-next-btn:hover {
    border-color: rgba(59, 130, 246, 0.6);
    color: var(--text-dark);
}

.mock-submit-btn {
    background: var(--mock-danger);
    border-color: transparent;
    color: #fff;
    box-shadow: var(--shadow-sm);
}

.mock-submit-btn:hover {
    background: var(--mock-danger-dark);
}

.mock-submit-btn:disabled,
.mock-submit-confirm:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.mock-exam-page .primary-btn:focus-visible,
.mock-exam-page .secondary-btn:focus-visible,
.mock-exam-page .ghost-btn:focus-visible {
    outline: 3px solid var(--color-ring);
    outline-offset: 2px;
}

.mock-results-grid {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.mock-results-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    display: grid;
    gap: var(--space-3);
    box-shadow: var(--shadow-sm);
}

.mock-results-summary,
.mock-results-review {
    display: grid;
    gap: 0.75rem;
}

.mock-certificate-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-top: var(--space-3);
    border-top: 1px dashed rgba(148, 163, 184, 0.35);
}

.mock-certificate-actions .primary-btn {
    align-self: flex-start;
}

.mock-results-summary .mock-summary-row {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 0.35rem 0;
    border-bottom: 1px dashed rgba(148, 163, 184, 0.3);
}

.mock-results-summary .mock-summary-row:last-child {
    border-bottom: none;
}

.mock-results-card--leaderboard {
    gap: var(--space-4);
}

.mock-leaderboard__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.mock-leaderboard__tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.mock-leaderboard__tab {
    border: 1px solid var(--card-border);
    background: transparent;
    color: var(--text-dark);
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.mock-leaderboard__tab:hover {
    border-color: rgba(59, 130, 246, 0.5);
    color: var(--color-primary);
}

.mock-leaderboard__tab.is-active {
    background: var(--color-primary);
    border-color: transparent;
    color: #fff;
    box-shadow: var(--shadow-sm);
}

.mock-leaderboard__cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    border: 1px dashed var(--card-border);
    background: var(--card-bg);
}

.mock-leaderboard__cta p {
    margin: 0;
    color: var(--text-muted);
}

.mock-leaderboard__table {
    display: grid;
    gap: 10px;
}

.mock-leaderboard__row {
    display: grid;
    grid-template-columns: 60px 1.4fr 0.9fr 1fr;
    gap: var(--space-3);
    align-items: center;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    border: 1px solid var(--card-border);
    background: var(--color-surface-muted);
    font-size: 0.95rem;
}

.mock-leaderboard__row--head {
    background: transparent;
    border: none;
    padding: 0 4px;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.mock-leaderboard__rank {
    font-weight: 700;
}

.mock-leaderboard__score {
    font-weight: 600;
}

.mock-leaderboard__exam {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.mock-leaderboard__tag {
    display: inline-flex;
    padding: 3px 8px;
    border-radius: 999px;
    border: 1px solid var(--card-border);
    background: rgba(59, 130, 246, 0.12);
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.mock-leaderboard__row.is-me {
    border-color: rgba(59, 130, 246, 0.45);
    background: rgba(59, 130, 246, 0.1);
}

.mock-review-shell {
    display: grid;
    gap: var(--space-4);
}

.mock-review-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.95rem;
    color: var(--text-muted);
}

.mock-review-status {
    padding: 0.2rem 0.8rem;
    border-radius: 999px;
    background: rgba(34, 197, 94, 0.16);
    color: #15803d;
    border: 1px solid rgba(34, 197, 94, 0.35);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.mock-review-status.is-incorrect {
    background: rgba(239, 68, 68, 0.16);
    color: #b91c1c;
    border-color: rgba(239, 68, 68, 0.35);
}

[data-theme="dark"] .mock-review-status {
    color: #bbf7d0;
    border-color: rgba(34, 197, 94, 0.5);
}

[data-theme="dark"] .mock-review-status.is-incorrect {
    color: #fecaca;
    border-color: rgba(248, 113, 113, 0.6);
}

.mock-review-question {
    background: var(--color-surface-muted);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    border: 1px solid var(--card-border);
}

.mock-review-actions {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.mock-review-details {
    background: var(--color-surface-muted);
    border-radius: var(--radius-md);
    border: 1px solid var(--card-border);
    padding: 0.85rem 1rem;
}

.mock-review-details summary {
    cursor: pointer;
    font-weight: 600;
}

.mock-review-details__body {
    margin-top: 0.75rem;
    display: grid;
    gap: 0.5rem;
}

.mock-review-explanation.hide {
    display: none;
}

.mock-breakdown-section {
    margin-bottom: var(--space-5);
}

.mock-breakdown-grid {
    display: grid;
    gap: 0.6rem;
}

.mock-breakdown-row {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3);
    font-size: 0.95rem;
    padding: 0.35rem 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.mock-breakdown-row:last-child {
    border-bottom: none;
}

.mock-submit-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--overlay);
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    z-index: 1300;
}

.mock-submit-modal.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.mock-submit-modal__card {
    width: min(480px, 92vw);
    background: var(--card-bg);
    color: var(--text-dark);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--card-border);
    display: grid;
    gap: 14px;
}

.mock-submit-modal__actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.mock-submit-confirm {
    background: var(--mock-danger);
    border-color: transparent;
}

.mock-submit-confirm:hover {
    background: var(--mock-danger-dark);
}

@media (max-width: 900px) {
    .mock-exam-hero .hero-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-tip {
        max-width: 100%;
    }
}

@media (max-width: 720px) {
    .mock-exam-setup,
    .mock-exam-active,
    .mock-exam-results {
        width: min(100%, 94%);
        padding: 22px;
    }

    .mock-exam-status {
        align-items: flex-start;
    }

    .mock-exam-nav {
        flex-direction: column;
        align-items: stretch;
    }

    .mock-leaderboard__cta {
        flex-direction: column;
        align-items: flex-start;
    }

    .mock-leaderboard__row {
        grid-template-columns: 40px 1fr;
        gap: 6px 12px;
    }

    .mock-leaderboard__row--head {
        display: none;
    }

    .mock-leaderboard__score,
    .mock-leaderboard__exam {
        grid-column: 2 / -1;
    }

    .mock-submit-modal__actions {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 600px) {
    .mock-hero-metrics {
        flex-direction: column;
        align-items: stretch;
    }

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