/* Schreibschrift-Übung — eigenes Design: Schul-Hellblau + Linienpapier-Weiss */
:root {
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --blue-soft: #dbeafe;
  --blue-line: #bfdbfe;
  --paper: #ffffff;
  --paper-2: #f6f9ff;
  --ink: #0f2444;
  --ink-soft: #4a5b78;
  --line-red: #f4a6b8;
  --line-blue: #93c5fd;
  --line-mid: #2563eb;
  --good: #16a34a;
  --gold: #f59e0b;
  --shadow: 0 6px 20px rgba(37, 99, 235, .14);
  --radius: 16px;
  --radius-sm: 10px;
  --bg: var(--paper-2);
  --surface: var(--paper);
  --border: #d6e4ff;
  --focus: #f59e0b;
}

[data-theme="dark"] {
  --blue: #60a5fa;
  --blue-dark: #3b82f6;
  --blue-soft: #1e3a5f;
  --blue-line: #2c4a73;
  --paper: #16233b;
  --paper-2: #0d1726;
  --ink: #e8f0ff;
  --ink-soft: #a9bdde;
  --line-red: #b85d72;
  --line-blue: #3b6aa8;
  --line-mid: #60a5fa;
  --good: #4ade80;
  --gold: #fbbf24;
  --shadow: 0 6px 24px rgba(0, 0, 0, .45);
  --bg: var(--paper-2);
  --surface: var(--paper);
  --border: #2a3f5f;
  --focus: #fbbf24;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: "Comic Sans MS", "Trebuchet MS", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  overflow-wrap: anywhere;
  -webkit-text-size-adjust: 100%;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--blue);
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
  z-index: 100;
}
.skip-link:focus { left: 8px; }

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px 18px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: #fff;
  box-shadow: var(--shadow);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  background: rgba(255,255,255,.18);
  border-radius: 12px;
  color: #fff;
}
.topbar h1 { font-size: 1.25rem; margin: 0; letter-spacing: .2px; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }

/* Buttons */
.btn {
  font: inherit;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  cursor: pointer;
  transition: transform .08s ease, background .15s ease, box-shadow .15s ease;
  color: var(--ink);
  background: var(--blue-soft);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: #fff; color: var(--blue-dark); }
[data-theme="dark"] .btn-primary { background: var(--blue); color: #08111f; }
.btn-ghost {
  background: rgba(255,255,255,.16);
  color: #fff;
}
.canvas-panel .btn-ghost { background: var(--blue-soft); color: var(--ink); }
.btn-icon {
  background: rgba(255,255,255,.16);
  color: #fff;
  padding: 10px 12px;
  min-width: 44px;
  font-size: 1.1rem;
}
.canvas-panel .btn-icon { background: var(--blue-soft); color: var(--blue-dark); }
.theme-icon { font-size: 1.15rem; line-height: 1; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

/* Layout */
.layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px;
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 18px;
  align-items: start;
}
@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.panel h2 { margin: 0 0 12px; font-size: 1.05rem; color: var(--blue-dark); }
[data-theme="dark"] .panel h2 { color: var(--blue); }

/* Modi */
.modes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}
.mode-btn {
  font: inherit;
  font-weight: 800;
  padding: 10px 4px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--paper-2);
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .15s ease;
}
.mode-btn:hover { border-color: var(--blue); }
.mode-btn.is-active {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

/* Zeichen-Grid */
.grid-wrap { max-height: 320px; overflow-y: auto; border-radius: var(--radius-sm); }
.char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
  gap: 8px;
  padding: 2px;
}
.char-cell {
  font: inherit;
  font-weight: 800;
  font-size: 1.4rem;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--paper-2);
  color: var(--ink);
  cursor: pointer;
  transition: all .12s ease;
}
.char-cell:hover { border-color: var(--blue); transform: translateY(-1px); }
.char-cell.is-active {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue-dark);
}

/* Wort-Formular */
.word-form label { display: block; font-weight: 700; margin-bottom: 6px; color: var(--ink-soft); }
.word-row { display: flex; gap: 8px; }
.word-row input {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 1.05rem;
  padding: 10px 12px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--paper-2);
  color: var(--ink);
}
.word-row input:focus { border-color: var(--blue); }
.hint { font-size: .85rem; color: var(--ink-soft); margin: 8px 0 0; }
.word-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.word-chip {
  font-weight: 800;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--blue-soft);
  color: var(--blue-dark);
  border: 2px solid transparent;
  cursor: pointer;
}
[data-theme="dark"] .word-chip { color: var(--ink); }
.word-chip.is-active { border-color: var(--blue); background: var(--blue); color: #fff; }

/* Canvas-Panel */
.canvas-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.canvas-head h2 { margin: 0; }
.current-label {
  display: inline-grid;
  place-items: center;
  min-width: 1.6em;
  padding: 0 .25em;
  background: var(--blue-soft);
  color: var(--blue-dark);
  border-radius: 8px;
}
[data-theme="dark"] .current-label { color: var(--ink); }
.char-nav { display: flex; gap: 8px; }

.canvas-stage {
  position: relative;
  width: 100%;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 0);
  border: 3px solid var(--blue-line);
  border-radius: var(--radius);
  overflow: hidden;
  touch-action: none;
}
#board {
  display: block;
  width: 100%;
  height: auto;
  background: var(--paper);
  cursor: crosshair;
  touch-action: none;
}

.praise-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  font-size: clamp(2rem, 12vw, 5rem);
  font-weight: 900;
  color: var(--good);
  text-shadow: 0 2px 0 rgba(255,255,255,.7);
  animation: pop .6s ease;
}
@keyframes pop {
  0% { transform: scale(.4); opacity: 0; }
  60% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

/* Toolbar */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
}
.tool-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tool-label { font-weight: 700; color: var(--ink-soft); font-size: .9rem; }
.pen-sizes { display: flex; gap: 6px; }
.pen-btn {
  font: inherit;
  font-weight: 800;
  width: 44px; height: 44px;
  border: 2px solid var(--border);
  border-radius: 50%;
  background: var(--paper-2);
  color: var(--ink);
  cursor: pointer;
}
.pen-btn.is-active { background: var(--blue); color: #fff; border-color: var(--blue-dark); }
.toggles .switch { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--ink-soft); cursor: pointer; }
.switch input { width: 20px; height: 20px; accent-color: var(--blue); cursor: pointer; }
.actions { gap: 10px; }

/* Result */
.result { margin-top: 14px; min-height: 0; }
.result-card {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  background: var(--paper-2);
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.result-stars { font-size: 1.8rem; letter-spacing: 2px; }
.result-text { flex: 1; min-width: 140px; }
.result-pct { font-weight: 900; font-size: 1.4rem; color: var(--blue-dark); }
[data-theme="dark"] .result-pct { color: var(--blue); }
.result-msg { color: var(--ink-soft); }

.footer {
  text-align: center;
  padding: 14px;
  color: var(--ink-soft);
  font-size: .85rem;
}

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(18px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  padding: 12px 18px;
  border-radius: 999px;
  box-shadow: var(--shadow);
  z-index: 200;
  max-width: 90vw;
  font-weight: 700;
}
[data-theme="dark"] .toast { background: var(--blue); color: #08111f; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}