/* Lernkarten – helles, freundliches Lern-Design: Papier, Karteikarten, Textmarker */
:root {
  --bg: #F6F2E9; --bg2: #EFEADF; --card: #FFFFFF; --card2: #FBF8F2; --card3: #F3EEE4;
  --line: rgba(60,48,20,.10); --line2: rgba(60,48,20,.17);
  --txt: #22252E; --dim: #6B6F7A; --dim2: #9A9CA4;
  --acc: #17A673; --acc2: #0F8C60; --accInk: #FFFFFF; --glow: rgba(23,166,115,.12);
  --ok: #17A673; --okGlow: rgba(23,166,115,.12);
  --amber: #E39B12; --amberGlow: rgba(227,155,18,.14);
  --coral: #EC5B45; --coralGlow: rgba(236,91,69,.11);
  --sky: #3B82F6; --skyGlow: rgba(59,130,246,.11);
  --marker: #FFE066; --rule: rgba(59,130,246,.13); --margin: rgba(236,91,69,.45);
  --track: rgba(60,48,20,.09);
  --shadow: 0 1px 0 rgba(60,48,20,.06), 0 8px 24px rgba(60,48,20,.07);
  --shadow-lg: 0 2px 0 rgba(60,48,20,.05), 0 18px 40px rgba(60,48,20,.10);
  --r-xl: 28px; --r-lg: 22px; --r-md: 16px;
  --hand: "Caveat", "Segoe Print", cursive;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #16171B; --bg2: #111215; --card: #202227; --card2: #25282E; --card3: #2C2F36;
  --line: rgba(255,255,255,.08); --line2: rgba(255,255,255,.14);
  --txt: #EEEDE9; --dim: #A3A4A9; --dim2: #74767D;
  --acc: #3CCB93; --acc2: #27B07B; --accInk: #0C2419; --glow: rgba(60,203,147,.14);
  --ok: #3CCB93; --okGlow: rgba(60,203,147,.14);
  --amber: #F2B642; --amberGlow: rgba(242,182,66,.14);
  --coral: #F27A66; --coralGlow: rgba(242,122,102,.14);
  --sky: #6AA5FF; --skyGlow: rgba(106,165,255,.14);
  --marker: rgba(255,224,102,.35); --rule: rgba(106,165,255,.10); --margin: rgba(242,122,102,.4);
  --track: rgba(255,255,255,.08);
  --shadow: 0 1px 0 rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
  --shadow-lg: 0 2px 0 rgba(0,0,0,.3), 0 18px 40px rgba(0,0,0,.35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--txt); }
html { overflow-x: hidden; }
body {
  font-family: Nunito, ui-rounded, "SF Pro Rounded", system-ui, -apple-system, sans-serif;
  font-size: 15.5px; line-height: 1.55; -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums; min-height: 100vh; min-height: 100dvh; overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
  background-image: radial-gradient(var(--line) 1px, transparent 1px); background-size: 22px 22px;
}
a { color: var(--acc2); text-decoration: none; font-weight: 700; }
a:hover { color: var(--acc); }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3 { margin: 0; letter-spacing: -.02em; line-height: 1.15; font-weight: 900; }
h1 { font-size: clamp(27px, 5vw, 42px); text-wrap: balance; }
h2 { font-size: 21px; }
h3 { font-size: 16.5px; font-weight: 800; }
p { margin: 0; }
code { font-size: .9em; background: var(--card3); padding: 1px 6px; border-radius: 6px; }
kbd { font-size: 12px; padding: 1px 7px; border: 1px solid var(--line2); border-bottom-width: 3px; border-radius: 7px; background: var(--card); font-weight: 800; }
.muted { color: var(--dim); }
.faint { color: var(--dim2); }
.small { font-size: 13px; }
.pad { padding: 24px 0; }
.eyebrow { font-size: 12px; font-weight: 900; letter-spacing: .09em; text-transform: uppercase; color: var(--acc2); }
.eyebrow.dim { color: var(--dim2); }
.hand { font-family: var(--hand); font-weight: 700; font-size: 1.35em; letter-spacing: 0; text-transform: none; }
.mark { background: linear-gradient(transparent 55%, var(--marker) 55%, var(--marker) 92%, transparent 92%); padding: 0 .08em; border-radius: 3px; }
svg.ic { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Kopfzeile ---------- */
.top {
  position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 14px;
  padding: 12px max(22px, env(safe-area-inset-right)) 12px max(22px, env(safe-area-inset-left));
  padding-top: max(12px, env(safe-area-inset-top));
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--txt); font-weight: 900; letter-spacing: -.02em; font-size: 18px; }
.brand:hover { color: var(--txt); }
.logo { width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center; background: var(--acc); color: #fff; box-shadow: 0 3px 0 var(--acc2); transform: rotate(-4deg); }
.logo svg { width: 19px; height: 19px; }
.brand small { font-family: var(--hand); font-size: 20px; color: var(--dim); font-weight: 700; margin-left: 2px; }
.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a { display: flex; align-items: center; gap: 7px; padding: 8px 14px; border-radius: 12px; color: var(--dim); font-weight: 800; font-size: 14px; }
.nav a:hover { color: var(--txt); background: var(--card); }
.nav a.active { color: var(--acc2); background: var(--glow); }
.icon-btn { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; cursor: pointer; padding: 0; border: 1px solid var(--line2); background: var(--card); color: var(--dim); }
.icon-btn:hover { color: var(--acc2); border-color: var(--acc); }

