/* ═══════════════════════════════════════════════════════
   ABOUT — BENTO PAC-MAN PLAYGROUND
   Terminal intro · Scroll-driven journey · Pellet trail · Ghosts
   ═══════════════════════════════════════════════════════ */

:root {
  --cell: clamp(60px, 7.2vw, 96px);
  --gap: clamp(10px, 1vw, 16px);
  --grid-cols: 12;
  --grid-rows: 13;
}

/* ── Body modes ── */
.about-body {
  background: var(--bg);
  color: var(--ink);
  position: relative;
  overflow-x: hidden;
}
.about-body.intro-active {
  overflow: hidden;
  height: 100vh;
}
.about-body.game-active {
  overflow-y: auto;
  overflow-x: hidden;
}

/* Hide the navbar during intro */
.about-body.intro-active #navbar { opacity: 0; pointer-events: none; }

/* Soft ambient wash */
.about-body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 30% 20%, rgba(156, 138, 118, 0.06), transparent 60%),
    radial-gradient(ellipse 60% 50% at 70% 80%, rgba(110, 161, 212, 0.04), transparent 60%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 50%, var(--bg-warm) 100%);
  pointer-events: none;
}

/* ═══════════════════════════════════════════════════════
   TERMINAL INTRO
   ═══════════════════════════════════════════════════════ */
#terminal-intro {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: radial-gradient(ellipse at center, #0e0b08 0%, #050403 70%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), filter 0.8s ease;
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  color: #c8a368;
}
#terminal-intro.done {
  opacity: 0;
  filter: blur(8px);
  pointer-events: none;
}

/* CRT scanline overlay over the intro */
.terminal-scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.18) 3px,
    rgba(0, 0, 0, 0.18) 4px
  );
  mix-blend-mode: multiply;
  opacity: 0.7;
}

/* Pixel grid background */
.terminal-grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(200, 163, 104, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 163, 104, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  opacity: 0.7;
  animation: grid-pulse 6s ease-in-out infinite;
}
@keyframes grid-pulse {
  0%, 100% { opacity: 0.5; }
  50%      { opacity: 0.8; }
}

.terminal-frame {
  position: relative;
  width: min(720px, 94vw);
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.terminal-boot-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.65rem;
  letter-spacing: 0.32em;
  color: rgba(200, 163, 104, 0.55);
  text-transform: uppercase;
}
.boot-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #65d6ff;
  box-shadow: 0 0 8px #65d6ff;
  animation: boot-pulse 1.4s ease-in-out infinite;
}
@keyframes boot-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px #65d6ff; }
  50%      { opacity: 0.4; box-shadow: 0 0 14px #65d6ff; }
}

.terminal-window {
  background: rgba(8, 6, 4, 0.88);
  border: 1px solid rgba(200, 163, 104, 0.22);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 0 60px rgba(200, 163, 104, 0.06),
    0 30px 80px -20px rgba(0, 0, 0, 0.8),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(6px);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(20, 15, 10, 0.7);
  border-bottom: 1px solid rgba(200, 163, 104, 0.14);
}
.terminal-dot {
  width: 11px; height: 11px;
  border-radius: 50%;
}
.terminal-dot.red    { background: #e94560; }
.terminal-dot.yellow { background: #f4a261; }
.terminal-dot.green  { background: #65d6ff; }
.terminal-title {
  flex: 1;
  text-align: center;
  font-size: 0.7rem;
  color: rgba(200, 163, 104, 0.5);
  letter-spacing: 0.14em;
}

.terminal-body {
  padding: 1.7rem 1.5rem 1.4rem;
  min-height: 280px;
  font-size: clamp(0.78rem, 1vw, 0.9rem);
  line-height: 1.7;
}

.intro-line {
  white-space: pre-wrap;
  margin-bottom: 0.25rem;
  color: #c8a368;
  text-shadow: 0 0 6px rgba(200, 163, 104, 0.25);
}
.intro-line.success { color: #65d6ff; text-shadow: 0 0 6px rgba(101, 214, 255, 0.3); }
.intro-line.warn    { color: #f4a261; }
.intro-line.muted   { color: rgba(200, 163, 104, 0.45); }

.start-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.4rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--ease);
}
.start-row.ready {
  opacity: 1;
  pointer-events: auto;
}

