*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:#f0f2f5;color:#333;line-height:1.6;font-size:15px}
:root{--primary:#4f46e5;--primary-light:#818cf8;--primary-dark:#3730a3;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--gray:#6b7280;--gray-light:#d1d5db;--bg:#f0f2f5;--card:#fff;--radius:12px;--shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04)}
.container{max-width:720px;margin:0 auto;padding:16px}
.header{background:linear-gradient(135deg,#4f46e5,#6366f1);color:#fff;padding:14px 20px;font-size:18px;font-weight:600;position:sticky;top:0;z-index:100;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 8px rgba(79,70,229,.2)}
.header a{color:rgba(255,255,255,.9);text-decoration:none;font-size:14px;font-weight:400;padding:4px 10px;border-radius:6px;transition:background .2s}
.header a:hover{background:rgba(255,255,255,.15)}
.card{background:var(--card);border-radius:var(--radius);padding:18px;margin-bottom:14px;box-shadow:var(--shadow)}
.card-title{font-size:17px;font-weight:600;margin-bottom:6px;color:#1f2937}
.card-meta{font-size:13px;color:var(--gray);margin-bottom:4px}
.card-footer{display:flex;justify-content:space-between;align-items:center;margin-top:12px;flex-wrap:wrap;gap:8px}
.card-footer .btn-group{display:flex;gap:6px;flex-wrap:wrap}

/* Badges */
.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:500}
.badge-success{background:#d1fae5;color:#065f46}
.badge-warning{background:#fef3c7;color:#92400e}
.badge-danger{background:#fee2e2;color:#991b1b}
.badge-info{background:#dbeafe;color:#1e40af}
.badge-gray{background:#f3f4f6;color:#6b7280}
.count-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:20px;font-size:13px;font-weight:500}
.count-badge.open{background:#dbeafe;color:#1e40af}
.count-badge.full{background:#fee2e2;color:#991b1b}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:4px;padding:10px 20px;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;text-decoration:none;line-height:1.4}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:linear-gradient(135deg,#4f46e5,#6366f1);color:#fff;box-shadow:0 2px 8px rgba(79,70,229,.25)}
.btn-primary:hover:not(:disabled){box-shadow:0 4px 16px rgba(79,70,229,.35);transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--primary);border:1.5px solid var(--gray-light)}
.btn-outline:hover:not(:disabled){border-color:var(--primary);background:#f5f3ff}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover:not(:disabled){background:#dc2626}
.btn-success{background:var(--success);color:#fff}
.btn-sm{padding:6px 12px;font-size:13px}
.btn-lg{padding:14px 28px;font-size:16px}
.btn-block{width:100%;justify-content:center}
.btn-icon{padding:8px;border-radius:8px;min-width:36px;justify-content:center}

/* Forms */
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:14px;font-weight:500;color:#374151;margin-bottom:5px}
.required{color:var(--danger);margin-left:2px}
.form-input{width:100%;padding:10px 14px;border:1.5px solid var(--gray-light);border-radius:8px;font-size:15px;color:#333;background:#fff;transition:border-color .2s;font-family:inherit;line-height:1.5}
.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.1)}
textarea.form-input{min-height:80px;resize:vertical}
select.form-input{-webkit-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}
input[type=date].form-input{min-width:0}

/* Checkbox & Radio groups */
.check-group,.radio-group{padding:4px 0}
.check-group label,.radio-group label{display:flex;align-items:center;gap:8px;padding:8px 12px;margin:4px 0;border:1.5px solid var(--gray-light);border-radius:8px;cursor:pointer;font-weight:400;transition:all .2s}
.check-group label:hover,.radio-group label:hover{border-color:var(--primary-light);background:#f5f3ff}
.check-group input[type=checkbox],.radio-group input[type=radio]{width:18px;height:18px;accent-color:var(--primary)}
.check-inline{display:inline-flex;align-items:center;gap:4px;font-size:14px;cursor:pointer}

/* Field builder */
.field-row{display:flex;gap:8px;align-items:center;padding:8px 0;border-bottom:1px solid #f3f4f6;flex-wrap:wrap}
.field-row:last-child{border-bottom:none}
.field-row input,.field-row select{flex:1;min-width:100px}
.field-row .btn-sm{flex-shrink:0}

/* Tags */
.tag{display:inline-flex;align-items:center;gap:3px;padding:4px 10px;border-radius:20px;font-size:13px;background:#f0f2f5;color:#374151;margin:2px 4px 2px 0}
.tag-primary{background:#ede9fe;color:var(--primary-dark)}
.tag-success{background:#d1fae5;color:#065f46}
.tag-remove{cursor:pointer;color:var(--gray);font-size:14px;font-weight:700;margin-left:2px}
.tag-remove:hover{color:var(--danger)}
.tag-add-row{display:flex;gap:8px;margin-top:8px}
.tag-add-row input{flex:1}

