.page-shell {
  --bg: transparent;
  --bg-soft: var(--surface-soft);
  --surface: var(--surface-strong);
  --surface-strong: var(--surface-active);
  --text: var(--ink);
  --muted: var(--muted);
  --accent: var(--accent);
  --accent-strong: var(--accent-strong);
  --success: var(--leaf);
  --danger: var(--critical);
  --border: var(--line);
  --shadow: var(--shadow);
  
  --line-height: 2.1rem;
  --line-clamp: 4;
  --radius: 18px;
  --page-scale: 1.24;
  
  position: relative;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 34px;
}

.topbar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  margin-bottom: 28px;
}

.topbar .brand {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.34em;
  color: var(--text);
}

.topbar-center {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 14px;
}

.section-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.48rem 0.78rem;
  background: transparent;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition:
    color 140ms ease,
    border-color 140ms ease,
    background-color 140ms ease,
    transform 140ms ease;
}

.pill:hover {
  color: var(--text);
  transform: translateY(-1px);
}

.pill.is-active {
  border-color: var(--border);
  background: var(--surface);
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.pill-row--themes {
  justify-content: flex-end;
}

.theme-pill {
  min-width: 5.5rem;
  text-align: center;
}

.main {
  display: grid;
  gap: 22px;
  align-content: start;
}

.stage {
  display: flex;
  justify-content: center;
}

.typing-card {
  position: relative;
  width: min(1120px, 100%);
  padding: 32px 32px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.04);
}

.fullscreen-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 100;
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 10px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.fullscreen-btn svg {
  pointer-events: none;
}

.fullscreen-btn:hover {
  color: var(--text);
  background-color: var(--surface-soft);
}

.main:fullscreen {
  background-color: var(--paper);
  padding: 8vh 40px 40px;
  overflow-y: auto;
  --line-height: 3.5rem;
}

.main:fullscreen .typing-card {
  width: min(1500px, 100%);
  padding: 60px 60px 48px;
}

.main:fullscreen .fullscreen-btn {
  top: 24px;
  right: 24px;
  padding: 14px;
}

.main:fullscreen .fullscreen-btn svg {
  width: 24px;
  height: 24px;
}

.main:fullscreen .typing-meta {
  font-size: 1.2rem;
  margin-bottom: 32px;
}

.main:fullscreen .word-stream {
  font-size: clamp(2rem, 3vw, 3rem);
}

.main:fullscreen .single-word .word {
  font-size: clamp(4rem, 8vw, 8rem);
}

.main:fullscreen .stat-chip {
  min-width: 180px;
  padding: 1.4rem 1.8rem;
  border-radius: 30px;
}

.main:fullscreen .stat-label {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.main:fullscreen .stat-value {
  font-size: 2.2rem;
}

.main:fullscreen .dashboard-card,
.main:fullscreen[data-state="idle"] .result-card,
.main:fullscreen[data-state="playing"] .result-card {
  display: none !important;
}

.typing-meta {
  min-height: 1.2rem;
  margin: 0 0 12px;
  text-align: center;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
}

.typing-viewport {
  height: calc(var(--line-height) * var(--line-clamp) + 1.1rem);
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  padding: 0.3rem 0.2rem 1rem;
  mask-image: linear-gradient(
    to bottom,
    transparent 0,
    black 1.2rem,
    black calc(100% - 1.8rem),
    transparent 100%
  );
}

.typing-viewport::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.word-stream {
  display: flex;
  flex-wrap: wrap;
  gap: 0.58rem 0.84rem;
  align-content: flex-start;
  line-height: var(--line-height);
  font-size: clamp(1.12rem, 1.38vw, 1.55rem);
  letter-spacing: 0.002em;
  color: var(--muted);
  white-space: normal;
}

.word {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
}

.word--pending {
  color: var(--muted);
  opacity: 0.45;
}

.word--active {
  color: var(--text);
  font-weight: 700;
}

.word--correct {
  color: var(--success);
}

.word--wrong {
  color: var(--danger);
}

.char {
  display: inline-block;
}

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

.char--wrong {
  color: var(--danger);
}

.char--pending {
  color: var(--muted);
  opacity: 0.45;
}

.caret {
  display: inline-block;
  width: 0.8px;
  height: 1.15em;
  margin-left: 1px;
  vertical-align: -0.13em;
  background: var(--accent);
  animation: blink 1s steps(1) infinite;
}

