:root {
  color-scheme: dark;
  --paper: #071d2a;
  --ink: #f3f8fb;
  --moss: #d9edf7;
  --muted: #b8d3e2;
  --line: rgba(224, 242, 251, 0.34);
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --sans: "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  background: #071d2a;
}

body {
  min-height: 100svh;
  margin: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  color: var(--ink);
  background:
    radial-gradient(ellipse 90% 65% at 8% 0%, rgba(51, 113, 132, 0.46) 0%, transparent 58%),
    linear-gradient(145deg, #255c6d 0%, #19495b 30%, #0e3243 56%, #08222f 78%, #05151e 100%);
  background-attachment: fixed;
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.top {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(1.25rem, 3.5vw, 2.5rem) clamp(1.25rem, 5vw, 4.5rem);
}

.top__brand {
  display: inline-flex;
  align-items: center;
  width: 2.25rem;
  height: 2.25rem;
  color: var(--moss);
}

.top__brand img {
  display: block;
  width: 100%;
  height: 100%;
}

.webmail {
  display: inline-flex;
  min-height: 1.8rem;
  align-items: center;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line);
  color: var(--muted);
  font: 500 0.58rem/1 var(--sans);
  letter-spacing: 0.13em;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color 160ms ease, color 160ms ease;
}

.webmail:hover {
  border-color: rgba(243, 248, 251, 0.8);
  color: #fff;
}

.webmail:focus-visible,
.top__brand:focus-visible {
  outline: 2px solid var(--moss);
  outline-offset: 4px;
}

.main {
  display: grid;
  place-items: center;
  padding: 2rem 1.25rem 3rem;
}

.hero {
  width: min(100%, 44rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero__logo {
  display: block;
  width: min(31rem, 88vw);
  height: auto;
  margin: -2rem 0;
}

.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;
}

.foot {
  padding: 0 1rem clamp(1.25rem, 3vw, 2rem);
  text-align: center;
}

.foot p {
  margin: 0;
  color: var(--muted);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

@media (max-width: 560px) {
  .top {
    padding: 1.1rem 1.2rem;
  }

  .main {
    padding: 1.5rem 1rem 2rem;
  }

  .hero__logo {
    width: min(28rem, 94vw);
    margin: -1rem 0;
  }

}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}