.dtr-stl-app,
.dtr-stl-app * { box-sizing: border-box; }
.dtr-stl-app [hidden] { display: none !important; }
.dtr-stl-app {
    --dtr-bg: #07111f;
    --dtr-panel: #0d1a2b;
    --dtr-panel-2: #101f33;
    --dtr-line: rgba(255,255,255,.11);
    --dtr-text: #f5f7fb;
    --dtr-muted: #99a8bc;
    --dtr-accent: #53e3b0;
    --dtr-accent-2: #7ca7ff;
    --dtr-danger: #ff8b8b;
    --dtr-radius: 22px;
    color: var(--dtr-text);
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    width: min(1480px, calc(100vw - 22px));
    margin: 24px 0 64px 50%;
    transform: translateX(-50%);
    isolation: isolate;
}
.dtr-stl-app button,
.dtr-stl-app input { font: inherit; }
.dtr-shell {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--dtr-line);
    border-radius: 30px;
    background:
        radial-gradient(circle at 8% -5%, rgba(83,227,176,.16), transparent 31%),
        radial-gradient(circle at 96% 8%, rgba(124,167,255,.15), transparent 35%),
        var(--dtr-bg);
    box-shadow: 0 34px 90px rgba(0,0,0,.28);
    padding: clamp(18px, 3vw, 46px);
}
.dtr-shell::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: .18;
    background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(to bottom, #000, transparent 55%);
}
.dtr-language { position: relative; z-index: 2; display: flex; justify-content: flex-end; gap: 7px; }
.dtr-language a { color: var(--dtr-muted); text-decoration: none; border: 1px solid var(--dtr-line); border-radius: 999px; padding: 7px 12px; font-size: 13px; font-weight: 700; }
.dtr-language a.is-active { color: #06130f; background: var(--dtr-accent); border-color: var(--dtr-accent); }
.dtr-hero { position: relative; z-index: 2; max-width: 980px; padding: clamp(30px, 6vw, 82px) 0 34px; }
.dtr-eyebrow { margin: 0 0 12px; color: var(--dtr-accent); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.dtr-hero h1, .dtr-guide h2, .dtr-faq h2 { color: var(--dtr-text); text-wrap: balance; }
.dtr-hero h1 { margin: 0; max-width: 950px; font-size: clamp(40px, 7vw, 88px); line-height: .98; letter-spacing: -.055em; font-weight: 850; }
.dtr-lead { margin: 24px 0 0; max-width: 790px; color: #c7d0df; font-size: clamp(17px, 2vw, 22px); line-height: 1.55; }
.dtr-proof-row { margin-top: 27px; display: flex; flex-wrap: wrap; gap: 8px; }
.dtr-proof-row span { border: 1px solid var(--dtr-line); color: var(--dtr-muted); padding: 7px 10px; border-radius: 8px; font-size: 11px; font-weight: 800; letter-spacing: .09em; }
.dtr-tool { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(310px, .78fr) minmax(460px, 1.22fr); border: 1px solid var(--dtr-line); background: rgba(8,18,31,.82); backdrop-filter: blur(20px); border-radius: var(--dtr-radius); overflow: hidden; box-shadow: 0 28px 70px rgba(0,0,0,.32); }
.dtr-controls { padding: clamp(18px, 2.5vw, 34px); border-right: 1px solid var(--dtr-line); background: rgba(7,15,26,.72); }
.dtr-upload { min-height: 180px; border: 1.5px dashed rgba(124,167,255,.4); border-radius: 18px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 7px; padding: 24px; text-align: center; cursor: pointer; background: linear-gradient(145deg, rgba(124,167,255,.08), rgba(83,227,176,.04)); transition: border-color .2s ease, transform .2s ease, background .2s ease; }
.dtr-upload:hover, .dtr-upload:focus, .dtr-upload.is-dragging { outline: none; border-color: var(--dtr-accent); background: rgba(83,227,176,.08); transform: translateY(-1px); }
.dtr-upload-icon { color: var(--dtr-accent-2); }
.dtr-upload strong { color: var(--dtr-text); font-size: 18px; }
.dtr-upload small { color: var(--dtr-muted); line-height: 1.45; }
.dtr-file-name { max-width: 100%; margin-top: 5px; color: var(--dtr-accent); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtr-upload-actions, .dtr-generate-row { display: flex; gap: 9px; margin-top: 12px; }
