:root {
        --bg: #ffffff;
        --panel: #F7F8FA;
        --border: #E5E8EC;
        --border-strong: #D6DAE1;
        --ink: #14181F;
        --ink-soft: #5B6472;
        --ink-faint: #8A93A1;
        --blue: #2F6FED;
        --blue-dark: #2158C9;
        --blue-tint: #EAF1FF;
        --teal: #0FA37F;
        --teal-tint: #E6F8F3;
        --danger: #E14B4B;
        --radius: 12px;
        --radius-sm: 8px;
        --font-display: 'Space Grotesk', sans-serif;
        --font-body: 'IBM Plex Sans', sans-serif;
        --font-mono: 'IBM Plex Mono', monospace;
        --shadow-sm: 0 1px 2px rgba(20, 24, 31, 0.05);
        --shadow-md: 0 8px 24px rgba(20, 24, 31, 0.08);
    }

    * {
        box-sizing: border-box;
    }

    html,
    body {
        margin: 0;
        padding: 0;
    }

    body {
        font-family: var(--font-body);
        background: var(--bg);
        color: var(--ink);
        -webkit-font-smoothing: antialiased;
    }

    .wrap {
        max-width: 1080px;
        margin: 0 auto;
        padding: 48px 24px 96px;
    }

    /* ---------- Header ---------- */
    .head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 24px;
        flex-wrap: wrap;
        margin-bottom: 28px;
    }

    .eyebrow {
        font-family: var(--font-mono);
        font-size: 12px;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--teal);
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 10px;
    }

    .eyebrow::before {
        content: "";
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--teal);
        display: inline-block;
    }

    h1 {
        font-family: var(--font-display);
        font-weight: 700;
        font-size: 34px;
        letter-spacing: -0.01em;
        margin: 0 0 6px;
    }

    .sub {
        color: var(--ink-soft);
        font-size: 15px;
        max-width: 560px;
        line-height: 1.5;
        margin: 0;
    }

    .privacy-pill {
        font-family: var(--font-mono);
        font-size: 12px;
        color: var(--teal);
        background: var(--teal-tint);
        border: 1px solid #BFE9DC;
        border-radius: 999px;
        padding: 8px 14px;
        white-space: nowrap;
        display: flex;
        align-items: center;
        gap: 6px;
        height: fit-content;
    }

    /* ---------- Dropzone ---------- */
    .dropzone {
        border: 1.5px dashed var(--border-strong);
        border-radius: var(--radius);
        background: var(--panel);
        padding: 44px 24px;
        text-align: center;
        cursor: pointer;
        transition: border-color .15s ease, background .15s ease;
        position: relative;
    }

    .dropzone.drag {
        border-color: var(--blue);
        background: var(--blue-tint);
    }

    .dz-icon {
        width: 44px;
        height: 44px;
        margin: 0 auto 14px;
        border-radius: 10px;
        background: var(--blue-tint);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--blue);
    }

    .dz-title {
        font-family: var(--font-display);
        font-weight: 600;
        font-size: 17px;
        margin-bottom: 4px;
    }

    .dz-title span {
        color: var(--blue);
        text-decoration: underline;
        text-underline-offset: 3px;
    }

    .dz-sub {
        color: var(--ink-faint);
        font-size: 13px;
    }

    .dz-alt {
        margin-top: 10px;
        font-size: 13px;
        color: var(--ink-faint);
    }

    .dz-alt button {
        font-family: var(--font-body);
        font-size: 13px;
        font-weight: 500;
        color: var(--blue);
        background: none;
        border: none;
        text-decoration: underline;
        text-underline-offset: 3px;
        cursor: pointer;
        padding: 0;
    }

    .file-path-hint {
        font-family: var(--font-mono);
        font-size: 11px;
        color: var(--ink-faint);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 260px;
    }

    .grid-card-path {
        font-family: var(--font-mono);
        font-size: 10.5px;
        color: var(--ink-faint);
        width: 100%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    #fileInput,
    #folderInput {
        display: none;
    }

    /* ---------- File table panel ---------- */
    .panel {
        margin-top: 22px;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
        display: none;
    }

    .panel.show {
        display: block;
    }

    .panel-toolbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 14px 18px;
        background: var(--panel);
        border-bottom: 1px solid var(--border);
        flex-wrap: wrap;
    }

    .toolbar-left {
        display: flex;
        align-items: center;
        gap: 14px;
        font-size: 13.5px;
        color: var(--ink-soft);
    }

    .toolbar-left b {
        color: var(--ink);
    }

    .toolbar-right {
        display: flex;
        gap: 8px;
    }

    .icon-btn {
        width: 34px;
        height: 34px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border);
        background: #fff;
        color: var(--ink-soft);
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all .12s ease;
    }

