:root{--mh-bg:#1b1b1d;--mh-surface-1:#232326;--mh-surface-2:#2b2b2f;--mh-surface-3:#35353a;--mh-surface-4:#424248;--mh-canvas:#111113;--mh-border:#36363c;--mh-border-strong:#4c4c54;--mh-text:#f1f0ee;--mh-text-muted:#c7c6c2;--mh-text-dim:#96959a;--mh-accent:#e9a93a;--mh-accent-hover:#f0b955;--mh-accent-soft:#e9a93a29;--mh-on-accent:#1c1d20;--mh-danger:#e5675f;--mh-success:#4fae73;--mh-select:#4c8dff;--mh-radius:6px;--mh-radius-lg:10px;--mh-shadow:0 10px 30px #00000073;--mh-font:"IBM Plex Sans Arabic", "Segoe UI", system-ui, sans-serif;--mh-video:#3f6fb5;--mh-image:#4a8c6f;--mh-audio:#2f8a8a;--mh-text-clip:#8a5cc2;--mh-caption:#b8862f;--mh-overlay:#b0546e}.mh-app,.mh-start{font-family:var(--mh-font);color:var(--mh-text);background:var(--mh-bg);-webkit-font-smoothing:antialiased;font-size:13px}.mh-app *,.mh-start *,.mh-dialog *{box-sizing:border-box}.mh-app button,.mh-start button,.mh-dialog button,.mh-app input,.mh-app select,.mh-app textarea,.mh-start input,.mh-start textarea,.mh-dialog input,.mh-dialog select,.mh-dialog textarea{font:inherit;color:inherit}.mh-button{border:1px solid var(--mh-border-strong);border-radius:var(--mh-radius);background:var(--mh-surface-3);cursor:pointer;white-space:nowrap;align-items:center;gap:6px;min-height:32px;padding:0 12px;text-decoration:none;display:inline-flex}.mh-button:hover:not(:disabled){background:var(--mh-surface-4)}.mh-button:disabled{opacity:.45;cursor:default}.mh-button.is-primary{background:var(--mh-accent);border-color:var(--mh-accent);color:var(--mh-on-accent);font-weight:600}.mh-button.is-primary:hover:not(:disabled){background:var(--mh-accent-hover)}.mh-button.is-ghost{background:0 0;border-color:#0000}.mh-button.is-ghost:hover:not(:disabled){background:var(--mh-surface-3)}.mh-button.is-danger{color:var(--mh-danger)}.mh-icon-button{border-radius:var(--mh-radius);cursor:pointer;background:0 0;border:0;place-items:center;width:32px;height:32px;display:inline-grid}.mh-icon-button:hover:not(:disabled){background:var(--mh-surface-3)}.mh-icon-button:disabled{opacity:.35;cursor:default}.mh-icon-button.is-on{background:var(--mh-accent-soft);color:var(--mh-accent)}.mh-field{color:var(--mh-text-muted);gap:4px;font-size:12px;display:grid}.mh-input,.mh-select,.mh-textarea{border:1px solid var(--mh-border);border-radius:var(--mh-radius);background:var(--mh-canvas);width:100%;min-height:30px;color:var(--mh-text);padding:4px 8px}.mh-textarea{resize:vertical;min-height:72px;line-height:1.6}.mh-input:focus,.mh-select:focus,.mh-textarea:focus{outline:2px solid var(--mh-accent);outline-offset:-1px}.mh-range{color:var(--mh-text-muted);grid-template-columns:minmax(70px,.9fr) 1.6fr 52px;align-items:center;gap:8px;font-size:12px;display:grid}.mh-range input[type=range]{width:100%;accent-color:var(--mh-accent)}.mh-range output{text-align:end;font-variant-numeric:tabular-nums;color:var(--mh-text)}.mh-swatch{border:1px solid var(--mh-border-strong);border-radius:var(--mh-radius);cursor:pointer;background:0 0;width:30px;height:30px;padding:0}.mh-row{align-items:center;gap:8px;display:flex}.mh-gap{flex:1}.mh-chips{flex-wrap:wrap;gap:6px;display:flex}.mh-chip{border:1px solid var(--mh-border);background:var(--mh-surface-2);cursor:pointer;border-radius:999px;padding:5px 