:root {
  --noir: #05080B;
  --noir-2: #0B1116;
  --teal: #70C0C8;
  --teal-soft: rgba(112, 192, 200, 0.15);
  --blanc: #F0F0F0;
  --gris: #A0A0A0;
  --radius: 14px;
  --max: 980px;
}

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

body {
  font-family: "Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: radial-gradient(ellipse at top, #0B1620 0%, var(--noir) 60%) fixed, var(--noir);
  color: var(--blanc);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }

header.site {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 0; border-bottom: 1px solid rgba(112, 192, 200, 0.12);
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--blanc); font-weight: 600; letter-spacing: 0.25em; text-transform: uppercase; font-size: 14px; }
.brand:hover { text-decoration: none; }
.brand svg { width: 38px; height: 38px; }
nav a { color: var(--gris); margin-left: 22px; font-size: 14px; letter-spacing: 0.04em; }
nav a:hover, nav a.active { color: var(--teal); text-decoration: none; }

h1, h2, h3 { font-weight: 300; text-transform: uppercase; letter-spacing: 0.22em; color: var(--teal); }
h1 { font-size: clamp(30px, 6vw, 52px); margin: 56px 0 18px; text-align: center; }
h2 { font-size: 20px; margin: 48px 0 16px; }
h3 { font-size: 15px; margin-bottom: 8px; color: var(--blanc); letter-spacing: 0.14em; }
p.lead { color: var(--gris); text-align: center; max-width: 640px; margin: 0 auto 32px; font-size: 17px; }
p { margin-bottom: 14px; color: #D8D8D8; }

.hero { text-align: center; padding: 40px 0 10px; }
.hero .stars {
  position: relative; height: 0;
}

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin: 24px 0; }
.card {
  background: var(--noir-2); border: 1px solid rgba(112, 192, 200, 0.18);
  border-radius: var(--radius); padding: 24px;
}
.card .price { font-size: 30px; color: var(--teal); font-weight: 300; margin: 8px 0; }
.card .price small { font-size: 14px; color: var(--gris); }

.steps { counter-reset: step; list-style: none; display: grid; gap: 14px; margin: 24px 0; }
.steps li {
  counter-increment: step; background: var(--noir-2); border-radius: var(--radius);
  padding: 18px 22px 18px 70px; position: relative; border: 1px solid rgba(112, 192, 200, 0.12);
}
.steps li::before {
  content: counter(step); position: absolute; left: 20px; top: 50%; transform: translateY(-50%);
  width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--teal);
  color: var(--teal); display: grid; place-items: center; font-weight: 600;
}

.wave { display: flex; align-items: center; justify-content: center; gap: 4px; height: 56px; margin: 28px 0; }
.wave span { width: 4px; background: var(--teal); border-radius: 2px; opacity: 0.85; }

.btn {
  display: inline-block; background: var(--teal); color: var(--noir); font-weight: 600;
  padding: 14px 28px; border-radius: 999px; letter-spacing: 0.06em; border: none; cursor: pointer;
  font-size: 15px; font-family: inherit;
}
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--teal); border: 1px solid var(--teal); }
.cta { text-align: center; margin: 36px 0; }

.audio-list { display: grid; gap: 14px; margin: 20px 0; }
.audio-item {
  background: var(--noir-2); border-radius: var(--radius); padding: 18px 20px;
  border: 1px solid rgba(112, 192, 200, 0.12);
}
.audio-item p { margin: 6px 0 10px; color: var(--gris); font-size: 14px; }
audio { width: 100%; }
.placeholder { color: var(--gris); font-style: italic; font-size: 14px; }

form.demande { background: var(--noir-2); border-radius: var(--radius); padding: 28px; border: 1px solid rgba(112, 192, 200, 0.18); margin: 24px 0; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label { font-size: 13px; letter-spacing: 0.06em; color: var(--gris); text-transform: uppercase; }
.field input, .field select, .field textarea {
  background: var(--noir); color: var(--blanc); border: 1px solid rgba(112, 192, 200, 0.3);
  border-radius: 10px; padding: 12px 14px; font-family: inherit; font-size: 15px;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--teal); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .row { grid-template-columns: 1fr; } nav a { margin-left: 12px; font-size: 13px; } }
.estimate { background: var(--teal-soft); border-radius: 10px; padding: 14px 18px; margin: 8px 0 20px; color: var(--blanc); }
.estimate strong { color: var(--teal); }
.note { font-size: 13px; color: var(--gris); }
.hidden { display: none; }
.hp { position: absolute; left: -9999px; }

.ok { color: var(--teal); }
.err { color: #E88; }

footer.site { margin: 70px 0 30px; border-top: 1px solid rgba(112, 192, 200, 0.12); padding-top: 22px; color: var(--gris); font-size: 13px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
footer.site a { color: var(--gris); }