/* Trainers-specific mobile layout overrides */
@media (max-width: 576px) {

    /* Remove side margins/padding so content can use full viewport width */
    .intro-box,
    #trainer-container,
    #pro-trainer-container {
        width: 100% !important;
        max-width: 100% !important;
        margin-top: 6.5rem !important;
        /* increased top spacing so titles clear fixed header */
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    /* Make card bodies span full width with reduced radius so they sit flush */
    .intro-box .card,
    #trainer-container .card,
    #pro-trainer-container .card {
        margin-left: 0 !important;
        margin-right: 0 !important;
        border-radius: 0.375rem;
        box-shadow: none;
        width: 100% !important;
    }

    .intro-box .card .card-body,
    #trainer-container .card .card-body,
    #pro-trainer-container .card .card-body {
        padding-left: 0.75rem !important;
        padding-right: 0.75rem !important;
    }

    /* Ensure timers, canvases and controls can grow horizontally */
    .cube-canvas-half {
        max-width: 100% !important;
    }
}

/* Minor enhancement: slightly tighten spacing on small screens */
@media (max-width: 576px) {
    .trainer-text {
        font-size: 0.95rem;
    }
}

/* Aggressive flush for very small devices: remove any remaining gutters */
@media (max-width: 576px) {

    html,
    body {
        margin: 0;
        padding: 0;
        width: 100%;
        overflow-x: hidden;
    }

    /* Ensure bootstrap container padding is removed inside trainer intro */
    .intro-box>.container,
    #trainer-container.container,
    #pro-trainer-container.container {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    /* Make the immediate column and card full-bleed */
    .intro-box .row,
    .intro-box .col-12,
    #trainer-container .row,
    #trainer-container .col-12 {
        margin: 0 !important;
        padding: 0 !important;
        width: 100% !important;
    }

    .intro-box .card,
    #trainer-container .card {
        border-radius: 0 !important;
        margin: 0 !important;
        box-shadow: none !important;
    }

    /* Keep comfortable padding inside the card body but remove outer gutters */
    .intro-box .card .card-body,
    #trainer-container .card .card-body {
        padding-left: 0.5rem !important;
        padding-right: 0.5rem !important;
    }
}

/* Override global .d-flex mobile behavior for trainer controls: keep inner groups horizontal */
@media (max-width: 768px) {
    .trainer-controls .d-flex {
        flex-direction: row !important;
        flex-wrap: wrap !important;
        justify-content: center !important;
        align-items: center !important;
    }

    .trainer-controls .d-flex>* {
        display: inline-flex !important;
        margin-right: 0.5rem;
    }
}

/* Small spacing above Select & Review button on phones to avoid overlap */
/* Spacing above Select & Review for all viewports (slightly smaller than previous) */
.select-review-row {
    margin-top: 0.6rem !important;
    padding-top: 0.25rem !important;
}

/* Horizontal line used around scramble canvas */
.scramble-hr {
    border: 0;
    height: 1px;
    background: #e9ecef;
    margin: 6px 0;
}

/* Stronger overrides: prevent selects/buttons inside trainer-controls from becoming full-width on mobile */
@media (max-width: 768px) {
    #trainer-container .trainer-controls>.d-flex {
        flex-direction: row !important;
        align-items: center !important;
    }

    #trainer-container .trainer-controls select.form-select {
        width: auto !important;
        min-width: 110px !important;
        display: inline-block !important;
    }

    #trainer-container .trainer-controls button.btn {
        display: inline-block !important;
        white-space: nowrap !important;
    }
}

/* Make toggle buttons split 50/50 on small screens and add spacing above Select & Review */
@media (max-width: 768px) {
    .trainer-controls .toggle-row {
        width: 100% !important;
        justify-content: space-between !important;
        gap: 0.25rem !important;
        padding-left: 0.15rem;
        padding-right: 0.15rem;
        flex-wrap: nowrap !important;
    }

    .trainer-controls .toggle-row button {
        flex: 0 0 48% !important;
        width: 48% !important;
        min-width: 0 !important;
        box-sizing: border-box !important;
        text-align: center;
        padding: 0.25rem 0.45rem !important;
    }

    /* Increase mobile spacing between toggles and Select & Review slightly */
    #trainer-container .select-review-row {
        margin-top: 1rem !important;
    }
}

/* Subset checkbox grid: try to fit items horizontally and use compact switch style */
.subset-checkbox-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 0.6rem;
    align-items: center;
}

.subset-checkbox-grid .form-check {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    margin-right: 0.5rem;
}

.subset-checkbox-grid .form-check .form-check-input {
    margin-right: 0.35rem;
}

.subset-checkbox-grid .form-check-label {
    margin-bottom: 0;
    font-size: 0.88rem;
}

/* Make switches compact */
.subset-checkbox-grid .form-switch .form-check-input {
    width: 2.2rem;
    height: 1.1rem;
}