10px;font-size:12px}.mh-chip:hover{border-color:var(--mh-border-strong)}.mh-chip.is-on{border-color:var(--mh-accent);background:var(--mh-accent-soft);color:var(--mh-accent)}.mh-chip .mh-chip-hint{color:var(--mh-text-dim);margin-inline-start:4px}.mh-note{color:var(--mh-text-dim);margin:0;font-size:12px;line-height:1.6}.mh-error{color:var(--mh-danger);margin:0;font-size:12px;line-height:1.6}.mh-suggested{color:var(--mh-accent);align-items:center;gap:4px;font-size:11px;display:inline-flex}.mh-menu{display:inline-flex;position:relative}.mh-menu-panel{z-index:50;border:1px solid var(--mh-border-strong);border-radius:var(--mh-radius-lg);background:var(--mh-surface-2);min-width:240px;box-shadow:var(--mh-shadow);padding:6px;position:absolute;inset-block-start:calc(100% + 4px);inset-inline-start:0}.mh-menu-item{border-radius:var(--mh-radius);text-align:start;cursor:pointer;background:0 0;border:0;align-items:center;gap:10px;width:100%;min-height:32px;padding:0 10px;display:flex}.mh-menu-item:hover:not(:disabled){background:var(--mh-surface-3)}.mh-menu-item:disabled{opacity:.45}.mh-menu-item span{flex:1}.mh-menu-item kbd{color:var(--mh-text-dim);font:11px var(--mh-font)}.mh-menu-rule{background:var(--mh-border);height:1px;margin:4px 0}.mh-app{grid-template-rows:48px minmax(200px, 1fr) var(--mh-timeline-height,300px);height:100dvh;display:grid;overflow:hidden}.mh-topbar{border-block-end:1px solid var(--mh-border);background:var(--mh-surface-1);align-items:center;gap:6px;min-width:0;padding:0 10px;display:flex}.mh-brand{color:var(--mh-text);cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;padding:0 6px;font-size:15px;font-weight:700;text-decoration:none;display:inline-flex}.mh-brand svg{color:var(--mh-accent)}.mh-title-input{border-radius:var(--mh-radius);width:min(260px,26vw);min-height:30px;color:var(--mh-text);background:0 0;border:1px solid #0000;padding:0 8px;font-weight:600}.mh-title-input:hover,.mh-title-input:focus{border-color:var(--mh-border);background:var(--mh-canvas);outline:none}.mh-save-state{color:var(--mh-text-dim);white-space:nowrap;font-size:12px}.mh-save-state.is-failed{color:var(--mh-danger)}.mh-main{grid-template-columns:minmax(250px,300px) minmax(0,1fr) minmax(260px,310px);min-height:0;display:grid}.mh-panel,.mh-inspector{background:var(--mh-surface-1);flex-direction:column;min-height:0;display:flex}.mh-panel{border-inline-end:1px solid var(--mh-border)}.mh-inspector{border-inline-start:1px solid var(--mh-border)}.mh-tabs{border-block-end:1px solid var(--mh-border);gap:1px;padding:6px 4px;display:flex}.mh-tab{white-space:nowrap;border-radius:var(--mh-radius);min-width:0;color:var(--mh-text-muted);cursor:pointer;background:0 0;border:0;flex-direction:column;flex:auto;align-items:center;gap:3px;padding:6px 0 5px;font-size:11px;display:inline-flex;overflow:hidden}.mh-tab-label{text-overflow:ellipsis;max-width:100%;overflow:hidden}.mh-tab-label:lang(en){font-size:11px}.mh-tab:hover{background:var(--mh-surface-2)}.mh-tab.is-on{background:var(--mh-surface-3);color:var(--mh-accent)}.mh-scroll{flex-direction:column;flex:1;gap:12px;min-height:0;padding:10px;display:flex;overflow:auto}.mh-section{border-block-end:1px