:root {
  --navy: #081a3c;
  --blue: #1d6fe8;
  --sky: #eef5ff;
  --gold: #db9f2f;
  --ink: #17324d;
  --muted: #60748b;
  --line: #dbe6f2;
}

body { font-family: "Segoe UI", Arial, sans-serif; color: var(--ink); background: linear-gradient(180deg, #fbfdff 0%, #f3f8fd 100%); }
.navbar-brand img { width: 66px; height: 66px; object-fit: contain; }
.brand-copy small { color: var(--muted); display: block; letter-spacing: .04em; }
.sample-nav .nav-link { color: var(--ink) !important; font-weight: 600; border-radius: 999px; padding: .55rem .95rem !important; }
.sample-nav .nav-link:hover, .sample-nav .nav-link:focus, .sample-nav .nav-link.active { background: var(--sky); color: var(--blue) !important; }
.listing-hero, .article-hero { color: #fff; background: linear-gradient(120deg, rgba(8, 26, 60, .92), rgba(16, 69, 142, .8)), url("../images/steveblakeconcreting-construction-10201451_1280.jpg") center/cover; }
.listing-hero { padding: 4rem 0 3rem; }
.listing-hero h1, .article-hero h1 { max-width: 980px; font-weight: 800; line-height: 1.05; }
.listing-hero h1 { font-size: clamp(2.35rem, 5vw, 4.7rem); }
.listing-hero p, .article-hero p { max-width: 760px; color: rgba(255, 255, 255, .9); font-size: 1.08rem; line-height: 1.7; }
.article-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.25rem; padding-top: 2.5rem; padding-bottom: 3rem; }
.article-card { overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 14px 34px rgba(23, 50, 77, .08); }
.article-card-media { display: block; aspect-ratio: 16 / 9; background: #dfe9f6; }
.article-card-media img { width: 100%; height: 100%; object-fit: cover; }
.article-card-body { padding: 1.2rem; }
.article-date { display: inline-block; margin-bottom: .7rem; color: var(--muted); font-size: .86rem; font-weight: 700; }
.article-card h2 { margin-bottom: .75rem; font-size: 1.3rem; line-height: 1.25; }
.article-card h2 a { color: var(--ink); text-decoration: none; }
.article-card p { color: var(--muted); line-height: 1.6; }
.read-link, .back-link, footer a { color: var(--blue); font-weight: 700; text-decoration: none; }
.read-link:hover, .back-link:hover, footer a:hover { text-decoration: underline; }
.article-hero { padding: 3.5rem 0 2.5rem; }
.back-link { display: inline-flex; gap: .45rem; align-items: center; margin-bottom: 1.2rem; color: #fff; }
.article-hero-image { width: min(100%, 980px); max-height: 520px; margin-top: 1.2rem; border-radius: 8px; object-fit: cover; box-shadow: 0 22px 54px rgba(5, 15, 34, .28); }
.article-body { max-width: 880px; padding-top: 2.5rem; padding-bottom: 3.5rem; font-size: 1.04rem; line-height: 1.75; }
.article-body h2, .article-body h3, .article-body h4 { margin-top: 2rem; margin-bottom: .9rem; font-weight: 800; line-height: 1.22; }
.article-body img { max-width: 100%; height: auto; border-radius: 8px; }
.article-body a { color: var(--blue); font-weight: 700; }
.article-body blockquote { margin: 1.5rem 0; padding-left: 1rem; color: var(--muted); border-left: 4px solid var(--gold); }
footer { background: #fff; border-top: 1px solid var(--line); color: var(--muted); }