:root {
  --bg: #0f172a;
  --bg-grad-a: #020617;
  --bg-grad-b: #0b1224;
  --panel: #111827;
  --panel-2: #1f2937;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --ok: #22c55e;
  --bad: #ef4444;
  --accent: #3b82f6;
  --border: #243042;
  --border-2: #334155;
  --kb-bg: #0b1220;
  --kb-key: #111a2c;
  --kb-key-border: #2b3a52;
  --kb-key-hover: #1e293b;
}

[data-theme="light"] {
  --bg: #f1f5f9;
  --bg-grad-a: #e2e8f0;
  --bg-grad-b: #eef2f7;
  --panel: #ffffff;
  --panel-2: #f1f5f9;
  --text: #0f172a;
  --muted: #475569;
  --ok: #16a34a;
  --bad: #dc2626;
  --accent: #2563eb;
  --border: #cbd5e1;
  --border-2: #cbd5e1;
  --kb-bg: #e2e8f0;
  --kb-key: #ffffff;
  --kb-key-border: #cbd5e1;
  --kb-key-hover: #f1f5f9;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, var(--bg-grad-a), var(--bg-grad-b) 35%, var(--bg));
  color: var(--text);
}

.app {
  max-width: 1040px;
  margin: 24px auto;
  padding: 16px;
}

.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

h1 {
  margin: 0;
  font-size: 1.5rem;
}

h2 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--muted);
}

.settings {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 0.9rem;
}

#themeBtn {
  padding: 6px 10px;
}

.controls,
.stats,
.text-panel,
.input-panel,
.keyboard-wrap,
.history-panel,
.game-controls,
.achievements {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 12px;
}

.controls {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

select,
button,
textarea,
input[type="number"] {
  border-radius: 8px;
  border: 1px solid var(--border-2);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 10px;
  font-size: 0.95rem;
}

button {
  cursor: pointer;
  transition: 0.15s ease;
}
button:hover {
  border-color: var(--accent);
}
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(96px, 1fr));
  gap: 8px;
}

#targetText {
  line-height: 1.8;
  letter-spacing: 0.2px;
  word-wrap: break-word;
  min-height: 80px;
  margin: 0;
}

.char {
  padding: 1px 0;
  border-radius: 3px;
}

.char.correct {
  color: var(--ok);
}

.char.incorrect {
  color: white;
  background: var(--bad);
}

.char.current {
  outline: 1px solid var(--accent);
  background: #1e3a8a55;
}

textarea {
  width: 100%;
  resize: vertical;
}

.continue-btn {
  margin-top: 10px;
  width: 100%;
  padding: 12px;
  border-color: var(--ok);
  color: var(--ok);
  font-weight: 600;
  font-size: 1rem;
}
.continue-btn:hover {
  background: #1e3a8a55;
}

.retry-btn {
  margin-top: 10px;
  width: 100%;
  padding: 12px;
  border-color: var(--bad);
  color: var(--bad);
  font-weight: 600;
  font-size: 1rem;
}
.retry-btn:hover {
  background: rgba(239,68,68,0.15);
}

.session-feedback {
  margin: 10px 0 0;
  padding: 10px;
  border-radius: 8px;
  text-align: center;
  font-size: 0.95rem;
}
.session-feedback.ok {
  background: rgba(34,197,94,0.15);
  color: var(--ok);
}
.session-feedback.warn {
  background: rgba(239,68,68,0.12);
  color: var(--bad);
}

/* Tastatur */
.keyboard-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.keyboard-head h2 {
  margin: 0;
}
.kb-controls {
  display: flex;
  gap: 6px;
}
.kb-controls button {
  padding: 6px 10px;
  font-size: 0.85rem;
}
.kb-controls button.active {
  border-color: var(--accent);
  background: #1e3a8a55;
}

.keyboard {
  background: var(--kb-bg);
  border: 1px dashed var(--border-2);
  border-radius: 10px;
  padding: 10px;
  display: grid;
  gap: 6px;
}

.kb-row {
  display: flex;
  gap: 6px;
  justify-content: center;
}

.key {
  min-width: 38px;
  height: 38px;
  padding: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--kb-key);
  border: 1px solid var(--kb-key-border);
  border-radius: 6px;
  color: var(--text);
  position: relative;
}

.key.key-space {
  flex: 1;
  min-width: 200px;
}

.key.next {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}

.key .finger-bar {
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 2px;
  height: 3px;
  border-radius: 2px;
  opacity: 0.85;
}

.finger-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  font-size: 0.8rem;
}
.finger-legend .fl-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.finger-legend .fl-dot {
  width: 12px;
  height: 12px;
  border-radius: 3px;
}

/* Spielmodus */
.mode-switch {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.mode-btn {
  flex: 1;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border-2);
  background: var(--panel-2);
  color: var(--muted);
  font-weight: 600;
}

.mode-btn.active {
  border-color: var(--accent);
  color: var(--text);
  background: #1e3a8a55;
}

.game-controls {
  display: grid;
  gap: 12px;
}

.game-config {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.game-config input[type="number"] {
  width: 90px;
}

.game-stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(86px, 1fr));
  gap: 8px;
}

.highscore {
  background: var(--kb-bg);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  padding: 10px;
}
.highscore h3 {
  margin: 0 0 6px;
  font-size: 0.9rem;
  color: var(--muted);
}
.hs-list {
  margin: 0;
  padding: 0 0 0 20px;
  font-size: 0.85rem;
  display: grid;
  gap: 4px;
}
.hs-list li.empty-state {
  list-style: none;
  margin-left: -20px;
}

.interlevel,
.game-summary,
.mode-hint {
  text-align: center;
  padding: 16px;
}

.interlevel .interlevel-main,
.summary-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ok);
  margin-bottom: 6px;
}

.summary-reason {
  color: var(--bad);
  font-weight: 600;
}

.game-summary p {
  margin: 4px 0;
}

.mode-hint {
  color: var(--muted);
  font-style: italic;
}

/* Achievements */
.ach-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
}
.ach-list li {
  background: var(--kb-bg);
  border: 1px solid var(--border-2);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.85rem;
  color: var(--muted);
}
.ach-list li.unlocked {
  color: var(--text);
  border-color: var(--ok);
}
.ach-list li .ach-name {
  font-weight: 600;
  display: block;
}
.ach-list li .ach-desc {
  font-size: 0.78rem;
}

/* Historie */
.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.history-header h2 {
  margin: 0;
}
.history-actions {
  display: flex;
  gap: 8px;
}

.history-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.history-card {
  background: var(--kb-bg);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  padding: 10px;
}

.history-card h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--muted);
}

.session-list,
.daily-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.session-list li,
.daily-list li {
  background: var(--kb-key);
  border: 1px solid var(--kb-key-border);
  border-radius: 8px;
  padding: 8px 30px 8px 8px;
  font-size: 0.85rem;
  position: relative;
}

.session-list .del-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1;
  padding: 2px 6px;
}
.session-list .del-btn:hover {
  color: var(--bad);
  border: none;
}

.chart {
  width: 100%;
  display: block;
  margin-top: 8px;
  border-radius: 6px;
}

.empty-state {
  color: var(--muted);
  font-style: italic;
}

@media (max-width: 760px) {
  .stats,
  .game-stats {
    grid-template-columns: repeat(2, minmax(100px, 1fr));
  }
  .history-grid {
    grid-template-columns: 1fr;
  }
  .key {
    min-width: 30px;
    height: 34px;
    font-size: 0.8rem;
  }
  .key.key-space {
    min-width: 120px;
  }
}