:root {
  --bg: #1b1f27;
  --panel: #232936;
  --text: #d6dae3;
  --dim: #6b7280;
  --accent: #f6b93b;
  --correct: #7bd88f;
  --wrong: #e5534b;
  --caret: #f6b93b;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

header {
  width: 100%;
  max-width: 900px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 20px 8px;
}

h1 { font-size: 1.4rem; font-weight: 600; letter-spacing: 0.5px; }
h1 span { color: var(--accent); }

button {
  background: var(--panel);
  color: var(--text);
  border: 1px solid #3a4356;
  border-radius: 6px;
  padding: 7px 14px;
  font-size: 0.85rem;
  cursor: pointer;
}
button:hover { border-color: var(--accent); }
button.danger { color: var(--wrong); }
.header-buttons { display: flex; gap: 10px; }

main {
  width: 100%;
  max-width: 900px;
  padding: 10px 20px 40px;
}

#hud {
  display: flex;
  gap: 36px;
  justify-content: center;
  padding: 18px 0;
}
.hud-item { text-align: center; }
.hud-item span { font-size: 1.6rem; color: var(--accent); font-variant-numeric: tabular-nums; }
.hud-item label { display: block; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1px; color: var(--dim); }

#board {
  background: var(--panel);
  border-radius: 12px;
  padding: 34px 38px;
  min-height: 180px;
  max-height: 55vh;
  overflow-y: auto;
  outline: none;
  position: relative;
  cursor: text;
}
#capslock-warning {
  width: fit-content;
  margin: 0 auto 12px;
  background: #3a3020;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 0.8rem;
  font-weight: 600;
}
#board.unfocused #words { filter: blur(3px); opacity: 0.5; }
#focus-hint {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 1rem;
}
#board.unfocused #focus-hint { display: flex; }

#words {
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 1.6rem;
  line-height: 2.6rem;
  word-spacing: 0.4rem;
  user-select: none;
}
.word { display: inline-block; margin-right: 0.75rem; border-radius: 4px; padding: 0 2px; }
.word.current { background: rgba(246, 185, 59, 0.08); }
.word.dirty-word { box-shadow: inset 0 -2px 0 rgba(246, 185, 59, 0.55); }
.word .char { color: var(--dim); transition: color 0.05s; }
.word .char.correct { color: var(--correct); }
.word .char.wrong { color: var(--wrong); text-decoration: underline; }
.word .char.extra { color: var(--wrong); opacity: 0.7; }
.word.missed-word .char { text-decoration: underline; text-decoration-color: var(--wrong); }

.caret {
  display: inline-block;
  width: 2px;
  height: 1.7rem;
  background: var(--caret);
  vertical-align: middle;
  margin: 0 -1px;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

#summary {
  margin-top: 26px;
  background: var(--panel);
  border-radius: 12px;
  padding: 24px 30px;
}
#summary h2 { color: var(--accent); font-size: 1.1rem; margin-bottom: 12px; }
#summary-stats { display: flex; gap: 30px; margin-bottom: 14px; font-size: 1rem; }
#summary-missed .miss-chip {
  display: inline-block;
  background: #33262a;
  color: var(--wrong);
  border-radius: 5px;
  padding: 3px 10px;
  margin: 3px 6px 3px 0;
  font-family: "Cascadia Mono", "Consolas", monospace;
}
.dim { color: var(--dim); font-size: 0.85rem; margin-top: 10px; }
kbd {
  background: #333c4e;
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.8rem;
}

.hidden { display: none !important; }

#stats-panel {
  position: fixed;
  top: 0; right: 0;
  width: 340px;
  height: 100vh;
  background: var(--panel);
  border-left: 1px solid #3a4356;
  padding: 20px;
  overflow-y: auto;
  z-index: 10;
}
.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.panel-header h2 { font-size: 1rem; color: var(--accent); }
#stats-panel h3 { font-size: 0.9rem; margin: 18px 0 4px; }
#trouble-list { margin: 12px 0 0 20px; font-size: 0.9rem; }
#trouble-list li { margin-bottom: 4px; font-family: "Cascadia Mono", "Consolas", monospace; }
#trouble-list .rate { color: var(--wrong); font-size: 0.8rem; margin-left: 8px; }
#trouble-list .clean { color: var(--correct); }
#custom-words {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid #3a4356;
  border-radius: 6px;
  padding: 8px;
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: 0.85rem;
  margin-top: 6px;
  resize: vertical;
}
.panel-actions { display: flex; gap: 10px; margin-top: 12px; }

#storage-warning {
  width: 100%;
  max-width: 900px;
  margin: 6px 20px 0;
  background: #3a2a24;
  border: 1px solid var(--wrong);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--text);
}
#storage-warning code {
  font-family: "Cascadia Mono", "Consolas", monospace;
  color: var(--accent);
}