/* Reset minimal */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color: #fff;
  background: #111 url('img/fond-run.jpg') center/cover no-repeat fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-shadow: 0 2px 6px rgba(0,0,0,0.7);
}

.wrap {
  width: 100%;
  max-width: 920px;
  background: linear-gradient(180deg, rgba(0,0,0,0.35), rgba(0,0,0,0.5));
  border-radius: 14px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.6);
  text-align: center;
}

.welcome small {
  display: block;
  font-size: 14px;
  opacity: 0.9;
  margin-bottom: 6px;
  letter-spacing: 0.06em;
}

.welcome h1 {
  font-size: clamp(20px, 4vw, 34px);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.logo {
  width: 220px;
  max-width: 50%;
  height: auto;
  filter: drop-shadow(0 6px 16px rgba(0,0,0,0.6));
}

.construction {
  background: rgba(255,255,255,0.06);
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: clamp(14px, 2.5vw, 18px);
}

.fb {
  margin-top: 6px;
  display: inline-block;
  text-decoration: none;
  background: rgba(59,89,152,0.95);
  color: white;
  padding: 10px 16px;
  border-radius: 10px;
  font-weight: 600;
  transition: transform .14s ease, box-shadow .14s ease;
}

.fb:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(0,0,0,0.45);
}

.note {
  font-size: 12px;
  opacity: 0.88;
  margin-top: 10px;
}

/* Mobile */
@media (max-width: 420px){
  .wrap { padding: 20px; border-radius: 12px; }
  .logo { width: 160px; }
}