    .icon-btn:hover {
        background: var(--blue-tint);
        color: var(--blue);
        border-color: #C6D9FB;
    }

    .icon-btn.danger:hover {
        background: #FCEAEA;
        color: var(--danger);
        border-color: #F3C6C6;
    }

    table {
        width: 100%;
        border-collapse: collapse;
    }

    thead th {
        text-align: left;
        font-family: var(--font-mono);
        font-size: 11.5px;
        text-transform: uppercase;
        letter-spacing: .04em;
        color: var(--ink-faint);
        font-weight: 500;
        padding: 12px 18px;
        border-bottom: 1px solid var(--border);
    }

    thead th:first-child {
        width: 44px;
    }

    .sortable-th {
        cursor: pointer;
        user-select: none;
        transition: color .12s ease;
    }

    .sortable-th:hover {
        color: var(--blue);
    }

    .sort-arrow {
        display: inline-block;
        margin-left: 3px;
        opacity: .35;
        transition: opacity .12s ease, transform .12s ease;
    }

    .sortable-th.active .sort-arrow {
        opacity: 1;
        color: var(--blue);
    }

    .sort-arrow.desc {
        transform: rotate(180deg);
    }

    tbody tr {
        border-bottom: 1px solid var(--border);
    }

    tbody tr:last-child {
        border-bottom: none;
    }

    tbody tr:hover {
        background: #FAFBFD;
    }

    tbody td {
        padding: 12px 18px;
        font-size: 14px;
        vertical-align: middle;
    }

    .chk {
        width: 18px;
        height: 18px;
        border-radius: 5px;
        border: 1.5px solid var(--border-strong);
        cursor: pointer;
        accent-color: var(--blue);
    }

    .file-cell {
        display: flex;
        align-items: center;
        gap: 10px;
        min-width: 0;
    }

    .file-ico {
        width: 30px;
        height: 30px;
        flex-shrink: 0;
        border-radius: 7px;
        background: var(--blue-tint);
        color: var(--blue);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .file-name {
        font-weight: 500;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 260px;
    }

    .cell-mono {
        font-family: var(--font-mono);
        color: var(--ink-soft);
        font-size: 13px;
    }

    .type-badge {
        font-family: var(--font-mono);
        font-size: 11.5px;
        background: var(--panel);
        border: 1px solid var(--border);
        color: var(--ink-soft);
        padding: 3px 8px;
        border-radius: 6px;
        text-transform: uppercase;
    }

    .panel-header {
        display: flex;
        justify-content: flex-end;
        padding: 12px 18px;
        background: #fff;
        border-bottom: 1px solid var(--border);
    }

    .view-toggle {
        display: flex;
        gap: 3px;
        background: var(--panel);
        border: 1px solid var(--border);
        border-radius: 9px;
        padding: 3px;
    }

    .view-btn {
        width: 30px;
        height: 30px;
        border: none;
        background: transparent;
        border-radius: 6px;
        color: var(--ink-faint);
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all .12s ease;
    }

    .view-btn:hover {
        color: var(--ink);
    }

    .view-btn.active {
        background: #fff;
        color: var(--blue);
        box-shadow: var(--shadow-sm);
    }

    .grid-view-wrap {
        display: none;
        padding: 18px;
    }

    .grid-view-wrap.show {
        display: block;
    }

    .table-view-wrap.hide {
        display: none;
    }

    .grid-view {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 14px;
    }

    .grid-card {
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        padding: 14px 12px 12px;
        background: #fff;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 8px;
        transition: border-color .12s ease, box-shadow .12s ease;
        position: relative;
    }

    .grid-card:hover {
        border-color: var(--border-strong);
        box-shadow: var(--shadow-sm);
    }

    .grid-card {
        cursor: grab;
        overflow: hidden;
    }

    .grid-card:active {
        cursor: grabbing;
    }

    .grid-card.dragging {
        opacity: .45;
        transform: scale(.98);
    }

    .grid-card.drop-target {
        border-color: var(--blue);
        box-shadow: 0 0 0 2px var(--blue-tint);
    }

    .grid-card-selected {
        border-color: #AFC8FA;
        box-shadow: 0 0 0 2px var(--blue-tint);
    }

    .album-hint {
        color: var(--ink-faint);
        font-size: 12px;
        margin-top: 8px;
    }

    .grid-card.cut-marked {
        opacity: .45;
    }

    .grid-card.cut-marked .grid-card-name {
        text-decoration: line-through dashed var(--ink-faint);
    }

    .grid-card-top {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .grid-card-actions {
        display: flex;
        gap: 2px;
    }

    .grid-card-preview {
        width: 100%;
        aspect-ratio: 4 / 3;
        border-radius: 8px;
        overflow: hidden;
        background: var(--panel);
        border: 1px solid var(--border);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--blue);
    }

