*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  :root {
    --navy: #1a3a5c; --navy-dark: #14304d; --green: #4a9040; --green-light: #5ba050;
    --white: #ffffff; --off-white: #f5f7fa; --gray: #6b7280; --gray-light: #e5e7eb; --text: #1f2937;
  }
  body { font-family: 'Inter', sans-serif; background: var(--white); color: var(--text); }
  nav { background: var(--navy); padding: 0 48px; display: flex; justify-content: space-between; align-items: center; height: 72px; }
  .nav-logo { display: flex; align-items: center; gap: 10px; color: var(--white); font-size: 18px; font-weight: 700; text-decoration: none; }
  .nav-logo-icon { width: 32px; height: 32px; background: var(--white); clip-path: polygon(50% 0%, 0% 100%, 100% 100%); opacity: 0.9; }
  .nav-links { display: flex; gap: 32px; list-style: none; }
  .nav-links a { color: rgba(255,255,255,0.85); text-decoration: none; font-size: 14px; font-weight: 500; }
  .nav-links a:hover { color: var(--white); }
  .nav-btn { background: var(--green); color: var(--white); font-size: 14px; font-weight: 600; padding: 10px 22px; border-radius: 4px; text-decoration: none; transition: background 0.2s; }
  .nav-btn:hover { background: var(--green-light); }
  .breadcrumb { background: var(--off-white); padding: 12px 48px; font-size: 13px; color: var(--gray); border-bottom: 1px solid var(--gray-light); }
  .breadcrumb a { color: var(--navy); text-decoration: none; }
  .breadcrumb a:hover { text-decoration: underline; }
  .breadcrumb span { margin: 0 6px; color: var(--gray); }
  .hero { background: var(--navy); padding: 56px 48px 48px; color: var(--white); }
  .hero-tag { display: inline-block; background: var(--green); color: var(--white); font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 3px; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 16px; }
  .hero h1 { font-size: 36px; font-weight: 700; line-height: 1.2; margin-bottom: 12px; max-width: 680px; }
  .hero p { font-size: 16px; color: rgba(255,255,255,0.75); max-width: 560px; line-height: 1.6; margin-bottom: 28px; }
  .hero-cta { display: inline-block; background: var(--green); color: var(--white); font-size: 14px; font-weight: 600; padding: 12px 28px; border-radius: 4px; text-decoration: none; transition: background 0.2s; }
  .hero-cta:hover { background: var(--green-light); }
  .facility-strip { background: var(--white); border-bottom: 1px solid var(--gray-light); display: grid; grid-template-columns: repeat(4, 1fr); }
  .facility-cell { padding: 24px 28px; border-right: 1px solid var(--gray-light); }
  .facility-cell:last-child { border-right: none; }
  .fc-label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray); margin-bottom: 6px; }
  .fc-value { font-size: 14px; font-weight: 500; color: var(--text); line-height: 1.4; }
  .main { max-width: 1100px; margin: 0 auto; padding: 48px 32px; display: grid; grid-template-columns: 1fr 320px; gap: 40px; }
  .section-title { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--green); margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--green); display: inline-block; }
  .positions { margin-bottom: 44px; }
  .position-card { border: 1px solid var(--gray-light); border-radius: 6px; padding: 22px 24px; margin-bottom: 14px; background: var(--white); transition: box-shadow 0.15s; }
  .position-card:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.08); }
  .pc-desc { font-size: 14px; color: #4b5563; line-height: 1.6; margin-bottom: 14px; }
  .pc-link { font-size: 13px; font-weight: 600; color: var(--navy); text-decoration: none; border-bottom: 1px solid var(--navy); padding-bottom: 1px; transition: color 0.15s; }
  .pc-link:hover { color: var(--green); border-color: var(--green); }
  .base-block { margin-bottom: 44px; }