#start-btn {
  background: transparent;
  border: 1px solid rgba(200, 163, 104, 0.5);
  color: #e8c879;
  padding: 0.75rem 1.6rem;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  border-radius: 4px;
  transition: all 0.35s var(--ease);
  text-shadow: 0 0 8px rgba(232, 200, 121, 0.4);
  position: relative;
  overflow: hidden;
}
#start-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent, rgba(200, 163, 104, 0.18), transparent);
  transform: translateX(-100%);
  transition: transform 0.55s var(--ease);
}
#start-btn:hover {
  background: rgba(200, 163, 104, 0.08);
  border-color: #c8a368;
  color: #fff;
  box-shadow: 0 0 30px rgba(200, 163, 104, 0.3);
  text-shadow: 0 0 12px rgba(255, 255, 255, 0.5);
}
#start-btn:hover::before { transform: translateX(100%); }

.start-hint {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(200, 163, 104, 0.5);
  text-transform: uppercase;
}

.terminal-footer-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: rgba(200, 163, 104, 0.3);
  text-transform: uppercase;
}

/* Blinking cursor */
.cursor-blink {
  display: inline-block;
  width: 8px;
  height: 1em;
  vertical-align: text-bottom;
  background: #c8a368;
  box-shadow: 0 0 6px #c8a368;
  animation: cursor-blink 0.8s steps(2) infinite;
  margin-left: 2px;
}
@keyframes cursor-blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }

/* ═══════════════════════════════════════════════════════
   PLAYGROUND VIEWPORT + WORLD
   ═══════════════════════════════════════════════════════ */
#playground-viewport {
  position: fixed;
  inset: 0;
  z-index: 2;
  overflow: hidden;
  pointer-events: none;
}

#playground-world {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  grid-template-columns: repeat(var(--grid-cols), minmax(0, 1fr));
  grid-template-rows: repeat(var(--grid-rows), minmax(var(--cell), auto));
  gap: var(--gap);
  padding: var(--gap);
  width: calc(var(--cell) * var(--grid-cols) + var(--gap) * (var(--grid-cols) + 1));
  will-change: transform;
  pointer-events: auto;
}

#playground-grid {
  grid-column: 1 / -1;
  grid-row: 1 / -1;
  position: relative;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(156, 138, 118, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(156, 138, 118, 0.04) 1px, transparent 1px);
  background-size: calc(var(--cell) + var(--gap)) calc(var(--cell) + var(--gap));
  opacity: 0.4;
  z-index: -1;
}

/* Invisible anchors used to measure grid row/col positions for path-building */
.grid-anchor {
  visibility: hidden;
  pointer-events: none;
  min-height: 0;
  min-width: 0;
  padding: 0;
  margin: 0;
}

/* Pac canvas overlay — fixed full-viewport, draws path/pellets/ghosts/pac */
#pac-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 5;
  pointer-events: none;
}

/* Scroll spacer — invisible but drives native scroll progress */
#playground-spacer {
  height: 700vh;
  width: 1px;
  position: relative;
  z-index: -10;
  pointer-events: none;
  opacity: 0;
}

/* ═══════════════════════════════════════════════════════
   BENTO WALLS
   ═══════════════════════════════════════════════════════ */
.bento-wall {
  grid-column: var(--x) / span var(--w);
  grid-row: var(--y) / span var(--h);
  position: relative;
  border-radius: clamp(14px, 1.2vw, 20px);
  padding: clamp(1.2rem, 2.2vw, 1.8rem);
  background:
    linear-gradient(160deg, rgba(20, 16, 12, 0.72), rgba(10, 8, 6, 0.58)),
    radial-gradient(circle at 10% 0%, rgba(156, 138, 118, 0.08), transparent 60%);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
  box-shadow:
    0 18px 40px -12px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.55rem;
  overflow: hidden;
  transform-origin: center;
  transition:
    border-color 0.55s var(--ease),
    transform 0.7s var(--ease-out),
    box-shadow 0.55s var(--ease),
    opacity 0.7s var(--ease-out);
  opacity: 0;
  transform: translateY(18px) scale(0.98);
}
.bento-wall.in-view { opacity: 1; transform: translateY(0) scale(1); }
.bento-wall.visited {
  border-color: rgba(200, 163, 104, 0.34);
  box-shadow:
    0 20px 40px -12px rgba(0, 0, 0, 0.55),
    0 0 36px -4px rgba(200, 163, 104, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.bento-wall::before {
  content: '';
  position: absolute;
  top: 0; left: 12%; right: 12%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
}