    .grid-card-preview img {
        width: 100%;
        height: 100%;
        display: block;
        object-fit: cover;
    }

    .grid-card-preview .preview-icon {
        width: 46px;
        height: 46px;
        border-radius: 10px;
        background: var(--blue-tint);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .grid-card-name {
        font-size: 13px;
        font-weight: 500;
        width: 100%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .grid-card-meta {
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 12px;
    }

    .grid-card-date {
        font-size: 11px;
        color: var(--ink-faint);
    }

    .row-actions {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: 6px;
    }

    .row-download,
    .row-remove {
        background: none;
        border: none;
        cursor: pointer;
        color: var(--ink-faint);
        width: 28px;
        height: 28px;
        border-radius: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    .row-download:hover {
        background: var(--blue-tint);
        color: var(--blue);
    }

    .row-remove:hover {
        background: #FCEAEA;
        color: var(--danger);
    }

    .row-rename {
        background: none;
        border: none;
        cursor: pointer;
        color: var(--ink-faint);
        width: 26px;
        height: 26px;
        border-radius: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    .row-rename:hover {
        background: var(--blue-tint);
        color: var(--blue);
    }

    .name-edit {
        font-family: var(--font-body);
        font-size: 14px;
        font-weight: 500;
        border: 1.5px solid var(--blue);
        border-radius: 6px;
        padding: 3px 7px;
        outline: none;
        width: 100%;
        max-width: 260px;
    }

    tr.cut-marked {
        opacity: .45;
    }

    tr.cut-marked .file-name {
        text-decoration: line-through dashed var(--ink-faint);
    }

    .icon-btn:disabled {
        opacity: .35;
        cursor: not-allowed;
        pointer-events: none;
    }

    .icon-btn.active {
        background: var(--blue-tint);
        color: var(--blue);
        border-color: #C6D9FB;
    }

    .toast {
        position: fixed;
        bottom: 28px;
        left: 50%;
        transform: translateX(-50%) translateY(12px);
        background: var(--ink);
        color: #fff;
        font-family: var(--font-mono);
        font-size: 13px;
        padding: 10px 18px;
        border-radius: 8px;
        opacity: 0;
        pointer-events: none;
        transition: opacity .18s ease, transform .18s ease;
        z-index: 50;
    }

    .toast.show {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }

    /* ---------- Footer action bar ---------- */
    .action-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        margin-top: 22px;
        flex-wrap: wrap;
    }

    .zip-name-field {
        display: flex;
        align-items: center;
        gap: 8px;
        border: 1px solid var(--border-strong);
        border-radius: var(--radius-sm);
        padding: 9px 12px;
        background: #fff;
    }

    .zip-name-field input {
        border: none;
        outline: none;
        font-family: var(--font-mono);
        font-size: 13.5px;
        width: 190px;
        color: var(--ink);
    }

    .zip-name-field span {
        color: var(--ink-faint);
        font-family: var(--font-mono);
        font-size: 13px;
    }

    .btn-compress {
        font-family: var(--font-display);
        font-weight: 600;
        font-size: 15px;
        color: #fff;
        background: linear-gradient(180deg, var(--blue), var(--blue-dark));
        border: none;
        border-radius: var(--radius-sm);
        padding: 13px 26px;
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 9px;
        box-shadow: var(--shadow-sm);
        transition: transform .1s ease, box-shadow .1s ease;
    }

    .btn-compress:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-1px);
    }

    .btn-compress:disabled {
        opacity: .5;
        cursor: not-allowed;
        transform: none;
        box-shadow: none;
    }

    /* progress */
    .progress-wrap {
        display: none;
        align-items: center;
        gap: 12px;
        margin-top: 18px;
        font-family: var(--font-mono);
        font-size: 13px;
        color: var(--ink-soft);
    }

    .progress-wrap.show {
        display: flex;
    }

    .progress-track {
        flex: 1;
        height: 8px;
        border-radius: 999px;
        background: var(--panel);
        border: 1px solid var(--border);
        overflow: hidden;
    }

    .progress-fill {
        height: 100%;
        width: 0%;
        background: linear-gradient(90deg, var(--blue), var(--teal));
        transition: width .12s ease;
    }

    .empty-hint {
        text-align: center;
        color: var(--ink-faint);
        font-size: 13px;
        padding: 30px 0 6px;
    }

    @media (max-width: 760px) {
        .file-name {
            max-width: 120px;
        }

        thead th:nth-child(3),
        tbody td:nth-child(3) {
            display: none;
        }

        /* type col hidden on small screens */
        thead th:nth-child(5),
        tbody td:nth-child(5) {
            display: none;
        }

        /* modified col hidden on small screens */
        .head {
            flex-direction: column;
            align-items: flex-start;
        }
    }