:root {
  --fond-haut: #ffffff;
  --fond-bas: #dfe5ef;
  --encre: #1c2c3c;
  --encre-douce: #6b7995;
  --accent: #596581;
}

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

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

body {
  background: var(--fond-bas);
  color: var(--encre);
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.scene {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(1.25rem, 4vw, 2.25rem);
  padding: clamp(1.5rem, 5vw, 4rem);
  text-align: center;
  background:
    radial-gradient(ellipse 110% 80% at 50% 28%, var(--fond-haut) 0%, transparent 72%),
    linear-gradient(180deg, #eef2f8 0%, var(--fond-bas) 100%);
}

.logo {
  width: clamp(160px, 34vw, 300px);
  height: auto;
  filter: drop-shadow(0 14px 32px rgba(28, 44, 60, 0.18));
  animation: apparition 900ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.title {
  margin: 0;
  font-size: clamp(1.6rem, 5.5vw, 2.75rem);
  font-weight: 300;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  animation: apparition 900ms cubic-bezier(0.22, 1, 0.36, 1) 150ms both;
}

.title::after {
  content: "";
  display: block;
  width: 4.5rem;
  height: 1px;
  margin: clamp(0.9rem, 2.5vw, 1.4rem) auto 0;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.domain {
  margin: 0;
  color: var(--encre-douce);
  font-size: clamp(0.85rem, 2.5vw, 1rem);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  animation: apparition 900ms cubic-bezier(0.22, 1, 0.36, 1) 300ms both;
}

@keyframes apparition {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .logo, .title, .domain { animation: none; }
}