/* ============================================================
   TANYTE — Building Materials Export | Global Stylesheet
   Palette: navy / steel / accent(WhatsApp green)
   ============================================================ */
:root{
  --navy:#13314f;
  --navy-dark:#0d2238;
  --navy-light:#1e4a73;
  --steel:#5b7186;
  --steel-light:#94a3b8;
  --bg:#f6f8fb;
  --bg-white:#ffffff;
  --text:#16222e;
  --text-muted:#52606d;
  --border:#e3e9f0;
  --accent:#25d366;       /* WhatsApp */
  --accent-dark:#1ebe5b;
  --orange:#e8743b;       /* CTA */
  --orange-dark:#d65f28;
  --shadow:0 10px 30px rgba(19,49,79,.08);
  --shadow-sm:0 4px 14px rgba(19,49,79,.06);
  --radius:14px;
  --maxw:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.65;font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
h1,h2,h3,h4{line-height:1.2;color:var(--navy);font-weight:700}
h1{font-size:clamp(30px,4.5vw,52px)}
h2{font-size:clamp(26px,3.5vw,38px);margin-bottom:14px}
h3{font-size:21px;margin-bottom:10px}
p{color:var(--text-muted);margin-bottom:14px}
.lead{font-size:18px;color:var(--text-muted);max-width:720px}
section{padding:80px 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 48px}
.section-head .eyebrow{color:var(--orange);font-weight:600;letter-spacing:.12em;text-transform:uppercase;font-size:13px;display:inline-block;margin-bottom:10px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:50px;font-weight:600;font-size:15px;transition:.2s;cursor:pointer;border:0}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-light);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--navy);border:2px solid var(--border)}
.btn-ghost:hover{border-color:var(--navy)}
.btn-whatsapp{background:var(--accent);color:#fff}
.btn-whatsapp:hover{background:var(--accent-dark);transform:translateY(-2px)}

/* ---------- Header ---------- */
header.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--navy);letter-spacing:.5px}
.brand .logo{width:38px;height:38px;border-radius:9px;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none}
.nav-links>li{position:relative}
.nav-links>li>a{padding:10px 14px;font-weight:500;color:var(--text);border-radius:8px;font-size:15px;display:block}
.nav-links>li>a:hover{color:var(--navy);background:var(--bg)}
.has-dropdown>a::after{content:"▾";font-size:10px;margin-left:5px;color:var(--steel)}
.dropdown{position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);min-width:250px;padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.18s}
.has-dropdown:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{padding:10px 14px;border-radius:8px;font-size:14px;display:block;color:var(--text)}
.dropdown a:hover{background:var(--bg);color:var(--navy)}
.dropdown a small{display:block;color:var(--steel);font-size:12px;font-weight:400}
.nav-cta{margin-left:12px}
.hamburger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.hamburger span{width:24px;height:2px;background:var(--navy);border-radius:2px;transition:.2s}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-light) 100%);color:#fff;padding:90px 0 80px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-80px;width:480px;height:480px;background:radial-gradient(circle,rgba(232,116,59,.25),transparent 60%);border-radius:50%}
.hero .container{position:relative;z-index:1}
.hero h1{color:#fff;margin-bottom:18px}
.hero p.lead{color:rgba(255,255,255,.85)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-badges{display:flex;gap:28px;margin-top:46px;flex-wrap:wrap}
.hero-badges .badge{display:flex;flex-direction:column}
.hero-badges .badge b{font-size:26px;color:#fff}
.hero-badges .badge span{font-size:13px;color:rgba(255,255,255,.7)}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:-50px;position:relative;z-index:2}
.stat{background:#fff;border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);text-align:center}
.stat b{display:block;font-size:30px;color:var(--navy)}
.stat span{font-size:14px;color:var(--text-muted)}

/* ---------- Cards / Grid ---------- */
.grid{display:grid;gap:26px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--steel-light)}
.card .ico{width:48px;height:48px;border-radius:12px;background:var(--bg);color:var(--navy);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.card h3{font-size:19px}
.tag{display:inline-block;font-size:12px;font-weight:600;color:var(--orange);background:rgba(232,116,59,.1);padding:4px 10px;border-radius:30px;margin-bottom:12px}

/* product group cards with number */
.pg-card{position:relative;overflow:hidden}
.pg-card .num{position:absolute;right:18px;top:10px;font-size:54px;font-weight:800;color:var(--bg);line-height:1}
.pg-card ul{list-style:none;margin:14px 0 0}
.pg-card ul li{padding:6px 0 6px 22px;position:relative;font-size:14px;color:var(--text-muted)}
.pg-card ul li::before{content:"▸";position:absolute;left:0;color:var(--orange)}

/* ---------- Spec table ---------- */
.spec-table{width:100%;border-collapse:collapse;margin-top:8px;font-size:15px}
.spec-table th,.spec-table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--border)}
.spec-table th{background:var(--bg);color:var(--navy);font-weight:600;width:38%}
.spec-table tr:hover td{background:#fafcff}

