/*
 * Efomo — Page « site en cours de création » : présentation produit + liste d'attente.
 * Couleurs de marque : lagon #3FCFC0 · papier #EAEAE5 · encre #0E0E0E.
 */
:root {
  --lagon: #3FCFC0;
  --lagon-deep: #2BAFA1;
  --lagon-soft: rgba(63, 207, 192, 0.14);
  --lagon-glow: rgba(63, 207, 192, 0.40);
  --encre: #0E0E0E;
  --encre-soft: #1F1F22;
  --papier: #EAEAE5;
  --blanc: #FFFFFF;
  --neutral-400: #A8A29E;
  --neutral-500: #78716C;
  --neutral-600: #57534E;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", system-ui, sans-serif;
  --font-text: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", system-ui, sans-serif;
}

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

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  font-family: var(--font-text);
  color: var(--encre);
  background: var(--papier);
  background-image:
    radial-gradient(1000px 560px at 50% -12%, var(--lagon-glow), transparent 60%),
    radial-gradient(640px 420px at 100% 112%, var(--lagon-soft), transparent 70%);
  -webkit-font-smoothing: antialiased;
}

.cs-card {
  width: 100%;
  max-width: 760px;
  text-align: center;
}

/* En-tête de marque */
.cs-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 34px;
}
.cs-brand svg { width: 38px; height: 38px; display: block; }
.cs-brand span {
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Héro */
h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 6.4vw, 52px);
  font-weight: 780;
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
}
h1 .lagon { color: var(--lagon-deep); }

.cs-sub {
  font-size: clamp(15px, 2.2vw, 18px);
  line-height: 1.55;
  color: var(--neutral-600);
  max-width: 540px;
  margin: 0 auto 32px;
}

/* Formulaire liste d'attente */
.cs-form {
  display: flex;
  gap: 9px;
  max-width: 460px;
  margin: 0 auto;
}
.cs-form input[type="email"] {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-text);
  font-size: 15px;
  padding: 14px 17px;
  border: 1px solid #D6D3CD;
  border-radius: 14px;
  background: var(--blanc);
  color: var(--encre);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.cs-form input[type="email"]::placeholder { color: var(--neutral-400); }
.cs-form input[type="email"]:focus {
  border-color: var(--lagon);
  box-shadow: 0 0 0 3px var(--lagon-soft);
}
.cs-form button {
  flex: 0 0 auto;
  font-family: var(--font-text);
  font-size: 15px;
  font-weight: 650;
  padding: 14px 24px;
  border: none;
  border-radius: 14px;
  background: var(--encre);
  color: var(--blanc);
  cursor: pointer;
  transition: transform .12s, background .15s;
}
.cs-form button:hover { background: var(--encre-soft); transform: translateY(-1px); }
.cs-form button:active { transform: translateY(0); }
.cs-form button:disabled { opacity: .55; cursor: default; transform: none; }

.cs-msg {
  margin-top: 14px;
  font-size: 14px;
  min-height: 20px;
  font-weight: 600;
}
.cs-msg.ok { color: var(--lagon-deep); }
.cs-msg.err { color: #C2410C; }

.cs-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--neutral-400);
}

/* Séparateur « Trois certitudes » */
.cs-rule {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 54px auto 30px;
  max-width: 420px;
  color: var(--neutral-500);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.cs-rule::before, .cs-rule::after {
  content: "";
  flex: 1;
  height: 1px;
  background: #D6D3CD;
}

/* Cartes de présentation */
.cs-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  text-align: left;
}
.cs-feature {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(214, 211, 205, 0.8);
  border-radius: 18px;
  padding: 22px 20px;
}
.cs-feature .ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--lagon-soft);
  color: var(--lagon-deep);
  margin-bottom: 14px;
}
.cs-feature .ico svg { width: 18px; height: 18px; }
.cs-feature h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 7px;
}
.cs-feature p {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--neutral-600);
}

.cs-foot {
  margin-top: 46px;
  font-size: 12.5px;
  color: var(--neutral-400);
}

@media (max-width: 680px) {
  .cs-features { grid-template-columns: 1fr; }
}
@media (max-width: 460px) {
  .cs-form { flex-direction: column; }
  .cs-form button { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .cs-form button { transition: background .15s; }
}