solid var(--mh-border);gap:8px;padding-block-end:12px;display:grid}.mh-section:last-child{border-block-end:0}.mh-section>h3{color:var(--mh-text);align-items:center;gap:6px;margin:0;font-size:12px;font-weight:600;display:flex}.mh-section>h3 .mh-gap+*{font-weight:400}.mh-drop{border:1.5px dashed var(--mh-border-strong);border-radius:var(--mh-radius-lg);color:var(--mh-text-muted);text-align:center;cursor:pointer;place-items:center;gap:6px;padding:18px 10px;display:grid}.mh-drop:hover,.mh-drop.is-over{border-color:var(--mh-accent);color:var(--mh-text)}.mh-grid{grid-template-columns:repeat(auto-fill,minmax(78px,1fr));gap:6px;display:grid}.mh-tile{aspect-ratio:1;border:1px solid var(--mh-border);border-radius:var(--mh-radius);background:var(--mh-canvas) center / cover no-repeat;cursor:pointer;text-align:start;align-content:end;padding:0;display:grid;position:relative;overflow:hidden}.mh-tile:hover{border-color:var(--mh-accent)}.mh-tile img,.mh-tile video{object-fit:cover;pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.mh-tile-label{white-space:nowrap;text-overflow:ellipsis;background:linear-gradient(#0000,#000000bf);padding:3px 5px;font-size:10.5px;position:relative;overflow:hidden}.mh-tile-badge{font-variant-numeric:tabular-nums;background:#000000a6;border-radius:4px;padding:1px 5px;font-size:10px;position:absolute;inset-block-start:4px;inset-inline-end:4px}.mh-preset-list{gap:6px;display:grid}.mh-preset{border:1px solid var(--mh-border);border-radius:var(--mh-radius);background:var(--mh-canvas);cursor:pointer;place-items:center;min-height:54px;padding:8px;display:grid;overflow:hidden}.mh-preset:hover,.mh-preset.is-on{border-color:var(--mh-accent)}.mh-stage{background:var(--mh-canvas);flex-direction:column;min-width:0;min-height:0;display:flex}.mh-viewport{flex:1;place-items:center;min-height:0;padding:12px;display:grid;position:relative;overflow:hidden}.mh-frame{box-shadow:0 0 0 1px var(--mh-border), 0 12px 40px #00000080;background:#000;position:relative}.mh-frame canvas{width:100%;height:100%;display:block}.mh-safe{pointer-events:none;border:1px dashed #ffffff8c;position:absolute;box-shadow:0 0 0 9999px #0000002e}.mh-safe-label{color:#ffffffbf;font-size:10px;position:absolute;inset-block-start:-18px;inset-inline-start:0}.mh-handles{border:1.5px solid var(--mh-select);cursor:move;touch-action:none;position:absolute}.mh-handle{border:1.5px solid var(--mh-select);touch-action:none;background:#fff;border-radius:2px;width:11px;height:11px;margin:-6px;position:absolute}.mh-handle.is-rotate{cursor:grab;border-radius:50%}.mh-preview-message{text-align:center;color:var(--mh-text-muted);place-items:center;padding:24px;line-height:1.7;display:grid;position:absolute;inset:0}.mh-slot-hint{pointer-events:none;justify-items:center;gap:6px;display:grid;position:absolute;inset-block-end:16%;inset-inline:0}.mh-slot-hint span{background:#000000a6;border-radius:999px;padding:6px 12px;font-size:12px}.mh-transport{border-block-start:1px solid var(--mh-border);background:var(--mh-surface-1);justify-content:center;align-items:center;gap:4px;min-height:44px;padding:0 