/* ============================================================
   GULF STATE ENVIRONMENTAL — Design System
   Direction: A+C "Trusted & Capable"
   Navy authority + Amber industrial energy
   ============================================================ */

:root{
  --navy:#0B2E4F;        /* primary / trust */
  --navy-700:#0A2640;
  --navy-900:#071C30;
  --amber:#F59E0B;       /* accent / CTA / energy */
  --amber-600:#D97706;
  --slate:#475569;       /* body text */
  --graphite:#1A1A1A;    /* deep contrast */
  --mist:#F1F5F9;        /* light section bg */
  --line:#E2E8F0;        /* borders */
  --white:#FFFFFF;
  --maxw:1180px;
  --radius:10px;
  --shadow:0 8px 30px rgba(11,46,79,.10);
  --shadow-lg:0 18px 50px rgba(11,46,79,.16);
  --font-head:"Barlow Condensed",system-ui,sans-serif;
  --font-body:"Inter",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--slate);
  line-height:1.65;
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--navy);text-decoration:none}

h1,h2,h3,h4{
  font-family:var(--font-head);
  color:var(--navy);
  line-height:1.05;
  letter-spacing:.5px;
  text-transform:uppercase;
  font-weight:700;
}
h1{font-size:clamp(2.4rem,5vw,4rem)}
h2{font-size:clamp(1.9rem,3.5vw,2.8rem)}
h3{font-size:1.45rem}
p{margin-bottom:1rem}
.lead{font-size:1.2rem;color:var(--slate)}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section--mist{background:var(--mist)}
.section--navy{background:var(--navy);color:#cfe0f0}
.section--navy h2,.section--navy h3{color:#fff}
.center{text-align:center}
.eyebrow{
  font-family:var(--font-head);
  text-transform:uppercase;
  letter-spacing:2px;
  color:var(--amber-600);
  font-weight:600;
  font-size:1rem;
  margin-bottom:.5rem;
  display:block;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;
  font-family:var(--font-head);
  text-transform:uppercase;
  letter-spacing:1px;
  font-weight:600;
  font-size:1.05rem;
  padding:14px 30px;
  border-radius:var(--radius);
  border:2px solid transparent;
  cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease;
}
.btn--amber{background:var(--amber);color:var(--graphite)}
.btn--amber:hover{background:var(--amber-600);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn--navy{background:var(--navy);color:#fff}
.btn--navy:hover{background:var(--navy-700);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn--ghost:hover{background:#fff;color:var(--navy)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.97);
  backdrop-filter:saturate(150%) blur(6px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;max-width:var(--maxw);margin:0 auto}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:46px;width:auto}
.brand .brand-text{font-family:var(--font-head);font-weight:700;color:var(--navy);font-size:1.3rem;line-height:1;text-transform:uppercase;letter-spacing:.5px}
.brand .brand-text span{display:block;color:var(--amber-600);font-size:.75rem;letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none}
.nav-links a{
  font-family:var(--font-head);text-transform:uppercase;letter-spacing:.5px;
  font-weight:600;font-size:1.05rem;color:var(--navy);
  padding:10px 14px;border-radius:8px;display:block;
}
.nav-links a:hover{background:var(--mist);color:var(--amber-600)}
.has-drop{position:relative}
.dropdown{
  position:absolute;top:100%;left:0;min-width:260px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);padding:8px;display:none;
}
.has-drop:hover .dropdown{display:block}
.dropdown a{font-size:.95rem;padding:9px 12px;text-transform:none;font-family:var(--font-body);font-weight:500}
.dropdown a:hover{background:var(--mist)}
.dropdown .drop-head{font-family:var(--font-head);text-transform:uppercase;color:var(--amber-600);font-size:.8rem;letter-spacing:1px;padding:8px 12px 4px}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-phone{font-family:var(--font-head);font-weight:700;color:var(--navy);font-size:1.15rem}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;font-size:1.8rem;color:var(--navy)}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:linear-gradient(135deg,var(--navy-900),var(--navy) 60%,var(--navy-700));
  color:#dfeaf5;padding:96px 0 88px;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-120px;bottom:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(245,158,11,.18),transparent 70%);
}
.hero .stripe{position:absolute;top:0;left:0;height:6px;width:100%;background:linear-gradient(90deg,var(--amber),transparent)}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center;position:relative;z-index:2}
.hero h1{color:#fff;margin-bottom:18px}
.hero h1 .amber{color:var(--amber)}
.hero p{font-size:1.25rem;color:#bcd0e6;margin-bottom:28px;max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:28px}
.hero-card h3{color:#fff;margin-bottom:14px}
.hero-card ul{list-style:none}
.hero-card li{padding:8px 0 8px 30px;position:relative;color:#dfeaf5}
.hero-card li::before{content:"✓";position:absolute;left:0;color:var(--amber);font-weight:700}

/* ---------- Trust bar ---------- */
.trustbar{background:var(--graphite);color:#fff;padding:0}
.trustbar .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.trust-item{padding:22px 18px;text-align:center;border-right:1px solid rgba(255,255,255,.1)}
.trust-item:last-child{border-right:0}
.trust-item .num{font-family:var(--font-head);font-size:2rem;color:var(--amber);line-height:1}
.trust-item .lbl{font-size:.85rem;letter-spacing:.5px;color:#cbd5e1;text-transform:uppercase}

