/* ============================================================
   SCHEINBAR. STABIL. — Stylesheet v3
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:    #0a0a0a; --bg1: #111; --bg2: #181818; --bg3: #202020;
  --line:  #282828; --line2: #333;
  --text:  #fff;    --text2: #e0e0e0; --text3: #b0b0b0;
  --m:  #c0392b; --e: #2471a3; --n: #1e8449; --g: #b7770d;
  --xp: #e2b714; --ac: #e2b714;
  --font: 'IBM Plex Sans', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --r: 8px;
}

html { font-size: 17px; scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--font); min-height: 100vh; -webkit-font-smoothing: antialiased; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; color: inherit; }
input, textarea { font-family: var(--font); }

.screen { display: none; }
.screen.active, #screen-app { display: block; }
.wrap { max-width: 600px; margin: 0 auto; padding: 0 20px 120px; }

/* ── TOPBAR ── */
.topbar { position: sticky; top: 0; z-index: 200; background: var(--bg); border-bottom: 1px solid var(--line); height: 58px; display: flex; align-items: center; justify-content: space-between; padding: 0 16px; gap: 10px; }
.brand { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.brand-name { font-size: 12px; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase; }
.brand-dot { color: var(--xp); }

.topbar-nav { display: flex; align-items: center; gap: 3px; background: var(--bg2); border: 1px solid var(--line2); border-radius: 22px; padding: 3px; }
.nav-btn { display: flex; align-items: center; gap: 6px; padding: 7px 15px; border-radius: 18px; font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--text3); transition: all .15s; }
.nav-btn span { display: none; }
.nav-btn.active { background: var(--bg3); color: var(--text); }
.nav-btn.active svg { color: var(--xp); }
@media(min-width:480px){ .nav-btn span { display:inline; } }

.topbar-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

/* Streak pill */
.streak-pill { display: flex; align-items: center; gap: 4px; font-size: 14px; font-weight: 700; color: #ff6b35; }
.streak-pill svg { width: 16px; height: 16px; }

/* XP pill */
.xp-pill { display: flex; align-items: center; gap: 4px; font-family: var(--mono); font-size: 13px; font-weight: 700; color: var(--xp); }

/* Topbar badges */
.topbar-badges { display: flex; align-items: center; gap: 3px; }
.topbar-badge { font-size: 16px; line-height: 1; }

.user-btn { display: flex; align-items: center; gap: 5px; font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--text3); transition: color .15s; }
.user-btn:hover { color: var(--text); }

/* ── TABS ── */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── AUTH ── */
.auth-wrap { max-width: 420px; margin: 0 auto; padding: 50px 20px 80px; }
.auth-hero { text-align: center; margin-bottom: 40px; }
.auth-title { font-size: 36px; font-weight: 700; letter-spacing: -1px; }
.auth-title span { color: var(--xp); }
.auth-sub { font-size: 12px; letter-spacing: 3px; text-transform: uppercase; color: var(--text3); margin-top: 8px; }
.auth-box { background: var(--bg1); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.auth-tabs { display: flex; border-bottom: 1px solid var(--line); }
.auth-tab { flex: 1; padding: 14px; font-size: 12px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--text3); border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all .15s; }
.auth-tab.active { color: var(--text); border-bottom-color: var(--xp); }
.auth-form { padding: 26px; display: flex; flex-direction: column; gap: 16px; }
.field-label { font-size: 12px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--text3); margin-bottom: 6px; }
.field-input { width: 100%; background: var(--bg2); border: 1px solid var(--line2); border-radius: var(--r); padding: 13px 15px; color: var(--text); font-size: 15px; outline: none; transition: border-color .15s; }
.field-input:focus { border-color: var(--text3); }
.field-input::placeholder { color: var(--text3); }
.btn-auth { width: 100%; padding: 15px; background: var(--xp); color: var(--bg); border-radius: var(--r); font-size: 13px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; transition: opacity .15s; margin-top: 4px; }
.btn-auth:hover { opacity: .88; }
.btn-auth:disabled { opacity: .4; cursor: not-allowed; }
.auth-err { font-size: 13px; color: var(--m); text-align: center; min-height: 18px; }
.auth-note { font-size: 12px; color: var(--text3); text-align: center; line-height: 1.6; }
.auth-success { font-size: 14px; color: #58d68d; text-align: center; padding: 16px; background: rgba(30,132,73,.1); border: 1px solid rgba(30,132,73,.3); border-radius: var(--r); }

/* ── DASHBOARD ── */
.dash-hero { text-align:center; padding:32px 0 20px; }
.dash-hero img { margin:0 auto 12px; display:block; }
.dash-hero-title { font-size:28px; font-weight:700; letter-spacing:-0.5px; margin-bottom:6px; color:#fff; }
.dash-hero-title span { color:var(--xp); }
.dash-hero-title #dash-level-name { color:#fff; }
.dash-name { font-size:15px; font-weight:600; letter-spacing:3px; text-transform:uppercase; color:#fff; }

/* ── LEVEL-PFAD horizontal ── */
.level-path {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-bottom: 12px;
}
.level-step {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  padding: 10px 6px; border-radius: var(--r);
  border: 1px solid transparent;
  opacity: .22; transition: all .2s;
  position: relative;
}
.level-step.reached  { opacity: .5; }
.level-step.current  {
  opacity: 1;
  background: var(--bg2);
  border-color: var(--xp);
  box-shadow: 0 0 0 1px rgba(226,183,20,.2);
}
.level-icon { font-size: 18px; color: var(--xp); }
.level-name { font-size: 9px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--text2); text-align: center; line-height: 1.2; }
.level-xp   { font-size: 9px; color: var(--text3); font-family: var(--mono); }
.level-step.current .level-name { color: var(--xp); }
.level-step.current .level-xp   { color: var(--text3); }

.level-bar-wrap { margin-bottom: 6px; }
.level-bar-bg   { height: 4px; background: var(--bg3); border-radius: 2px; margin-bottom: 5px; }
.level-bar-fill { height: 4px; background: var(--xp); border-radius: 2px; transition: width .6s cubic-bezier(.4,0,.2,1); }
.level-bar-lbl  { font-size: 12px; color: var(--text3); }

/* ── STATS ── */
.stats-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin-bottom: 30px; }
.stat-cell { background: var(--bg1); padding: 18px 14px; display: flex; flex-direction: column; gap: 5px; }
.stat-val { font-family: var(--mono); font-size: 22px; font-weight: 700; color: var(--text); }
.stat-lbl { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--text3); }

