:root{--bg:#fafafa;--ink:#111;--sub:#666;--line:#e9e9e9;--blue:#4a90e2;--blue-dim:#b9d6f6;--card:#fff;--card-shadow:#1111110a;--input-border:#dedede;--input-focus-border:#b9d6f6;--input-focus-shadow:#1111110f;--form-footer-border:#eee;--btn-bg:#2563eb;--btn-text:#fff}[data-theme=dark]{--bg:#0d0d14;--ink:#efefef;--sub:#8888a8;--line:#252535;--blue:#6ba7f5;--blue-dim:#2d4a7a;--card:#17172a;--card-shadow:#00000059;--input-border:#2e2e4a;--input-focus-border:#3a5a96;--input-focus-shadow:#6ba7f514;--form-footer-border:#252535;--btn-bg:#3b82f6;--btn-text:#fff}*{box-sizing:border-box}[hidden]{display:none!important}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:Inter,Noto Sans JP,sans-serif;transition:background .25s,color .25s}button,textarea{font:inherit}button{cursor:pointer}.shell{width:min(760px,100% - 40px);margin:0 auto;padding:28px 0 80px}.site-header{justify-content:space-between;align-items:center;gap:12px;display:flex}.brand{color:var(--ink);letter-spacing:-.06em;flex-shrink:0;align-items:center;gap:10px;font-size:20px;font-weight:700;text-decoration:none;display:flex}.brand span span{color:var(--blue)}.brand-icon{object-fit:contain;border-radius:6px;width:28px;height:28px}.header-right{align-items:center;gap:14px;display:flex}.privacy-note{color:var(--sub);align-items:center;gap:7px;margin:0;font-size:12px;display:flex}.privacy-dot{background:#72a8e8;border-radius:50%;flex-shrink:0;width:7px;height:7px}.theme-toggle{border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:99px;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;font-size:16px;line-height:1;transition:border-color .2s,background .25s,transform .15s;display:flex}.theme-toggle:hover{border-color:var(--blue);transform:scale(1.08)}.theme-toggle:active{transform:scale(.95)}.theme-toggle .icon-sun{display:inline}.theme-toggle .icon-moon,[data-theme=dark] .theme-toggle .icon-sun{display:none}[data-theme=dark] .theme-toggle .icon-moon{display:inline}.intro{padding:96px 0 32px}.eyebrow,.section-label{color:var(--blue);letter-spacing:.1em;margin:0;font-size:11px;font-weight:700}h1{letter-spacing:-.06em;margin:13px 0 16px;font-size:clamp(30px,6vw,46px);line-height:1.23}.lede{color:var(--sub);margin:0 0 32px;font-size:15px;line-height:1.8}.thought-form{border:1px solid var(--input-border);background:var(--card);border-radius:10px;transition:border-color .2s,box-shadow .2s;overflow:hidden}.thought-form:focus-within{border-color:var(--input-focus-border);box-shadow:0 8px 22px var(--input-focus-shadow)}textarea{resize:vertical;width:100%;min-height:150px;color:var(--ink);background:0 0;border:0;outline:0;padding:20px;font-size:15px;line-height:1.75;display:block}textarea::placeholder{color:#aaa}.form-footer{border-top:1px solid var(--form-footer-border);justify-content:space-between;align-items:center;min-height:68px;padding:10px 12px 10px 20px;display:flex}.form-footer span{color:#999;font-size:12px}.primary-button{background:var(--btn-bg);color:var(--btn-text);letter-spacing:.03em;text-shadow:0 1px 2px #0006;min-height:48px;box-shadow:0 4px 14px color-mix(in srgb, var(--btn-bg) 40%, transparent);border:0;border-radius:8px;align-items:center;gap:12px;padding:0 22px;font-size:15px;font-weight:700;transition:background .2s,transform .15s,box-shadow .2s,filter .2s;display:flex}.primary-button:hover{filter:brightness(1.12);box-shadow:0 6px 20px color-mix(in srgb, var(--btn-bg) 55%, transparent)}.primary-button:active{transform:translateY(1px)}.primary-button:disabled{cursor:wait;opacity:.5;box-shadow:none}.examples{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.examples button{border:1px solid var(--line);color:var(--sub);background:0 0;border-radius:99px;min-height:36px;padding:8px 14px;font-size:12px;transition:border-color .2s,color .2s}.examples button:hover{color:var(--blue);border-color:var(--blue-dim)}.model-notice{background:color-mix(in srgb, var(--blue) 8%, var(--card));border:1px solid color-mix(in srgb, var(--blue) 25%, transparent);border-radius:10px;align-items:flex-start;gap:14px;margin-top:24px;padding:16px 18px;display:flex}.model-notice-icon{flex-shrink:0;margin-top:1px;font-size:20px;line-height:1}.model-notice-body{flex:1;min-width:0}.model-notice-title{color:var(--blue);letter-spacing:.01em;margin:0 0 8px;font-size:13px;font-weight:700}.model-notice-list{flex-direction:column;gap:5px;margin:0;padding-left:18px;display:flex}.model-notice-list li{color:var(--sub);font-size:12px;line-height:1.65}.model-notice-list strong{color:var(--ink)}.loading-substatus{color:var(--sub);max-width:360px;margin:4px 0 0;font-size:12px;line-height:1.6}.loading-view{text-align:center;min-height:510px;color:var(--sub);place-content:center;font-size:14px;display:grid}.loading-mark{justify-content:center;align-items:center;gap:5px;height:27px;display:flex}.loading-mark