/* Prüfungsvorbereitung + vereinheitlichtes Lektionslayout.
   Nutzt ausschliesslich die Tokens aus index.html (--ink, --paper*, --rule*, --accent, --good, --gold, --focus),
   damit Hell/Dunkel automatisch funktioniert. */

:root{ --info:#2f5d9e; --info-soft:#e3ebf7; }
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){ --info:#8fb3ea; --info-soft:#1f2a3c; } }
:root[data-theme="dark"]{ --info:#8fb3ea; --info-soft:#1f2a3c; }

/* ---------- Kennzeichnungen ---------- */
.tag{display:inline-flex; align-items:center; gap:4px; font-family:'IBM Plex Mono',monospace; font-size:10.5px; font-weight:600;
  letter-spacing:.04em; text-transform:uppercase; padding:1px 7px; border-radius:3px; border:1px solid var(--rule-strong);
  color:var(--ink-soft); background:transparent; white-space:nowrap; vertical-align:middle; line-height:1.6;}
.tag + .tag{margin-left:4px;}
.tag-pruefung{color:var(--accent); border-color:color-mix(in srgb, var(--accent) 45%, transparent);}
.tag-prio{color:var(--gold); border-color:color-mix(in srgb, var(--gold) 50%, transparent); background:var(--gold-soft);}
.tag-wiederholen{color:var(--info); border-color:color-mix(in srgb, var(--info) 45%, transparent);}
.tag-zusatz{color:var(--ink-faint);}
.tag-original{color:var(--good); border-color:color-mix(in srgb, var(--good) 45%, transparent);}
.tag-heft, .tag-eigen, .tag-generiert{color:var(--ink-faint);}

/* ---------- Sidebar-Eintrag ---------- */
.nav-item.exam-nav-item{background:rgba(255,255,255,0.08); opacity:1; font-weight:600;}
.nav-item.exam-nav-item.active{background:var(--accent); color:var(--accent-ink);}
.nav-item .nav-badge{margin-left:auto; white-space:nowrap; flex:0 0 auto; font-family:'IBM Plex Mono',monospace; font-size:10.5px; background:var(--accent); color:var(--accent-ink); border-radius:10px; padding:0 6px;}
.nav-item.active .nav-badge{background:var(--accent-ink); color:var(--accent);}
.nav-sep{height:1px; background:rgba(255,255,255,0.14); margin:8px 4px;}

/* ---------- Unternavigation ---------- */
.subnav{display:flex; gap:0; flex-wrap:nowrap; overflow-x:auto; -webkit-overflow-scrolling:touch; scrollbar-width:thin; border-bottom:1px solid var(--rule-strong); margin:4px 0 22px 0;}
.subnav-item{padding:8px 9px; font-size:13px; color:var(--ink-soft); text-decoration:none; border-bottom:2px solid transparent; margin-bottom:-1px; white-space:nowrap;}
.subnav-item:hover{color:var(--ink);}
.subnav-item.active{color:var(--ink); border-bottom-color:var(--accent); font-weight:600;}

/* ---------- Prüfungstermine / nächste Aktion ---------- */
.exam-cards{display:grid; grid-template-columns:1fr 1fr; gap:12px; margin:8px 0 16px 0;}
@media (max-width:640px){ .exam-cards{grid-template-columns:1fr;} }
.exam-card{background:var(--paper-raised); border:1px solid var(--rule); border-radius:6px; padding:14px 16px;}
.exam-card.next{border-color:var(--accent); box-shadow:var(--shadow);}
.exam-card.past{opacity:.6;}
.ec-date{display:flex; justify-content:space-between; align-items:baseline; font-size:13px; color:var(--ink-soft); margin-bottom:4px;}
.ec-date b{color:var(--accent); font-size:14px;}
.ec-title{font-family:'Newsreader',serif; font-weight:600; font-size:17px; line-height:1.25;}
.ec-topic{font-size:12.5px; color:var(--ink-soft); margin-top:4px;}
.next-action{display:flex; gap:16px; align-items:center; justify-content:space-between; background:var(--paper-raised);
  border:1px solid var(--rule-strong); border-left:4px solid var(--accent); border-radius:6px; padding:14px 18px; margin:6px 0 12px 0;}
.na-label{font-family:'Newsreader',serif; font-size:19px; font-weight:600; line-height:1.25;}
.na-why{font-size:13px; color:var(--ink-soft); margin-top:2px;}
@media (max-width:640px){ .next-action{flex-direction:column; align-items:flex-start;} }