/* ── FACHFORTSCHRITT ── */
.section-head { display: flex; align-items: center; margin-bottom: 14px; }
.section-title { font-size: 11px; font-weight: 700; letter-spacing: 4px; text-transform: uppercase; color: var(--text2); }

.subject-block { margin-bottom: 28px; }
.subject-block-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; padding-bottom: 8px; border-bottom: 2px solid var(--ac-subj, var(--line2)); }
.subject-block-label { font-size: 12px; font-weight: 700; letter-spacing: 4px; text-transform: uppercase; }
.subject-block-meta  { font-size: 11px; color: var(--text3); }

.topic-progress-list { display: flex; flex-direction: column; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.topic-progress-item {
  background: var(--bg1); padding: 13px 16px;
  display: flex; align-items: center; gap: 12px;
  cursor: pointer; transition: background .12s;
  border-left: 3px solid transparent;
}
.topic-progress-item:hover { background: var(--bg2); }
.tp-name { flex: 1; font-size: 14px; color: var(--text2); font-weight: 500; }
.tp-lb   { font-size: 11px; color: var(--text3); margin-top: 2px; }
.tp-bar-wrap { width: 70px; }
.tp-bar-bg   { height: 3px; background: var(--bg3); border-radius: 2px; }
.tp-bar-fill { height: 3px; border-radius: 2px; transition: width .4s; }
.tp-stat { font-family: var(--mono); font-size: 11px; color: var(--text3); text-align: right; min-width: 36px; }
.tp-new  { font-size: 10px; font-weight: 700; letter-spacing: 1px; background: var(--xp); color: var(--bg); border-radius: 3px; padding: 2px 5px; }

/* Dashboard Recommendation Card */
.dash-recommendation {
  display: flex; align-items: center; gap: 14px;
  background: var(--bg2); border: 1px solid var(--xp); border-radius: var(--r);
  padding: 16px; margin: 24px 0 20px; cursor: pointer;
  transition: all .2s;
  box-shadow: 0 4px 15px rgba(226,183,20,0.05);
}
.dash-recommendation:hover { background: var(--bg3); box-shadow: 0 6px 20px rgba(226,183,20,0.15); border-color: #fff; }
.dash-recommendation:active { transform: scale(0.98); }
.rec-icon { font-size: 26px; line-height: 1; filter: drop-shadow(0 0 5px rgba(226,183,20,0.5)); }
.rec-text { flex: 1; display:flex; flex-direction: column; gap: 4px; }
.rec-title { font-size: 11px; font-weight: 800; letter-spacing: 3px; text-transform: uppercase; color: var(--xp); }
.rec-desc { font-size: 14px; color: var(--text2); line-height: 1.45; }
.rec-arrow { font-size: 22px; color: var(--text3); transition: all .2s; }
.dash-recommendation:hover .rec-arrow { color: var(--xp); transform: translateX(4px); }

/* Dashboard Gruppen-Überschrift */
.dash-group-head {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 10px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase;
  color: var(--text3); padding: 7px 16px 5px;
  background: var(--bg2); border-bottom: 1px solid var(--line);
}

/* ── BADGES ── */
.badges-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; margin-bottom: 30px; }
.badge-item {
  background: var(--bg1); border: 1px solid var(--line); border-radius: var(--r);
  padding: 14px 8px; display: flex; flex-direction: column; align-items: center;
  gap: 7px; text-align: center; position: relative; cursor: default;
  transition: background .12s;
}
.badge-item.earned { border-color: var(--line2); background: var(--bg2); }
.badge-item.earned:hover { background: var(--bg3); }
.badge-icon { font-size: 22px; opacity: .2; }
.badge-item.earned .badge-icon { opacity: 1; }
.badge-name { font-size: 10px; letter-spacing: 1px; text-transform: uppercase; color: var(--text3); line-height: 1.3; }
.badge-item.earned .badge-name { color: var(--text2); }

/* Badge Tooltip */
.badge-item .badge-tooltip {
  display: none; position: absolute; bottom: calc(100% + 8px); left: 50%;
  transform: translateX(-50%); background: var(--bg3); border: 1px solid var(--line2);
  border-radius: var(--r); padding: 8px 10px; font-size: 11px; color: var(--text2);
  white-space: nowrap; z-index: 100; line-height: 1.4; min-width: 140px; text-align: center;
  pointer-events: none;
}
.badge-item .badge-tooltip::after {
  content: ''; position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  border: 5px solid transparent; border-top-color: var(--line2);
}
.badge-item:hover .badge-tooltip { display: block; }

/* ── TRAINING VIEWS ── */
.train-view { display: none; }
.train-view.active { display: block; }

.train-header { padding: 24px 0 20px; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
.train-title  { font-size: 24px; font-weight: 700; letter-spacing: -0.5px; margin: 6px 0 3px; }
.train-sub    { font-size: 12px; letter-spacing: 3px; text-transform: uppercase; color: var(--text3); }

/* Fachkacheln */
.subject-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin-bottom: 20px; }
.subj-btn {
  background: var(--bg1); padding: 0; display: flex; flex-direction: column;
  text-align: left; transition: background .12s; overflow: hidden;
}
.subj-btn:hover { background: var(--bg2); }
.subj-color-bar { height: 4px; width: 100%; }
.subj-btn-inner { padding: 18px 16px; display: flex; flex-direction: column; gap: 7px; }
.subj-name  { font-size: 16px; font-weight: 700; color: var(--text); }
.subj-meta  { font-size: 12px; color: var(--text3); }
.subj-prog  { font-size: 11px; color: var(--text3); display: flex; align-items: center; gap: 6px; }
.subj-prog-bar { flex: 1; height: 2px; background: var(--bg3); border-radius: 1px; overflow: hidden; }
.subj-prog-fill { height: 2px; border-radius: 1px; }

/* Aufklappbare Topic-Gruppen */
.topic-group { border-bottom: 1px solid var(--line); }
.topic-group:last-child { border-bottom: none; }

.topic-group-head {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 13px 16px;
  background: var(--bg2); text-align: left;
  cursor: pointer; transition: background .12s;
  border: none;
}
.topic-group-head:hover { background: var(--bg3); }