i{background:var(--blue);border-radius:50%;width:7px;height:7px;animation:.8s infinite alternate rise;display:block}.loading-mark i:nth-child(2){animation-delay:.15s}.loading-mark i:nth-child(3){animation-delay:.3s}@keyframes rise{to{opacity:.35;transform:translateY(-8px)}}.loading-model-info{color:#d97706;max-width:340px;margin:8px 0 0;font-size:12px;line-height:1.6}.streaming-preview{width:100%;max-width:480px;color:var(--ink);white-space:pre-wrap;word-break:break-all;text-align:left;margin-top:20px;font-size:14px;line-height:1.85}.result-view{padding-top:72px}.result-heading,.section-heading{justify-content:space-between;align-items:flex-end;display:flex}.result-heading h2{letter-spacing:-.06em;margin-bottom:0;font-size:clamp(24px,5vw,34px)}.result-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.action-button{border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:8px;align-items:center;gap:6px;min-height:40px;padding:8px 14px;font-size:13px;font-weight:500;transition:border-color .2s,background .2s,color .2s;display:flex}.action-button:hover{border-color:var(--blue);color:var(--blue)}.action-button:active{transform:scale(.98)}.action-icon{font-size:14px}.text-button{color:var(--sub);background:0 0;border:0;min-height:44px;padding:9px 0;font-size:13px}.text-button:hover{color:var(--blue)}@media print{body{color:#111!important;background:#fff!important}.site-header,.intro,.loading-view,.result-actions,.adsense-slot,.site-footer,.text-button{display:none!important}.shell{width:100%!important;padding:0!important}.result-view{padding-top:0!important}.task-card,.diagram-scroll,.next-action-card{box-shadow:none!important;background:#fff!important;border-color:#ddd!important}}.adsense-slot{text-align:center;min-height:90px;margin-top:48px;overflow:hidden}.summary-section,.tasks-section,.diagram-section{padding-top:48px}.summary-text{letter-spacing:-.025em;max-width:650px;margin:13px 0 0;font-size:20px;line-height:1.75}.section-heading span{color:#999;font-size:12px}.next-action-section{padding-top:48px}.next-action-card{background:var(--card);border:1.5px solid var(--blue);box-shadow:0 4px 18px color-mix(in srgb, var(--blue) 12%, transparent);border-radius:10px;align-items:flex-start;gap:16px;margin-top:13px;padding:20px 24px;display:flex}.next-action-arrow{color:var(--blue);flex-shrink:0;font-size:22px;font-weight:700;line-height:1.5}.next-action-text{letter-spacing:-.02em;color:var(--ink);margin:0;font-size:17px;font-weight:600;line-height:1.65}.task-list{gap:12px;margin-top:16px;display:grid}.task-card{--priority:#aaa;background:var(--card);border:1px solid var(--line);box-shadow:0 3px 12px var(--card-shadow);border-radius:9px;padding:19px 20px 19px 23px;position:relative;overflow:hidden}.task-card:before{content:"";background:var(--priority);border-radius:0 4px 4px 0;width:3px;position:absolute;top:12px;bottom:12px;left:0}.task-card.high{--priority:var(--blue)}.task-card.medium{--priority:#8fbc8f}.task-card.low{opacity:.7}.task-meta{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.task-title{letter-spacing:-.015em;font-size:15px;font-weight:600}.priority{color:var(--priority);letter-spacing:.09em;flex-shrink:0;font-size:10px;font-weight:700}.task-action{color:var(--sub);margin:9px 0 0;font-size:13px;line-height:1.65}.diagram-scroll{border:1px solid var(--line);background:var(--card);-webkit-overflow-scrolling:touch;border-radius:9px;margin-top:16px;padding:20px;overflow-x:auto}.diagram{justify-content:center;display:flex}.diagram svg{max-width:100%;height:auto}.site-footer{border-top:1px solid var(--line);text-align:center;color:var(--sub);margin-top:64px;padding-top:24px;font-size:12px}.site-footer p{margin:0}.footer-link{color:var(--sub);text-underline-offset:3px;text-decoration:underline;transition:color .2s}.footer-link:hover{color:var(--blue)}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=768px){.privacy-note{display:none}.summary-text{font-size:18px}.intro{padding-top:72px}h1{font-size:clamp(28px,7vw,40px)}}@media (width<=560px){.shell{width:calc(100% - 32px);padding-top:20px;padding-bottom:60px}.brand{font-size:18px}.intro{padding-top:52px}h1{margin:10px 0 12px}.lede{margin-bottom:24px;font-size:14px}textarea{min-height:130px;font-size:16px}.primary-button{gap:14px;padding:0 16px;font-size:14px}.result-view{padding-top:44px}.summary-section,.tasks-section,.diagram-section{padding-top:36px}.summary-text{font-size:17px}.diagram-scroll{border-radius:0;margin-left:-16px;margin-right:-16px;padding:16px}.task-card{padding:15px 16px 15px 20px}}@media (width<=380px){.shell{width:calc(100% - 24px)}.form-footer{padding:8px 10px 8px 14px}.examples button{padding:7px 11px}}