:root {
  color-scheme: dark;
  --bg: #01030a;
  --panel: rgba(5, 12, 24, 0.9);
  --line: rgba(147, 197, 253, 0.28);
  --text: #f7fbff;
  --muted: #a7bdd6;
  --blue: #38bdf8;
  --deep-blue: #1d4ed8;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.58);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--bg);
  background-image:
    linear-gradient(110deg, rgba(37, 99, 235, 0.22), transparent 30%, rgba(56, 189, 248, 0.16) 58%, rgba(255, 255, 255, 0.08) 82%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.02), rgba(0, 0, 0, 0.82)),
    url("/assets/brand/atom-bitz-blue-chrome.png");
  background-position: center top;
  background-size: cover, cover, min(1200px, 98vw) auto;
  background-attachment: fixed;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.hero,
.install-band,
.info-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.07), transparent 42%),
    var(--panel);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  gap: 26px;
  min-height: 58vh;
  align-content: space-between;
  padding: clamp(20px, 4vw, 44px);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-lockup img {
  width: 118px;
  height: 72px;
  object-fit: cover;
  object-position: 9% 63%;
  border: 1px solid rgba(147, 197, 253, 0.74);
  border-radius: 8px;
  box-shadow: 0 0 28px rgba(56, 189, 248, 0.34);
}

h1,
h2,
h3,
p {
  margin: 0;
}

.kicker,
.eyebrow {
  color: #93c5fd;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(30px, 5vw, 56px);
  line-height: 0.95;
}

h2 {
  max-width: 800px;
  font-size: clamp(30px, 6vw, 72px);
  line-height: 0.98;
}

h3 {
  margin-top: 6px;
  font-size: 20px;
}

.hero-copy {
  display: grid;
  gap: 12px;
}

.hero-copy p:last-child,
.install-band p,
.info-grid p,
.tip-note {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button,
.tip-note {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(147, 197, 253, 0.4);
  border-radius: 8px;
  padding: 0 16px;
  color: var(--text);
  font-weight: 900;
  text-decoration: none;
}

.button.primary {
  border-color: rgba(147, 197, 253, 0.86);
  background: linear-gradient(135deg, #dbeafe, var(--blue) 42%, var(--deep-blue));
  color: #020617;
  box-shadow: 0 0 22px rgba(56, 189, 248, 0.26);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 14px;
}

.info-grid article {
  padding: 18px;
}

.install-band {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin-top: 14px;
  padding: 18px;
}

.tip-note {
  border-style: dashed;
  white-space: nowrap;
}

@media (max-width: 760px) {
  .info-grid {
    grid-template-columns: 1fr;
  }

  .install-band {
    align-items: stretch;
    flex-direction: column;
  }

  .tip-note {
    white-space: normal;
  }
}