@font-face{font-family:SF Pro Display;src:url('assets/SFProDisplay-Regular.woff2') format('woff2');font-style:normal;font-weight:400;font-display:swap}
@font-face{font-family:SF Pro Display;src:url('assets/SFProDisplay-Medium.woff2') format('woff2');font-style:normal;font-weight:500 700;font-display:swap}
:root{color-scheme:dark;--bg:#161516;--surface:#201f21;--canvas:#19181a;--raised:#2b2a2e;--line:#3b393e;--text:#eeedfb;--muted:#b6b4bf;--accent:#5a3bb9;--focus:#c1adff;--error:#ffb4ab}
*{box-sizing:border-box}
html{min-width:0}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.5 'SF Pro Display',system-ui,sans-serif}
button,input,select{font:inherit}
button{cursor:pointer}
button:disabled,input:disabled{cursor:not-allowed}
[hidden]{display:none!important}
::selection{background:var(--accent);color:var(--text)}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px}
.skip-link{position:absolute;z-index:10;top:8px;left:16px;padding:8px 12px;background:var(--text);color:var(--bg);transform:translateY(-160%)}
.skip-link:focus{transform:translateY(0)}
.topbar{min-height:72px;padding:0 40px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:500}
.brand-mark{display:block;width:40px;height:19px}
.muted{color:var(--muted);font-size:14px}
.workspace{max-width:1520px;margin:auto;padding:16px 40px 64px}
h1,h2,h3,p{margin:0}
h1{font-size:30px;line-height:36px;font-weight:500}
.editor-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;align-items:start}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;min-width:0}
.preview-card{min-height:680px;padding:24px;display:flex;flex-direction:column}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}
.panel-head h2{font-size:18px;line-height:28px;font-weight:500}
#image-meta{overflow-wrap:anywhere;text-align:right}
.dropzone{position:relative;flex:1;min-height:480px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--canvas);border:1px dashed #55515b;border-radius:8px}
.dropzone.dragging{border-color:var(--focus);background:#24202d}
.empty-state{text-align:center;max-width:320px;padding:24px}
.upload-icon{width:24px;height:24px;margin:0 auto 20px;color:var(--muted)}
.empty-state h3{font-size:18px;font-weight:500;line-height:28px}
.empty-state p{color:var(--muted);font-size:14px;line-height:20px;margin:8px 0 20px}
.button{min-height:44px;padding:8px 16px;border:1px solid transparent;border-radius:8px;font-weight:500;color:var(--text);transition:background-color .2s,border-color .2s}
.button.primary{background:var(--accent)}
.button.primary:hover{background:#6c4bce}
.button.secondary{background:var(--raised);border-color:#514e56}
.button.secondary:hover:not(:disabled){background:#39363f}
.button:disabled{color:#aaa7b1;background:#302e33;border-color:#403d44;opacity:.65}
.preview-toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:-8px 0 16px}
.tool-button{min-height:36px;padding:4px 10px;background:var(--raised);border:1px solid #514e56;border-radius:8px;color:var(--text);display:inline-flex;align-items:center;justify-content:center;gap:8px}
.tool-button:hover:not(:disabled),.tool-button[aria-pressed=true]{background:#39363f;border-color:#716b79}
.zoom-value{min-width:52px;text-align:center;color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}
.image-viewport{position:absolute;inset:0;overflow:hidden;background:var(--canvas);touch-action:none;cursor:default;outline:none}
.image-viewport.is-hand{cursor:grab}.image-viewport.is-dragging{cursor:grabbing}
#preview-image,#preview-canvas{position:absolute;left:0;top:0;display:block;max-width:none;max-height:none;object-fit:initial;transform-origin:0 0;user-select:none;-webkit-user-drag:none;pointer-events:none;background-color:transparent}
.image-viewport:has(#preview-image:not([hidden])) #preview-image,.image-viewport:has(#preview-canvas:not([hidden])) #preview-canvas{background-image:linear-gradient(45deg,#29272b 25%,transparent 25%),linear-gradient(-45deg,#29272b 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#29272b 75%),linear-gradient(-45deg,transparent 75%,#29272b 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0}
.loading-state{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:var(--canvas);color:var(--muted);font-size:14px}
.skeleton{width:min(45%,240px);height:8px;border-radius:4px;background:#45414a}
.preview-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:20px;color:var(--muted);font-size:14px}
.export-controls{display:flex;align-items:center;gap:8px;flex:0 0 auto}.export-controls select{width:auto;min-height:44px}
.preview-foot .error{color:var(--error)}
.controls{padding:24px}
.text-button{border:0;background:transparent;padding:4px;color:#cbbdff;font-size:14px}
.text-button:hover{color:var(--text)}
fieldset{border:0;border-top:1px solid var(--line);margin:0;padding:20px 0 24px;min-width:0}
fieldset:last-child{padding-bottom:4px}
legend{padding:0 12px 0 0;color:var(--text);font-size:14px;font-weight:500}
fieldset label,#parameter-fields label{display:block;font-size:14px;color:var(--text);margin-bottom:16px}
fieldset label:last-child{margin-bottom:0}
output{float:right;color:var(--muted);font-variant-numeric:tabular-nums}
input[type=range]{display:block;width:100%;height:20px;margin:8px 0 0;accent-color:#967ced;cursor:pointer}
select{display:block;width:100%;min-height:44px;padding:8px 12px;background:var(--raised);border:1px solid #514e56;border-radius:8px;color:var(--text)}
.color-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.color-row input{display:block;width:100%;height:36px;margin-top:8px;padding:2px;background:var(--raised);border:1px solid var(--line);border-radius:6px}
.check-row{display:flex;align-items:center;gap:8px}
input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent)}
.helper{margin:0 0 16px;color:var(--muted);font-size:14px;line-height:20px}
.api-note{border-top:1px solid var(--line);padding-top:20px;color:var(--muted);font-size:14px;line-height:20px}
.api-note strong{display:inline-block;margin-bottom:8px;color:var(--text);font-weight:500}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:850px){.topbar{padding:0 24px}.workspace{padding:16px 24px 48px}.editor-grid{grid-template-columns:minmax(0,1fr)}.preview-card{min-height:520px}.dropzone{min-height:360px}}
@media(max-width:480px){.topbar{min-height:64px;padding:0 16px}.workspace{padding:12px 16px 40px}.preview-card,.controls{padding:16px}.preview-card{min-height:440px}.dropzone{min-height:300px}.panel-head{align-items:start}.preview-toolbar{gap:6px}.preview-toolbar .button{padding-inline:8px}.preview-foot{align-items:stretch;flex-direction:column}.export-controls{width:100%}.export-controls select{flex:0 0 92px}.export-controls .button{flex:1}.preview-foot .button{width:100%}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}