/* ═══════════════════════════════════════
   BASE RESET & TOKENS
═══════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #000;
  --white: #fff;
  --grey-1: #111;
  --grey-2: #222;
  --grey-3: #444;
  --grey-4: #888;
  --grey-5: #bbb;
  --font: 'JetBrains Mono', 'Courier New', monospace;
  --transition: 0.35s cubic-bezier(.4,0,.2,1);
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: #000;
  color: var(--white);
  font-family: var(--font);
  touch-action: manipulation;
  -webkit-font-smoothing: antialiased;
}

/* Always-on dot background */
#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ═══════════════════════════════════════
   SCREEN SYSTEM
═══════════════════════════════════════ */
.screen {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transform: scale(1.04);
  transition: opacity var(--transition), transform var(--transition);
  will-change: opacity, transform;
}
.screen.active {
  opacity: 1;
  pointer-events: all;
  transform: scale(1);
}

/* ═══════════════════════════════════════
   MENU SCREEN
═══════════════════════════════════════ */
.menu-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
#bg-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.menu-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(16px, 4vw, 36px);
  padding: 2rem;
  z-index: 1;
}

/* Logo */
.menu-logo {
  display: flex;
  gap: 0.05em;
}
.logo-letter {
  font-size: clamp(4rem, 16vw, 10rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--white);
  display: inline-block;
  animation: letterDrop 0.6s cubic-bezier(.2,1.4,.4,1) both;
  animation-delay: calc(var(--i) * 0.07s);
}
@keyframes letterDrop {
  from { opacity: 0; transform: translateY(-40px) scaleY(1.3); }
  to   { opacity: 1; transform: none; }
}

/* Subtitle */
.menu-subtitle {
  font-size: clamp(0.65rem, 2.5vw, 1rem);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--grey-4);
  animation: fadeUp 0.6s 0.4s both;
}

/* Icons row */
.menu-icons {
  display: flex;
  gap: clamp(16px, 4vw, 48px);
  animation: fadeUp 0.6s 0.55s both;
}
.menu-icons svg {
  width: clamp(22px, 5vw, 36px);
  height: clamp(22px, 5vw, 36px);
  opacity: 0.45;
}

/* Buttons */
.btn-primary {
  appearance: none;
  background: var(--white);
  color: var(--black);
  border: none;
  padding: clamp(12px,3vw,18px) clamp(40px,10vw,80px);
  font-family: var(--font);
  font-size: clamp(0.85rem, 3vw, 1.15rem);
  font-weight: 700;
  letter-spacing: 0.25em;
  cursor: pointer;
  border-radius: 2px;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
  animation: fadeUp 0.6s 0.7s both;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.btn-primary:hover  { transform: scale(1.05); box-shadow: 0 0 30px rgba(255,255,255,0.3); }
.btn-primary:active { transform: scale(0.97); }

.btn-secondary {
  appearance: none;
  background: transparent;
  color: var(--white);
  border: 1.5px solid var(--grey-3);
  padding: clamp(10px,2.5vw,15px) clamp(32px,8vw,64px);
  font-family: var(--font);
  font-size: clamp(0.8rem, 2.5vw, 1rem);
  font-weight: 600;
  letter-spacing: 0.2em;
  cursor: pointer;
  border-radius: 2px;
  transition: transform 0.15s, border-color 0.15s;
  animation: fadeUp 0.6s 0.8s both;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.btn-secondary:hover  { border-color: var(--white); transform: scale(1.03); }
.btn-secondary:active { transform: scale(0.97); }

.menu-info {
  font-size: clamp(0.6rem, 2vw, 0.8rem);
  color: var(--grey-3);
  letter-spacing: 0.15em;
  animation: fadeUp 0.6s 0.85s both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}

/* ═══════════════════════════════════════
   HUD
═══════════════════════════════════════ */
#hud {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(8px,2vw,14px) clamp(12px,3vw,24px);
  background: var(--black);
  border-bottom: 1px solid var(--grey-2);
  z-index: 100;
}
#hud-score {
  font-size: clamp(1.4rem, 5vw, 2.2rem);
  font-weight: 900;
  letter-spacing: 0.04em;
}
#hud-timer {
  font-size: clamp(1rem, 4vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0.05em;
}
#hud-progress {
  flex: 1;
  height: 3px;
  background: var(--grey-2);
  border-radius: 2px;
  overflow: hidden;
}
#hud-bar {
  height: 100%;
  background: var(--white);
  width: 0%;
  transition: width 0.4s linear;
}

/* ═══════════════════════════════════════
   GAME SCREEN
═══════════════════════════════════════ */
#screen-game {
  flex-direction: column;
  justify-content: flex-start;
  align-items: stretch;
  padding-top: clamp(48px, 10vw, 72px);
}

#game-label {
  position: fixed;
  top: clamp(52px, 11vw, 80px);
  left: 50%;
  transform: translateX(-50%);
  font-size: clamp(0.5rem, 1.8vw, 0.75rem);
  letter-spacing: 0.3em;
  color: var(--grey-3);
  text-transform: uppercase;
  z-index: 99;
  pointer-events: none;
  white-space: nowrap;
}

