:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--surface:#fff;--surface-sunken:#f4f4f2;--page:#fafaf9;--stage:#111113;--ink:#16161a;--ink-muted:#6a6a74;--ink-faint:#9a9aa4;--line:#e7e7e4;--line-strong:#d6d6d1;--accent:#f2552c;--accent-soft:#f2552c1f;--accent-ink:#c53f1a;--danger:#b42318;--danger-soft:#fdf1ef;--success:#16704a;--success-soft:#eefaf3;--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--shadow-panel:0 1px 2px #1010140a, 0 12px 32px -20px #10101447;--font:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--page);min-height:100vh;color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-size:15px;line-height:1.5}h1,h2,h3,p{margin:0}button{font:inherit;color:inherit}code{font-family:var(--font-mono);background:#1010140f;border-radius:5px;padding:.1em .35em;font-size:.92em}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}.visually-hidden{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}.app{flex-direction:column;gap:clamp(16px,2.5vw,24px);width:100%;max-width:1440px;min-height:100vh;margin:0 auto;padding:clamp(16px,3vw,32px);display:flex}.header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.header__brand{align-items:center;gap:10px;display:flex}.header__mark{background:var(--ink);color:#fff;border-radius:9px;place-items:center;width:32px;height:32px;display:grid}.header__mark svg{fill:none;stroke:currentColor;stroke-width:1.6px;stroke-linecap:round;stroke-linejoin:round;width:20px;height:20px}.header__name{letter-spacing:-.02em;font-size:18px;font-weight:620}.header__meta{align-items:center;gap:10px;display:flex}.header__tag{letter-spacing:.01em;border:1px solid var(--line);background:var(--surface);color:var(--ink-muted);border-radius:999px;align-items:center;gap:6px;padding:5px 10px;font-size:12px;font-weight:550;display:inline-flex}.header__tag:before{content:"";background:var(--success);border-radius:50%;width:6px;height:6px}.header__blurb{color:var(--ink-faint);font-size:13px}.workspace{flex:1;grid-template-columns:minmax(0,1fr) 372px;align-items:start;gap:clamp(16px,2vw,24px);min-height:0;display:grid}.stage-column{flex-direction:column;gap:16px;min-width:0;display:flex}@media (width<=980px){.workspace{grid-template-columns:minmax(0,1fr)}}.view-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-panel);flex-direction:column;gap:12px;padding:clamp(12px,1.8vw,18px);display:flex}.view-panel__header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.view-panel__header-text{flex-direction:column;gap:3px;display:flex}.view-panel__title-row{align-items:center;gap:8px;display:flex}.view-panel__badge{text-transform:uppercase;letter-spacing:.05em;background:var(--surface-sunken);color:var(--ink-muted);border:1px solid var(--line);border-radius:999px;align-items:center;padding:2px 7px;font-size:11px;font-weight:650;line-height:1.2;display:inline-flex}.view-panel__title{letter-spacing:-.015em;color:var(--ink);font-size:16px;font-weight:650}.view-panel__subtitle{color:var(--ink-faint);font-size:12.5px}.view-panel__actions{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.view-panel__stage{border-radius:var(--radius-md);background:var(--stage);touch-action:manipulation;background-image:linear-gradient(45deg,#191919 25%,#0000 25%),linear-gradient(-45deg,#191919 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#191919 75%),linear-gradient(-45deg,#0000 75%,#191919 75%);background-position:0 0,0 9px,9px -9px,-9px 0;background-size:18px 18px;width:100%;height:clamp(240px,32vh,380px);display:block;position:relative;overflow:hidden}.source-panel .view-panel__stage{cursor:crosshair}.view-panel__stage:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.view-panel__stage--empty{background:var(--surface-sunken);border:1.5px dashed