.card-num {
  position: absolute;
  top: 1.2rem; right: 1.4rem;
  font-family: 'Clash Display', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--walnut);
  opacity: 0.6;
}
.card-eyebrow {
  font-size: 0.62rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--walnut);
  font-weight: 500;
  margin-bottom: 0.4rem;
}
.card-heading {
  font-family: 'Clash Display', sans-serif;
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 0.6rem;
}
.card-heading-sm {
  font-family: 'Clash Display', sans-serif;
  font-size: clamp(1.3rem, 2.1vw, 1.85rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 0.4rem;
}
.card-heading em, .card-heading-sm em {
  font-style: normal;
  color: var(--walnut-soft);
  font-weight: 500;
}
.card-body {
  font-size: clamp(0.78rem, 0.92vw, 0.95rem);
  line-height: 1.65;
  color: var(--ink-mid);
  margin-bottom: 0.3rem;
}
.card-body-sm { font-size: clamp(0.74rem, 0.85vw, 0.88rem); line-height: 1.6; }
.card-body.quiet { color: var(--ink-dim); font-style: italic; }
.card-body strong { color: var(--ink); font-weight: 600; }
.card-body strong.accent { color: var(--walnut-soft); }

.hero-card {
  background:
    radial-gradient(circle at 20% 10%, rgba(156, 138, 118, 0.12), transparent 60%),
    radial-gradient(circle at 80% 90%, rgba(110, 161, 212, 0.05), transparent 50%),
    linear-gradient(160deg, rgba(22, 18, 14, 0.78), rgba(12, 10, 8, 0.58));
}

.card-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.8rem; }
.tag {
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--ink-dim);
  border: 1px solid rgba(236, 228, 214, 0.08);
  padding: 4px 11px;
  border-radius: 40px;
  transition: border-color 0.4s var(--ease), color 0.4s;
}
.bento-wall.visited .tag {
  border-color: rgba(156, 138, 118, 0.22);
  color: var(--ink-mid);
}

.belief-list { display: flex; flex-direction: column; gap: 0.55rem; margin-top: 0.6rem; }
.belief-row {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.5rem 0.7rem;
  border-left: 1px solid rgba(156, 138, 118, 0.18);
  transition: border-color 0.4s var(--ease), background 0.4s;
}
.belief-row:hover {
  border-left-color: var(--walnut);
  background: rgba(156, 138, 118, 0.04);
}
.belief-k {
  font-family: 'Clash Display', sans-serif;
  font-size: 0.74rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--walnut-soft);
  flex-shrink: 0; min-width: 90px;
}
.belief-v { font-size: 0.82rem; color: var(--ink-mid); line-height: 1.5; }

.cta-card {
  background:
    radial-gradient(circle at 50% 100%, rgba(200, 163, 104, 0.12), transparent 60%),
    linear-gradient(160deg, rgba(28, 22, 16, 0.82), rgba(14, 11, 8, 0.62));
  justify-content: space-between;
}
.world-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  align-self: flex-start;
  background: var(--walnut-dark);
  color: #fff;
  text-decoration: none;
  padding: 0.8rem 1.6rem;
  border-radius: 54px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-top: auto;
  transition: background 0.4s var(--ease), transform 0.4s var(--ease), box-shadow 0.4s;
  border: 1px solid rgba(255, 255, 255, 0.04);
}
.world-cta:hover { background: var(--walnut); box-shadow: 0 12px 30px -8px rgba(156, 138, 118, 0.4); }
.world-cta svg { transition: transform 0.4s var(--ease); }
.world-cta:hover svg { transform: translateX(4px); }

.ornament-wall {
  background: linear-gradient(135deg, rgba(16, 13, 10, 0.55), rgba(10, 8, 6, 0.4));
  border-color: rgba(156, 138, 118, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
}
.ornament-text {
  font-family: 'Clash Display', sans-serif;
  font-size: clamp(0.6rem, 0.85vw, 0.78rem);
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--walnut);
  opacity: 0.4;
  white-space: nowrap;
}

/* ═══════════════════════════════════════════════════════
   HUD / HINT / MINIMAP / TOAST
   ═══════════════════════════════════════════════════════ */
#playground-hud {
  position: fixed;
  top: 100px;
  left: 50%;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 1.4rem;
  padding: 0.65rem 1.8rem;
  background: linear-gradient(135deg, rgba(16, 13, 10, 0.75), rgba(10, 8, 6, 0.6));
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border: 1px solid var(--glass-border);
  border-radius: 60px;
  font-size: 0.75rem;
  opacity: 0;
  transform: translateX(-50%) translateY(-100%);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.about-body.game-active #playground-hud {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.hud-segment {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 90px;
}
.hud-label {
  font-size: 0.52rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-dim);
  font-weight: 500;
}
.hud-value {
  font-family: 'Clash Display', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--walnut-soft);
  letter-spacing: 0.02em;
  transition: color 0.4s var(--ease), transform 0.4s var(--ease-spring);
}
.hud-value.pop {
  color: var(--walnut-amber);
  transform: scale(1.18);
}
.hud-divider {
  width: 1px;
  height: 28px;
  background: rgba(236, 228, 214, 0.08);
}

