/**
 * WPMType - Speed Test Lab Stylesheet
 * High-precision performance testing interface & live velocity visualization
 */

/* Container */
.speed-lab-container {
  max-width: 960px;
  margin: 0 auto 3rem auto;
}

/* 3 Challenge Selector Cards */
.lab-challenges-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.lab-card {
  background: var(--bg-card);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.25rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  display: flex;
  flex-direction: column;
  position: relative;
  user-select: none;
}

.lab-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.lab-card.active {
  border-color: var(--accent-cyan);
  background: var(--bg-elevated);
  box-shadow: 0 0 20px var(--accent-cyan-glow);
}

.lab-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.lab-card-icon {
  font-size: 1.6rem;
  line-height: 1;
}

.lab-card-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  color: var(--text-muted);
}

.lab-card.active .lab-card-badge {
  background: var(--accent-cyan);
  color: #ffffff;
  font-weight: 800;
}

.lab-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  line-height: 1.25;
}

.lab-card-desc {
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 0.85rem;
  flex-grow: 1;
}

.lab-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
}

.lab-meta-tag {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  color: var(--text-muted);
}

/* Secondary Controls Bar (Font & Language indicator) */
.lab-subcontrols-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.lab-active-challenge-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.lab-active-pill {
  background: var(--accent-cyan-glow);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.lab-font-wrap {
  position: relative;
}

.lab-font-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 0.825rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.lab-font-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  max-height: 250px;
  overflow-y: auto;
  padding: 0.35rem;
  display: none;
  z-index: 100;
}

.lab-font-menu.show {
  display: block;
}

.lab-font-item {
  padding: 0.45rem 0.75rem;
  font-size: 0.825rem;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.lab-font-item:hover,
.lab-font-item.active {
  background: var(--bg-elevated);
  color: var(--accent-cyan);
}

/* Diagnostic Arena Card */
.lab-arena-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
  position: relative;
}

/* Diagnostic HUD */
.lab-hud {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.lab-hud-stat {
  text-align: center;
}

.lab-hud-label {
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.lab-hud-val {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.lab-hud-val.wpm-color { color: var(--accent-cyan); }
.lab-hud-val.acc-color { color: var(--accent-emerald); }
.lab-hud-val.err-color { color: var(--text-secondary); }
.lab-hud-val.err-color.has-err { color: var(--accent-red); }
.lab-hud-val.cons-color { color: var(--accent-amber); }

/* Live Velocity Sparkline Visualization */
.lab-velocity-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.lab-velocity-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.lab-velocity-canvas {
  width: 100%;
  height: 60px;
  display: block;
}

/* Typing Display Box */
.lab-typing-box {
  background: var(--bg-secondary);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  min-height: 140px;
  max-height: 180px;
  overflow-y: hidden;
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--text-muted);
  cursor: text;
  position: relative;
  transition: border-color var(--transition-fast);
}

.lab-typing-box.focused {
  border-color: var(--accent-cyan);
}

.lab-word {
  display: inline-block;
  margin-right: 0.4em;
  white-space: nowrap;
}

.lab-char {
  position: relative;
  transition: color 0.05s ease;
}

.lab-char.correct {
  color: var(--accent-emerald);
}

.lab-char.incorrect {
  color: var(--accent-red);
  background: var(--accent-red-glow);
  border-radius: 2px;
}

.lab-char.current {
  border-bottom: 2px solid var(--accent-cyan);
  color: var(--text-primary);
}

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

/* Focus Overlay */
.lab-focus-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  z-index: 50;
  cursor: pointer;
  padding: 2rem;
  text-align: center;
}

[data-theme="light"] .lab-focus-overlay {
  background: rgba(255, 255, 255, 0.92);
}

.lab-overlay-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.lab-overlay-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 380px;
}

/* Diagnostic Result Modal */
.lab-result-modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.lab-result-modal.active {
  display: flex;
}

.lab-result-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  max-width: 700px;
  width: min(92vw, 700px);
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow-lg);
  animation: labFadeIn 0.25s ease-out;
  position: relative;
}

@keyframes labFadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.lab-result-header {
  text-align: center;
  margin-bottom: 1.15rem;
}

