:root{
  /* Palette douce: blanc / gris / bleu eau */
  --bg: #f7fafc;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: rgba(15, 23, 42, 0.10);

  --aqua: #2bb7c0;
  --aqua-dark: #1597a3;
  --aqua-soft: rgba(43, 183, 192, 0.14);

  --shadow: 0 12px 30px rgba(15, 23, 42, 0.10);
  --radius: 18px;

  --font-body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --font-title: "Cinzel", Georgia, "Times New Roman", serif;

  --container: 1100px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; text-underline-offset: 3px; }

.container{
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

/* Header */
.site-header{
  position: sticky;
  top:0;
  z-index: 50;
  background: rgba(247,250,252,0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding: 14px 0;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.brand-logo{
  width:44px;
  height:44px;
  object-fit:contain;
  filter: drop-shadow(0 6px 10px rgba(15,23,42,0.15));
}
.brand-text{ display:flex; flex-direction:column; }
.brand-name{
  font-family: var(--font-title);
  letter-spacing: 0.02em;
  font-weight: 700;
  font-size: 18px;
}
.brand-tagline{
  font-size: 12px;
  color: var(--muted);
}

.nav{
  display:flex;
  align-items:center;
  gap:16px;
}
.nav a{
  color: rgba(31,41,55,0.85);
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 12px;
}
.nav a:hover{
  background: rgba(43,183,192,0.10);
  text-decoration:none;
}

.header-cta{
  display:none;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border-radius: 14px;
  padding: 12px 16px;
  font-weight: 600;
  border: 1px solid transparent;
  text-decoration:none !important;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease, border-color .12s ease;
}
.btn:active{ transform: translateY(1px); }

.btn-primary{
  background: linear-gradient(135deg, var(--aqua), #86dbe0);
  color: #08363a;
  box-shadow: 0 10px 22px rgba(43,183,192,0.25);
}
.btn-primary:hover{
  box-shadow: 0 14px 26px rgba(43,183,192,0.33);
}

.btn-soft{
  background: rgba(43,183,192,0.14);
  border-color: rgba(43,183,192,0.25);
  color: #0c4a50;
}
.btn-soft:hover{
  background: rgba(43,183,192,0.18);
}

.btn-ghost{
  background: transparent;
  border-color: rgba(15,23,42,0.16);
  color: rgba(31,41,55,0.9);
}
.btn-ghost:hover{
  background: rgba(15,23,42,0.04);
}

.w100{ width:100%; }

/* Hero */
.hero{
  position: relative;
  padding: 54px 0 28px;
  overflow:hidden;
  background:
    radial-gradient(900px 400px at 15% 20%, rgba(43,183,192,0.18), transparent 60%),
    radial-gradient(700px 380px at 85% 25%, rgba(134,219,224,0.20), transparent 60%),
    linear-gradient(180deg, #f7fafc 0%, #f7fafc 65%, #f1f6f8 100%);
  border-bottom: 1px solid var(--line);
}

.hero-grid{
  display:grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 26px;
  align-items: start;
}

.badge{
  display:inline-block;
  padding: 8px 12px;
  border: 1px solid rgba(43,183,192,0.25);
  background: rgba(255,255,255,0.6);
  border-radius: 999px;
  color: rgba(31,41,55,0.85);
  font-size: 13px;
}

.hero h1{
  margin: 14px 0 10px;
  font-family: var(--font-title);
  font-size: 44px;
  line-height: 1.12;
  letter-spacing: 0.01em;
}
.accent{
  color: var(--aqua-dark);
}

.lead{
  margin: 0 0 18px;
  font-size: 16.5px;
  color: rgba(31,41,55,0.86);
  max-width: 58ch;
}

.hero-actions{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 10px 0 18px;
}

.trust{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
}
.trust-item{
  background: rgba(255,255,255,0.55);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 12px;
  min-width: 170px;
}
.trust-title{
  font-size: 12px;
  color: var(--muted);
}
.trust-value{
  font-weight: 700;
  color: rgba(31,41,55,0.92);
}

/* Hero right card */
.hero-card{
  position: relative;
}
.hero-card-inner{
  background: rgba(255,255,255,0.80);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.hero-card h2{
  margin: 0 0 6px;
  font-family: var(--font-title);
  font-size: 20px;
}
.small{
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--muted);
}
.checklist{
  list-style: none;
  padding: 0;
  margin: 0;
  display:grid;
  gap: 10px;
}
.checklist li{
  padding-left: 26px;
  position: relative;
  color: rgba(31,41,55,0.9);
}
.checklist li::before{
  content:"✓";
  position:absolute;
  left:0;
  top:0;
  width: 20px;
  height: 20px;
  display:grid;
  place-items:center;
  border-radius: 8px;
  background: rgba(43,183,192,0.16);
  border: 1px solid rgba(43,183,192,0.25);
  color: #0c4a50;
  font-weight: 800;
  font-size: 12px;
}