main { max-width: 1060px; margin: 0 auto; padding: 30px 22px 80px; outline: none; }
main > * { animation: fadeUp .35s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.tabbar { display: none; }
@media (max-width: 720px) {
  .nav { display: none; }
  .brand small { display: none; }
  .top { padding-left: 16px; padding-right: 16px; }
  .top .spacer { flex: 1; }
  main { padding: 20px 16px calc(106px + env(safe-area-inset-bottom)); }
  .tabbar {
    display: grid; grid-template-columns: repeat(4, 1fr); position: fixed; z-index: 30;
    left: 12px; right: 12px; bottom: calc(10px + env(safe-area-inset-bottom)); padding: 6px; border-radius: 22px;
    border: 1px solid var(--line2); background: color-mix(in oklab, var(--card) 92%, transparent);
    backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); box-shadow: var(--shadow-lg);
  }
  .tabbar a { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 8px 4px; border-radius: 16px; color: var(--dim); font-size: 11.5px; font-weight: 800; }
  .tabbar a svg { width: 22px; height: 22px; }
  .tabbar a.active { color: var(--acc2); background: var(--glow); }
  body.learning .tabbar { display: none; }
  body.learning main { padding-bottom: calc(24px + env(safe-area-inset-bottom)); }
}
@media (min-width: 721px) { .top .spacer { display: none; } }

/* ---------- Buttons (3D-Druckknöpfe) ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; min-height: 44px;
  border-radius: 14px; cursor: pointer; border: 2px solid var(--line2); background: var(--card); color: var(--txt);
  font-weight: 800; font-size: 14.5px; box-shadow: 0 3px 0 var(--line2); transition: transform .08s, box-shadow .08s, filter .15s;
}
.btn:hover { color: var(--txt); filter: brightness(.98); }
.btn:active { transform: translateY(3px); box-shadow: 0 0 0 var(--line2); }
.btn.primary { background: var(--acc); color: #fff; border-color: var(--acc); box-shadow: 0 4px 0 var(--acc2); }
.btn.primary:hover { color: #fff; filter: brightness(1.05); }
.btn.primary:active { box-shadow: 0 0 0 var(--acc2); transform: translateY(4px); }
.btn.big { padding: 14px 24px; min-height: 56px; font-size: 16.5px; border-radius: 16px; }
.btn.ghost { background: transparent; border-color: transparent; box-shadow: none; color: var(--dim); }
.btn.ghost:hover { color: var(--txt); background: var(--card); }
.btn.danger { color: var(--coral); }
.btn[disabled], .btn[aria-disabled] { opacity: .45; pointer-events: none; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* ---------- Flächen ---------- */
.panel { border: 1px solid var(--line); background: var(--card); border-radius: var(--r-lg); padding: 22px; box-shadow: var(--shadow); }
.section { margin-top: 22px; }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; margin: 38px 0 14px; flex-wrap: wrap; }
.sec-head .eyebrow { display: block; margin-bottom: 4px; }

/* Heute-Karte */
.hero {
  position: relative; overflow: hidden; border-radius: var(--r-xl); border: 1px solid var(--line);
  background: var(--card); box-shadow: var(--shadow-lg);
  display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(220px, .7fr); gap: 28px; padding: 34px; align-items: center;
}
.hero > * { position: relative; z-index: 1; }
.hero-main { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.hero-sub { color: var(--dim); font-size: 16px; max-width: 34em; text-wrap: pretty; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.stat-chip { display: inline-flex; align-items: center; gap: 7px; padding: 7px 13px; border-radius: 99px; font-weight: 800; font-size: 13.5px; background: var(--card3); color: var(--txt); }
.stat-chip svg { width: 16px; height: 16px; }
.stat-chip.amber { background: var(--amberGlow); color: var(--amber); }
.stat-chip.sky { background: var(--skyGlow); color: var(--sky); }
.stat-chip.ok { background: var(--okGlow); color: var(--acc2); }
.stat-chip.coral { background: var(--coralGlow); color: var(--coral); }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 8px; }
.hero-side { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.goal-note { font-family: var(--hand); font-size: 22px; color: var(--dim); text-align: center; line-height: 1.1; transform: rotate(-2deg); }