/* ---------- Lernstand ---------- */
.area-list{display:flex; flex-direction:column; gap:2px; border-top:1px solid var(--rule);}
.area-row{display:grid; grid-template-columns:minmax(0,1.6fr) minmax(80px,1fr) auto; grid-template-rows:auto auto; column-gap:12px; align-items:center;
  padding:9px 4px; border-bottom:1px solid var(--rule); text-decoration:none; color:inherit;}
.area-row:hover{background:var(--paper-raised);}
.ar-label{font-size:14px;}
.ar-num{font-size:12.5px; color:var(--ink-soft); text-align:right;}
.ar-sub{grid-column:1 / -1; font-size:11.5px; color:var(--ink-faint);}
.xbar{display:flex; height:7px; background:var(--paper-sunken); border-radius:4px; overflow:hidden; min-width:60px; flex:1;}
.xbar i{display:block; height:100%;}
.xbar i.good{background:var(--good);}
.xbar i.seen{background:color-mix(in srgb, var(--good) 30%, transparent);}
.xbar i.fill{background:var(--accent);}
.inline-details{display:inline;}
.inline-details summary{display:inline; cursor:pointer; color:var(--info); text-decoration:underline dotted;}
.inline-details[open]{display:block; margin-top:6px; background:var(--paper-raised); border:1px solid var(--rule); border-radius:5px; padding:8px 10px; color:var(--ink);}
.weak-list{margin:6px 0 10px 18px; padding:0; font-size:13.5px;}
.pt-hist{display:flex; flex-direction:column; gap:6px; margin:6px 0 10px 0;}
.pt-row{display:grid; grid-template-columns:auto minmax(60px,1fr) auto auto; gap:10px; align-items:center; font-size:12.5px;}
.settings-row{display:flex; flex-wrap:wrap; gap:14px; align-items:center; margin-top:24px; padding-top:14px; border-top:1px solid var(--rule); font-size:13px;}
.chk{display:inline-flex; gap:7px; align-items:center; font-size:13px; color:var(--ink-soft); cursor:pointer; margin:8px 0;}
.scope-toggle{display:inline-flex; border:1px solid var(--rule-strong); border-radius:20px; overflow:hidden;}
.seg{background:var(--paper-raised); border:none; padding:6px 12px; font-size:12.5px; color:var(--ink-soft); cursor:pointer; font-family:inherit;}
.seg.active{background:var(--ink); color:var(--paper);}

/* ---------- Konfiguration ---------- */
.cfg-sub{font-size:12px; color:var(--ink-soft); margin-top:8px;}
.cfg-inline{display:flex; gap:8px; align-items:center; flex-wrap:wrap; margin-top:12px; font-size:12.5px; color:var(--ink-soft);}
.cfg-inline select{font-family:inherit; font-size:12.5px; background:var(--paper-raised); color:var(--ink); border:1px solid var(--rule-strong); border-radius:4px; padding:2px 6px;}
.chip-btn.small{font-size:11.5px; padding:4px 9px;}
.chip-btn.ghost{border-style:dashed;}
.chip-btn .mono{opacity:.7; font-size:10.5px;}
a.chip-btn{text-decoration:none; display:inline-flex; gap:6px; align-items:center;}
.big-btn{padding:13px 22px; font-size:15px; margin:4px 0 14px 0;}
.btn.small{padding:6px 12px; font-size:12.5px;}
.btn-row{display:flex; gap:10px; flex-wrap:wrap; align-items:center;}
a.btn{text-decoration:none; display:inline-block;}

