:root{
  --bg:#0c0c10; --text:#e9e9ef; --muted:#a4a4af; --accent:#ffffff; --header-h:64px;
}

/* Base */
*{box-sizing:border-box}
html,body{height:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);
  font:400 16px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial}

/* Ambient fallback gradient so page looks designed even without images */
body::before{content:""; position:fixed; inset:-40% -20%;
  background: radial-gradient(60% 60% at 70% 30%, #1a1a24 0%, #0c0c10 60%, #07070a 100%);
  z-index:-2; filter: blur(20px); opacity:.9}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Header / Nav */
.site-header{
  position:fixed; inset:0 0 auto 0; height:var(--header-h);
  display:grid; grid-template-columns:auto 1fr auto; align-items:center; gap:12px;
  padding:0 18px; z-index:1000;
  background:color-mix(in hsl, var(--bg) 78%, transparent);
  backdrop-filter: blur(6px); border-bottom:1px solid rgb(255 255 255 / 6%);
}
.logo{display:inline-flex; align-items:center; gap:10px; color:var(--text); text-decoration:none}
.logo img{display:block; width:36px; height:36px}

.site-nav{justify-self:end}
.menu{list-style:none; margin:0; padding:0; display:flex; gap:24px; align-items:center}
.menu a{color:var(--text); text-decoration:none; padding:10px 2px; letter-spacing:.04em; font-weight:500}
.menu a:hover,.menu a:focus-visible{color:var(--accent); outline:none}

/* Dropdown */
.has-submenu{position:relative}
.submenu{
  position:absolute; top:calc(100% + 10px); left:0; min-width:220px; padding:8px;
  background:rgb(20 20 24 / 96%); border:1px solid rgb(255 255 255 / 10%); border-radius:12px;
  display:grid; gap:2px; opacity:0; transform:translateY(6px); pointer-events:none;
  transition:opacity .2s ease, transform .2s ease;
}
.has-submenu:hover>.submenu,.has-submenu:focus-within>.submenu{opacity:1; transform:none; pointer-events:auto}
.submenu a{display:block; padding:10px 12px; border-radius:8px}
.submenu a:hover,.submenu a:focus-visible{background:rgb(255 255 255 / 10%)}

/* Mobile nav */
.nav-toggle{display:none}
.hamburger{display:none; width:40px; height:40px; justify-self:end; align-items:center; justify-content:center; cursor:pointer}
.hamburger span{display:block; width:22px; height:2px; background:var(--text); margin:4px 0; transition:transform .2s, opacity .2s}

/* Hero sections use CSS backgrounds so missing images don't show alt text */
.hero{
  position:relative; min-height:100svh;
  display:flex; align-items:center; justify-content:center; text-align:center; overflow:hidden;
  background-size:cover; background-position:center; background-repeat:no-repeat;
  isolation:isolate;
}
.hero::before{
  content:""; position:absolute; inset:0;
  background:linear-gradient(to bottom, rgb(0 0 0 / .45), rgb(0 0 0 / .25) 35%, rgb(0 0 0 / .55));
  z-index:0;
}
.hero-content{position:relative; z-index:1; padding:0 5vw; display:grid; gap:16px; place-items:center}
.hero-title{margin:0; text-transform:uppercase; letter-spacing:.15em; font-weight:600; line-height:1.1;
  font-size:clamp(28px,5vw,72px)}
.hero-tag{margin:0; color:var(--muted); font-size:clamp(14px,2.2vw,18px)}
.btn-cta{display:inline-block; padding:12px 22px; border-radius:999px; color:var(--bg); background:var(--text);
  text-decoration:none; font-weight:700; letter-spacing:.06em; border:1px solid rgb(255 255 255 / 18%)}
.btn-cta:hover,.btn-cta:focus-visible{background:var(--accent); outline:none}

/* Assign background images (works from /css/ path) */
#home { background-image: url("../images/hero_1.jpg"); }
#orbit{ background-image: url("../images/hero_2.jpg"); }
#reborn{ background-image: url("../images/hero_3.jpg"); }

/* Non-hero sections */
.section{padding:72px 6vw}
.section--narrow{max-width:920px; margin-inline:auto}
.section h2{margin:0 0 8px; font-size:clamp(22px,3.2vw,36px)}
.section p{margin:0; color:var(--muted)}
.site-footer{padding:40px 6vw; color:var(--muted); border-top:1px solid rgb(255 255 255 / 6%)}

/* Invisible anchor for #games */
.anchor{position:relative; width:0; height:0}

/* Responsive nav */
@media (max-width:900px){
  .hamburger{display:flex}
  .site-nav{position:fixed; inset:var(--header-h) 0 auto 0; background:rgb(15 15 20 / 96%);
    border-bottom:1px solid rgb(255 255 255 / 8%); transform:translateY(-120%); transition:transform .25s}
  .menu{flex-direction:column; align-items:stretch; padding:14px 16px; gap:8px}
  .menu a{padding:12px 4px}
  .nav-toggle:checked ~ .site-nav{transform:translateY(0)}
  .nav-toggle:checked + .hamburger span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-toggle:checked + .hamburger span:nth-child(2){opacity:0}
  .nav-toggle:checked + .hamburger span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .has-submenu{width:100%}
  .submenu{position:static; opacity:1; transform:none; pointer-events:auto; background:transparent; border:0; padding:0 0 8px}
  .submenu a{padding:10px 8px 10px 16px}
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  *{transition:none !important; animation:none !important}
}