.single-word {
  min-height: calc(var(--line-height) * 4);
  display: grid;
  place-items: center;
  padding: 1rem 0;
  text-align: center;
}

.single-word .word {
  font-size: clamp(2.1rem, 4vw, 4.35rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text);
}

.stats-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.stat-chip {
  min-width: 120px;
  padding: 0.7rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  text-align: center;
  box-shadow: var(--shadow);
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.28rem;
}

.stat-value {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.stat-value--accent {
  color: var(--accent-strong);
}

.result-card {
  width: min(860px, 100%);
  margin: 0 auto;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.012)),
    var(--surface);
  box-shadow: var(--shadow);
}

.result-card.hidden,
.dashboard-card.hidden {
  display: none;
}

.dashboard-card {
  width: min(860px, 100%);
  margin: 22px auto 0;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.012)),
    var(--surface);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.04);
}

@keyframes shake-hard {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-8px); background-color: rgba(255, 50, 50, 0.05); }
  40%, 80% { transform: translateX(8px); background-color: rgba(255, 50, 50, 0.05); }
}

.shake-hard {
  animation: shake-hard 0.4s ease-in-out;
  border-color: #ff4a4a !important;
}

.result-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 0.9rem;
}

.result-title {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.result-title--small {
  font-size: 0.84rem;
}

.result-subtitle {
  color: var(--muted);
  font-size: 0.8rem;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.result-box {
  padding: 0.82rem 0.9rem;
  border-radius: 14px;
  background: var(--surface-strong);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.result-box .stat-label {
  margin-bottom: 0.22rem;
}

.result-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.9rem;
}

.result-graph {
  margin-top: 1rem;
  padding: 0.95rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  background: var(--surface-strong);
}

.result-graph-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 0.8rem;
}

.graph-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 14px;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 999px;
}

.graph-frame {
  overflow: hidden;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.12);
}

.graph-empty {
  padding: 1.1rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.graph-svg {
  display: block;
  width: 100%;
  height: auto;
}

.graph-grid-line {
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 1;
  stroke-dasharray: 4 6;
}

.graph-wpm {
  stroke: #67c8ff;
  fill: none;
  color: #67c8ff;
}

.graph-accuracy {
  stroke: #86efac;
  fill: none;
  color: #86efac;
}

.graph-points {
  stroke: #ff8db8;
  fill: none;
  color: #ff8db8;
}

.graph-dot {
  fill: currentColor;
  stroke: rgba(0, 0, 0, 0.18);
  stroke-width: 1;
}

.legend-swatch.graph-wpm,
.graph-dot.graph-wpm {
  background: #67c8ff;
}

.legend-swatch.graph-accuracy,
.graph-dot.graph-accuracy {
  background: #86efac;
}

.legend-swatch.graph-points,
.graph-dot.graph-points {
  background: #ff8db8;
}

.graph-svg polyline {
  fill: none;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.graph-svg circle {
  opacity: 0.95;
}

.button {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.62rem 0.95rem;
  background: var(--surface-strong);
  color: var(--text);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.button:hover {
  border-color: rgba(255, 255, 255, 0.24);
}

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

@keyframes blink {
  0%,
  45% {
    opacity: 1;
  }
  46%,
  100% {
    opacity: 0;
  }
}

@media (max-width: 980px) {
  .page-shell {
    width: min(100vw - 20px, 1000px);
  }

  .topbar {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .topbar-center {
    justify-content: flex-start;
  }

  .pill-row--themes {
    justify-content: flex-start;
  }

  .result-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  :root {
    --line-height: 1.95rem;
    --page-scale: 1;
  }

  .typing-card {
    padding: 24px 16px 18px;
  }

  .word-stream {
    font-size: 1.02rem;
    gap: 0.48rem 0.64rem;
  }

  .result-grid {
    grid-template-columns: 1fr;
  }
}