/* FIAE-Lernapp – Farben als Variablen, Farbthemen über data-farbthema am <body> */
:root {
  --bg: #f4f6fb; --card: #ffffff; --text: #1b2232; --muted: #5f6880; --line: #e3e7f0;
  --accent: #3559e0; --accent-2: #7b5cf0; --accent-soft: #e9edfd; --accent-text: #ffffff;
  --ok: #1d8a4e; --ok-bg: #e4f6ec; --bad: #c4392d; --bad-bg: #fcebe9; --gold: #e8a317; --flame: #f05a28;
  --radius: 16px; --shadow: 0 1px 2px rgba(20, 30, 60, .06), 0 4px 16px rgba(20, 30, 60, .06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11141b; --card: #1a1f2a; --text: #e7eaf1; --muted: #9aa3b8; --line: #2b3242;
    --accent: #7590ff; --accent-2: #a68cff; --accent-soft: #232b45; --accent-text: #0c1020;
    --ok: #4cc584; --ok-bg: #173226; --bad: #f07466; --bad-bg: #3b1f1c; --shadow: 0 1px 2px rgba(0,0,0,.3);
  }
}
body[data-farbthema="ozean"] { --accent: #0b84a5; --accent-2: #19b5c7; --accent-soft: #e1f4f8; }
body[data-farbthema="wald"] { --accent: #2f8a4f; --accent-2: #7cb342; --accent-soft: #e6f4e8; }
body[data-farbthema="sonnenuntergang"] { --accent: #e0573a; --accent-2: #f2a03d; --accent-soft: #fdeee6; }
body[data-farbthema="terminal"] { --bg: #0b0f0c; --card: #121914; --text: #c8f7d0; --muted: #7fae88; --line: #20302a;
  --accent: #3ddc84; --accent-2: #1fa463; --accent-soft: #15281d; --accent-text: #04140a; }
body[data-farbthema="galaxie"] { --bg: #0f0b1e; --card: #19132e; --text: #ece6ff; --muted: #a99ccc; --line: #2c2450;
  --accent: #b18cff; --accent-2: #ff7ac6; --accent-soft: #261c45; --accent-text: #160d2b; }
@media (prefers-color-scheme: dark) {
  body[data-farbthema="ozean"] { --accent: #4cc3e0; --accent-2: #6fe0ea; --accent-soft: #15303a; --accent-text: #04161c; }
  body[data-farbthema="wald"] { --accent: #6cc98a; --accent-2: #a5d66b; --accent-soft: #183022; --accent-text: #06170c; }
  body[data-farbthema="sonnenuntergang"] { --accent: #ff8a65; --accent-2: #ffc061; --accent-soft: #3a2118; --accent-text: #1f0b04; }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.6 "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); }
code { font-family: ui-monospace, "SF Mono", Consolas, monospace; font-size: .92em; background: var(--accent-soft); padding: 1px 5px; border-radius: 5px; }
pre { background: var(--accent-soft); padding: 12px 14px; border-radius: 10px; overflow-x: auto; }
pre code { background: none; padding: 0; }

/* Kopfzeile */
header.top { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
header.top .inner { max-width: 920px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 12px; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 800; text-decoration: none; color: var(--text); margin-right: auto; letter-spacing: -.01em; }
.brand .logo { width: 30px; height: 30px; border-radius: 9px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff;
  display: grid; place-items: center; font-size: 15px; }
.chips { display: flex; gap: 8px; align-items: center; }
.chip { display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 99px; background: var(--accent-soft); font-weight: 700; font-size: 14px; text-decoration: none; color: var(--text); }
nav.haupt { max-width: 920px; margin: 0 auto; padding: 0 8px; display: flex; gap: 2px; overflow-x: auto; }
nav.haupt a { padding: 10px 12px; text-decoration: none; color: var(--muted); font-weight: 600; font-size: 15px; border-bottom: 2px solid transparent; white-space: nowrap; }
nav.haupt a.aktiv { color: var(--accent); border-bottom-color: var(--accent); }

main { max-width: 920px; margin: 0 auto; padding: 20px 16px 64px; }
h1 { font-size: 1.65rem; margin: 0 0 10px; letter-spacing: -.02em; line-height: 1.25; }
h2 { font-size: 1.2rem; margin: 30px 0 12px; letter-spacing: -.01em; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; box-shadow: var(--shadow); }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }

