*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:#222;line-height:1.6;background:#fff}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
h1,h2,h3{margin:0 0 .6em;line-height:1.2}
a{color:#0d5f61;text-decoration:none}
a:hover{text-decoration:underline}

/* Header */
.site-header{position:sticky;top:0;background:#fff;box-shadow:0 2px 6px rgba(0,0,0,.08);z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 20px;flex-wrap:wrap}
.logo{height:50px;width:auto;display:block}
.main-nav{display:flex;gap:24px;flex-wrap:wrap}
.main-nav a{color:#0d5f61;font-weight:600}
.header-phone{font-weight:700;color:#0d5f61;font-size:1.05rem}

/* Buttons */
.btn{display:inline-block;padding:14px 32px;border-radius:6px;font-weight:600;border:none;cursor:pointer;font-size:1rem;transition:background .2s,transform .1s}
.btn-primary{background:#17868a;color:#fff}
.btn-primary:hover{background:#0d5f61;text-decoration:none}

/* Hero */
.hero{background:linear-gradient(135deg,#0d5f61,#17868a);color:#fff;padding:100px 0;text-align:center}
.hero h1{font-size:2.6rem;max-width:850px;margin:0 auto .5em}
.hero p{font-size:1.15rem;max-width:750px;margin:0 auto 2em;opacity:.95}

/* Sections */
.section{padding:80px 0}
.section-gray{background:#f4f6f7}
.section-white{background:#fff}
.section-teal{background:#0d5f61;color:#fff}
.section h2{font-size:2rem;text-align:center;margin-bottom:1.5em;color:inherit}
.section-teal h2{color:#fff}

/* Check list */
.check-list{list-style:none;padding:0;max-width:600px;margin:0 auto;font-size:1.1rem}
.check-list li{padding:14px 0;border-bottom:1px solid #dde2e3;display:flex;align-items:center;gap:14px}
.check-list li:last-child{border-bottom:none}
.check{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:#17868a;color:#fff;font-weight:700;flex-shrink:0}

/* Promise grid */
.promise-grid,.serve-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:30px}
.promise-card{text-align:center;padding:30px 20px;border-radius:10px;background:#f4f6f7;transition:transform .2s,box-shadow .2s}
.promise-card:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(0,0,0,.08)}
.promise-icon{font-size:3rem;margin-bottom:.4em}
.promise-card h3{color:#0d5f61}

/* Serve */
.serve-card{background:rgba(255,255,255,.1);padding:30px;border-radius:10px;text-align:center;border:1px solid rgba(255,255,255,.2)}
.serve-card h3{color:#fff}

/* Contact */
.contact-wrap{max-width:650px}
.contact-sub{text-align:center;margin-bottom:2em;color:#555}
.contact-form{background:#fff;padding:30px;border-radius:10px;box-shadow:0 4px 16px rgba(0,0,0,.06)}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-weight:600;margin-bottom:6px;color:#0d5f61}
.form-row input,.form-row textarea{width:100%;padding:12px;border:1px solid #cfd6d7;border-radius:6px;font-size:1rem;font-family:inherit}
.form-row input:focus,.form-row textarea:focus{outline:none;border-color:#17868a;box-shadow:0 0 0 3px rgba(23,134,138,.15)}
.contact-form .btn{width:100%}

/* Footer */
.site-footer{background:#0a4547;color:#cfe4e5;padding:30px 0;text-align:center}
.footer-inner{display:flex;justify-content:center;gap:30px;flex-wrap:wrap;font-size:.95rem}
.site-footer a{color:#fff}

@media (max-width:640px){
  .hero{padding:70px 0}
  .hero h1{font-size:1.9rem}
  .section{padding:60px 0}
  .header-inner{justify-content:center;text-align:center}
  .main-nav{justify-content:center}
}