:root{color:#364153;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--color-text:#364153;--color-title:#16222d;--color-muted:#6b7280;--color-accent:#c26a2c;--font-sans:"Avenir Next", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-display:"Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;--font-mono:"IBM Plex Mono", "SFMono-Regular", Consolas, monospace;background:radial-gradient(circle at 0 0,#ffd48f47,#0000 26%),radial-gradient(circle at 100% 100%,#7cc1b542,#0000 24%),linear-gradient(#fffaf3 0%,#f8f1e6 100%)}*{box-sizing:border-box}html{min-height:100%}body{min-height:100vh;color:var(--color-text);font:16px/1.6 var(--font-sans);margin:0}body,input,textarea,button{font-family:var(--font-sans)}button,input,textarea{border:none}button,input[type=number],input[type=range]{appearance:none}button{cursor:pointer;color:#fffaf4;background:linear-gradient(135deg,#d97d54,#c76c2a);border-radius:16px;padding:12px 16px;font-weight:600;transition:transform .12s,box-shadow .12s;box-shadow:0 12px 24px #c76c2a33}button:hover{transform:translateY(-1px);box-shadow:0 16px 28px #c76c2a3d}button:focus-visible,input:focus-visible,textarea:focus-visible{outline-offset:2px;outline:2px solid #c76c2a59}input[type=number]{color:var(--color-text);background:#ffffffdb;border:1px solid #4b3d2824;border-radius:14px;padding:10px 12px}input[type=range]{background:linear-gradient(90deg,#d97d5499,#54a49594);border-radius:999px;height:10px}input[type=range]::-webkit-slider-thumb{appearance:none;background:#1f6f68;border:3px solid #fffaf3;border-radius:50%;width:20px;height:20px;box-shadow:0 6px 12px #1f6f6833}input[type=range]::-moz-range-thumb{background:#1f6f68;border:3px solid #fffaf3;border-radius:50%;width:20px;height:20px;box-shadow:0 6px 12px #1f6f6833}h1,h2{color:var(--color-title);letter-spacing:-.03em}h1{font-family:var(--font-display);font-size:clamp(2.5rem,5vw,4.6rem);line-height:.95}h2{font-size:1.2rem;line-height:1.2}p,h1,h2{margin:0}code{color:#11424b;font:13px/1.6 var(--font-mono);background:#ffffffb8;border-radius:10px;padding:4px 8px;display:inline-block}#root{width:min(1380px,100%);margin:0 auto;padding:28px}@media (width<=720px){#root{padding:16px}}.app-shell{gap:24px;display:grid}.hero-panel{background:radial-gradient(circle at 100% 0,#eca14d42,#0000 30%),linear-gradient(135deg,#fffaf1f5,#f5ecdbeb);border:1px solid #493a2724;border-radius:28px;padding:32px;position:relative;overflow:hidden;box-shadow:0 24px 80px #5c462614}.eyebrow{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--color-accent);margin:0 0 10px;font-size:13px}.hero-panel h1{margin:0 0 12px}.hero-copy{max-width:780px;font-size:18px;line-height:1.7}.workspace{grid-template-columns:minmax(320px,440px) minmax(0,1fr);align-items:start;gap:24px;display:grid}.control-column,.preview-column{gap:20px;display:grid}.card{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#fffcf7e0;border:1px solid #493a271f;border-radius:24px;padding:24px;box-shadow:0 12px 40px #533f2114}.section-heading{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px;display:flex}.section-heading h2{margin:0}.badge,.canvas-size{font-family:var(--font-mono);color:#694f22;white-space:nowrap;background:#e6c37a42;border-radius:999px;justify-content:center;align-items:center;padding:7px 12px;font-size:12px;display:inline-flex}.badge.cool{color:#0f5750;background:#7ecfc13d}.badge.warm{color:#8a3b18;background:#f09d683d}.text-editor{box-sizing:border-box;resize:vertical;width:100%;min-height:220px;color:var(--color-text);font:500 17px/1.7 var(--font-sans);background:#ffffffe6;border:1px