.clock-reading-shell {
    max-width: 1080px;
    margin: 0 auto;
    background: linear-gradient(180deg, #faf3e3 0%, #efe3c8 100%);
    border: 2px solid #9f8451;
    box-shadow: none;
}

.clock-reading-shell .game-title {
    font-size: 1.95rem;
    color: #253329;
}

.clock-reading-shell .game-subtitle {
    font-size: 1rem;
    color: #55624d;
}

.clock-play-wrap {
    background: transparent;
    border: 0;
    border-radius: 0;
    padding: 0;
}

.clock-action-lane {
    max-width: 860px;
    margin: 0 auto 0.85rem;
    padding: 0.9rem 1rem;
    border: 1px solid #ccb27a;
    border-radius: 16px;
    background: #f8efdb;
}

.clock-control-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.clock-primary-actions {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.clock-primary-actions .game-btn {
    min-width: 200px;
    min-height: 54px;
    font-size: 1.05rem;
}

.clock-difficulty-panel {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.7rem;
    flex: 1;
    min-width: 0;
}

.clock-diff-label {
    font-size: 0.95rem;
    font-weight: 800;
    color: #5b4c31;
    white-space: nowrap;
}

.clock-reading-shell .difficulty-unified {
    justify-content: flex-start;
    margin: 0;
    flex-wrap: wrap;
}

.clock-reading-shell .difficulty-unified .difficulty-btn {
    min-width: 126px;
    min-height: 48px;
    padding: 0.55rem 1rem;
    font-size: 0.92rem;
}

.clock-info-bar {
    max-width: 760px;
    margin: 0 auto 0.8rem;
}

.clock-info-bar .info-item {
    min-width: 160px;
    border: 1px solid #ccb27a;
    background: #fff8e8;
    color: #4f5a49;
    box-shadow: none;
}

.clock-stage {
    max-width: 860px;
    margin: 0 auto;
    border: 1px solid #ccb27a;
    border-radius: 22px;
    background: radial-gradient(circle at top, #fffaf0 0%, #f6ecd7 100%);
    padding: 1.2rem 1.2rem 1rem;
}

.clock-question {
    margin: 0 0 0.9rem;
    text-align: center;
    font-size: 1.75rem;
    font-weight: 800;
    color: #284034;
    letter-spacing: -0.01em;
}

.clock-question.is-correct {
    color: #1f5d45;
}

.clock-question.is-wrong {
    color: #9c3d2f;
}

#clockSvg {
    max-width: 390px;
    width: 100%;
    margin: 0 auto;
    display: block;
    filter: none;
}

.clock-face {
    fill: #fffaf0;
    stroke: #9f7f46;
    stroke-width: 10;
}

.clock-num {
    font-size: 34px;
    font-weight: 800;
    fill: #344337;
}

.clock-hour-hand {
    stroke: #253329;
    stroke-width: 10;
    stroke-linecap: round;
}

.clock-minute-hand {
    stroke: #1f5d45;
    stroke-width: 8;
    stroke-linecap: round;
}

.clock-center-dot {
    fill: #b58c45;
}

.clock-answer-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
    margin-top: 1rem;
}

.clock-answer-btn {
    border: 1px solid #cbb07a;
    background: #fff8e8;
    color: #2f382d;
    border-radius: 14px;
    min-height: 74px;
    font-size: 1.45rem;
    font-weight: 800;
    cursor: pointer;
    transition: background 0.14s ease, border-color 0.14s ease, transform 0.14s ease;
    box-shadow: none;
}

.clock-answer-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    border-color: #1f5d45;
    background: #f2e5c4;
}

.clock-answer-btn:disabled {
    opacity: 0.62;
    cursor: default;
}

.clock-answer-help {
    text-align: center;
    margin: 0.85rem 0 0;
    font-size: 0.95rem;
    color: #5a624f;
    font-weight: 700;
}