#playground-hint {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.6rem 1.4rem;
  background: rgba(8, 6, 4, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s var(--ease);
}
.about-body.game-active #playground-hint {
  opacity: 0.85;
  animation: hint-fade-out 0.9s var(--ease-out) forwards 7s;
}
.hint-keys { display: flex; gap: 4px; }
.hint-key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border: 1px solid rgba(156, 138, 118, 0.3);
  border-radius: 5px;
  font-size: 0.65rem;
  color: var(--walnut-soft);
  font-weight: 700;
  font-family: 'Clash Display', sans-serif;
}
.hint-text {
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
}
@keyframes hint-fade-out {
  from { opacity: 0.85; }
  to   { opacity: 0; }
}

#playground-minimap {
  position: fixed;
  bottom: 26px;
  left: 26px;
  z-index: 100;
  width: 140px;
  height: 100px;
  background: rgba(8, 6, 4, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
  padding: 6px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.about-body.game-active #playground-minimap {
  opacity: 0.94;
  transform: translateY(0);
}
#minimap-canvas { display: block; width: 100%; height: 100%; border-radius: 6px; }
.minimap-label {
  position: absolute;
  top: 8px; right: 10px;
  font-size: 0.5rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--walnut);
  opacity: 0.7;
  font-weight: 500;
}

#milestone-toast {
  position: fixed;
  top: 50%;
  right: 30px;
  transform: translateY(-50%) translateX(120%);
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.4rem;
  background: linear-gradient(135deg, rgba(28, 22, 16, 0.92), rgba(16, 13, 10, 0.8));
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  border: 1px solid rgba(200, 163, 104, 0.25);
  border-radius: 14px;
  min-width: 220px;
  box-shadow:
    0 20px 50px -10px rgba(0, 0, 0, 0.5),
    0 0 40px -10px rgba(200, 163, 104, 0.18);
  transition: transform 0.65s var(--ease-spring);
  pointer-events: none;
}
#milestone-toast.show { transform: translateY(-50%) translateX(0); }
.toast-icon {
  font-size: 1.4rem;
  color: var(--walnut-amber);
  filter: drop-shadow(0 0 8px rgba(200, 163, 104, 0.5));
}
.toast-content { display: flex; flex-direction: column; gap: 2px; }
.toast-label {
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-dim);
  font-weight: 500;
}
.toast-title {
  font-family: 'Clash Display', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.005em;
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  :root { --cell: clamp(50px, 8vw, 70px); --gap: 10px; }
  .hero-card .card-heading { font-size: clamp(1.4rem, 3.2vw, 2.2rem); }
  .terminal-frame { width: min(560px, 94vw); }
}
@media (max-width: 768px) {
  :root { --cell: clamp(46px, 9vw, 64px); --gap: 8px; }
  #playground-hud { top: 80px; gap: 0.7rem; padding: 0.5rem 1rem; }
  .hud-segment { min-width: 60px; }
  .hud-value { font-size: 0.78rem; }
  .hud-label { font-size: 0.45rem; }
  #playground-hint { bottom: 16px; padding: 0.45rem 0.9rem; gap: 0.5rem; }
  .hint-text { font-size: 0.58rem; max-width: 50vw; }
  #playground-minimap { width: 100px; height: 72px; bottom: 18px; left: 18px; }
  #milestone-toast { right: 14px; min-width: 180px; padding: 0.8rem 1rem; }
  .bento-wall { padding: 0.7rem 0.85rem; }
  .card-num { top: 0.7rem; right: 0.8rem; font-size: 0.55rem; }
  .card-eyebrow { font-size: 0.52rem; }
  .card-heading { font-size: clamp(1.1rem, 4vw, 1.6rem); }
  .card-heading-sm { font-size: clamp(0.85rem, 3vw, 1.1rem); }
  .card-body { font-size: 0.7rem; line-height: 1.5; }
  .belief-k { min-width: 60px; font-size: 0.58rem; }
  .belief-v { font-size: 0.65rem; }
  .tag { font-size: 0.55rem; padding: 3px 8px; }
  .world-cta { font-size: 0.7rem; padding: 0.6rem 1.1rem; }
  .terminal-body { padding: 1.3rem 1rem; min-height: 220px; }
  #start-btn { padding: 0.6rem 1.2rem; font-size: 0.7rem; }
}

@media (prefers-reduced-motion: reduce) {
  .terminal-grid-bg, .boot-dot, .cursor-blink { animation: none !important; }
}