:root{
  --navy:#153a72;--navy-2:#0d2750;--blue:#2b68bc;--sky:#eaf2ff;--green:#23965a;--green-soft:#e6f7ee;
  --red:#c84242;--red-soft:#fff0f0;--orange:#c56a16;--ink:#162238;--muted:#6d7788;--line:#dfe5ee;--bg:#f4f7fb;--card:#fff;
  --shadow:0 14px 38px rgba(22,34,56,.09);--radius:18px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}
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#d5dce7;border-radius:14px;cursor:pointer;transition:.15s;background:#fff}.answer-option:hover{border-color:#9ab5da;background:#f8fbff}.answer-option:has(input:checked){border-color:var(--blue);background:var(--sky);box-shadow:0 0 0 2px rgba(43,104,188,.08)}.answer-option input{width:19px;height:19px;flex:0 0 auto}.answer-letter{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:#edf2f8;color:var(--navy);font-weight:850}.confidence{margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}.confidence>strong{display:block;margin-bottom:12px}.confidence-options{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.confidence-options label{cursor:pointer}.confidence-options input{position:absolute;opacity:0;pointer-events:none}.confidence-options span{display:flex;flex-direction:column;align-items:center;padding:10px 5px;border:1px solid var(--line);border-radius:11px;color:var(--muted);font-size:11px;text-align:center}.confidence-options 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summary{cursor:pointer;color:var(--blue);font-weight:700}.stat-table{display:grid}.stat-row{display:grid;grid-template-columns:2fr .8fr .8fr 1.4fr .5fr;gap:18px;align-items:center;padding:14px 10px;border-bottom:1px solid #e7ebf1}.stat-row.header{color:var(--muted);font-size:12px;font-weight:800;text-transform:uppercase}.stat-row>span:has(.bar){display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px}.bar{min-width:90px}.day-chart{min-height:220px;display:flex;align-items:flex-end;gap:14px;overflow-x:auto;padding:20px 5px 5px}.day-column{min-width:56px;display:flex;flex-direction:column;align-items:center;gap:5px}.day-bar{width:38px;min-height:10px;border-radius:9px 9px 4px 4px;background:linear-gradient(var(--blue),var(--navy));color:#fff;display:flex;align-items:flex-start;justify-content:center;padding-top:5px;font-size:11px;font-weight:800}.day-column b{font-size:12px;color:var(--green)}.day-column small{color:var(--muted)}.admin-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:20px}.stack-panels .panel:first-child{margin-top:0}.muted{color:var(--muted);font-size:14px}.admin-list{display:grid;gap:10px}.admin-list article{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:13px}.admin-list article div{display:grid;gap:4px}.admin-list span{font-size:12px;color:var(--muted)}.admin-list strong{font-size:15px}code{background:#edf2f8;padding:2px 6px;border-radius:6px}.install-hint{font-size:13px}
@media(max-width:900px){.topbar{flex-wrap:wrap;gap:8px;padding:9px 16px}.topbar nav{order:3;width:100%;overflow-x:auto}.topbar nav a{white-space:nowrap}.user{margin-left:auto}.container{padding:22px 16px 60px}.metric-grid{grid-template-columns:repeat(2,1fr)}.hero{padding:30px;align-items:flex-start;flex-direction:column}.category-grid,.split,.admin-grid{grid-template-columns:1fr}.stat-row{grid-template-columns:1.5fr .7fr .7fr 1fr .4fr;font-size:13px}.form-grid{grid-template-columns:1fr 1fr}.confidence-options{grid-template-columns:repeat(5,minmax(60px,1fr));overflow-x:auto}.question-card{padding:24px}}