/* ---------- Aufgaben-Runner ---------- */
.runner{background:var(--paper-raised); border:1px solid var(--rule-strong); border-radius:8px; padding:20px 22px; box-shadow:var(--shadow); margin:10px 0 16px 0; position:relative; overflow:hidden;}
.runner::before{content:""; position:absolute; left:0; top:0; bottom:0; width:4px; background:var(--accent);}
.runner-top{display:flex; align-items:center; gap:12px; font-size:12.5px; color:var(--ink-soft); margin-bottom:12px;}
.quiz-prompt .fr-word, .quiz-prompt .de-word{font-family:'Newsreader',serif; font-size:21px; font-weight:600;}
.quiz-prompt .gap{font-family:'IBM Plex Mono',monospace; color:var(--accent);}
.quiz-prompt .tf-given{font-family:'IBM Plex Mono',monospace; font-weight:600;}
.quiz-prompt .tf-change{color:var(--ink-soft); font-size:15px; margin-left:8px;}
.quiz-input-row{flex-wrap:wrap; align-items:center;}
.quiz-input-row .affix{font-family:'IBM Plex Mono',monospace; font-size:15px; color:var(--ink-soft);}
.kbd-wrap{flex:1; min-width:180px; display:flex; flex-direction:column; gap:6px;}
.quiz-input.big{width:100%; font-size:15.5px; line-height:1.5; resize:vertical; min-height:70px;}
.row-actions{display:flex; justify-content:flex-end; margin-top:8px;}
.accent-bar{display:flex; flex-wrap:wrap; gap:4px;}
.accent-bar .ak{font-family:'IBM Plex Mono',monospace; font-size:14px; min-width:30px; height:30px; border-radius:4px; border:1px solid var(--rule-strong);
  background:var(--paper); color:var(--ink); cursor:pointer; padding:0 6px;}
.accent-bar .ak:hover{border-color:var(--ink-soft);}
.accent-bar .ak:active{background:var(--paper-sunken);}
.feedback.partial{display:block; background:var(--gold-soft); color:var(--gold);}
.feedback .explain.manual{color:var(--gold); font-weight:500;}
.conf{display:flex; gap:7px; align-items:center; flex-wrap:wrap; margin-top:10px; font-size:12.5px;}
.conf .chip-btn.active{background:var(--ink); color:var(--paper);}
.small{font-size:12px;}
.vex{font-size:12.5px; color:var(--ink); opacity:.8; margin-top:6px;}
.units{display:flex; flex-direction:column; gap:3px; margin:8px 0; font-size:13px;}
.unit{display:grid; grid-template-columns:18px minmax(0,1fr) auto; column-gap:8px; align-items:baseline; color:var(--ink);}
.unit .u-mark{font-weight:700;}
.unit.ok .u-mark{color:var(--good);}
.unit.bad .u-mark{color:var(--accent);}
.unit .u-msg{grid-column:2 / -1; font-size:12.5px; color:var(--ink-soft);}
.unit .u-pts{font-size:11.5px; color:var(--ink-faint);}
.review-item.half .ri-num{background:var(--gold-soft); color:var(--gold);}
.review-item.flagged .ri-num{outline:2px solid var(--gold);}
.ri-explain.manual{color:var(--gold);}
.grade-box{display:flex; flex-direction:column; align-items:flex-end;}
.grade-box .big{font-family:'Newsreader',serif; font-size:34px; font-weight:600; line-height:1;}
.status-chips{display:flex; gap:6px; flex-wrap:wrap; margin:10px 0 14px 0;}
.chip.st-richtig, .chip.st-beherrscht{background:var(--good-soft); color:var(--good);}
.chip.st-artikel, .chip.st-akzent, .chip.st-tippfehler, .chip.st-praeposition, .chip.st-unsicher, .chip.st-teilweise{background:var(--gold-soft); color:var(--gold);}
.chip.st-falsch, .chip.st-leer{background:var(--accent-soft); color:var(--accent);}
.chip.st-geübt{background:var(--info-soft); color:var(--info);}
.rule-box, .wordlist, .reset-box{margin-top:16px; border:1px solid var(--rule); border-radius:6px; padding:10px 14px; background:var(--paper-raised); font-size:13.5px;}
.rule-box summary, .wordlist summary, .reset-box summary{cursor:pointer; font-weight:600;}
.wordtable td.fr{font-family:'Newsreader',serif; font-size:15px; font-weight:600;}
.wt-ex{display:block; font-family:'Public Sans',sans-serif; font-weight:400; font-size:12px; color:var(--ink-faint);}
.wordlist .searchbox{width:100%; margin:10px 0;}
.sent-list{margin:8px 0 0 0; padding-left:18px; display:flex; flex-direction:column; gap:6px;}
.step-cta{margin-top:12px;}