10px;display:flex}.mh-timecode{font-variant-numeric:tabular-nums;min-width:132px;color:var(--mh-text-muted);text-align:center;direction:ltr;font-size:12px}.mh-play{background:var(--mh-surface-3);border-radius:50%;width:38px;height:38px}.mh-timeline{border-block-start:1px solid var(--mh-border);background:var(--mh-surface-1);grid-template-rows:38px minmax(0,1fr);min-height:0;display:grid;position:relative}.mh-timeline-resize{cursor:ns-resize;z-index:5;height:8px;position:absolute;inset-block-start:-4px;inset-inline:0}.mh-timeline-tools{border-block-end:1px solid var(--mh-border);align-items:center;gap:2px;padding:0 8px;display:flex}.mh-zoom{width:120px;accent-color:var(--mh-accent)}.mh-tracks{overscroll-behavior:contain;direction:ltr;position:relative;overflow:auto}.mh-tracks-inner{min-height:100%;position:relative}.mh-ruler{z-index:4;height:24px;background:var(--mh-surface-1);border-block-end:1px solid var(--mh-border);cursor:text;margin-inline-start:var(--mh-head);position:sticky;inset-block-start:0}.mh-tick{background:var(--mh-border-strong);width:1px;position:absolute;inset-block-end:0}.mh-tick-label{color:var(--mh-text-dim);font-variant-numeric:tabular-nums;white-space:nowrap;margin-inline-start:4px;font-size:10px;position:absolute;inset-block-start:3px}.mh-track{border-block-end:1px solid var(--mh-border);display:flex;position:relative}.mh-track-head{z-index:3;width:var(--mh-head);background:var(--mh-surface-2);border-inline-end:1px solid var(--mh-border);flex:none;align-items:center;gap:2px;padding:0 6px;display:flex;position:sticky;inset-inline-start:0}.mh-track-head .mh-icon-button{width:24px;height:24px}.mh-track-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--mh-text-muted);unicode-bidi:plaintext;flex:1;font-size:11px;overflow:hidden}.mh-lane{flex:1;position:relative}.mh-track.is-main .mh-lane{background:#e9a93a0a}.mh-track.is-drop .mh-lane{background:#4c8dff1f}.mh-clip{background:var(--mh-video);cursor:grab;touch-action:none;border-radius:5px;position:absolute;inset-block:3px;overflow:hidden;box-shadow:inset 0 0 0 1px #ffffff14}.mh-clip.is-image{background:var(--mh-image)}.mh-clip.is-audio{background:var(--mh-audio)}.mh-clip.is-text{background:var(--mh-text-clip)}.mh-clip.is-caption{background:var(--mh-caption)}.mh-clip.is-design,.mh-clip.is-shape,.mh-clip.is-color{background:var(--mh-overlay)}.mh-clip.is-slot{background:repeating-linear-gradient(135deg, var(--mh-surface-3) 0 8px, var(--mh-surface-2) 8px 16px);box-shadow:inset 0 0 0 1px var(--mh-accent)}.mh-clip.is-selected{z-index:4;box-shadow:inset 0 0 0 2px #fff}.mh-clip.is-dragging{opacity:.85;cursor:grabbing;z-index:3}.mh-filmstrip{pointer-events:none;opacity:.9;display:flex;position:absolute;inset:0}.mh-filmstrip img{object-fit:cover;flex:none;height:100%}.mh-wave{pointer-events:none;width:100%;position:absolute;inset-block-end:0;inset-inline:0}.mh-clip-label{white-space:nowrap;text-overflow:ellipsis;text-shadow:0 1px 2px #000c;pointer-events:none;unicode-bidi:plaintext;align-items:center;gap:4px;max-width:100%;padding:2px 6px;font-size:11px;display:flex;position:relative;overflow:hidden}.mh-clip-label .mh-badge{background:#00000073;border-radius:3px;padding:0 4px;font-size:10px}.mh-trim{cursor:ew-resize;z-index:2;width:8px;position:absolute;inset-block:0}.mh-trim.is-start{left:0}.mh-trim.is-end{right:0}.mh-clip.is-selected .mh-trim{background:#ffffffd9}.mh-transition-mark{color:#fff;z-index:3;cursor:pointer;background:#000000a6;border:1px solid #ffffff4d;border-radius:4px;place-items:center;width:16px;margin-left:-8px;display:grid;position:absolute}.mh-playhead{z-index:6;pointer-events:none;width:0;position:absolute;inset-block:0}.mh-playhead:before{content:"";inset-block:0;background:var(--mh-accent);width:2px;position:absolute;left:-1px}.mh-playhead:after{content:"";border:6px solid #0000;border-top:8px solid var(--mh-accent);position:absolute;top:0;left:-6px}.mh-marker{cursor:pointer;width:10px;height:10px;margin-left:-5px;position:absolute;inset-block-start:0;transform:rotate(45deg)}.mh-snap-line{z-index:5;pointer-events:none;background:#fff;width:1px;position:absolute;inset-block:0}.mh-marquee{border:1px solid var(--mh-select);pointer-events:none;z-index:5;background:#4c8dff24;position:absolute}.mh-timeline-empty{color:var(--mh-text-dim);pointer-events:none;direction:initial;position:absolute;inset-block-start:40px;inset-inline-start:calc(var(--mh-head) + 16px)}.mh-backdrop{z-index:100;background:#0000008c;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.mh-dialog{border:1px solid var(--mh-border-strong);background:var(--mh-surface-1);width:min(560px,100%);max-height:min(86dvh,760px);box-shadow:var(--mh-shadow);color:var(--mh-text);font-family:var(--mh-font);border-radius:14px;gap:14px;padding:18px;font-size:13px;display:grid;overflow:auto}.mh-dialog h2{margin:0;font-size:17px}.mh-dialog footer{justify-content:flex-end;gap:8px;display:flex}.mh-progress{background:var(--mh-surface-3);border-radius:999px;height:8px;overflow:hidden}.mh-progress>span{background:var(--mh-accent);height:100%;transition:width .2s;display:block}.mh-toast{z-index:120;border:1px solid var(--mh-border-strong);border-radius:var(--mh-radius-lg);background:var(--mh-surface-2);max-width:min(640px,92vw);box-shadow:var(--mh-shadow);align-items:center;gap:10px;padding:10px 14px;line-height:1.6;display:flex;position:fixed;inset-block-end:18px;inset-inline-start:50%;translate:-50%}[dir=rtl] .mh-toast{translate:50%}.mh-toast.is-error{border-color:var(--mh-danger)}.mh-cut-list{gap:6px;max-height:40vh;display:grid;overflow:auto}.mh-cut{border:1px solid var(--mh-border);border-radius:var(--mh-radius);grid-template-columns:auto 1fr auto;align-items:center;gap:8px;padding:6px 8px;display:grid}.mh-cut q{quotes:"«" "»";unicode-bidi:plaintext}.mh-cue-list{align-content:start;gap:6px;display:grid}.mh-cue{grid-template-columns:52px 1fr;align-items:start;gap:6px;display:grid}.mh-cue button{color:var(--mh-text-dim);font-variant-numeric:tabular-nums;cursor:pointer;text-align:start;direction:ltr;background:0 0;border:0;padding:4px 0;font-size:11px}.mh-cue textarea{unicode-bidi:plaintext;min-height:34px}.mh-cue.is-now textarea{border-color:var(--mh-accent)}.mh-start{overscroll-behavior:contain;position:fixed;inset:0;overflow:hidden auto}.mh-start.is-dropping{outline:3px dashed var(--mh-accent);outline-offset:-10px}.mh-start-head{align-items:center;gap:8px;max-width:1180px;margin:0 auto;padding:14px 20px;display:flex}.mh-start-main{gap:34px;max-width:1180px;margin:0 auto;padding:10px 20px 