/* ===== Mobile Responsive (< 768px) ===== */

/* ── Global ── */
@media (max-width: 768px) {
    html { font-size: 18px; }

    /* Header */
    .page-header {
        padding: 8px 12px;
        min-height: 44px;
        gap: 6px;
    }

    .page-header h2 {
        font-size: 0.95rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        min-width: 0;
        flex-shrink: 1;
    }

    .header-right {
        gap: 6px;
        flex-shrink: 0;
    }

    .anlas-display {
        font-size: 0.72rem;
        padding: 3px 6px;
    }

    .header-logout-btn {
        font-size: 0.85rem;
        padding: 2px 4px;
    }

    .queue-status {
        display: none;
    }

    /* Sidebar */
    .sidebar {
        width: 260px;
    }

    .sidebar-overlay.active {
        display: block;
    }

    /* ── Generate Page ── */
    .gen-layout {
        flex-direction: column;
    }

    .gen-params {
        width: 100% !important;
        max-width: none !important;
        min-width: 0 !important;
        max-height: none;
        border-right: none;
        flex: 0 0 auto;
        max-height: 55%;
        overflow: hidden;
    }

    /* Make params scrollable with limited initial height,
       expandable via a toggle */
    .gen-params-scroll {
        padding: 12px;
        overflow-y: auto;
    }

    .gen-resizer {
        display: none !important;
    }

    .gen-result {
        min-height: 200px;
        flex: 1 1 0%;
    }

    .gen-result-image {
        padding: 8px;
    }

    .gen-result-info {
        padding: 8px 12px;
        max-height: 120px;
    }

    /* Seed row */
    .seed-row {
        flex-wrap: nowrap;
    }

    .seed-row .form-input {
        min-width: 0;
    }

    /* Collapsible sections */
    .collapsible-content.open {
        max-height: 8000px;
    }

    /* Generate button */
    .btn-generate {
        padding: 14px;
        font-size: 1.05rem;
        position: sticky;
        bottom: 0;
        z-index: 5;
    }

    /* ── Director Tools Page ── */
    .dt-layout {
        flex-direction: column;
    }

    .dt-left {
        border-right: none !important;
        flex: 0 0 auto;
        max-height: 55%;
        overflow: hidden;
    }

    .dt-left .dt-panel-body {
        overflow-y: auto;
    }

    .dt-right {
        flex: 1 1 0%;
        min-height: 200px;
    }

    .dt-controls {
        max-height: none;
        overflow-y: visible;
    }

    .dt-req-type-row {
        flex-wrap: wrap;
    }

    .dt-btn-row {
        flex-wrap: wrap;
    }

    .dt-btn-row .btn-mask {
        min-width: 0;
        font-size: 0.72rem;
        padding: 5px 4px;
    }

    .dt-send-row {
        padding: 6px 10px;
    }

    .dt-send-row .btn-mask {
        font-size: 0.72rem;
        padding: 5px 4px;
    }

    .dt-generate-bar {
        padding: 8px 12px;
    }

    .dt-output-img-large {
        max-height: 35vh;
    }

    /* ── PNG Info Page ── */
    .pi-layout {
        flex-direction: column;
    }

    .pi-left {
        max-width: none !important;
        border-right: none !important;
        flex: 0 0 auto;
        max-height: 55%;
        overflow: hidden;
    }

    .pi-right {
        flex: 1 1 0%;
        min-height: 200px;
    }

    .pi-preview-img {
        max-height: 30vh;
    }

    .pi-raw-text {
        max-height: 120px;
    }

    /* ── Tagger Page ── */
    .tagger-layout {
        flex-direction: column;
    }

    .tagger-left {
        max-width: none !important;
        border-right: none !important;
        flex: 0 0 auto;
        max-height: 55%;
        overflow: hidden;
    }

    .tagger-left .tagger-panel-body {
        overflow-y: auto;
    }

    .tagger-right {
        flex: 1 1 0%;
        min-height: 200px;
    }

    .tagger-preview-img {
        max-height: 25vh;
    }

    .tagger-param-row {
        flex-wrap: wrap;
        gap: 4px;
    }

    /* ── History Page ── */
    .history-layout {
        flex-direction: column;
    }

    .history-left {
        flex: 1;
        min-height: 0;
    }

    .history-right {
        width: 100% !important;
        max-width: none !important;
        min-width: 0 !important;
        border-left: none !important;
        border-top: 1px solid var(--border);
        flex-shrink: 0;
    }

    #history-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 3px;
        padding: 4px;
    }

    .history-detail-img-wrap {
        max-height: 25vh;
    }

    .history-detail-img-wrap img {
        max-height: 25vh;
    }

    .history-action-bar {
        padding: 6px 8px;
    }

    .history-btn-row {
        gap: 3px;
    }

    .history-btn-row .btn-mask {
        font-size: 0.68rem;
        padding: 4px 3px;
    }

