@import url('https://fonts.googleapis.com/css2?family=Russo+One&family=Jura:wght@400;600;700&display=swap');

:root {
  --cyan:    #00f5ff;
  --magenta: #ff00a0;
  --yellow:  #f5e642;
  --dark:    #050510;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--dark);
  color: var(--cyan);
  font-family: 'Jura', sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  overflow-y: auto;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.15) 2px, rgba(0,0,0,0.15) 4px
  );
  pointer-events: none;
  z-index: 100;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,245,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

h1 {
  font-family: 'Russo One', sans-serif;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan), 0 0 24px var(--cyan), 0 0 60px rgba(0,245,255,0.4);
  animation: glitch 6s infinite;
}

@keyframes glitch {
  0%, 94%, 100% { transform: none; text-shadow: 0 0 8px var(--cyan), 0 0 24px var(--cyan), 0 0 60px rgba(0,245,255,0.4); }
  95%  { transform: translate(-3px,0) skewX(-2deg); text-shadow: -3px 0 var(--magenta), 3px 0 var(--yellow); }
  96%  { transform: translate(3px,0) skewX(2deg);  text-shadow:  3px 0 var(--magenta),-3px 0 var(--yellow); }
  97%  { transform: none; }
  98%  { transform: translate(-2px,1px); text-shadow: -2px 0 var(--magenta); }
  99%  { transform: none; }
}

.footer {
  font-size: .6rem;
  color: #2a2a4a;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.btn {
  font-family: 'Russo One', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--cyan);
  padding: 8px 12px;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 0 8px rgba(0,245,255,0.15);
}
.btn:hover  { background: rgba(0,245,255,0.08); box-shadow: 0 0 16px rgba(0,245,255,0.4); }
.btn:active { transform: scale(.97); }

/* Canvas game layout */
.wrapper {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 20px 20px max(40px, env(safe-area-inset-bottom, 20px));
  width: 100%;
  box-sizing: border-box;
}

.game-area {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.board-wrap { position: relative; touch-action: none; }

canvas#board {
  border: 1px solid rgba(0,245,255,0.3);
  box-shadow: 0 0 20px rgba(0,245,255,0.15);
  display: block;
  touch-action: none;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 100px;
}

.panel {
  border: 1px solid rgba(0,245,255,0.2);
  background: rgba(0,245,255,0.03);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.panel-label {
  font-family: 'Russo One', sans-serif;
  font-size: 0.5rem;
  letter-spacing: 0.15em;
  color: #555a8a;
  text-transform: uppercase;
}

.panel-val {
  font-family: 'Russo One', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--cyan);
  text-shadow: 0 0 10px var(--cyan);
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(5,5,16,0.86);
  z-index: 20;
}

.overlay-title {
  font-family: 'Russo One', sans-serif;
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.overlay-score {
  font-size: 0.75rem;
  color: #555a8a;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mobile-controls {
  display: none;
  gap: 10px;
  align-items: center;
}

.ctrl-btn {
  font-family: 'Russo One', sans-serif;
  color: var(--cyan);
  background: rgba(0,245,255,0.05);
  border: 1px solid rgba(0,245,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  transition: background 0.1s;
}
.ctrl-btn:active { background: rgba(0,245,255,0.2); }

@media (max-width: 520px) {
  /* Start from top so nav-bar aligns with corner decorations */
  body { justify-content: flex-start; }

  .mobile-controls { display: flex; }

  /* Stack game layout vertically on mobile */
  .game-area {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  /* Sidebar goes horizontal below the canvas */
  .sidebar {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    min-width: unset;
    width: 100%;
    gap: 10px;
  }

  .sidebar .panel {
    flex: 1 0 70px;
    min-width: 70px;
    max-width: 110px;
    align-items: center;
    text-align: center;
  }

  .sidebar .btn { width: 100%; }
}

/* ── Achievement toast ──────────────────────────────────────── */
.ach-toast {
  position: fixed;
  bottom: 24px;
  right: 16px;
  z-index: 9998;
  background: rgba(5,5,16,0.96);
  border: 1px solid var(--yellow);
  box-shadow: 0 0 24px rgba(245,230,66,0.3), inset 0 0 20px rgba(245,230,66,0.03);
  padding: 12px 16px;
  display: flex;
  gap: 14px;
  align-items: center;
  max-width: 280px;
  transform: translateX(calc(100% + 20px));
  transition: transform 0.45s cubic-bezier(0.34,1.56,0.64,1);
}
.ach-toast.visible { transform: translateX(0); }