60px;display:grid}.mh-hero{border:1px solid var(--mh-border);background:radial-gradient(120% 140% at 100% 0%, #e9a93a29, transparent 55%), var(--mh-surface-1);border-radius:18px;gap:14px;padding:28px;display:grid}.mh-hero h1{margin:0;font-size:clamp(24px,3.4vw,36px);line-height:1.3}.mh-hero p{color:var(--mh-text-muted);margin:0;font-size:15px;line-height:1.7}.mh-describe{gap:8px;display:flex}.mh-describe input{border:1px solid var(--mh-border-strong);border-radius:var(--mh-radius-lg);background:var(--mh-canvas);min-height:42px;color:var(--mh-text);flex:1;padding:0 14px;font-size:14px}.mh-describe .mh-button{min-height:42px}.mh-start h2{margin:0 0 12px;font-size:16px}.mh-sizes{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;display:grid}.mh-size{border:1px solid var(--mh-border);border-radius:var(--mh-radius-lg);background:var(--mh-surface-1);cursor:pointer;justify-items:center;gap:10px;padding:16px 10px;display:grid}.mh-size:hover{border-color:var(--mh-accent)}.mh-size-shape{border:2px solid var(--mh-text-muted);border-radius:6px}.mh-size small{color:var(--mh-text-dim);direction:ltr}.mh-templates{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px;display:grid}.mh-template{border:1px solid var(--mh-border);border-radius:var(--mh-radius-lg);background:var(--mh-surface-1);cursor:pointer;text-align:start;gap:6px;padding:0;display:grid;overflow:hidden}.mh-template:hover,.mh-template.is-suggested{border-color:var(--mh-accent)}.mh-template-art{aspect-ratio:16/10;text-shadow:0 2px 10px #0006;place-items:center;font-size:22px;font-weight:700;display:grid}.mh-template-name{padding:0 10px 10px;font-weight:600}.mh-template-name small{color:var(--mh-text-dim);font-weight:400;display:block}.mh-recent{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;margin:0;padding:0;list-style:none;display:grid}.mh-recent li{position:relative}.mh-recent-card{border:1px solid var(--mh-border);border-radius:var(--mh-radius-lg);background:var(--mh-surface-1);cursor:pointer;text-align:start;gap:6px;width:100%;padding:0 0 10px;display:grid;overflow:hidden}.mh-recent-card:hover{border-color:var(--mh-accent)}.mh-recent-thumb{aspect-ratio:16/10;background:var(--mh-canvas);display:block}.mh-recent-thumb img{object-fit:contain;width:100%;height:100%}.mh-recent-card strong,.mh-recent-card small{padding:0 10px}.mh-recent-card small{color:var(--mh-text-dim)}.mh-recent-delete{border-radius:var(--mh-radius);color:#fff;cursor:pointer;opacity:0;background:#0009;border:0;place-items:center;width:28px;height:28px;display:grid;position:absolute;inset-block-start:6px;inset-inline-end:6px}.mh-recent li:hover .mh-recent-delete,.mh-recent-delete:focus-visible{opacity:1}.mh-links{flex-wrap:wrap;gap:10px;display:flex}.mh-narrow{display:none}.mh-spin{animation:.9s linear infinite mh-spin}@keyframes mh-spin{to{rotate:360deg}}@media (width<=900px){.mh-narrow{display:inline-grid}.mh-wide,.mh-save-state,.mh-title-input{display:none}.mh-main{grid-template-rows:minmax(220px,1fr) auto;grid-template-columns:minmax(0,1fr)}.mh-panel,.mh-inspector{display:none}.mh-main.show-panel .mh-panel,.mh-main.show-inspector .mh-inspector{border:0;border-block-start:1px solid var(--mh-border);max-height:42dvh;display:flex}}