/* ===================================================
   红绿/蓝黄色盲测试 - 样式文件
   =================================================== */

/* ---------- 容器 ---------- */
.cbt-container {
    max-width: 520px;
    margin: 0 auto;
    box-sizing: border-box;
}

/* ---------- 屏幕切换 ---------- */
.cbt-screen {
    display: none;
}
.cbt-screen.active {
    display: block;
    animation: cbtFadeIn 0.25s ease;
}

@keyframes cbtFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---------- 分区标签 ---------- */
.cbt-section-label {
    font-size: 12px;
    font-weight: 600;
    color: #aaa;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin: 10px 0 5px;
    user-select: none;
}

/* ---------- 欢迎页 ---------- */
.cbt-welcome-desc {
    font-size: 13px;
    color: #777;
    line-height: 1.6;
    margin: 0 0 10px;
}

/* ---------- 类型选择按钮 ---------- */
.cbt-type-selector {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.cbt-type-btn {
    flex: 1;
    min-width: 130px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 12px 10px;
    border: 2px solid #dde3ec;
    border-radius: 12px;
    background: #f7f9fb;
    cursor: pointer;
    transition: border-color 0.18s, background 0.18s, transform 0.12s, box-shadow 0.18s;
    text-align: center;
}

.cbt-type-btn:hover {
    border-color: #4f8ef7;
    background: #eef3ff;
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(79, 142, 247, 0.15);
}

.cbt-type-btn.selected {
    border-color: #4f8ef7;
    background: linear-gradient(135deg, #eef3ff, #f5f8ff);
    box-shadow: 0 2px 10px rgba(79, 142, 247, 0.2);
}

.cbt-type-icon {
    font-size: 22px;
    line-height: 1;
}

.cbt-type-name {
    font-size: 14px;
    font-weight: 600;
    color: #333;
}

.cbt-type-desc {
    font-size: 11px;
    color: #999;
}

/* ---------- 测试须知 ---------- */
.cbt-instructions ul {
    margin: 0;
    padding: 0 0 0 4px;
    list-style: none;
}

.cbt-instructions li {
    font-size: 13px;
    color: #666;
    line-height: 1.7;
    padding: 2px 0;
}

/* ---------- 开始按钮 ---------- */
.cbt-start-btn {
    display: block;
    width: 100%;
    margin-top: 12px;
    padding: 12px 0;
    background: linear-gradient(135deg, #4f8ef7, #3a72d8);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 0.04em;
    transition: opacity 0.2s, transform 0.12s, box-shadow 0.2s;
    box-shadow: 0 3px 12px rgba(79, 142, 247, 0.3);
}

.cbt-start-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 5px 16px rgba(79, 142, 247, 0.38);
}

.cbt-start-btn:active {
    transform: translateY(0) scale(0.98);
}

/* ---------- 测试页：进度区 ---------- */
.cbt-test-header {
    margin-bottom: 8px;
}

.cbt-progress-info {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}


/* ---------- 退出测试按钮 ---------- */
.cbt-exit-btn {
    padding: 3px 8px;
    border: 1px solid #dde3ec;
    border-radius: 6px;
    background: #f7f9fb;
    color: #aaa;
    font-size: 11px;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
    flex-shrink: 0;
}

.cbt-exit-btn:hover {
    color: #4f8ef7;
    border-color: #4f8ef7;
    background: #eef3ff;
}

.cbt-progress-text {
    flex: 1;
    font-size: 13px;
    color: #555;
    font-weight: 500;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cbt-type-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 10px;
    color: #fff;
    letter-spacing: 0.02em;
}

.cbt-type-badge.rg {
    background: linear-gradient(90deg, #e53935, #43a047);
}

.cbt-type-badge.by {
    background: linear-gradient(90deg, #1e88e5, #f9a825);
}

.cbt-progress-track {
    background: #eef0f4;
    border-radius: 4px;
    height: 5px;
    overflow: hidden;
}

.cbt-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #4f8ef7, #7ab3f9);
    border-radius: 4px;
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 图板 ---------- */
.cbt-plate-wrap {
    width: 100%;
    max-width: 380px;
    margin: 6px auto;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.14), 0 1px 6px rgba(0, 0, 0, 0.06);
    background: #e0e0e0;
    line-height: 0;
    user-select: none;
}

#plateCanvas {
    width: 100%;
    height: auto;
    display: block;
    user-select: none;
}

/* ---------- 提示（平滑展开） ---------- */
.cbt-hint {
    text-align: center;
    font-size: 12px;
    color: #4f8ef7;
    background: #eef3ff;
    border-radius: 6px;
    padding: 5px 10px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    margin: 0;
    transition: max-height 0.28s ease, opacity 0.22s, margin 0.28s;
}

.cbt-hint.visible {
    max-height: 50px;
    opacity: 1;
    margin: 4px 0 6px;
}

