/* SIEGRIS corporate site - brand: deep royal blue + vermilion seal red */
:root {
  --navy: #16265C;
  --navy-dark: #0E1A42;
  --navy-light: #24408F;
  --red: #C0392B;
  --red-dark: #992D22;
  --bg: #FFFFFF;
  --bg-soft: #F5F7FA;
  --text: #1E2430;
  --text-muted: #5A6474;
  --line: #E3E7EE;
  --radius: 10px;
  --max: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
}

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-mark {
  width: 30px; height: 30px; background: var(--red); border-radius: 4px;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 15px; letter-spacing: 0;
}
.logo-word {
  font-size: 21px; font-weight: 700; letter-spacing: 3px; color: var(--navy);
}
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a {
  text-decoration: none; color: var(--text); font-size: 15px; font-weight: 500;
}
.main-nav a:hover { color: var(--red); }
.nav-cta {
  background: var(--red); color: #fff !important; padding: 9px 20px; border-radius: 6px;
}
.nav-cta:hover { background: var(--red-dark); color: #fff !important; }
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 55%, var(--navy-light) 100%);
  color: #fff; padding: 96px 0 100px;
}
.hero-kicker {
  display: inline-block; font-size: 13px; letter-spacing: 2.5px; text-transform: uppercase;
  color: #F0B7AF; margin-bottom: 18px; font-weight: 600;
}
.hero h1 { font-size: 44px; line-height: 1.2; font-weight: 700; max-width: 720px; }
.hero h1 .accent { color: #F26A57; }
.hero p {
  margin-top: 20px; font-size: 18px; color: #C9D2E8; max-width: 640px;
}
.hero-actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; text-decoration: none; font-weight: 600; font-size: 15px;
  padding: 13px 28px; border-radius: 6px; transition: background .15s ease;
}
.btn-primary { background: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-dark); }
.btn-ghost { border: 1px solid rgba(255,255,255,0.45); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-light); }

/* ---------- Sections ---------- */
.section { padding: 76px 0; }
.section.alt { background: var(--bg-soft); }
.section-head { max-width: 680px; margin-bottom: 44px; }
.section-kicker {
  font-size: 12.5px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--red); font-weight: 700; margin-bottom: 10px;
}
.section-head h2 { font-size: 30px; font-weight: 700; color: var(--navy); line-height: 1.25; }
.section-head p { margin-top: 12px; color: var(--text-muted); font-size: 16.5px; }

/* Cards grid */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; transition: box-shadow .15s ease, transform .15s ease;
}
.card:hover { box-shadow: 0 8px 24px rgba(22,38,92,0.10); transform: translateY(-2px); }
.card-icon {
  width: 46px; height: 46px; border-radius: 8px; background: #EAF0FB; color: var(--navy);
  display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 18px;
}
.card h3 { font-size: 18px; color: var(--navy); margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--text-muted); }
.card .card-link {
  display: inline-block; margin-top: 16px; color: var(--red); font-weight: 600;
  font-size: 14px; text-decoration: none;
}
.card .card-link:hover { text-decoration: underline; }

/* Product detail rows */
.product-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
  padding: 40px 0; border-bottom: 1px solid var(--line);
}
.product-row:last-child { border-bottom: none; }
.product-row.reverse .product-media { order: 2; }
.product-media {
  background: linear-gradient(135deg, #E9EEF8, #F7F9FC);
  border-radius: var(--radius); min-height: 220px;
  display: flex; align-items: center; justify-content: center;
  color: var(--navy-light); font-size: 14px; letter-spacing: 1px;
  border: 1px dashed #C4CFE4;
}
.product-info h3 { font-size: 22px; color: var(--navy); margin-bottom: 12px; }
.product-info p { color: var(--text-muted); font-size: 15.5px; }
.product-info ul { margin: 16px 0 0 18px; color: var(--text); font-size: 15px; }
.product-info ul li { margin-bottom: 6px; }

/* Feature strip */
.feature-strip { background: var(--navy); color: #fff; padding: 56px 0; }
.feature-strip .grid-4 .card { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.14); }
.feature-strip .card h3 { color: #fff; }
.feature-strip .card p { color: #B9C4DE; }
.feature-strip .card-icon { background: rgba(255,255,255,0.12); color: #F0B7AF; }

/* CTA band */
.cta-band { background: var(--bg-soft); padding: 72px 0; text-align: center; }
.cta-band h2 { font-size: 28px; color: var(--navy); font-weight: 700; }
.cta-band p { color: var(--text-muted); margin: 12px 0 28px; }

/* ---------- Page hero (sub pages) ---------- */
.page-hero { background: var(--navy); color: #fff; padding: 64px 0; }
.page-hero h1 { font-size: 34px; font-weight: 700; }
.page-hero p { margin-top: 10px; color: #C9D2E8; font-size: 16.5px; max-width: 640px; }