.topic-group-name {
  flex: 1; font-size: 12px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase; color: var(--text2);
}
.topic-group-meta {
  font-family: var(--mono); font-size: 11px; color: var(--text3);
}
.topic-group-arrow {
  font-size: 10px; color: var(--text3); width: 14px; text-align: center;
}

.topic-group-body { display: none; }
.topic-group-body.open { display: block; }

.topic-group-body .topic-btn {
  padding-left: 24px; /* Einrücken unter Gruppe */
}
/* Themenliste */
.topic-list-wrap { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin-bottom: 20px; }
.topic-btn {
  display: flex; align-items: center; justify-content: space-between;
  padding: 15px 16px; background: var(--bg1); border-bottom: 1px solid var(--line);
  width: 100%; text-align: left; transition: background .12s;
  border-left: 3px solid var(--ac);
}
.topic-btn:last-child { border-bottom: none; }
.topic-btn:hover { background: var(--bg2); }
.topic-btn-left { flex: 1; }
.topic-btn-name { font-size: 15px; color: var(--text); font-weight: 500; }
.topic-btn-lb   { font-size: 11px; color: var(--text3); margin-top: 3px; }
.topic-btn-right { display: flex; align-items: center; gap: 10px; }
.topic-pill-new  { font-size: 10px; font-weight: 700; letter-spacing: 1px; background: var(--xp); color: var(--bg); border-radius: 3px; padding: 2px 6px; }
.topic-pill-stat { font-size: 11px; color: var(--text3); font-family: var(--mono); }
.topic-mini-bar  { width: 48px; }
.topic-mini-bg   { height: 3px; background: var(--bg3); border-radius: 2px; }
.topic-mini-fill { height: 3px; border-radius: 2px; }

/* Session-Start */
.explain-box { background: var(--bg1); border: 1px solid var(--line); border-radius: var(--r); padding: 16px; margin-bottom: 22px; }
.explain-box-head { font-size: 11px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--text3); margin-bottom: 10px; }
.explain-box-btn { font-size: 13px; color: var(--xp); display: flex; align-items: center; gap: 6px; transition: opacity .15s; }
.explain-box-btn:hover { opacity: .75; }

.btn-back { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--text3); display: flex; align-items: center; gap: 6px; transition: color .15s; margin-bottom: 6px; }
.btn-back:hover { color: var(--text2); }

.btn-primary { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; padding: 16px; background: var(--text); color: var(--bg); border-radius: var(--r); font-size: 13px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; transition: opacity .15s; }
.btn-primary:hover { opacity: .88; }
.btn-primary:disabled { opacity: .25; cursor: not-allowed; }

.btn-prim { background: var(--text); color: var(--bg); border-radius: var(--r); padding: 13px 20px; font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; transition: opacity .15s; }
.btn-prim:hover { opacity: .85; }
.btn-prim:disabled { opacity: .2; cursor: not-allowed; }
.btn-sec { background: transparent; border: 1px solid var(--line2); color: var(--text2); border-radius: var(--r); padding: 13px 16px; font-size: 12px; letter-spacing: 2px; text-transform: uppercase; transition: all .15s; }
.btn-sec:not(:disabled):hover { border-color: var(--text3); color: var(--text); }
.inline-btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.btn-next { margin-top: 16px; }

/* ── TRAINING NAV ── */
.train-nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.train-center { text-align: center; }
.train-subj-lbl  { font-size: 11px; letter-spacing: 3px; text-transform: uppercase; color: var(--text3); }
.train-topic-lbl { font-size: 13px; color: var(--text2); margin-top: 2px; }
.score-mono { font-family: var(--mono); font-size: 14px; font-weight: 700; color: var(--text2); transition: all .3s; }

.progress-track { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.progress-track-bg   { flex: 1; background: var(--bg3); border-radius: 3px; height: 5px; overflow: hidden; }
.progress-track-fill { height: 5px; background: var(--ac); border-radius: 3px; width: 0%; transition: width .4s ease; }
.progress-track-lbl  { font-family: var(--mono); font-size: 12px; color: var(--text3); white-space: nowrap; }

.mode-tag { font-size: 12px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--text3); margin-bottom: 16px; display: flex; align-items: center; gap: 7px; }
.mode-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ac); flex-shrink: 0; }

/* ── TASK AREA ── */
.task-area { background: var(--bg1); border: 1px solid var(--line); border-radius: var(--r); padding: 26px 22px; min-height: 260px; }
.task-q { font-size: 17px; color: var(--text); line-height: 1.7; margin-bottom: 22px; }

.mc-list { display: flex; flex-direction: column; gap: 9px; }
.mc-opt {
  background: var(--bg2); border: 1px solid var(--line2); border-radius: var(--r);
  padding: 14px 16px; color: var(--text2); font-size: 15px; text-align: left;
  line-height: 1.5; transition: all .12s;
}
.mc-opt:not([disabled]):hover { border-color: var(--text3); color: var(--text); background: var(--bg3); }
.mc-opt.correct { border-color: var(--n); color: #58d68d; background: rgba(30,132,73,.12); }
.mc-opt.wrong   { border-color: var(--m); color: #ec7063; background: rgba(192,57,43,.12); }

.feedback { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 18px; animation: fadeUp .25s ease; }
.fb-title { font-size: 12px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; margin-bottom: 8px; }
.fb-correct .fb-title { color: #58d68d; }
.fb-wrong .fb-title   { color: #ec7063; }
.fb-text { font-size: 16px; color: var(--text2); line-height: 1.65; }

.hint-box { background: var(--bg2); border-left: 3px solid var(--g); border-radius: 0 var(--r) var(--r) 0; padding: 12px 16px; margin-top: 12px; font-size: 14px; color: var(--text2); animation: fadeUp .2s ease; }

.solution { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 16px; animation: fadeUp .2s ease; }
.sol-label { font-size: 11px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--n); margin-bottom: 8px; }
.sol-ans { font-size: 16px; color: var(--text); font-weight: 500; margin-bottom: 12px; }
.sol-exp { font-size: 14px; color: var(--text2); line-height: 1.65; border-top: 1px solid var(--line); padding-top: 12px; }

