:root{--bg: #f2f6fc;--surface: #ffffff;--surface-soft: #f7faff;--surface2: #e8eff9;--border: #d4e1f1;--text: #173251;--muted: #6f86a6;--primary: #145ba8;--primary-hover: #0e4786;--success: #10a66f;--danger: #d6455d;--radius: 8px;font-family:Inter,Segoe UI,Arial,sans-serif;line-height:1.5;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg)}#root{min-height:100vh}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button{cursor:pointer}.layout{max-width:1240px;margin:0 auto;padding:1.5rem 1rem 4rem}.topbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1.5rem;padding:.8rem 1.2rem;border:1px solid var(--border);background:var(--surface);border-radius:var(--radius);box-shadow:0 2px 8px #1732510a}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.2rem;box-shadow:0 2px 8px #1732510a}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.35rem;padding:.35rem .6rem;border-radius:6px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-weight:500;font-size:.8rem;transition:all .15s ease}.btn:hover:not(:disabled){background:var(--surface-soft);border-color:#b9cce6}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-icon{padding:.4rem}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover);border-color:var(--primary-hover)}.btn-ghost{background:transparent;border-color:transparent}.btn-ghost:hover:not(:disabled){background:var(--surface2);border-color:transparent}.input,select.input,textarea.input{width:100%;padding:.45rem .6rem;border-radius:6px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:.85rem;transition:border-color .15s ease,box-shadow .15s ease}.input:focus,select.input:focus,textarea.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #145ba826}label{display:block;font-size:.85rem;font-weight:600;color:var(--text);margin-bottom:.3rem}h1,h2,h3{margin:0 0 .5rem;font-weight:700;letter-spacing:-.01em;color:var(--text)}.badge{display:inline-flex;align-items:center;font-size:.7rem;font-weight:600;padding:.15rem .5rem;border-radius:999px;border:1px solid var(--border);background:var(--surface2);color:var(--muted)}.badge-live{background:#10a66f1f;color:var(--success);border-color:#10a66f40}.grid2{display:grid;gap:1rem}@media(min-width:768px){.grid2{grid-template-columns:1fr 1fr}}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:1.5rem}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;box-shadow:0 2px 8px #1732510a}.stat-title{color:var(--muted);font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.stat-value{font-size:1.5rem;font-weight:700;margin-top:.25rem;color:var(--text)}.editor-wrapper{display:flex;flex-direction:column;height:100vh;overflow:hidden;background:var(--bg)}.editor-header{height:70px;min-height:70px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;z-index:10}.editor-main{display:flex;flex:1;overflow:hidden}.editor-sidebar-left{width:min(400px,32vw);min-width:320px;max-width:460px;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;z-index:5}.editor-canvas{flex:1;overflow-y:auto;padding:2rem;display:flex;flex-direction:column;align-items:center}.editor-sidebar-right{width:340px;background:var(--surface);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;z-index:5}.editor-canvas-page{width:100%;max-width:760px;background:var(--surface);border-radius:var(--radius);box-shadow:0 8px 30px #1732510f;min-height:800px;height:auto;flex-shrink:0;padding:3rem 4rem;margin-bottom:4rem}.editor-question-block{border:2px solid transparent;padding:1.5rem;margin:0 -1.5rem 1rem;border-radius:var(--radius);transition:all .2s ease;cursor:pointer;position:relative}.editor-question-block:hover{background:var(--surface-soft);border-color:var(--border)}.editor-question-block.selected{background:var(--surface-soft);border-color:var(--primary);box-shadow:0 0 0 4px #145ba81a}.editor-sidebar-section{padding:1.2rem;border-bottom:1px solid var(--border)}.editor-sidebar-title{font-size:.75rem;font-weight:700;text-transform:uppercase;color:var(--muted);letter-spacing:.05em;margin-bottom:1rem}.toolbox-btn{display:flex;align-items:center;gap:.75rem;width:100%;padding:.75rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:.85rem;font-weight:500;text-align:left;margin-bottom:.5rem;transition:all .15s ease}.toolbox-btn:hover{background:var(--surface-soft);border-color:var(--primary);color:var(--primary);transform:translateY(-1px);box-shadow:0 2px 8px #145ba81a}.toolbox-btn svg{color:var(--muted)}.toolbox-btn:hover svg{color:var(--primary)}