:root{--c-bg: #f4f5f7;--c-surface: #ffffff;--c-surface-muted: #f8f9fb;--c-border: #dfe2e7;--c-border-strong: #c5cad2;--c-text: #1e2128;--c-text-muted: #5b626d;--c-text-subtle: #8a909b;--c-primary: #3a4250;--c-primary-hover: #2a3040;--c-primary-soft: #e8eaee;--c-accent: #4a5566;--c-danger: #b3261e;--c-danger-soft: #fdecec;--c-success: #2f7d4f;--c-success-soft: #e6f3ec;--c-warning: #b06b1a;--c-warning-soft: #fcf1de;--c-info: #2b5c8a;--c-info-soft: #e6eef7;--radius-sm: 4px;--radius: 6px;--radius-lg: 10px;--shadow-sm: 0 1px 2px rgba(20, 24, 32, .06);--shadow: 0 4px 12px rgba(20, 24, 32, .08);--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 48px;--font-sans: "Inter", "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font-sans);font-size:14px;line-height:1.6;color:var(--c-text);background:var(--c-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--c-primary);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{margin:0 0 var(--space-3);font-weight:600;line-height:1.35;color:var(--c-text)}h1{font-size:22px}h2{font-size:18px}h3{font-size:16px}p{margin:0 0 var(--space-3)}small{font-size:12px;color:var(--c-text-muted)}.app-shell{min-height:100%;display:flex;flex-direction:column}.app-header{background:var(--c-surface);border-bottom:1px solid var(--c-border);padding:var(--space-3) var(--space-5);display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.app-header .brand{display:flex;align-items:center;gap:var(--space-2);font-weight:700;font-size:15px;letter-spacing:.04em;color:var(--c-text)}.app-header .brand-mark{width:28px;height:28px;border-radius:var(--radius-sm);background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}.app-header nav{display:flex;gap:var(--space-1);flex:1;margin:0 var(--space-5);overflow-x:auto}.app-header nav a{padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);color:var(--c-text-muted);font-size:13px;white-space:nowrap}.app-header nav a:hover{background:var(--c-surface-muted);text-decoration:none;color:var(--c-text)}.app-header nav a.active{background:var(--c-primary-soft);color:var(--c-text);font-weight:600}.app-header .user-menu{display:flex;align-items:center;gap:var(--space-3);font-size:13px;color:var(--c-text-muted)}.app-main{flex:1;padding:var(--space-5);max-width:1280px;width:100%;margin:0 auto}.page-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);margin-bottom:var(--space-4);flex-wrap:wrap}.page-header h1{margin:0}.card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.card+.card{margin-top:var(--space-4)}.card-header{padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--c-border);display:flex;align-items:center;justify-content:space-between;gap:var(--space-3)}.card-header h2,.card-header h3{margin:0}.card-body{padding:var(--space-5)}.card-footer{padding:var(--space-3) var(--space-5);border-top:1px solid var(--c-border);background:var(--c-surface-muted);border-radius:0 0 var(--radius) var(--radius)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:8px 16px;border-radius:var(--radius-sm);border:1px solid transparent;font-family:inherit;font-size:13px;font-weight:600;line-height:1.2;cursor:pointer;transition:background-color .12s ease,border-color .12s ease,color .12s ease;text-decoration:none}.btn:disabled,.btn[aria-disabled=true]{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--c-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--c-primary-hover)}.btn-secondary{background:var(--c-surface);border-color:var(--c-border-strong);color:var(--c-text)}.btn-secondary:hover:not(:disabled){background:var(--c-surface-muted)}.btn-ghost{background:transparent;color:var(--c-text-muted)}.btn-ghost:hover:not(:disabled){background:var(--c-surface-muted);color:var(--c-text)}.btn-danger{background:var(--c-danger);color:#fff}.btn-danger:hover:not(:disabled){background:#8d1f18}.btn-sm{padding:4px 