@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;700;900&display=swap";:root{--font-sans:"Inter", "Noto Sans JP", "Hiragino Sans", "Meiryo", sans-serif;--navy-950:#0b1220;--navy-900:#0f172a;--navy-800:#1e293b;--navy-700:#334155;--primary:#2563eb;--primary-deep:#1d4ed8;--primary-grad:linear-gradient(135deg, #3b82f6 0%, #2563eb 45%, #4f46e5 100%);--gold:#c9a227;--gold-soft:#e6c65c;--bg-app:#f4f6fb;--surface:#fff;--border:#e5e9f2;--text:#1f2937;--text-sub:#6b7280;--radius:14px;--radius-sm:10px;--shadow-card:0 1px 2px #0f172a0a, 0 4px 16px #0f172a0f;--shadow-card-hover:0 2px 4px #0f172a0d, 0 12px 32px #0f172a1a;--shadow-btn:0 2px 8px #2563eb59;--ring:0 0 0 3px #2563eb2e}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);background:radial-gradient(1200px 500px at 80% -10%, #2563eb0f, transparent 60%), var(--bg-app);color:var(--text);font-feature-settings:"palt";-webkit-font-smoothing:antialiased;min-height:100vh}a{color:inherit;text-decoration:none}::selection{background:#2563eb2e}button{cursor:pointer;border-radius:var(--radius-sm);letter-spacing:.02em;border:none;padding:9px 18px;font-family:inherit;font-size:14px;font-weight:600;transition:transform .15s,box-shadow .15s,filter .15s,background .15s}button:disabled{opacity:.45;cursor:not-allowed;box-shadow:none!important;transform:none!important}button:focus-visible{box-shadow:var(--ring);outline:none}.btn-primary{background:var(--primary-grad);color:#fff;box-shadow:var(--shadow-btn)}.btn-primary:hover:not(:disabled){filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 4px 14px #2563eb73}.btn-primary:active:not(:disabled){filter:brightness(.97);transform:translateY(0)}.btn-danger{color:#fff;background:linear-gradient(135deg,#ef4444,#dc2626);box-shadow:0 2px 8px #dc26264d}.btn-danger:hover:not(:disabled){filter:brightness(1.08);transform:translateY(-1px)}.btn-secondary{color:#374151;border:1px solid var(--border);background:#eef1f7}.btn-secondary:hover:not(:disabled){background:#e3e8f2;transform:translateY(-1px)}input,select,textarea{border-radius:var(--radius-sm);width:100%;color:var(--text);background:#fff;border:1.5px solid #d7dce8;padding:10px 14px;font-family:inherit;font-size:14px;transition:border-color .15s,box-shadow .15s}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:var(--ring);outline:none}input:disabled,select:disabled{color:#9ca3af;background:#f3f4f6}.form-group{margin-bottom:16px}.form-group label{color:var(--navy-700);letter-spacing:.02em;margin-bottom:6px;font-size:13px;font-weight:700;display:block}.error{color:#dc2626;margin-top:4px;font-size:13px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-card);padding:24px;transition:box-shadow .2s}.page{max-width:960px;margin:0 auto;padding:32px 16px 48px}.page-title{letter-spacing:.01em;color:var(--navy-900);margin-bottom:24px;padding-left:14px;font-size:24px;font-weight:800;position:relative}.page-title:before{content:"";background:var(--primary-grad);border-radius:4px;width:4px;position:absolute;top:4px;bottom:4px;left:0}table{border-collapse:collapse;width:100%;font-size:14px}th,td{border-bottom:1px solid var(--border);text-align:left;padding:12px 14px}th{letter-spacing:.05em;color:var(--text-sub);text-transform:uppercase;background:#f8fafd;font-size:12px;font-weight:700}tbody tr{transition:background .12s}tbody tr:hover{background:#f6f9ff}.nav{background:linear-gradient(120deg, var(--navy-950) 0%, var(--navy-900) 55%, #16233f 100%);color:#fff;z-index:50;border-bottom:1px solid #ffffff0f;align-items:center;gap:24px;min-height:60px;padding:14px 24px;display:flex;position:sticky;top:0;box-shadow:0 2px 16px #0b122059}.nav a{color:#b7c3d8;border-radius:8px;padding:6px 10px;font-size:14px;font-weight:500;transition:color .15s,background .15s}.nav a:hover{color:#fff;background:#ffffff14}.nav .nav-title{letter-spacing:.03em;color:#fff;background:0 0;margin-right:8px;padding:0;font-size:16px;font-weight:800}.nav .nav-title:hover{background:0 0}.nav .btn-secondary{color:#dbe4f0;background:#ffffff14;border:1px solid #ffffff2e}.nav .btn-secondary:hover:not(:disabled){color:#fff;background:#ffffff29}.badge{letter-spacing:.02em;border-radius:999px;align-items:center;gap:6px;padding:3px 10px;font-size:12px;font-weight:700;display:inline-flex}.badge:before{content:"";background:currentColor;border-radius:50%;width:6px;height:6px}.badge-draft{color:#6b7280;background:#eef0f4}.badge-scheduled{color:#1d4ed8;background:#e3edff}.badge-active{color:#15803d;background:#dcf5e5}.badge-closed{color:#dc2626;background:#fde8e8}.badge-archived{color:#9ca3af;background:#f3f4f6}.stat-grid{grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px;display:grid}@media (width<=640px){.stat-grid{grid-template-columns:1fr}}.stat-number{font-variant-numeric:tabular-nums;background:var(--primary-grad);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:38px;font-weight:800}.quiz-bg{background:radial-gradient(900px 480px at 85% -5%, #3b82f638, transparent 60%), radial-gradient(700px 420px at -10% 100%, #4f46e533, transparent 55%), linear-gradient(160deg, var(--navy-950) 0%, var(--navy-900) 45%, #17264a 100%);min-height:100dvh}.quiz-topbar{-webkit-backdrop-filter:blur(8px);color:#cdd8ea;letter-spacing:.08em;text-align:center;word-break:break-word;background:#ffffff0d;border-bottom:1px solid #ffffff14;width:100%;padding:10px 16px;font-size:12px;font-weight:500;line-height:1.5}.quiz-card{background:var(--surface);border:1px solid #fff9;border-radius:18px;padding:28px 24px;box-shadow:0 8px 24px #02061759,0 24px 64px #02061766}.quiz-brand{text-align:center;color:var(--gold-soft);letter-spacing:.25em;font-size:12px;font-weight:700}.progress-track{background:#ffffff1f;border-radius:999px;height:8px;overflow:hidden}.progress-fill{background:linear-gradient(90deg,#60a5fa,#818cf8);border-radius:999px;height:100%;transition:width .35s cubic-bezier(.4,0,.2,1);box-shadow:0 0 12px #60a5fab3}.quiz-choice{border:2px solid var(--border);text-align:left;width:100%;color:var(--text);background:#fff;border-radius:12px;padding:15px 18px;font-size:15px;font-weight:500;transition:border-color .15s,background .15s,transform .15s,box-shadow .15s}.quiz-choice:hover:not(:disabled){background:#f8fbff;border-color:#b6cdf5;transform:translateY(-1px)}.quiz-choice.selected{border-color:var(--primary);background:linear-gradient(135deg,#eff6ff,#eef2ff);font-weight:700;box-shadow:0 0 0 3px #2563eb1f,0 4px 12px #2563eb26}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{border:2px solid var(--bg-app);background:#c3ccdd;border-radius:6px}::-webkit-scrollbar-thumb:hover{background:#a8b4ca}