:root{color-scheme:light dark;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--accent:#6750a4;--accent-text:#fff;--surface:#fff;--surface-2:#f5f2fa;--text:#1d1b20;--muted:#625b71;--border:#cac4d0;--danger:#b3261e;--warning:#8a5200}*{box-sizing:border-box}body{margin:0;background:var(--surface-2);color:var(--text)}button,input,select,textarea,summary{font:inherit}button,summary,input,select{min-height:44px}.app-shell{min-height:100dvh}.sidebar{display:none}.main{max-width:900px;margin:auto;padding:16px 16px 104px}.page-header{display:flex;align-items:center;justify-content:space-between;gap:16px}.page-header h1{font-size:clamp(1.55rem,5vw,2.2rem)}.editor-card,.panel,.result-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:16px;margin-block:14px}.editor-label,.group-heading{display:block;font-weight:700;margin:0 0 10px}.editor{display:block;width:100%;min-height:180px;resize:vertical;padding:12px;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--text);font:1rem/1.5 ui-monospace,SFMono-Regular,Menlo,monospace}.utility-actions,.result-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}.settings{position:relative}.settings summary{display:flex;align-items:center;padding:0 14px;border:1px solid var(--border);border-radius:999px;cursor:pointer}.settings-content{position:absolute;z-index:3;right:0;top:50px;width:min(320px,80vw);padding:14px;border:1px solid var(--border);border-radius:12px;background:var(--surface);box-shadow:0 8px 24px #0003}.field{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;padding-block:4px}.field-label{font-weight:600}select,input[type=number],input:not([type]){max-width:100%;padding:8px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text)}button{border:0;border-radius:999px;padding:10px 16px;cursor:pointer}.primary,.nav-button.selected,.tab-button.selected{background:var(--accent);color:var(--accent-text)}.secondary{background:transparent;border:1px solid var(--border);color:var(--text)}.danger{background:color-mix(in srgb,var(--danger) 14%,transparent);color:var(--danger)}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,pre:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 65%,white);outline-offset:3px}.panel{padding:8px 16px}.group-heading{font-size:1rem;color:var(--muted);margin-top:18px}.choice-list{list-style:none;margin:0;padding:0}.choice-list>li{margin:0;padding:0}.choice-row{display:flex;align-items:stretch;border-bottom:1px solid var(--border)}.choice-main{display:flex;flex:1;min-width:0;flex-direction:column;align-items:flex-start;text-align:left;border-radius:8px;background:transparent;color:var(--text);padding:12px 8px}.choice-main.full{width:100%;border-bottom:1px solid var(--border)}.choice-title{font-weight:700}.choice-detail{max-width:100%;margin-top:3px;color:var(--muted);font:clamp(.82rem,2.5vw,.95rem)/1.35 ui-monospace,SFMono-Regular,Menlo,monospace;overflow:hidden;text-overflow:ellipsis}.favorite{width:48px;padding:0;background:transparent;color:#8a6700;font-size:1.35rem}.controls{border:0;border-left:3px solid var(--accent);margin:0 0 12px;padding:8px 12px 12px}.controls legend{font-weight:700;color:var(--muted)}.segmented{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;border-radius:12px;background:var(--surface-2)}.segmented button[aria-pressed=true]{background:var(--accent);color:var(--accent-text)}.result-output{min-height:64px;max-height:45vh;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;padding:12px;border-radius:10px;background:var(--surface-2);font:1rem/1.5 ui-monospace,SFMono-Regular,Menlo,monospace}.help{color:var(--muted)}.error{color:var(--danger)}.warning{color:var(--warning)}.tab-bar{position:fixed;z-index:4;bottom:0;left:0;right:0;display:grid;grid-template-columns:repeat(3,1fr);padding:max(6px,env(safe-area-inset-bottom)) 6px;background:color-mix(in srgb,var(--surface) 94%,transparent);border-top:1px solid var(--border);backdrop-filter:blur(14px)}.tab-button{border-radius:10px;padding:8px 4px;background:transparent;color:var(--text);font-size:.8rem}.history-controls{position:fixed;z-index:5;right:14px;bottom:74px;display:flex;gap:6px;padding:5px;border:1px solid var(--border);border-radius:999px;background:var(--surface);box-shadow:0 5px 18px #0003}.history-button{width:48px;padding:0;background:transparent;color:var(--text)}.status{position:fixed;z-index:8;left:50%;bottom:82px;translate:-50%;max-width:90vw;padding:8px 14px;border-radius:999px;background:var(--text);color:var(--surface);opacity:0;pointer-events:none}.status.visible{animation:status 4s}.result-dialog{width:min(680px,calc(100vw - 32px));max-height:85dvh;padding:20px;border:1px solid var(--border);border-radius:18px;background:var(--surface);color:var(--text)}.result-dialog::backdrop{background:#0008}.unsupported{max-width:620px;margin:15vh auto;padding:24px}.full{width:100%}@keyframes status{0%,80%{opacity:1}100%{opacity:0}}@media(min-width:760px){.app-shell{display:grid;grid-template-columns:240px minmax(0,1fr)}.sidebar{display:block;position:sticky;top:0;height:100dvh;padding:24px 14px;background:var(--surface);border-right:1px solid var(--border)}.brand{font-size:1.35rem;font-weight:800;padding:10px}.section-nav{display:grid;gap:6px;margin-top:24px}.nav-button{text-align:left;background:transparent;color:var(--text)}.main{width:100%;padding:28px 32px 80px}.tab-bar{display:none}.history-controls{bottom:20px}}@media(prefers-color-scheme:dark){:root{--surface:#1d1b20;--surface-2:#141218;--text:#e6e1e5;--muted:#cac4d0;--border:#49454f;--warning:#ffb95c}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important}}@media(forced-colors:active){button,.editor-card,.panel,.result-card,.result-output{border:1px solid CanvasText}.selected{outline:2px solid Highlight}}