10px;font-size:12px}.btn-block{width:100%}.form-field{display:flex;flex-direction:column;gap:var(--space-1);margin-bottom:var(--space-4)}.form-field label{font-size:12px;font-weight:600;color:var(--c-text-muted)}.form-field .required{color:var(--c-danger);margin-left:2px}.form-field .hint{font-size:12px;color:var(--c-text-subtle)}.form-field .error{font-size:12px;color:var(--c-danger)}.input,.select,.textarea{width:100%;padding:8px 10px;border:1px solid var(--c-border-strong);border-radius:var(--radius-sm);background:var(--c-surface);color:var(--c-text);font-family:inherit;font-size:14px;line-height:1.4;transition:border-color .12s ease,box-shadow .12s ease}.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px #3a42501f}.input::placeholder,.textarea::placeholder{color:var(--c-text-subtle)}.textarea{resize:vertical;min-height:96px}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-4)}.form-actions{display:flex;gap:var(--space-2);justify-content:flex-end;margin-top:var(--space-4)}.alert{padding:var(--space-3) var(--space-4);border-radius:var(--radius-sm);border:1px solid transparent;font-size:13px;margin-bottom:var(--space-4)}.alert-info{background:var(--c-info-soft);border-color:#bcd2e6;color:var(--c-info)}.alert-success{background:var(--c-success-soft);border-color:#b9dec8;color:var(--c-success)}.alert-warning{background:var(--c-warning-soft);border-color:#ecd0a0;color:var(--c-warning)}.alert-danger{background:var(--c-danger-soft);border-color:#f0bfbd;color:var(--c-danger)}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;background:var(--c-primary-soft);color:var(--c-text);border:1px solid 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h3{margin-bottom:var(--space-2)}.auth-shell{min-height:100%;display:grid;place-items:center;padding:var(--space-5);background:var(--c-bg)}.auth-card{width:100%;max-width:400px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:var(--space-6)}.auth-card .auth-brand{display:flex;align-items:center;justify-content:center;gap:var(--space-2);margin-bottom:var(--space-5)}.auth-card .auth-brand-mark{width:36px;height:36px;border-radius:var(--radius);background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}.auth-card .auth-brand-title{font-size:18px;font-weight:700;letter-spacing:.04em}.auth-card .auth-sub{text-align:center;color:var(--c-text-muted);font-size:13px;margin-bottom:var(--space-5)}.accordion{border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-surface-muted);margin-top:var(--space-4)}.accordion summary{list-style:none;cursor:pointer;padding:var(--space-3) var(--space-4);display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:600;color:var(--c-text-muted)}.accordion summary::-webkit-details-marker{display:none}.accordion summary:after{content:"＋";font-size:14px;color:var(--c-text-subtle)}.accordion[open] summary:after{content:"−"}.accordion-body{padding:0 var(--space-2) var(--space-3)}.demo-list{display:flex;flex-direction:column;gap:6px;margin:0;padding:0;list-style:none}.demo-item{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);padding:8px 10px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-sm);font-size:12px}.demo-item .demo-meta{display:flex;flex-direction:column;gap:2px}.demo-item .demo-email{font-weight:600;color:var(--c-text)}.demo-item .demo-role{color:var(--c-text-subtle)}.stack-2>*+*{margin-top:var(--space-2)}.stack-3>*+*{margin-top:var(--space-3)}.stack-4>*+*{margin-top:var(--space-4)}.row{display:flex;gap:var(--space-3);align-items:center}.row-end{display:flex;gap:var(--space-2);align-items:center;justify-content:flex-end}.muted{color:var(--c-text-muted)}.subtle{color:var(--c-text-subtle)}.text-right{text-align:right}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.hidden{display:none!important}@media (max-width: 720px){.app-header{flex-wrap:wrap;padding:var(--space-3)}.app-header nav{order:3;width:100%;margin:var(--space-2) 0 0}.app-main{padding:var(--space-3)}}