:root{
  --primary:#0b4d86;
  --primary-dark:#07345c;
  --secondary:#e8f1fb;
  --success:#11845b;
  --danger:#c0392b;
  --warning:#c87800;
  --text:#17324d;
  --muted:#687b8d;
  --border:#dbe5ee;
  --surface:#ffffff;
  --background:#f3f7fb;
  --shadow:0 12px 34px rgba(23,50,77,.10);
  --radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--background)}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
.hidden{display:none!important}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;font-weight:800;color:#5d87aa;margin:0 0 8px}
.brand-mark{width:68px;height:68px;border-radius:22px;display:grid;place-items:center;background:linear-gradient(135deg,#fff,#dbefff);color:var(--primary);font-size:1.55rem;font-weight:900;box-shadow:0 12px 30px rgba(0,0,0,.16)}
.brand-mark.small{width:42px;height:42px;border-radius:13px;font-size:1rem}
.btn{border:0;border-radius:10px;padding:11px 16px;font-weight:750;transition:.18s ease;display:inline-flex;justify-content:center;align-items:center;gap:8px}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--primary);color:#fff}
.btn.secondary{background:var(--secondary);color:var(--primary)}
.btn.success{background:var(--success);color:#fff}
.btn.ghost{background:#fff;border:1px solid var(--border);color:var(--text)}
.btn.danger{background:#fff0ee;color:var(--danger)}
.btn.full{width:100%}
.icon-btn{border:0;background:transparent;font-size:1.1rem;color:var(--muted)}
label{display:flex;flex-direction:column;gap:7px;font-weight:700;font-size:.9rem;color:#35526c}
input,textarea,select{width:100%;border:1px solid var(--border);border-radius:10px;padding:11px 12px;background:#fff;color:var(--text);outline:none}
input:focus,textarea:focus,select:focus{border-color:#6aa4d4;box-shadow:0 0 0 3px rgba(11,77,134,.10)}
textarea{resize:vertical}
hr{border:0;border-top:1px solid var(--border);margin:20px 0}
.message{padding:12px 14px;border-radius:10px;margin-top:14px;font-weight:700}
.message.error{background:#fff0ee;color:#a13025}
.message.success{background:#eaf8f2;color:#0b6c49}
.auth-page{min-height:100vh;background:linear-gradient(135deg,#06345f 0%,#0b4d86 55%,#2e79b5 100%)}
.auth-shell{min-height:100vh;display:grid;grid-template-columns:minmax(320px,1.15fr) minmax(360px,.85fr);align-items:center;gap:48px;max-width:1180px;margin:auto;padding:48px 28px}
.brand-panel{color:#fff;max-width:620px}
.brand-panel h1{font-size:clamp(2.5rem,6vw,5.3rem);line-height:.98;margin:28px 0 20px}
.brand-panel>p:not(.eyebrow){font-size:1.18rem;color:#d9eafb;max-width:550px;line-height:1.7}
.brand-panel .eyebrow{color:#bcd8ef;margin-top:24px}
.feature-list{display:grid;gap:12px;margin-top:32px;color:#e7f3ff;font-weight:700}
.auth-card{background:rgba(255,255,255,.98);border-radius:24px;padding:28px;box-shadow:0 30px 80px rgba(0,0,0,.24)}
.tabs{display:grid;grid-template-columns:1fr 1fr;background:#edf4fa;border-radius:12px;padding:5px;margin-bottom:25px}
.tab{border:0;background:transparent;border-radius:9px;padding:11px;font-weight:800;color:var(--muted)}
.tab.active{background:#fff;color:var(--primary);box-shadow:0 6px 18px rgba(23,50,77,.10)}
.auth-form{display:grid;gap:16px}
.auth-form h2{margin:0 0 4px}
.form-grid{display:grid;gap:14px}
.form-grid.two{grid-template-columns:1fr 1fr}
.hint{font-size:.82rem;color:var(--muted);text-align:center}
.app-layout{min-height:100vh;display:grid;grid-template-columns:250px 1fr}
.sidebar{position:sticky;top:0;height:100vh;background:linear-gradient(180deg,#0b4d86,#07345c);color:#fff;padding:22px 16px;display:flex;flex-direction:column}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:4px 8px 22px}
.sidebar-brand strong,.sidebar-brand small{display:block}
.sidebar-brand small{color:#bbd4e9;margin-top:3px}
.side-nav{display:grid;gap:7px}
.nav-item{border:0;background:transparent;color:#d9e9f7;text-align:left;padding:12px 14px;border-radius:10px;font-weight:750}
.nav-item:hover,.nav-item.active{background:rgba(255,255,255,.13);color:#fff}
.sidebar-footer{margin-top:auto;border-top:1px solid rgba(255,255,255,.16);padding:18px 6px 0;display:grid;gap:12px}
.sidebar-footer .btn{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.22);color:#fff}
.main{padding:0 28px 42px;min-width:0}
.topbar{min-height:112px;display:flex;justify-content:space-between;align-items:center;gap:20px}
.topbar h1{margin:0;font-size:2rem}
.view{display:none}
.view.active{display:block}
.panel{background:var(--surface);border:1px solid rgba(219,229,238,.8);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:16px}
.panel-head.wrap{flex-wrap:wrap}
.panel-head h2,.panel h2,.panel h3{margin:0 0 5px}
