:root{--bg: #FAFAFA;--panel: #FFFFFF;--panel-2: #F3F4F6;--line: #E5E7EB;--text: #111827;--text-dim: #6B7280;--text-dimmer: #9CA3AF;--accent: #1E40AF;--accent-light: #3B82F6;--accent-bg: #EFF6FF;--good: #059669;--good-bg: #ECFDF5;--warn: #D97706;--warn-bg: #FFFBEB;--danger: #DC2626;--danger-bg: #FEF2F2;--radius: 10px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit;font-size:14.5px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .15s,border-color .15s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:#1a3593}.btn-primary:disabled{background:#9ca3af;cursor:not-allowed}.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}.btn-sm{padding:6px 12px;font-size:13px}.btn-block{width:100%}.field{margin-bottom:16px}.field label{display:block;font-size:13px;font-weight:600;color:var(--text-dim);margin-bottom:6px}.field input,.field textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text)}.field input:focus,.field textarea:focus{outline:2px solid var(--accent-light);outline-offset:1px}.field textarea{resize:vertical;min-height:140px;line-height:1.6}.field .hint{font-size:12px;color:var(--text-dimmer);margin-top:4px}.error-banner{background:var(--danger-bg);color:var(--danger);border:1px solid #FCA5A5;padding:10px 14px;border-radius:8px;font-size:13.5px;margin-bottom:16px}.success-banner{background:var(--good-bg);color:var(--good);border:1px solid #A7F3D0;padding:10px 14px;border-radius:8px;font-size:13.5px;margin-bottom:16px}.auth-wrap{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:400px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:0 1px 3px #0000000a}.auth-card h1{font-size:22px;margin:0 0 4px}.auth-card .sub{color:var(--text-dim);font-size:13.5px;margin:0 0 24px}.auth-links{margin-top:20px;text-align:center;font-size:13.5px;color:var(--text-dim)}.auth-links .research-link{display:block;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}.topbar{position:sticky;top:0;z-index:50;height:56px;background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 20px}.topbar .brand{font-weight:700;font-size:15px}.topbar .brand a{color:var(--text)}.topbar .role-badge{font-size:12px;color:var(--accent);background:var(--accent-bg);padding:3px 10px;border-radius:999px;margin-left:10px;font-weight:600}.topbar .right{display:flex;align-items:center;gap:10px}.mobile-menu-btn{display:none}.shell{display:flex;min-height:calc(100vh - 56px)}.sidebar{width:280px;flex:0 0 280px;background:var(--panel);border-right:1px solid var(--line);padding:20px 14px;overflow-y:auto}.sidebar .progress-summary{padding:4px 8px 16px}.sidebar .progress-bar-track{height:6px;background:var(--panel-2);border-radius:999px;overflow:hidden}.sidebar .progress-bar-fill{height:100%;background:var(--accent)}.sidebar .progress-text{font-size:12px;color:var(--text-dim);margin-top:6px}.day-group-label{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-dimmer);margin:18px 8px 6px}.day-group-label:first-child{margin-top:4px}.day-item{display:flex;align-items:center;gap:10px;padding:9px 8px;border-radius:8px;color:var(--text);font-size:13.5px;cursor:pointer}.day-item:hover{background:var(--panel-2)}.day-item.active{background:var(--accent-bg);color:var(--accent);font-weight:600}.day-status-dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto;background:var(--line)}.day-status-dot.completed{background:var(--good)}.day-status-dot.in_progress{background:var(--warn)}.main{flex:1;min-width:0;padding:32px 40px}.reading{max-width:720px;margin:0 auto}.reading h1{font-size:26px;margin:0 0 6px}.reading .day-meta{color:var(--text-dim);font-size:13.5px;margin-bottom:24px}.reading .content-body{font-size:16px;line-height:1.8}.reading .content-body p{margin:0 0 18px}.reading .content-body strong{color:var(--text);font-weight:700}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-top:28px}.card h2{font-size:17px;margin:0 0 14px}.quiz-q{margin-bottom:22px}.quiz-q .q-text{font-weight:600;margin-bottom:10px;font-size:14.5px}.quiz-option{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;margin-bottom:8px;cursor:pointer;font-size:14px}.quiz-option:hover{border-color:var(--accent-light)}.quiz-option.selected{border-color:var(--accent);background:var(--accent-bg)}.quiz-option input{margin:0}.word-count{font-size:12.5px;color:var(--text-dimmer);margin-top:6px}.word-count.ok{color:var(--good)}.day-nav-buttons{display:flex;justify-content:space-between;margin-top:32px}.completion-badge{display:inline-flex;align-items:center;gap:6px;background:var(--good-bg);color:var(--good);padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;margin-bottom:16px}.credential-box{background:var(--accent-bg);border:1px solid #BFDBFE;border-radius:var(--radius);padding:24px;text-align:center;margin-top:28px}.credential-id{font-family:Courier New,monospace;font-size:18px;font-weight:700;color:var(--accent);margin:10px 0}.verify-wrap{max-width:480px;margin:60px auto;padding:0 20px}.verify-result{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px;text-align:center}.verify-result.valid{border-color:#a7f3d0}.verify-result.invalid{border-color:#fca5a5}.admin-wrap{max-width:1200px;margin:0 auto;padding:32px 24px}.admin-tabs{display:flex;gap:6px;margin-bottom:20px;flex-wrap:wrap}.admin-tab{padding:8px 16px;border-radius:8px;font-size:13.5px;font-weight:600;border:1px solid var(--line);background:var(--panel);color:var(--text-dim);cursor:pointer}.admin-tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}.admin-table{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.admin-table th,.admin-table td{text-align:left;padding:10px 14px;font-size:13.5px;border-bottom:1px solid var(--line)}.admin-table th{background:var(--panel-2);font-weight:600;color:var(--text-dim);font-size:12px;text-transform:uppercase;letter-spacing:.03em}.admin-table tr:last-child td{border-bottom:none}.admin-table tr:hover td{background:var(--panel-2)}.pct-pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:700}.pct-pill.done{background:var(--good-bg);color:var(--good)}.pct-pill.mid{background:var(--warn-bg);color:var(--warn)}.pct-pill.low{background:var(--panel-2);color:var(--text-dim)}.admin-topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.admin-detail-back{margin-bottom:16px}#print-watermark{display:none}@media print{#print-watermark{display:block;position:fixed;top:0;left:0;right:0;bottom:0;background-size:560px 200px;background-repeat:repeat;z-index:9999;pointer-events:none;opacity:1}.no-print{display:none!important}body{background:#fff}.shell{display:block}.sidebar{display:none}.main{padding:0}.reading{max-width:100%}}@media (max-width: 860px){.sidebar{position:fixed;left:0;top:56px;bottom:0;z-index:40;transform:translate(-100%);transition:transform .2s;box-shadow:2px 0 12px #00000014}.sidebar.open{transform:translate(0)}.main{padding:20px}.mobile-menu-btn{display:inline-flex}}