.dtr-btn { appearance: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 42px; border: 1px solid var(--dtr-line); border-radius: 11px; background: rgba(255,255,255,.045); color: var(--dtr-text); padding: 9px 14px; cursor: pointer; text-decoration: none !important; font-size: 13px; line-height: 1; font-weight: 750; transition: transform .15s ease, border-color .15s ease, background .15s ease, opacity .15s ease; }
.dtr-btn:hover:not(:disabled) { transform: translateY(-1px); border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.08); color: var(--dtr-text); }
.dtr-btn:disabled { opacity: .38; cursor: not-allowed; }
.dtr-btn-primary { color: #07150f; background: var(--dtr-accent); border-color: var(--dtr-accent); }
.dtr-btn-primary:hover:not(:disabled) { color: #07150f; background: #73edc1; }
.dtr-btn-quiet { margin-left: auto; color: var(--dtr-muted); }
.dtr-fieldset { border: 0; padding: 0; margin: 25px 0 0; min-width: 0; }
.dtr-fieldset legend, .dtr-details summary { color: #dce5f2; font-size: 13px; font-weight: 800; letter-spacing: .02em; }
.dtr-segments { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; margin-top: 10px; padding: 5px; background: rgba(255,255,255,.045); border: 1px solid var(--dtr-line); border-radius: 13px; }
.dtr-segments button, .dtr-tabs button { border: 0; background: transparent; color: var(--dtr-muted); cursor: pointer; border-radius: 9px; font-size: 12px; font-weight: 800; }
.dtr-segments button { min-height: 39px; padding: 7px 5px; }
.dtr-segments button.is-active { color: #07150f; background: var(--dtr-accent); box-shadow: 0 6px 18px rgba(83,227,176,.18); }
.dtr-details { margin-top: 18px; border-top: 1px solid var(--dtr-line); }
.dtr-details summary { padding: 17px 0 4px; cursor: pointer; list-style: none; }
.dtr-details summary::-webkit-details-marker { display: none; }
.dtr-details summary::after { content: "+"; float: right; color: var(--dtr-muted); font-size: 18px; line-height: .8; }
.dtr-details[open] summary::after { content: "−"; }
.dtr-detail-body { padding-top: 12px; }
.dtr-switch-row { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.dtr-switch { min-height: 44px; display: flex; align-items: center; gap: 9px; color: #cbd5e3; font-size: 12px; cursor: pointer; padding: 9px; border: 1px solid var(--dtr-line); border-radius: 11px; }
.dtr-switch input { position: absolute; opacity: 0; pointer-events: none; }
.dtr-switch span { width: 31px; height: 18px; flex: 0 0 auto; border-radius: 999px; background: #334155; position: relative; transition: background .2s ease; }
.dtr-switch span::after { content: ""; width: 12px; height: 12px; border-radius: 50%; background: #fff; position: absolute; top: 3px; left: 3px; transition: transform .2s ease; }
.dtr-switch input:checked + span { background: var(--dtr-accent); }
.dtr-switch input:checked + span::after { transform: translateX(13px); }
.dtr-range { display: block; margin-top: 14px; }
.dtr-range > span, .dtr-detail-field > span { display: flex; justify-content: space-between; color: var(--dtr-muted); font-size: 12px; margin-bottom: 7px; }
.dtr-range output, .dtr-detail-field output { color: #dce5f2; font-variant-numeric: tabular-nums; }
.dtr-range input, .dtr-detail-field input { width: 100%; accent-color: var(--dtr-accent); }
.dtr-threshold.is-hidden { display: none; }
.dtr-grid-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.dtr-grid-fields label { min-width: 0; color: var(--dtr-muted); font-size: 11px; }
.dtr-grid-fields label > span { display: block; margin-bottom: 6px; }
.dtr-grid-fields label > div { position: relative; }
