/* Holding placeholder. Everything in this file belongs to the current site and
   may be replaced wholesale by the next one; see DESIGN.md. */
:root {
  color-scheme: light;
  --paper: #f6f7f9;
  --ink: #15181d;
  --accent: #2456b3;
  --measure: 34rem;
  --gutter: clamp(1.25rem, 6vw, 4rem);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  background: var(--paper);
  color: var(--ink);
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  display: flex;
  flex-direction: column;
  padding: 0 var(--gutter);
}

.notice {
  flex: 1;
  width: 100%;
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(4rem, 18vh, 11rem) 0 4rem;
}

.notice__mark {
  width: 2.5rem;
  height: 0.25rem;
  margin: 0 0 2.25rem;
  background: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 1.4rem + 3vw, 3.25rem);
  font-weight: 650;
  line-height: 1.1;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.nowrap { white-space: nowrap; }

[hidden] { display: none !important; }

/* Opening artwork (Dmitrii's supplied poster), shown by intro.js and removed
   after 2 s + 4 s. Without the script's .intro class it never displays. The
   whole poster stays visible at any viewport shape (contain); the space around
   it is the same artwork, pre-blurred and dimmed, over its sampled sky-to-
   street colours. Decorative and never takes input. */
.splash { display: none; pointer-events: none; }

.intro .splash {
  display: grid;
  place-items: center;
  position: fixed;
  inset: 0;
  z-index: 10;
  background:
    linear-gradient(rgb(12 14 24 / 0.35), rgb(12 14 24 / 0.35)),
    url("/bremen-unity-backdrop-160.webp?v=5217552b59ae") center / cover,
    linear-gradient(#2d4b70, #645456 55%, #3b261d);
}

.splash img {
  display: block;
  width: min(100%, 177.78vh);
  width: min(100%, 177.78dvh);
  height: auto;
  aspect-ratio: 16 / 9;
  box-shadow: 0 1rem 3rem rgb(0 0 0 / 0.35);
}