/* ---------- Cards / service grid ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;transition:transform .18s ease,box-shadow .18s ease;
  border-top:4px solid var(--amber);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card h3{margin-bottom:10px}
.card p{font-size:.98rem}
.card .card-link{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.5px;color:var(--amber-600);font-weight:600;font-size:.95rem}
.card .icon{width:54px;height:54px;border-radius:10px;background:var(--mist);display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:16px}

/* ---------- Split feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.checklist{list-style:none}
.checklist li{padding:9px 0 9px 32px;position:relative}
.checklist li::before{content:"✓";position:absolute;left:0;top:8px;color:var(--amber-600);font-weight:700;font-size:1.1rem}

/* ---------- CTA band ---------- */
.cta-band{background:var(--amber);color:var(--graphite);text-align:center;padding:64px 0}
.cta-band h2{color:var(--graphite)}
.cta-band p{font-size:1.2rem;max-width:640px;margin:10px auto 24px;color:#4a3a12}

/* ---------- Forms ---------- */
.quote-form{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;box-shadow:var(--shadow)}
.quote-form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;color:var(--navy);margin-bottom:6px;font-size:.95rem}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:8px;
  font-family:var(--font-body);font-size:1rem;color:var(--graphite);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--amber);border-color:var(--amber)}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-900);color:#9fb6cc;padding:60px 0 28px;font-size:.95rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px}
.site-footer h4{color:#fff;margin-bottom:14px;font-size:1.1rem}
.site-footer a{color:#9fb6cc;display:block;padding:4px 0}
.site-footer a:hover{color:var(--amber)}
.footer-brand img{height:44px;margin-bottom:14px;background:#fff;border-radius:8px;padding:6px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.badge{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:6px;padding:6px 10px;font-size:.78rem;color:#cbd5e1}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem;color:#7e96ad}

/* ---------- Breadcrumb ---------- */
.breadcrumb{background:var(--mist);padding:14px 0;font-size:.9rem}
.breadcrumb a{color:var(--slate)}
.breadcrumb .sep{color:#94a3b8;margin:0 8px}

/* ---------- Page hero (interior) ---------- */
.page-hero{background:linear-gradient(135deg,var(--navy-900),var(--navy));color:#dfeaf5;padding:64px 0}
.page-hero h1{color:#fff}
.page-hero p{color:#bcd0e6;font-size:1.2rem;max-width:680px;margin-top:10px}
.page-hero .stripe{height:5px;background:linear-gradient(90deg,var(--amber),transparent)}

/* ---------- Utility ---------- */
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.notice{background:#fff8eb;border-left:4px solid var(--amber);padding:14px 18px;border-radius:8px;font-size:.95rem;color:#5b4a1f;margin:18px 0}

/* ---------- Responsive ---------- */
/* Tablet */
@media(max-width:960px){
  .hero-grid,.split{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .trustbar .wrap{grid-template-columns:1fr 1fr}
  .trust-item:nth-child(2){border-right:0}
  .section{padding:60px 0}
  /* inline 4-col process grids -> 2-col on tablet */
  .grid-3[style*="repeat(4"]{grid-template-columns:1fr 1fr !important}
}
/* Phone */
@media(max-width:680px){
  .nav{padding:10px 16px}
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;padding:10px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);max-height:80vh;overflow-y:auto;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 14px;font-size:1.15rem}
  .dropdown{position:static;box-shadow:none;border:0;display:block;padding-left:14px}
  .has-drop:hover .dropdown{display:block}
  .dropdown a{padding:11px 12px}
  .menu-toggle{display:block;padding:6px 10px}
  .nav-cta .btn{padding:10px 16px;font-size:.95rem}
  .nav-phone{display:none}
  .wrap{padding:0 16px}
  .section{padding:48px 0}
  /* force ALL multi-col grids to single column, incl. inline 4-col */
  .grid-3,.grid-3[style*="repeat(4"]{grid-template-columns:1fr !important}
  .quote-form .row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .trustbar .wrap{grid-template-columns:1fr 1fr}
  .trust-item{padding:18px 10px}
  .trust-item .num{font-size:1.6rem}
  .hero{padding:64px 0 56px}
  .page-hero{padding:48px 0}
  .cta-band{padding:48px 0}
  /* full-width tap-friendly buttons in key spots */
  .hero-cta{flex-direction:column}
  .hero-cta .btn,.cta-band .btn{width:100%;text-align:center}
  .btn{padding:15px 24px}            /* >=48px tap target */
  .field input,.field select,.field textarea{font-size:16px} /* prevents iOS zoom-on-focus */
  h1{font-size:clamp(2rem,8vw,2.6rem)}
  h2{font-size:clamp(1.6rem,6vw,2rem)}
  .lead{font-size:1.08rem}
  .card{padding:24px}
  .breadcrumb{font-size:.82rem}
  /* multi-column checklists collapse to one column on phones */
  .checklist[style*="columns"]{columns:1 !important}
}