/* =========================================================================
   typetest — dark, minimal, terminal-inspired typing test
   All theming lives in :root custom properties so it's easy to reskin.
   ========================================================================= */

:root {
  /* ---- Colors (the six below are swapped live by the theme switcher) ---- */
  --bg:           #0e0e0f;   /* page background */
  --fg:           #d4d4d6;   /* default text (typed-correct) */
  --dim:          #555558;   /* pending / untyped characters */
  --error:        #e0533d;   /* incorrect characters */
  --accent:       #e2b341;   /* golden/amber: cursor, timer, highlights */
  --muted:        #6b6b70;   /* labels, hints */

  /* ---- Derived tints (auto-recompute when --accent / --error change) ---- */
  --accent-soft:  color-mix(in srgb, var(--accent) 15%, transparent);
  --error-bg:     color-mix(in srgb, var(--error) 13%, transparent);
  --panel:        color-mix(in srgb, var(--fg) 7%, var(--bg));

  /* ---- Typography ---- */
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --font-size-type: clamp(1.25rem, 2.4vw, 1.7rem);
  --line-height-type: 1.9;

  /* ---- Motion ---- */
  --cursor-blink: 1s;
  --fade-in: 0.5s;
  --theme-fade: 0.35s;
}

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

html,
body {
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-mono);
  -webkit-font-smoothing: antialiased;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  /* Smooth cross-fade when the theme changes */
  transition: background-color var(--theme-fade) ease, color var(--theme-fade) ease;
}

/* ---- App shell ---- */
.app {
  width: 100%;
  max-width: 850px;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* =========================================================================
   Top bar — mode selector + live stats
   ========================================================================= */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  min-height: 1.8rem;
}

.modes {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.mode-group {
  display: flex;
  gap: 0.3rem;
}

/* Thin separator between the type toggle and the amount buttons */
.mode-divider {
  width: 1px;
  align-self: stretch;
  min-height: 1.1rem;
  background: var(--muted);
  opacity: 0.3;
  margin: 0 0.3rem;
}

/* The infinite (∞) glyph reads better a touch larger */
.mode-inf {
  font-size: 1.15rem;
  line-height: 1;
}

/* Infinite mode has no amount — hide the divider and amount buttons */
.modes.mode-no-amount .mode-divider,
.modes.mode-no-amount #amountGroup {
  display: none;
}

.mode {
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.mode:hover {
  color: var(--fg);
}

.mode.active {
  color: var(--accent);
  background: var(--accent-soft);
}

/* Live readouts — hidden until typing begins (toggled via .visible) */
.live {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  color: var(--accent);
  font-size: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.live.visible {
  opacity: 1;
}

.live-timer {
  font-weight: 700;
  font-size: 1.15rem;
}

.live-sep {
  color: var(--muted);
}

.live-unit {
  color: var(--muted);
  font-size: 0.8rem;
  margin-left: 0.1rem;
}

/* =========================================================================
   Typing area
   ========================================================================= */
.test {
  position: relative;
}

/* Fixed-height clipping viewport — shows ~3 lines, hides the rest */
.words {
  position: relative;
  font-size: var(--font-size-type);
  line-height: var(--line-height-type);
  color: var(--dim);
  letter-spacing: 0.5px;
  height: calc(var(--font-size-type) * var(--line-height-type) * 3);
  overflow: hidden;
  user-select: none;
  outline: none;
}

/* The scrolling strip — JS translates this upward by whole lines */
.words-inner {
  position: relative;
  transition: transform 0.2s ease;
  will-change: transform;
}

/* Each word is an inline-block so it wraps cleanly and never breaks mid-word */
.word {
  display: inline-block;
  margin-right: 0.6em;
}

/* Per-character states */
.char {
  position: relative;
  transition: color 0.05s ease;
}

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

.char.incorrect {
  color: var(--error);
  background: var(--error-bg);
  border-radius: 2px;
}

/* Extra characters the user typed beyond the word's length */
.char.extra {
  color: var(--error);
  opacity: 0.6;
}