var(--line-strong);place-items:center;display:grid}.view-panel__frame{pointer-events:none;position:absolute}.view-panel__canvas{width:100%;height:100%;display:block}.view-panel__footer{color:var(--ink-faint);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;font-size:12px;display:flex}.view-panel__stat{color:var(--ink-muted)}.view-panel__stat strong{color:var(--ink);font-weight:550}.view-panel__meta{font-family:var(--font-mono);font-size:11.5px}.focal-crosshair{pointer-events:none;z-index:10;flex-direction:column;align-items:center;display:flex;position:absolute;transform:translate(-50%,-50%)}.focal-crosshair__reticle{filter:drop-shadow(0 0 1px #000000e6)drop-shadow(0 1px 4px #00000080);overflow:visible}.focal-crosshair__circle{fill:none;stroke:var(--accent);stroke-width:1.8px;animation:2.2s ease-in-out infinite focal-pulse}.focal-crosshair__dot{fill:var(--accent);stroke:#fff;stroke-width:1.4px}.focal-crosshair__tick{stroke:var(--accent);stroke-width:2px;stroke-linecap:round}.focal-crosshair__badge{font-family:var(--font-mono);color:#fff;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);white-space:nowrap;background:#16161ae0;border:1px solid #ffffff38;border-radius:999px;margin-top:4px;padding:2px 7px;font-size:10.5px;font-weight:550;box-shadow:0 2px 6px #00000059}@keyframes focal-pulse{0%{transform-origin:22px 22px;opacity:.85;transform:scale(.94)}50%{transform-origin:22px 22px;opacity:1;transform:scale(1.06)}to{transform-origin:22px 22px;opacity:.85;transform:scale(.94)}}.preview-badges{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.preview-badge{border:1px solid var(--line);background:var(--surface-sunken);color:var(--ink-muted);border-radius:999px;align-items:center;padding:3px 8px;font-size:11.5px;font-weight:550;display:inline-flex}.preview-badge--scale{font-family:var(--font-mono);color:var(--accent-ink);background:var(--accent-soft);border-color:#f2552c40;font-weight:600}.preview-badge--active{color:var(--success);background:var(--success-soft);border-color:#16704a33}.preview-badge--dim{color:var(--ink-faint)}.preview-empty-state{text-align:center;height:100%;color:var(--ink-muted);flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:24px;display:flex}.preview-empty-state__icon{background:var(--surface);border:1px solid var(--line);width:48px;height:48px;color:var(--ink-faint);border-radius:12px;place-items:center;margin-bottom:4px;display:grid}.preview-empty-state__title{color:var(--ink);font-size:14px;font-weight:600}.preview-empty-state__desc{color:var(--ink-faint);max-width:32ch;font-size:12.5px}.preview-transport-bar{flex-wrap:wrap;align-items:center;gap:12px;padding-top:4px;display:flex}.preview-transport-actions{align-items:center;gap:6px;display:flex}.preview-timeline-wrapper{flex:1;min-width:140px}.preview-timeline-wrapper .slider--timeline{margin-top:0}.preview-transport-meta{font-family:var(--font-mono);color:var(--ink-faint);font-variant-numeric:tabular-nums;white-space:nowrap;align-items:center;gap:10px;font-size:11.5px;display:flex}.preview-time{color:var(--ink-muted);font-weight:550}.preview-frames{color:var(--ink-faint)}.stage{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-panel);padding:clamp(10px,1.6vw,18px)}.stage__canvas-area{aspect-ratio:4/3;border-radius:var(--radius-md);background:var(--stage);cursor:crosshair;touch-action:manipulation;background-image:linear-gradient(45deg,#191919 25%,#0000 25%),linear-gradient(-45deg,#191919 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#191919 75%),linear-gradient(-45deg,#0000 75%,#191919 75%);background-position:0 0,0 9px,9px -9px,-9px 0;background-size:18px 18px;width:100%;display:block;position:relative;overflow:hidden}@media (width>=981px){.stage__canvas-area{aspect-ratio:3/2}}.stage__canvas-area:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.stage__frame{pointer-events:none;position:absolute}.stage__canvas{width:100%;height:100%;display:block}.stage__marker{pointer-events:none;opacity:1;place-items:center;width:0;height:0;transition:opacity .16s;display:grid;position:absolute;transform:translate(-50%,-50%)}.stage__marker.is-playing{opacity:.5}.stage__marker-ring,.stage__marker-dot{border-radius:50%;position:absolute;transform:translate(-50%,-50%)}.stage__marker-ring{width:var(--marker-size,54px);height:var(--marker-size,54px);border:1.5px solid var(--accent);box-shadow:0 0 0 1px #00000059,0 0 0 4px #f2552c2e}.stage__marker-dot{width:calc(var(--marker-size,54px) * .15);height:calc(var(--marker-size,54px) * .15);background:var(--accent);box-shadow:0 0 0 1.5px #0006}.stage__marker:not(.is-playing) .stage__marker-ring{animation:2.4s ease-out infinite marker-pulse}@keyframes marker-pulse{0%{opacity:.9;transform:translate(-50%,-50%)scale(.72)}70%{opacity:0;transform:translate(-50%,-50%)scale(1.12)}to{opacity:0;transform:translate(-50%,-50%)scale(1.12)}}.stage-bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.stage-bar__hint{color:var(--ink-faint);font-size:12.5px}.stage-bar__actions{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.stage-source{font-family:var(--font-mono);color:var(--ink-faint);letter-spacing:-.01em;font-size:11.5px}.dropzone{text-align:center;background:var(--surface);border:1.5px dashed var(--line-strong);border-radius:var(--radius-lg);min-height:clamp(320px,52vh,620px);box-shadow:var(--shadow-panel);flex-direction:column;justify-content:center;align-items:center;gap:10px;padding:clamp(32px,7vw,72px) clamp(20px,4vw,40px);transition:border-color .16s,background .16s,transform .16s;display:flex}@media (width>=981px){.dropzone{aspect-ratio:3/2;min-height:0}}.dropzone.is-dragging{border-color:var(--accent);background:var(--accent-soft)}.dropzone__mark{background:var(--surface-sunken);width:56px;height:56px;color:var(--ink-muted);border-radius:16px;place-items:center;margin-bottom:4px;display:grid}.dropzone__mark svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:30px;height:30px}.dropzone__title{letter-spacing:-.015em;font-size:19px;font-weight:600}.dropzone__subtitle{max-width:40ch;color:var(--ink-muted);margin-bottom:8px;font-size:14px}.dropzone__hint{color:var(--ink-faint);margin-top:2px;font-size:12px}.button{letter-spacing:-.005em;cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:6px;padding:9px 16px;font-size:14px;font-weight:550;transition:background .14s,border-color .14s,color .14s,opacity .14s,transform .12s;display:inline-flex}.button:active:not(:disabled){transform:translateY(.5px)}.button:disabled{cursor:not-allowed;opacity:.5}.button--primary{background:var(--ink);color:#fff}.button--primary:hover:not(:disabled){background:#000}.button--ghost{background:var(--surface);border-color:var(--line-strong);color:var(--ink)}.button--ghost:hover:not(:disabled){border-color:var(--ink-faint);background:var(--surface-sunken)}.button--sm{border-radius:9px;padding:6px 11px;font-size:13px}.button--block{width:100%;padding:11px 16px;font-size:15px}.replace.is-dragging{outline:1.5px dashed var(--accent);outline-offset:3px;border-radius:9px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-panel);flex-direction:column;padding:4px 18px 18px;display:flex;position:sticky;top:clamp(16px,3vw,32px)}@media (width<=980px){.panel{position:static}}.panel__section{border-bottom:1px solid var(--line);padding:16px 0}.panel__section:last-of-type{border-bottom:none}.panel__section-title{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);align-items:center;gap:8px;margin-bottom:12px;font-size:12px;font-weight:600;display:flex}.panel__step{background:var(--surface-sunken);width:18px;height:18px;color:var(--ink-muted);letter-spacing:0;border-radius:50%;place-items:center;font-size:10px;display:grid}.panel__note{color:var(--ink-muted);font-size:13px}.panel__footer{border-top:1px solid