.clock-answer-help i {
    color: #8f7642;
    margin-right: 0.25rem;
}

.clock-guide-bottom {
    max-width: 860px;
    margin: 0.85rem auto 0;
}

.clock-guide-bottom p {
    margin: 0.3rem 0;
    font-size: 0.95rem;
    line-height: 1.55;
}

.clock-bottom-list {
    margin-top: 0.7rem;
}

@media (max-width: 980px) {
    .clock-control-row {
        flex-direction: column;
        align-items: stretch;
    }

    .clock-difficulty-panel {
        justify-content: flex-start;
        flex-direction: column;
        align-items: flex-start;
    }

    .clock-reading-shell .difficulty-unified {
        justify-content: flex-start;
    }
}

@media (min-width: 768px) and (max-width: 1180px) {
    .learning-main {
        padding-top: 8px;
        padding-bottom: 10px;
    }

    .clock-reading-shell {
        padding: 1rem 1rem 0.9rem;
    }

    .clock-play-wrap {
        min-height: calc(100dvh - var(--header-height, 70px) - 58px - 54px);
        display: grid;
        grid-template-rows: auto auto 1fr;
        gap: 0.55rem;
    }

    .clock-action-lane {
        margin-bottom: 0.35rem;
        padding: 0.75rem 0.85rem;
    }

    .clock-primary-actions .game-btn {
        min-width: 180px;
        min-height: 50px;
        font-size: 1rem;
    }

    .clock-reading-shell .difficulty-unified .difficulty-btn {
        min-width: 118px;
        min-height: 44px;
        font-size: 0.86rem;
    }

    .clock-info-bar {
        margin-bottom: 0.35rem;
    }

    .clock-info-bar .info-item {
        min-width: 132px;
        font-size: 0.98rem;
        padding: 0.45rem 0.75rem;
    }

    .clock-stage {
        padding: 0.9rem 0.95rem 0.85rem;
        border-radius: 18px;
        display: grid;
        grid-template-rows: auto auto 1fr auto;
        gap: 0.4rem;
    }

    .clock-question {
        font-size: 1.3rem;
        margin-bottom: 0;
    }

    #clockSvg {
        width: min(48vw, 330px);
        max-width: 330px;
        min-width: 260px;
    }

    .clock-answer-grid {
        margin-top: 0.15rem;
        gap: 0.55rem;
    }

    .clock-answer-btn {
        min-height: 54px;
        font-size: 1.1rem;
        border-radius: 12px;
    }

    .clock-answer-help {
        margin-top: 0;
        font-size: 0.9rem;
    }

    .clock-guide-bottom {
        margin-top: 0.6rem;
    }

    .clock-bottom-list {
        margin-top: 0.45rem;
        padding-top: 0.55rem;
    }
}

@media (max-width: 700px) {
    .clock-reading-shell .game-title {
        font-size: 1.7rem;
    }

    .clock-action-lane {
        padding: 0.8rem;
    }

    .clock-primary-actions {
        width: 100%;
    }

    .clock-primary-actions .game-btn {
        width: 100%;
        min-width: 0;
    }

    .clock-reading-shell .difficulty-unified {
        width: 100%;
    }

    .clock-reading-shell .difficulty-unified .difficulty-btn {
        width: 100%;
        min-width: 0;
    }

    .clock-stage {
        padding: 0.95rem;
        border-radius: 18px;
    }

    .clock-answer-grid {
        grid-template-columns: 1fr;
    }
}
/* 2026-03 tablet fit pass: clock reading */
.clock-action-lane,
.clock-stage,
.clock-guide-bottom {
    max-width: 760px;
}

.clock-info-bar {
    max-width: 700px;
}

.clock-stage {
    padding: 1rem 0.95rem 0.75rem;
}

.clock-question {
    margin-bottom: 0.55rem;
    font-size: 1.55rem;
}

#clockSvg {
    max-width: 330px;
}

.clock-answer-grid {
    max-width: 700px;
    margin: 0.75rem auto 0;
}

.clock-answer-help {
    margin-top: 0.45rem;
}

@media (min-width: 768px) and (max-width: 1180px) {
    .clock-play-wrap {
        min-height: auto;
        display: block;
    }