.gauge { position: relative; width: 190px; height: 190px; flex: none; }
.gauge svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.gauge circle { transition: stroke-dasharray .6s ease; }
.gauge .center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.gauge .center b { font-size: 46px; font-weight: 900; letter-spacing: -.03em; line-height: 1; }
.gauge .center b small { font-size: 20px; color: var(--dim2); font-weight: 800; }
.gauge .center span { font-size: 12px; font-weight: 800; color: var(--dim); margin-top: 4px; }

/* Fach-Hefte */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.deck {
  position: relative; display: flex; flex-direction: column; gap: 14px; padding: 20px 20px 18px 26px; overflow: hidden;
  border-radius: var(--r-lg); border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow);
  color: var(--txt); font-weight: 400; transition: transform .15s, box-shadow .15s;
}
.deck::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 8px; background: var(--hue, var(--acc)); }
.deck:hover { color: var(--txt); transform: translateY(-3px) rotate(-.3deg); box-shadow: var(--shadow-lg); }
.deck .d-top { display: flex; align-items: center; gap: 12px; min-width: 0; }
.deck .d-top > div { min-width: 0; flex: 1; }
.badge {
  width: 44px; height: 44px; border-radius: 14px; flex: none; display: grid; place-items: center;
  font-size: 12px; font-weight: 900; letter-spacing: .02em;
  background: color-mix(in oklab, var(--hue, var(--acc)) 16%, var(--card)); color: color-mix(in oklab, var(--hue, var(--acc)) 80%, var(--txt));
}
.deck h3 { text-wrap: balance; }
.deck .who { font-size: 12.5px; color: var(--dim2); margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 600; }
.deck .nums { display: flex; align-items: flex-end; gap: 8px; }
.deck .nums .big { font-size: 34px; font-weight: 900; letter-spacing: -.03em; line-height: 1; }
.deck .nums .unit { font-size: 13px; color: var(--dim); padding-bottom: 3px; font-weight: 700; }
.deck .nums .right { margin-left: auto; text-align: right; font-size: 12.5px; color: var(--dim); line-height: 1.5; font-weight: 600; }
.deck .foot { display: flex; justify-content: space-between; gap: 8px; font-size: 12.5px; color: var(--dim); font-weight: 600; }
.deck.empty { box-shadow: none; background: var(--card2); border-style: dashed; }
.deck.compact { padding: 15px 16px 14px 22px; gap: 10px; box-shadow: none; }
.deck.compact::before { width: 6px; }
.deck.compact .badge { width: 38px; height: 38px; border-radius: 12px; font-size: 11px; }
.deck.compact h3 { font-size: 15px; }

.pill { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border-radius: 99px; font-size: 12px; font-weight: 800; background: var(--card3); color: var(--dim); white-space: nowrap; }
.pill.due { background: var(--amberGlow); color: var(--amber); }
.pill.exam { background: var(--coralGlow); color: var(--coral); }
.pill.ok { background: var(--okGlow); color: var(--acc2); }
.pill.acc { background: var(--skyGlow); color: var(--sky); }
.dot { width: 8px; height: 8px; border-radius: 99px; background: currentColor; display: inline-block; }

.bar { height: 10px; border-radius: 99px; background: var(--track); overflow: hidden; display: flex; }
.bar i { display: block; height: 100%; }
.bar .b-known { background: var(--ok); }
.bar .b-learning { background: var(--amber); }

.archive { margin-top: 12px; }
.archive > summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 14px; padding: 16px 20px;
  border-radius: var(--r-lg); border: 1px dashed var(--line2); background: var(--card2);
}
.archive > summary::-webkit-details-marker { display: none; }
.archive > summary .chev { margin-left: auto; transition: transform .2s; color: var(--dim); }
.archive[open] > summary .chev { transform: rotate(90deg); }
.archive .inner { padding: 4px 0 0; }
.sem-label { font-size: 12px; font-weight: 900; letter-spacing: .09em; text-transform: uppercase; color: var(--dim2); margin: 20px 2px 10px; }

.note { display: flex; gap: 12px; align-items: flex-start; padding: 14px 18px; border-radius: var(--r-md); border: 1px solid var(--line); background: var(--card2); font-size: 14px; color: var(--dim); line-height: 1.6; }
.note svg { margin-top: 2px; }

