:root {
  --bg: #05070a;
  --text: #f4f7fb;
  --muted: #a7b0bc;
  --orange: #ff6a00;
  --orange-hot: #ff9a21;
  --silver: #d7dce3;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: #05070a;
  overflow-x: hidden;
}

.page-shell {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(3,5,8,0), rgba(3,5,8,0)),
    radial-gradient(circle at 50% 42%, rgba(255,112,18,.20), transparent 12rem),
    url("../img/backgrounds/naos-background.jpg") center / cover no-repeat;
  position: relative;
}

.page-shell::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 42%, rgba(255,88,0,.25), transparent 20rem),
    radial-gradient(circle at 90% 45%, rgba(255,88,0,.22), transparent 18rem),
    linear-gradient(90deg, rgba(0,0,0,.28), transparent 24%, transparent 76%, rgba(0,0,0,.28));
  mix-blend-mode: screen;
}

.page-shell::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 100% 4px;
  opacity: .26;
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(28px, 5vw, 76px) 24px;
  isolation: isolate;
  position: relative;
}

.brand-block {
  width: min(920px, 92vw);
  text-align: center;
  transform: translateY(1.5vh);
}

.brand-art {
  display: block;
  width: min(700px, 78vw);
  height: auto;
  margin: 0 auto;
  border: 0;
  filter:
    drop-shadow(0 18px 32px rgba(0,0,0,.48))
    drop-shadow(0 0 26px rgba(255,95,10,.18));
}

.separator {
  width: min(520px, 70vw);
  height: 1px;
  margin: clamp(22px, 3.2vw, 42px) auto clamp(22px, 2.4vw, 34px);
  background: linear-gradient(90deg, transparent, rgba(255,106,0,.35), rgba(255,255,255,.32), rgba(255,106,0,.35), transparent);
  position: relative;
  box-shadow: 0 0 22px rgba(255,106,0,.32);
}

.separator span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: var(--orange-hot);
  box-shadow: 0 0 12px 3px rgba(255,106,0,.75), 0 0 34px 8px rgba(255,106,0,.30);
}

h1 {
  margin: 0;
  font-size: clamp(1.55rem, 3.1vw, 3.35rem);
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: clamp(.18em, .85vw, .52em);
  font-weight: 650;
  color: var(--silver);
  text-shadow:
    0 2px 0 rgba(0,0,0,.8),
    0 0 18px rgba(255,255,255,.20),
    0 0 28px rgba(255,106,0,.12);
}

.subline {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: clamp(.78rem, 1.2vw, .98rem);
  letter-spacing: .22em;
  text-transform: uppercase;
  opacity: .88;
}

.ambient {
  position: absolute;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,106,0,.18), transparent 62%);
  filter: blur(12px);
  z-index: -1;
  opacity: .72;
}
.ambient-one { top: 16%; left: 10%; }
.ambient-two { bottom: 10%; right: 12%; }

@media (max-width: 700px) {
  .page-shell { background-position: center; }
  .brand-art { width: min(560px, 92vw); }
  .brand-block { transform: none; }
  h1 { letter-spacing: .24em; }
  .subline { letter-spacing: .16em; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}