/* ============================================
   KGL Machining & Electronics - kglmfg.com
   Static B2B Manufacturing Website
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: #1a202c;
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: #1a365d; text-decoration: none; transition: color 0.2s; }
a:hover { color: #dd6b20; }
ul, ol { list-style: none; }

/* --- Layout --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.grid { display: grid; gap: 32px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
}

/* --- Header / Nav --- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.98);
  border-bottom: 1px solid #e2e8f0;
  backdrop-filter: blur(8px);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { font-size: 1.25rem; font-weight: 800; color: #1a365d; letter-spacing: -0.02em; }
.logo span { color: #dd6b20; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 0.9375rem; font-weight: 500; color: #2d3748; }
.nav-links a:hover { color: #dd6b20; }
.nav-cta {
  background: #dd6b20; color: #fff !important;
  padding: 10px 24px; border-radius: 6px; font-weight: 600;
}
.nav-cta:hover { background: #c05621; color: #fff !important; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: #1a365d; }
@media (max-width: 900px) {
  .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; background: #fff; padding: 16px 24px; border-bottom: 1px solid #e2e8f0; gap: 16px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
}

/* --- Hero --- */
.hero {
  background: linear-gradient(135deg, #1a365d 0%, #2a4a7f 100%);
  color: #fff; padding: 100px 0 80px;
  position: relative; overflow: hidden;
}
.hero h1 { font-size: 2.75rem; font-weight: 800; line-height: 1.15; margin-bottom: 20px; max-width: 720px; letter-spacing: -0.02em; }
.hero p { font-size: 1.125rem; max-width: 640px; margin-bottom: 32px; opacity: 0.92; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }
.hero-badge { background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.25); padding: 6px 16px; border-radius: 20px; font-size: 0.8125rem; font-weight: 500; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 14px 32px; border-radius: 6px; font-weight: 600; font-size: 1rem; transition: all 0.2s; cursor: pointer; border: none; }
.btn-primary { background: #dd6b20; color: #fff; }
.btn-primary:hover { background: #c05621; color: #fff; }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }
.btn-dark { background: #1a365d; color: #fff; }
.btn-dark:hover { background: #2c5282; color: #fff; }
@media (max-width: 600px) {
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
}

/* --- Section Heading --- */
.section-heading { text-align: center; margin-bottom: 56px; }
.section-heading h2 { font-size: 2rem; font-weight: 700; color: #1a365d; margin-bottom: 12px; letter-spacing: -0.02em; }
.section-heading p { font-size: 1.0625rem; color: #718096; max-width: 640px; margin: 0 auto; }
@media (max-width: 600px) {
  .section-heading h2 { font-size: 1.625rem; }
}

/* --- Cards --- */
.card {
  background: #fff; border: 1px solid #e2e8f0; border-radius: 10px;
  padding: 32px; transition: all 0.25s; height: 100%;
}
.card:hover { border-color: #dd6b20; box-shadow: 0 8px 24px rgba(0,0,0,0.08); transform: translateY(-2px); }
.card-icon { font-size: 2rem; margin-bottom: 16px; }
.card h3 { font-size: 1.25rem; font-weight: 600; color: #1a365d; margin-bottom: 8px; }
.card p { font-size: 0.9375rem; color: #4a5568; margin-bottom: 12px; }
.card-link { font-size: 0.875rem; font-weight: 600; color: #dd6b20; }

/* --- Stats --- */
.stats { background: #1a365d; color: #fff; padding: 64px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-num { font-size: 2.5rem; font-weight: 800; color: #dd6b20; }
.stat-label { font-size: 0.875rem; opacity: 0.8; margin-top: 4px; }
@media (max-width: 900px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}
@media (max-width: 500px) {
  .stats-grid { grid-template-columns: 1fr; }
}

/* --- Page Hero (inner pages) --- */
.page-hero { background: #1a365d; color: #fff; padding: 64px 0 48px; }
.page-hero h1 { font-size: 2.25rem; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.02em; }
.page-hero p { font-size: 1.0625rem; opacity: 0.9; max-width: 720px; }
.breadcrumb { font-size: 0.8125rem; opacity: 0.7; margin-bottom: 16px; }
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: #fff; }