/* ---------- 答题区 ---------- */
.cbt-answer-area {
    margin: 6px 0;
}

.cbt-answer-label {
    font-size: 13px;
    color: #555;
    font-weight: 500;
    display: block;
    margin-bottom: 4px;
}

.cbt-answer-row {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.cbt-answer-input {
    flex: 1;
    min-width: 110px;
    padding: 9px 12px;
    border: 2px solid #dde3ec;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    color: #333;
    text-align: center;
    letter-spacing: 0.12em;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}

.cbt-answer-input:focus {
    border-color: #4f8ef7;
    box-shadow: 0 0 0 3px rgba(79, 142, 247, 0.12);
}

.cbt-answer-input:disabled {
    background: #f3f5f8;
    color: #aaa;
}

.cbt-cant-see-btn {
    padding: 9px 14px;
    border: 1.5px solid #dde3ec;
    border-radius: 8px;
    background: #f7f9fb;
    color: #666;
    font-size: 13px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.cbt-cant-see-btn:hover {
    background: #fff5ee;
    border-color: #ff9800;
    color: #e65100;
}

.cbt-cant-see-btn.active {
    background: #fff5ee;
    border-color: #ff9800;
    color: #e65100;
    font-weight: 600;
}

/* ---------- 快捷键提示 ---------- */
.cbt-shortcut-tip {
    font-size: 11px;
    color: #c0c8d8;
    margin: 2px 0 4px;
    user-select: none;
}

/* ---------- 导航按钮行 ---------- */
.cbt-nav-row {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}

.cbt-nav-btn {
    flex: 1;
    padding: 9px 0;
    border: 1.5px solid #dde3ec;
    border-radius: 8px;
    background: #f7f9fb;
    color: #555;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
}

.cbt-nav-btn:hover:not(:disabled) {
    background: #eef3ff;
    border-color: #4f8ef7;
    color: #4f8ef7;
    transform: scale(1.01);
}

.cbt-nav-btn:active:not(:disabled) {
    transform: scale(0.97);
}

.cbt-nav-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.cbt-nav-btn.next {
    background: linear-gradient(135deg, #4f8ef7, #3a72d8);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(79, 142, 247, 0.28);
}

.cbt-nav-btn.next:hover:not(:disabled) {
    opacity: 0.9;
    background: linear-gradient(135deg, #4f8ef7, #3a72d8);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(79, 142, 247, 0.38);
}

/* ---------- 结果页 ---------- */
.cbt-result-title {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.cbt-result-emoji {
    font-size: 1.5rem;
}

/* 结果卡片 */
.cbt-result-card {
    border-radius: 12px;
    padding: 12px 14px;
    margin-bottom: 8px;
    border: 1.5px solid #e4eaf5;
    background: #f7f9fb;
    transition: box-shadow 0.2s;
}

.cbt-result-card:hover {
    box-shadow: 0 2px 10px rgba(0,0,0,0.07);
}

.cbt-result-card.lvl-normal   { background: linear-gradient(160deg, #f3fff4 0%, #f7f9fb 60%); }
.cbt-result-card.lvl-mild     { background: linear-gradient(160deg, #fffcf0 0%, #f7f9fb 60%); }
.cbt-result-card.lvl-moderate { background: linear-gradient(160deg, #fff6f5 0%, #f7f9fb 60%); }
.cbt-result-card.lvl-severe   { background: linear-gradient(160deg, #fdf0f0 0%, #f7f9fb 60%); }

.cbt-result-card.rg {
    border-left: 4px solid #e53935;
}

.cbt-result-card.by {
    border-left: 4px solid #1e88e5;
}

.cbt-result-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.cbt-result-card-name {
    font-size: 14px;
    font-weight: 700;
    color: #333;
}

.cbt-result-badge {
    font-size: 12px;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 12px;
    color: #fff;
    letter-spacing: 0.03em;
}

.cbt-result-badge.normal   { background: #43a047; }
.cbt-result-badge.mild     { background: #fb8c00; }
.cbt-result-badge.moderate { background: #e53935; }
.cbt-result-badge.severe   { background: #6a1a1a; }

.cbt-result-score {
    font-size: 13px;
    color: #555;
    margin-bottom: 6px;
    font-weight: 500;
}

.cbt-score-pct {
    font-size: 12px;
    color: #888;
    margin-left: 4px;
    font-weight: 700;
    display: inline-block;
    min-width: 40px;
    text-align: left;
}

.cbt-score-track {
    background: #e4eaf5;
    border-radius: 4px;
    height: 7px;
    overflow: hidden;
    margin-bottom: 6px;
}

