.quizitof-app,
.quizitof-app * {
    box-sizing: border-box;
}

.quizitof-app {
    --qzof-primary: #16c5df;
    --qzof-secondary: #1f2a44;
    --qzof-radius: 8px;
    --qzof-font: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    font-family: var(--qzof-font);
    color: #17212f;
    width: 100%;
}

.qzof-list-page,
.qzof-instructions-wrap,
.qzof-result-wrap,
.qzof-leaderboard-wrap,
.qzof-dashboard-wrap,
.qzof-attempt-wrap,
.qzof-message-wrap {
    position: relative;
    left: 50%;
    transform: translateX(-50%);
    width: 1400px !important;
    max-width: calc(100vw - 48px) !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
}

.quizitof-app a,
.quizitof-app button,
.quizitof-app input,
.quizitof-app select,
.quizitof-app textarea {
    font-family: inherit;
}

.quizitof-app .qzof-btn {
    border: 0;
    border-radius: var(--qzof-radius);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    text-decoration: none;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.quizitof-app .qzof-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.quizitof-app .qzof-btn-primary {
    background: var(--qzof-primary);
    color: #fff;
}

.quizitof-app .qzof-btn-danger {
    background: #e54872;
    color: #fff;
}

.quizitof-app .qzof-btn-light {
    background: #f2f4f8;
    color: #233247;
}

.quizitof-app .qzof-btn:hover {
    transform: translateY(-1px);
}

.quizitof-app .qzof-loading,
.quizitof-app .qzof-empty-card,
.quizitof-app .qzof-message-card {
    background: #fff;
    border-radius: var(--qzof-radius);
    border: 1px solid #e6ebf1;
    padding: 20px;
}

.quizitof-app.qzof-no-select,
.quizitof-app.qzof-no-select * {
    user-select: none;
}

.qzof-list-page {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 20px;
    align-items: start;
}

.qzof-list-sidebar {
    background: #f8fafc;
    border: 1px solid #e3e9ef;
    border-radius: var(--qzof-radius);
    overflow: hidden;
}

.qzof-list-sidebar h3 {
    margin: 0;
    padding: 16px;
    color: #fff;
    font-size: 16px;
    background: linear-gradient(135deg, var(--qzof-primary), #22b6d5);
}

.qzof-list-sidebar ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.qzof-list-sidebar li {
    border-bottom: 1px solid #e5ebf1;
}

.qzof-list-sidebar a {
    display: block;
    text-decoration: none;
    color: #22344a;
    padding: 14px 16px;
    font-size: 14px;
}

.qzof-list-sidebar li.is-active a {
    color: var(--qzof-primary);
    font-weight: 700;
}

.qzof-list-main {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.qzof-quiz-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 18px;
    background: #fff;
    border-radius: var(--qzof-radius);
    border: 1px solid #e5ebf2;
    padding: 20px;
    align-items: center;
}

.qzof-quiz-card h4 {
    margin: 8px 0 10px;
    font-size: 22px;
    line-height: 1.35;
    color: #132036;
}

.qzof-quiz-card-badges {
    display: flex;
    align-items: center;
    gap: 8px;
}

.qzof-badge-free {
    background: #2bc66f;
    color: #fff;
    border-radius: 6px;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 700;
}

.qzof-badge-cat {
    background: #f1f4f9;
    color: #667a96;
    border-radius: 6px;
    padding: 3px 8px;
    font-size: 11px;
    text-transform: uppercase;
}

.qzof-meta-row,
.qzof-tags-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    color: #6a7c93;
    font-size: 14px;
}

.qzof-tags-row {
    margin-top: 10px;
}

.qzof-instructions-wrap {
    max-width: none;
}

.qzof-instructions-card {
    border: 1px solid #e5ebf1;
    border-radius: 16px;
    background: #fff;
    padding: 28px;
}

.qzof-instructions-card h2 {
    margin: 0;
    font-size: 48px;
    line-height: 1.15;
    letter-spacing: 0.4px;
}