solid #4b3d2824;border-radius:20px;padding:18px 20px}.text-editor:focus{border-color:#d97d5473;outline:2px solid #d97d5459}.button-row{gap:10px;margin-top:16px;display:flex}.button-row button{flex:1}.rule-list{background:#faf4e9eb;border:1px solid #493a2714;border-radius:18px;gap:10px;margin-bottom:18px;padding:16px 18px;display:grid}.rule-list p{color:var(--color-muted);font-size:14px}.mode-toggle{background:#f4ecdeeb;border:1px solid #493a2714;border-radius:18px;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:12px;padding:8px;display:grid}.mode-button{color:var(--color-muted);font:600 14px/1.3 var(--font-sans);background:0 0;border:0;border-radius:14px;padding:12px 14px;transition:background-color .16s,color .16s,box-shadow .16s,transform .16s}.mode-button:hover{color:var(--color-title);background:#ffffffad}.mode-button:focus-visible{outline-offset:2px;outline:2px solid #d97d5461}.mode-button--active{color:#7d3215;background:linear-gradient(135deg,#fffcf5fa,#fff3e2f2);box-shadow:0 8px 20px #784f1a1f}.mode-hint{color:var(--color-muted);margin:0 0 18px;font-size:14px;line-height:1.7}.control-grid{gap:16px;display:grid}.control{grid-template-columns:112px minmax(0,1fr) 92px;align-items:center;gap:12px;font-size:14px;display:grid}.control span{color:var(--color-muted)}.control input[type=range],.control input[type=number]{width:100%}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.metric{background:#faf4e9eb;border:1px solid #493a2714;border-radius:18px;padding:14px 16px}.metric span{color:var(--color-muted);margin-bottom:6px;font-size:13px;display:block}.metric strong{color:var(--color-title);font-size:24px;line-height:1.15}.hint{color:var(--color-muted);margin:16px 0 0;font-size:14px;line-height:1.7}.preview-card{overflow:hidden}.canvas-subtitle{color:var(--color-muted);margin:6px 0 0;font-size:14px}.preview-frame{background:linear-gradient(135deg,#faf3e4e6,#eaf4f0f0);border-radius:28px;padding:20px}.preview-scroller{overflow:auto}.preview-surface{--preview-surface-pad-block:26px;--preview-surface-pad-inline:28px;min-height:260px;padding:var(--preview-surface-pad-block) var(--preview-surface-pad-inline);box-sizing:content-box;background:linear-gradient(#fffffff7,#fff9f0f2);border-radius:22px;position:relative;box-shadow:inset 0 0 0 1px #493a2714,0 16px 40px #533f2114}.preview-surface:after{content:"";inset:var(--preview-surface-pad-block) var(--preview-surface-pad-inline);pointer-events:none;z-index:1;border:1px solid #7d321533;border-radius:12px;position:absolute}.preview-line{align-items:baseline;display:flex}.empty-state{color:var(--color-muted)}.frag{white-space:pre;color:#1d2b36;display:inline-block}.frag--body{font-weight:500}.frag--quote{color:#7d3215}.frag--note{color:#245056}.line-list{gap:10px;max-height:420px;display:grid;overflow:auto}.line-row{background:#f8f3eae6;border:1px solid #493a2714;border-radius:16px;grid-template-columns:52px 92px minmax(0,1fr);align-items:start;gap:12px;padding:12px 14px;display:grid}.line-row--rich{align-items:baseline}.line-index,.line-width{font-family:var(--font-mono);color:var(--color-muted);font-size:13px}.line-width--overflow{color:#bf2f2f;font-weight:700}.line-fragments{overflow-wrap:anywhere}@media (width<=1080px){.workspace{grid-template-columns:1fr}}@media (width<=720px){.hero-panel,.card{border-radius:22px;padding:20px}.control,.metric-grid{grid-template-columns:1fr}.button-row,.section-heading{flex-direction:column}.preview-frame,.preview-surface{padding:16px}.preview-surface{--preview-surface-pad-block:16px;--preview-surface-pad-inline:16px}}