/* ═══════════════════════════════════════════
   TrainControl — Mobile Layout
   ═══════════════════════════════════════════ */

/* ── Mobile grid (hidden on desktop) ── */
.mobile-grid-wrap {
    display: none;
}

@media (max-width: 768px) {
    /* Hide desktop layout */
    .sidebar { display: none !important; }
    .control-grid { display: none !important; }

    .mobile-grid-wrap {
        display: block;
        flex: 1;
        overflow-y: auto;
        padding: var(--gap-md);
    }

    .mobile-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--gap-md);
    }

    .mobile-empty {
        grid-column: 1 / -1;
        text-align: center;
        color: var(--text-tertiary);
        font-size: 0.88rem;
        padding: 40px 0;
    }

    /* ── Mobile loco button ── */
    .mobile-loco-btn {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: var(--gap-sm);
        padding: var(--gap-md);
        background: var(--bg-card);
        backdrop-filter: blur(var(--glass-blur));
        -webkit-backdrop-filter: blur(var(--glass-blur));
        border: 1px solid var(--border-card);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-card);
        cursor: pointer;
        font-family: var(--font-sans);
        transition: transform 150ms ease, box-shadow 150ms ease;
        -webkit-tap-highlight-color: transparent;
    }
    .mobile-loco-btn:active {
        transform: scale(0.96);
    }

    .mobile-loco-photo {
        width: 72px;
        height: 72px;
        border-radius: var(--radius-md);
        background: linear-gradient(135deg, #5b82c9, #3a5a9e);
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
    }
    .mobile-loco-photo img {
        width: 100%; height: 100%; object-fit: cover;
    }
    .mobile-loco-photo .default-icon { font-size: 1.8rem; }

    .mobile-loco-name {
        font-weight: 600;
        font-size: 0.88rem;
        color: var(--text-primary);
        text-align: center;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        max-width: 100%;
    }
    .mobile-loco-addr {
        font-size: 0.72rem;
        color: var(--text-tertiary);
    }

    /* ── Mobile card overlay ── */
    .mobile-card-overlay {
        position: fixed;
        inset: 0;
        z-index: 600;
        background: rgba(0,0,0,0.4);
        backdrop-filter: blur(6px);
        -webkit-backdrop-filter: blur(6px);
        display: flex;
        align-items: flex-end;
        justify-content: center;
        opacity: 0;
        pointer-events: none;
        transition: opacity 250ms ease;
    }
    .mobile-card-overlay.show {
        opacity: 1;
        pointer-events: auto;
    }

    .mobile-card {
        background: var(--bg-card-solid);
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        width: 100%;
        max-height: 88vh;
        overflow-y: auto;
        padding: var(--gap-md) var(--gap-lg) var(--gap-xl);
        transform: translateY(100%);
        transition: transform 300ms cubic-bezier(0.16,1,0.3,1);
    }
    .mobile-card-overlay.show .mobile-card {
        transform: translateY(0);
    }

    .mobile-card-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: var(--gap-md);
    }

    /* ── Mobile speed (horizontal) ── */
    .mobile-speed {
        display: flex;
        align-items: center;
        gap: var(--gap-md);
        margin-bottom: var(--gap-md);
    }
    .mobile-speed .speed-label {
        font-size: 0.72rem;
        text-transform: uppercase;
        color: var(--text-secondary);
        min-width: 50px;
    }
    .mobile-speed .speed-value {
        font-size: 1.3rem;
        font-weight: 700;
        color: var(--tc-blue);
        min-width: 36px;
        text-align: right;
        font-variant-numeric: tabular-nums;
    }
    .mobile-speed-slider {
        flex: 1;
        -webkit-appearance: none;
        appearance: none;
        height: 8px;
        background: var(--bg-input);
        border-radius: var(--radius-pill);
        outline: none;
    }
    .mobile-speed-slider::-webkit-slider-thumb {
        -webkit-appearance: none;
        width: 26px; height: 26px;
        border-radius: 50%;
        background: var(--tc-blue);
        border: 3px solid white;
        box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    }

    /* Functions grid 3 col */
    .mobile-card .functions-grid {
        grid-template-columns: repeat(3, 1fr);
        margin-bottom: var(--gap-md);
    }

    /* Direction row full width */
    .mobile-card .direction-section {
        padding-top: 0;
    }
    .mobile-card .direction-row {
        width: 100%;
    }
    .mobile-card .direction-toggle {
        flex: 1;
    }
}

/* Small phones */
@media (max-width: 380px) {
    .mobile-grid {
        grid-template-columns: 1fr;
    }
}