:root{--bg:#f8fafc;--bg-2:#f1f5f9;--panel:#fff;--border:#00000012;--border-strong:#00000024;--purple:#7c3aed;--purple-soft:#a78bfa;--green:#10b981;--coral:#ef4444;--blue:#3b82f6;--text:#0f172a;--text-dim:#475569;--text-faint:#94a3b8;--radius:12px;--font:"Segoe UI", system-ui, -apple-system, sans-serif;--mono:"JetBrains Mono", "Cascadia Code", monospace}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh}.app-root{max-width:1280px;margin:0 auto;padding:0 20px 40px}.app-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;margin-bottom:24px;padding:18px 0;display:flex}.app-logo{font-family:var(--mono);color:var(--text);letter-spacing:-.5px;font-size:20px;font-weight:700;text-decoration:none}.logo-tag{color:var(--blue)}.logo-accent{color:var(--purple-soft)}.back-link{font-family:var(--mono);color:var(--text-dim);border:1px solid var(--border);border-radius:8px;padding:6px 14px;font-size:13px;text-decoration:none;transition:all .15s}.back-link:hover{border-color:var(--purple-soft);color:var(--purple)}.app-main{animation:.2s fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.dashboard-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.dashboard-header h1{font-size:22px;font-weight:800}.btn{font-family:var(--font);cursor:pointer;border:none;border-radius:10px;align-items:center;gap:6px;padding:10px 18px;font-size:14px;font-weight:600;transition:all .15s;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--purple-soft), var(--purple));color:#fff;box-shadow:0 8px 20px -8px #7c3aed66}.btn-primary:hover{transform:translateY(-1px)}.btn-ghost{border:1px solid var(--border);color:var(--text-dim);background:0 0}.btn-ghost:hover{border-color:var(--border-strong);color:var(--text)}.btn-danger{color:var(--coral);background:0 0;border:1px solid #ef444459;padding:5px 12px;font-size:12px}.btn-danger:hover{background:#ef444414}.btn-sm{padding:6px 14px;font-size:12px}.exam-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;display:grid}.exam-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;gap:10px;padding:20px;transition:all .2s;display:flex}.exam-card:hover{border-color:var(--purple-soft);transform:translateY(-2px);box-shadow:0 12px 30px -12px #7c3aed26}.exam-card h3{color:var(--text);font-size:16px;font-weight:700}.exam-card .meta{color:var(--text-dim);font-size:12.5px;font-family:var(--mono)}.exam-card .meta span{background:var(--bg-2);border-radius:6px;padding:2px 8px}.exam-card .actions{gap:8px;margin-top:auto;padding-top:8px;display:flex}.empty-state{text-align:center;color:var(--text-dim);padding:60px 20px}.empty-state .icon{margin-bottom:16px;font-size:48px}.empty-state h2{color:var(--text);margin-bottom:8px;font-size:20px}.empty-state p{font-size:14px}.tabs{background:var(--bg-2);border-radius:10px;flex-wrap:wrap;gap:2px;margin-bottom:24px;padding:3px;display:flex}.tab{font-family:var(--font);color:var(--text-dim);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:10px 18px;font-size:13px;font-weight:600;transition:all .15s}.tab:hover{color:var(--text)}.tab.active{background:var(--panel);color:var(--purple);box-shadow:0 2px 8px #0000000f}.form-group{margin-bottom:18px}.form-group label{color:var(--text-dim);margin-bottom:6px;font-size:13px;font-weight:600;display:block}.form-group input[type=text],.form-group input[type=number],.form-group input[type=password],.form-group select{background:var(--bg-2);border:1.5px solid var(--border);width:100%;color:var(--text);font-family:var(--font);border-radius:10px;outline:none;padding:12px 14px;font-size:14px;transition:border-color .2s}.form-group input:focus,.form-group select:focus{border-color:var(--purple);box-shadow:0 0 0 3px #7c3aed1f}.form-inline{flex-wrap:wrap;align-items:flex-end;gap:12px;display:flex}.form-inline .form-group{flex:1;min-width:140px;margin-bottom:0}.form-row{grid-template-columns:1fr 1fr;gap:16px;display:grid}@media (width<=600px){.form-row{grid-template-columns:1fr}}.settings-panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.question-list{flex-direction:column;gap:12px;display:flex}.question-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);align-items:flex-start;gap:14px;padding:16px 18px;transition:border-color .15s;display:flex}.question-card:hover{border-color:var(--border-strong)}.question-card .q-num{font-family:var(--mono);color:var(--purple-soft);flex:none;width:32px;padding-top:2px;font-size:13px;font-weight:700}.question-card .q-content{flex:1;min-width:0}.question-card .q-text{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:4px;font-size:14px;font-weight:600;display:-webkit-box;overflow:hidden}.question-card .q-meta{color:var(--text-faint);font-size:11.5px;font-family:var(--mono)}.question-card .q-meta .type-badge{background:var(--bg-2);border-radius:6px;margin-right:8px;padding:2px 8px;display:inline-block}.question-card .q-actions{flex:none;gap:6px;display:flex}.color-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;display:grid}.color-swatch{background:var(--bg-2);border-radius:10px;align-items:center;gap:10px;padding:10px 12px;display:flex}.color-swatch label{color:var(--text-dim);flex:1;font-size:12px;font-weight:600}.color-swatch input[type=color]{border:2px solid var(--border);cursor:pointer;background:0 0;border-radius:8px;width:36px;height:36px;padding:2px}.color-swatch .value{font-family:var(--mono);color:var(--text-faint);min-width:70px;font-size:11px}.lang-list{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.lang-chip{background:var(--bg-2);border:1px solid var(--border);border-radius:8px;align-items:center;gap:8px;padding:8px 12px;font-size:13px;font-weight:600;display:flex}.lang-chip .remove{cursor:pointer;color:var(--text-faint);font-size:16px;line-height:1}.lang-chip .remove:hover{color:var(--coral)}.question-form-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:200;background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.question-form-panel{background:var(--panel);border:1px solid var(--border-strong);border-radius:var(--radius);width:92%;max-width:640px;max-height:90vh;padding:24px;overflow-y:auto;box-shadow:0 30px 80px -20px #00000080}.question-form-panel h2{margin-bottom:18px;font-size:18px}.preview-frame{border:1px solid var(--border);border-radius:var(--radius);background:#fff;width:100%;height:80vh}.export-area{text-align:center;padding:40px 20px}.export-area .big-icon{margin-bottom:16px;font-size:64px}.export-area h2{margin-bottom:8px;font-size:22px}.export-area p{color:var(--text-dim);margin-bottom:24px;font-size:14px}.export-area .file-size{font-family:var(--mono);color:var(--text-faint);margin-top:12px;font-size:12px}.rule-list-editor{flex-direction:column;gap:8px;display:flex}.rule-list-editor .rule-row{align-items:center;gap:8px;display:flex}.rule-list-editor .rule-row .r-num{font-family:var(--mono);color:var(--text-faint);flex:none;width:24px;font-size:12px}.rule-list-editor .rule-row input{background:var(--bg-2);border:1.5px solid var(--border);color:var(--text);font-size:13px;font-family:var(--font);border-radius:8px;outline:none;flex:1;padding:8px 12px;transition:border-color .2s}.rule-list-editor .rule-row input:focus{border-color:var(--purple)}.section-title{color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border);margin:20px 0 10px;padding-bottom:6px;font-size:13px;font-weight:700}.question-form-actions{justify-content:flex-end;gap:10px;margin-top:20px;display:flex}@media (width<=640px){.app-root{padding:0 12px 30px}.exam-grid{grid-template-columns:1fr}.color-grid{grid-template-columns:1fr 1fr}}