  .base-img-placeholder { width: 100%; height: 200px; background: linear-gradient(135deg, #1a3a5c 0%, #2a5a8c 100%); border-radius: 6px; margin-bottom: 20px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.4); font-size: 13px; letter-spacing: 0.05em; }
  .base-block p { font-size: 14px; color: #4b5563; line-height: 1.7; margin-bottom: 14px; }
  .specialties-section { margin-bottom: 44px; }
  .specialty-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
  .specialty-card { border: 1px solid var(--gray-light); border-radius: 6px; padding: 18px 20px; background: var(--white); }
  .specialty-card h4 { font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
  .specialty-card h4::before { content: '★'; color: var(--green); font-size: 12px; }
  .specialty-card ul { list-style: none; display: flex; flex-direction: column; gap: 5px; }
  .specialty-card ul li { font-size: 12px; color: #4b5563; padding-left: 12px; position: relative; }
  .specialty-card ul li::before { content: '·'; position: absolute; left: 0; color: var(--green); font-weight: 700; }
  .dfars-block { background: var(--off-white); border: 1px solid var(--gray-light); border-left: 4px solid var(--navy); border-radius: 0 6px 6px 0; padding: 24px; margin-bottom: 44px; }
  .dfars-block .section-title { margin-bottom: 14px; }
  .dfars-block p { font-size: 13px; color: #4b5563; line-height: 1.7; margin-bottom: 10px; }
  .dfars-list { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
  .dfars-list li { display: flex; gap: 10px; font-size: 13px; color: #374151; line-height: 1.6; }
  .dfars-list li::before { content: '✓'; color: var(--green); font-weight: 700; flex-shrink: 0; margin-top: 1px; }
  .sidebar-card { border: 1px solid var(--gray-light); border-radius: 6px; padding: 24px; margin-bottom: 20px; background: var(--white); }
  .sidebar-card .section-title { margin-bottom: 16px; }
  .apply-btn { display: block; background: var(--green); color: var(--white); text-align: center; padding: 13px; border-radius: 4px; font-size: 14px; font-weight: 600; text-decoration: none; transition: background 0.2s; margin-bottom: 10px; }
  .apply-btn:hover { background: var(--green-light); }
  .contact-btn { display: block; background: transparent; color: var(--navy); text-align: center; padding: 12px; border-radius: 4px; font-size: 14px; font-weight: 600; text-decoration: none; border: 1px solid var(--navy); transition: all 0.2s; }
  .contact-btn:hover { background: var(--navy); color: var(--white); }
  .detail-list { display: flex; flex-direction: column; gap: 10px; }
  .detail-row { display: flex; justify-content: space-between; font-size: 13px; padding-bottom: 10px; border-bottom: 1px solid var(--gray-light); }
  .detail-row:last-child { border-bottom: none; padding-bottom: 0; }
  .detail-key { color: var(--gray); }
  .detail-val { font-weight: 500; color: var(--text); text-align: right; }
  .other-links { display: flex; flex-direction: column; gap: 8px; }
  .other-link { font-size: 13px; color: var(--navy); text-decoration: none; padding: 8px 0; border-bottom: 1px solid var(--gray-light); display: flex; justify-content: space-between; align-items: center; }
  .other-link:last-child { border-bottom: none; }
  .other-link:hover { color: var(--green); }
  .other-link::after { content: '→'; font-size: 12px; }
  footer { background: var(--navy); color: rgba(255,255,255,0.6); padding: 28px 48px; font-size: 12px; display: flex; justify-content: space-between; align-items: center; }
  footer a { color: rgba(255,255,255,0.6); text-decoration: none; }
  @media (max-width: 860px) {
    .main { grid-template-columns: 1fr; padding: 32px 20px; }
    .facility-strip { grid-template-columns: 1fr 1fr; }
    nav { padding: 0 20px; }
    .hero { padding: 40px 20px; }
    .specialty-cards { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .breadcrumb { padding: 10px 20px; }
  }