/* ── CSS Variables ── */
:root {
  --bg:        #0a0c0a;
  --bg2:       #0f120f;
  --bg3:       #141814;
  --surface:   #1a1f1a;
  --surface2:  #222922;
  --border:    #2a342a;
  --border2:   #3a4a3a;
  --text:      #c8e6c8;
  --text-dim:  #5a745a;
  --text-muted:#3a4e3a;
  --green:     #39ff14;
  --green-dim: #1a7a08;
  --red:       #ff3b3b;
  --yellow:    #f5c400;
  --cyan:      #00e5ff;
  --correct:   #39ff14;
  --incorrect: #ff3b3b;
  --cursor-bg: #39ff14;
  --font-mono: 'Share Tech Mono', 'Courier New', monospace;
  --font-display: 'Orbitron', 'Share Tech Mono', monospace;
  --shadow-green: 0 0 12px rgba(57, 255, 20, 0.35);
  --shadow-red:   0 0 12px rgba(255, 59, 59, 0.35);
  --radius: 4px;
  --transition: 0.18s ease;
}

/* Light theme */
[data-theme="light"] {
  --bg:        #f0f4f0;
  --bg2:       #e8ede8;
  --bg3:       #dde5dd;
  --surface:   #d4ddd4;
  --surface2:  #c8d4c8;
  --border:    #a8baa8;
  --border2:   #88a088;
  --text:      #1a2e1a;
  --text-dim:  #4a644a;
  --text-muted:#7a947a;
  --green:     #0d6e00;
  --green-dim: #3a9e2a;
  --red:       #cc1111;
  --yellow:    #a07800;
  --cyan:      #006699;
  --correct:   #0d6e00;
  --incorrect: #cc1111;
  --cursor-bg: #0d6e00;
  --shadow-green: 0 0 8px rgba(13, 110, 0, 0.25);
  --shadow-red:   0 0 8px rgba(204, 17, 17, 0.25);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-mono);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

/* ── Scanlines (dark only) ── */
.scanlines {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.08) 2px,
    rgba(0,0,0,0.08) 4px
  );
  opacity: 1;
  transition: opacity var(--transition);
}
[data-theme="light"] .scanlines { opacity: 0; }

/* ── App wrapper ── */
.app-wrapper {
  max-width: 860px;
  margin: 0 auto;
  padding: 20px 20px 40px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ── HEADER ── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--text);
}
.logo-bracket { color: var(--text-dim); }
.logo-accent {
  color: var(--green);
  text-shadow: var(--shadow-green);
}

.header-controls { display: flex; gap: 8px; }
.icon-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 36px; height: 36px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  transition: border-color var(--transition), color var(--transition), box-shadow var(--transition);
}
.icon-btn:hover {
  border-color: var(--green);
  color: var(--green);
  box-shadow: var(--shadow-green);
}

/* ── STATS BAR ── */
.stats-bar {
  display: flex;
  gap: 4px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat-cell {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 8px 10px;
  border-right: 1px solid var(--border);
  transition: background var(--transition);
}
.stat-cell:last-child { border-right: none; }
.stat-cell:hover { background: var(--surface); }

.stat-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
  transition: color var(--transition);
  min-width: 3ch;
  text-align: center;
}
.stat-label {
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  margin-top: 4px;
  text-transform: uppercase;
}

.timer-cell { background: var(--surface); }
.timer-value {
  color: var(--green);
  transition: color 0.4s;
}
.timer-low { color: var(--red) !important; text-shadow: var(--shadow-red); animation: pulse 0.6s infinite; }
.timer-mid { color: var(--yellow) !important; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

/* ── CONTROLS ROW ── */
.controls-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn-group {
  display: flex;
  gap: 4px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
}
.diff-btn, .cat-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  padding: 5px 14px;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition);
}
.diff-btn:hover, .cat-btn:hover {
  color: var(--green);
  border-color: var(--border2);
}
.diff-btn.active, .cat-btn.active {
  background: var(--surface2);
  border-color: var(--green);
  color: var(--green);
  box-shadow: var(--shadow-green);
}

/* ── TYPING SECTION ── */
.typing-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Passage */
.passage-wrap {
  position: relative;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  min-height: 90px;
}
.passage {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.9;
  letter-spacing: 0.03em;
  word-break: break-word;
  user-select: none;
}

/* Character spans */
.char { position: relative; transition: color 0.06s; }
.char.correct { color: var(--correct); }
.char.incorrect {
  color: var(--incorrect);
  text-decoration: underline;
  text-decoration-color: var(--incorrect);
}
.char.pending { color: var(--text-muted); }
.char.current {
  color: var(--text);
  background: var(--surface2);
  border-radius: 2px;
  outline: 1px solid var(--green);
  outline-offset: 1px;
  box-shadow: var(--shadow-green);
  animation: blink-cursor 0.9s step-end infinite;
}

@keyframes blink-cursor {
  0%, 100% { background: var(--surface2); }
  50%       { background: rgba(57,255,20,0.18); }
}

/* Current word highlight */
.char.current-word { background: rgba(57,255,20,0.06); border-radius: 1px; }
[data-theme="light"] .char.current-word { background: rgba(13,110,0,0.07); }

