:root {
  color-scheme: dark;
  --forest: #0f2f1e;
  --forest-deep: #071d13;
  --stone: #d9d2c2;
  --white: #ffffff;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  color: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  background:
    linear-gradient(145deg, rgba(255,255,255,.035) 0 1px, transparent 1px 17%),
    radial-gradient(circle at 75% 18%, #174a30 0, var(--forest) 32%, var(--forest-deep) 100%);
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(28px, 6vw, 80px) 22px;
}

.card {
  width: min(980px, 100%);
  text-align: center;
  padding: clamp(42px, 8vw, 84px) clamp(24px, 7vw, 76px);
  border: 1px solid rgba(217, 210, 194, .3);
  background: rgba(7, 29, 19, .52);
  box-shadow: 0 30px 80px rgba(0,0,0,.28);
  backdrop-filter: blur(10px);
}

.logo {
  display: block;
  width: min(720px, 100%);
  margin: 0 auto;
  background: #fff;
}

.rule {
  width: 72px;
  height: 2px;
  margin: clamp(34px, 6vw, 56px) auto 30px;
  background: var(--stone);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--stone);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.1rem, 6vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -.035em;
}

.intro {
  width: min(620px, 100%);
  margin: 24px auto 0;
  color: rgba(255,255,255,.82);
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.65;
}

.contacts {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 38px;
}

.contacts a {
  color: var(--stone);
  font-size: .95rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.contacts a:hover,
.contacts a:focus-visible { border-color: currentColor; }

@media (max-width: 620px) {
  .card { padding-inline: 18px; }
  .logo { width: 100%; }
  .contacts { flex-direction: column; }
}