/* ---------- Fachseite ---------- */
.back { display: inline-flex; align-items: center; gap: 6px; color: var(--dim); font-weight: 800; font-size: 14px; margin-bottom: 16px; }
.back:hover { color: var(--txt); }
.deck-hero { grid-template-columns: minmax(0, 1fr) auto; }
.deck-hero::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 10px; background: var(--hue); z-index: 2; }
.deck-hero .meta-row { display: flex; gap: 8px; flex-wrap: wrap; }
.mini-gauge { width: 136px; height: 136px; }
.mini-gauge .center b { font-size: 32px; }
.modes { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-top: 18px; }
.mode {
  display: flex; flex-direction: column; gap: 8px; padding: 16px; border-radius: 20px; font-weight: 400;
  border: 2px solid var(--line); background: var(--card); color: var(--txt); box-shadow: 0 4px 0 var(--line2); transition: transform .08s, box-shadow .08s;
}
.mode:hover { color: var(--txt); border-color: var(--line2); }
.mode:active { transform: translateY(4px); box-shadow: none; }
.mode .m-ic { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; background: var(--card3); color: var(--dim); }
.mode b { font-size: 15.5px; font-weight: 900; }
.mode span { font-size: 13px; color: var(--dim); font-weight: 600; }
.mode.primary { background: var(--acc); border-color: var(--acc); color: #fff; box-shadow: 0 4px 0 var(--acc2); }
.mode.primary:hover { color: #fff; }
.mode.primary span { color: rgba(255,255,255,.85); }
.mode.primary .m-ic { background: rgba(255,255,255,.2); color: #fff; }
.mode[disabled] { opacity: .45; pointer-events: none; }
.topics { display: flex; gap: 8px; flex-wrap: wrap; margin: 4px 0 16px; }
.chip { border: 2px solid var(--line); background: var(--card); color: var(--dim); padding: 7px 14px; border-radius: 99px; font-size: 13.5px; font-weight: 800; cursor: pointer; }
.chip:hover { color: var(--txt); border-color: var(--line2); }
.chip.on { background: var(--txt); color: var(--bg); border-color: var(--txt); }
.chip .n { font-size: 12px; opacity: .6; margin-left: 5px; }
.search {
  width: 100%; padding: 13px 16px 13px 44px; border-radius: 16px; border: 2px solid var(--line); background-color: var(--card); color: var(--txt);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%239a9ca4' stroke-width='2.4' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: 15px center; font-weight: 600;
}
.search:focus, .form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--acc); box-shadow: 0 0 0 4px var(--glow); }
.list { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-direction: column; gap: 8px; }
.list li { border: 1px solid var(--line); background: var(--card); border-radius: 16px; }
.list li.muted { padding: 16px; }
.list details summary { list-style: none; cursor: pointer; display: flex; gap: 12px; justify-content: space-between; align-items: flex-start; padding: 14px 16px; font-weight: 800; font-size: 14.5px; }
.list details summary::-webkit-details-marker { display: none; }
.list details[open] summary { border-bottom: 1px dashed var(--line2); }
.list .ans { padding: 12px 16px 4px; white-space: pre-line; font-size: 14.5px; }
.list .row { display: flex; justify-content: space-between; gap: 10px; padding: 8px 16px 12px; flex-wrap: wrap; align-items: center; font-weight: 600; }
.qtype { font-size: 11px; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; color: var(--dim2); margin-right: 6px; }

