@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500&display=swap");

:root {
  color-scheme: dark;
  font-family: "Montserrat", Arial, Helvetica, sans-serif;
  color: #e5ebf2;
  background: #0f315e;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* { box-sizing: border-box; }

html, body { margin: 0; min-width: 280px; }

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: url("./assets/oleum-contours.svg") center center / cover no-repeat;
  opacity: 1;
}

main {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding: 5rem 2rem 7rem;
}

.introduction {
  width: 100%;
  max-width: 38.75rem;
  margin-inline: auto;
}

h1 {
  color: #f4f6f9;
  font-family: Baskerville, "Baskerville Old Face", Georgia, "Times New Roman", serif;
  font-size: clamp(4.75rem, 8vw, 6.5rem);
  font-weight: 400;
  letter-spacing: -.045em;
  line-height: 1;
  margin: 0 0 2.5rem -.045em;
}

p {
  font-size: 1.0625rem;
  line-height: 1.85;
  letter-spacing: .005em;
  margin: 0;
  text-wrap: pretty;
}

.content-stage { display: grid; }

.content-stage > .page-content { grid-area: 1 / 1; }

.content-stage > [hidden] {
  display: block;
  visibility: hidden;
  pointer-events: none;
}

.content-toggle {
  -webkit-appearance: none;
  appearance: none;
  display: block;
  width: fit-content;
  margin: 2rem 0 0;
  padding: 0;
  border: none;
  border-radius: 0;
  background: none;
  color: #f4f6f9;
  font-family: "Montserrat", Arial, Helvetica, sans-serif;
  font-size: .9375rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: .01em;
  text-align: left;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: #849cba;
  text-underline-offset: .25em;
  text-decoration-thickness: 1px;
  transition: opacity 160ms ease;
}

.content-toggle:hover { opacity: .7; }

a:focus-visible,
button:focus-visible { outline: 2px solid #b7c7da; outline-offset: 5px; }

.contact-details {
  font-size: 1.0625rem;
  font-style: normal;
  line-height: 1.85;
  letter-spacing: .005em;
}

.contact-details p { line-height: 1.5; }
.contact-details p + p { margin-top: 1.25rem; }

.contact-details a {
  color: inherit;
  text-decoration-color: #849cba;
  text-underline-offset: .25em;
  text-decoration-thickness: 1px;
}

.contact-details a:hover { color: #fff; text-decoration-color: currentColor; }

::selection { color: #0f315e; background: #dbe5f1; }

@media (max-width: 600px) {
  main { padding: 4.5rem 1.75rem 6rem; }
  h1 { margin-bottom: 2rem; }
  p { font-size: 1rem; line-height: 1.85; }
  .contact-details { font-size: 1rem; }
  body::before { opacity: .75; }
}

@media (prefers-reduced-motion: no-preference) {
  .introduction { animation: arrive 700ms ease-out both; }
  @keyframes arrive {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
  }
}