/* ============ Design-Tokens: Neon auf Dunkel ============ */
:root {
  --bg: #0b0f1c;
  --bg-raised: #141a2e;
  --bg-card: #1a2138;
  --line: #2a3354;
  --text: #f2f5ff;
  --text-dim: #9aa6cc;
  --neon-blau: #36a6ff;
  --neon-rot: #ff4d6d;
  --neon-gelb: #ffd000;
  --neon-lila: #b15cff;
  --neon-gruen: #00e676;
  --neon-orange: #ff9100;
  --neon-tuerkis: #00e5d0;
  --neon-pink: #ff4dd8;
  --radius: 22px;
  --radius-sm: 14px;
  --touch: 64px;
  --shadow: 0 8px 30px rgba(0, 0, 0, .45);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  height: 100%;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(177, 92, 255, .18), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(0, 229, 208, .14), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  overscroll-behavior: none;
}

body { user-select: none; }
input, textarea { user-select: text; }

#app { min-height: 100dvh; display: flex; flex-direction: column; }

button {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
  cursor: pointer;
  touch-action: manipulation;
}

h1, h2, h3 { margin: 0; }

#offline-banner {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 10px;
  text-align: center;
  font-weight: 700;
  background: var(--neon-rot);
  color: #fff;
}

/* ============ Gemeinsame Bausteine ============ */
.screen { flex: 1; display: flex; flex-direction: column; padding: 16px; gap: 14px; max-width: 1200px; margin: 0 auto; width: 100%; }

.topbar { display: flex; align-items: center; gap: 12px; min-height: var(--touch); }
.topbar .spacer { flex: 1; }
.topbar .who { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--touch);
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 2px solid var(--line);
  font-weight: 800;
  font-size: 18px;
  transition: transform .08s ease, border-color .15s;
}
.btn:active { transform: scale(.96); }
.btn.primary { background: var(--neon-blau); border-color: var(--neon-blau); color: #04122a; }
.btn.danger { border-color: var(--neon-rot); color: var(--neon-rot); }
.btn.ghost { border-color: transparent; color: var(--text-dim); }
.btn.small { min-height: 44px; font-size: 15px; padding: 6px 14px; border-radius: 12px; }

.avatar-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-card);
  border: 3px solid var(--line);
  font-size: 1.6em;
  width: 1.9em; height: 1.9em;
  flex: none;
}

.error-text { color: var(--neon-rot); font-weight: 700; min-height: 1.4em; }
.dim { color: var(--text-dim); }

/* ============ Kinder-Login ============ */
.kid-title {
  text-align: center;
  font-size: clamp(26px, 4.5vw, 42px);
  font-weight: 900;
  letter-spacing: .5px;
  background: linear-gradient(90deg, var(--neon-tuerkis), var(--neon-blau), var(--neon-lila), var(--neon-pink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding: 8px 0;
}

.avatar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
  padding-bottom: 24px;
}
.avatar-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 18px 8px 14px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
  transition: transform .08s ease;
}
.avatar-tile:active { transform: scale(.95); }
.avatar-tile .face { font-size: 62px; line-height: 1; filter: drop-shadow(0 0 14px rgba(54, 166, 255, .35)); }
.avatar-tile .name { font-weight: 800; font-size: 19px; text-align: center; }

/* ============ PIN-Eingabe ============ */
.pin-screen { align-items: center; justify-content: center; gap: 20px; }
.pin-dots { display: flex; gap: 18px; height: 30px; }
.pin-dots span {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 3px solid var(--neon-blau);
  transition: background .1s;
}
.pin-dots span.full { background: var(--neon-blau); box-shadow: 0 0 14px var(--neon-blau); }
.pin-pad { display: grid; grid-template-columns: repeat(3, minmax(84px, 110px)); gap: 14px; }
.pin-pad button {
  height: clamp(64px, 11vh, 96px);
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 2px solid var(--line);
  font-size: 34px;
  font-weight: 900;
  transition: transform .06s ease;
}
.pin-pad button:active { transform: scale(.93); background: var(--bg-raised); }
.shake { animation: shake .45s; }
@keyframes shake {
  20% { transform: translateX(-12px); }
  40% { transform: translateX(10px); }
  60% { transform: translateX(-8px); }
  80% { transform: translateX(6px); }
}

/* ============ Kachel-Raster (Fächer / Farbbereiche) ============ */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(240px, 44vw), 1fr));
  gap: 18px;
  align-content: start;
  flex: 1;
}
.big-tile {
  --tile-color: var(--neon-blau);
  min-height: clamp(140px, 24vh, 220px);
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 3px solid var(--tile-color);
  box-shadow: 0 0 24px color-mix(in srgb, var(--tile-color) 35%, transparent), var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px;
  transition: transform .08s ease;
}
.big-tile:active { transform: scale(.95); }
.big-tile .icon { font-size: clamp(48px, 8vw, 72px); line-height: 1; }
.big-tile .label { font-size: clamp(19px, 2.6vw, 26px); font-weight: 900; text-align: center; }
.big-tile .sub { color: var(--text-dim); font-weight: 700; }

/* ============ Lernpfad (Themenbereiche) ============ */
.unit-path { display: flex; flex-direction: column; gap: 14px; padding-bottom: 24px; }
.unit-row {
  --tile-color: var(--neon-blau);
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 92px;
  padding: 12px 18px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 2px solid var(--line);
  border-left: 10px solid var(--tile-color);
  box-shadow: var(--shadow);
  text-align: left;
  transition: transform .08s ease;
}
.unit-row:active { transform: scale(.98); }
.unit-row .step {
  width: 52px; height: 52px;
  flex: none;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--tile-color) 22%, var(--bg-raised));
  border: 2px solid var(--tile-color);
  font-size: 24px;
  font-weight: 900;
}
.unit-row .info { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.unit-row .name { font-size: 21px; font-weight: 800; }
.unit-row .badges { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--text-dim); font-weight: 700; flex-wrap: wrap; }
.progress-track { flex: none; width: min(160px, 26vw); height: 12px; border-radius: 6px; background: var(--bg-raised); overflow: hidden; }
.progress-track i { display: block; height: 100%; border-radius: 6px; background: var(--tile-color); transition: width .3s; }
.test-badge { font-size: 26px; }