/* Section */
.section-title{font-size:15px;font-weight:600;color:#1f2937;padding:10px 0 6px;margin-bottom:8px;border-bottom:1.5px solid #f3f4f6;display:flex;justify-content:space-between;align-items:center}
.section-title .sub{font-size:13px;color:var(--gray);font-weight:400}

/* Tables */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:8px 0}
.data-table{width:100%;border-collapse:collapse;font-size:14px;min-width:600px}
.data-table th{background:#f8fafc;padding:10px 12px;text-align:left;font-weight:600;color:#374151;border-bottom:2px solid #e5e7eb;white-space:nowrap;font-size:13px}
.data-table td{padding:10px 12px;border-bottom:1px solid #f3f4f6;white-space:nowrap}
.data-table tr:hover td{background:#f8fafc}

/* Stats grid */
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:16px}
.stat-grid.col4{grid-template-columns:repeat(4,1fr)}
.stat-grid.col5{grid-template-columns:repeat(5,1fr)}
.stat-card{background:var(--card);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);text-align:center}
.stat-card .num{font-size:28px;font-weight:700;color:var(--primary);line-height:1.2}
.stat-card .lbl{font-size:13px;color:var(--gray);margin-top:4px}
.stat-card.success .num{color:var(--success)}
.stat-card.warning .num{color:var(--warning)}
.stat-card.danger .num{color:var(--danger)}

/* Empty state */
.empty-state{padding:60px 20px;text-align:center;color:var(--gray)}
.empty-icon{font-size:48px;margin-bottom:12px;opacity:.4}
.empty-state p{font-size:15px;margin-bottom:8px}

/* Success card */
.success-card{text-align:center;padding:30px 20px}
.success-icon{width:64px;height:64px;margin:0 auto 16px;background:#d1fae5;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:32px;color:var(--success)}
.success-info{text-align:left;margin:16px 0;padding:12px;background:#f8fafc;border-radius:8px}
.success-info div{padding:4px 0;font-size:14px}

/* Login */
.login-container{max-width:360px;margin:80px auto;padding:20px}
.login-container h2{text-align:center;margin-bottom:20px;color:#1f2937}

/* Admin nav */
.admin-nav{display:flex;gap:0;margin-bottom:14px;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.admin-nav a{flex:1;text-align:center;padding:12px 8px;text-decoration:none;color:var(--gray);font-size:14px;font-weight:500;transition:all .2s;border-bottom:2px solid transparent}
.admin-nav a.active{color:var(--primary);border-bottom-color:var(--primary);background:#f5f3ff}
.admin-nav a:hover{background:#f8fafc}

/* Event actions */
.event-actions{display:flex;gap:6px;flex-wrap:wrap}

/* Toast */
.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%);padding:12px 24px;background:#1f2937;color:#fff;border-radius:8px;font-size:14px;z-index:9999;animation:toastIn .3s ease;box-shadow:0 4px 16px rgba(0,0,0,.15)}
.toast-success{background:var(--success)}
.toast-error{background:var(--danger)}
@keyframes toastIn{from{opacity:0;transform:translateX(-50%) translateY(-10px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}

/* Event card */
.event-card{cursor:pointer;transition:transform .15s,box-shadow .15s}
.event-card:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,.08)}
.event-card .arrow{color:var(--primary);font-weight:600}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:200;display:flex;align-items:center;justify-content:center;padding:20px;animation:fadeIn .2s}
.modal-content{background:#fff;border-radius:16px;width:100%;max-width:520px;max-height:80vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.15);animation:slideUp .25s}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* Tabs */
.tabs{display:flex;gap:0;border-bottom:2px solid #e5e7eb;margin-bottom:16px}
.tab{padding:10px 16px;font-size:14px;font-weight:500;color:var(--gray);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .2s}
.tab.active{color:var(--primary);border-bottom-color:var(--primary)}
.tab:hover{color:#374151}

/* Info banner */
.info-banner{padding:10px 14px;background:#dbeafe;border-radius:8px;color:#1e40af;font-size:13px;margin-bottom:12px;display:flex;align-items:center;gap:8px}

/* Responsive */
@media(max-width:600px){
  .container{padding:12px}
  .card{padding:14px;margin-bottom:10px}
  .stat-grid.col4{grid-template-columns:repeat(2,1fr)}
  .stat-grid.col5{grid-template-columns:repeat(2,1fr)}
  .field-row{flex-direction:column;gap:6px}
  .admin-nav{flex-wrap:wrap}
  .admin-nav a{flex:unset;min-width:33.33%}
  .event-actions .btn{flex:1;min-width:70px}
}

/* AI section */
.ai-section{background:linear-gradient(135deg,#f5f3ff,#ede9fe);border:1.5px dashed var(--primary-light);border-radius:12px;padding:16px;margin-bottom:16px}
.ai-section .ai-hint{font-size:13px;color:var(--gray);margin-top:6px}
.ai-result{background:#fff;border-radius:8px;padding:12px;margin-top:12px;border:1.5px solid #e5e7eb}