    .history-search-bar {
        padding: 6px 8px;
    }

    /* ── Cloud Page ── */
    .cloud-layout {
        flex-direction: column;
    }

    .cloud-sidebar {
        width: 100% !important;
        min-width: 0 !important;
        max-height: 70px;
        border-right: none !important;
        border-bottom: 1px solid var(--border);
        flex-shrink: 0;
    }

    .cloud-sidebar-body {
        display: flex;
        overflow-x: auto;
        overflow-y: hidden;
        gap: 0;
    }

    .cloud-date-item {
        white-space: nowrap;
        border-left: none;
        border-bottom: 3px solid transparent;
        padding: 6px 10px;
        font-size: 0.75rem;
    }

    .cloud-date-item.active {
        border-left-color: transparent;
        border-bottom-color: var(--accent);
    }

    .cloud-main {
        flex: 1;
        min-height: 0;
    }

    #cloud-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 3px;
        padding: 4px;
    }

    .cloud-detail-panel {
        width: 100% !important;
        max-width: none !important;
        min-width: 0 !important;
        border-left: none !important;
        border-top: 1px solid var(--border);
        flex-shrink: 0;
    }

    /* ── Settings Page ── */
    .settings-scroll {
        padding: 12px;
    }

    .settings-section {
        padding: 12px 14px;
    }

    .settings-row {
        flex-wrap: wrap;
        gap: 6px;
    }

    .settings-row label {
        flex: 1;
        min-width: 120px;
    }

    /* ── Tag Autocomplete ── */
    .tac-popup {
        max-width: calc(100vw - 16px);
        min-width: 220px;
        left: 8px !important;
        max-height: 200px;
    }

    .tac-item {
        padding: 6px 8px;
        font-size: 0.78rem;
    }

    .tac-item-name {
        max-width: 140px;
    }

    .tac-item-zh {
        font-size: 0.68rem;
    }

    /* ── Upload Dropzone ── */
    .upload-dropzone {
        padding: 12px;
    }

    .upload-dropzone-text {
        font-size: 0.8rem;
    }

    .upload-icon {
        font-size: 1.2rem;
    }

    /* ── Vibe Items ── */
    .vibe-ref-item, .vibe-file-item {
        flex-direction: column;
        align-items: stretch;
    }

    .vibe-ref-thumb-wrap, .vibe-file-thumb-wrap {
        width: 100%;
        height: auto;
        max-height: 80px;
    }

    .vibe-ref-thumb, .vibe-file-thumb {
        width: 100%;
        height: auto;
        max-height: 80px;
        object-fit: contain;
    }

    /* ── Character Grid ── */
    .char-grid {
        max-width: 130px;
    }

    /* ── Extra Input ── */
    .extra-preview-img {
        max-height: 250px;
    }

    .extra-btn-row {
        flex-wrap: wrap;
    }

    .extra-btn-row .btn-mask {
        font-size: 0.75rem;
        min-width: 0;
    }

    /* ── Mode Switch ── */
    .mode-label {
        padding: 7px 8px;
        font-size: 0.8rem;
    }

    /* ── Slider ── */
    .slider-value {
        min-width: 36px;
        font-size: 0.78rem;
        padding: 3px 4px;
    }

    /* ── Misc ── */
    [data-tooltip]::after {
        display: none;
    }

    .form-divider {
        margin: 12px 0;
    }
}

/* ===== Extra small screens (< 400px) ===== */
@media (max-width: 400px) {
    html { font-size: 12px; }

    .page-header h2 {
        font-size: 0.85rem;
    }

    .anlas-display {
        display: none;
    }

    .gen-params-scroll {
        padding: 10px 8px;
        max-height: 50vh;
    }

    #history-grid, #cloud-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }

    .settings-section {
        padding: 10px;
    }

    .tac-popup {
        max-height: 160px;
    }
}

/* ===== Touch improvements ===== */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .nav-item {
        padding: 12px 14px;
    }

    .btn-icon {
        width: 40px;
        height: 40px;
    }

    .tac-item {
        padding: 8px 10px;
        min-height: 36px;
    }

    /* Show remove buttons always on touch */
    .vibe-ref-remove,
    .vibe-file-download {
        opacity: 1;
    }

    .history-card {
        -webkit-tap-highlight-color: transparent;
    }

    /* Prevent zoom on input focus */
    input[type="text"],
    input[type="number"],
    input[type="search"],
    textarea,
    select {
        font-size: 16px !important;
    }
}

/* ===== Mobile Toast ===== */
.mobile-toast {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    z-index: 10001;
    box-shadow: 0 4px 20px var(--shadow);
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    max-width: calc(100vw - 32px);
    overflow: hidden;
    text-overflow: ellipsis;
}

.mobile-toast.show {
    display: flex;
}