/* ---------- Lektionen ---------- */
.lesson-grid{display:grid; grid-template-columns:1fr 1fr; gap:12px;}
@media (max-width:640px){ .lesson-grid{grid-template-columns:1fr;} }
.lesson-card{display:flex; flex-direction:column; gap:4px; background:var(--paper-raised); border:1px solid var(--rule); border-radius:6px; padding:14px 16px; text-decoration:none; color:inherit;}
.lesson-card:hover{border-color:var(--rule-strong); box-shadow:var(--shadow);}
.lesson-card h4{font-size:17px; font-weight:600;}
.lesson-card p{margin:0; font-size:13px;}
.lc-src, .lc-prog{font-size:11.5px; color:var(--ink-faint);}
.lc-tags{display:flex; gap:4px; flex-wrap:wrap; min-height:18px;}
.lesson-head .lc-tags{margin-bottom:6px;}
.src-ref{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--ink-faint);}
.stepper{list-style:none; display:flex; gap:4px; padding:0; margin:0 0 18px 0; counter-reset:none; overflow-x:auto;}
.stepper li{flex:1 1 0; min-width:84px;}
.stepper .step{display:flex; flex-direction:column; gap:2px; padding:8px 8px; border-top:3px solid var(--rule); text-decoration:none; color:var(--ink-faint); font-size:12px; height:100%;}
.stepper .step .sn{font-size:11px;}
.stepper .step.done{border-top-color:var(--good); color:var(--ink-soft);}
.stepper .step.active{border-top-color:var(--accent); color:var(--ink); font-weight:600;}
.step-nav{display:flex; justify-content:space-between; gap:10px; margin-top:20px; flex-wrap:wrap;}
.explain-30{background:var(--paper-raised); border:1px solid var(--rule); border-radius:8px; padding:20px 22px; font-size:17px; line-height:1.6;}
.explain-30 p{margin:0;}
.morph-list{display:flex; flex-direction:column; gap:8px; margin-bottom:16px;}
.morph-row{background:var(--paper-raised); border:1px solid var(--rule); border-radius:6px; padding:10px 14px; font-family:'IBM Plex Mono',monospace; font-size:15px;}
.morph-row .morph.from{color:var(--ink-soft);}
.morph .hl{color:var(--accent); background:var(--accent-soft); border-radius:3px; padding:0 2px; font-weight:600;}
.morph-row .arrow{color:var(--ink-faint); margin:0 4px;}
.morph-rule{font-family:'Public Sans',sans-serif; font-size:12.5px; color:var(--ink-soft); margin-top:4px;}
.rules{display:flex; flex-direction:column; gap:8px;}
details.rule{background:var(--paper-raised); border:1px solid var(--rule); border-radius:6px;}
details.rule > summary{cursor:pointer; padding:11px 14px; font-weight:600; font-size:14.5px; list-style:none; display:flex; justify-content:space-between; align-items:center;}
details.rule > summary::-webkit-details-marker{display:none;}
details.rule > summary::after{content:"+"; font-family:'IBM Plex Mono',monospace; color:var(--ink-faint);}
details.rule[open] > summary::after{content:"–";}
.rule-body{padding:0 14px 12px 14px; font-size:14px;}
.ex-list{margin:6px 0; padding-left:18px; font-family:'IBM Plex Mono',monospace; font-size:13px; color:var(--ink-soft);}
.ex-list b{color:var(--accent);}