/* Copy link row */
.copy-row{display:flex;gap:8px;margin-top:8px}
.copy-row input{flex:1;background:#f8fafc;border:1.5px solid var(--gray-light);border-radius:8px;padding:8px 12px;font-size:13px;color:var(--gray);font-family:monospace}

/* Countdown */
.countdown{font-size:14px;color:var(--warning);font-weight:500}

/* Quick preset buttons */
.preset-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.preset-chip{padding:6px 14px;background:#fff;border:1.5px solid var(--gray-light);border-radius:20px;font-size:13px;cursor:pointer;transition:all .2s}
.preset-chip:hover{border-color:var(--primary);color:var(--primary);background:#f5f3ff}
.preset-chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ==================== NEW: Card-style field builder (v3) ==================== */
.form-page{padding-bottom:80px}
.form-fixed-footer{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid #e5e7eb;padding:10px 16px;box-shadow:0 -2px 12px rgba(0,0,0,.06);z-index:90;display:flex;gap:10px;justify-content:center;max-width:720px;margin:0 auto}
.form-fixed-footer .btn{flex:1;max-width:200px}

.field-card{background:#fff;border-radius:12px;padding:14px 16px;margin-bottom:12px;box-shadow:var(--shadow);border:1.5px solid transparent;transition:border-color .2s}
.field-card:hover{border-color:var(--primary-light)}
.field-card-header{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.field-number{color:var(--gray);font-size:13px;min-width:22px;text-align:right}
.field-required-toggle{display:flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:4px;background:#f3f4f6;cursor:pointer;transition:all .2s}
.field-required-toggle.active{background:var(--warning)}
.field-required-toggle input{display:none}
.field-required-toggle .checkmark{color:#fff;font-size:12px;font-weight:700;opacity:0}
.field-required-toggle.active .checkmark{opacity:1}
.field-title-input{flex:1;border:none;border-bottom:1.5px solid #e5e7eb;font-size:16px;font-weight:600;padding:4px 0;background:transparent;outline:none;transition:border-color .2s}
.field-title-input:focus{border-bottom-color:var(--primary)}
.field-type-badge{padding:3px 10px;border-radius:20px;font-size:12px;background:#f3f4f6;color:#6b7280;white-space:nowrap}
.field-actions{display:flex;gap:4px;align-items:center}
.field-actions .btn-icon{background:transparent;border:none;color:var(--gray);font-size:16px;cursor:pointer;padding:6px;border-radius:6px;transition:all .2s}
.field-actions .btn-icon:hover{background:#f3f4f6;color:var(--danger)}
.field-actions .btn-icon.move:hover{color:var(--primary)}

.field-options{padding-left:32px}
.option-row{display:flex;align-items:center;gap:8px;margin:6px 0}
.option-row .opt-icon{width:18px;height:18px;border-radius:50%;border:1.5px solid var(--gray-light);flex-shrink:0}
.option-row .opt-icon.checkbox{border-radius:4px}
.option-row input{flex:1;border:none;border-bottom:1px solid #e5e7eb;padding:5px 0;font-size:14px;background:transparent;outline:none}
.option-row input:focus{border-bottom-color:var(--primary)}
.option-row .btn-icon{color:var(--gray);background:transparent;border:none;font-size:16px;cursor:pointer;padding:4px;border-radius:4px}
.option-row .btn-icon:hover{color:var(--danger);background:#fee2e2}
.option-add-btn{display:inline-flex;align-items:center;gap:4px;color:var(--primary);font-size:13px;font-weight:500;margin-top:6px;cursor:pointer;padding:4px 0;background:transparent;border:none}
.option-add-btn:hover{color:var(--primary-dark)}
.option-tools{display:flex;gap:12px;margin-top:6px;padding-left:26px}
.option-tool{color:var(--primary);font-size:13px;cursor:pointer;background:transparent;border:none}
.option-tool:hover{text-decoration:underline}

.field-placeholder{padding-left:32px;margin-top:8px}
.field-placeholder input{width:100%;border:1.5px solid var(--gray-light);border-radius:8px;padding:8px 12px;font-size:14px;background:#f8fafc}
.field-placeholder input:focus{outline:none;border-color:var(--primary);background:#fff}

.add-field-bar{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}
.add-field-bar .btn{background:#fff;border:1.5px solid var(--gray-light);color:#374151;border-radius:20px;font-size:13px;padding:6px 14px}
.add-field-bar .btn:hover{border-color:var(--primary);color:var(--primary);background:#f5f3ff}

.public-form-info{font-size:13px;color:var(--gray);margin-bottom:12px;line-height:1.8}
.public-form-info p{display:flex;align-items:flex-start;gap:4px}
.field-index-num{display:inline-block;min-width:22px;color:#1f2937;font-weight:600}

/* Admin management rows */
.admin-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid #f0f0f0}
.admin-row:last-child{border-bottom:none}

@media(max-width:600px){
  .form-fixed-footer{padding:10px 12px}
  .field-card{padding:12px}
  .field-actions .btn-icon{font-size:15px;padding:5px}
  .field-options{padding-left:0;margin-top:10px}
  .field-placeholder{padding-left:0}
}