:root{--masu-white: #f7f5f0;--masu-ink: #1c1b18;--masu-ink-2: #3d3b36;--masu-ink-3: #55524b;--masu-vermilion: #b3401f;--masu-vermilion-deep: #8f3319;--masu-red: #a03123;--masu-blue: #2e5f8a;--masu-gold: #e0b64f;--masu-paper: #ffffff;--masu-ink-dark-bg: #161511;--masu-white-dim: #c4c1b8;--color-bg: var(--masu-white);--color-surface: var(--masu-paper);--color-text-primary: var(--masu-ink);--color-text-secondary: var(--masu-ink-2);--color-text-muted: var(--masu-ink-3);--color-border: var(--masu-ink);--color-border-soft: #1c1b1833;--color-accent: var(--masu-vermilion);--color-accent-hover: var(--masu-vermilion-deep);--color-error: var(--masu-red);--color-success: var(--masu-blue);--color-focus: var(--masu-vermilion);--color-accent-contrast: #ffffff;--color-surface-sunken: #efece4;--color-error-bg: #f7e4df;--color-disabled-bg: #eae7df;--color-disabled-text: #6b675e;--color-code-bg: #1c1b18;--color-code-text: #f0eee7;--color-overlay: rgb(28 27 24 / .55);--font-body: "Hiragino Sans", "Yu Gothic UI", "Yu Gothic", Meiryo, system-ui, sans-serif;--font-display: "Space Grotesk", sans-serif;--text-display-size: 3.5rem;--text-display-lh: 1.28;--text-display-weight: 700;--text-h1-size: 2.5rem;--text-h1-lh: 1.4;--text-h1-weight: 700;--text-h2-size: 1.75rem;--text-h2-lh: 1.5;--text-h2-weight: 700;--text-h3-size: 1.125rem;--text-h3-lh: 1.6;--text-h3-weight: 700;--text-body-size: .9375rem;--text-body-lh: 2;--text-body-weight: 400;--text-small-size: .8125rem;--text-small-lh: 1.9;--text-small-weight: 400;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-6: 24px;--space-8: 32px;--space-12: 48px;--space-16: 64px;--space-22: 88px;--border-width: 2px;--border-width-soft: 1px;--radius: 0;--focus-ring-width: 3px;--focus-ring-offset: 2px;--content-max: 1080px;--measure: 38em;--grid-unit: 48px;--target-min: 24px;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--color-bg: var(--masu-ink-dark-bg);--color-surface: #221f1a;--color-text-primary: #f0eee7;--color-text-secondary: var(--masu-white-dim);--color-text-muted: #a8a49a;--color-border: #f0eee7;--color-border-soft: #f0eee72e;--color-accent: var(--masu-gold);--color-accent-hover: #eac979;--color-error: #f2a08c;--color-success: #8ab9dd;--color-focus: var(--masu-gold);--color-accent-contrast: var(--masu-ink);--color-surface-sunken: #1d1b16;--color-error-bg: #3a2018;--color-disabled-bg: #2a2721;--color-disabled-text: #9a968c;--color-code-bg: #0d0c09;--color-code-text: #e8e5dc;--color-overlay: rgb(0 0 0 / .6)}}@font-face{font-family:Space Grotesk;src:url(/assets/fonts/space-grotesk-latin-500.woff2) format("woff2");font-weight:500;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2212,U+FEFF,U+FFFD}@font-face{font-family:Space Grotesk;src:url(/assets/fonts/space-grotesk-latin-700.woff2) format("woff2");font-weight:700;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2212,U+FEFF,U+FFFD}body{box-sizing:border-box;margin:0;border:var(--border-width) solid var(--color-border);min-height:100dvh;background:var(--color-bg);color:var(--color-text-primary);font-family:var(--font-body);font-size:var(--text-body-size);line-height:var(--text-body-lh)}:focus-visible{outline:var(--focus-ring-width) solid var(--color-focus);outline-offset:var(--focus-ring-offset)}a{color:inherit}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.skip-link{position:absolute;left:-9999px;top:0;background:var(--color-surface);padding:var(--space-2) var(--space-4);border:var(--border-width) solid var(--color-border)}.skip-link:focus-visible{left:var(--space-2);z-index:10}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-height:44px;padding:var(--space-3) var(--space-6);border:var(--border-width) solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text-primary);font:inherit;font-size:var(--text-small-size);font-weight:700;text-decoration:none;cursor:pointer}.btn:hover{background:var(--color-surface-sunken)}.btn--primary{border-color:var(--color-accent);background:var(--color-accent);color:var(--color-accent-contrast)}.btn--primary:hover{border-color:var(--color-accent-hover);background:var(--color-accent-hover)}.btn--danger{border-color:var(--color-error);background:var(--color-surface);color:var(--color-error)}.btn--danger:hover{background:var(--color-error-bg)}.btn[aria-disabled=true],.btn:disabled{border-color:var(--color-border-soft);background:var(--color-disabled-bg);color:var(--color-disabled-text);cursor:not-allowed}.btn--link{display:inline-flex;align-items:center;min-height:var(--target-min);padding:var(--space-1) 