@media(max-width:600px){.topbar{position:static}.brand{font-size:17px}.brand img{width:34px}.user{font-size:0}.user:after{content:"Abmelden";font-size:12px}.container{padding:16px 12px 50px}.metric-grid{grid-template-columns:1fr 1fr;gap:10px}.metric{padding:16px}.metric strong{font-size:25px}.hero{padding:25px 21px;border-radius:19px}.hero h1{font-size:33px}.panel{padding:19px}.category-grid{grid-template-columns:1fr}.page-head,.study-top,.panel-head{flex-direction:column}.study-top form,.study-top select{width:100%}.question-card{padding:20px 16px;border-radius:17px}.question-card h1{font-size:25px}.question-meta,.question-footer{flex-direction:column;gap:4px}.confidence-options{grid-template-columns:repeat(5,74px)}.confidence-options span{min-height:64px}.next-actions{flex-direction:column}.next-actions .button{width:100%}.form-grid{grid-template-columns:1fr}.stat-table{overflow-x:auto}.stat-row{min-width:690px}.admin-list article{align-items:flex-start;flex-direction:column}.review-card{padding:17px}.card-actions{align-items:flex-start;flex-direction:column}.card-actions details{width:100%}.auth-card{padding:25px 20px;margin-top:5vh}.auth-card h1{font-size:31px}}
.split.three{grid-template-columns:repeat(3,1fr)}.form-grid.two{grid-template-columns:1fr 1fr}.exam-start{max-width:760px;margin:auto}.exam-rules{padding:18px;background:#f5f8fc;border-radius:13px}.exam-rules ul{margin:8px 0 0;padding-left:20px;color:#536078}.exam-toolbar{max-width:900px;margin:0 auto 15px;display:flex;justify-content:space-between;align-items:center;gap:22px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 18px}.exam-toolbar>div:first-child{flex:1}.exam-toolbar .progress{margin-top:7px}.exam-clock{font-size:23px;font-weight:850;color:var(--navy);font-variant-numeric:tabular-nums}.exam-clock.urgent{color:var(--red)}.exam-result-head{display:flex;align-items:center;gap:28px;padding:30px;border-radius:22px;margin-bottom:20px}.exam-result-head.passed{background:var(--green-soft)}.exam-result-head.needs-work{background:#fff1e4}.exam-result-head h1{font-size:34px;margin:5px 0}.exam-score{width:150px;height:150px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#fff;box-shadow:var(--shadow);flex:0 0 auto}.exam-score strong{font-size:39px;color:var(--navy)}.exam-score span{font-size:12px;color:var(--muted)}.exam-categories{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
@media(max-width:900px){.split.three{grid-template-columns:1fr}.exam-result-head{align-items:flex-start}.exam-score{width:120px;height:120px}}
@media(max-width:600px){.form-grid.two{grid-template-columns:1fr}.exam-result-head{flex-direction:column}.exam-toolbar{position:sticky;top:5px;z-index:10}.exam-score{width:110px;height:110px}.exam-result-head h1{font-size:28px}}
.admin-actions{display:flex!important;grid-auto-flow:column;align-items:center;gap:8px!important}.admin-actions form{margin:0}.current-image{display:flex;align-items:center;gap:18px;padding:14px;border:1px solid var(--line);border-radius:13px}.current-image img{width:180px;max-height:130px;object-fit:contain;border-radius:10px}.current-image label{display:flex;flex-direction:row;align-items:center}.current-image input{width:auto}
@media(max-width:600px){.admin-actions{width:100%;flex-wrap:wrap}.current-image{align-items:flex-start;flex-direction:column}.current-image img{width:100%}}
.exam-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:0 0 20px}.exam-facts article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 6px 18px rgba(22,34,56,.04)}.exam-facts span,.exam-facts small{display:block;color:var(--muted);font-size:12px}.exam-facts strong{display:block;margin:4px 0 6px;color:var(--navy);font-size:18px}.readiness{align-self:flex-start;padding:7px 11px;border-radius:999px;font-size:12px;font-weight:850}.readiness.ready{background:var(--green-soft);color:#157044}.readiness.not-ready{background:#fff0d8;color:#9a5b08}.exam-blueprint{display:grid;gap:10px;margin:18px 0}.blueprint-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:15px 16px;border:1px solid var(--line);border-radius:13px;background:#fff}.blueprint-row>div:first-child{display:grid;gap:4px}.blueprint-row small{color:var(--muted)}.blueprint-row>div:last-child{text-align:right;min-width:92px}.blueprint-row b,.blueprint-row span{display:block}.blueprint-row.complete{border-left:4px