/* ---------- Lernen: Karteikarte ---------- */
.learn { max-width: 700px; margin: 0 auto; }
.learn-top { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.learn-top .close { flex: none; }
.progress { flex: 1; height: 14px; border-radius: 99px; background: var(--track); overflow: hidden; }
.progress i { display: block; height: 100%; background: var(--acc); border-radius: 99px; transition: width .35s ease; box-shadow: inset 0 -4px 0 rgba(0,0,0,.08); }
.learn-top .count { font-weight: 900; font-size: 14px; color: var(--dim); flex: none; }
.learn-title { font-size: 13.5px; color: var(--dim); font-weight: 700; margin: 0 0 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stack { position: relative; margin-top: 18px; perspective: 1400px; }
.stack::before, .stack::after { /* Karten dahinter */
  content: ""; position: absolute; inset: 0; border-radius: 22px; background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow);
}
.stack::before { transform: rotate(2.2deg) translate(6px, 6px); opacity: .7; }
.stack::after { transform: rotate(-1.4deg) translate(-4px, 4px); opacity: .85; }
.card {
  position: relative; z-index: 1; min-height: 360px; padding: 0; cursor: pointer; overflow: hidden;
  border-radius: 22px; border: 1px solid var(--line2); background-color: var(--card); box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column;
}
.card.flip { animation: flip .38s cubic-bezier(.3,.7,.3,1) both; }
@keyframes flip { from { transform: rotateY(-88deg); } to { transform: none; } }
.card-head { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; padding: 16px 24px 14px 56px; border-bottom: 2px solid var(--margin); background: var(--card); }
.card-body {
  position: relative; flex: 1; padding: 20px 26px 22px 56px;
  background-image: repeating-linear-gradient(transparent 0 31px, var(--rule) 31px 32px); background-position: 0 14px;
}
.card-body::before { content: ""; position: absolute; left: 40px; top: 0; bottom: 0; width: 2px; background: var(--margin); opacity: .55; }
.card-head::before { content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 5px; background: var(--hue, var(--acc)); }
.card .kicker { font-size: 12px; font-weight: 900; letter-spacing: .07em; text-transform: uppercase; color: var(--dim2); }
.card .q { font-size: clamp(21px, 3.8vw, 27px); font-weight: 900; letter-spacing: -.015em; line-height: 1.3; margin-top: 6px; text-wrap: pretty; }
.card .a { margin-top: 18px; white-space: pre-line; font-size: 17.5px; line-height: 32px; font-weight: 600; text-wrap: pretty; animation: fadeUp .3s ease both; }
.card .a-label { display: inline-block; margin-top: 22px; font-family: var(--hand); font-size: 24px; font-weight: 700; color: var(--acc2); transform: rotate(-2deg); }
.card .hint { margin-top: 34px; color: var(--dim2); font-size: 14px; display: flex; align-items: center; gap: 8px; font-weight: 700; }
.rate { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 20px; }
.rate button {
  display: flex; flex-direction: column; align-items: center; gap: 1px; padding: 11px 6px; min-height: 66px; border-radius: 16px; cursor: pointer;
  border: 2px solid var(--c); background: var(--card); color: var(--c); box-shadow: 0 4px 0 var(--c); transition: transform .08s, box-shadow .08s;
}
.rate button:hover { background: color-mix(in oklab, var(--c) 10%, var(--card)); }
.rate button:active { transform: translateY(4px); box-shadow: none; }
.rate button b { font-size: 15px; font-weight: 900; }
.rate button span { font-size: 12px; font-weight: 700; opacity: .8; }
.rate .r1 { --c: var(--coral); } .rate .r2 { --c: var(--amber); } .rate .r3 { --c: var(--acc); } .rate .r4 { --c: var(--sky); }
.reveal { width: 100%; margin-top: 20px; }
.keys { text-align: center; color: var(--dim2); font-size: 12.5px; margin-top: 18px; font-weight: 600; }
@media (hover: none) { .keys { display: none; } }
.done { text-align: center; padding: 40px 20px; }
.done .big { width: 88px; height: 88px; border-radius: 28px; margin: 0 auto 20px; display: grid; place-items: center; background: var(--acc); color: #fff; box-shadow: 0 5px 0 var(--acc2); transform: rotate(-4deg); }
.done .big svg { width: 44px; height: 44px; stroke-width: 3; }
.done .sum { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; max-width: 480px; margin: 26px auto 0; }
.done .sum div { padding: 14px 6px; border-radius: 16px; border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow); }
.done .sum b { display: block; font-size: 26px; font-weight: 900; }
.done .sum span { font-size: 12.5px; color: var(--dim); font-weight: 700; }

/* ---------- Formulare ---------- */
.form { display: flex; flex-direction: column; gap: 14px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 800; color: var(--dim); }
.form input, .form select, .form textarea {
  padding: 12px 14px; border-radius: 14px; border: 2px solid var(--line); background: var(--card2);
  font-size: 15.5px; font-weight: 600; color: var(--txt); min-width: 0;
}
.form textarea { resize: vertical; min-height: 60px; }
.form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.check { flex-direction: row !important; align-items: center; gap: 10px !important; font-size: 14.5px !important; color: var(--txt) !important; cursor: pointer; }
.check input { width: 20px; height: 20px; accent-color: var(--acc); }

/* ---------- Fächer wählen ---------- */
.pick-sem { margin-top: 26px; }
.pick-sem .ph { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.pick-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 10px; }
.pick {
  display: flex; align-items: center; gap: 12px; padding: 13px 14px; border-radius: 18px; cursor: pointer;
  border: 2px solid var(--line); background: var(--card); text-align: left; width: 100%; color: var(--txt); box-shadow: 0 3px 0 var(--line);
  transition: transform .08s;
}
.pick:active { transform: translateY(2px); }
.pick .t { flex: 1; min-width: 0; }
.pick .t b { display: block; font-size: 14.5px; font-weight: 900; line-height: 1.3; }
.pick .t span { font-size: 12.5px; color: var(--dim); font-weight: 600; }
.pick .box { width: 26px; height: 26px; border-radius: 9px; border: 2px solid var(--line2); display: grid; place-items: center; flex: none; color: transparent; }
.pick.on { border-color: var(--acc); background: var(--glow); box-shadow: 0 3px 0 var(--acc); }
.pick.on .box { background: var(--acc); border-color: var(--acc); color: #fff; }
.pick .box svg { width: 16px; height: 16px; stroke-width: 3.2; }
.sticky-save {
  position: sticky; bottom: calc(12px + env(safe-area-inset-bottom)); margin-top: 26px; z-index: 5;
  display: flex; align-items: center; gap: 12px; padding: 12px 12px 12px 18px; border-radius: 20px;
  border: 1px solid var(--line2); background: color-mix(in oklab, var(--card) 94%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: var(--shadow-lg);
}
.sticky-save .muted { flex: 1; font-size: 14px; font-weight: 700; }
@media (max-width: 720px) { .sticky-save { bottom: calc(94px + env(safe-area-inset-bottom)); } }