.panel-head p,.panel>p{margin:0;color:var(--muted)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.stats-grid.mini{grid-template-columns:repeat(3,1fr);margin-top:18px}
.stat-card{background:linear-gradient(145deg,#fff,#f7fbff);border:1px solid var(--border);border-radius:15px;padding:18px;box-shadow:0 8px 24px rgba(23,50,77,.06)}
.stat-card span{display:block;color:var(--muted);font-weight:700;font-size:.87rem}
.stat-card strong{display:block;font-size:2rem;margin-top:8px}
.stats-grid.mini .stat-card strong{font-size:1.3rem}
.dashboard-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.list-stack{display:grid;gap:10px}
.list-item{border:1px solid var(--border);border-radius:12px;padding:13px;display:flex;align-items:center;justify-content:space-between;gap:14px;background:#fff}
.list-item .meta{display:flex;flex-direction:column;gap:4px}
.list-item small{color:var(--muted)}
.template-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.template-card{border:1px solid var(--border);border-radius:12px;padding:15px;background:linear-gradient(145deg,#f9fcff,#eef6fd)}
.template-card h3{font-size:1rem}
.template-card p{font-size:.83rem;color:var(--muted);min-height:40px}
.inline-actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap}
.compact-input{max-width:260px}
.forms-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}
.form-card{border:1px solid var(--border);border-radius:14px;padding:17px;background:#fff;display:grid;gap:12px}
.form-card h3{margin:0}
.form-card p{color:var(--muted);font-size:.88rem;min-height:38px;margin:0}
.form-card .badge-row{display:flex;gap:7px;flex-wrap:wrap}
.badge{display:inline-flex;padding:5px 9px;border-radius:999px;background:#eef5fb;color:#3e688b;font-size:.75rem;font-weight:800}
.badge.published{background:#eaf8f2;color:#0d7750}
.card-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.builder-toolbar{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:18px}
.builder-title-block{flex:1}
.title-input{font-size:1.45rem;font-weight:850;border:0;border-bottom:2px solid var(--border);border-radius:0;padding-left:0}
.title-input:focus{box-shadow:none;border-color:var(--primary)}
.compact-label{min-width:170px}
.builder-layout{display:grid;grid-template-columns:225px minmax(0,1fr) 260px;gap:18px;align-items:start}
.toolbox,.builder-settings{position:sticky;top:18px}
.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.tool-grid button{border:1px solid var(--border);background:#f8fbfe;color:var(--text);border-radius:9px;padding:10px;font-weight:750}
.section-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px;margin-bottom:16px;box-shadow:0 8px 24px rgba(23,50,77,.07)}
.section-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:12px}
.section-title{font-size:1.05rem;font-weight:850}
.question-card{border:1px solid var(--border);border-left:5px solid var(--primary);border-radius:13px;padding:14px;margin-top:12px;background:#fcfdff}
.question-top{display:grid;grid-template-columns:minmax(0,1fr) 180px;gap:10px}
.option-editor{display:grid;gap:7px;margin-top:10px}
.option-row{display:flex;gap:7px}
.option-row input{flex:1}
.option-row button{width:auto;border:0;background:#fff0ee;color:var(--danger);border-radius:9px;padding:0 11px}
.question-actions{display:flex;gap:8px;justify-content:flex-end;align-items:center;margin-top:12px;flex-wrap:wrap}
.question-actions .btn{padding:8px 10px;font-size:.82rem}
.toggle-row{display:flex;flex-direction:row;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);padding:10px 0}
.toggle-row input{width:auto}
.bank-layout{grid-template-columns:1.25fr .75fr}
.filter-row{display:grid;grid-template-columns:1fr 220px;gap:10px;margin-bottom:15px}
.analysis-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0}
.analysis-card{border:1px solid var(--border);border-radius:14px;padding:16px;background:#fff}
.analysis-card h3{font-size:1rem}
.bar-list{display:grid;gap:9px;margin-top:14px}
.bar-row{display:grid;grid-template-columns:120px 1fr 44px;gap:9px;align-items:center;font-size:.82rem}
.bar-track{height:11px;background:#edf3f8;border-radius:999px;overflow:hidden}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),#4e9ad1);border-radius:inherit}
.text-responses{max-height:240px;overflow:auto;display:grid;gap:8px}
.text-response{padding:9px 11px;background:#f7fafc;border-radius:9px;border:1px solid var(--border);font-size:.87rem}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:12px}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{text-align:left;padding:11px;border-bottom:1px solid var(--border);font-size:.84rem;vertical-align:top}
th{background:#f4f8fb;position:sticky;top:0}