.qzof-instructions-card .qzof-subtitle {
    color: #647994;
    margin: 8px 0 22px;
    font-size: 17px;
}

.qzof-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}

.qzof-info-card {
    border: 1px solid #e3e8ef;
    border-radius: 14px;
    background: #fafbfe;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.qzof-info-card strong {
    font-size: 26px;
}

.qzof-info-card span {
    color: #5f748f;
}

.qzof-rules-list {
    margin: 0;
    padding-left: 22px;
    display: grid;
    gap: 10px;
    font-size: 16px;
    line-height: 1.6;
}

.qzof-start-form {
    margin-top: 22px;
    border-top: 1px solid #e7ecf3;
    padding-top: 18px;
}

.qzof-start-fields {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.qzof-start-fields label {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.qzof-start-fields input {
    border: 1px solid #d7e0ea;
    border-radius: 10px;
    height: 42px;
    padding: 0 12px;
    background: #fff;
}

.qzof-accept-row {
    margin-top: 18px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.qzof-take-test {
    margin-top: 14px;
    min-width: 170px;
}

.qzof-attempt-wrap {
    position: relative;
    border: 1px solid #e3e9f1;
    border-radius: 12px;
    background: #fff;
    overflow: hidden;
}

.qzof-attempt-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    border-bottom: 1px solid #e5ebf2;
}

.qzof-attempt-topbar h3 {
    margin: 0;
    font-size: 24px;
}

.qzof-progress-text {
    display: block;
    color: #7286a0;
    font-size: 13px;
    margin-top: 5px;
}

.qzof-topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.qzof-timer {
    font-weight: 700;
    font-size: 20px;
    color: #1f3351;
    min-width: 112px;
    text-align: right;
}

.qzof-attempt-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 250px;
}

.qzof-question-panel {
    padding: 20px;
    min-height: 440px;
}

.qzof-question-shell h4 {
    margin: 0 0 10px;
    font-size: 22px;
}

.qzof-question-text {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 18px;
}

.qzof-options-grid {
    display: grid;
    gap: 12px;
}

.qzof-option-card {
    border: 1px solid #dae3ee;
    border-radius: 10px;
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: border-color 0.15s ease, background 0.15s ease;
}

.qzof-option-card:hover {
    border-color: var(--qzof-primary);
    background: #f7feff;
}

.qzof-option-label {
    width: 24px;
    height: 24px;
    border-radius: 99px;
    background: #f2f4f7;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #4f647d;
    font-weight: 700;
    flex-shrink: 0;
}

.qzof-option-content {
    flex: 1;
    font-size: 16px;
    line-height: 1.5;
}

.qzof-question-actions {
    margin-top: 24px;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.qzof-palette-panel {
    border-left: 1px solid #e4e9f1;
    padding: 14px;
    background: #f9fbfe;
}

.qzof-palette-panel h4 {
    margin: 4px 0 12px;
}

.qzof-palette-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 8px;
}

.qzof-palette-item {
    min-height: 34px;
    border-radius: 8px;
    border: 1px solid #d4deea;
    background: #fff;
    color: #334a67;
    cursor: pointer;
    font-weight: 600;
}

.qzof-palette-item.is-not_visited {
    background: #fff;
}

.qzof-palette-item.is-visited {
    background: #f2f6fb;
}

.qzof-palette-item.is-answered {
    background: #27c188;
    color: #fff;
    border-color: #27c188;
}

.qzof-palette-item.is-review {
    background: #ffb340;
    color: #fff;
    border-color: #ffb340;
}

.qzof-palette-legend {
    display: grid;
    gap: 6px;
    margin-top: 12px;
    font-size: 13px;
    color: #5f7590;
}

.qzof-palette-legend span::before {
    content: '';
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 99px;
    margin-right: 6px;
    vertical-align: middle;
    background: #fff;
    border: 1px solid #d4deea;
}