/* Knöpfe */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 0; border-radius: 12px; padding: 12px 20px; font: inherit; font-weight: 700;
  cursor: pointer; background: var(--accent); color: var(--accent-text); text-decoration: none; box-shadow: 0 3px 0 rgba(0,0,0,.15); transition: transform .05s; }
.btn:active { transform: translateY(2px); box-shadow: none; }
.btn.gross { padding: 15px 26px; font-size: 1.05rem; }
.btn.secondary { background: var(--card); color: var(--accent); border: 2px solid var(--line); box-shadow: none; }
.btn.link { background: none; color: var(--muted); padding: 12px 6px; font-weight: 500; box-shadow: none; }
.btn:disabled { opacity: .5; cursor: default; }
.btn.voll { width: 100%; }

/* Startseite */
.hero { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; border: 0; display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.hero h1 { color: #fff; margin-bottom: 4px; }
.hero p { margin: 0 0 14px; opacity: .92; }
.hero .btn { background: #fff; color: var(--accent); }
.hero .text { flex: 1 1 260px; }
.ring { --p: 0; width: 112px; height: 112px; border-radius: 50%; flex: none; display: grid; place-items: center;
  background: conic-gradient(#fff calc(var(--p) * 1%), rgba(255,255,255,.25) 0); }
.ring > div { width: 88px; height: 88px; border-radius: 50%; background: rgba(0,0,0,.18); display: grid; place-items: center; text-align: center; line-height: 1.1; color: #fff; }
.ring b { font-size: 1.5rem; display: block; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 16px; }
.stats .card { margin: 0; padding: 14px; text-align: center; }
.stat { font-size: 1.7rem; font-weight: 800; line-height: 1.1; }
.stat-label { color: var(--muted); font-size: 13px; }
.bar { height: 10px; background: var(--line); border-radius: 99px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 99px; }
.aktionen { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); margin-bottom: 16px; }
.aktion { display: flex; gap: 14px; align-items: center; text-decoration: none; color: var(--text); margin: 0; }
.aktion .icon { font-size: 28px; width: 52px; height: 52px; border-radius: 14px; background: var(--accent-soft); display: grid; place-items: center; flex: none; }
.aktion b { display: block; }
button.aktion { font: inherit; text-align: left; cursor: pointer; width: 100%; }

/* Themenpfad */
.themen { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.thema-karte { display: block; text-decoration: none; color: var(--text); margin: 0; }
.thema-karte:hover { border-color: var(--accent); }
.thema-kopf { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.sterne { color: var(--gold); letter-spacing: 2px; white-space: nowrap; }
.sterne .aus { color: var(--line); }
.thema-karte .bar { margin: 10px 0 6px; }