/* Input area */
.input-wrap {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.input-wrap:focus-within {
  border-color: var(--green);
  box-shadow: var(--shadow-green);
}
.prompt-symbol {
  color: var(--green);
  font-size: 0.85rem;
  margin-top: 3px;
  flex-shrink: 0;
  opacity: 0.7;
}
.typing-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.6;
  resize: none;
  caret-color: var(--green);
  min-height: 60px;
}
.typing-input::placeholder { color: var(--text-muted); }
.typing-input:disabled { opacity: 0.4; cursor: not-allowed; }

/* Action row */
.action-row {
  display: flex;
  align-items: center;
  gap: 14px;
}
.restart-btn {
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--text-dim);
  padding: 8px 20px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}
.restart-btn:hover {
  border-color: var(--green);
  color: var(--green);
  box-shadow: var(--shadow-green);
}
.restart-btn.big { padding: 12px 36px; font-size: 0.85rem; }

.best-wpm-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.badge-label {
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}
.badge-value {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--yellow);
  font-weight: 700;
}

/* ── RESULT OVERLAY ── */
.result-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(3px);
  animation: fadeIn 0.3s ease;
}
.result-overlay.hidden { display: none; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.result-card {
  background: var(--bg2);
  border: 1px solid var(--green);
  box-shadow: var(--shadow-green), 0 0 60px rgba(57,255,20,0.08);
  border-radius: var(--radius);
  padding: 28px 32px;
  max-width: 560px;
  width: 95%;
  max-height: 88vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: slideUp 0.35s cubic-bezier(0.16,1,0.3,1);
}
@keyframes slideUp { from { transform: translateY(30px); opacity:0; } to { transform: translateY(0); opacity:1; } }

.result-header { display: flex; flex-direction: column; gap: 8px; }
.result-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--green);
  letter-spacing: 0.15em;
  text-shadow: var(--shadow-green);
}
.result-line { height: 1px; background: linear-gradient(90deg, var(--green), transparent); }

.result-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.result-metric {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.result-metric.highlight {
  border-color: var(--green);
  box-shadow: var(--shadow-green);
}
.rm-value {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--green);
}
.rm-label {
  font-size: 0.58rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

/* Badges */
.badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.badge {
  padding: 5px 14px;
  border: 1px solid var(--yellow);
  color: var(--yellow);
  background: rgba(245,196,0,0.08);
  border-radius: 2px;
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  animation: badgePop 0.4s cubic-bezier(0.16,1,0.3,1);
}
@keyframes badgePop { from { transform: scale(0.7); opacity:0; } to { transform: scale(1); opacity:1; } }

/* Weakness */
.weakness-box {
  background: var(--surface);
  border-left: 3px solid var(--cyan);
  padding: 10px 14px;
  font-size: 0.82rem;
  color: var(--text-dim);
  border-radius: 0 var(--radius) var(--radius) 0;
  display: none;
}
.weakness-box.visible { display: block; }

/* Bar chart */
.chart-section { display: flex; flex-direction: column; gap: 8px; }
.chart-label {
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}
.bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 50px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 8px 4px;
}
.bar {
  flex: 1;
  background: var(--green-dim);
  border-radius: 1px 1px 0 0;
  transition: height 0.4s ease, background 0.3s;
  position: relative;
  min-width: 4px;
}
.bar:hover { background: var(--green); }
.bar::after {
  content: attr(data-wpm);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.55rem;
  color: var(--text-dim);
  white-space: nowrap;
  pointer-events: none;
  display: none;
}
.bar:hover::after { display: block; }

/* History */
.history-section { display: flex; flex-direction: column; gap: 8px; }
.history-label {
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}
.history-list { display: flex; flex-direction: column; gap: 4px; }
.history-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--text-dim);
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
}
.history-item:last-child { border-bottom: none; }
.hi-rank { width: 20px; color: var(--text-muted); font-size: 0.7rem; }
.hi-wpm { font-family: var(--font-display); color: var(--green); min-width: 48px; }
.hi-acc { min-width: 52px; }
.hi-time { margin-left: auto; font-size: 0.7rem; color: var(--text-muted); }

/* Streak */
.streak-row {
  font-size: 0.82rem;
  color: var(--text-dim);
  text-align: center;
}
.streak-hot { color: var(--yellow); font-weight: bold; }

/* Result actions */
.result-actions { display: flex; justify-content: center; padding-top: 4px; }

/* ── DASHBOARD FOOTER ── */
.dashboard-footer {
  margin-top: auto;
  display: flex;
  gap: 4px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.dash-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 6px 8px;
  border-right: 1px solid var(--border);
}
.dash-item:last-child { border-right: none; }
.dash-label {
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}
.dash-val {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dim);
  margin-top: 3px;
}

/* ── UTILITY ── */
.hidden { display: none !important; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--green-dim); }

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .app-wrapper { padding: 14px 14px 30px; gap: 14px; }
  .logo { font-size: 1.2rem; }
  .stat-value { font-size: 1.1rem; }
  .result-grid { grid-template-columns: repeat(2, 1fr); }
  .controls-row { gap: 8px; }
  .diff-btn, .cat-btn { padding: 5px 8px; font-size: 0.6rem; }
  .passage { font-size: 0.92rem; }
  .typing-input { font-size: 0.9rem; }
  .result-card { padding: 20px 16px; }
  .rm-value { font-size: 1.1rem; }
  .bar-chart { height: 40px; }
}

@media (max-width: 400px) {
  .stats-bar { flex-wrap: wrap; }
  .stat-cell { flex: 1 0 30%; }
}

/* ── FOCUS ── */
button:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}