solid var(--green)}.blueprint-row.incomplete{border-left:4px solid #df9a27}.exam-start-action{display:flex;align-items:center;gap:14px;margin-top:18px}.exam-start-action small{color:var(--muted)}.zero-selection{display:flex;align-items:center;gap:12px;margin-top:14px;padding:14px 15px;border:1px dashed #b7c4d6;border-radius:13px;cursor:pointer;background:#fafcff}.zero-selection:has(input:checked){border-style:solid;border-color:var(--blue);background:var(--sky)}.zero-selection input{width:19px;height:19px;flex:0 0 auto}.zero-selection span{display:grid;gap:2px}.zero-selection small{color:var(--muted)}.exam-abort{max-width:900px;margin:14px auto 0;text-align:right}.exam-toolbar small{display:block;margin-top:5px;color:var(--muted)}
@media(max-width:900px){.exam-facts{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.exam-facts{grid-template-columns:1fr}.blueprint-row{align-items:flex-start}.exam-start-action{align-items:stretch;flex-direction:column}.exam-start-action .button{width:100%}.exam-abort{text-align:stretch}.exam-abort .button{width:100%}}

/* Version 4: zweistufige Lernhilfen, Quellenprüfung und grafische Aufstellungen */
.position-image{width:min(100%,760px);max-height:520px;background:#fff;padding:8px}
.review-row>div{display:grid;gap:3px;min-width:0}.review-row>div>strong{font-weight:720;color:inherit}.review-row>div>small{font-size:12px;line-height:1.42;color:inherit;opacity:.82}
.review-row.is-missed{background:#fff5df;color:#88540b}.review-row.is-neutral{color:#6d7788}.compact-review{margin:16px 0}
.quick-explanation{margin-top:22px;padding:19px 20px;border-left:4px solid var(--green);border-radius:12px;background:#eef9f3}.quick-explanation>span{display:block;margin-bottom:5px;color:#157044;font-size:12px;font-weight:850;text-transform:uppercase;letter-spacing:.07em}.quick-explanation p{margin:0;color:#173b2a;font-weight:650}
.deep-explanation{margin-top:12px;border:1px solid #ced9e7;border-radius:12px;background:#f8fafd;overflow:hidden}.deep-explanation summary{padding:14px 17px;cursor:pointer;color:var(--navy);font-weight:800;list-style:none}.deep-explanation summary::-webkit-details-marker{display:none}.deep-explanation summary:after{content:"＋";float:right;font-size:18px}.deep-explanation[open] summary{border-bottom:1px solid #dce4ef}.deep-explanation[open] summary:after{content:"−"}.deep-explanation>div{padding:16px 18px}.deep-explanation p{margin:0;color:#2f3b50}
.learning-hints{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px}.hint{padding:15px 17px;border-radius:12px;border:1px solid var(--line)}.hint strong{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.06em}.hint p{margin:5px 0 0;color:var(--ink)}.hint.mnemonic{background:#eef5ff;border-color:#cee0f8}.hint.mnemonic strong{color:var(--blue)}.hint.trap{background:#fff6e5;border-color:#eed59d}.hint.trap strong{color:#995d0b}
.source-proof{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:13px;padding:12px 14px;border:1px dashed #cbd5e2;border-radius:11px;background:#fbfcfe}.source-proof small{color:#5e6b80}.verified-badge{display:inline-flex;align-items:center;padding:5px 9px;border-radius:999px;background:var(--green-soft);color:#157044;font-size:11px;font-weight:800}
.exam-review-card{overflow:hidden}.exam-review-card .question-image{margin-top:14px}
.content-status{display:flex;align-items:center;justify-content:space-between;gap:28px;border-left:5px solid var(--green)}.content-status h2{margin:5px 0}.content-status p{margin-bottom:0;max-width:760px}.content-status form{flex:0 0 auto}
.admin-grid .stack textarea[name="detailed_explanation"]{min-height:160px}
@media(max-width:760px){.learning-hints{grid-template-columns:1fr}.content-status{align-items:flex-start;flex-direction:column}.content-status form,.content-status .button{width:100%}.source-proof{align-items:flex-start;flex-direction:column}}