/* ── MATHE KEYBOARD ── */
.math-input-wrap { position: relative; }
.math-input-single { width: 100%; background: var(--bg2); border: 1px solid var(--line2); border-radius: var(--r); padding: 13px 15px; color: var(--text); font-size: 18px; font-family: var(--mono); outline: none; transition: border-color .15s; }
.math-input-single:focus { border-color: var(--xp); }
.math-input-multi {
  width: 100%; background: var(--bg2); border: 1px solid var(--line2); border-radius: var(--r);
  padding: 13px 15px; color: var(--text); font-size: 15px; font-family: var(--mono);
  outline: none; transition: border-color .15s; resize: none;
  min-height: 120px; line-height: 1.8;
}
.math-input-multi:focus { border-color: var(--xp); }
.math-keyboard {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 5px;
  margin-top: 8px; padding: 12px; background: var(--bg2);
  border: 1px solid var(--line2); border-radius: var(--r);
}
.math-key {
  padding: 10px 6px; background: var(--bg3); border: 1px solid var(--line2);
  border-radius: 5px; color: var(--text); font-size: 15px; font-family: var(--mono);
  font-weight: 600; text-align: center; cursor: pointer; transition: all .1s;
  user-select: none;
}
.math-key:hover  { background: var(--bg1); border-color: var(--text3); color: var(--xp); }
.math-key:active { transform: scale(.92); }
.math-key.wide   { grid-column: span 2; }

/* Input-Tabelle */
.input-table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.input-table th { font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--text3); padding: 9px 11px; text-align: left; border-bottom: 1px solid var(--line2); }
.input-table td { border-bottom: 1px solid var(--line); vertical-align: middle; }
.input-table tr:last-child td { border-bottom: none; }
.input-table-nr  { font-family: var(--mono); font-size: 14px; font-weight: 700; color: var(--xp); padding: 9px 11px; width: 38px; }
.input-table-lbl { font-size: 14px; color: var(--text2); padding: 9px 11px; }
.input-table-field { padding: 6px 8px; }
.input-item { width: 100%; background: var(--bg2); border: 1px solid var(--line2); border-radius: var(--r); padding: 10px 12px; color: var(--text); font-size: 14px; outline: none; transition: border-color .15s; font-family: var(--mono); }
.input-item:focus { border-color: var(--xp); }

/* Flashcard */
.fc-wrap { perspective: 1200px; cursor: pointer; height: 210px; margin-bottom: 18px; }
.fc-inner { width: 100%; height: 100%; transform-style: preserve-3d; transition: transform .5s cubic-bezier(.4,2,.55,.9); position: relative; }
.fc-wrap.flipped .fc-inner { transform: rotateY(180deg); }
.fc-face { position: absolute; inset: 0; backface-visibility: hidden; border: 1px solid var(--line2); border-radius: var(--r); display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 24px; gap: 10px; text-align: center; }
.fc-front { background: var(--bg2); }
.fc-back  { background: var(--bg3); transform: rotateY(180deg); }
.fc-lbl { font-size: 11px; letter-spacing: 4px; text-transform: uppercase; color: var(--text3); }
.fc-txt { font-size: 17px; font-weight: 500; color: var(--text); line-height: 1.5; }
.fc-tip { font-size: 13px; color: var(--g); font-style: italic; }
.fc-cue { font-size: 12px; color: var(--text3); }

.task-ctr { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--text3); text-align: center; margin-top: 14px; }

/* ── ERKLÄRUNGSSEITE — HEFTEINTRAG ── */
.expl-header { padding: 0 0 18px; border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.expl-subject-bar { height: 4px; border-radius: 2px; margin-bottom: 14px; }
.expl-title { font-size: 22px; font-weight: 700; margin-bottom: 3px; }
.expl-topic-lbl { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--text3); }
.expl-back { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--text3); display: flex; align-items: center; gap: 6px; margin-bottom: 14px; transition: color .15s; }
.expl-back:hover { color: var(--text2); }

.expl-section { border-radius: var(--r); overflow: hidden; margin-bottom: 16px; border: 1px solid; }
.expl-section-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px; font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; }
.expl-section-head svg { flex-shrink: 0; opacity: .8; }
.expl-section-body { padding: 14px 16px; font-size: 15px; line-height: 1.75; color: var(--text2); }

/* Theorie-Box (blau) */
.expl-theorie { border-color: rgba(36,113,163,.4); }
.expl-theorie .expl-section-head { background: rgba(36,113,163,.12); color: #5dade2; }
/* Formel-Box (dunkel/mono) */
.expl-formel { border-color: var(--line2); }
.expl-formel .expl-section-head { background: var(--bg3); color: var(--text2); }
.expl-formel .expl-section-body { font-family: var(--mono); font-size: 15px; color: var(--text); background: var(--bg2); }
/* Merkhilfe-Box (gold) */
.expl-memo  { border-color: rgba(226,183,20,.4); }
.expl-memo  .expl-section-head { background: rgba(226,183,20,.1); color: var(--xp); }
/* Beispiel-Box (grün) */
.expl-beispiel { border-color: rgba(30,132,73,.4); }
.expl-beispiel .expl-section-head { background: rgba(30,132,73,.1); color: #58d68d; }

/* ── VOKABEL ── */
.vocab-header { padding: 20px 0 16px; border-bottom: 1px solid var(--line); margin-bottom: 20px; }
.vocab-bc { font-size:13px; font-weight:700; letter-spacing:2px; text-transform:uppercase; margin-bottom:4px; }
.vocab-bc-sep { color:var(--text3); font-weight:400; }
.vocab-table { width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 22px; }
.vocab-table th { font-size: 11px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--text2); padding: 10px 13px; text-align: left; border-bottom: 1px solid var(--line2); background: var(--bg2); }
.vocab-table td { padding: 10px 13px; border-bottom: 1px solid var(--line); vertical-align: top; }
.vocab-table tr:last-child td { border-bottom: none; }
.vocab-table tr:hover td { background: var(--bg2); }
.vocab-en  { color: var(--text); font-weight: 600; }
.vocab-de  { color: var(--text2); }
.vocab-ex  { color: var(--text3); font-style: italic; font-size: 12px; }
@media (max-width: 600px) {
  .vocab-ex, .vocab-table th:nth-child(3), .vocab-table td:nth-child(3) { display: none; }
  .vocab-table td, .vocab-table th { padding: 10px 8px; }
  .vocab-known { width: 30px; }
}
.vocab-syn-wrap { display:flex; flex-direction:column; gap:5px; }
.vocab-syn-row  { display:flex; align-items:center; gap:6px; flex-wrap:wrap; }
.vocab-syn-lbl  { font-size:9px; font-weight:700; letter-spacing:1.5px; text-transform:uppercase; color:var(--text3); min-width:44px; }
.vocab-syn-tag  { font-size:13px; background:var(--bg3); border:1px solid var(--line2); border-radius:10px; padding:3px 12px; color:var(--text2); }
.vocab-known       { width: 40px; text-align: center; }
.mastery-pips      { display:flex; gap:3px; justify-content:center; align-items:center; }
.mastery-pip       { width:7px; height:7px; border-radius:50%; background:var(--bg3); border:1px solid var(--line2); transition:background .2s; }
.mastery-pip.filled { background:var(--ac); border-color:var(--ac); box-shadow: 0 0 8px color-mix(in srgb, var(--ac) 40%, transparent); }
.vocab-row-mastered td { opacity:.45; }
.vocab-row-mastered .mastery-pip.filled { background:var(--ac); }