.qzof-palette-legend .is-visited::before {
    background: #f2f6fb;
}

.qzof-palette-legend .is-answered::before {
    background: #27c188;
    border-color: #27c188;
}

.qzof-palette-legend .is-review::before {
    background: #ffb340;
    border-color: #ffb340;
}

.qzof-watermark {
    position: absolute;
    inset: auto auto 10px 10px;
    pointer-events: none;
    font-size: 12px;
    color: rgba(22, 41, 66, 0.35);
    letter-spacing: 1px;
    text-transform: uppercase;
    display: none;
}

.qzof-result-wrap,
.qzof-leaderboard-wrap,
.qzof-dashboard-wrap {
    max-width: none;
}

.qzof-result-card,
.qzof-leaderboard-card,
.qzof-dashboard-stats,
.qzof-dashboard-list {
    border: 1px solid #e5ebf1;
    border-radius: 12px;
    background: #fff;
    padding: 20px;
}

.qzof-result-card h2 {
    margin: 0 0 8px;
}

.qzof-result-metrics {
    margin-top: 14px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.qzof-result-metrics div {
    background: #f8fbfe;
    border: 1px solid #e2eaf4;
    border-radius: 10px;
    padding: 14px;
}

.qzof-result-metrics strong {
    display: block;
    font-size: 24px;
    margin-bottom: 3px;
}

.qzof-result-breakdown {
    margin: 16px 0 0;
    padding-left: 16px;
    display: grid;
    gap: 6px;
}

.qzof-leaderboard-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.qzof-leaderboard-card table,
.qzof-dashboard-list table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}

.qzof-leaderboard-card th,
.qzof-leaderboard-card td,
.qzof-dashboard-list th,
.qzof-dashboard-list td {
    text-align: left;
    padding: 10px;
    border-bottom: 1px solid #ecf1f7;
}

.qzof-dashboard-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 14px;
}

.qzof-dashboard-stats div {
    background: #f8fbfe;
    border-radius: 8px;
    padding: 12px;
}

.qzof-dashboard-stats strong {
    display: block;
    font-size: 24px;
}

@media (max-width: 1200px) {
    .qzof-instructions-card h2 {
        font-size: 40px;
    }

    .qzof-quiz-card h4,
    .qzof-question-shell h4 {
        font-size: 20px;
    }
}

@media (max-width: 992px) {
    .qzof-list-page {
        grid-template-columns: 1fr;
    }

    .qzof-attempt-body {
        grid-template-columns: 1fr;
    }

    .qzof-palette-panel {
        border-left: 0;
        border-top: 1px solid #e4e9f1;
    }

    .qzof-info-grid,
    .qzof-start-fields,
    .qzof-result-metrics {
        grid-template-columns: repeat(2, 1fr);
    }

    .qzof-instructions-card h2 {
        font-size: 34px;
    }
}

@media (max-width: 768px) {

    .qzof-list-page,
    .qzof-instructions-wrap,
    .qzof-result-wrap,
    .qzof-leaderboard-wrap,
    .qzof-dashboard-wrap,
    .qzof-attempt-wrap,
    .qzof-message-wrap {
        left: 50%;
        transform: translateX(-50%);
        width: calc(100vw - 24px) !important;
        max-width: calc(100vw - 24px) !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    .qzof-instructions-card,
    .qzof-question-panel,
    .qzof-result-card,
    .qzof-leaderboard-card,
    .qzof-dashboard-list,
    .qzof-dashboard-stats {
        padding: 14px;
    }

    .qzof-attempt-topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .qzof-topbar-right {
        width: 100%;
        justify-content: space-between;
    }

    .qzof-info-grid,
    .qzof-start-fields,
    .qzof-result-metrics,
    .qzof-dashboard-stats {
        grid-template-columns: 1fr;
    }

    .qzof-quiz-card {
        grid-template-columns: 1fr;
    }

    .qzof-palette-grid {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }

    .qzof-question-text {
        font-size: 18px;
    }

    .qzof-question-actions {
        display: grid;
        grid-template-columns: 1fr;
    }
}