@media (max-width: 520px) {
  .ach-toast {
    left: 16px;
    right: 16px;
    max-width: none;
    transform: translateY(calc(100% + 40px));
  }
  .ach-toast.visible { transform: translateY(0); }
}
.ach-icon { font-size: 2rem; flex-shrink: 0; }
.ach-body { display: flex; flex-direction: column; gap: 2px; }
.ach-label {
  font-family: 'Russo One', sans-serif;
  font-size: 0.42rem;
  color: var(--yellow);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.ach-name {
  font-family: 'Russo One', sans-serif;
  font-size: 0.78rem;
  color: var(--yellow);
  text-shadow: 0 0 8px rgba(245,230,66,0.5);
}
.ach-desc { font-size: 0.6rem; color: #666; margin-top: 1px; }

/* ── Nav bar (back to catalog) ─────────────────────────────── */
.nav-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  max-width: 760px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(0,245,255,0.12);
}
.nav-bar .btn {
  font-size: 0.55rem;
  padding: 5px 12px;
  white-space: nowrap;
}
.nav-breadcrumb {
  font-family: 'Russo One', sans-serif;
  font-size: 0.48rem;
  color: #2a2a4a;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ── Corner bracket decorations ────────────────────────────── */
.corner-deco {
  position: fixed;
  width: 22px;
  height: 22px;
  pointer-events: none;
  z-index: 200;
  animation: corner-pulse 3.5s ease-in-out infinite;
}
.corner-deco::before {
  content: '';
  position: absolute;
  width: 100%; height: 1px;
  background: var(--cyan);
  top: 0; left: 0;
}
.corner-deco::after {
  content: '';
  position: absolute;
  width: 1px; height: 100%;
  background: var(--cyan);
  top: 0; left: 0;
}
.corner-deco.tl { top: 14px; left: 14px; }
.corner-deco.tr { top: 14px; right: 14px; transform: scaleX(-1); }
.corner-deco.bl { bottom: 14px; left: 14px; transform: scaleY(-1); }
.corner-deco.br { bottom: 14px; right: 14px; transform: scale(-1,-1); }
@keyframes corner-pulse {
  0%, 100% { opacity: 0.35; }
  50%       { opacity: 0.75; }
}

/* ── Konami code message ────────────────────────────────────── */
.konami-msg {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  font-family: 'Russo One', sans-serif;
  font-size: clamp(0.9rem, 3vw, 1.2rem);
  font-weight: 900;
  letter-spacing: 0.2em;
  text-align: center;
  color: var(--cyan);
  text-shadow: 0 0 20px var(--cyan), 0 0 60px var(--cyan);
  background: rgba(5,5,16,0.92);
  padding: 30px 40px;
  border: 1px solid var(--cyan);
  box-shadow: 0 0 40px rgba(0,245,255,0.3), inset 0 0 30px rgba(0,245,255,0.04);
  pointer-events: none;
  animation: konami-in 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
.konami-msg span {
  display: block;
  font-size: 1.5rem;
  margin-top: 10px;
  color: var(--magenta);
  text-shadow: 0 0 20px var(--magenta);
}
.konami-msg.out { animation: konami-out 0.6s ease forwards; }
@keyframes konami-in {
  from { opacity: 0; transform: translate(-50%,-50%) scale(0.7); }
  to   { opacity: 1; transform: translate(-50%,-50%) scale(1); }
}
@keyframes konami-out {
  to { opacity: 0; transform: translate(-50%,-50%) scale(1.1); }
}
.konami-active h1 {
  animation: konami-rainbow 0.5s linear infinite !important;
}
@keyframes konami-rainbow {
  0%   { color: var(--cyan);    text-shadow: 0 0 20px var(--cyan); }
  33%  { color: var(--magenta); text-shadow: 0 0 20px var(--magenta); }
  66%  { color: var(--yellow);  text-shadow: 0 0 20px var(--yellow); }
  100% { color: var(--cyan);    text-shadow: 0 0 20px var(--cyan); }
}

/* ── Cursor trail ────────────────────────────────────────────── */
.cursor-trail {
  position: fixed;
  top: 0; left: 0;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
  pointer-events: none;
  z-index: 9000;
  will-change: transform;
}

/* ── Fullscreen button ──────────────────────────────────────── */
.fs-btn {
  font-size: 0.75rem;
  padding: 4px 8px;
}