/* ============ Lerninhalte ============ */
.item-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(220px, 44vw), 1fr));
  gap: 16px;
  padding-bottom: 24px;
}
.item-card {
  --tile-color: var(--neon-blau);
  position: relative;
  min-height: 120px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 2px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 14px;
  box-shadow: var(--shadow);
  transition: transform .08s ease, border-color .15s;
}
.item-card:active { transform: scale(.94); border-color: var(--tile-color); }
.item-card .icon { font-size: 40px; line-height: 1; }
.item-card .letter {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--tile-color) 28%, var(--bg-raised));
  font-size: 24px; font-weight: 900;
}
.item-card .label { font-size: 17px; font-weight: 700; text-align: center; }
.item-card .tally {
  position: absolute;
  top: 10px; right: 10px;
  min-width: 34px; height: 34px;
  padding: 0 8px;
  border-radius: 17px;
  background: var(--tile-color);
  color: #04122a;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900;
  font-size: 15px;
}

/* ============ Konfetti / Erfolgs-Overlay ============ */
.success-overlay {
  position: fixed;
  inset: 0;
  z-index: 150;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(8, 11, 22, .82);
  backdrop-filter: blur(4px);
  animation: pop-in .25s ease;
}
.success-overlay .check { font-size: 110px; animation: bounce .6s ease; }
.success-overlay .msg { font-size: clamp(26px, 5vw, 40px); font-weight: 900; text-align: center; padding: 0 20px; }
@keyframes pop-in { from { opacity: 0; } }
@keyframes bounce {
  0% { transform: scale(.2); }
  55% { transform: scale(1.25); }
  100% { transform: scale(1); }
}
canvas.confetti { position: fixed; inset: 0; z-index: 160; pointer-events: none; }

/* ============ Idle-Countdown ============ */
.idle-overlay {
  position: fixed;
  inset: 0;
  z-index: 180;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  background: rgba(8, 11, 22, .9);
}
.idle-overlay .count { font-size: 90px; font-weight: 900; color: var(--neon-gelb); }

/* ============ Lernbegleiter*innen-Bereich ============ */
.teacher { font-size: 16px; }
.teacher .layout { display: flex; gap: 18px; flex: 1; min-height: 0; }
.teacher nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 210px;
}
.teacher nav .btn { justify-content: flex-start; min-height: 52px; font-size: 16px; }
.teacher nav .btn.active { border-color: var(--neon-tuerkis); color: var(--neon-tuerkis); }
.teacher .content { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 14px; }

@media (max-width: 760px) {
  .teacher .layout { flex-direction: column; }
  .teacher nav { flex-direction: row; flex-wrap: wrap; min-width: 0; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; color: var(--text-dim); font-size: 13px; text-transform: uppercase; letter-spacing: .6px; padding: 8px 10px; }
.table td { padding: 10px; border-top: 1px solid var(--line); }
.table tr.clickable { cursor: pointer; }
.table tr.clickable:hover td { background: var(--bg-raised); }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 700; font-size: 14px; color: var(--text-dim); }
.field input, .field select, .field textarea {
  font: inherit;
  padding: 12px 14px;
  border-radius: 10px;
  border: 2px solid var(--line);
  background: var(--bg-raised);
  color: var(--text);
  min-height: 48px;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--neon-blau); }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.form-row .field { flex: 1; min-width: 160px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  background: var(--bg-raised);
  border: 1px solid var(--line);
}
.chip.bestanden { color: var(--neon-gruen); border-color: var(--neon-gruen); }
.chip.teilweise { color: var(--neon-gelb); border-color: var(--neon-gelb); }
.chip.wiederholen { color: var(--neon-rot); border-color: var(--neon-rot); }

.tree-row { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-top: 1px solid var(--line); }
.tree-row:first-child { border-top: none; }
.tree-row .grow { flex: 1; min-width: 0; }
.tree-row .muted { color: var(--text-dim); font-size: 13px; }
.icon-btn {
  min-width: 44px; min-height: 44px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg-raised);
  font-size: 17px;
  display: inline-flex; align-items: center; justify-content: center;
}
.icon-btn:disabled { opacity: .3; }

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(5, 8, 16, .7);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 20px;
  width: min(560px, 100%);
  max-height: 90dvh;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow);
}
.modal h3 { font-size: 20px; }

.picker-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(56px, 1fr)); gap: 8px; max-height: 300px; overflow: auto; }
.picker-grid button {
  font-size: 28px;
  min-height: 56px;
  border-radius: 12px;
  border: 2px solid var(--line);
  background: var(--bg-raised);
}
.picker-grid button.selected { border-color: var(--neon-tuerkis); box-shadow: 0 0 10px var(--neon-tuerkis); }

.toast {
  position: fixed;
  bottom: 20px; left: 50%;
  transform: translateX(-50%);
  z-index: 190;
  padding: 12px 22px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 2px solid var(--neon-gruen);
  color: var(--neon-gruen);
  font-weight: 800;
  box-shadow: var(--shadow);
  animation: pop-in .2s ease;
}
.toast.error { border-color: var(--neon-rot); color: var(--neon-rot); }

.empty-state { text-align: center; color: var(--text-dim); padding: 40px 16px; font-size: 18px; font-weight: 600; }