.cbt-score-fill {
    height: 100%;
    border-radius: 4px;
    width: 0%;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.cbt-score-fill.normal   { background: linear-gradient(90deg, #43a047, #66bb6a); }
.cbt-score-fill.mild     { background: linear-gradient(90deg, #fb8c00, #ffa726); }
.cbt-score-fill.moderate { background: linear-gradient(90deg, #e53935, #ef5350); }
.cbt-score-fill.severe   { background: linear-gradient(90deg, #6a1a1a, #b71c1c); }

.cbt-result-desc {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

/* ---------- 复制结果按钮 ---------- */
.cbt-copy-result-btn {
    display: block;
    width: 100%;
    padding: 9px 0;
    margin: 6px 0;
    background: #f7f9fb;
    color: #666;
    border: 1.5px solid #dde3ec;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
}

.cbt-copy-result-btn:hover {
    background: #eef3ff;
    border-color: #4f8ef7;
    color: #4f8ef7;
}

.cbt-copy-result-btn:active {
    transform: scale(0.98);
}

/* ---------- 答题详情折叠区 ---------- */
.cbt-detail-section {
    margin: 8px 0;
}

.cbt-detail-toggle-btn {
    width: 100%;
    padding: 8px 0;
    border: 1.5px solid #dde3ec;
    border-radius: 8px;
    background: #f7f9fb;
    color: #666;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.cbt-detail-toggle-btn:hover {
    background: #eef3ff;
    border-color: #4f8ef7;
    color: #4f8ef7;
}

.cbt-detail-table-wrap {
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #eaeff5;
    max-height: 0;
    margin-top: 0;
    transition: max-height 0.32s ease, margin-top 0.28s ease;
}

.cbt-detail-table-wrap.open {
    max-height: 620px;
    margin-top: 6px;
}

.cbt-detail-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.cbt-detail-table th {
    background: #f0f4fa;
    color: #555;
    font-weight: 600;
    padding: 7px 10px;
    text-align: left;
    border-bottom: 1px solid #e4eaf5;
}

.cbt-detail-table td {
    padding: 7px 10px;
    border-bottom: 1px solid #f0f4fa;
    color: #444;
}

.cbt-detail-table tr:last-child td {
    border-bottom: none;
}

.cbt-detail-table tr.correct td { background: #f0faf1; }
.cbt-detail-table tr.wrong   td { background: #fff8f0; }

.cbt-detail-table td.icon {
    font-size: 15px;
    font-weight: 700;
}

.cbt-detail-table tr.correct td.icon { color: #43a047; }
.cbt-detail-table tr.wrong   td.icon { color: #e53935; }

/* ---------- 免责声明 ---------- */
.cbt-disclaimer {
    font-size: 11px;
    color: #aaa;
    text-align: center;
    line-height: 1.6;
    margin: 10px 0;
    padding: 8px 10px;
    background: #fafbfc;
    border-radius: 6px;
    border: 1px solid #eee;
}

/* ---------- 重新测试按钮 ---------- */
.cbt-retry-btn {
    display: block;
    width: 100%;
    padding: 11px 0;
    margin-top: 4px;
    background: #f7f9fb;
    color: #4f8ef7;
    border: 2px solid #4f8ef7;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, transform 0.1s;
}

.cbt-retry-btn:hover {
    background: #eef3ff;
    transform: scale(1.01);
}

.cbt-retry-btn:active {
    transform: scale(0.97);
}

/* ---------- Toast ---------- */
.cbt-toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.cbt-toast {
    padding: 9px 18px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    color: #fff;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.25s, transform 0.25s;
    pointer-events: auto;
    cursor: pointer;
    max-width: 280px;
    word-break: break-word;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.cbt-toast.show    { opacity: 1; transform: translateY(0); }
.cbt-toast.success { background: #4caf50; }
.cbt-toast.warning { background: #ff9800; }
.cbt-toast.error   { background: #f44336; }

/* ---------- 响应式：平板端 ≤768px ---------- */
@media (max-width: 768px) {
    .cbt-container {
        max-width: 100%;
    }
    .cbt-plate-wrap {
        max-width: 340px;
    }
}

/* ---------- 响应式：手机端 ≤640px ---------- */
@media (max-width: 640px) {
    .cbt-type-selector {
        flex-direction: column;
    }
    .cbt-type-btn {
        flex-direction: row;
        justify-content: flex-start;
        gap: 10px;
        text-align: left;
        min-width: unset;
    }
    .cbt-plate-wrap {
        max-width: 300px;
    }
    .cbt-answer-row {
        flex-direction: column;
    }
    .cbt-cant-see-btn {
        width: 100%;
    }
    .cbt-nav-btn {
        font-size: 13px;
    }
}

/* ---------- 响应式：小手机端 ≤480px ---------- */
@media (max-width: 480px) {
    .cbt-plate-wrap {
        max-width: 260px;
    }
    .cbt-shortcut-tip {
        display: none;
    }
    .cbt-progress-text {
        font-size: 12px;
    }
    .cbt-result-title {
        font-size: 1.1rem;
    }
}