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:root{color-scheme:light;--ink:#142d3e;--muted:#596b79;--green:#007861;--mint:#56dfc2;--line:#d9e2e8;--paper:#f3f6f8;--white:#fff;font-family:system-ui,-apple-system,"Segoe UI","Noto Sans JP",sans-serif;color:var(--ink);background:var(--paper);font-size:16px}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:.25em}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid 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@media(max-width:850px){.header{padding:0 24px;height:80px}.header nav{gap:1rem}.workspace{grid-template-columns:minmax(0,1fr) 300px}.files-panel,.settings-panel{padding:22px}.dropzone{min-height:285px}.guide-grid{gap:12px}.guide-card{padding:20px}.guide-card h3{font-size:1.05rem}.how{gap:25px}.brand{font-size:1rem}}
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