/* Gemeinsames Aussehen der Werkzeug-Seiten (Karteikarten, Eltern-Modus, Diktat, Lesen, Referat, Lernplan, Kopfrechnen).
   Gleicher Stil wie app.html: Karopapier, eine Spalte in Handybreite, Textmarker-Gelb für das Wichtige. */
:root{
  --paper:#ffffff; --grid:#f3ecdf; --card:#ffffff; --ink:#1e2a24; --muted:#5c6b61;
  --pen:#1f4d3a; --pen-soft:#e2f2e9; --marker:#f2b544; --marker-ink:#3a3200;
  --line:#e2d6c0; --ok:#1d7a4a; --ok-bg:#e3f5ea; --warn:#a4400e; --warn-bg:#fff1e8;
  --display:"Nunito", "Trebuchet MS", system-ui, sans-serif;
  --body:"Nunito", "Segoe UI", system-ui, sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
img{max-width:100%}
body{margin:0;background-color:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.5;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:22px 22px}
.wrap{max-width:680px;margin:0 auto;padding-inline:16px;padding-block:28px 48px;display:flex;flex-direction:column;gap:20px}
h1,h2,h3{font-family:var(--display);text-wrap:balance;margin:0;line-height:1.15}
h1{font-size:2rem;font-weight:800;letter-spacing:-.01em}
h1 mark{background:linear-gradient(transparent 55%,var(--marker) 55%);color:inherit;padding:0 .1em}
.lead{color:var(--muted);margin:.4rem 0 0;max-width:34em}
.card{background:var(--card);border:1.5px solid var(--line);border-radius:14px;padding:18px 16px;display:flex;flex-direction:column;gap:14px}
.eyebrow{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:420px){.row{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:5px;min-width:0}
label{font-weight:700;font-size:.95rem}
.hint{font-size:.83rem;color:var(--muted);font-weight:400}
input,select,textarea{font:inherit;font-size:16px;color:var(--ink);background:var(--paper);border:1.5px solid var(--line);border-radius:10px;padding:11px 12px;width:100%}
textarea{min-height:84px;resize:vertical}
input:focus,select:focus,textarea:focus,button:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid var(--pen);outline-offset:2px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips input{position:absolute;opacity:0;width:1px;height:1px}
.chips label{border:1.5px solid var(--line);border-radius:999px;padding:8px 14px;font-weight:700;cursor:pointer;background:var(--paper)}
.chips input:checked+label{background:var(--pen);border-color:var(--pen);color:var(--card)}
.chips input:focus-visible+label{outline:3px solid var(--pen);outline-offset:2px}
button{font:inherit;font-weight:700;border:0;border-radius:12px;padding:14px 18px;cursor:pointer}
.primary{background:var(--pen);color:var(--card);font-size:1.05rem;font-family:var(--display)}
.secondary{background:var(--pen-soft);color:var(--pen)}
.ghost{background:transparent;color:var(--muted);border:1.5px solid var(--line)}
button:disabled{opacity:.55;cursor:default}
.actions{display:flex;flex-wrap:wrap;gap:10px}
.actions button{flex:1 1 160px}
.status{display:flex;align-items:center;gap:12px;color:var(--muted)}
.dot{width:12px;height:12px;border-radius:50%;background:var(--pen);animation:pulse 1.1s ease-in-out infinite;flex:none}
@keyframes pulse{50%{opacity:.25;transform:scale(.7)}}
@media (prefers-reduced-motion:reduce){.dot{animation:none}}
.notice{background:var(--warn-bg);color:var(--warn);border-radius:12px;padding:12px 14px;font-size:.95rem}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.92rem}
.check input{width:20px;height:20px;flex:none;margin-top:2px;padding:0}
.check a,.site-foot a,.donate a{color:var(--pen)}

/* Ergebnis */
.result h2{font-size:1.6rem}
.meta{color:var(--muted);font-size:.92rem;margin:0}
.sec{display:flex;flex-direction:column;gap:10px}
.sec h3{font-size:1.15rem;display:flex;align-items:center;gap:8px}
.sec h3::before{content:"";width:14px;height:14px;border-radius:4px;background:var(--marker);flex:none}
.sec p{margin:0;white-space:pre-wrap}
ul.clean{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:6px}
.merk{background:var(--marker);color:var(--marker-ink);border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.merk p{margin:0;font-weight:700}
.box{background:var(--pen-soft);border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:6px}
.box p{margin:0;white-space:pre-wrap}
.task{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:start}
.num{width:34px;height:34px;border-radius:50%;background:var(--pen-soft);color:var(--pen);font-family:var(--display);font-weight:800;display:grid;place-items:center;font-variant-numeric:tabular-nums}
.task-body{min-width:0;display:flex;flex-direction:column;gap:6px}
.task-body p{margin:0;white-space:pre-wrap}
details{border-radius:10px;background:var(--paper);border:1.5px solid var(--line)}
details summary{cursor:pointer;padding:8px 12px;font-weight:700;color:var(--pen)}
details div{padding:0 12px 10px;white-space:pre-wrap}
dl.terms{margin:0;display:flex;flex-direction:column;gap:8px}
dl.terms dt{font-weight:700}
dl.terms dd{margin:0;color:var(--muted)}
.pdfbox{display:flex;flex-direction:column;gap:10px;background:var(--pen-soft);border-radius:12px;padding:14px}
.pdf-row{display:flex;flex-wrap:wrap;gap:8px}
.pdf-row button{flex:1 1 140px;padding:12px 14px}

