*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Poppins',sans-serif;color:var(--ink);background:var(--surface)}

:root{
  /* SDH-inspired brand palette (from provided logo) */
  --brand:#75bf53; /* primary */
  --brand-2:#75bf53;
  --brand-dark:#75bf53; /* secondary */
  --brand-900:#1b2c36;
  --brand-soft:rgba(117,191,83,.16);

  --ink:var(--brand-900);
  --surface:#f6f8fb;

  --footer-bg:#304857;
  --footer-bg-2:#304857;
  --footer-text:rgba(255,255,255,.78);
  --footer-muted:rgba(255,255,255,.60);
  --footer-line:rgba(255,255,255,.12);
  --footer-pill:rgba(255,255,255,.08);

  --hero-lead-extra:56px;
}

/* ===== HEADER ===== */
.topbar{background:var(--brand-dark);color:#fff;font-size:12px;padding:10px 40px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:18px}
.topbar-item{display:flex;align-items:center;gap:8px;white-space:nowrap;opacity:.95}
.topbar-ico{width:14px;height:14px;opacity:.9;flex:0 0 auto}
.topbar a{color:inherit;text-decoration:none}
.topbar a:hover{opacity:1;text-decoration:underline}

.topbar-lang{display:flex;align-items:center;gap:8px;white-space:nowrap}
.topbar-lang select{appearance:none;background:transparent;border:none;color:#fff;font:600 12px/1.2 'Poppins',sans-serif;padding-right:18px;cursor:pointer}
.topbar-lang select:focus-visible{outline:3px solid rgba(255,255,255,.45);outline-offset:3px}
.topbar-lang .caret{width:10px;height:10px;opacity:.9}

.topbar-social{display:flex;align-items:center;gap:10px;margin-left:6px}
.topbar-social a{width:26px;height:26px;border-radius:999px;display:grid;place-items:center;background:rgba(255,255,255,.12);text-decoration:none}
.topbar-social a:hover{background:rgba(255,255,255,.18)}
.topbar-social svg{width:14px;height:14px;display:block}

header{background:#fff;padding:12px 40px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo img{height:52px;width:auto;display:block}
nav ul{list-style:none;display:flex;gap:26px;font-weight:500}
nav#primary-nav a{text-decoration:none;color:var(--ink);font-size:14px}
nav#primary-nav li.has-submenu > a{display:inline-flex;align-items:center;gap:6px}
nav#primary-nav li.has-submenu > a::after{content:'▾';font-size:12px;opacity:.7;transform:translateY(-1px)}

.header-actions{display:flex;align-items:center;gap:16px}
.contact{display:flex;align-items:center;gap:10px}
.contact svg{width:18px;height:18px;color:var(--brand)}
.contact strong{font-size:14px;white-space:nowrap}
.btn{background:var(--brand);color:#fff;border:none;padding:12px 22px;font-weight:700}
.menu-toggle{width:44px;height:44px;border:none;background:transparent;display:grid;place-items:center;cursor:pointer}
.menu-toggle .bars{width:22px;height:16px;position:relative}
.menu-toggle .bars::before,.menu-toggle .bars::after,.menu-toggle .bars span{content:'';position:absolute;left:0;right:0;height:2px;background:var(--ink);border-radius:2px}
.menu-toggle .bars::before{top:0}
.menu-toggle .bars span{top:7px}
.menu-toggle .bars::after{bottom:0}
.menu-toggle:focus-visible{outline:3px solid rgba(117,191,83,.55);outline-offset:3px}

@media(max-width:980px){
  .topbar{padding:10px 18px}
  header{padding:14px 18px}
  nav#primary-nav{display:block}
}

/* ===== MOBILE NAV (uses existing <nav>) ===== */
.nav-backdrop{position:fixed;inset:0;background:rgba(2,8,23,.55);opacity:0;pointer-events:none;transition:.18s ease;z-index:60}
body.nav-open .nav-backdrop{opacity:1;pointer-events:auto}
@media(max-width:980px){
  header{position:sticky;top:0;z-index:70;box-shadow:0 12px 30px rgba(2,8,23,.08)}
  nav#primary-nav{position:fixed;top:0;right:0;bottom:0;width:min(340px, 88vw);background:#fff;z-index:70;
    transform:translateX(105%);transition:.2s ease;box-shadow:-20px 0 60px rgba(2,8,23,.18);
    padding:88px 18px 18px
  }
  body.nav-open nav#primary-nav{transform:translateX(0)}
  nav#primary-nav ul{flex-direction:column;gap:14px}
  nav#primary-nav a{font-size:16px}
}

/* ===== CONTENT HELPERS ===== */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:12px;top:12px;z-index:1000;background:#fff;color:var(--ink);padding:10px 12px;text-decoration:none;border:2px solid rgba(117,191,83,.55);transform:translateY(-140%);transition:.18s ease}
.skip-link:focus{transform:translateY(0)}