/* ── VOCAB MASTERED SCREEN ── */
.vocab-mastered-screen { text-align:center; padding:40px 16px; }
.vocab-mastered-icon   { font-size:52px; margin-bottom:16px; }
.vocab-mastered-title  { font-size:32px; font-weight:900; letter-spacing:3px; color:#fff; margin-bottom:10px; }
.vocab-mastered-msg    { font-size:14px; color:var(--text2); line-height:1.6; margin-bottom:28px; }
.vocab-mastered-btns   { display:flex; flex-direction:column; gap:10px; max-width:320px; margin:0 auto; }

/* ── QUIZ ANIMATIONEN ── */
@keyframes flashGreen { 0%{background:var(--bg1)} 35%{background:rgba(30,132,73,.2)} 100%{background:var(--bg1)} }
@keyframes flashRed   { 0%{background:var(--bg1)} 35%{background:rgba(192,57,43,.2)} 100%{background:var(--bg1)} }
@keyframes scorePop   { 0%{transform:scale(1)} 50%{transform:scale(1.4);color:var(--xp)} 100%{transform:scale(1)} }
@keyframes xpCount    { from{opacity:.6;transform:translateY(4px)} to{opacity:1;transform:none} }
@keyframes flyUp      { 0%{opacity:0;transform:translate(-50%, 0) scale(0.6)} 20%{opacity:1;transform:translate(-50%, -20px) scale(1.2)} 80%{opacity:1;transform:translate(-50%, -80px) scale(1)} 100%{opacity:0;transform:translate(-50%, -100px) scale(0.8)} }
@keyframes pulse      { 0%{opacity:0.4} 50%{opacity:1} 100%{opacity:0.4} }
.pulsing { animation: pulse 1.5s infinite ease-in-out; }

@keyframes confettiDrop { 0%{transform:translateY(0) rotate(0deg); opacity: 1;} 100%{transform:translateY(100vh) rotate(720deg); opacity: 0;} }

.task-area.flash-correct { animation: flashGreen .65s ease; }
.task-area.flash-wrong   { animation: flashRed   .65s ease; }
.score-pop { animation: scorePop .45s cubic-bezier(.4,2,.55,.9); display:inline-block; }

.floating-xp { position: fixed; pointer-events: none; z-index: 9999; font-size: 26px; font-weight: 900; color: var(--xp); text-shadow: 0 0 15px rgba(226,183,20,0.6); animation: flyUp 1.2s cubic-bezier(0,0,.2,1) forwards; }
.confetti { position: absolute; width: 8px; height: 16px; top: -20px; z-index: 10000; animation: confettiDrop 4s ease-in forwards; }

/* Level-Up Overlay */
.levelup-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,.85);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  animation: fadeUp .4s ease;
}
.levelup-inner { text-align: center; }
.levelup-icon  { font-size: 64px; margin-bottom: 16px; animation: scorePop .6s ease .2s both; }
.levelup-label { font-size: 13px; letter-spacing: 4px; text-transform: uppercase; color: var(--text3); margin-bottom: 8px; }
.levelup-name  { font-size: 40px; font-weight: 700; color: var(--xp); letter-spacing: -1px; }
.levelup-sub   { font-size: 15px; color: var(--text2); margin-top: 10px; }

/* ── LOADING / FEHLER ── */
.loading { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; min-height: 200px; }
.spinner { width: 26px; height: 26px; border: 2px solid var(--line2); border-top-color: var(--text3); border-radius: 50%; animation: spin .7s linear infinite; }
.loading p { font-size: 11px; letter-spacing: 3px; text-transform: uppercase; color: var(--text3); }
.err-area { text-align: center; padding: 36px 0; }
.err-area p { font-size: 14px; color: var(--m); margin-bottom: 16px; }
.btn-retry { font-size: 12px; letter-spacing: 3px; text-transform: uppercase; color: var(--text2); border: 1px solid var(--line2); border-radius: var(--r); padding: 10px 16px; transition: all .15s; }
.btn-retry:hover { background: var(--bg2); color: var(--text); }

/* ── TOAST ── */
.xp-toast { position: fixed; bottom: 26px; right: 16px; z-index: 998; background: var(--bg2); border: 1px solid var(--xp); border-radius: var(--r); padding: 12px 18px; display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 700; color: var(--xp); transform: translateY(80px); opacity: 0; transition: all .35s cubic-bezier(.4,0,.2,1); pointer-events: none; }
.xp-toast.show { transform: translateY(0); opacity: 1; }

/* ── UPDATE TOAST (PWA) ── */
.update-toast {
  position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%) translateY(100px);
  z-index: 11000; background: var(--bg3); border: 1px solid var(--xp);
  border-radius: var(--r); padding: 14px 20px; display: flex; align-items: center;
  gap: 16px; box-shadow: 0 10px 40px rgba(0,0,0,0.6);
  opacity: 0; transition: all .45s cubic-bezier(.4,1,.2,1);
  pointer-events: all; width: calc(100% - 40px); max-width: 400px;
  justify-content: space-between;
}
.update-toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.update-text { font-size: 13px; font-weight: 700; color: #fff; letter-spacing: 0.5px; }
.update-btn {
  background: var(--xp); color: var(--bg); border: none;
  padding: 8px 14px; border-radius: 6px; font-size: 11px; font-weight: 800;
  letter-spacing: 1px; cursor: pointer; text-transform: uppercase;
  flex-shrink: 0;
}
.update-btn:active { transform: scale(0.95); }

/* ── LISTENING ── */
#btn-replay, #btn-to-questions { display: none; }

/* ── UTILS ── */
@keyframes spin   { to { transform: rotate(360deg); } }
@keyframes fadeUp { from { opacity:0; transform:translateY(8px); } to { opacity:1; } }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line2); border-radius: 2px; }