/* ---------- Two column feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split .media{background:linear-gradient(135deg,var(--navy),var(--navy-light));border-radius:var(--radius);min-height:320px;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.9);font-size:15px;padding:30px;text-align:center}.split .media{padding:0;overflow:hidden}.split .media img{width:100%;height:100%;object-fit:cover;display:block}.media-caption{position:absolute;bottom:0;left:0;right:0;padding:10px 16px;background:linear-gradient(transparent,rgba(19,49,79,.75));color:#fff;font-size:13px}

.checklist{list-style:none}
.checklist li{padding:9px 0 9px 30px;position:relative;color:var(--text)}
.checklist li::before{content:"✓";position:absolute;left:0;top:9px;color:var(--accent);font-weight:800}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:#fff;border-radius:var(--radius);padding:48px;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.9)}
.cta-band .hero-actions{justify-content:center}

/* ---------- Breadcrumb ---------- */
.breadcrumb{padding:20px 0;font-size:14px;color:var(--steel)}
.breadcrumb a:hover{color:var(--navy)}
.breadcrumb span{margin:0 8px;color:var(--steel-light)}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{background:linear-gradient(135deg,var(--navy),var(--navy-light));color:#fff;padding:64px 0 56px}
.page-hero h1{color:#fff;font-size:clamp(28px,4vw,44px)}
.page-hero p{color:rgba(255,255,255,.85);max-width:680px;margin-top:12px}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
.info-box{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm)}
.info-box .row{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--border)}
.info-box .row:last-child{border:0}
.info-box .row .ico{color:var(--navy);font-size:20px;width:26px}
.info-box .row b{display:block;color:var(--navy);font-size:15px}
.info-box .row span{font-size:14px;color:var(--text-muted)}
form .field{margin-bottom:16px}
form label{display:block;font-size:14px;font-weight:600;color:var(--navy);margin-bottom:6px}
form input,form select,form textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;background:#fff;color:var(--text)}
form input:focus,form select:focus,form textarea:focus{outline:none;border-color:var(--navy-light);box-shadow:0 0 0 3px rgba(30,74,115,.12)}
form textarea{resize:vertical;min-height:120px}
.form-note{font-size:13px;color:var(--steel);margin-top:8px}
.form-success{display:none;background:rgba(37,211,102,.12);border:1px solid var(--accent);color:#137a3c;padding:14px 16px;border-radius:10px;margin-top:14px;font-size:14px}

/* ---------- Blog ---------- */
.blog-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.2s}
.blog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.blog-card .thumb{height:170px;background:linear-gradient(135deg,var(--navy-light),var(--steel));display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;letter-spacing:.05em}
.blog-card .body{padding:22px}
.blog-card .meta{font-size:12px;color:var(--steel);margin-bottom:8px;text-transform:uppercase;letter-spacing:.08em}
.blog-card h3{font-size:18px;margin-bottom:8px}
.blog-card .read{color:var(--orange);font-weight:600;font-size:14px;margin-top:10px;display:inline-block}

/* ---------- Footer ---------- */
footer.site-footer{background:var(--navy-dark);color:rgba(255,255,255,.75);padding:60px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
footer h4{color:#fff;font-size:16px;margin-bottom:16px}
footer ul{list-style:none}
footer ul li{margin-bottom:10px;font-size:14px}
footer ul li a:hover{color:#fff}
footer .brand{color:#fff;margin-bottom:14px}
footer .desc{font-size:14px;color:rgba(255,255,255,.65);max-width:280px}
.footer-contact li{display:flex;gap:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;font-size:13px;color:rgba(255,255,255,.55);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---------- Floating WhatsApp ---------- */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:999;background:var(--accent);color:#fff;width:58px;height:58px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:30px;box-shadow:0 8px 24px rgba(37,211,102,.45);transition:.2s}
.wa-float:hover{transform:scale(1.08);background:var(--accent-dark)}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--border);border-radius:12px;padding:0;margin-bottom:12px;background:#fff;overflow:hidden}
.faq-item summary{padding:18px 20px;cursor:pointer;font-weight:600;color:var(--navy);list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-item summary::after{content:"+";font-size:22px;color:var(--steel)}
.faq-item[open] summary::after{content:"−"}
.faq-item .ans{padding:0 20px 18px;color:var(--text-muted)}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .split,.contact-grid{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .nav-links{position:fixed;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);flex-direction:column;align-items:stretch;padding:12px 16px;gap:0;max-height:0;overflow:hidden;transition:.25s;box-shadow:var(--shadow)}
  .nav-links.open{max-height:520px;overflow:auto}
  .nav-links>li>a{padding:13px 8px}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 0 14px;display:none}
  .has-dropdown:hover .dropdown{display:block}
  .nav-cta{margin:10px 8px 0}
  .hamburger{display:flex}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  section{padding:56px 0}
  .stats{margin-top:-30px}
  .cta-band{padding:34px 22px}
  .footer-grid{grid-template-columns:1fr}
}