/* NEON KALKAN — design tokens (retro-futurism: neon on deep space) */
:root {
  --bg: #05060f;
  --bg-2: #0a0c1c;
  --cyan: #00f5ff;
  --blue: #0080ff;
  --pink: #ff006e;
  --purple: #b967ff;
  --mint: #05ffa1;
  --amber: #ffb020;
  --danger: #ff2d55;
  --ink: #eaf6ff;
  --muted: #8ba0c4;
  --line: rgba(255, 255, 255, .08);
  --glass: rgba(255, 255, 255, .05);
  --radius: 16px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --font-display: 'Orbitron', system-ui, sans-serif;
  --font-body: 'Chakra Petch', system-ui, sans-serif;
}

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

[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  color-scheme: dark;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(60% 50% at 50% 0%, rgba(0, 128, 255, .18), transparent 70%),
    radial-gradient(50% 45% at 12% 100%, rgba(185, 103, 255, .16), transparent 70%),
    radial-gradient(45% 40% at 92% 92%, rgba(255, 0, 110, .14), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(to bottom, rgba(255, 255, 255, .035) 0 1px, transparent 1px 3px);
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: 5;
}

.app {
  position: relative;
  z-index: 1;
  height: 100dvh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 0;
}

/* ---------- Üst bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 6, 15, .72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.brand { display: flex; align-items: center; gap: 12px; }

.pip {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan), 0 0 22px rgba(0, 245, 255, .6);
  animation: pulse 2.4s var(--ease) infinite;
}

@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .5; transform: scale(.78); } }

.brand h1 {
  font-family: var(--font-display);
  font-size: clamp(14px, 2.4vw, 19px);
  font-weight: 800;
  letter-spacing: .16em;
  background: linear-gradient(92deg, var(--cyan), var(--blue) 45%, var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-text p {
  font-size: 10.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 3px;
}

.hud { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.stat {
  display: grid;
  gap: 2px;
  min-width: 66px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--glass);
  backdrop-filter: blur(10px);
}

.stat .label { font-size: 9px; letter-spacing: .2em; color: var(--muted); }
.stat strong { font-family: var(--font-display); font-size: 16px; font-weight: 700; }

.lives { display: flex; gap: 6px; padding-left: 4px; }

.lives i {
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 8px rgba(5, 255, 161, .8);
  transition: all .3s var(--ease);
}

.lives i.off { background: rgba(255, 255, 255, .12); box-shadow: none; transform: scale(.7); }

.actions { display: flex; gap: 8px; }

/* ---------- Sahne ---------- */
#stage { position: relative; min-height: 0; overflow: hidden; }
#game { display: block; position: absolute; inset: 0; touch-action: none; cursor: crosshair; }

.icon-btn {
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--glass);
  color: var(--ink);
  cursor: pointer;
  transition: transform .22s var(--ease), border-color .22s, color .22s, box-shadow .22s;
}

.icon-btn:hover { transform: translateY(-2px); border-color: rgba(0, 245, 255, .5); color: var(--cyan); box-shadow: 0 8px 22px rgba(0, 245, 255, .18); }
.icon-btn.off { opacity: .45; }
.icon-btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

/* ---------- Kaplama / panel ---------- */
.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: radial-gradient(70% 60% at 50% 50%, rgba(5, 6, 15, .55), rgba(5, 6, 15, .92));
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 4;
  animation: fadeUp .4s var(--ease) both;
}

.overlay[hidden] { display: none; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.panel {
  width: min(560px, 100%);
  padding: clamp(22px, 3.4vw, 34px);
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(160deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 30px 80px -30px rgba(0, 128, 255, .5), inset 0 1px 0 rgba(255, 255, 255, .1);
}

.kicker {
  font-size: 10px;
  letter-spacing: .34em;
  color: var(--cyan);
  text-shadow: 0 0 14px rgba(0, 245, 255, .7);
  margin-bottom: 14px;
}

.panel h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 6.4vw, 46px);
  font-weight: 900;
  letter-spacing: .06em;
  line-height: 1.05;
  background: linear-gradient(96deg, var(--cyan), var(--blue) 42%, var(--pink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 26px rgba(0, 128, 255, .45));
}

.lead { margin: 16px auto 22px; max-width: 46ch; font-size: 14.5px; line-height: 1.65; color: #c6d6ee; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 4px 0 24px;
}

.cell {
  display: grid;
  gap: 4px;
  padding: 12px 8px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--glass);
}

.cell span { font-size: 9px; letter-spacing: .18em; color: var(--muted); }
.cell strong { font-family: var(--font-display); font-size: 16px; color: var(--mint); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 34px;
  border: 1px solid rgba(0, 245, 255, .45);
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .18em;
  color: #02121a;
  background: linear-gradient(100deg, var(--cyan), var(--mint));
  cursor: pointer;
  box-shadow: 0 14px 40px -12px rgba(0, 245, 255, .75);
  transition: transform .24s var(--ease), box-shadow .24s var(--ease), filter .24s;
}

.btn:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 20px 52px -12px rgba(5, 255, 161, .8); filter: brightness(1.06); }
.btn:active { transform: translateY(-1px) scale(.99); }
.btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.hint { margin-top: 18px; font-size: 11.5px; line-height: 1.9; color: var(--muted); }

kbd {
  display: inline-block;
  padding: 1px 7px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: rgba(255, 255, 255, .06);
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--ink);
}

/* ---------- Bildirim ---------- */
.toast {
  position: absolute;
  left: 50%;
  top: 22px;
  transform: translateX(-50%);
  z-index: 6;
  padding: 9px 20px;
  border: 1px solid color-mix(in srgb, var(--c) 55%, transparent);
  border-radius: 999px;
  background: rgba(5, 6, 15, .8);
  backdrop-filter: blur(10px);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c);
  text-shadow: 0 0 14px var(--c);
  box-shadow: 0 0 30px -8px var(--c);
  animation: fadeUp .3s var(--ease) both;
}

/* ---------- Alt şerit ---------- */
.legend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px 22px;
  flex-wrap: wrap;
  padding: 10px 18px;
  border-top: 1px solid var(--line);
  background: rgba(5, 6, 15, .72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-size: 11.5px;
  color: var(--muted);
}

.legend-item b {
  color: var(--c);
  text-shadow: 0 0 12px var(--c);
  font-family: var(--font-display);
  font-size: 10.5px;
  letter-spacing: .1em;
  margin-right: 5px;
}

/* ---------- Uyarlanabilir ---------- */
@media (max-width: 860px) {
  .topbar { padding: 10px 12px; gap: 10px; }
  .stat { min-width: 56px; padding: 5px 9px; }
  .stat strong { font-size: 14px; }
  .stat .label { font-size: 8px; }
  .brand-text p { display: none; }
  .hud { order: 3; width: 100%; justify-content: space-between; }
  .legend { display: none; }
}

@media (max-width: 420px) {
  .stat { min-width: 0; padding: 4px 7px; border-radius: 10px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}