:root {
  color-scheme: dark;
  --background: #0b0e13;
  --surface: #11151c;
  --surface-light: #18202b;
  --text: #f3f5f7;
  --muted: #a8b1bd;
  --accent: #7dd3fc;
  --accent-strong: #38bdf8;
  --border: rgba(255, 255, 255, 0.12);
  --max-width: 72rem;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--background);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: var(--text);
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 75% 20%, rgba(56, 189, 248, 0.12), transparent 30rem),
    linear-gradient(145deg, #090c10 0%, #111823 100%);
}

a {
  color: inherit;
}

.page-shell {
  width: min(calc(100% - 2rem), var(--max-width));
  min-height: 100vh;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero {
  max-width: 52rem;
  padding: clamp(5rem, 12vh, 9rem) 0 4rem;
}

.mark {
  display: flex;
  gap: 0.45rem;
  align-items: end;
  height: 2rem;
  margin-bottom: 2.5rem;
}

.mark span {
  display: block;
  width: 0.65rem;
  border-radius: 0.15rem;
  background: var(--accent);
}

.mark span:nth-child(1) {
  height: 55%;
}

.mark span:nth-child(2) {
  height: 100%;
}

.mark span:nth-child(3) {
  height: 75%;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  max-width: 16ch;
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 6.5rem);
  font-weight: 750;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.intro {
  max-width: 42rem;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.65;
}

.content {
  max-width: 42rem;
  margin: 2rem 0;
  color: var(--muted);
  line-height: 1.7;
}

.content p {
  margin: 0 0 1rem;
}

.contact-button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.25rem;
  border: 1px solid var(--accent);
  border-radius: 0.35rem;
  background: var(--accent);
  color: #071018;
  font-weight: 750;
  text-decoration: none;
  transition: transform 140ms ease, background 140ms ease;
}

.contact-button:hover {
  transform: translateY(-2px);
  background: var(--accent-strong);
}

.contact-button:focus-visible {
  outline: 3px solid var(--text);
  outline-offset: 4px;
}

.status {
  margin-top: 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 40rem) {
  footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .contact-button {
    transition: none;
  }
}