/* --- Content --- */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.5rem; font-weight: 600; color: #1a365d; margin: 40px 0 16px; }
.prose h3 { font-size: 1.125rem; font-weight: 600; color: #2d3748; margin: 28px 0 12px; }
.prose p { margin-bottom: 16px; color: #2d3748; }
.prose ul { list-style: disc; padding-left: 24px; margin-bottom: 16px; }
.prose ul li { margin-bottom: 8px; color: #2d3748; }
.prose table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.prose th, .prose td { border: 1px solid #e2e8f0; padding: 10px 16px; text-align: left; font-size: 0.9375rem; }
.prose th { background: #f7fafc; font-weight: 600; color: #1a365d; }

/* --- FAQ --- */
.faq-item { border-bottom: 1px solid #e2e8f0; padding: 20px 0; }
.faq-item summary { font-weight: 600; color: #1a365d; cursor: pointer; font-size: 1.0625rem; }
.faq-item summary::marker { color: #dd6b20; }
.faq-item[open] summary { margin-bottom: 12px; }
.faq-item p { color: #4a5568; font-size: 0.9375rem; }

/* --- CTA Section --- */
.cta-section { background: #1a365d; color: #fff; padding: 64px 0; text-align: center; }
.cta-section h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
.cta-section p { font-size: 1.0625rem; opacity: 0.9; margin-bottom: 32px; }

/* --- Footer --- */
.site-footer { background: #1a202c; color: #a0aec0; padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 500px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer-brand { font-size: 1.25rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.footer-brand span { color: #dd6b20; }
.footer-col h4 { font-size: 0.875rem; font-weight: 600; color: #fff; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.875rem; color: #a0aec0; }
.footer-col ul li a:hover { color: #dd6b20; }
.footer-bottom { border-top: 1px solid #2d3748; padding-top: 24px; text-align: center; font-size: 0.8125rem; }

/* --- RFQ Form --- */
.rfq-form { max-width: 640px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 500; color: #2d3748; margin-bottom: 6px; font-size: 0.9375rem; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px; border: 1px solid #cbd5e0; border-radius: 6px;
  font-size: 0.9375rem; font-family: inherit; transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: #dd6b20;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* --- Tag --- */
.tag { display: inline-block; background: #ebf8ff; color: #1a365d; padding: 4px 12px; border-radius: 4px; font-size: 0.75rem; font-weight: 600; margin-right: 6px; margin-bottom: 6px; }

/* --- Certification Badges --- */
.cert-badges { display: flex; flex-wrap: wrap; gap: 24px; justify-content: center; margin-top: 32px; }
.cert-badge {
  background: #fff; border: 2px solid #e2e8f0; border-radius: 10px;
  padding: 24px 32px; text-align: center; min-width: 200px;
}
.cert-badge .cert-name { font-size: 1.125rem; font-weight: 700; color: #1a365d; }
.cert-badge .cert-num { font-size: 0.75rem; color: #718096; margin-top: 4px; }
.cert-badge .cert-body { font-size: 0.8125rem; color: #4a5568; margin-top: 2px; }

/* --- Blog List --- */
.blog-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
@media (max-width: 900px) { .blog-list { grid-template-columns: 1fr; } }
.blog-card { border: 1px solid #e2e8f0; border-radius: 10px; overflow: hidden; transition: all 0.25s; }
.blog-card:hover { border-color: #dd6b20; box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.blog-card-body { padding: 24px; }
.blog-card .meta { font-size: 0.75rem; color: #718096; margin-bottom: 8px; }
.blog-card h3 { font-size: 1.125rem; font-weight: 600; color: #1a365d; margin-bottom: 8px; }
.blog-card p { font-size: 0.875rem; color: #4a5568; }

/* --- Misc --- */
.text-center { text-align: center; }
.mt-2 { margin-top: 16px; }
.mt-4 { margin-top: 32px; }
.mb-2 { margin-bottom: 16px; }
.bg-light { background: #f7fafc; }
.text-accent { color: #dd6b20; }
.lead { font-size: 1.125rem; color: #4a5568; }