:root{color-scheme:light;font-family:Helvetica Neue,Helvetica,游ゴシック体,YuGothic,Yu Gothic,sans-serif;background:#fff;color:#161616;--bg: #ffffff;--surface: #ffffff;--surface-soft: #ffffff;--text: #161616;--muted: #77736b;--border: #dfdcd4;--strong-border: #aaa59b;--button: #161616;--button-text: #fffefa;--radius: 8px;--shadow: none}:root[data-theme=dark]{color-scheme:dark;background:#171714;color:#f3f1eb;--bg: #171714;--surface: #1d1d1a;--surface-soft: #20201c;--text: #f3f1eb;--muted: #aaa69c;--border: #37362f;--strong-border: #5c594e;--button: #f3f1eb;--button-text: #171714;--radius: 8px;--shadow: none}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg)}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{width:min(1120px,calc(100% - 96px));margin:0 auto;padding:124px 0 72px}.site-header{position:fixed;z-index:10;top:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;gap:32px;min-height:64px;border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--bg) 96%,transparent);padding:0 48px}h1{margin:0;color:var(--text);font-family:Helvetica Neue,Helvetica,游ゴシック体,YuGothic,Yu Gothic,sans-serif;font-size:1rem;font-weight:600;line-height:1;letter-spacing:0}.top-actions{display:flex;align-items:center;gap:28px;flex-wrap:wrap;justify-content:flex-end}.nav-button,.theme-switch,.text-button{min-height:36px;border:0;border-bottom:1px solid transparent;border-radius:0;background:transparent;color:var(--muted);padding:0 0 4px}.primary-button{min-height:40px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);padding:0 14px}.nav-button,.theme-switch,.text-button,.primary-button,.secondary-button,.reset-button,.load-more-button{white-space:nowrap}.secondary-button,.reset-button{min-height:42px;border:1px solid var(--border);border-radius:var(--radius);background:transparent;color:var(--text);padding:0 14px}.nav-button.is-active,.theme-switch[aria-pressed=true]{border-bottom-color:var(--text);color:var(--text)}.primary-button{border-color:var(--button);background:var(--button);color:var(--button-text)}.checker-layout{display:grid;grid-template-columns:minmax(0,430px) minmax(0,1fr);gap:28px;align-items:start}.control-column{display:grid;gap:14px}.selector-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.panel,.preview-card,.local-font-box{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow)}.panel{padding:18px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px;color:var(--text);font-size:.9rem}.text-button{min-height:32px;padding:0;color:var(--muted);white-space:nowrap;background:transparent}select,input,textarea{width:100%;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface-soft);color:var(--text);padding:11px 12px;outline:none}select:focus,input:focus,textarea:focus{border-color:var(--strong-border)}.selector-panel{display:grid;gap:10px}.segmented-control{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.segmented-control button{min-height:36px;border:0;background:transparent;color:var(--muted)}.segmented-control button.is-active{background:color-mix(in srgb,var(--text) 8%,transparent);color:var(--text)}textarea{resize:vertical;line-height:1.65}.counter,.preview-meta,.status-message,.font-card-meta{color:var(--muted);font-size:.82rem}.weight-panel{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.weight-group{display:grid;gap:12px}.weight-group+.weight-group{border-left:1px solid var(--border);padding-left:16px}.weight-group p{margin:0;color:var(--text);font-size:.88rem}.range-row{display:grid;gap:7px}.range-row span{display:flex;justify-content:space-between;color:var(--muted)}.range-row strong{color:var(--text);font-weight:500}.range-row input[type=range]{appearance:none;height:18px;border:0;background:transparent;padding:0}.range-row input[type=range]::-webkit-slider-runnable-track{height:2px;border-radius:999px;background:var(--border)}.range-row input[type=range]::-webkit-slider-thumb{appearance:none;width:11px;height:11px;margin-top:-4.5px;border:1px solid var(--text);border-radius:50%;background:var(--surface)}.range-row input[type=range]::-moz-range-track{height:2px;border-radius:999px;background:var(--border)}.range-row input[type=range]::-moz-range-thumb{width:11px;height:11px;border:1px solid var(--text);border-radius:50%;background:var(--surface)}.preview-card{min-height:460px;padding:clamp(24px,3.4vw,38px);position:sticky;top:24px;max-height:calc(100vh - 48px);overflow:auto}.preview-meta{margin:0 0 28px}.preview-card h2{margin:0 0 24px;color:var(--text);font-size:clamp(1.55rem,3.2vw,2.8rem);line-height:1.22;letter-spacing:0;overflow-wrap:anywhere}.preview-body{margin:0;color:var(--text);font-size:clamp(.95rem,1.25vw,1.08rem);line-height:1.9;overflow-wrap:anywhere}.library-layout{display:grid;gap:16px}.library-note{margin:0;color:var(--muted);font-size:.86rem;line-height:1.8}.local-font-box{display:grid;grid-template-columns:1fr auto;align-items:center;gap:16px 22px;padding:20px}.local-font-box h2{margin:0 0 8px;font-size:1.1rem;font-weight:400;letter-spacing:0}.local-font-box p{margin:0;color:var(--muted);line-height:1.7}.local-font-box .inline-status{margin-top:10px;font-size:.82rem}.status-message{grid-column:1 / -1}.status-message.error{color:#b3463e}.status-message.success{color:#54763d}.library-controls{display:grid;grid-template-columns:minmax(0,1fr) 158px 158px 120px 128px;gap:12px}.font-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.load-more-button{min-height:46px;border:1px solid var(--border);border-radius:var(--radius);background:transparent;color:var(--text)}.empty-state{margin:0;border:1px solid var(--border);border-radius:var(--radius);color:var(--muted);padding:22px}.reset-button{justify-self:start;color:var(--muted)}.font-card{display:grid;gap:18px;min-height:168px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);padding:18px;text-align:left;box-shadow:var(--shadow)}.font-card:hover{border-color:var(--strong-border)}.font-card:disabled{cursor:not-allowed}.font-card.is-unavailable{opacity:.48}.font-card-name{font-size:.9rem;color:var(--muted);overflow-wrap:anywhere;min-height:1.4em}.font-card-sample{font-size:clamp(1.45rem,3vw,2.1rem);line-height:1.2;overflow-wrap:anywhere;min-height:2.4em}.font-card-meta{display:flex;gap:10px;flex-wrap:wrap;align-self:end}.font-card-meta span{border-right:1px solid var(--border);padding-right:10px}.font-card-meta span:last-child{border-right:0;padding-right:0}.font-card-confirmed{color:var(--muted);font-size:.76rem;overflow-wrap:anywhere;min-height:1.35em}@media(max-width:900px){.checker-layout,.local-font-box,.selector-grid,.library-controls,.font-grid{grid-template-columns:1fr}.preview-card{min-height:460px;position:static;max-height:none;overflow:visible}.weight-panel{grid-template-columns:1fr}.weight-group+.weight-group{border-left:0;border-top:1px solid var(--border);padding-left:0;padding-top:18px}}@media(max-width:560px){.app-shell{width:min(100% - 28px,1180px);padding-top:96px}.site-header{min-height:72px;align-items:flex-start;padding:22px 14px 0}.top-actions{gap:16px;justify-content:flex-end}.nav-button,.theme-switch{padding:0 8px}.preview-card{padding:22px}.preview-meta{margin-bottom:32px}}