#toast {
  position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px); z-index: 50;
  padding: 12px 20px; border-radius: 16px; background: var(--txt); color: var(--bg); font-weight: 800; font-size: 14.5px;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; box-shadow: var(--shadow-lg);
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }
@media (max-width: 720px) { #toast { bottom: calc(100px + env(safe-area-inset-bottom)); } }

/* ---------- Responsiv ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 26px; }
  .hero-side { flex-direction: row; justify-content: flex-start; gap: 18px; order: -1; }
  .goal-note { text-align: left; }
  .gauge { width: 118px; height: 118px; }
  .gauge .center b { font-size: 32px; }
  .gauge .center b small { font-size: 15px; }
  .gauge .center span { font-size: 10.5px; }
  .modes { grid-template-columns: 1fr 1fr; }
  .deck-hero .hero-side { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 15px; }
  .hero { padding: 22px 20px; gap: 16px; border-radius: 24px; }
  .hero-cta .btn { flex: 1; }
  .form .two { grid-template-columns: 1fr; }
  .card { min-height: 330px; }
  .card-head { padding: 14px 18px 12px 42px; }
  .card-body { padding: 16px 18px 20px 42px; }
  .card-body::before { left: 28px; }
  .rate { gap: 7px; }
  .rate button { padding: 9px 2px; border-radius: 14px; min-height: 60px; }
  .rate button b { font-size: 13.5px; }
  .form input, .form select, .form textarea, .search { font-size: 16px; }
  .done .sum { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