/* Lernen */
.lern-kopf { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.lern-kopf .bar { flex: 1; height: 14px; }
.x { text-decoration: none; color: var(--muted); font-size: 22px; line-height: 1; background: none; border: 0; cursor: pointer; padding: 4px; }
.thema-tag { font-size: 12px; color: var(--accent); text-transform: uppercase; letter-spacing: .06em; font-weight: 700; }
.frage-text { font-size: 1.12rem; margin: 6px 0 16px; }
.frage-text pre { font-size: .95rem; }
.frage-bild { margin: 4px 0 18px; text-align: center; }
.frage-bild img { max-width: 100%; height: auto; border-radius: 10px; background: #fff; border: 1px solid var(--line); padding: 8px; }
.optionen { display: grid; gap: 10px; margin-bottom: 18px; }
.option { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border: 2px solid var(--line); border-radius: 14px; cursor: pointer; background: var(--card); transition: border-color .1s; }
.option:hover { border-color: var(--accent); }
.option:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.option input { margin-top: 4px; width: 18px; height: 18px; flex: none; accent-color: var(--accent); }
.option.richtig { border-color: var(--ok); background: var(--ok-bg); }
.option.falsch { border-color: var(--bad); background: var(--bad-bg); }
.feedback { border-radius: 14px; padding: 16px; margin: 14px 0 18px; }
.feedback.ok { background: var(--ok-bg); border: 2px solid var(--ok); }
.feedback.bad { background: var(--bad-bg); border: 2px solid var(--bad); }
.feedback .titel { font-weight: 800; font-size: 1.1rem; margin-bottom: 4px; }
.feedback p:last-child { margin-bottom: 0; }
details.nachlesen { margin-top: 10px; background: var(--card); border-radius: 10px; padding: 10px 14px; border: 1px solid var(--line); }
details.nachlesen summary { cursor: pointer; font-weight: 700; }
.lektion-inhalt { font-size: 1.05rem; }
.lektion-inhalt table { margin: 8px 0 14px; }
.merksatz { border-left: 4px solid var(--gold); background: var(--accent-soft); padding: 12px 14px; border-radius: 10px; font-weight: 600; margin: 16px 0; }
.zahl-eingabe { display: flex; gap: 8px; align-items: center; max-width: 340px; margin-bottom: 18px; }
.zahl-eingabe input { font-size: 1.1rem; }

/* Tabellen, Formulare */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: 13px; color: var(--muted); font-weight: 700; }
td.num, th.num { text-align: right; white-space: nowrap; }
.table-wrap { overflow-x: auto; }
input[type=text], input[type=password], input[type=email], input[type=number], select {
  width: 100%; padding: 11px 13px; border: 2px solid var(--line); border-radius: 10px; font: inherit; background: var(--bg); color: var(--text); }
input:focus, select:focus { outline: none; border-color: var(--accent); }
form p { margin: 0 0 16px; }
form label { display: block; font-weight: 700; margin-bottom: 4px; }
form p:has(input[type=checkbox]) label { display: inline; }
.helptext, .errorlist { font-size: 13px; color: var(--muted); display: block; margin-top: 4px; }
.errorlist { color: var(--bad); padding-left: 18px; margin: 4px 0; }
.messages { list-style: none; padding: 0; margin: 0 0 16px; }
.messages li { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 10px; padding: 11px 14px; margin-bottom: 8px; }
.messages li.success { border-left-color: var(--gold); font-weight: 600; }
.auth { max-width: 440px; margin: 24px auto; }

/* Rangliste */
.rang { display: grid; grid-template-columns: 36px 1fr auto; gap: 4px 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.rang:last-child { border-bottom: 0; }
.rang .platz { font-weight: 800; font-size: 1.1rem; text-align: center; }
.rang .bar { grid-column: 2 / 4; height: 8px; }
.rang.ich { background: var(--accent-soft); border-radius: 10px; padding: 12px 10px; margin: 0 -10px; }
.tabs { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.tabs a { padding: 7px 14px; border-radius: 99px; text-decoration: none; background: var(--card); border: 1px solid var(--line); color: var(--text); font-weight: 600; font-size: 14px; }
.tabs a.aktiv { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }

/* Abzeichen */
.abzeichen-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.abzeichen { text-align: center; padding: 16px 10px; margin: 0; }
.abzeichen .symbol { font-size: 40px; line-height: 1.2; }
.abzeichen.gesperrt { opacity: .45; filter: grayscale(1); }
.abzeichen b { display: block; margin-top: 4px; }
.mini-abzeichen { display: flex; gap: 8px; flex-wrap: wrap; }
.mini-abzeichen span { font-size: 26px; }

/* Prüfungssimulation */
.timer { position: sticky; top: 64px; z-index: 5; background: var(--card); border: 2px solid var(--accent); border-radius: 12px; padding: 8px 14px;
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; font-weight: 700; box-shadow: var(--shadow); }
.timer.knapp { border-color: var(--bad); color: var(--bad); }
.sim-frage { scroll-margin-top: 130px; }
.punkte-tag { float: right; font-size: 13px; color: var(--muted); font-weight: 600; }
.note { font-size: 3rem; font-weight: 800; line-height: 1; }

