:root {
  --bg-start: #050505;
  --bg-end: #171717;
  --panel: rgba(0, 0, 0, 0.62);
  --text-main: #f6f6f6;
  --text-soft: #d9d9d9;
  --accent: #ef9600;
  --accent-strong: #c87900;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100svh;
  font-family: "Source Sans 3", Arial, sans-serif;
  background: radial-gradient(circle at 20% 10%, #252525 0%, var(--bg-start) 45%, var(--bg-end) 100%);
  color: var(--text-main);
}

.construction {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 1.25rem;
}

.construction-card {
  width: 100%;
  max-width: 36rem;
  text-align: center;
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 0.85rem;
  padding: 2rem 1.25rem;
  backdrop-filter: blur(3px);
}

h1 {
  margin: 0;
  font-family: "Oswald", "Arial Narrow", sans-serif;
  color: var(--accent);
  font-size: clamp(2rem, 9vw, 3.8rem);
  letter-spacing: 0.04em;
  line-height: 1.04;
}

p {
  margin: 1rem 0 0;
  color: var(--text-soft);
  font-size: clamp(1.1rem, 4.2vw, 1.45rem);
}

p a {
  color: var(--text-main);
  font-weight: 700;
}

.go-button {
  margin-top: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.8rem;
  background: var(--accent);
  color: #1e1300;
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 0.45rem;
  border: 2px solid var(--accent);
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.go-button:hover,
.go-button:focus-visible {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  transform: translateY(-1px);
}

.go-button:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

@media (min-width: 48rem) {
  .construction {
    padding: 2rem;
  }

  .construction-card {
    padding: 2.5rem 2rem;
  }
}

@media (min-width: 75rem) {
  .construction-card {
    max-width: 44rem;
    padding: 3rem 2.5rem;
  }
}