/* Fotos */
.photo-area{background:var(--pen-soft);border-radius:12px;padding:14px;gap:10px}
.photo-btns{display:flex;flex-wrap:wrap;gap:10px}
.photo-btns button{flex:1 1 150px}
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:8px}
.thumbs:empty{display:none}
.thumb{position:relative;aspect-ratio:3/4;border-radius:10px;overflow:hidden;border:1.5px solid var(--line);background:var(--card)}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb button{position:absolute;top:4px;right:4px;width:30px;height:30px;padding:0;border-radius:50%;background:var(--ink);color:var(--card);font-size:18px;line-height:30px}
.thumb span{position:absolute;left:4px;bottom:4px;background:var(--card);color:var(--ink);border-radius:6px;padding:0 6px;font-size:.75rem;font-weight:700}

/* Karteikarten-Abfrage, Kopfrechnen, Quiz */
.flash{min-height:200px;border-radius:18px;border:2px solid var(--line);background:var(--card);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:24px 18px;text-align:center;cursor:pointer;box-shadow:0 6px 0 var(--pen-soft)}
.flash.back{background:#fffbe6;border-color:var(--marker)}
.flash .side{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.flash .word{font-family:var(--display);font-weight:800;font-size:1.7rem;line-height:1.2;overflow-wrap:anywhere}
.flash .tip{color:var(--muted);font-size:.95rem}
.progress{height:10px;border-radius:999px;background:var(--pen-soft);overflow:hidden}
.progress span{display:block;height:100%;background:var(--ok);border-radius:999px;transition:width .3s}
.good{background:var(--ok);color:#fff}
.again{background:var(--warn-bg);color:var(--warn)}
.big-task{font-family:var(--display);font-weight:800;font-size:2.6rem;text-align:center;font-variant-numeric:tabular-nums}
.answer{font-size:1.8rem;text-align:center;font-family:var(--display);font-weight:800}
.feedback{border-radius:12px;padding:10px 14px;font-weight:700;text-align:center}
.feedback.ok{background:var(--ok-bg);color:var(--ok)}
.feedback.no{background:var(--warn-bg);color:var(--warn)}
.opts{display:flex;flex-direction:column;gap:8px}
.opts button{text-align:left;background:var(--paper);border:1.5px solid var(--line);color:var(--ink);font-weight:400;padding:10px 14px}
.opts button.right{background:var(--ok-bg);border-color:var(--ok);color:var(--ok);font-weight:700}
.opts button.wrong{background:var(--warn-bg);border-color:var(--warn);color:var(--warn)}
.readtext{font-size:1.15rem;line-height:1.7;white-space:pre-wrap;margin:0}
.stat{display:flex;gap:10px;flex-wrap:wrap}
.stat span{background:var(--pen-soft);color:var(--pen);border-radius:999px;padding:4px 12px;font-weight:700;font-size:.9rem;font-variant-numeric:tabular-nums}

/* Lernplan */
.exam{display:grid;grid-template-columns:1fr 1fr;gap:10px;border:1.5px dashed var(--line);border-radius:12px;padding:12px;position:relative}
.exam .wide{grid-column:1/-1}
.exam .del{position:absolute;top:6px;right:6px;width:32px;height:32px;padding:0;border-radius:50%;background:var(--paper);border:1.5px solid var(--line);color:var(--muted)}
.days{display:flex;flex-wrap:wrap;gap:6px}
.days label{display:flex;align-items:center;gap:6px;border:1.5px solid var(--line);border-radius:999px;padding:6px 12px;cursor:pointer;font-weight:700}
.days input{width:18px;height:18px;padding:0}
.plan-day{display:flex;flex-direction:column;gap:6px;border-top:1.5px dashed var(--line);padding-top:10px}
.plan-day:first-child{border-top:0;padding-top:0}
.plan-day b{font-family:var(--display)}
.plan-item{display:flex;gap:10px;align-items:flex-start}
.plan-item i{width:12px;height:12px;border-radius:4px;flex:none;margin-top:6px;background:var(--c,var(--pen))}
.exam-day{background:var(--marker);color:var(--marker-ink);border-radius:10px;padding:6px 10px;font-weight:700}

/* Spenden & Fuß */
.donate{background:var(--marker);color:var(--marker-ink);border-color:transparent}
.donate h2{font-size:1.25rem}
.donate p{margin:0}
.donate .btn{align-self:flex-start;background:var(--ink);color:var(--card);text-decoration:none;font-weight:700;border-radius:12px;padding:12px 18px}
.site-foot{color:var(--muted);font-size:.85rem;display:flex;flex-direction:column;gap:6px}
.site-foot p{margin:0}
.site-foot nav{display:flex;gap:16px;flex-wrap:wrap}
.tool-nav{display:flex;flex-wrap:wrap;gap:8px}
.tool-nav a{font-size:.88rem;font-weight:700;color:var(--pen);background:var(--pen-soft);border-radius:999px;padding:5px 12px;text-decoration:none}
.tool-nav a[aria-current="page"]{background:var(--pen);color:#fff}

/* Kennzeichen-Leiste unter der Einleitung (Update 30) */
.kennzeichen{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 0}
.kennzeichen span{font-size:.84rem;font-weight:700;border-radius:999px;padding:3px 10px;background:#f5eee2;color:#34443b;border:1px solid #eadfcc}
.kennzeichen .ohne{background:#e3f5ea;color:#14532d;border-color:#b9e2c9}
.kennzeichen .ki{background:#e2f2e9;color:#163a2c;border-color:#bfe3d0}
.kennzeichen .zwei{background:#fff0e3;color:#8a3508;border-color:#f5cba7}