/* Shared SETI styling for authentication, learner pages, and administration. */
:root{
  --brand:#0045ac;
  --brand-button:#0545ac;
  --ink:#000;
  --muted:#555;
  --page:#f5f5f5;
  --surface:#fff;
  --border:#e5e5e5;
  --tint:#eef3fc;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);background:var(--page);font-size:16px;line-height:1.6;
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh}
a{color:var(--brand-button);text-decoration:none}
a:hover{text-decoration:underline}
header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;padding:20px max(5vw,20px);background:var(--surface);border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:16px;font-size:19px;font-weight:750;color:var(--brand);overflow-wrap:anywhere}
.brand-logo{display:block;width:88px;height:auto;flex-shrink:0}
nav{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
nav span{font-size:14px;color:var(--muted)}
nav form{margin:0}
main{max-width:1120px;margin:0 auto;padding:36px 24px 64px}
h1{font-size:clamp(28px,4vw,36px);line-height:1.2;letter-spacing:-.5px;font-weight:750;margin:16px 0 24px;overflow-wrap:anywhere}
h2{font-size:24px;letter-spacing:-.5px}
h3{font-size:20px;line-height:1.3}
.hero{padding:40px 0 54px;max-width:720px}
.hero p:last-child{font-size:19px;color:var(--muted);max-width:610px}
.eyebrow{font-size:12px;letter-spacing:2px;font-weight:750;color:var(--brand);margin-top:24px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,310px),1fr));gap:24px}
.card{min-width:0;padding:28px;background:var(--surface);border:1px solid var(--border);border-top:4px solid var(--brand);border-radius:8px;margin-bottom:20px;box-shadow:0 10px 32px #00000008}
.muted,.hint{color:var(--muted)}
.hint{font-size:13px;margin-top:-7px}
.badge{display:inline-block;background:var(--tint);color:var(--brand);padding:5px 12px;border-radius:20px;font-size:12px;font-weight:650}
.button,button{display:inline-block;background:var(--surface);color:var(--brand-button);padding:12px 20px;border:1px solid var(--brand-button);border-radius:4px;font:inherit;font-weight:650;cursor:pointer}
.button:hover,button:hover{background:var(--brand-button);color:var(--surface);border-color:var(--brand-button);text-decoration:none}
.button:focus-visible,button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.secondary{padding:7px 12px;color:var(--muted);background:var(--surface);border-color:var(--border)}
.danger{background:var(--surface);color:#a62c32;border-color:#e5c8ca}
.danger:hover{background:#a62c32;color:var(--surface);border-color:#a62c32}
label{display:block;font-size:14px;font-weight:650;margin:16px 0}
input:not([type=radio]):not([type=checkbox]),textarea,select{display:block;width:100%;padding:12px;border:1px solid var(--border);border-radius:4px;font:inherit;color:var(--ink);background:var(--surface);margin-top:6px}
textarea{min-height:90px;resize:vertical}
input:focus,textarea:focus,select:focus{outline:2px solid var(--brand);outline-offset:2px;border-color:var(--brand)}
input[type=checkbox],input[type=radio]{accent-color:var(--brand)}
fieldset{min-width:0;border:1px solid var(--border);border-radius:4px;padding:16px;margin:20px 0}
legend{padding:0 8px}
.auth{max-width:460px;margin:0 auto;padding:32px 36px}
.auth-logo{display:block;width:190px;max-width:70%;height:auto;margin:0 auto 28px}
.auth h1{font-size:30px;text-align:center;margin:0 0 12px}
.auth>p{text-align:center;margin:0 0 28px}
.auth button{width:100%;margin-top:12px}
.notice{padding:15px 20px;border-radius:8px;background:var(--tint);color:var(--brand);margin-bottom:24px}
.notice.error{background:#fff0ec;color:#923a28}
.question{margin:26px 0}
.question legend{font-size:20px;font-weight:700;max-width:100%;overflow-wrap:anywhere}
.choice{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--page);border-radius:4px}
.choice input{width:18px;height:18px;flex-shrink:0}
.result{text-align:center;max-width:760px;margin:30px auto}
.score{font-size:74px;font-weight:800;color:var(--brand);line-height:1;margin:36px 0}
.section-title{margin-top:52px}
.table-wrap{overflow:auto}
table{border-collapse:collapse;width:100%;text-align:left}
th,td{padding:14px 12px;border-bottom:1px solid var(--border);font-size:14px}
th{color:var(--muted);font-size:12px}
.topic-row{padding:15px 0;border-bottom:1px solid var(--border)}
.topic-row a{font-size:20px;font-weight:650}
.topic-row p{margin:6px 0}
summary{cursor:pointer;font-weight:650;overflow-wrap:anywhere}
.delete-form{margin-top:16px}
.membership-form{min-width:220px}
.membership-label{margin-top:0}
.membership-form button{padding:7px 12px}
pre{max-width:100%;overflow-x:auto}
.participant-list{list-style:none;padding:0;margin:20px 0 0}
.participant-list li{display:flex;align-items:center;gap:12px;padding:8px 0;border-bottom:1px solid var(--border)}
.participant-list li:last-child{border-bottom:0}
.participant-list a{font-weight:500;font-size:14px;overflow-wrap:anywhere}
.user-editor{max-width:640px}
.participant-selection{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:400}
.participant-list input[type=checkbox],.participant-selection input[type=checkbox]{width:18px;height:18px;flex-shrink:0}
@media(max-width:640px){
  header{align-items:flex-start;flex-direction:column;gap:16px}
  .brand{font-size:18px;gap:12px}
  .brand-logo{width:76px}
  nav{gap:14px;font-size:14px}
  nav span{display:none}
  main{padding:24px 16px 40px}
  .card{padding:20px}
  .auth{padding:28px 24px}
  .auth-logo{width:170px}
  .hero{padding:20px 0 30px}
}

.certificate-delete-form{display:inline-block;margin:0 0 0 8px;vertical-align:middle}
.certificate-trash{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;padding:6px}
.certificate-bulk-delete svg{vertical-align:middle;margin-right:4px}
.certificate-trash:disabled,.certificate-bulk-delete:disabled{opacity:.45;cursor:default}