var(--line);flex-direction:column;gap:10px;padding-top:16px;display:flex}.panel__summary{font-family:var(--font-mono);color:var(--ink-faint);letter-spacing:-.01em;font-size:11.5px}.panel__legal{color:var(--ink-faint);text-align:center;font-size:11.5px}.field+.field{margin-top:16px}.field__row{justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:8px;display:flex}.field__label{color:var(--ink);margin-bottom:8px;font-size:13px;font-weight:550;display:block}.field__row .field__label{margin-bottom:0}.field__value{font-family:var(--font-mono);color:var(--ink-muted);font-size:12px}.field__hint{color:var(--ink-faint);margin-top:7px;font-size:11.5px}.segmented{background:var(--surface-sunken);border-radius:11px;grid-auto-columns:1fr;grid-auto-flow:column;gap:2px;padding:2px;display:grid}.segmented__item{appearance:none;color:var(--ink-muted);cursor:pointer;background:0 0;border:none;border-radius:9px;padding:7px 4px;font-size:13px;font-weight:520;transition:background .14s,color .14s,box-shadow .14s}.segmented__item:hover:not(.is-active):not(:disabled){color:var(--ink)}.segmented__item.is-active{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px #10101414}.segmented__item:disabled{cursor:not-allowed;opacity:.5}.slider{appearance:none;cursor:pointer;background:0 0;width:100%;height:18px;display:block}.slider::-webkit-slider-runnable-track{background:linear-gradient(to right, var(--accent) 0%, var(--accent) var(--slider-fill,0%), var(--line-strong) var(--slider-fill,0%), var(--line-strong) 100%);border-radius:999px;height:4px}.slider::-moz-range-track{background:linear-gradient(to right, var(--accent) 0%, var(--accent) var(--slider-fill,0%), var(--line-strong) var(--slider-fill,0%), var(--line-strong) 100%);border-radius:999px;height:4px}.slider::-webkit-slider-thumb{appearance:none;background:var(--surface);border:1px solid var(--line-strong);border-radius:50%;width:15px;height:15px;margin-top:-5.5px;box-shadow:0 1px 3px #10101438}.slider::-moz-range-thumb{background:var(--surface);border:1px solid var(--line-strong);border-radius:50%;width:15px;height:15px;box-shadow:0 1px 3px #10101438}.slider:disabled{cursor:not-allowed;opacity:.5}.slider--timeline{margin-top:12px}.switch{cursor:pointer;align-items:flex-start;gap:10px;margin-top:16px;display:flex}.switch__input{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.switch__track{background:var(--line-strong);border-radius:999px;flex:none;width:36px;height:21px;margin-top:1px;padding:2px;transition:background .16s}.switch__thumb{background:#fff;border-radius:50%;width:17px;height:17px;transition:transform .16s cubic-bezier(.32,.72,0,1);display:block;box-shadow:0 1px 3px #1010144d}.switch__input:checked+.switch__track{background:var(--ink)}.switch__input:checked+.switch__track .switch__thumb{transform:translate(15px)}.switch__input:focus-visible+.switch__track{outline:2px solid var(--accent);outline-offset:2px}.switch.is-disabled{opacity:.5;cursor:not-allowed}.switch__text{flex-direction:column;gap:1px;display:flex}.switch__label{font-size:13px;font-weight:550}.switch__description{color:var(--ink-faint);font-size:11.5px}.transport{align-items:center;gap:8px;display:flex}.transport__time{font-family:var(--font-mono);color:var(--ink-muted);font-variant-numeric:tabular-nums;margin-left:auto;font-size:12px}.progress{background:var(--surface-sunken);border-radius:999px;place-items:center;height:22px;display:grid;position:relative;overflow:hidden}.progress__bar{background:var(--accent-soft);transition:width .12s linear;position:absolute;inset:0 auto 0 0}.progress__label{color:var(--ink-muted);font-variant-numeric:tabular-nums;font-size:11px;font-weight:550;position:relative}.notice{border-radius:var(--radius-md);padding:10px 13px;font-size:12.5px;line-height:1.45}.notice--error{background:var(--danger-soft);color:var(--danger);border:1px solid #b4231838}.notice--ok{background:var(--success-soft);color:var(--success);border:1px solid #16704a33}.notice--warn{color:#8a5a08;background:#fff8ed;border:1px solid #b4781438}.notice code{background:#16704a1f}