:root{
  --hud-glow: 0 0 16px rgba(0,229,255,0.5);
  --hud-notch: polygon(0 12px, 12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

body{
  background:
    radial-gradient(900px 500px at 85% -5%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 60%),
    radial-gradient(700px 450px at 10% 110%, color-mix(in srgb, var(--accent-2) 12%, transparent), transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 38px, color-mix(in srgb, var(--line) 35%, transparent) 38px 39px),
    var(--bg);
}

.section:nth-of-type(even){
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--panel) 40%, transparent));
}

/* Headings — Orbitron caps energy */
.hero-title, h1, h2{
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 800;
}
.hero-title, h2{
  background: linear-gradient(92deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
h3{ text-transform: uppercase; letter-spacing: 0.02em; font-weight: 700; }

/* Site header — HUD bar */
.site-header{
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--accent) 30%, transparent);
}

/* Hero — angular HUD panel */
.hero{
  background:
    linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  clip-path: var(--hud-notch);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 14%, transparent);
}

.facts .fact{
  background: var(--panel-2);
  border: 1px solid var(--line);
  clip-path: var(--hud-notch);
}
.facts .fact b{ color: var(--accent); text-shadow: var(--hud-glow); }

/* Cards / features — notched panels with 1px edges */
.card, .feature, .faq-item{
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: 0;
  clip-path: var(--hud-notch);
  position: relative;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card::before, .feature::before{
  content:""; position:absolute; left:0; top:0; bottom:0; width:3px;
  background: linear-gradient(var(--accent), var(--accent-2));
  box-shadow: var(--hud-glow);
}
.card:hover, .feature:hover{
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  box-shadow: var(--hud-glow), 0 10px 30px rgba(0,0,0,0.45);
}

.feature .icon{
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--panel-2));
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  border-radius: 6px;
  box-shadow: var(--hud-glow);
}

/* Badge — HUD chip */
.badge{
  background: color-mix(in srgb, var(--accent) 12%, var(--panel-2));
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 4px;
}

/* Buttons — cyan light-bar sweep on hover */
.btn{
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  position: relative;
  overflow: hidden;
  transition: box-shadow .2s ease, transform .12s ease, border-color .2s ease;
}
.btn::after{
  content:""; position:absolute; top:0; bottom:0; left:-60%; width:40%;
  background: linear-gradient(100deg, transparent, color-mix(in srgb, var(--accent) 70%, white), transparent);
  transform: skewX(-20deg); opacity:0; transition: left .5s ease, opacity .2s ease;
}
.btn:hover::after{ left:130%; opacity:.8; }
.btn-primary{
  background: var(--accent);
  color: var(--on-accent);
  border: 1px solid color-mix(in srgb, var(--accent) 70%, white);
  box-shadow: var(--hud-glow);
}
.btn-primary:hover{ box-shadow: 0 0 24px rgba(0,229,255,0.7); transform: translateY(-1px); }
.btn-ghost{
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
}
.btn-ghost:hover{ border-color: var(--accent-2); color: var(--accent-2); }

/* Tabs — HUD selector */
.tab{
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: all .18s ease;
}
.tab.active{
  background: color-mix(in srgb, var(--accent) 16%, var(--panel-2));
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--hud-glow);
}

/* Tiles — game grid HUD */
.tile{
  background: var(--panel-2);
  border: 1px solid var(--line);
  clip-path: var(--hud-notch);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.tile:hover{
  transform: translateY(-3px) scale(1.01);
  border-color: var(--accent);
  box-shadow: var(--hud-glow), 0 12px 28px rgba(0,0,0,0.5);
}
.tile .gp{ color: var(--accent-2); text-transform: uppercase; letter-spacing: 0.05em; }
.tile.noimg{
  background:
    repeating-linear-gradient(135deg, transparent 0 10px, color-mix(in srgb, var(--accent) 6%, transparent) 10px 11px),
    linear-gradient(160deg, var(--panel-2), var(--panel));
}
.tile.noimg .nm{ color: var(--text); text-shadow: 0 0 12px color-mix(in srgb, var(--accent) 40%, transparent); }

/* Tables */
.table th{
  background: color-mix(in srgb, var(--accent) 12%, var(--panel-2));
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-color: var(--line);
}
.table td{ border-color: var(--line); }

/* FAQ */
.faq-item{ clip-path: none; border-radius: 4px; }
.faq-q{ font-weight: 700; text-transform: uppercase; letter-spacing: 0.02em; }
.faq-item:hover{ border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }

/* Footer hairline */
.site-footer{
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--panel) 50%, transparent));
}