.dtr-grid-fields input[type="number"], .dtr-grid-fields input[type="text"] { width: 100%; height: 42px; border: 1px solid var(--dtr-line); border-radius: 10px; background: rgba(255,255,255,.045); color: var(--dtr-text); padding: 0 42px 0 11px; font-variant-numeric: tabular-nums; }
.dtr-grid-fields input:focus { outline: 2px solid rgba(83,227,176,.28); border-color: var(--dtr-accent); }
.dtr-grid-fields em { position: absolute; right: 11px; top: 50%; transform: translateY(-50%); color: var(--dtr-muted); font-size: 11px; font-style: normal; }
.dtr-detail-field { grid-column: 1 / -1; margin-top: 3px; }
.dtr-generate-row { margin-top: 24px; }
.dtr-btn-generate, .dtr-btn-download { min-height: 50px; flex: 1; }
.dtr-btn-generate { background: linear-gradient(135deg, var(--dtr-accent), #93f3cf); border-color: transparent; color: #06130f; }
.dtr-btn-download { border-color: rgba(124,167,255,.45); background: rgba(124,167,255,.1); }
.dtr-status { min-height: 20px; margin-top: 12px; color: var(--dtr-muted); font-size: 12px; line-height: 1.5; }
.dtr-status.is-error { color: var(--dtr-danger); }
.dtr-status.is-success { color: var(--dtr-accent); }
.dtr-progress { height: 4px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; margin-top: 9px; }
.dtr-progress span { display: block; width: 35%; height: 100%; background: var(--dtr-accent); border-radius: inherit; animation: dtr-progress 1s ease-in-out infinite alternate; }
@keyframes dtr-progress { to { transform: translateX(185%); } }
.dtr-preview-panel { min-width: 0; padding: clamp(16px, 2.5vw, 30px); display: flex; flex-direction: column; }
.dtr-preview-head { display: flex; justify-content: space-between; gap: 14px; align-items: center; margin-bottom: 12px; }
.dtr-tabs { display: inline-flex; gap: 4px; padding: 4px; border: 1px solid var(--dtr-line); border-radius: 11px; background: rgba(255,255,255,.04); }
.dtr-tabs button { min-height: 34px; padding: 7px 12px; }
.dtr-tabs button.is-active { color: var(--dtr-text); background: rgba(255,255,255,.1); }
.dtr-drag-help { color: var(--dtr-muted); font-size: 11px; }
.dtr-canvas-wrap { position: relative; height: clamp(480px, 48vw, 620px); min-height: 0; flex: 0 0 auto; border: 1px solid var(--dtr-line); border-radius: 17px; overflow: hidden; background: radial-gradient(circle at 50% 42%, #182a42 0, #0a1422 57%, #07101c 100%); }
.dtr-canvas-wrap::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(transparent 94%, rgba(255,255,255,.08) 95%); background-size: 100% 32px; opacity: .25; }
.dtr-canvas-wrap canvas { display: block; width: 100%; height: 100%; min-height: 0; cursor: grab; position: relative; z-index: 1; }
.dtr-canvas-wrap canvas:active { cursor: grabbing; }
.dtr-empty-preview { position: absolute; z-index: 2; inset: 0; display: flex; flex-direction: column; justify-content: center; align-items: center; color: var(--dtr-muted); text-align: center; padding: 30px; pointer-events: none; }
.dtr-empty-preview p { max-width: 260px; line-height: 1.5; }
.dtr-cube { position: relative; width: 72px; height: 72px; transform: rotate(30deg) skew(-8deg); margin-bottom: 22px; }
.dtr-cube span { position: absolute; inset: 0; border: 1px solid rgba(83,227,176,.55); background: rgba(83,227,176,.06); }
.dtr-cube span:nth-child(2) { transform: translate(18px,-18px); border-color: rgba(124,167,255,.55); }
.dtr-cube span:nth-child(3) { transform: translate(36px,-36px); opacity: .4; }
.dtr-stats { display: grid; grid-template-columns: 1.25fr .8fr .8fr; gap: 8px; margin: 12px 0 0; }
.dtr-stats div { border: 1px solid var(--dtr-line); background: rgba(255,255,255,.035); border-radius: 12px; padding: 12px; }
.dtr-stats dt { color: var(--dtr-muted); font-size: 10px; text-transform: uppercase; letter-spacing: .08em; }
.dtr-stats dd { margin: 5px 0 0; color: #e8eef7; font-size: 13px; font-weight: 800; font-variant-numeric: tabular-nums; }
