:root {
  color-scheme: light dark;
  --bg: #F4F2ED;
  --surface: #FBFAF7;
  --surface-2: #ECE9E2;
  --border: #DAD6CD;
  --text: #26282B;
  --text-soft: #55575A;
  --muted: #6E6C67;
  --accent: #8C6A22;
  --accent-soft: #EFE5CF;
  --on-accent: #FBFAF7;
  --right: #3B6B46;
  --wrong: #A6433A;
  --wrong-soft: #F3DDD8;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1C1E21;
    --surface: #24272B;
    --surface-2: #2D3035;
    --border: #3A3E44;
    --text: #E6E3DC;
    --text-soft: #B5B1A9;
    --muted: #9A968F;
    --accent: #D8B676;
    --accent-soft: #3A3427;
    --on-accent: #1C1E21;
    --right: #9CC6A3;
    --wrong: #E89A90;
    --wrong-soft: #4A2E2B;
  }
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

a { color: inherit; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
ol { list-style: none; }

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.app {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 24px 64px;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-bottom: 20px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.header__note { color: var(--muted); font-size: 0.9rem; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
}
.brand__mark {
  width: 20px;
  height: 18px;
  border: 2px solid currentColor;
  border-radius: 4px;
  position: relative;
}
.brand__mark::after {
  content: "";
  position: absolute;
  left: 3px;
  right: 3px;
  bottom: 3px;
  height: 2px;
  background: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  font-weight: 600;
  text-decoration: none;
}
.btn:hover { background: var(--surface-2); }
.btn--primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn--primary:hover { background: var(--accent); filter: brightness(0.94); }
.btn--quiet { border-color: transparent; background: none; color: var(--text-soft); }
.btn--quiet:hover { background: var(--surface-2); color: var(--text); }
.btn--large { padding: 12px 22px; font-size: 1.05rem; }

.arrow-icon {
  width: 14px;
  height: 2px;
  background: currentColor;
  position: relative;
}
.arrow-icon::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 8px;
  height: 8px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
}

.restart-icon {
  width: 13px;
  height: 13px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
}

.home {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.home__title {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.home__lede { color: var(--text-soft); max-width: 36ch; margin-bottom: 28px; }

.setting + .setting { margin-top: 24px; }
.setting__label { font-size: 0.9rem; font-weight: 600; color: var(--text-soft); margin-bottom: 8px; }

.choices { display: flex; flex-wrap: wrap; gap: 6px; }
.choice {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 0.925rem;
}
.choice:hover { color: var(--text); background: var(--surface); }
.choice[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--text); font-weight: 600; }

.scores { border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.scores__row,
.scores__empty {
  display: grid;
  grid-template-columns: 5.5rem 3.5rem 1fr auto;
  gap: 12px;
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--text-soft);
}
.scores__empty { display: block; color: var(--muted); }
.scores__row + .scores__row { border-top: 1px solid var(--border); }
.scores__wpm { color: var(--text); font-weight: 600; }
.scores__date { color: var(--muted); }

.live {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.live div,
.result-grid div {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
}
.live dt,
.result-grid dt { font-size: 0.85rem; color: var(--muted); }
.live dd,
.result-grid dd { font-size: 1.5rem; font-weight: 650; font-variant-numeric: tabular-nums; }

.words-wrap {
  position: relative;
  font-family: var(--mono);
  font-size: 1.35rem;
  line-height: 2.2;
  box-sizing: content-box;
  height: 6.6em;
  padding: 0 24px;
  overflow: hidden;
  scroll-behavior: smooth;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: text;
}
.words { color: var(--muted); user-select: none; }
.word { display: inline-block; vertical-align: top; white-space: pre; }
.char { position: relative; }
.char.is-right { color: var(--right); }
.char.is-wrong { color: var(--wrong); text-decoration: underline; text-underline-offset: 4px; }
.char--space.is-wrong { background: var(--wrong-soft); text-decoration: none; }
.char.is-cursor::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0.35em;
  bottom: 0.3em;
  width: 2px;
  background: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.focus-hint {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font);
  font-size: 1rem;
  color: var(--text);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
}
.focus-hint[hidden] { display: none; }

.typing-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.test-tip { color: var(--muted); font-size: 0.875rem; margin: 12px 2px 28px; }

.keyboard { display: grid; gap: 6px; justify-content: center; margin-bottom: 28px; }
.kb-row { display: flex; gap: 6px; justify-content: center; }
.key {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.85rem;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.key--space { width: 260px; }
.key--right { background: var(--accent-soft); border-color: var(--accent); color: var(--text); transition: none; }
.key--wrong { background: var(--wrong-soft); border-color: var(--wrong); color: var(--wrong); transition: none; }

.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.actions--center { justify-content: center; }

.result { text-align: center; padding: 20px 0 32px; }
.result__label { color: var(--muted); }
.result__wpm { font-size: clamp(4rem, 14vw, 6.5rem); font-weight: 700; line-height: 1; margin: 6px 0 14px; font-variant-numeric: tabular-nums; }
.result__verdict { color: var(--text-soft); max-width: 44ch; margin: 0 auto; }

.result-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}

@media (max-width: 760px) {
  .home { grid-template-columns: 1fr; gap: 40px; }
  .live,
  .result-grid { grid-template-columns: repeat(2, 1fr); }
  .keyboard { display: none; }
  .words-wrap { font-size: 1.15rem; padding: 0 18px; }
}

@media (max-width: 420px) {
  .app { padding: 20px 16px 48px; }
  .header__note { display: none; }
  .scores__row { grid-template-columns: 4.5rem 3rem 1fr; }
  .scores__date { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .words-wrap { scroll-behavior: auto; }
  .char.is-cursor::before { animation: none; }
}