:root{
  --bg:#fff;
  --card:#ffffff;
  --muted:#6b7280;
  --accent1:#0ea5a3;   /* teal */
  --accent2:#ff7a59;   /* coral */
  --dark:#042029;
  --radius:12px;
  --shadow: 0 6px 18px rgba(2,6,23,0.08);
  --container:1200px;
  --gap:1.25rem;
}

/* base */
*{box-sizing:border-box}
body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial; margin:0;color:var(--dark);background:linear-gradient(180deg,#f6fbfb 0%, #ffffff 100%);}
.container{max-width:var(--container);margin:0 auto;padding:2rem;}
a{color:var(--accent1);text-decoration:none}
img{max-width:100%;height:auto;display:block}

/* header */
.site-header{background:linear-gradient(90deg,rgba(14,165,163,0.06), rgba(255,122,89,0.03));backdrop-filter: blur(2px);position:sticky;top:0;z-index:40;border-bottom:1px solid rgba(2,6,23,0.04)}
.header-inner{display:flex;align-items:center;gap:1rem;justify-content:space-between;padding:0.75rem 0;}
.brand .logo{height:46px;}
.nav{display:flex;gap:0.75rem;align-items:center}
.nav a{padding:0.6rem 0.9rem;border-radius:8px}
.nav a.btn-cta{background:linear-gradient(90deg,var(--accent1),var(--accent2));color:#fff;padding:0.65rem 0.95rem}
.nav-toggle{display:none;background:transparent;border:0;font-size:1.125rem}

/* hero */
.hero{padding:3.5rem 0;background:linear-gradient(180deg, rgba(14,165,163,0.04), rgba(255,122,89,0.01));}
.hero-grid{display:grid;grid-template-columns:1fr 380px;gap:2rem;align-items:center}
.hero-left h1{font-size:2.1rem;margin:0 0 0.5rem;color:var(--dark)}
.hero-left p{color:var(--muted);margin:0 0 1rem}
.hero-cta .btn{margin-right:0.5rem}
.btn{display:inline-block;padding:0.7rem 1.05rem;border-radius:10px;font-weight:600}
.btn-primary{background:linear-gradient(90deg,var(--accent1),var(--accent2));color:#fff}
.btn-outline{border:1.5px solid var(--accent1);color:var(--accent1);background:transparent}
.btn-sm{padding:0.45rem 0.7rem;font-size:0.9rem}

/* cards and grids */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1rem}
.card{background:var(--card);padding:1.25rem;border-radius:12px;box-shadow:var(--shadow)}
.small-cta{margin-top:1rem}

/* features list */
.features{margin-top:1rem;display:flex;gap:1rem;list-style:none;padding:0;color:var(--muted)}

/* cta banner */
.cta-banner{background:linear-gradient(90deg,var(--accent1),var(--accent2));padding:1rem 0;margin-top:2rem;border-radius:12px;color:#fff;text-align:center}

/* footer */
.site-footer{padding:2rem 0 3rem;margin-top:2rem;background:transparent;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem;align-items:start}
.footer-logo{height:48px}
.footer-nav a{display:block;color:var(--muted);margin-bottom:0.35rem}

/* other helpers */
.hero-right .hero-card{padding:1rem}
.cards-2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.charts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem;margin-top:1rem}
.chart-card{padding:1rem;background:var(--card);border-radius:12px;box-shadow:var(--shadow)}
.table-section{margin-top:1.25rem}

/* form */
.form-wrap{max-width:720px}
.contact-form label{display:block;margin-bottom:0.75rem}
.contact-form input, .contact-form textarea{width:100%;padding:0.75rem;border-radius:8px;border:1px solid #e6eef0;margin-top:0.35rem}
.form-feedback{margin-top:1rem;color:var(--accent2)}

/* responsive */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr; padding:1rem 0}
  .cards-3{grid-template-columns:1fr}
  .header-inner{padding:0.5rem 0}
  .nav a{display:none}
  .nav-toggle{display:inline-block}
  .nav.open a{display:block;padding:0.6rem 0.8rem}
}