.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;border:1px solid #e5e7eb;background:#fff;color:var(--ink);text-decoration:none;font-weight:600;transition:.18s ease;white-space:nowrap}
.btn-outline:hover{border-color:#cbd5e1;transform:translateY(-1px)}
.btn-outline:focus-visible{outline:3px solid rgba(117,191,83,.55);outline-offset:3px}

.btn-solid{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;background:var(--brand);color:#fff;text-decoration:none;font-weight:700;border:1px solid var(--brand);transition:.18s ease;white-space:nowrap}
.btn-solid:hover{transform:translateY(-1px);filter:saturate(1.05)}
.btn-solid:focus-visible{outline:3px solid rgba(117,191,83,.55);outline-offset:3px}

/* ===== INNER PAGE HERO ===== */
.inner-hero{position:relative;overflow:hidden;isolation:isolate}
.inner-hero::before{content:'';position:absolute;inset:0;background:var(--hero-bg-image, url('https://images.unsplash.com/photo-1494526585095-c41746248156?q=80&w=2400&auto=format&fit=crop')) center/cover no-repeat;transform:scale(1.03);z-index:-2}
.inner-hero::after{content:'';position:absolute;inset:0;background:rgba(12,46,28,.70);z-index:-1}
.inner-hero-inner{max-width:1200px;margin:0 auto;padding:62px 40px 54px;color:#fff;text-align:center;display:flex;flex-direction:column;align-items:center}

.breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;font-size:13px;color:rgba(255,255,255,.82)}
.breadcrumbs a{color:inherit;text-decoration:none}
.breadcrumbs a:hover{text-decoration:underline}
.crumb-sep{opacity:.75}

.inner-hero h1{margin-top:14px;font-size:52px;line-height:1.08;font-weight:800;letter-spacing:-.02em;max-width:100%;display:inline-block}
.inner-hero p{margin-top:12px;max-width:100%;color:rgba(255,255,255,.86);line-height:1.7}

@media(max-width:900px){
  .inner-hero h1{font-size:40px}
}
@media(max-width:560px){
  .inner-hero-inner{padding:44px 18px 40px}
  .inner-hero h1{font-size:32px}
  :root{--hero-lead-extra:18px}
}

/* ===== SERVICE PHOTO STRIP ===== */
.service-photos{background:#fff;box-shadow:0 18px 40px rgba(2,8,23,.08);padding:18px 18px 16px}
.service-photos-title{font-size:14px;font-weight:800;color:var(--ink);margin-bottom:12px}
.service-photos-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:10px}
.service-photos-grid img{width:100%;height:160px;object-fit:cover;display:block;background:#eef2f7;border-radius:12px}
@media(max-width:980px){
  .service-photos-grid{grid-template-columns:repeat(2, 1fr)}
  .service-photos-grid img{height:190px}
}

/* ===== ARTICLE LAYOUT ===== */
.page-wrap{max-width:1200px;margin:0 auto;padding:64px 40px}
.page-grid{display:grid;grid-template-columns:1.65fr .9fr;gap:34px;align-items:start}

.feature-card{background:#fff;box-shadow:0 18px 40px rgba(2,8,23,.08)}
.feature-media{height:360px;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;display:block}
.feature-body{padding:28px 30px 30px}

.article h2{font-size:28px;line-height:1.2;color:var(--ink);margin:22px 0 10px}
.article h3{font-size:18px;line-height:1.25;color:var(--ink);margin:18px 0 8px}
.article p{color:#6b7280;line-height:1.8;margin:10px 0}
.article ul{padding-left:18px;color:#6b7280;line-height:1.8;margin:10px 0}
.article li{margin:6px 0}

.info-panel{position:sticky;top:88px;background:#fff;box-shadow:0 18px 40px rgba(2,8,23,.08);padding:22px 22px 18px}
.info-title{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:12px}
.info-list{display:flex;flex-direction:column;gap:12px;margin-bottom:18px}
.info-item{display:flex;gap:10px;align-items:flex-start;color:#6b7280;font-size:13px;line-height:1.45}
.info-ico{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:rgba(117,191,83,.14);color:var(--brand);flex:0 0 auto}
.info-ico svg{width:16px;height:16px;display:block}

.callout{margin-top:16px;padding:16px 16px;background:var(--brand-soft);border-left:4px solid var(--brand)}
.callout strong{display:block;color:var(--ink);font-size:14px;margin-bottom:6px}
.callout span{display:block;color:#51615a;font-size:13px;line-height:1.6}

