:root{
  --primary:#0e6b66;
  --primary-dark:#084845;
  --accent:#f4a100;
  --accent-dark:#d48b00;
  --text:#1f2b38;
  --muted:#5d6a79;
  --light:#ffffff;
  --bg:#f5f8fa;
  --section:#eef4f3;
  --border:#d7e2e0;
  --shadow:0 10px 30px rgba(0,0,0,.08);
  --radius:14px;
  --container:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Open Sans',sans-serif;color:var(--text);background:#fff;line-height:1.7}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{width:min(var(--container),calc(100% - 30px));margin:auto}
.section{padding:80px 0}
.section-sm{padding:60px 0}
.bg-light{background:var(--bg)}
.bg-section{background:var(--section)}
.text-center{text-align:center}
.grid{display:grid;gap:24px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 28px;border-radius:8px;font-weight:700;text-transform:uppercase;font-size:13px;letter-spacing:.7px;transition:.25s ease}
.btn-primary{background:var(--accent);color:#fff;border:2px solid var(--accent)}
.btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark)}
.btn-outline{background:transparent;color:#fff;border:2px solid #fff}
.btn-outline:hover{background:#fff;color:var(--primary)}
.btn-dark{background:var(--primary);color:#fff;border:2px solid var(--primary)}
.btn-dark:hover{background:var(--primary-dark);border-color:var(--primary-dark)}
.tag{display:inline-block;padding:8px 14px;border-radius:999px;background:rgba(244,161,0,.12);color:var(--accent-dark);font-weight:700;font-size:12px;letter-spacing:.6px;text-transform:uppercase}
h1,h2,h3,h4{font-family:'Oswald',sans-serif;line-height:1.2;margin:0 0 14px;text-transform:uppercase}
h1{font-size:56px}
h2{font-size:34px}
h3{font-size:22px}
p{margin:0 0 14px;color:var(--muted)}
.lead{font-size:17px;color:#e8f4f2}
.section-head{margin-bottom:42px}
.section-head p{max-width:720px}
.section-head.left{display:flex;flex-direction:column;align-items:flex-start}
.section-head .line{width:70px;height:4px;background:var(--accent);margin:0 0 16px;border-radius:5px}
.line-center{margin-inline:auto!important}
.centered-copy{margin:0 auto;max-width:740px}
.white-text,.white-text h2,.white-text p{color:#fff}
.short-gap{margin-bottom:10px}

/* top bar */
.topbar{background:var(--primary-dark);color:#d7ecea;font-size:13px}
.topbar-wrap{display:flex;justify-content:space-between;gap:15px;align-items:center;padding:10px 0}
.topbar a{color:#d7ecea}
.top-icons{display:flex;gap:8px;flex-wrap:wrap}
.top-icons a{width:30px;height:30px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08)}

/* header */
header{position:sticky;top:0;z-index:999;background:#fff;box-shadow:0 3px 14px rgba(0,0,0,.05)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0}
.logo{font-family:'Oswald',sans-serif;font-size:30px;font-weight:700;color:var(--primary);line-height:1}
.logo span{color:var(--accent)}
nav ul{margin:0;padding:0;list-style:none;display:flex;gap:26px;align-items:center}
nav a{font-size:13px;font-weight:700;text-transform:uppercase;color:var(--text)}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-call{font-weight:800;color:var(--primary);font-size:18px;white-space:nowrap}
.menu-toggle{display:none;background:none;border:none;font-size:28px;color:var(--primary)}

/* hero */
.hero{position:relative;background:linear-gradient(rgba(8,72,69,.78),rgba(8,72,69,.82)),url('assets/images/banner/slider1.jpg') center/cover no-repeat;color:#fff;overflow:hidden}
.hero .container{padding:90px 0}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center}
.hero h1{max-width:700px;margin-top:10px}
.hero p{max-width:620px;color:#e7f2f1}
.hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 18px;margin:26px 0 32px;padding:0;list-style:none}
.hero-points li{font-weight:600;color:#fff}
.hero-points i{color:var(--accent);margin-right:8px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.quote-box{background:#fff;border-radius:18px;padding:28px;box-shadow:var(--shadow);color:var(--text)}
.quote-box h3{color:var(--primary)}
.quote-box p{margin-bottom:18px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .full{grid-column:1/-1}
.quote-box input,.quote-box select,.quote-box textarea{width:100%;padding:14px 15px;border:1px solid var(--border);border-radius:10px;font-size:14px;font-family:inherit;outline:none}
.quote-box input:focus,.quote-box select:focus,.quote-box textarea:focus{border-color:var(--primary)}
.quote-box textarea{min-height:110px;resize:vertical}
.quote-note{font-size:12px;color:#6a7380;margin-top:10px}

