:root{--bg: #f6f7fb;--surface: #ffffff;--surface-2: #f0f2f9;--border: #e3e6ef;--text: #1c1f2a;--text-muted: #5b6377;--primary: #4f46e5;--primary-hover: #4338ca;--primary-soft: #eef2ff;--danger: #dc2626;--success: #15803d;--warning: #d97706;--radius: 10px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow-md: 0 6px 20px rgba(15, 23, 42, .08);font-family:Inter,Hiragino Sans,Noto Sans JP,system-ui,sans-serif;color:var(--text)}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100vh;background:var(--bg)}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer}input,textarea,select{font:inherit;color:inherit}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-main{flex:1;width:100%;max-width:1080px;margin:0 auto;padding:32px 24px 80px}.header{background:var(--surface);border-bottom:1px solid var(--border);padding:14px 24px;display:flex;justify-content:space-between;align-items:center}.header__title{font-weight:700;font-size:18px;color:var(--text)}.header__user{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--text-muted)}.header__avatar{width:32px;height:32px;border-radius:50%;border:1px solid var(--border)}.nav-link{padding:6px 10px;border-radius:6px;font-size:14px;font-weight:600;color:var(--text-muted);text-decoration:none}.nav-link:hover{background:var(--surface-2);color:var(--text)}.nav-link--active{background:var(--primary-soft);color:var(--primary)}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:var(--radius);border:1px solid transparent;background:var(--primary);color:#fff;font-weight:600;transition:background .12s ease,transform .12s ease}.btn:hover{background:var(--primary-hover)}.btn:disabled{background:#c7c9d4;cursor:not-allowed}.btn--secondary{background:var(--surface);color:var(--text);border-color:var(--border)}.btn--secondary:hover{background:var(--surface-2)}.btn--ghost{background:transparent;color:var(--primary)}.btn--ghost:hover{background:var(--primary-soft)}.btn--danger{background:var(--danger)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}.card+.card{margin-top:20px}.label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}.label__required{color:var(--danger);margin-left:4px}.input,.textarea{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--surface);transition:border-color .12s ease,box-shadow .12s ease}.textarea{min-height:100px;resize:vertical}.input:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f46e526}.error{color:var(--danger);font-size:13px;margin-top:4px}.form-row+.form-row{margin-top:18px}.muted{color:var(--text-muted);font-size:14px}.section-title{font-size:20px;font-weight:700;margin:0 0 8px}.section-subtitle{margin:0 0 24px;color:var(--text-muted)}.stack{display:flex;flex-direction:column;gap:12px}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.grid-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.entry-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;cursor:pointer;transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease}.entry-card:hover{border-color:var(--primary);box-shadow:var(--shadow-md)}.entry-card--selected{border-color:var(--primary);background:var(--primary-soft);box-shadow:var(--shadow-md)}.entry-card__name{font-weight:700;font-size:16px;margin:0 0 6px;color:var(--text)}.entry-card__reason{margin:0;font-size:14px;color:var(--text-muted);line-height:1.5}.checklist{list-style:none;padding:0;margin:0;display:grid;gap:8px}.checklist__item{display:flex;align-items:center;gap:8px;padding:10px 12px;background:var(--surface-2);border-radius:8px;font-size:14px}.checklist__icon{width:18px;height:18px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff}.checklist__icon--on{background:var(--success)}.checklist__icon--off{background:#9ca3af}.heading-tree{list-style:none;padding:0;margin:0}.heading-tree li{padding:6px 0;border-bottom:1px dashed var(--border);font-size:14px}.heading-tree li:last-child{border-bottom:none}.heading-tree .h2{font-weight:700}.heading-tree .h3{padding-left:20px;color:var(--text-muted)}.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.spinner--dark{border-color:#0f172a33;border-top-color:var(--primary)}@keyframes spin{to{transform:rotate(360deg)}}.skeleton{background:linear-gradient(90deg,#eceef5 25%,#f6f7fb,#eceef5 75%);background-size:200% 100%;border-radius:8px;animation:shimmer 1.2s linear infinite;height:16px}.skeleton--card{height:100px}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.landing{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#4f46e5,#7c3aed 60%,#a855f7);color:#fff;padding:40px 24px}.landing__panel{max-width:540px;text-align:center;background:#0f172a40;border:1px solid rgba(255,255,255,.18);border-radius:16px;padding:40px 32px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.landing__panel h1{margin:0 0 14px;font-size:30px}.landing__panel p{margin:0 0 28px;line-height:1.6;color:#ffffffd9}.tag{display:inline-block;padding:4px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600}.alert{padding:12px 14px;border-radius:8px;font-size:14px;margin-bottom:16px}.alert--error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}.alert--info{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}.divider{height:1px;background:var(--border);margin:24px 0}.kbd{background:var(--surface-2);border:1px solid var(--border);border-radius:6px;padding:2px 6px;font-size:12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.project-list{display:grid;gap:12px}.project-row{display:flex;align-items:center;justify-content:space-between;background:var(--surface);border:1px solid var(--border);padding:14px 18px;border-radius:var(--radius);transition:border-color .12s ease}.project-row:hover{border-color:var(--primary)}.project-row__title{font-weight:600}.project-row__meta{font-size:12px;color:var(--text-muted)}