    .clock-action-lane,
    .clock-stage,
    .clock-guide-bottom {
        max-width: 680px;
    }

    .clock-info-bar {
        max-width: 620px;
    }

    .clock-stage {
        padding: 0.75rem 0.8rem 0.65rem;
    }

    .clock-question {
        font-size: 1.18rem;
        margin-bottom: 0.3rem;
    }

    #clockSvg {
        width: min(38vw, 260px);
        max-width: 260px;
        min-width: 210px;
    }

    .clock-answer-grid {
        max-width: 620px;
        margin-top: 0.4rem;
    }

    .clock-answer-btn {
        min-height: 48px;
        font-size: 0.98rem;
    }

    .clock-answer-help {
        margin-top: 0.25rem;
        font-size: 0.84rem;
    }
}

/* 2026-03 final tablet compact pass: clock reading */
.clock-reading-shell {
    max-width: 920px;
}

.clock-action-lane,
.clock-stage,
.clock-guide-bottom {
    max-width: 700px;
}

.clock-info-bar {
    max-width: 640px;
}

.clock-action-lane {
    padding: 0.72rem 0.82rem;
    margin-bottom: 0.5rem;
}

.clock-control-row {
    gap: 0.7rem;
}

.clock-primary-actions .game-btn {
    min-width: 190px;
    min-height: 48px;
    font-size: 0.94rem;
}

.clock-difficulty-panel {
    gap: 0.55rem;
}

.clock-reading-shell .difficulty-unified .difficulty-btn {
    min-width: 108px;
    min-height: 42px;
    padding: 0.45rem 0.7rem;
    font-size: 0.82rem;
}

.clock-stage {
    padding: 0.72rem 0.78rem 0.62rem;
    border-radius: 18px;
}

.clock-question {
    margin-bottom: 0.28rem;
    font-size: 1.22rem;
}

#clockSvg {
    width: min(34vw, 240px);
    max-width: 240px;
}

.clock-answer-grid {
    max-width: 620px;
    gap: 0.45rem;
    margin: 0.35rem auto 0;
}

.clock-answer-btn {
    min-height: 46px;
    font-size: 0.96rem;
}

.clock-answer-help {
    margin-top: 0.18rem;
    font-size: 0.82rem;
}

.clock-guide-bottom {
    margin-top: 0.55rem;
}

.clock-bottom-list {
    margin-top: 0.45rem;
    padding-top: 0.45rem;
}

@media (min-width: 768px) and (max-width: 1180px) {
    .clock-reading-shell {
        max-width: 820px;
    }

    .clock-action-lane,
    .clock-stage,
    .clock-guide-bottom {
        max-width: 620px;
    }

    .clock-info-bar {
        max-width: 580px;
    }

    .clock-action-lane {
        padding: 0.62rem 0.72rem;
    }

    .clock-primary-actions .game-btn {
        min-width: 168px;
        min-height: 44px;
        font-size: 0.88rem;
    }

    .clock-reading-shell .difficulty-unified .difficulty-btn {
        min-width: 96px;
        min-height: 38px;
        padding: 0.35rem 0.55rem;
        font-size: 0.74rem;
    }

    .clock-stage {
        padding: 0.62rem 0.68rem 0.58rem;
    }

    .clock-question {
        font-size: 1.08rem;
        margin-bottom: 0.2rem;
    }

    #clockSvg {
        width: min(31vw, 220px);
        max-width: 220px;
        min-width: 200px;
    }

    .clock-answer-grid {
        max-width: 580px;
        gap: 0.4rem;
        margin-top: 0.3rem;
    }

    .clock-answer-btn {
        min-height: 42px;
        font-size: 0.9rem;
        border-radius: 11px;
    }

    .clock-answer-help {
        font-size: 0.78rem;
    }
}