.dtr-privacy { display: flex; gap: 12px; align-items: flex-start; margin-top: 12px; padding: 14px; border: 1px solid rgba(83,227,176,.23); border-radius: 13px; background: rgba(83,227,176,.055); color: var(--dtr-accent); }
.dtr-privacy svg { flex: 0 0 auto; }
.dtr-privacy strong { color: #dffbf1; font-size: 13px; }
.dtr-privacy p { color: var(--dtr-muted); font-size: 11px; line-height: 1.5; margin: 4px 0 0; }
.dtr-ad { position: relative; z-index: 2; min-height: 100px; margin: 20px 0; display: grid; place-items: center; overflow: hidden; }
.dtr-share { position: relative; z-index: 2; display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--dtr-line); }
.dtr-share strong { font-size: 14px; }
.dtr-share > div { display: flex; flex-wrap: wrap; gap: 8px; }
.dtr-guide { position: relative; z-index: 2; padding: clamp(56px, 8vw, 104px) 0 40px; }
.dtr-guide-intro { max-width: 850px; }
.dtr-guide h2, .dtr-faq h2 { margin: 0; font-size: clamp(32px, 5vw, 58px); line-height: 1.04; letter-spacing: -.04em; }
.dtr-guide-intro > p:last-child { margin-top: 20px; color: #b7c3d3; font-size: 17px; line-height: 1.75; }
.dtr-guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; margin-top: 38px; }
.dtr-guide-grid section { padding: clamp(20px, 3vw, 32px); border: 1px solid var(--dtr-line); border-radius: 18px; background: rgba(255,255,255,.035); }
.dtr-guide-grid section > span { color: var(--dtr-accent); font-size: 11px; font-weight: 900; letter-spacing: .12em; }
.dtr-guide-grid h3 { color: #eef3fa; margin: 21px 0 12px; font-size: 19px; }
.dtr-guide-grid p { margin: 0; color: var(--dtr-muted); line-height: 1.7; font-size: 14px; }
.dtr-guide-grid strong { color: #dfe8f4; }
.dtr-faq { position: relative; z-index: 2; max-width: 980px; padding: 40px 0 30px; }
.dtr-faq h2 { margin-bottom: 28px; }
.dtr-faq details { border-top: 1px solid var(--dtr-line); }
.dtr-faq details:last-child { border-bottom: 1px solid var(--dtr-line); }
.dtr-faq summary { cursor: pointer; list-style: none; color: #e5ecf6; font-size: 16px; font-weight: 750; padding: 20px 34px 20px 0; position: relative; }
.dtr-faq summary::-webkit-details-marker { display: none; }
.dtr-faq summary::after { content: "+"; position: absolute; right: 2px; color: var(--dtr-accent); }
.dtr-faq details[open] summary::after { content: "−"; }
.dtr-faq p { max-width: 790px; margin: 0; padding: 0 0 22px; color: var(--dtr-muted); line-height: 1.7; }
@media (max-width: 1000px) {
    .dtr-tool { grid-template-columns: 1fr; }
    .dtr-controls { border-right: 0; border-bottom: 1px solid var(--dtr-line); }
    .dtr-canvas-wrap { height: 500px; }
    .dtr-guide-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .dtr-stl-app { width: calc(100vw - 10px); margin-top: 5px; }
    .dtr-shell { border-radius: 20px; padding: 14px; }
    .dtr-language { padding-top: 4px; }
    .dtr-hero { padding-top: 38px; }
    .dtr-hero h1 { font-size: clamp(40px, 12vw, 58px); }
    .dtr-tool { border-radius: 17px; }
    .dtr-controls, .dtr-preview-panel { padding: 14px; }
    .dtr-upload-actions { display: grid; grid-template-columns: 1fr 1fr; }
    .dtr-btn-quiet { margin-left: 0; grid-column: 1 / -1; }
    .dtr-segments { grid-template-columns: 1fr 1fr; }
    .dtr-switch-row { grid-template-columns: 1fr; }
    .dtr-generate-row { flex-direction: column; }
    .dtr-preview-head { align-items: flex-start; flex-direction: column; }
    .dtr-drag-help { display: none; }
    .dtr-canvas-wrap { height: 350px; }
    .dtr-stats { grid-template-columns: 1fr; }
    .dtr-share { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
    .dtr-stl-app *, .dtr-stl-app *::before, .dtr-stl-app *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}