.dxf-preview-trigger {
    appearance: none;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 1px solid #bfd3e7;
    padding: 4px;
    background-color: #f8fbff;
    background-image:
        linear-gradient(rgba(79, 118, 153, .11) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 118, 153, .11) 1px, transparent 1px);
    background-size: 11px 11px;
    color: inherit;
    cursor: zoom-in;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .7);
    transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
}

.dxf-preview-trigger:hover,
.dxf-preview-trigger:focus-visible {
    border-color: #2563eb;
    outline: 0;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .14);
    transform: translateY(-1px);
}

.dxf-preview-trigger svg,
.dxf-preview-trigger img {
    position: relative;
    z-index: 1;
}

.dxf-preview-trigger svg * {
    fill: none !important;
    stroke: #173b63 !important;
    stroke-width: 1.8px !important;
    vector-effect: non-scaling-stroke;
}

body.dxf-preview-open {
    overflow: hidden;
}

.dxf-preview-modal {
    position: fixed;
    z-index: 160;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 24px;
    background: rgba(7, 20, 34, .72);
    backdrop-filter: blur(5px);
}

.dxf-preview-modal[hidden] {
    display: none;
}

.dxf-preview-dialog {
    display: flex;
    width: min(1180px, 96vw);
    max-height: 94vh;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 28px 90px rgba(4, 15, 27, .4);
}

.dxf-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 15px 18px;
    color: #fff;
    background: #0c2138;
}

.dxf-preview-heading {
    min-width: 0;
}

.dxf-preview-heading span {
    display: block;
    color: #80cfff;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
}

.dxf-preview-heading h2 {
    max-width: 720px;
    margin: 3px 0 0;
    overflow: hidden;
    color: #fff;
    font-size: 17px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dxf-preview-actions {
    display: flex;
    align-items: center;
    gap: 7px;
}

.dxf-preview-tool,
.dxf-preview-close {
    display: inline-grid;
    min-width: 38px;
    min-height: 36px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, .24);
    border-radius: 8px;
    padding: 0 10px;
    color: #fff;
    background: rgba(255, 255, 255, .08);
    cursor: pointer;
    font-size: 20px;
    font-weight: 700;
}

.dxf-preview-tool:hover,
.dxf-preview-close:hover,
.dxf-preview-tool:focus-visible,
.dxf-preview-close:focus-visible {
    outline: 0;
    background: rgba(255, 255, 255, .17);
}

.dxf-preview-tool:disabled {
    cursor: default;
    opacity: .4;
}

.dxf-preview-fit {
    font-size: 12px;
}

.dxf-preview-close {
    margin-left: 7px;
    border-color: rgba(255, 255, 255, .12);
    font-size: 26px;
}

.dxf-preview-stage {
    position: relative;
    height: min(68vh, 720px);
    min-height: 420px;
    overflow: hidden;
    background-color: #0a1b2c;
    background-image:
        linear-gradient(rgba(133, 176, 211, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(133, 176, 211, .07) 1px, transparent 1px);
    background-size: 28px 28px;
    cursor: grab;
    touch-action: none;
    user-select: none;
}

.dxf-preview-stage.is-dragging {
    cursor: grabbing;
}

.dxf-preview-canvas,
.dxf-preview-canvas svg,
.dxf-preview-canvas img {
    display: block;
    width: 100%;
    height: 100%;
}

.dxf-preview-canvas img {
    object-fit: contain;
}

.dxf-preview-canvas svg * {
    fill: none !important;
    stroke: #4fd5ff !important;
    stroke-width: 1.6px !important;
    vector-effect: non-scaling-stroke;
}

.dxf-preview-loading {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    justify-items: center;
    gap: 12px;
    color: #d8edff;
    background: rgba(10, 27, 44, .9);
}

.dxf-preview-loading[hidden] {
    display: none;
}

.dxf-preview-loader {
    width: 34px;
    height: 34px;
    border: 3px solid rgba(216, 237, 255, .25);
    border-top-color: #4fd5ff;
    border-radius: 50%;
    animation: dxf-preview-spin .75s linear infinite;
}

.dxf-preview-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 46px;
    padding: 10px 18px;
    color: #64748b;
    background: #f7f9fb;
    font-size: 12px;
}

.dxf-preview-footer strong {
    color: #0f2742;
    text-align: right;
}

@keyframes dxf-preview-spin {
    to { transform: rotate(360deg); }
}

@media (max-width: 800px) {
    .dxf-preview-modal {
        padding: 8px;
    }

    .dxf-preview-dialog {
        width: 100%;
        max-height: 98vh;
    }

    .dxf-preview-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .dxf-preview-actions {
        width: 100%;
    }

    .dxf-preview-close {
        margin-left: auto;
    }

    .dxf-preview-stage {
        min-height: 360px;
    }

    .dxf-preview-footer {
        align-items: flex-start;
        flex-direction: column;
        gap: 5px;
    }

    .dxf-preview-footer strong {
        text-align: left;
    }
}