#game-area {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

/* ═══════════════════════════════════════
   TRANSITION OVERLAY
═══════════════════════════════════════ */
#transition-overlay {
  position: fixed;
  inset: 0;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
#transition-overlay.show {
  opacity: 1;
  pointer-events: all;
}
#transition-text {
  font-size: clamp(1.5rem, 8vw, 4rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-align: center;
  padding: 1rem;
}

/* ═══════════════════════════════════════
   RESULTS SCREEN
═══════════════════════════════════════ */
.results-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(6px, 1.5vh, 14px);
  padding: 0.6rem 1.2rem;
  width: 100%;
  max-width: 480px;
}
.results-title {
  font-size: clamp(1.8rem, 6vh, 4rem);
  font-weight: 900;
  letter-spacing: 0.05em;
}
.results-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.results-btns .btn-primary {
  padding: clamp(10px,2vh,14px) clamp(24px,5vw,40px);
  font-size: clamp(0.75rem,2vw,0.95rem);
  animation: none;
}
.results-btns .btn-secondary {
  padding: clamp(10px,2vh,14px) clamp(24px,5vw,40px);
  font-size: clamp(0.75rem,2vw,0.95rem);
}
.results-score-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.results-score-label {
  font-size: clamp(0.55rem, 2vw, 0.75rem);
  letter-spacing: 0.3em;
  color: var(--grey-4);
  text-transform: uppercase;
}
.results-score-number {
  font-size: clamp(3.5rem, 15vw, 8rem);
  font-weight: 900;
  line-height: 1;
}
.results-breakdown {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  border-top: 1px solid var(--grey-2);
  padding-top: clamp(10px, 2vw, 16px);
}
.breakdown-row {
  display: flex;
  justify-content: space-between;
  font-size: clamp(0.6rem, 2.2vw, 0.85rem);
  color: var(--grey-4);
  letter-spacing: 0.1em;
  padding: 4px 0;
}
.breakdown-row span:last-child {
  color: var(--white);
  font-weight: 700;
}

/* ═══════════════════════════════════════
   MINI-GAME COMMON STYLES
═══════════════════════════════════════ */

/* --- Tap Target --- */
.tap-target {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.08s;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.tap-target:active { transform: scale(0.88); }

/* --- Color Match card --- */
.color-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 3vw, 24px);
  width: 100%;
  height: 100%;
}
.color-word {
  font-size: clamp(2.5rem, 10vw, 6rem);
  font-weight: 900;
  letter-spacing: 0.05em;
  pointer-events: none;
}
.color-choices {
  display: flex;
  gap: clamp(10px, 3vw, 24px);
  flex-wrap: wrap;
  justify-content: center;
}
.color-btn {
  appearance: none;
  border: 2px solid var(--white);
  background: var(--black);
  color: var(--white);
  font-family: var(--font);
  font-size: clamp(0.65rem, 2.5vw, 1rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  padding: clamp(10px,2.5vw,16px) clamp(20px,5vw,40px);
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.1s, color 0.1s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.color-btn:active { transform: scale(0.93); }
.color-btn.correct { background: var(--white); color: var(--black); }
.color-btn.wrong   { border-color: var(--grey-3); color: var(--grey-3); }

/* --- Sequence memory --- */
.sequence-grid {
  display: grid;
  gap: clamp(8px, 2vw, 16px);
}
.seq-cell {
  background: var(--grey-2);
  border: 1px solid var(--grey-3);
  border-radius: 4px;
  cursor: pointer;
  aspect-ratio: 1;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.1s, border-color 0.1s;
}
.seq-cell.lit   { background: var(--white); border-color: var(--white); }
.seq-cell.error { background: var(--grey-3); }
.seq-cell:active { opacity: 0.7; }

/* --- Counting --- */
.count-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 4vw, 32px);
  width: 100%;
  height: 100%;
}
.count-shapes {
  position: relative;
  width: min(80vw, 80vh, 360px);
  height: min(80vw, 80vh, 360px);
}
.count-shape {
  position: absolute;
  border: 2px solid var(--white);
}
.count-choices {
  display: flex;
  gap: clamp(8px, 2vw, 16px);
}
.count-btn {
  appearance: none;
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
  font-family: var(--font);
  font-size: clamp(1rem, 4vw, 1.8rem);
  font-weight: 700;
  width: clamp(44px, 12vw, 72px);
  height: clamp(44px, 12vw, 72px);
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.1s, color 0.1s;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.count-btn:active { transform: scale(0.93); }
.count-btn.correct { background: var(--white); color: var(--black); }
.count-btn.wrong   { border-color: var(--grey-3); color: var(--grey-3); }

/* --- Odd One Out --- */
.odd-grid {
  display: grid;
  gap: clamp(6px, 1.5vw, 12px);
  padding: clamp(8px, 2vw, 16px);
}
.odd-item {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 1.5px solid transparent;
  border-radius: 4px;
  aspect-ratio: 1;
  -webkit-tap-highlight-color: transparent;
  transition: border-color 0.1s;
}
.odd-item:active { opacity: 0.7; }
.odd-item svg { width: 60%; height: 60%; pointer-events: none; }

/* --- Avoid / Dodge --- */
#dodge-canvas {
  display: block;
  touch-action: none;
}

/* ═══════════════════════════════════════
   UTILITIES
═══════════════════════════════════════ */
.pulse {
  animation: pulse 0.25s ease;
}
@keyframes pulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.08); }
  100% { transform: scale(1); }
}

/* Low-end / reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}