/* =========================================================================
   Animated cursor — a floating bar positioned by JS
   ========================================================================= */
.cursor {
  position: absolute;
  width: 2px;
  height: calc(var(--font-size-type) * 1.25);
  background: var(--accent);
  border-radius: 2px;
  top: 0;
  left: 0;
  /* Smoothly glide between characters (and fade color on theme change) */
  transition: left 0.08s ease, top 0.08s ease, background-color var(--theme-fade) ease;
  animation: blink var(--cursor-blink) steps(1) infinite;
  will-change: left, top;
}

/* Stop blinking while actively moving (class toggled by JS) */
.cursor.typing {
  animation: none;
}

@keyframes blink {
  0%, 50%   { opacity: 1; }
  50.01%, 100% { opacity: 0; }
}

/* Hidden input that captures real keystrokes (kept off-screen) */
.capture {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
}

/* =========================================================================
   Results screen
   ========================================================================= */
.results {
  display: none;
}

.results.visible {
  display: block;
  animation: fadeInUp var(--fade-in) ease both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 1.5rem 3rem;
  justify-content: start;
  align-items: end;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--muted);
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--muted);
}

/* Hero stats (WPM + accuracy) use the accent color and are larger */
.stat--hero .stat-value {
  font-size: 3.5rem;
  color: var(--accent);
}

/* "new best" badge — only shown when the score beats the stored best */
.new-best {
  display: none;
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.new-best.show {
  display: block;
  animation: fadeInUp var(--fade-in) ease both;
}

/* =========================================================================
   Bottom bar — restart + hint
   ========================================================================= */
.bottombar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

.restart {
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 1rem;
  padding: 0.5rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.restart:hover,
.restart:focus-visible {
  color: var(--accent);
  background: var(--accent-soft);
  outline: none;
}

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

.hint kbd {
  font-family: inherit;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-size: 0.75rem;
}

/* =========================================================================
   Theme switcher — fixed bottom-right, opens a grid of palette swatches
   ========================================================================= */
.theme-picker {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 50;
}

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.85rem;
  padding: 0.4rem 0.65rem;
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--fg);
  background: var(--accent-soft);
  outline: none;
}

.theme-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  transition: background-color var(--theme-fade) ease;
}

.theme-menu {
  position: absolute;
  bottom: calc(100% + 0.5rem);
  right: 0;
  display: grid;
  grid-template-columns: repeat(2, max-content);
  gap: 0.2rem;
  padding: 0.5rem;
  background: var(--panel);
  border-radius: 12px;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.45);
  animation: menuPop 0.14s ease;
  /* Scroll when there are many palettes rather than overflowing the screen */
  max-height: min(70vh, 460px);
  overflow-y: auto;
}

/* Slim scrollbar for the palette list */
.theme-menu::-webkit-scrollbar {
  width: 8px;
}
.theme-menu::-webkit-scrollbar-thumb {
  background: var(--accent-soft);
  border-radius: 8px;
}

.theme-menu[hidden] {
  display: none;
}

@keyframes menuPop {
  from { opacity: 0; transform: translateY(6px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}

.theme-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.8rem;
  padding: 0.4rem 0.6rem;
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  transition: color 0.15s ease, background 0.15s ease;
}

.theme-item:hover {
  color: var(--fg);
  background: var(--accent-soft);
}

.theme-item.active {
  color: var(--accent);
  background: var(--accent-soft);
}

/* Mini preview: the palette's bg with accent + fg dots inside */
.theme-swatch {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 34px;
  height: 22px;
  border-radius: 5px;
  border: 1px solid rgba(128, 128, 128, 0.25);
}

.theme-dot-sm {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.theme-name {
  white-space: nowrap;
}

/* =========================================================================
   Mobile
   ========================================================================= */
@media (max-width: 600px) {
  :root {
    --font-size-type: 1.2rem;
  }

  .app {
    gap: 1.5rem;
  }

  .topbar {
    justify-content: center;
  }

  .stat--hero .stat-value {
    font-size: 2.6rem;
  }

  .results-grid {
    gap: 1.2rem 2rem;
  }

  .theme-picker {
    bottom: 0.75rem;
    right: 0.75rem;
  }

  /* Keep the popup on-screen on narrow viewports */
  .theme-menu {
    max-width: calc(100vw - 1.5rem);
    overflow: auto;
  }
}