.side-nav{margin-top:18px;padding-top:16px;border-top:1px solid #e5e7eb}
.side-nav-title{font-size:14px;font-weight:800;color:var(--ink);margin-bottom:12px}
.side-nav ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.side-nav a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 10px;border:1px solid #e5e7eb;background:#fff;color:var(--ink);text-decoration:none;font-weight:600;font-size:13px;line-height:1.25;transition:.18s ease}
.side-nav a:hover{border-color:#cbd5e1;transform:translateY(-1px)}
.side-nav a:focus-visible{outline:3px solid rgba(117,191,83,.45);outline-offset:3px}
.side-nav .arr{opacity:.7;flex:0 0 auto}
.side-nav .all{margin-top:6px}
.side-nav .all a{justify-content:center;font-weight:700;border-color:rgba(117,191,83,.30);background:rgba(117,191,83,.08)}
.side-nav .all a:hover{border-color:rgba(117,191,83,.55)}

.benefits{margin-top:34px;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.benefit-card{background:#fff;box-shadow:0 18px 40px rgba(2,8,23,.08);padding:22px 22px 18px}
.benefit-card h3{margin:0 0 10px;font-size:16px;font-weight:800}
.benefit-card p{margin:0;color:#6b7280;line-height:1.7;font-size:13px}

@media(max-width:980px){
  .page-grid{grid-template-columns:1fr}
  .info-panel{position:relative;top:auto}
}
@media(max-width:560px){
  .page-wrap{padding:46px 18px}
  .feature-media{height:240px}
  .feature-body{padding:22px 18px 22px}
  .benefits{grid-template-columns:1fr}
}

/* ===== FOOTER ===== */
.site-footer{position:relative;background:radial-gradient(1100px 620px at 86% 25%, rgba(255,255,255,.08), transparent 60%), var(--footer-bg);color:#fff;overflow:hidden}
.site-footer::before{content:'';position:absolute;inset:0;background:
  radial-gradient(480px 380px at 78% 55%, rgba(255,255,255,.06), transparent 62%),
  linear-gradient(180deg, rgba(0,0,0,.0), rgba(0,0,0,.06));
  pointer-events:none
}
.footer-inner{position:relative;max-width:1200px;margin:auto;padding:46px 40px 26px}
.footer-top{display:flex;align-items:center;justify-content:space-between;gap:20px}
.footer-brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.12em}
.footer-brand .mark{width:34px;height:34px;display:grid;place-items:center;border-radius:8px;background:rgba(255,255,255,.10)}
.footer-brand span{font-size:22px}
.footer-brand img{height:46px;width:auto;display:block;border-radius:999px;background:#fff;padding:2px}
.footer-social{display:flex;gap:12px}
.footer-social a{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--footer-pill);color:#fff;text-decoration:none;transition:.2s ease}
.footer-social a:hover{transform:translateY(-1px);background:rgba(255,255,255,.14)}
.footer-divider{height:1px;background:var(--footer-line);margin:26px 0 36px}
.footer-grid{display:grid;grid-template-columns:1.05fr .9fr .95fr 1.6fr;gap:46px;align-items:start}
.footer-title{font-size:18px;font-weight:700;margin-bottom:18px}
.footer-contact{display:flex;flex-direction:column;gap:14px;color:var(--footer-text)}
.footer-contact .item{display:flex;gap:12px;align-items:flex-start}
.footer-contact .ico{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:rgba(117,191,83,.18);color:var(--brand);flex:0 0 auto}
.footer-contact .value{line-height:1.35}
.footer-contact .address{margin-top:12px;color:var(--footer-muted);line-height:1.7}

.footer-links{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-links a{color:var(--footer-text);text-decoration:none}
.footer-links a:hover{color:#fff;text-decoration:underline}

.footer-cta h3{font-size:28px;line-height:1.2;margin-bottom:14px}
.footer-cta p{color:var(--footer-muted);margin-bottom:16px}
.subscribe{display:flex;align-items:stretch;border-radius:4px;overflow:hidden;max-width:640px}
.subscribe input{flex:1;border:none;outline:none;padding:18px 18px;font-size:14px}
.subscribe button{border:none;background:var(--brand);color:#fff;font-weight:700;padding:0 34px}

.footer-bottom{padding:18px 40px 30px;text-align:center;color:rgba(255,255,255,.72);font-size:13px}
.footer-bottom a{color:#fff;text-decoration:none}
.footer-bottom a:hover{text-decoration:underline}

.back-to-top{position:fixed;right:20px;bottom:16px;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:var(--brand);color:#fff;text-decoration:none;box-shadow:0 10px 30px rgba(0,0,0,.35);opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s ease;z-index:50}
.back-to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}

@media(max-width:980px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-cta{grid-column:1/-1}
  .footer-cta h3{font-size:24px}
  .subscribe{max-width:none}
}
@media(max-width:560px){
  .footer-inner{padding:38px 18px 18px}
  .footer-bottom{padding:16px 18px 28px}
  .footer-top{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr}
}