:root{--blue:#005ab8;--blue2:#00468f;--bg:#f3f5f8;--fg:#1d2733;--mut:#5b6775;--line:#dde2e8;--ok:#1d7a3a;--warn:#a66300;--err:#b3261e}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--fg);min-height:100vh;display:flex;flex-direction:column}
main{flex:1;padding:28px 16px}.wrap{max-width:1180px;margin:0 auto;width:100%}
.top{background:var(--blue);color:#fff}.top .wrap{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;flex-wrap:wrap;gap:8px}
.brand{color:#fff;text-decoration:none;font-weight:600;font-size:18px}.logo{background:#fff;color:var(--blue);border-radius:4px;padding:2px 6px;margin-right:6px;font-weight:800}
.nav a,.nav .link{color:#fff;margin-left:16px;text-decoration:none}.nav .link{font-size:15px}
.foot{color:var(--mut);font-size:13px;padding:16px}
body.center main{display:flex;align-items:center;justify-content:center}
.card{background:#fff;border-radius:10px;box-shadow:0 1px 3px rgba(0,0,0,.08);padding:24px;margin-bottom:20px}.narrow{max-width:440px;width:100%;margin-left:auto;margin-right:auto}
h1{margin:0 0 8px;font-size:26px}h2{margin:0 0 12px;font-size:19px}.muted{color:var(--mut)}.small{font-size:13px}.hint{font-size:13px;color:var(--mut);margin:-6px 0 12px}
label{display:block;margin:0 0 14px;font-weight:500}input[type=text],input[type=email],input[type=password]{display:block;width:100%;margin-top:5px;padding:10px 12px;border:1px solid var(--line);border-radius:6px;font-size:16px}
input:focus{outline:2px solid var(--blue);border-color:var(--blue)}input.big{font-size:20px;padding:14px;text-align:center;margin:16px 0}
fieldset{border:1px solid var(--line);border-radius:6px;margin:0 0 14px;padding:10px 14px}legend{font-weight:500;padding:0 4px}
label.radio,label.check{font-weight:400;display:flex;gap:8px;align-items:center;margin:6px 0}label.check{margin:16px 0}.cond{display:none}
.btn{display:inline-block;border:1px solid var(--line);background:#fff;color:var(--fg);padding:10px 18px;border-radius:6px;font-size:15px;cursor:pointer;text-decoration:none}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.primary:hover{background:var(--blue2)}.btn.full{width:100%}
.link{background:none;border:0;color:var(--blue);cursor:pointer;padding:0;font-size:13px}.link.danger{color:var(--err)}form.inline{display:inline}
.alert{border-radius:6px;padding:10px 14px;margin:0 0 16px}.alert ul{margin:0;padding-left:18px}.alert.err{background:#fdecea;color:var(--err)}.alert.ok{background:#e7f5ec;color:var(--ok)}.alert.warn{background:#fff4e0;color:var(--warn)}
.tiles{display:flex;gap:20px;flex-wrap:wrap;margin-top:20px}.tile{width:180px;height:170px;background:#fff;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.08);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--blue);text-decoration:none;font-weight:600;font-size:17px;transition:transform .1s}
.tile:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.12)}.tile svg{width:64px;height:64px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media(max-width:860px){.grid2{grid-template-columns:1fr}}
.scroll{overflow-x:auto}.tbl{width:100%;border-collapse:collapse;font-size:14px}.tbl th,.tbl td{text-align:left;padding:8px;border-bottom:1px solid var(--line);vertical-align:top}.tbl th{background:#f7f9fb;font-weight:600;white-space:nowrap}
.tbl.small{font-size:13px}.actions form{display:inline;margin-right:8px}.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;background:#eef1f4;color:var(--mut);white-space:nowrap}.badge.ok{background:#e7f5ec;color:var(--ok)}.badge.warn{background:#fff4e0;color:var(--warn)}
.mt{margin-top:14px}
.nav a{padding:6px 12px;border-radius:6px;margin-left:8px;opacity:.85}.nav a:hover{opacity:1;background:rgba(255,255,255,.12)}
.nav a.active{opacity:1;background:#fff;color:var(--blue);font-weight:600}
.hint.below{margin:12px 0 0}
.pwrow{display:flex;gap:8px;margin-top:5px}.pwrow input{margin-top:0;flex:1}.pwrow .btn{white-space:nowrap}
details summary{cursor:pointer;color:var(--blue)}
code.kw{background:#eef4fb;color:var(--blue);padding:2px 6px;border-radius:4px;font-size:14px;user-select:all}
/* ---- Mobil (Teilnehmerseiten) ---- */
input[type=radio],input[type=checkbox]{width:20px;height:20px;flex:0 0 20px;accent-color:var(--blue)}
.form-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
@media(max-width:600px){
 main{padding:16px 12px}
 body.center main{align-items:flex-start;padding-top:28px}
 .top .wrap{padding:10px 12px}.brand{font-size:17px}
 .card{padding:18px 16px;border-radius:8px;margin-bottom:14px}
 h1{font-size:22px}
 input[type=text],input[type=email],input[type=password]{padding:13px 12px;font-size:16px}
 label.radio,label.check{padding:8px 0;margin:2px 0;line-height:1.35}
 label.check{align-items:flex-start}
 fieldset{padding:6px 12px}
 .btn{padding:14px 18px;font-size:16px}
 .form-actions{flex-direction:column-reverse}.form-actions .btn{width:100%;text-align:center}
 .tiles{justify-content:stretch}.tile{width:100%;height:140px}
 .foot{text-align:center}
}