:root{
  --clr-bg:#fdfcff;
  --clr-primary:#4f46e5;
  --clr-primary-dark:#3730a3;
  --clr-text:#1f2937;
  --clr-muted:#6b7280;
  --clr-accent:#f59e0b;
  --radius:8px;
  --max-width:1100px;
  --font:'Inter',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);color:var(--clr-text);background:var(--clr-bg);line-height:1.6}
img{max-width:100%;display:block;border-radius:var(--radius)}
a{color:inherit;text-decoration:none}
.container{width:90%;max-width:var(--max-width);margin:auto}
.btn{background:var(--clr-primary);color:#fff;padding:.75rem 1.5rem;border-radius:var(--radius);font-weight:600;display:inline-block;transition:.25s}
.btn:hover{background:var(--clr-primary-dark)}
.btn.large{font-size:1.1rem;padding:.9rem 2rem}
.navbar{position:sticky;top:0;background:#ffffffee;backdrop-filter:blur(6px);z-index:10;border-bottom:1px solid #e5e7eb}
.nav-wrapper{display:flex;align-items:center;justify-content:space-between;padding:1rem 0}
.logo{font-weight:700;font-size:1.25rem;color:var(--clr-primary)}
.logo span{color:var(--clr-text)}
nav ul{list-style:none;display:flex;gap:1.5rem}
#mobile-menu{display:none;font-size:1.5rem;background:none;border:none;cursor:pointer}
.hero{padding:4rem 0 3rem}
.hero-grid{display:grid;gap:2rem;align-items:center}
@media(min-width:800px){.hero-grid{grid-template-columns:1fr 1fr}}
.hero-text h1{font-size:2.25rem;margin-bottom:1rem}
.hero-text em{color:var(--clr-primary)}
.hero-text p{margin-bottom:1.5rem;font-size:1.1rem;color:var(--clr-muted)}
.cards{display:grid;gap:2rem;margin-top:2rem}
@media(min-width:700px){.cards{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;border:1px solid #e5e7eb;padding:2rem;border-radius:var(--radius);box-shadow:0 2px 4px #0001}
.card .icon{font-size:2rem;margin-bottom:.5rem}
.services, .science, .about, .booking{padding:4rem 0}
h2{font-size:2rem;margin-bottom:1.5rem}
.steps{list-style:none;counter-reset:step;margin-left:0}
.steps li{counter-increment:step;margin-bottom:1rem;display:flex;align-items:flex-start}
.steps li::before{content:counter(step);background:var(--clr-primary);color:#fff;border-radius:50%;width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;margin-right:1rem;font-size:.9rem;flex-shrink:0}
.cite{margin-top:2rem;font-size:.9rem;color:var(--clr-muted)}
.grid{display:grid;gap:2rem;align-items:center}
@media(min-width:800px){.grid{grid-template-columns:1fr 1fr}}
.booking{background:var(--clr-primary);color:#fff;text-align:center}
.booking h2{color:#fff}
.booking .btn{background:#fff;color:var(--clr-primary)}
.booking .btn:hover{background:#f3f4f6}
.small{margin-top:1rem;font-size:.9rem;opacity:.9}
footer{background:#111827;color:#e5e7eb;padding:3rem 0 1rem;font-size:.9rem}
.footer-grid{display:grid;gap:2rem}
@media(min-width:700px){.footer-grid{grid-template-columns:repeat(3,1fr)}}
.copy{margin-top:2rem;text-align:center;font-size:.8rem;opacity:.7}
@media(max-width:700px){
  nav ul{position:absolute;top:100%;right:0;background:#fff;width:200px;flex-direction:column;padding:1rem;border:1px solid #e5e7eb;display:none}
  nav ul.open{display:flex}
  #mobile-menu{display:block}
}