.modal{width:min(850px,92vw);max-height:88vh;border:0;border-radius:18px;padding:0;box-shadow:0 30px 90px rgba(0,0,0,.28)}
.modal::backdrop{background:rgba(5,28,49,.62)}
.modal-head{position:sticky;top:0;background:#fff;display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--border);z-index:2}
.modal>div:not(.modal-head){padding:20px}
.preview-form{max-width:760px;margin:auto}
.preview-section{padding:16px;border:1px solid var(--border);border-radius:13px;margin:12px 0}
.preview-question{padding:11px 0;border-bottom:1px solid #edf2f6}
.preview-question:last-child{border-bottom:0}
.toast{position:fixed;right:24px;bottom:24px;z-index:100;background:#17324d;color:#fff;padding:13px 17px;border-radius:10px;box-shadow:var(--shadow);font-weight:750}
.respond-page{background:linear-gradient(180deg,#eaf3fb 0,#f7fafc 240px)}
.respond-shell{max-width:820px;margin:0 auto;padding:36px 18px 60px}
.public-form,.status-panel,.thank-you{background:#fff;border-radius:20px;box-shadow:var(--shadow);overflow:hidden}
.public-header{padding:26px 28px;border-top:10px solid var(--primary)}
.public-header h1{font-size:2rem;margin:0 0 8px}
.public-header p{color:var(--muted);white-space:pre-wrap}
.public-section{padding:22px 28px;border-top:1px solid var(--border)}
.public-question{padding:15px 0}
.public-question>label:first-child{font-size:1rem;margin-bottom:9px}
.required-star{color:var(--danger)}
.choice-list{display:grid;gap:9px}
.choice-item{display:flex;flex-direction:row;align-items:center;gap:9px;font-weight:600;color:var(--text)}
.choice-item input{width:auto}
.scale-list{display:flex;gap:10px;flex-wrap:wrap}
.scale-option{display:grid;place-items:center;gap:5px}
.public-nav{display:flex;justify-content:flex-end;gap:10px;padding:20px 28px;border-top:1px solid var(--border)}
.progress-wrap{height:26px;background:#edf4f9;position:relative}
.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary),#5da7dd);width:0;transition:.25s}
.progress-wrap span{position:absolute;inset:0;display:grid;place-items:center;font-size:.74rem;font-weight:800;color:#17324d}
.status-panel,.thank-you{padding:32px;text-align:center}
.success-icon{width:78px;height:78px;border-radius:50%;display:grid;place-items:center;background:#eaf8f2;color:var(--success);font-size:2.4rem;font-weight:900;margin:0 auto 18px}
.invalid{border-color:var(--danger)!important;box-shadow:0 0 0 3px rgba(192,57,43,.10)!important}
@media(max-width:1100px){
  .builder-layout{grid-template-columns:200px 1fr}
  .builder-settings{grid-column:1/-1;position:static}
  .forms-grid{grid-template-columns:repeat(2,1fr)}
  .analysis-grid{grid-template-columns:1fr}
}
@media(max-width:850px){
  .auth-shell{grid-template-columns:1fr;padding:24px}
  .brand-panel{display:none}
  .app-layout{display:block}
  .sidebar{position:static;height:auto;padding:12px}
  .sidebar-brand,.sidebar-footer{display:none}
  .side-nav{display:flex;overflow:auto}
  .nav-item{white-space:nowrap}
  .main{padding:0 14px 30px}
  .topbar{min-height:92px}
  .stats-grid,.stats-grid.mini{grid-template-columns:repeat(2,1fr)}
  .dashboard-grid,.builder-layout,.bank-layout{grid-template-columns:1fr}
  .toolbox,.builder-settings{position:static}
  .forms-grid{grid-template-columns:1fr}
  .template-grid{grid-template-columns:1fr}
  .builder-toolbar{display:grid}
}
@media(max-width:560px){
  .form-grid.two{grid-template-columns:1fr}
  .stats-grid,.stats-grid.mini{grid-template-columns:1fr}
  .question-top,.filter-row{grid-template-columns:1fr}
  .bar-row{grid-template-columns:86px 1fr 38px}
  .topbar{align-items:flex-start;padding-top:20px}
  .top-actions{display:none}
  .public-header,.public-section,.public-nav{padding-left:18px;padding-right:18px}
}
@media print{
  .sidebar,.topbar,.inline-actions,.builder-toolbar,.toolbox,.builder-settings,.toast{display:none!important}
  .app-layout{display:block}
  .main{padding:0}
  .view{display:none!important}
  #view-responses{display:block!important}
  .panel{box-shadow:none;border:0}
}


.link-button{
  border:0;
  background:transparent;
  color:var(--primary);
  font-weight:850;
  text-align:center;
  cursor:pointer;
  padding:10px 8px;
  border-radius:10px;
}
.link-button:hover{
  background:#edf4fa;
}
.back-professor-link{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  text-decoration:none;
  margin-top:10px;
}
.sidebar-footer{
  padding-bottom:10px;
}
.sidebar-footer .btn{
  min-height:42px;
}


#loadOnlineBtn, #migrateOnlineBtn{
  white-space: nowrap;
}
@media(max-width: 900px){
  .inline-actions{
    align-items: stretch;
  }
  #loadOnlineBtn, #migrateOnlineBtn{
    width: 100%;
  }
}