/* つるかめ実験ラボ 共通スタイル (Khan型・トークン準拠) */

.page-container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 48px 20px 72px;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
    margin: 0 0 10px;
}

.page-description {
    font-size: 1.02rem;
    color: var(--color-text-secondary);
    line-height: 1.85;
    margin: 0;
}

.lab-intro {
    max-width: 720px;
    margin: 0 auto 28px;
    text-align: center;
}

.lab-steps-nav {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.lab-steps-nav span {
    font-size: 0.82rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--color-bg-secondary, #f5f7fa);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.lab-steps-nav span.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.lab-card {
    background: var(--color-card-bg, #fff);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg, 12px);
    box-shadow: var(--shadow-premium, 0 1px 4px rgba(0, 0, 0, 0.06));
    padding: 28px 24px;
    margin: 0 auto 24px;
    max-width: 860px;
}

.lab-card.locked {
    opacity: 0.45;
    pointer-events: none;
    user-select: none;
}

.lab-card h2 {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0 0 6px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.lab-step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 700;
    flex-shrink: 0;
}

.lab-question {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.7;
    margin: 14px 0 18px;
    padding: 16px 18px;
    background: var(--color-bg-secondary, #f5f7fa);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 8px 8px 0;
}

.lab-choices {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.lab-choice {
    padding: 14px 18px;
    font-size: 0.98rem;
    font-weight: 600;
    text-align: left;
    background: var(--color-card-bg, #fff);
    color: var(--color-text);
    border: 2px solid var(--color-border);
    border-radius: 10px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}

.lab-choice:hover:not(:disabled) {
    border-color: var(--color-primary);
}

.lab-choice.selected {
    border-color: var(--color-primary);
    background: rgba(24, 101, 242, 0.07);
}

.lab-choice:disabled {
    cursor: default;
}

.lab-hint {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-top: 12px;
}

/* 実験エリア */
.lab-stage-wrap {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.lab-canvas-box {
    flex: 1 1 380px;
    min-width: 0;
}

#labCanvas {
    width: 100%;
    height: auto;
    display: block;
    background: #f8fafc;
    border: 1px solid var(--color-border);
    border-radius: 10px;
}

[data-theme="dark"] #labCanvas {
    background: #10151c;
}

.lab-controls {
    flex: 1 1 240px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.lab-slider-row label {
    display: flex;
    justify-content: space-between;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.lab-slider-row output {
    color: var(--color-primary);
    font-weight: 700;
}

.lab-slider-row input[type="range"] {
    width: 100%;
    accent-color: var(--color-primary);
}

.lab-run-btn {
    padding: 13px 20px;
    font-size: 1rem;
    font-weight: 700;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.18);
    transition: opacity 0.15s;
}

.lab-run-btn:hover:not(:disabled) {
    opacity: 0.9;
}

.lab-run-btn:disabled {
    opacity: 0.5;
    cursor: default;
}

.lab-measure {
    padding: 14px 16px;
    background: var(--color-bg-secondary, #f5f7fa);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-size: 0.92rem;
    line-height: 1.6;
}

.lab-measure strong {
    font-size: 1.3rem;
    color: var(--color-primary);
}

/* 記録テーブル */
.lab-trials {
    width: 100%;
    border-collapse: collapse;
    margin-top: 18px;
    font-size: 0.88rem;
}

.lab-trials th,
.lab-trials td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
}

.lab-trials th {
    font-weight: 700;
    color: var(--color-text-secondary);
    font-size: 0.8rem;
}

.lab-result-cta {
    margin-top: 20px;
    text-align: center;
}

.lab-result-cta .lab-hint {
    margin-bottom: 10px;
}

/* 結果 */
.lab-verdict {
    padding: 18px 20px;
    border-radius: 10px;
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 16px;
    border: 1px solid;
}

.lab-verdict.hit {
    background: rgba(22, 163, 74, 0.07);
    border-color: rgba(22, 163, 74, 0.4);
}

.lab-verdict.miss {
    background: rgba(234, 88, 12, 0.07);
    border-color: rgba(234, 88, 12, 0.4);
}

.lab-verdict .lab-verdict-title {
    font-weight: 800;
    font-size: 1.1rem;
    margin-bottom: 6px;
}

.lab-explain {
    font-size: 0.95rem;
    line-height: 1.9;
}

.lab-explain p {
    margin: 0 0 12px;
}

/* 一覧ページのカード */
.lab-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(380px, 100%), 1fr));
    gap: 20px;
    margin-top: 8px;
}

.lab-list-card {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    padding: 26px 24px;
    background: var(--color-card-bg, #fff);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg, 12px);
    box-shadow: var(--shadow-premium, 0 1px 4px rgba(0, 0, 0, 0.06));
    text-decoration: none;
    color: var(--color-text);
    transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.lab-list-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
}

.lab-list-card__icon {
    font-size: 1.7rem;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(24, 101, 242, 0.08);
    border-radius: 14px;
    flex-shrink: 0;
}

.lab-list-card__title {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 6px;
}

.lab-list-card__desc {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
}

.lab-list-card__meta {
    margin-top: 8px;
    font-size: 0.78rem;
    color: var(--color-text-secondary);
}

@media (max-width: 600px) {
    .lab-card {
        padding: 20px 16px;
    }
}