/* ---------- Probeklausur ---------- */
.exam-panel { border-left: 8px solid var(--sky); }
.exam-head { display: flex; align-items: center; gap: 12px; }
.exam-head .m-ic { width: 42px; height: 42px; border-radius: 13px; display: grid; place-items: center; background: var(--skyGlow); color: var(--sky); }
.exam-hist { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.exam-hist div { padding: 8px 12px; border-radius: 12px; background: var(--card2); border: 1px solid var(--line); display: flex; flex-direction: column; min-width: 92px; }
.exam-hist b { font-size: 18px; font-weight: 900; }
.exam-hist span { font-size: 12px; color: var(--dim); font-weight: 600; }
.exam { max-width: 820px; margin: 0 auto; }
.exam-bar {
  position: sticky; top: 64px; z-index: 20; display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 18px;
  background: color-mix(in oklab, var(--card) 94%, transparent); border: 1px solid var(--line2); box-shadow: var(--shadow);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.exam-title { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.25; }
.exam-title b { font-weight: 900; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.exam-title span { font-size: 12.5px; color: var(--dim); font-weight: 700; }
.timer { font-weight: 900; font-size: 20px; font-variant-numeric: tabular-nums; padding: 6px 12px; border-radius: 12px; background: var(--card3); }
.timer.low { background: var(--amberGlow); color: var(--amber); }
.timer.over { background: var(--coralGlow); color: var(--coral); }
.exam-part { margin: 30px 0 4px; font-size: 18px; }
.task { margin-top: 16px; padding: 20px 22px; border-radius: var(--r-lg); background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); }
.task-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.task-no { font-weight: 900; font-size: 15px; }
.task-topic { font-size: 12px; font-weight: 800; color: var(--dim2); text-transform: uppercase; letter-spacing: .05em; }
.task-pts { margin-left: auto; font-size: 12.5px; font-weight: 900; color: var(--sky); background: var(--skyGlow); padding: 3px 10px; border-radius: 99px; white-space: nowrap; }
.task-q { font-weight: 700; font-size: 16px; line-height: 1.5; margin-bottom: 10px; white-space: pre-line; }
.task textarea, .num-grid input {
  width: 100%; padding: 12px 14px; border-radius: 14px; border: 2px solid var(--line); background: var(--card2); color: var(--txt);
  font-size: 15.5px; line-height: 1.6; resize: vertical;
  background-image: repeating-linear-gradient(transparent 0 24px, var(--rule) 24px 25px); background-attachment: local; background-position: 0 12px;
}
.num-grid input { background-image: none; }
.task textarea:focus, .num-grid input:focus { outline: none; border-color: var(--acc); box-shadow: 0 0 0 4px var(--glow); }
.material { white-space: pre-line; padding: 14px 16px; border-radius: 14px; background: var(--card2); border-left: 4px solid var(--amber); margin-bottom: 12px; font-size: 15px; }
.given { font-size: 14px; color: var(--dim); font-weight: 700; margin: 8px 0 4px; }
.sub { margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--line2); }
.sub-head { display: flex; gap: 10px; align-items: flex-start; font-weight: 700; margin-bottom: 8px; }
.num-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.num-grid label { display: flex; flex-direction: column; gap: 5px; font-size: 12.5px; font-weight: 800; color: var(--dim); }
.mc { display: flex; flex-direction: column; gap: 8px; margin: 6px 0 8px; }
.mc-opt { display: flex; gap: 10px; align-items: flex-start; padding: 11px 14px; border-radius: 14px; border: 2px solid var(--line); background: var(--card2); cursor: pointer; font-weight: 600; }
.mc-opt input { margin-top: 4px; accent-color: var(--acc); width: 18px; height: 18px; flex: none; }
.mc-opt:has(input:checked) { border-color: var(--acc); background: var(--glow); }
.mc-opt.res { cursor: default; }
.mc-opt.right { border-color: var(--acc); background: var(--glow); }
.mc-opt.wrong { border-color: var(--coral); background: var(--coralGlow); }
.tbl-wrap { overflow-x: auto; margin: 6px 0 10px; }
.tbl { border-collapse: collapse; font-size: 14px; min-width: 50%; }
.tbl th, .tbl td { border: 1px solid var(--line2); padding: 6px 12px; text-align: center; }
.tbl th { background: var(--card3); font-weight: 800; }
.result-hero { margin-top: 4px; }
.topic-bars { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.tb { padding: 14px 16px; border-radius: 16px; background: var(--card); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 8px; }
.tb-top { display: flex; justify-content: space-between; gap: 10px; font-weight: 700; font-size: 14px; }
.your { white-space: pre-line; padding: 12px 14px; border-radius: 14px; background: var(--card2); border: 1px solid var(--line); font-size: 15px; margin-bottom: 10px; }
.crit { list-style: none; padding: 0; margin: 0 0 10px; display: flex; flex-direction: column; gap: 6px; }
.crit li { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 12px; border: 2px solid var(--line); cursor: pointer; font-size: 14px; font-weight: 600; user-select: none; }
.crit li.ok { border-color: var(--acc); background: var(--glow); }
.crit li.no { border-color: var(--line2); }
.crit li.fixed { cursor: default; }
.crit .ck { width: 22px; height: 22px; border-radius: 7px; border: 2px solid var(--line2); display: grid; place-items: center; flex: none; color: #fff; }
.crit li.ok .ck { background: var(--acc); border-color: var(--acc); }
.crit .ck svg { width: 14px; height: 14px; stroke-width: 3.2; }
.crit .lbl { flex: 1; }
.crit .lbl em { font-style: normal; font-size: 11.5px; font-weight: 800; color: var(--amber); background: var(--amberGlow); padding: 1px 7px; border-radius: 99px; margin-left: 4px; white-space: nowrap; }
.crit .p { font-weight: 900; font-size: 13px; color: var(--dim); white-space: nowrap; }
.sol { border-radius: 14px; border: 1px dashed var(--acc); background: color-mix(in oklab, var(--glow) 60%, var(--card)); }
.sol summary { cursor: pointer; padding: 9px 14px; font-weight: 900; color: var(--acc2); font-size: 13.5px; }
.sol div { padding: 0 14px 12px; white-space: pre-line; font-size: 14.5px; }
@media (max-width: 560px) {
  .exam-bar { top: 58px; padding: 8px; gap: 8px; }
  .exam-bar .btn { padding: 8px 12px; min-height: 40px; }
  .timer { font-size: 17px; padding: 5px 9px; }
  .task { padding: 16px 14px; }
}

.exam-cta { display: flex; align-items: center; gap: 14px; padding: 18px 20px; border-radius: var(--r-lg); background: var(--card); border: 2px solid var(--sky); box-shadow: 0 4px 0 var(--sky); color: var(--txt); font-weight: 400; }
.exam-cta:hover { color: var(--txt); }
.exam-cta:active { transform: translateY(4px); box-shadow: none; }
.exam-cta .m-ic { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--skyGlow); color: var(--sky); flex: none; }
.exam-cta .ec-t { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.exam-cta .ec-t b { font-size: 17px; font-weight: 900; }
.exam-cta .ec-t span { font-size: 13.5px; color: var(--dim); font-weight: 600; }
.exam-cta .chev { color: var(--sky); }
.exam-list { display: flex; flex-direction: column; gap: 10px; }
.exam-row { position: relative; display: flex; align-items: center; gap: 14px; padding: 16px 16px 16px 24px; border-radius: 18px; background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; }
.exam-row::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 7px; background: var(--hue); }
.er-main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.er-main b { font-weight: 900; font-size: 15.5px; }
.er-main span { font-size: 13px; color: var(--dim); font-weight: 600; }
.er-last { display: flex; flex-direction: column; align-items: center; padding: 4px 10px; border-radius: 12px; background: var(--card2); }
.er-last b { font-weight: 900; font-size: 17px; }
.er-last span { font-size: 11px; color: var(--dim2); font-weight: 700; }
@media (max-width: 560px) { .exam-row { flex-wrap: wrap; } .exam-row .btn { width: 100%; } }


