:root{--primary:#1f4e79;--border:#e4e4e7;--text:#18181b;--muted:#6b7280;--danger:#b91c1c;--danger-bg:#fef2f2;--subtle:#f4f4f5;--highlight:#fef9c3;--highlight-border:#ca8a04;color:var(--text);background:#fff;font-family:Pretendard,Malgun Gothic,system-ui,sans-serif;font-size:14px}*{box-sizing:border-box}body,h1,h2,p{margin:0}button,input{font:inherit;color:inherit}button:disabled{cursor:default;opacity:.5}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}#root{place-items:center;min-height:100vh;padding:24px 16px;display:grid}.otp{text-align:center;justify-items:center;gap:20px;width:100%;max-width:480px;display:grid}.brand{color:var(--primary);font-size:18px;font-weight:700}h1{font-size:22px;font-weight:700}.muted{color:var(--muted);font-size:13px}.otp-boxes{gap:8px;display:flex;position:relative}.otp-box{border:1.5px solid var(--border);width:44px;height:52px;color:var(--primary);border-radius:8px;place-items:center;font-size:24px;display:grid}.otp-boxes:focus-within .otp-box.active{border-color:var(--primary)}.otp-boxes:focus-within .otp-box.active:after{content:"";background:var(--primary);width:1.5px;height:24px;animation:1s steps(2,start) infinite blink}.otp-boxes.disabled .otp-box{background:#fafafa;border-color:#ededed}.otp-input{opacity:0;caret-color:#0000;border:0;width:100%;height:100%;position:absolute;inset:0}.otp-error{color:var(--danger);font-size:13px}.link-btn{color:var(--primary);cursor:pointer;background:0 0;border:0;padding:4px 8px;font-weight:600;text-decoration:underline}.spinner{border:2px solid var(--primary);border-right-color:#0000;border-radius:50%;width:20px;height:20px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@keyframes blink{to{visibility:hidden}}.end-title{font-size:18px;font-weight:700;line-height:1.5}.end-icon{color:var(--primary)}.doc{align-self:start;gap:12px;width:100%;max-width:720px;display:grid}.doc-head{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.notice{background:var(--danger-bg);color:var(--danger);border-radius:6px;padding:10px 14px;font-size:13px}.pre{white-space:pre-wrap;overflow-wrap:anywhere}.sheet{border:1px solid var(--border);background:#fff;border-radius:8px;gap:12px;padding:24px 20px;display:grid;position:relative}.sheet h1{text-align:center;font-size:20px}.sheet .sub{color:var(--muted);text-align:center;font-size:13px}.sheet hr{border:0;border-top:2px solid var(--text);width:100%;margin:0}.sheet h2{font-size:15px}.sheet table{border-collapse:collapse;border:1px solid var(--border);width:100%}.sheet th,.sheet td{border-top:1px solid var(--border);text-align:left;vertical-align:middle;padding:10px 12px}.sheet th{background:var(--subtle);font-weight:500}.sheet th:first-child,.sheet td:first-child{width:40%}.num{color:var(--muted);text-align:center;font-size:12px}.check{cursor:pointer;background:0 0;border:0;border-radius:8px;align-items:center;gap:10px;min-height:44px;padding:6px 12px 6px 6px;display:inline-flex}.check-box{border:3px solid var(--highlight-border);background:var(--highlight);width:32px;height:32px;color:var(--text);border-radius:6px;flex:none;place-items:center;display:grid}.sign-box,.write-box{border-radius:8px;gap:10px;padding:12px;display:grid}.sign-box{border:3px solid var(--highlight-border);background:var(--highlight);justify-items:start}.write-box{border:1px solid var(--border)}.box-head{justify-content:space-between;align-items:center;gap:12px;display:flex}.box-label{color:var(--muted);font-size:13px}.ink-pad{aspect-ratio:3;border:1px dashed var(--border);touch-action:none;cursor:crosshair;background:#fff;border-radius:6px;width:100%;display:block}.ink-pad path{fill:none;stroke:var(--text);stroke-width:2px;stroke-linecap:round;stroke-linejoin:round}.pen-overlay{pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.pen-overlay path{fill:none;stroke-width:3px;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.btn{border:1px solid var(--border);cursor:pointer;background:#fff;border-radius:6px;justify-content:center;align-items:center;min-height:44px;padding:0 20px;font-weight:700;display:inline-flex}.btn-primary{border-color:var(--primary);background:var(--primary);color:#fff}.icon-btn{cursor:pointer;background:0 0;border:0;place-items:center;width:44px;height:44px;display:grid}.modal-back{background:#0006;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.modal{background:#fff;border-radius:12px;gap:16px;width:100%;max-width:720px;padding:20px;display:grid}.modal h2{font-size:18px}.modal-actions{justify-content:flex-end;gap:8px;display:flex}