.era-dxf-tool {
    --era-green: #6d9b83;
    --era-green-dark: #355d4a;
    --era-mint: #edf5f0;
    --era-ink: #26352d;
    --era-muted: #65736b;
    box-sizing: border-box;
    max-width: 1100px;
    margin: 28px auto;
    padding: clamp(18px, 3vw, 34px);
    color: var(--era-ink);
    background: #fff;
    border: 1px solid #dfe9e2;
    border-radius: 18px;
    box-shadow: 0 8px 28px rgba(31, 57, 43, .07);
    font-family: inherit;
}
.era-dxf-tool * { box-sizing: border-box; }
.era-dxf-heading { margin-bottom: 22px; }
.era-dxf-eyebrow {
    display: inline-block;
    margin-bottom: 8px;
    color: var(--era-green-dark);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .12em;
}
.era-dxf-heading h2 {
    margin: 0 0 10px;
    color: var(--era-ink);
    font-size: clamp(24px, 3vw, 34px);
    line-height: 1.2;
}
.era-dxf-heading p { margin: 0; max-width: 720px; color: var(--era-muted); line-height: 1.6; }
.era-dxf-upload {
    display: flex;
    min-height: 190px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 25px;
    border: 2px dashed #a9c7b5;
    border-radius: 14px;
    background: #f8fbf9;
    text-align: center;
    cursor: pointer;
    transition: background .2s, border-color .2s;
}
.era-dxf-upload:hover, .era-dxf-upload.era-dxf-dragging { background: var(--era-mint); border-color: var(--era-green); }
.era-dxf-upload-icon {
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    border-radius: 50%;
    background: #dcebe1;
    color: var(--era-green-dark);
    font-size: 28px;
    line-height: 1;
}
.era-dxf-upload strong { font-size: 17px; }
.era-dxf-upload span:not(.era-dxf-upload-icon) { color: var(--era-muted); font-size: 14px; }
.era-dxf-upload small { color: #7c8981; font-size: 12px; }
.era-dxf-file { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
.era-dxf-upload-compact { min-height: auto; margin-bottom: 18px; padding: 12px; flex-direction: row; justify-content: flex-start; gap: 12px; }
.era-dxf-upload-compact .era-dxf-upload-icon { width: 32px; height: 32px; flex: 0 0 32px; font-size: 22px; }
.era-dxf-upload-compact span:not(.era-dxf-upload-icon), .era-dxf-upload-compact small { display: none; }
.era-dxf-upload-compact strong { font-size: 14px; }
.era-dxf-error { display: none; margin: 14px 0; padding: 12px 14px; border: 1px solid #efc6c6; border-radius: 9px; background: #fff4f4; color: #8a2929; font-size: 14px; line-height: 1.5; }
.era-dxf-workspace { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(260px, .85fr); gap: 22px; margin-top: 22px; }
.era-dxf-workspace[hidden] { display: none; }
.era-dxf-preview-panel, .era-dxf-settings { min-width: 0; padding: 17px; border: 1px solid #e1e9e4; border-radius: 13px; }
.era-dxf-panel-title { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.era-dxf-panel-title strong, .era-dxf-settings h3 { margin: 0; font-size: 16px; }
.era-dxf-status { color: var(--era-muted); font-size: 12px; }
.era-dxf-canvas-wrap { display: grid; min-height: 300px; place-items: center; overflow: auto; padding: 12px; border: 1px solid #e4e8e5; border-radius: 8px; background-color: #f4f6f4; background-image: linear-gradient(45deg,#e9edea 25%,transparent 25%),linear-gradient(-45deg,#e9edea 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e9edea 75%),linear-gradient(-45deg,transparent 75%,#e9edea 75%); background-size: 18px 18px; background-position: 0 0,0 9px,9px -9px,-9px 0; }
.era-dxf-canvas { display: block; max-width: 100%; max-height: 520px; width: auto; height: auto; image-rendering: pixelated; box-shadow: 0 1px 8px rgba(0,0,0,.08); }
.era-dxf-hint, .era-dxf-footer { color: var(--era-muted); font-size: 12px; line-height: 1.55; }
.era-dxf-hint { margin: 12px 0 0; }
.era-dxf-settings h3 { margin-bottom: 20px; }
.era-dxf-control { display: block; margin-bottom: 19px; }
.era-dxf-control > span { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 8px; font-size: 13px; font-weight: 700; }
.era-dxf-control output { color: var(--era-green-dark); }
.era-dxf-control input[type="range"] { width: 100%; accent-color: var(--era-green-dark); }
.era-dxf-control input[type="number"] { width: 100%; min-height: 40px; padding: 8px 10px; border: 1px solid #cfdcd3; border-radius: 7px; font: inherit; }
.era-dxf-control small { display: block; margin-top: 6px; color: var(--era-muted); font-size: 11px; line-height: 1.45; }
.era-dxf-check { display: flex; align-items: center; gap: 9px; margin: 0 0 20px; font-size: 13px; }
.era-dxf-check input { accent-color: var(--era-green-dark); }
.era-dxf-summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 22px 0 14px; padding: 12px; border-radius: 8px; background: var(--era-mint); font-size: 13px; }
.era-dxf-summary strong { color: var(--era-green-dark); font-size: 17px; }
.era-dxf-download, .era-dxf-reset { display: block; width: 100%; min-height: 44px; padding: 10px 15px; border-radius: 8px; font: inherit; font-size: 14px; font-weight: 700; cursor: pointer; transition: opacity .2s, background .2s; }
.era-dxf-download { border: 1px solid var(--era-green-dark); background: var(--era-green-dark); color: #fff; }
.era-dxf-download:hover:not(:disabled) { background: #264736; }
.era-dxf-download:disabled { opacity: .45; cursor: not-allowed; }
.era-dxf-reset { margin-top: 9px; border: 1px solid #d4e0d7; background: #fff; color: var(--era-green-dark); }
.era-dxf-reset:hover { background: #f4f8f5; }
.era-dxf-local-note { margin: 12px 0 0; color: var(--era-muted); font-size: 11px; line-height: 1.5; }
.era-dxf-footer { margin: 18px 0 0; }
@media (max-width: 760px) {
    .era-dxf-workspace { grid-template-columns: 1fr; }
    .era-dxf-canvas-wrap { min-height: 220px; }
    .era-dxf-upload-compact { align-items: flex-start; }
}