/* stats */
.stats{margin-top:-38px;position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{background:#fff;border-radius:16px;padding:24px;box-shadow:var(--shadow);text-align:center;border:1px solid #edf2f1}
.stat h3{font-size:34px;color:var(--primary);margin-bottom:6px}
.stat p{margin:0;color:var(--muted);font-weight:600}

/* services */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);border:1px solid #edf2f1}
.service-card img{height:220px;width:100%;object-fit:cover}
.service-card .content{padding:24px}
.service-card h3{color:var(--primary)}
.service-card p{min-height:88px}

/* about */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.about-img img{border-radius:18px;box-shadow:var(--shadow)}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px;margin-top:24px;padding:0;list-style:none}
.check-list li{font-weight:700;color:var(--text)}
.check-list i{color:var(--accent);margin-right:8px}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.why-card{background:#fff;padding:28px 22px;border-radius:16px;box-shadow:var(--shadow);border-top:4px solid var(--accent)}
.why-card i{font-size:34px;color:var(--primary);margin-bottom:14px}
.why-card p{margin-bottom:0}

/* process */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.process-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px;position:relative}
.process-no{width:42px;height:42px;border-radius:50%;background:var(--accent);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:14px}

/* testimonial */
.testimonial-section{background:linear-gradient(rgba(8,72,69,.93),rgba(8,72,69,.93)),url('assets/images/slider-home-construction-02.jpg') center/cover no-repeat}
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testimonial-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);padding:26px;border-radius:16px;color:#fff}
.testimonial-card p{color:#d9ecea}
.stars{color:#ffcb4d;margin-bottom:12px}
.client{font-weight:800;text-transform:uppercase;font-size:14px}

/* faq */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;padding:22px}
.faq-item h3{font-size:20px;color:var(--primary)}
.faq-item p{margin-bottom:0}

/* contact */
.contact-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:30px}
.contact-card,.contact-form-box{background:#fff;border-radius:18px;box-shadow:var(--shadow);padding:28px}
.info-list{list-style:none;padding:0;margin:22px 0 0}
.info-list li{display:flex;gap:14px;align-items:flex-start;margin-bottom:18px}
.info-list i{width:42px;height:42px;background:var(--section);color:var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;flex:0 0 42px}
.contact-form-box form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form-box .full{grid-column:1/-1}
.contact-form-box input,.contact-form-box textarea,.contact-form-box select{width:100%;padding:14px 15px;border:1px solid var(--border);border-radius:10px;font-size:14px;font-family:inherit;outline:none}
.contact-form-box textarea{min-height:140px;resize:vertical}
.contact-form-box input:focus,.contact-form-box textarea:focus,.contact-form-box select:focus{border-color:var(--primary)}

/* footer */
footer{background:#13212c;color:#e7eef4}
.footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:30px;padding:60px 0 28px}
footer h3{font-size:22px;margin-bottom:18px;color:#fff}
footer p,footer li,footer a{color:#b7c3cf}
footer ul{list-style:none;padding:0;margin:0}
footer li{margin-bottom:10px}
.footer-bottom{padding:18px 0;border-top:1px solid rgba(255,255,255,.08);text-align:center;font-size:14px;color:#a7b4bf}

/* sticky buttons */
.sticky-cta{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:999}
.sticky-cta a{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:var(--shadow);font-size:22px}
.sticky-call{background:var(--accent)}
.sticky-whatsapp{background:#25d366}

@media (max-width:1100px){
  .hero-grid,.about-grid,.contact-wrap{grid-template-columns:1fr}
  .services-grid,.why-grid,.process-grid,.testimonial-grid,.footer-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  h1{font-size:40px}
  h2{font-size:28px}
  nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-top:1px solid #edf0f3;box-shadow:0 10px 25px rgba(0,0,0,.08)}
  nav.active{display:block}
  nav ul{flex-direction:column;align-items:flex-start;padding:18px}
  .menu-toggle{display:block}
  .nav-call{display:none}
  .services-grid,.why-grid,.process-grid,.testimonial-grid,.faq-grid,.footer-grid,.stats-grid{grid-template-columns:1fr}
  .check-list,.hero-points,.form-grid,.contact-form-box form{grid-template-columns:1fr}
  .topbar-wrap{flex-direction:column;align-items:flex-start}
  .hero .container{padding:70px 0}
  .stats{margin-top:0;padding-top:24px}
  .section{padding:65px 0}
}