:root {
  --bg: #0b0b0b;
  --card: #101014;
  --muted: #bcbcbc;
  --accent: #8a6fb9;  /* violet/gris désaturé */
  --text: #e6e6e6;
}

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, Arial, sans-serif;
  line-height: 1.6;
}

main {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 6vh 2rem 2rem;
}

.card {
  max-width: 520px;
  width: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 14px;
  padding: 2.2rem 2rem 2rem;
  box-shadow: 0 4px 18px rgba(0,0,0,0.45);
}

header {
  margin-bottom: 1.5rem;
}

header h1 {
  font-size: 1.50rem;
  font-weight: 600;
  margin: 0 0 .35rem;
  color: var(--text);
  letter-spacing: 0.05em;
}

header p.subtitle {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

p {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0 0 1.1rem;
}

.actions {
  margin-top: 1.5rem;
  display: flex;
  gap: .8rem;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 118px;
  height: 42px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: all .2s ease;
}

.btn.primary {
  background: linear-gradient(145deg, #7c67a8, #6b5895);
  color: #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.5);
}

.btn.primary:hover {
  background: linear-gradient(145deg, #8a75b5, #7765a3);
  transform: translateY(-1px);
}

.btn.ghost {
  border: 1px solid rgba(255,255,255,.15);
  color: var(--text);
  background: rgba(255,255,255,0.02);
}

.btn.ghost:hover {
  background: rgba(255,255,255,0.05);
  transform: translateY(-1px);
}