/* ── ERKLÄRUNG IM SCREEN ── */
.expl-inline-sec {
  border-radius: var(--r); overflow: hidden;
  margin-bottom: 12px; border: 1px solid;
}
.expl-inline-head {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 16px; font-size: 12px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase;
}
.expl-inline-body {
  padding: 14px 16px; font-size: 15px;
  line-height: 1.75; color: var(--text2);
}
.expl-inline-body p { margin-bottom: 8px; }
.expl-inline-formula {
  background: #0a0a0a; border-radius: 4px;
  padding: 10px 14px; font-family: var(--mono);
  font-size: 14px; color: var(--text);
  margin: 8px 0; border: 1px solid var(--line2);
}
.expl-inline-examples {
  margin-top: 10px; padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,.07);
}
.expl-inline-examples li {
  margin: 5px 0 5px 18px; font-size: 14px; color: var(--text2);
}
.expl-exam-box {
  background: rgba(226,183,20,.08);
  border: 1px solid rgba(226,183,20,.35);
  border-radius: var(--r); padding: 14px 16px; margin-bottom: 16px;
}
.expl-exam-lbl {
  font-size: 10px; font-weight: 700; letter-spacing: 3px;
  text-transform: uppercase; color: var(--xp); margin-bottom: 6px;
}
.expl-exam-box p { font-size: 14px; line-height: 1.7; color: var(--text2); }
.expl-vocab-lbl {
  font-size: 10px; font-weight: 700; letter-spacing: 4px;
  text-transform: uppercase; color: var(--text3);
  margin: 18px 0 10px; padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

/* ── DEBUG-KONSOLE (nur raumfish) ── */
#debug-panel {
  position: fixed; bottom: 0; left: 0; right: 0;
  height: 180px; background: #0d0d0d;
  border-top: 2px solid #e2b714;
  z-index: 9999; font-family: var(--mono);
  display: flex; flex-direction: column;
}
#debug-header {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 10px; background: #1a1a00;
  border-bottom: 1px solid #333;
  font-size: 11px; font-weight: 700;
  letter-spacing: 2px; color: #e2b714;
}
#debug-header span { flex: 1; }
#debug-header button {
  background: none; border: 1px solid #333;
  color: #888; padding: 2px 6px; border-radius: 3px;
  cursor: pointer; font-size: 11px; font-family: var(--mono);
}
#debug-header button:hover { border-color: #e2b714; color: #e2b714; }
#debug-log {
  flex: 1; overflow-y: auto; padding: 6px 10px;
  font-size: 11px; line-height: 1.6;
}
#debug-log .dl { margin: 1px 0; }
#debug-log .dl-time { color: #555; }
#debug-log .dl-info  { color: #5dade2; }
#debug-log .dl-ok    { color: #58d68d; }
#debug-log .dl-warn  { color: #e2b714; }
#debug-log .dl-err   { color: #ec7063; }

/* ── MAIN VIEWS (ersetzt tab-content + train-view) ── */
#main-content .main-view { display: none !important; }
#main-content .main-view.active { display: block !important; }

/* ── KACHELN STATS ── */
.subj-stats-row { display:flex; align-items:center; gap:4px; margin:4px 0 6px; flex-wrap:wrap; }
.subj-stat { font-size:11px; color:var(--text3); font-family:var(--mono); }
.subj-stat-sep { font-size:11px; color:var(--line2); }

/* ── TOPBAR ohne Nav-Buttons ── */
.topbar-nav { display: none; }

/* ── DEBUG PANEL zweigeteilt ── */
#debug-header button.active { color: var(--xp); border-color: var(--xp); }
#debug-body { display: flex; flex: 1; overflow: hidden; }
#debug-log-pane { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
#debug-log { flex: 1; overflow-y: auto; padding: 6px 10px; font-size: 11px; line-height: 1.6; }
#debug-admin-pane { flex: 1; overflow-y: auto; padding: 8px; }
#debug-panel { height: 220px; }

/* ── ADMIN PANEL ── */
.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; height: 100%; }
.admin-col { display: flex; flex-direction: column; gap: 6px; }
.admin-section-title { font-size: 9px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--text3); margin-bottom: 4px; }
.admin-events { display: flex; flex-direction: column; gap: 4px; }
.admin-btn { background: var(--bg2); border: 1px solid var(--line); color: var(--text2); padding: 5px 8px; border-radius: 3px; cursor: pointer; font-size: 11px; font-family: var(--mono); text-align: left; transition: border-color .1s; }
.admin-btn:hover { border-color: var(--xp); color: var(--xp); }
.admin-btn-danger:hover { border-color: var(--m); color: var(--m); }
.admin-field { display: flex; flex-direction: column; gap: 3px; }
.admin-field label { font-size: 10px; color: var(--text3); letter-spacing: 1px; }
.admin-input-row { display: flex; gap: 4px; }
.admin-input-row input { flex: 1; background: var(--bg3); border: 1px solid var(--line); color: var(--text); padding: 4px 6px; border-radius: 3px; font-size: 12px; font-family: var(--mono); }
.admin-input-row button { background: var(--bg2); border: 1px solid var(--line); color: var(--text2); padding: 4px 8px; border-radius: 3px; cursor: pointer; font-size: 11px; font-family: var(--mono); }
.admin-input-row button:hover { border-color: var(--xp); color: var(--xp); }

/* ── KATEX MATH RENDERING ── */
.katex { font-size: 1.05em; color: var(--text); }
.katex-display { margin: 10px 0; overflow-x: auto; overflow-y: hidden; }
.katex-display > .katex { text-align: left; }
/* Brüche gut lesbar */
.katex .frac-line { border-color: var(--text2); }
/* Inline-Math nicht zu groß */
.task-q .katex { font-size: 1.0em; }
/* Display-Math zentriert in Aufgaben */
.task-q .katex-display { text-align: center; }

/* ── MATHE SCHRITTMODUS ── */
.steps-container { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }

.step-row {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 14px; border-radius: var(--r);
  border: 1px solid var(--line);
}
.step-active  { background: var(--bg2); border-color: var(--xp); }
.step-done    { background: var(--bg2); opacity: 0.9; }
.step-ok      { border-color: #27ae60; }
.step-err     { border-color: #c0392b; }
.step-pending { background: var(--bg3); opacity: 0.45; }

