[hidden]{display:none!important}
:root{font-family:system-ui,-apple-system,"Hiragino Kaku Gothic ProN",Meiryo,sans-serif;color-scheme:dark;--bg:#10121b;--panel:#1d2030;--panel2:#252839;--line:#383d51;--text:#f6f3ff;--sub:#b2b5c7;--accent:#a28afa;--bottom:0px}*{box-sizing:border-box}html,body{margin:0;min-width:300px;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}button,select,input:not([type="range"]):not([type="file"]),textarea{border:1px solid var(--line);border-radius:10px;background:var(--panel2);color:var(--text);padding:10px 12px}button{cursor:pointer}button.primary,.upload-large{border-color:transparent;background:var(--accent);color:#101019;font-weight:750}button:disabled{opacity:.42;cursor:not-allowed}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}h1,h2,p{margin-top:0}.fine,small,.muted{font-size:12px;color:var(--sub)}.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px;border-bottom:1px solid var(--line);min-height:67px}.top strong{font-size:18px;display:block}.top small{font-size:10px;letter-spacing:.12em}.head-actions{display:flex;gap:8px}.head-actions button{font-size:13px}.welcome{min-height:calc(100dvh - 68px);display:grid;place-items:center;padding:24px}.welcome-inner{text-align:center;max-width:550px;width:100%;padding:42px 18px;border:1px solid var(--line);border-radius:22px;background:radial-gradient(circle at 50% 0%,#3d2e6555,transparent 70%),var(--panel)}.eyebrow{font-size:11px;letter-spacing:.1em;color:#c5b6ff}.welcome h1{margin:18px 0;font-size:clamp(24px,5vw,38px)}.welcome p{color:var(--sub)}.upload-large{display:inline-block;margin:20px auto 8px;padding:16px 25px;border-radius:12px;cursor:pointer}.upload-large input{display:none}.steps{display:flex;gap:5px;overflow-x:auto;padding:10px 15px;border-bottom:1px solid var(--line);scrollbar-width:thin}.steps button{flex:1;min-width:max-content;background:transparent;border:0;padding:9px 12px;font-size:12px;color:var(--sub)}.steps button.active{background:var(--accent);border-radius:9px;color:#111;font-weight:750}.work{display:grid;grid-template-columns:minmax(0,1fr) minmax(310px,380px);height:calc(100dvh - 118px);min-height:350px}.preview-area{min-width:0;min-height:0;display:flex;flex-direction:column;background:#0b0d15}.preview-top{padding:8px 12px;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--sub)}.preview-top button{font-size:12px;padding:5px 10px}.stage{position:relative;flex:1;min-height:0;overflow:hidden;touch-action:none;display:grid;place-items:center;background:conic-gradient(#222331 25%,#171824 0 50%,#222331 0 75%,#171824 0) 0 0/32px 32px}.stage canvas{display:block;max-width:none;max-height:none;box-shadow:0 4px 20px #000a;transform-origin:0 0;touch-action:none}.options{min-width:0;min-height:0;display:flex;flex-direction:column;background:var(--panel);border-left:1px solid var(--line)}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px;border-bottom:1px solid var(--line)}.panel-head h2{font-size:18px;margin:2px 0 0}.panel-head button{font-size:11px;padding:8px}.panel-content{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:14px 14px 28px}.panel-foot{display:flex;gap:8px;border-top:1px solid var(--line);padding:10px 12px}.panel-foot button{flex:1;min-width:0;font-size:12px;padding:10px 4px}.form-row{margin-bottom:16px}.form-row label,.form-row .row-label{font-size:13px;display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:7px}.form-row select,.form-row input:not([type=range]),.form-row textarea{width:100%}.form-row input[type=range]{width:100%;accent-color:var(--accent);height:30px}.form-row input[type=color]{height:42px;padding:3px}.help{font-size:12px;line-height:1.7;color:var(--sub);margin:6px 0 16px}.grid-two{display:grid;grid-template-columns:1fr 1fr;gap:8px}.grid-two button{min-height:43px}.choice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.choice-grid button{min-height:56px}.choice-grid button.selected{border-color:var(--accent);background:#382e59}.preview-note{font-size:12px;padding:9px 11px;background:#292c3e;border:1px solid var(--line);border-radius:9px;margin:9px 0}.warning{color:#f9c886}.font-list{display:grid;grid-template-columns:1fr 1fr;gap:7px;max-height:185px;overflow-y:auto}.font-list button{padding:9px 6px;min-height:48px}.font-list button.selected{border-color:var(--accent);background:#39315a}.layer-list{display:flex;flex-direction:column;gap:7px}.layer-list button{text-align:left}.layer-list button.selected{border-color:var(--accent)}.mobile-steps{display:none}#toast{position:fixed;z-index:300;left:50%;bottom:18px;transform:translateX(-50%);background:#34384a;border:1px solid var(--line);border-radius:10px;padding:10px 14px;max-width:90vw;display:none;font-size:13px;text-align:center}#toast.show{display:block}.split-preview{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin:10px 0}.split-preview span{height:34px;display:grid;place-items:center;background:#44376b;border:1px solid var(--accent);border-radius:5px;font-size:12px}@media(max-width:720px){.top{min-height:58px;padding:9px 11px}.top strong{font-size:16px}.top small{display:none}.head-actions button{padding:8px;font-size:12px}.steps{display:none}.work{display:flex;flex-direction:column;height:calc(100dvh - 58px - 62px - env(safe-area-inset-bottom));min-height:0}.preview-area{height:55%;flex:1;min-height:150px}.preview-top{padding:5px 11px;min-height:30px}.options{height:27%;flex:0 0 27%;border-left:0;border-top:1px solid var(--line);border-radius:13px 13px 0 0}.panel-head{padding:8px 12px;min-height:45px}.panel-head h2{font-size:14px}.panel-content{padding:10px 12px 16px}.panel-foot{padding:7px 9px}.panel-foot button{padding:8px 3px}.mobile-steps{display:flex;align-items:stretch;gap:3px;overflow-x:auto;position:fixed;bottom:0;left:0;right:0;height:calc(62px + env(safe-area-inset-bottom));padding:4px 5px calc(5px + env(safe-area-inset-bottom));background:var(--bg);border-top:1px solid var(--line);scrollbar-width:none;z-index:100}.mobile-steps button{min-width:64px;flex:1;padding:5px 6px;font-size:11px;border:1px solid transparent;background:transparent;color:var(--sub);border-radius:9px}.mobile-steps button.active{color:#100f18;background:var(--accent);font-weight:bold}.mobile-steps button span{display:block;font-size:20px;padding-bottom:2px}.welcome{min-height:calc(100dvh - 58px)}.panel-head button{font-size:11px}.font-list{max-height:135px}}