/* -- Mobile -------------------------------------- */
@media (max-width: 768px) {
    body {
        padding: 0;
        align-items: stretch;
        min-height: 100dvh;
        background-attachment: scroll;
    }

    .container {
        width: 100%;
        max-width: none;
        min-height: 100dvh;
        border: none;
        border-radius: 0;
        box-shadow: none;
        padding: env(safe-area-inset-top, 1rem) 1.1rem env(safe-area-inset-bottom, 1rem);
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .page-exercise.active {
        min-height: calc(100dvh - env(safe-area-inset-top, 1rem) - env(safe-area-inset-bottom, 1rem));
        gap: 0.25rem;
        padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 1rem);
    }

    #page-language.active,
    #page-prompt-language.active,
    #page-topic.active {
        display: flex;
        flex-direction: column;
        justify-content: center;
        min-height: calc(100dvh - env(safe-area-inset-top, 1rem) - env(safe-area-inset-bottom, 1rem));
        padding-top: max(1rem, env(safe-area-inset-top, 0px));
        padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 1.25rem);
    }

    #page-topic.active {
        justify-content: flex-start;
        padding-top: clamp(1.25rem, 7dvh, 4rem);
        padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 2rem);
    }

    .onboard-panel {
        margin-bottom: 0.85rem;
    }

    .onboard-panel-ui,
    .topic-panel {
        padding: 0.85rem 0.75rem;
        border-radius: 14px;
    }

    .onboard-mascot {
        width: 104px;
        height: 86px;
        margin-top: 0;
    }

    .lang-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0.5rem;
    }

    .lang-card {
        min-height: 5rem;
        padding: 0.62rem 0.3rem;
        border-radius: 12px;
    }

    .lang-flag {
        font-size: 1.42rem;
    }

    .lang-name {
        font-size: 0.72rem;
        max-width: 6.1rem;
    }

    .topic-grid {
        gap: 0.55rem;
        padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 1.5rem);
    }

    .training-type-tabs,
    .practice-mode-tabs {
        gap: 0.35rem;
        margin-bottom: 0.55rem;
    }

    .training-type-tab,
    .practice-mode-tab {
        min-height: 38px;
        font-size: 0.82rem;
        border-radius: 10px;
    }

    .topic-card {
        min-height: 6rem;
        padding: 0.65rem 0.45rem;
        border-radius: 12px;
    }

    .topic-card-emoji {
        font-size: 2.2rem;
    }

    .topic-card-desc {
        font-size: 0.64rem;
    }

    .context-row {
        margin-top: 0.55rem;
    }

    .session-progress {
        margin-bottom: 0.38rem;
    }

    .session-summary {
        margin-top: 0.65rem;
        padding: 0 0 calc(env(safe-area-inset-bottom, 0px) + 0.55rem);
    }

    .session-celebration,
    .session-review {
        border-radius: 18px;
    }

    .session-celebration {
        gap: 0.6rem;
        padding: 0.82rem;
    }

    .session-review {
        padding: 0.82rem;
    }

    .session-celebration h2 {
        font-size: 1.5rem;
    }

    .session-review h2 {
        font-size: 1.08rem;
    }

    .session-summary-list {
        max-height: calc(100dvh - 15rem);
    }

    .session-summary-row {
        padding: 0.62rem 0.66rem;
    }

    h1 {
        font-size: 1.45rem;
    }

    .subtitle {
        font-size: 0.82rem;
        margin-bottom: 1.1rem;
    }

    .challenge-box {
        padding: 0.9rem;
        border-radius: 14px;
        min-height: 0;
        flex: 1 1 auto;
        margin-bottom: 0.35rem;
    }

    .challenge-text {
        font-size: 1.32rem;
        min-height: 7.25rem;
        max-height: none;
        overflow: visible;
    }

    .challenge-stage {
        min-height: 7.25rem;
    }

    .challenge-box.has-result {
        min-height: 0;
    }

    .challenge-box.has-result .challenge-text {
        min-height: 3.3rem;
        max-height: 5.2rem;
        overflow: hidden;
    }

    .challenge-box.has-result .challenge-stage {
        min-height: 3.3rem;
    }

    .result-header {
        margin-bottom: 0.55rem;
    }

    .result-row {
        padding: 0.56rem 0.65rem;
        margin-bottom: 0.42rem;
    }

    .result-label-text {
        font-size: 0.66rem;
    }

    .result-value {
        -webkit-line-clamp: 2;
        line-clamp: 2;
    }

    .result-emoji {
        font-size: 2rem;
    }

    .result-status {
        font-size: 1.05rem;
    }

    .options {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }

    .selector-label {
        font-size: 0.8rem;
    }

    .account-selector-row {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 0.45rem;
        flex-wrap: nowrap;
    }

    .account-selector-row .selector-label {
        width: 5.8rem;
        text-align: left;
        flex: 0 0 auto;
    }

    .account-selector-row .btn-group {
        gap: 0.25rem;
        flex: 0 1 auto;
        justify-content: flex-end;
    }

    .account-selector-row .btn-group-btn {
        font-size: 0.78rem;
        padding: 0.34rem 0.44rem;
        border-radius: 8px;
        min-width: 3.05rem;
    }

    .options label,
    .selector-row label {
        width: 100%;
        max-width: 280px;
        justify-content: space-between;
        font-size: 0.82rem;
    }

    .options select,
    .selector-row select {
        font-size: 0.82rem;
        padding: 0.4rem 0.55rem;
    }

    .record-btn {
        width: 76px;
        height: 76px;
        border-width: 3px;
    }

    .record-icon {
        border-left-width: 22px;
        border-top-width: 13px;
        border-bottom-width: 13px;
    }

    .recording .record-icon {
        width: 20px;
        height: 20px;
    }

    .result {
        padding: 0.75rem;
        font-size: 0.86rem;
        border-radius: 14px;
    }

    .action-buttons {
        gap: 1rem;
        min-height: 110px;
        padding-top: 0;
        margin-bottom: 0.2rem;
    }

    .action-btn {
        width: 56px;
        height: 56px;
    }

    .action-btn svg {
        width: 19px;
        height: 19px;
    }
}

@media (max-width: 380px) {
    .action-btn {
        width: 50px;
        height: 50px;
    }

    .action-btn svg {
        width: 17px;
        height: 17px;
    }

    .container {
        padding: env(safe-area-inset-top, 0.5rem) 0.8rem env(safe-area-inset-bottom, 0.5rem);
    }

    #page-language.active,
    #page-prompt-language.active,
    #page-topic.active {
        padding-top: max(0.8rem, env(safe-area-inset-top, 0px));
        padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 1rem);
    }

    #page-topic.active {
        padding-top: clamp(1rem, 5dvh, 2.5rem);
        padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 1.5rem);
    }

    h1 {
        font-size: 1.3rem;
    }

    .onboard-title-sm {
        font-size: 1.2rem;
    }

    .lang-grid {
        gap: 0.42rem;
    }

    .lang-card {
        min-height: 4.7rem;
    }

    .lang-name {
        font-size: 0.68rem;
        max-width: 5.4rem;
    }

    .context-pill {
        font-size: 0.7rem;
    }

    .challenge-text {
        font-size: 1.18rem;
    }

    .record-btn {
        width: 68px;
        height: 68px;
    }

    .record-icon {
        border-left-width: 20px;
        border-top-width: 12px;
        border-bottom-width: 12px;
        margin-left: 4px;
    }

    .recording .record-icon {
        width: 18px;
        height: 18px;
    }
}