.divider{
  height:1px;
  background: var(--line);
  margin: 16px 0;
}

.mini-cta-label{
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}
.mini-note{
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
}

/* Sections */
.section{
  padding: 46px 0;
}
.section-tint{
  background: linear-gradient(180deg, rgba(43,183,192,0.08), rgba(43,183,192,0.04));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-head{
  margin-bottom: 18px;
}
.section-head h2{
  margin:0 0 6px;
  font-family: var(--font-title);
  font-size: 28px;
  letter-spacing: 0.01em;
}
.section-head p{
  margin:0;
  color: var(--muted);
}

/* Cards */
.cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card{
  background: rgba(255,255,255,0.86);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 8px 20px rgba(15,23,42,0.06);
  padding: 18px;
}
.card h3{
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
}
.card p{
  margin:0;
  color: rgba(31,41,55,0.78);
}

/* Pricing */
.pricing{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.price-card{
  background: rgba(255,255,255,0.86);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 8px 20px rgba(15,23,42,0.06);
}
.price-card.featured{
  border-color: rgba(43,183,192,0.45);
  box-shadow: 0 16px 34px rgba(43,183,192,0.18);
  background: rgba(255,255,255,0.92);
}
.price-title{
  color: rgba(31,41,55,0.8);
  font-weight: 700;
}
.price-value{
  font-family: var(--font-title);
  font-size: 28px;
  margin-top: 6px;
  color: #0c4a50;
}
.price-sub{
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
}
.price-card ul{
  margin: 0;
  padding-left: 18px;
  color: rgba(31,41,55,0.82);
}
.note{
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
}

/* Steps */
.steps{
  margin:0;
  padding:0;
  list-style:none;
  display:grid;
  gap: 12px;
}
.steps li{
  display:flex;
  gap: 12px;
  align-items:flex-start;
  background: rgba(255,255,255,0.86);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 8px 20px rgba(15,23,42,0.06);
}
.step-n{
  min-width: 34px;
  height: 34px;
  border-radius: 12px;
  display:grid;
  place-items:center;
  background: rgba(43,183,192,0.16);
  border: 1px solid rgba(43,183,192,0.25);
  color: #0c4a50;
  font-weight: 800;
}
.steps h3{
  margin:0 0 4px;
  font-size: 16px;
}
.steps p{
  margin:0;
  color: rgba(31,41,55,0.78);
}

/* FAQ */
.faq{
  display:grid;
  gap: 10px;
}
.faq-item{
  background: rgba(255,255,255,0.86);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  box-shadow: 0 8px 20px rgba(15,23,42,0.06);
}
.faq-item summary{
  cursor:pointer;
  font-weight: 700;
}
.faq-item p{
  margin: 10px 0 0;
  color: rgba(31,41,55,0.78);
}

/* Contact */
.contact-grid{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 14px;
  align-items:start;
}
.contact-card{
  background: rgba(255,255,255,0.86);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 8px 20px rgba(15,23,42,0.06);
}
.contact-card h3{ margin:0 0 8px; }
.contact-line{
  margin-top: 10px;
  color: rgba(31,41,55,0.82);
}

.form{
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.field{
  display:grid;
  gap: 6px;
  margin-bottom: 12px;
}
label{
  font-size: 13px;
  color: rgba(31,41,55,0.82);
  font-weight: 600;
}
input, textarea{
  border: 1px solid rgba(15,23,42,0.16);
  border-radius: 14px;
  padding: 12px 12px;
  font: inherit;
  background: #ffffff;
  outline: none;
}
input:focus, textarea:focus{
  border-color: rgba(43,183,192,0.55);
  box-shadow: 0 0 0 4px rgba(43,183,192,0.14);
}
.muted{ color: var(--muted); }

/* Footer */
.site-footer{
  padding: 20px 0;
  border-top: 1px solid var(--line);
  background: rgba(255,255,255,0.55);
}
.footer-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: 12px;
  color: rgba(31,41,55,0.75);
  font-size: 13px;
}
.footer-links{
  display:flex;
  gap: 12px;
}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .cards, .pricing{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
  .nav{ display:none; }
  .header-cta{ display:inline-flex; }
  .hero h1{ font-size: 38px; }
}

@media (max-width: 520px){
  .hero h1{ font-size: 32px; }
  .trust-item{ min-width: 150px; }
}

select{
  border: 1px solid rgba(15,23,42,0.16);
  border-radius: 14px;
  padding: 12px 12px;
  font: inherit;
  background: #ffffff;
  outline: none;
}
select:focus{
  border-color: rgba(43,183,192,0.55);
  box-shadow: 0 0 0 4px rgba(43,183,192,0.14);
}