@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;700;800&display=swap');

:root{
  --primary:#0066ac;
  --secondary:#faad42;
  --accent:#ffd836;
  --danger:#f26c42;

  --bg:#0b1220;
  --bg2:#070c16;
  --card:#0f172a;
  --text:#e5e7eb;
  --muted:#a1a1aa;
  --line:#1f2937;
  --shadow: 0 18px 50px rgba(0,0,0,.35);
}

html[data-theme="light"]{
  --bg:#f3f4f6;
  --bg2:#eef2f7;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --line:#e2e8f0;
  --shadow: 0 16px 40px rgba(2, 6, 23, .08);
}

html[data-theme="dark"]{
  --bg:#0b1220;
  --bg2:#070c16;
  --card:#0f172a;
  --text:#e5e7eb;
  --muted:#a1a1aa;
  --line:#1f2937;
  --shadow: 0 18px 50px rgba(0,0,0,.35);
}

*{box-sizing:border-box;font-family:"Cairo",system-ui}
body{
  margin:0;
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background:
    radial-gradient(900px 520px at 10% 0%, rgba(0,102,172,.16), transparent 60%),
    radial-gradient(800px 420px at 95% 15%, rgba(250,173,66,.18), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  color:var(--text);
  padding:18px 12px;
}

.swan-top-actions{
  position:fixed;
  top:14px;
  right:14px;
  z-index:50;
}
.theme-toggle{
  width:42px;height:42px;
  border-radius:14px;
  border:1px solid color-mix(in srgb, var(--line) 100%, transparent);
  background: color-mix(in srgb, var(--card) 85%, transparent);
  color: var(--text);
  display:grid;place-items:center;
  cursor:pointer;
  transition: transform .15s ease, border-color .15s ease;
}
.theme-toggle:hover{transform: translateY(-1px); border-color: color-mix(in srgb, var(--primary) 55%, var(--line));}
.theme-toggle:active{transform: translateY(0px) scale(.98);}

.main{
  width:min(460px, 100%);
  border:1px solid var(--line);
  border-radius:22px;
  background: color-mix(in srgb, var(--card) 92%, transparent);
  box-shadow: var(--shadow);
  overflow:hidden;
}

.title{
  padding:14px 16px 8px;
  text-align:center;
  border-bottom:1px solid color-mix(in srgb, var(--line) 100%, transparent);
}

h1{
  margin:0 0 6px;
  font-size:22px;
  font-weight:900;
  letter-spacing:.2px;
  color: color-mix(in srgb, var(--text) 95%, transparent);
}
h2{margin:0; font-size:14px; color:var(--muted)}
h6{margin:10px 0 0}

#score,#timer{
  width: 100%;
  max-width: 240px;
  border-radius:999px;
  padding:10px 12px;
  border:1px solid var(--line);
  background: color-mix(in srgb, var(--card) 88%, transparent);
  color: var(--text);
  font-weight:900;
  font-size:13px;
}
#score{
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
}
#score::after{content:"";}
#timer{
  border-color: color-mix(in srgb, var(--secondary) 55%, var(--line));
}
#timer.urgent{
  border-color: color-mix(in srgb, var(--danger) 60%, var(--line));
  color: var(--danger);
  animation: pulse .9s ease-in-out infinite;
}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.03)}}

.blocks{
  padding:14px 16px 18px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:12px;
}

.block{
  aspect-ratio: 1 / 1;
  border-radius:18px;
  border:1px solid var(--line);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  box-shadow: 0 10px 24px rgba(0,0,0,.10);
  overflow:hidden;
  position:relative;
}
.block:hover{
  border-color: color-mix(in srgb, var(--primary) 55%, var(--line));
}
.block img{
  width:100%;
  height:100%;
  object-fit:contain;
  transform: scale(.95);
  transition: transform .12s ease;
}
.block:active img{transform: scale(.9);}

#nav{
  padding:10px 16px 16px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:center;
}

@media (max-width:420px){
  .blocks{gap:10px}
  h1{font-size:20px}
}

.block.hit{background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 55%, var(--secondary)));border-color: color-mix(in srgb, var(--accent) 70%, var(--line));}