.step-num {
  min-width: 24px; height: 24px; border-radius: 50%;
  background: var(--bg3); color: var(--text3);
  font-size: 11px; font-weight: 700; font-family: var(--mono);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 1px;
}
.step-active .step-num { background: var(--xp); color: var(--bg); }
.step-ok  .step-num    { background: #27ae60; color: #fff; }
.step-err .step-num    { background: #c0392b; color: #fff; }

.step-body { flex: 1; }
.step-instr { font-size: 14px; color: var(--text); margin-bottom: 6px; line-height: 1.5; }
.step-hint  { font-size: 12px; color: var(--text3); margin-bottom: 8px; font-style: italic; }

.step-input {
  width: 100%; background: var(--bg3); border: 1px solid var(--line2);
  color: var(--text); padding: 10px 12px; border-radius: 5px;
  font-size: 15px; font-family: var(--mono);
  transition: border-color .15s; resize: vertical;
  min-height: 60px; line-height: 1.5;
}
.step-input:focus { outline: none; border-color: var(--xp); }

.step-answer-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
.step-user-ans   { font-family: var(--mono); font-size: 14px; color: var(--text2); }
.step-wrong-ans  { color: #e74c3c; text-decoration: line-through; }
.step-correct-ans { font-family: var(--mono); font-size: 14px; color: #58d68d; font-weight: 600; }

.step-icon { font-size: 16px; flex-shrink: 0; margin-top: 2px; }
.step-ok  .step-icon { color: #27ae60; }
.step-err .step-icon { color: #c0392b; }

/* ── PWA INSTALL BANNER ── */
#install-banner {
  position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 10000; padding: 12px 16px;
  background: var(--bg2); border-top: 1px solid var(--line2);
  animation: slideUp .3s ease;
}
@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
#install-banner-inner {
  max-width: 600px; margin: 0 auto;
  display: flex; align-items: center; gap: 12px;
}
.install-text { flex: 1; }
.install-title { font-size: 14px; font-weight: 700; color: var(--text); }
.install-sub   { font-size: 11px; color: var(--text3); margin-top: 1px; }
.install-btn-yes {
  background: var(--xp); color: var(--bg); border: none;
  padding: 8px 16px; border-radius: var(--r);
  font-size: 12px; font-weight: 700; letter-spacing: 1px;
  cursor: pointer; white-space: nowrap;
}
.install-btn-no {
  background: none; border: none; color: var(--text3);
  font-size: 16px; cursor: pointer; padding: 4px 8px;
  flex-shrink: 0;
}

/* ── INSTALL CARD (Dashboard) ── */
.install-card {
  margin: 24px 0 8px;
  background: var(--bg2); border: 1px solid var(--line2);
  border-radius: var(--r); padding: 16px;
}
.install-card-inner {
  display: flex; gap: 14px; align-items: flex-start; margin-bottom: 14px;
}
.install-card-text { flex: 1; }
.install-card-title { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 3px; }
.install-card-sub   { font-size: 12px; color: var(--text3); line-height: 1.4; }
.install-hint {
  margin-top: 8px; font-size: 12px; color: var(--text2);
  background: var(--bg3); border-radius: 5px; padding: 8px 10px;
  line-height: 1.5;
}
.install-hint strong { color: var(--text); }
.install-card-btns { display: flex; gap: 8px; }

.level-path { display:flex; align-items:flex-end; gap:4px; margin-bottom:8px; }
.level-step { display:flex; flex-direction:column; align-items:center; gap:4px; flex:1; opacity:.2; filter:grayscale(1); transition:all .3s; }
.level-step.reached { opacity:.45; filter:grayscale(.4); }
.level-step.current { opacity:1; filter:none; flex:1.5; }
.level-step-icon { width:100%; max-width:72px; height:auto; display:block; }
.level-step-name { font-size:9px; letter-spacing:1.5px; font-weight:700; color:var(--text3); text-align:center; white-space:nowrap; }
.level-step.current .level-step-name { color:var(--xp); }
/* ── BRAND USERNAME ── */
.brand-title-wrap { display:flex; flex-direction:column; line-height:1.1; }
.brand-username { font-size:10px; font-weight:700; letter-spacing:2px; color:var(--xp); margin-top:1px; }

/* ── LEVEL ICONS überschreiben ── */
.level-step { display:flex; flex-direction:column; align-items:center; gap:4px; flex:0.65; opacity:.2; filter:grayscale(1); transition:all .3s; }
.level-step.reached { opacity:.45; filter:grayscale(.4); }
.level-step.current { opacity:1; filter:none; flex:2; }
.level-step-icon { width:100%; max-width:44px; height:auto; display:block; }
.level-step.current .level-step-icon { max-width:80px; }
.level-step-name { font-size:9px; letter-spacing:1.5px; font-weight:700; color:var(--text3); text-align:center; white-space:nowrap; }
.level-step.current .level-step-name { color:var(--xp); }

/* ── INSTALL CARD (neu) ── */
.install-card-header { display:flex; gap:12px; align-items:center; margin-bottom:12px; }
.install-card-title  { font-size:14px; font-weight:700; color:var(--text); }
.install-card-sub    { font-size:11px; color:var(--text3); margin-top:2px; }
.install-steps { display:flex; flex-direction:column; gap:8px; }
.install-step  { display:flex; align-items:flex-start; gap:10px; font-size:13px; color:var(--text2); line-height:1.4; }
.install-step strong { color:var(--text); }
.install-step-n {
  min-width:22px; height:22px; border-radius:50%;
  background:var(--xp); color:var(--bg);
  font-size:11px; font-weight:700;
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0; margin-top:1px;
}

/* dash-name mit gelbem Punkt */
.dash-name .brand-dot { color:var(--xp); }

/* ══════════════════════════════════════════════════════════════
   BENTO — Fachseiten Design
   ══════════════════════════════════════════════════════════════ */