/* ---------- Cahier-Kapitel im neuen Layout ---------- */
.chapter-intro{display:grid; grid-template-columns:auto minmax(0,1fr); gap:6px 14px; align-items:start; background:var(--paper-raised); border:1px solid var(--rule); border-left:4px solid var(--accent); border-radius:6px; padding:14px 16px; margin:0 0 16px 0;}
.chapter-intro .ci-label{font-family:'IBM Plex Mono',monospace; font-size:11px; text-transform:uppercase; letter-spacing:.06em; color:var(--accent); padding-top:3px;}
.chapter-intro p{margin:0; font-size:15px;}
.chapter-intro .ci-meta{grid-column:2; font-size:12px; color:var(--ink-faint);}
details.rule.cahier > .rule-body{padding-top:4px;}

/* ---------- Prüfungsmodus ---------- */
.exam-shell{position:relative;}
.exam-bar{display:flex; flex-wrap:wrap; gap:10px; align-items:center; justify-content:space-between; position:sticky; top:0; z-index:5;
  background:var(--paper); border-bottom:1px solid var(--rule-strong); padding:10px 0;}
.eb-title{flex:1; min-width:200px; font-size:14px;}
@media (max-width:860px){ .exam-bar{top:62px;} }
.exam-parts{display:grid; grid-template-columns:repeat(4,1fr); gap:6px; margin:12px 0 8px 0;}
.ep{display:flex; flex-direction:column; align-items:flex-start; gap:1px; padding:8px 10px; border:1px solid var(--rule-strong); border-radius:6px; background:var(--paper-raised); color:var(--ink-soft); cursor:pointer; font-family:inherit; font-size:13px;}
.ep.active{border-color:var(--accent); color:var(--ink); font-weight:600; box-shadow:inset 0 -3px 0 var(--accent);}
.exam-dots{display:flex; flex-wrap:wrap; gap:4px; margin-bottom:14px;}
.exam-dots .dot{font-family:'IBM Plex Mono',monospace; font-size:10.5px; min-width:34px; padding:3px 4px; border-radius:4px; border:1px solid var(--rule-strong); background:var(--paper); color:var(--ink-faint); cursor:pointer;}
.exam-dots .dot.done{background:var(--good-soft); color:var(--good); border-color:color-mix(in srgb, var(--good) 40%, transparent);}
.exam-dots .dot.flag{box-shadow:inset 0 0 0 2px var(--gold);}
.exam-dots .dot.cur{font-weight:700; color:var(--ink);}
.exam-sheet{background:var(--paper-raised); border:1px solid var(--rule-strong); border-radius:8px; padding:20px 22px;}
.es-head{display:flex; justify-content:space-between; align-items:baseline;}
.es-head h2{font-size:20px;}
.es-instr{color:var(--ink-soft); font-size:14px; margin-top:4px;}
.ex-item{display:grid; grid-template-columns:34px minmax(0,1fr) auto; gap:8px; align-items:start; padding:10px 0; border-bottom:1px dashed var(--rule);}
.ex-item:last-child{border-bottom:none;}
.ex-num{color:var(--ink-faint); font-size:12.5px; padding-top:6px;}
.ex-line{font-size:15px; line-height:2.1;}
.ex-in{font-family:'IBM Plex Mono',monospace; font-size:15px; padding:5px 8px; border:none; border-bottom:2px solid var(--rule-strong); background:var(--paper); color:var(--ink); border-radius:3px 3px 0 0; width:12em; max-width:100%;}
.ex-in:focus{outline:none; border-bottom-color:var(--focus); background:var(--paper-sunken);}
textarea.ex-in{width:100%; border:1px solid var(--rule-strong); border-radius:4px; line-height:1.5; margin-top:4px; resize:vertical;}