.login-gate { position: fixed; inset: 0; z-index: 500; display: flex; align-items: center; justify-content: center; padding: 20px; background: rgba(0,0,0,.45); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.login-gate-panel { width: 100%; max-width: 420px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--shadow-lg); padding: 28px; }
.login-gate-panel form.form { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.login-gate-panel form.form label { display: flex; flex-direction: column; gap: 6px; font-weight: 700; font-size: 13px; color: var(--dim); }
.login-gate-panel form.form input { font: inherit; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line2); background: var(--card2); color: var(--txt); }
.login-gate-panel .btn.ghost { width: 100%; margin-top: 10px; text-align: center; }

/* ---------- Aktives Abrufen: Teile, Selbstcheck, Tipp-Modus ---------- */
.learn-top .type-toggle { flex: none; display: inline-flex; align-items: center; gap: 6px; padding: 8px 12px; border-radius: 99px; border: 1px solid var(--line2); background: var(--card); color: var(--dim); font: inherit; font-size: 13px; font-weight: 800; cursor: pointer; }
.learn-top .type-toggle svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.learn-top .type-toggle.on { background: var(--okGlow); color: var(--acc2); border-color: color-mix(in oklab, var(--acc) 45%, transparent); }
.card .nparts { margin-top: 10px; display: inline-block; font-size: 12.5px; font-weight: 800; color: var(--dim); background: var(--card3); padding: 3px 10px; border-radius: 99px; }
.card .typed { display: block; width: 100%; margin-top: 22px; padding: 12px 14px; border-radius: 14px; border: 1.5px solid var(--line2); background: var(--card2); color: var(--txt); font: inherit; font-size: 16px; line-height: 1.5; font-weight: 600; resize: vertical; min-height: 96px; }
.card .typed:focus { outline: none; border-color: var(--acc); box-shadow: 0 0 0 4px var(--glow); }
.card .mine { margin-top: 18px; padding: 10px 14px; border-radius: 14px; background: var(--card3); font-size: 15px; line-height: 1.5; font-weight: 600; white-space: pre-line; color: var(--dim); }
.card .a-label.small { margin-top: 0; font-size: 19px; display: block; margin-bottom: 2px; }
.card .parts { list-style: none; padding: 0; margin: 8px 0 0; display: flex; flex-direction: column; gap: 6px; animation: fadeUp .3s ease both; }
.card .parts li { font-size: 16.5px; line-height: 1.5; font-weight: 600; }
.card .parts .part { width: 100%; display: flex; gap: 12px; align-items: flex-start; text-align: left; padding: 9px 12px; border-radius: 14px; border: 1.5px solid var(--line2); background: var(--card); color: var(--txt); font: inherit; cursor: pointer; transition: background .15s, border-color .15s; }
.card .parts .part:hover { border-color: color-mix(in oklab, var(--acc) 50%, var(--line2)); }
.card .parts .part .tick { flex: none; width: 22px; height: 22px; margin-top: 1px; border-radius: 7px; border: 2px solid var(--line2); display: grid; place-items: center; color: transparent; }
.card .parts .part .tick svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 3.2; stroke-linecap: round; stroke-linejoin: round; }
.card .parts .part.ok { background: var(--okGlow); border-color: color-mix(in oklab, var(--acc) 55%, transparent); }
.card .parts .part.ok .tick { background: var(--acc); border-color: var(--acc); color: #fff; }
.card .selfcheck { margin-top: 14px; font-size: 14px; font-weight: 700; color: var(--dim); }
.card .selfcheck b { color: var(--txt); }
.rate button.suggest { background: color-mix(in oklab, var(--c) 16%, var(--card)); outline: 3px solid color-mix(in oklab, var(--c) 45%, transparent); outline-offset: 2px; }
.review { max-width: 620px; margin: 10px auto 40px; }
.review h2 { font-size: 20px; font-weight: 900; margin: 0 0 4px; }
@media (max-width: 560px) {
  .learn-top .type-toggle span { display: none; }
  .learn-top .type-toggle { padding: 9px; }
  .card .parts li { font-size: 15.5px; }
}
.card .q.long { font-size: clamp(18px, 3vw, 21px); font-weight: 800; line-height: 1.45; }