.practice-jump-bar {
    position: fixed;
    left: 50%;
    bottom: 16px;
    z-index: 1000;
    width: min(1000px, calc(100vw - 32px));
    transform: translateX(-50%);
    padding: 10px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 10px 35px rgba(15, 23, 42, 0.24);
    backdrop-filter: blur(8px);
}

.practice-jump-scroll {
    display: flex;
    align-items: center;
    gap: 7px;
    overflow-x: auto;
    scrollbar-width: thin;
    padding-bottom: 2px;
}

.practice-jump-legend {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    flex: 0 0 auto;
    margin-right: 5px;
    color: #475569;
    font-size: 0.78rem;
    white-space: nowrap;
}

.practice-jump-legend-dot {
    width: 11px;
    height: 11px;
    border: 1px solid transparent;
    border-radius: 999px;
}

.practice-jump {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 38px;
    min-height: 38px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-weight: 750;
    text-decoration: none;
    transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.practice-jump:hover,
.practice-jump:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.16);
}

.practice-jump.unanswered,
.practice-jump-legend-dot.unanswered {
    border-color: #cbd5e1;
    background: #e5e7eb;
    color: #374151;
}

.practice-jump.correct,
.practice-jump-legend-dot.correct {
    border-color: #93c5fd;
    background: #dbeafe;
    color: #1e40af;
}

.practice-jump.wrong,
.practice-jump-legend-dot.wrong {
    border-color: #f9a8d4;
    background: #fce7f3;
    color: #9d174d;
}

.practice-jump-spacer {
    height: 82px;
}

.question-annotation {
    width: fit-content;
    max-width: 100%;
    margin: 18px auto;
}

.question-annotation-stage {
    position: relative;
    display: grid;
    width: fit-content;
    max-width: 100%;
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
}

.question-annotation-stage .question-image,
.question-annotation-stage .bank-preview-image,
.question-annotation-canvas {
    grid-area: 1 / 1;
}

.question-annotation-stage .question-image,
.question-annotation-stage .bank-preview-image {
    max-width: 100%;
    margin: 0;
    border: 0;
    border-radius: 0;
}

.question-annotation-canvas {
    z-index: 2;
    width: 100%;
    height: 100%;
    pointer-events: none;
    user-select: none;
}

.question-annotation.is-drawing .question-annotation-canvas {
    pointer-events: auto;
    touch-action: none;
    cursor: crosshair;
}

.question-annotation-tools {
    display: flex;
    width: fit-content;
    max-width: 100%;
    justify-content: flex-start;
    gap: 6px;
    align-items: center;
    margin: 0 0 8px auto;
    padding: 5px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 3px 12px rgba(15, 23, 42, 0.2);
    backdrop-filter: blur(6px);
}

.question-annotation-tools button {
    min-height: 42px;
    padding: 7px 10px;
    border: 1px solid #b7c2d4;
    background: #fff;
    color: #172033;
    font-size: 0.9rem;
}

.question-annotation-tools button:hover,
.question-annotation-tools button:focus-visible {
    border-color: #2457d6;
    background: #edf3ff;
}

.question-annotation-tools .annotation-tool-toggle[aria-pressed="true"] {
    border-color: #2457d6;
    background: #2457d6;
    color: #fff;
}

.question-annotation-tools button:disabled {
    cursor: default;
    opacity: 0.45;
}

.question-annotation-tools button[hidden] {
    display: none;
}

.compact-answer-options {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    width: 100%;
    max-width: 520px;
    margin: 18px 0;
}

.compact-answer-options.with-help {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    max-width: 650px;
}

.compact-help-option {
    min-height: 58px;
    padding: 7px 10px;
    border: 2px solid #b42318;
    border-radius: 11px;
    background: #b42318;
    font-size: 1.05rem;
}

.compact-help-option:hover,
.compact-help-option:focus-visible {
    background: #8f1c14;
}

.compact-help-option.is-active {
    border-color: #147a4b;
    background: #147a4b;
}

.compact-help-option.is-active:hover,
.compact-help-option.is-active:focus-visible {
    background: #0f603b;
}

.compact-answer-option {
    position: relative;
    display: block;
    margin: 0;
    cursor: pointer;
}

.compact-answer-option input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.compact-answer-option span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 58px;
    border: 2px solid #b7c2d4;
    border-radius: 11px;
    background: #fff;
    color: #172033;
    font-size: 1.25rem;
    font-weight: 800;
    user-select: none;
    transition: border-color 0.12s ease, background 0.12s ease, color 0.12s ease, transform 0.12s ease;
}

.compact-answer-option:hover span {
    border-color: #8199cc;
    background: #f6f8ff;
}

.compact-answer-option input:checked + span {
    border-color: #2457d6;
    background: #2457d6;
    color: #fff;
    transform: translateY(-2px);
}

.compact-answer-option input:focus-visible + span {
    outline: 3px solid #93c5fd;
    outline-offset: 2px;
}

@media (max-width: 700px) {
    .practice-jump-bar {
        bottom: 8px;
        width: calc(100vw - 16px);
        padding: 8px;
        border-radius: 11px;
    }

    .practice-jump-legend {
        display: none;
    }

    .compact-answer-options {
        gap: 7px;
    }

    .compact-answer-option span {
        min-height: 54px;
        font-size: 1.15rem;
    }

    .question-annotation-tools button {
        min-width: 44px;
        min-height: 44px;
        padding: 6px 8px;
    }

    .question-annotation-tools .annotation-tool-toggle span {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
        white-space: nowrap;
    }
}