.bento-subject-wrap { padding-bottom: 24px; }

/* ── Hero-Tile ── */
.bento-hero {
  position: relative; overflow: hidden;
  border-radius: 16px; padding: 28px 22px;
  background: var(--bg2); border: 1px solid var(--line2);
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
  min-height: 130px;
}
.bento-hero-glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 55% 80% at 15% 50%, color-mix(in srgb, var(--subj-col) 18%, transparent), transparent 70%);
}
.bento-hero::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--subj-col); border-radius: 16px 16px 0 0;
}
.bento-hero-content { position: relative; z-index: 1; }
.bento-hero-label {
  font-size: 10px; font-weight: 700; letter-spacing: 4px;
  text-transform: uppercase; color: var(--subj-col);
  opacity: .8; margin-bottom: 6px;
}
.bento-hero-title {
  font-size: 26px; font-weight: 800; letter-spacing: -0.5px;
  color: #fff; line-height: 1.1; margin-bottom: 6px;
}
.bento-hero-sub {
  font-size: 12px; color: var(--text3);
  font-family: var(--mono); letter-spacing: 1px;
}

/* SVG Progress Ring */
.bento-hero-ring {
  position: relative; width: 80px; height: 80px; flex-shrink: 0;
  z-index: 1;
}
.bento-hero-ring svg { width: 80px; height: 80px; position: absolute; inset: 0; }
.bento-ring-inner {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.bento-ring-val {
  font-size: 18px; font-weight: 800; color: #fff;
  font-family: var(--mono); line-height: 1;
}
.bento-ring-lbl {
  font-size: 9px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--text3); margin-top: 2px;
}

/* ── Stats-Row ── */
.bento-stats-row {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px;
  margin-bottom: 20px;
}
.bento-stat-card {
  background: var(--bg1); border: 1px solid var(--line);
  border-radius: 12px; padding: 14px 12px;
  display: flex; flex-direction: column; gap: 4px;
  text-align: center;
}
.bento-stat-val {
  font-family: var(--mono); font-size: 20px; font-weight: 800;
  color: var(--text); line-height: 1;
}
.bento-stat-of { font-size: 13px; color: var(--text3); font-weight: 400; }
.bento-stat-lbl {
  font-size: 9px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--text3);
}

/* ── Gruppen-Label ── */
.bento-group { margin-bottom: 20px; }
.bento-group-label {
  font-size: 10px; font-weight: 700; letter-spacing: 3px;
  text-transform: uppercase; color: var(--text3);
  padding: 0 4px 10px; border-bottom: 1px solid var(--line);
  margin-bottom: 10px;
}

/* ── Topic Bento Grid ── */
.bento-topic-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* ── Einzelne Karte ── */
.bento-topic-card {
  background: var(--bg1); border: 1px solid var(--line);
  border-radius: 14px; padding: 16px 14px;
  display: flex; flex-direction: column; gap: 8px;
  text-align: left; cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease, background .18s ease;
  position: relative; overflow: hidden;
}
.bento-topic-card::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 50% at 0% 0%, color-mix(in srgb, var(--subj-col) 10%, transparent), transparent 65%);
  opacity: 0; transition: opacity .2s;
  pointer-events: none;
}
.bento-topic-card:hover { background: var(--bg2); border-color: var(--subj-col); transform: translateY(-2px); box-shadow: 0 8px 24px color-mix(in srgb, var(--subj-col) 12%, transparent); }
.bento-topic-card:hover::before { opacity: 1; }
.bento-topic-card:active { transform: scale(.97) translateY(0); }

/* Status-Varianten */
.bento-card--mastered { border-color: rgba(88,214,141,.25); }
.bento-card--mastered:hover { border-color: #58d68d; box-shadow: 0 8px 24px rgba(88,214,141,.12); }
.bento-card--weak { border-color: rgba(192,57,43,.25); }

.bento-card-top {
  display: flex; align-items: center; justify-content: space-between; gap: 6px;
}
.bento-card-mode {
  font-size: 10px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--text3);
  font-family: var(--mono);
}
.bento-card-name {
  font-size: 14px; font-weight: 700; color: var(--text);
  line-height: 1.35; flex: 1;
}
.bento-card-stats {
  font-size: 11px; color: var(--text3);
  font-family: var(--mono); margin-top: -2px;
}

/* Fortschrittsbalken */
.bento-card-bar {
  height: 3px; background: var(--bg3);
  border-radius: 2px; overflow: hidden; margin-top: 2px;
}
.bento-card-bar-fill {
  height: 3px; border-radius: 2px;
  transition: width .5s ease;
}

/* ── Badges ── */
.bento-badge {
  font-size: 9px; font-weight: 800; letter-spacing: 1px;
  text-transform: uppercase; border-radius: 6px;
  padding: 2px 7px; background: var(--bg3);
  color: var(--text3); border: 1px solid var(--line2);
  white-space: nowrap; flex-shrink: 0;
}
.bento-badge--new {
  background: color-mix(in srgb, var(--xp) 15%, transparent);
  color: var(--xp); border-color: color-mix(in srgb, var(--xp) 35%, transparent);
}
.bento-badge--mastered {
  background: rgba(88,214,141,.12);
  color: #58d68d; border-color: rgba(88,214,141,.3);
}

/* ── Bento-Style Action Button ── */
@keyframes bento-border-rotate {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.btn-bento-primary {
  width: 100%;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
  cursor: pointer;
  transition: all .24s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  margin-bottom: 24px;
  text-transform: uppercase;
}
/* Der rotierende Schein-Effekt */
.btn-bento-primary::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 200%; height: 200%;
  background: conic-gradient(
    from 0deg,
    transparent 0%,
    transparent 30%,
    var(--subj-col, var(--xp)) 50%,
    transparent 70%,
    transparent 100%
  );
  transform: translate(-50%, -50%) rotate(0deg);
  animation: bento-border-rotate 4s linear infinite;
  z-index: 0;
  opacity: 0.5;
  pointer-events: none;
}
/* Das innere Overlay hält den Button dunkel und lässt nur den Rand frei */
.btn-bento-primary::before {
  content: ''; position: absolute; inset: 2px;
  background: var(--bg1);
  border-radius: 14px;
  z-index: 1;
  transition: background .2s;
}
.btn-bento-primary:hover::before { background: var(--bg2); }
.btn-bento-primary:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 35px color-mix(in srgb, var(--subj-col, var(--xp)) 20%, transparent);
  border-color: rgba(255,255,255,0.1);
}
.btn-bento-primary:hover::after { opacity: 1; animation-duration: 2.5s; }
.btn-bento-primary:active { transform: scale(.97) translateY(0); }
.btn-bento-primary svg, .btn-bento-primary span { 
  position: relative; z-index: 2; 
}
.btn-bento-primary svg { 
  filter: drop-shadow(0 0 10px var(--subj-col, var(--xp)));
  color: var(--subj-col, var(--xp));
}