@media (max-width: 520px) {
  h1 { font-size: 1.4rem; }
  .card { padding: 16px; }
  .stat { font-size: 1.4rem; }
  .ring { width: 92px; height: 92px; } .ring > div { width: 72px; height: 72px; } .ring b { font-size: 1.2rem; }
  .chip .lang { display: none; }
}
.lektion-inhalt td:last-child, .frage-text td:last-child { white-space: nowrap; }
.punkte-raster { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 12px; }
.punkte-raster input { width: 70px; padding: 8px; font-size: 1rem; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--text); }

/* Übungsprüfung online */
.ap-deckblatt { background: var(--accent-soft); }
.ap-titel { font-size: 1.7rem; font-weight: 800; letter-spacing: -.01em; }
.ap-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; margin-top: 10px; }
.ap-kopf { margin-top: 0; padding-bottom: 8px; border-bottom: 2px solid var(--text); }
.ap-intro { margin: 18px 0 6px; }
.ap-teil { margin: 14px 0 22px; }
.ap-frage { display: grid; grid-template-columns: auto 1fr auto; gap: 8px; align-items: start; margin-bottom: 8px; }
.ap-frage p { margin: 0 0 6px; }
.ap-frage .punkte-tag { float: none; white-space: nowrap; }
.ap-label { font-weight: 700; min-width: 2.2em; }
.ap-code { font-size: 14px; }
.ap .ap-text, .ap-feld input, .ap-tab input { width: 100%; box-sizing: border-box; font: inherit; color: var(--text); background: var(--card);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.ap .ap-text { background-image: repeating-linear-gradient(transparent 0 27px, var(--line) 27px 28px); line-height: 28px; padding-top: 2px; resize: vertical; }
.ap-mono, .ap .ap-mono { font-family: ui-monospace, "SF Mono", Consolas, monospace; font-size: 14px; background-image: none; line-height: 1.5; }
.ap-text:focus, .ap-feld input:focus, .ap-tab input:focus { outline: 2px solid var(--accent); border-color: transparent; }
form label.ap-feld, .ap-feld { font-weight: 500; display: grid; grid-template-columns: minmax(110px, max-content) 1fr; gap: 10px; align-items: center; margin: 6px 0; }
.ap-feldlabel { font-weight: 600; font-size: 14px; margin: 6px 0 4px; }
.ap-tab td { padding: 6px; }
.ap-tab input { min-width: 80px; padding: 6px 8px; }
.ap-daten { font-size: 14px; margin-bottom: 8px; }
.ap-daten td p, .ap-tab td p { margin: 0; }
.ap-vergleich { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; }
.ap-vergleich.breit { grid-template-columns: minmax(0, 1fr); }
@media (max-width: 760px) { .ap-vergleich { grid-template-columns: 1fr; } .ap-feld { grid-template-columns: 1fr; gap: 2px; } }
.ap-antwort { white-space: pre-wrap; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; min-height: 2.4em; margin-bottom: 6px; }
.ap-loesung { background: var(--ok-bg); border-radius: 10px; padding: 4px 12px; }
.ap-loesung p { margin: 6px 0; }
.ap-selbst { border-left: 4px solid var(--gold); padding-left: 12px; }
form label.ap-bewerten { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; font-weight: 600; }
.ap-bewerten select { width: auto; min-width: 80px; font: inherit; padding: 6px 8px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--text); }
.ap-ok { color: var(--ok); font-weight: 600; margin: 8px 0 0; }
.ap-zelle { display: inline-flex; flex-wrap: wrap; gap: 6px; align-items: center; }
form label.ap-check { font-size: 12px; font-weight: 500; color: var(--muted); display: inline-flex; gap: 4px; align-items: center; white-space: nowrap; margin: 0; }
.ap-check input { width: auto; margin: 0; }
.ap-summe a, .ap-summe div { display: flex; flex-direction: column; align-items: center; padding: 10px; border: 1px solid var(--line); border-radius: 12px; text-decoration: none; color: var(--text); }
.ap-summe strong { font-size: 1.5rem; }