0;border:0;background:none;color:inherit;font:inherit;font-weight:600;text-decoration:underline;text-underline-offset:3px;cursor:pointer}.btn--link:hover{color:var(--color-accent)}.badge{display:inline-flex;align-items:center;gap:var(--space-2);padding:2px 10px;border:var(--border-width-soft) solid currentColor;font-size:.75rem;font-weight:700;white-space:nowrap}.badge--required{color:var(--color-error);border-color:var(--color-error)}.badge--muted{color:var(--color-text-muted);border-color:var(--color-border-soft)}.status-badge{display:inline-flex;align-items:center;gap:var(--space-2);padding:5px 12px;font-size:.75rem;font-weight:700;border:var(--border-width) solid var(--color-border)}.status-badge:before{content:"";width:8px;height:8px;background:currentColor}.status-badge--published{border-color:var(--color-accent);background:var(--color-accent);color:var(--color-accent-contrast)}.field{display:grid;gap:6px;margin:0}.field__label{display:flex;align-items:center;flex-wrap:wrap;gap:var(--space-2);font-weight:700}.hint{margin:0;font-size:var(--text-small-size);line-height:1.8;color:var(--color-text-muted)}.input,.textarea{border:var(--border-width) solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text-primary);font:inherit;padding:11px 14px}.textarea{min-height:180px;resize:vertical}.input:disabled,.textarea:disabled{border-color:var(--color-border-soft);background:var(--color-disabled-bg);color:var(--color-disabled-text)}.input[aria-invalid=true],.textarea[aria-invalid=true]{border-color:var(--color-error)}.checkbox,.radio{display:flex;gap:var(--space-3);align-items:flex-start}.checkbox input,.radio input{appearance:none;width:22px;height:22px;margin:4px 0 0;flex:none;border:var(--border-width) solid var(--color-border);border-radius:var(--radius);background:var(--color-surface) center / 10px 10px no-repeat;cursor:pointer}.radio input{border-radius:50%}.checkbox input:checked{background-image:linear-gradient(var(--color-accent),var(--color-accent))}.radio input:checked{background-image:radial-gradient(circle,var(--color-accent) 0 5px,transparent 5px);background-size:22px 22px}.checkbox input:disabled,.radio input:disabled{border-color:var(--color-border-soft);background-color:var(--color-disabled-bg);cursor:not-allowed}.error-text{margin:0;display:flex;gap:var(--space-2);font-size:var(--text-small-size);font-weight:600;color:var(--color-error)}.error-text:before{content:"";flex:none;width:9px;height:9px;margin-top:8px;background:currentColor}.counter{margin:0;text-align:right;font-family:var(--font-display);font-size:var(--text-small-size);color:var(--color-text-muted)}.fieldset{margin:0;border:var(--border-width) solid var(--color-border-soft);padding:var(--space-4) 18px;display:grid;gap:var(--space-4)}.fieldset legend{font-size:var(--text-small-size);font-weight:700;padding:0 var(--space-2)}.callout{border:var(--border-width) solid var(--color-border);background:var(--color-surface-sunken);padding:18px 20px}.callout--important{border:3px solid var(--color-accent);background:var(--color-surface);padding:0}.callout--important>.callout__header{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-3);margin:0;padding:var(--space-3) 20px;background:var(--color-accent);color:var(--color-accent-contrast);font-size:var(--text-small-size);font-weight:700}.callout--important>.callout__body{padding:18px 20px;display:grid;gap:var(--space-3)}.callout--error{border-color:var(--color-error);background:var(--color-error-bg)}dialog{border:var(--border-width) solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text-primary);padding:var(--space-6);max-width:min(90vw,480px)}dialog::backdrop{background:var(--color-overlay)}.markdown-body{overflow-wrap:break-word}.markdown-body pre,.markdown-body code{background:var(--color-code-bg);color:var(--color-code-text)}.markdown-body pre{padding:var(--space-4);overflow-x:auto}.markdown-body img{max-width:100%;height:auto;border:var(--border-width-soft) solid var(--color-border-soft)}