/* ---------- About ---------- */
.about-cols { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; }
.about-cols h2 { font-size: 24px; color: var(--navy); margin-bottom: 14px; }
.about-cols p { color: var(--text-muted); margin-bottom: 14px; font-size: 15.5px; }
.fact-list { list-style: none; }
.fact-list li {
  padding: 14px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px;
  font-size: 15px;
}
.fact-list li .k { color: var(--text-muted); }
.fact-list li .v { color: var(--navy); font-weight: 600; text-align: right; }

/* ---------- Contact / form ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; align-items: start; }
.contact-info h2 { font-size: 22px; color: var(--navy); margin-bottom: 16px; }
.contact-info .fact-list li { border-bottom: 1px solid var(--line); }
.form-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-size: 13.5px; font-weight: 600; color: var(--navy); margin-bottom: 6px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 13px; border: 1px solid #C9D2E0; border-radius: 6px;
  font-size: 15px; font-family: inherit; color: var(--text); background: #fff;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--navy-light); box-shadow: 0 0 0 3px rgba(36,64,143,0.12);
}
.form-note { font-size: 12.5px; color: var(--text-muted); margin-top: 12px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-dark); color: #AEB9D6; padding: 56px 0 32px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-grid h4 { color: #fff; font-size: 15px; margin-bottom: 14px; letter-spacing: 1px; }
.footer-grid a { color: #AEB9D6; text-decoration: none; display: block; margin-bottom: 8px; font-size: 14px; }
.footer-grid a:hover { color: #fff; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-brand .logo-word { color: #fff; font-size: 18px; }
.footer-grid p { font-size: 14px; line-height: 1.8; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12); padding-top: 22px;
  font-size: 13px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .product-row, .about-cols, .contact-grid { grid-template-columns: 1fr; }
  .product-row.reverse .product-media { order: 0; }
  .hero h1 { font-size: 32px; }
  .footer-grid { grid-template-columns: 1fr; }
  .main-nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 18px 24px;
    border-bottom: 1px solid var(--line); gap: 16px;
  }
  .main-nav.open { display: flex; }
  .nav-toggle {
    display: block; background: none; border: none; cursor: pointer; padding: 8px;
  }
  .nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy); margin: 5px 0; }
}

/* ---------- Extended components ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 8px 18px; font-size: 14px; color: var(--navy); font-weight: 500;
}
.stat-num { font-size: 42px; font-weight: 700; color: var(--navy); line-height: 1; }
.stat-label { font-size: 14px; color: var(--text-muted); margin-top: 6px; }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; padding: 40px 0; }
.sourcing-col { border-top: 3px solid var(--red); padding-top: 18px; }
.sourcing-col h3 { color: var(--navy); font-size: 17px; margin-bottom: 8px; }
.sourcing-col p { font-size: 14.5px; color: var(--text-muted); }
.series-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.series-card {
  border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; background: #fff;
}
.series-card .code { font-weight: 700; color: var(--navy); font-size: 15px; }
.series-card .desc { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.spec-table td { padding: 11px 14px; border-bottom: 1px solid var(--line); }
.spec-table td:first-child { color: var(--text-muted); width: 42%; }
.spec-table td:last-child { color: var(--navy); font-weight: 500; }
.cert-badges { display: flex; flex-wrap: wrap; gap: 10px; }
.cert-badges span {
  background: var(--navy); color: #fff; font-size: 12.5px; font-weight: 600;
  padding: 6px 14px; border-radius: 4px; letter-spacing: 0.5px;
}
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
@media (max-width: 860px) {
  .stat-row, .series-grid, .two-col { grid-template-columns: repeat(2, 1fr); }
  .stat-row { grid-template-columns: 1fr 1fr; }
}

/* ---------- Brand logo ---------- */
.logo-img {
  height: 38px;
  width: auto;
  display: block;
}
.footer-brand { margin-bottom: 16px; }
.footer-logo {
  height: 34px;
  background: #fff;
  padding: 8px 12px;
  border-radius: 6px;
}

/* ---------- Media gallery (SIMER photos) ---------- */
.media-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.media-card {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.media-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  display: block;
}
.media-card.span2 { grid-column: span 2; }
.media-card figcaption {
  font-size: 13px;
  color: var(--text-muted);
  padding: 10px 14px;
}
.strip-img {
  width: 100%;
  max-width: 460px;
  border-radius: 10px;
  display: block;
}
@media (max-width: 860px) {
  .media-grid { grid-template-columns: repeat(2, 1fr); }
  .media-card.span2 { grid-column: span 2; }
}
.feature-strip .cert-badges span {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.28);
}