.lab-res-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--accent-cyan-glow);
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.lab-res-wpm-wrap {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.35rem;
}

.lab-res-wpm-num {
  font-family: var(--font-mono);
  font-size: clamp(2.75rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--accent-cyan);
  line-height: 1;
}

.lab-res-wpm-unit {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
}

/* Result Metrics Grid */
.lab-res-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.lab-res-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.6rem 0.5rem;
  text-align: center;
}

.lab-res-box-val {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.lab-res-box-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* Endurance Split Stats Box */
.lab-split-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.85rem;
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.8rem;
}

.lab-split-item strong {
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* Result Graph Box */
.lab-res-graph-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.75rem;
  margin-bottom: 1.15rem;
}

.lab-res-graph-canvas {
  width: 100%;
  height: 60px;
  display: block;
}

.lab-res-actions {
  display: flex;
  gap: 0.75rem;
  flex-direction: column;
}

@media (min-width: 520px) {
  .lab-res-actions {
    flex-direction: row;
    max-width: 400px;
    margin: 0 auto;
    width: 100%;
  }
  .lab-res-actions .btn {
    flex: 1;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .lab-result-card {
    padding: 1.25rem 1rem;
    width: calc(100% - 24px);
    max-width: 100%;
  }

  .lab-challenges-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .lab-hud {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.85rem;
  }

  .lab-arena-card {
    padding: 1.25rem;
  }

  .lab-typing-box {
    font-size: 1.1rem;
    padding: 1rem;
  }

  .lab-res-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .lab-result-card {
    padding: 1.15rem 0.85rem;
    width: calc(100% - 20px);
    border-radius: var(--radius-lg);
  }

  .lab-hud {
    grid-template-columns: repeat(2, 1fr);
  }

  .lab-res-wpm-num {
    font-size: clamp(2.25rem, 8vw, 2.75rem);
  }

  .lab-res-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.45rem;
    margin-bottom: 0.85rem;
  }

  .lab-res-box {
    padding: 0.5rem 0.35rem;
  }

  .lab-res-box-val {
    font-size: 1.1rem;
  }

  .lab-split-box {
    padding: 0.45rem 0.65rem;
    font-size: 0.75rem;
    margin-bottom: 0.85rem;
  }

  .lab-res-graph-box {
    padding: 0.4rem 0.5rem;
    margin-bottom: 1rem;
  }

  .lab-res-graph-canvas {
    height: 48px;
  }
}

/* Explicit High-Contrast Light Mode Overrides */
[data-theme="light"] .lab-card,
[data-theme="light"] .lab-result-card {
  background: #ffffff;
  border-color: #e2e8f0;
}

[data-theme="light"] .lab-card:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
}

[data-theme="light"] .lab-card.active {
  background: #f0f9ff;
  border-color: #0284c7;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.12);
}

[data-theme="light"] .lab-card-title {
  color: #0f172a;
}

[data-theme="light"] .lab-card-desc {
  color: #475569;
}

[data-theme="light"] .lab-typing-box {
  background: #f8fafc;
  border-color: #e2e8f0;
  color: #64748b;
}

[data-theme="light"] .lab-char.current {
  color: #0f172a;
}

[data-theme="light"] .lab-char.correct {
  color: #059669;
}

[data-theme="light"] .lab-char.incorrect {
  color: #dc2626;
  background: rgba(220, 38, 38, 0.1);
}

[data-theme="light"] .lab-hud-val.wpm-color {
  color: #0284c7;
}

[data-theme="light"] .lab-hud-val.acc-color {
  color: #059669;
}

[data-theme="light"] .lab-hud-val.cons-color {
  color: #d97706;
}

[data-theme="light"] .lab-res-wpm-num {
  color: #0284c7;
}

[data-theme="light"] .lab-split-box {
  background: #f1f5f9;
  border-color: #e2e8f0;
  color: #1e293b;
}

[data-theme="light"] .lab-split-item strong {
  color: #0f172a;
}

[data-theme="light"] .lab-res-box {
  background: #f8fafc;
  border-color: #e2e8f0;
}

[data-theme="light"] .lab-res-box-val {
  color: #0f172a;
}