.ex-table td{vertical-align:middle;}
.ex-cell{white-space:nowrap;}
.ex-cell .ex-in{width:9em;}
.ex-cell .suffix{font-family:'IBM Plex Mono',monospace; color:var(--ink-soft);}
.flag-btn{background:none; border:1px solid transparent; border-radius:4px; color:var(--ink-faint); cursor:pointer; font-size:14px; padding:2px 6px;}
.flag-btn:hover{border-color:var(--rule-strong);}
.flag-btn.on{color:var(--gold); border-color:var(--gold); background:var(--gold-soft);}
.info-btn{background:none; border:none; color:var(--info); cursor:pointer; font-size:14px; padding:0 2px;}
.info-pop{margin-top:10px; background:var(--info-soft); color:var(--ink); border-left:3px solid var(--info); padding:8px 12px; font-size:13px; border-radius:0 4px 4px 0;}
.exam-nav{display:flex; justify-content:space-between; align-items:center; gap:10px; margin:14px 0; flex-wrap:wrap;}
.exam-kbd{position:sticky; bottom:0; background:var(--paper); border-top:1px solid var(--rule); padding:8px 0; z-index:4;}
.mode-card.static{cursor:default;}
.mode-card .btn{margin-top:8px;}
@media (max-width:640px){
  .exam-parts{grid-template-columns:repeat(2,1fr);}
  .ex-item{grid-template-columns:28px minmax(0,1fr) auto;}
  .ex-line{line-height:1.9;}
  /* Prüfungstabellen als Karten */
  .tablewrap:has(.ex-table){overflow:visible; border:none;}
  .ex-table, .ex-table tbody, .ex-table tr, .ex-table td{display:block; width:auto;}
  .ex-table tr:first-child{display:none;}
  .ex-table tr{position:relative; border:1px solid var(--rule); border-radius:6px; padding:8px 40px 10px 10px; margin-bottom:8px; background:var(--paper-raised);}
  .ex-table td{border:none; padding:2px 0;}
  .ex-table td:last-child{position:absolute; top:6px; right:6px;}
  .ex-cell{white-space:normal; margin-top:4px;}
  .ex-cell .ex-in{width:calc(100% - 70px);}
  .exam-sheet{padding:14px 12px;}
  .runner{padding:16px 14px;}
  .area-row{grid-template-columns:minmax(0,1fr) auto; }
  .area-row .xbar{grid-column:1 / -1; grid-row:2;}
  .area-row .ar-sub{grid-row:3;}
}
.weak-grid{display:grid; grid-template-columns:repeat(auto-fill, minmax(220px,1fr)); gap:10px;}
.weak-card{background:var(--paper-raised); border:1px solid var(--rule); border-radius:6px; padding:12px 14px; display:flex; flex-direction:column; gap:8px;}
.wc-head{display:flex; justify-content:space-between; gap:8px; align-items:flex-start; font-size:14px;}
.wc-num{font-size:12.5px; color:var(--ink-soft);}
.home-exam{background:var(--paper-raised); border:1px solid var(--accent); border-radius:8px; padding:16px 18px; margin:6px 0 22px 0; box-shadow:var(--shadow);}
.home-exam h3{font-size:19px; margin:2px 0 6px 0;}
.home-exam .he-dates{display:flex; gap:14px; flex-wrap:wrap; font-size:13px; color:var(--ink-soft); margin-bottom:10px;}
.home-exam .he-dates b{color:var(--accent);}
:focus-visible{outline:2px solid var(--focus); outline-offset:2px;}
@media (prefers-reduced-motion: no-preference){
  .feedback.show{animation:fbIn .18s ease-out;}
  @keyframes fbIn{from{opacity:0; transform:translateY(-3px);} to{opacity:1; transform:none;}}
}