/* ==========================================================
   Theme
   ========================================================== */
:root {
  --brand-primary: #0b1f3a;      /* main dark colour (nav, hero, footer) */
  --brand-accent: #14b8a6;       /* buttons, links, highlights */
  --brand-accent-dark: #0f8f81;  /* hover state for accent */
  --brand-light: #f4f7fb;        /* light section backgrounds */
  --brand-text: #1f2a37;         /* body text */
  --brand-muted: #5b6b7f;        /* secondary text */
  --brand-font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --brand-heading-font: "Space Grotesk", var(--brand-font);
  --radius: 0.75rem;
}

body {
  font-family: var(--brand-font);
  color: var(--brand-text);
  background: #fff;
  line-height: 1.65;
}

h1, h2, h3, h4, h5, .navbar-brand {
  font-family: var(--brand-heading-font);
  font-weight: 700;
  letter-spacing: -0.01em;
}

a { color: var(--brand-accent-dark); }
a:hover { color: var(--brand-primary); }

/* Buttons */
.btn-accent {
  background: var(--brand-accent);
  border-color: var(--brand-accent);
  color: #fff;
  font-weight: 600;
}
.btn-accent:hover, .btn-accent:focus {
  background: var(--brand-accent-dark);
  border-color: var(--brand-accent-dark);
  color: #fff;
}
.btn-outline-light { font-weight: 600; }

/* Navbar */
.site-nav {
  background: var(--brand-primary);
}
.site-nav .nav-link {
  color: rgba(255,255,255,.8);
  font-weight: 500;
  font-size: 0.75rem;
}
.site-nav .nav-link:hover,
.site-nav .nav-link.active { color: #fff; }
.site-nav .nav-link.active { box-shadow: inset 0 -2px 0 var(--brand-accent); }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2rem; height: 2rem;
  border-radius: 0.5rem;
  background: var(--brand-accent);
  color: var(--brand-primary);
  margin-right: .5rem;
}

/* Hero */
.hero {
  background:
    radial-gradient(circle at 85% 20%, rgba(20,184,166,.25), transparent 45%),
    linear-gradient(160deg, var(--brand-primary) 0%, #132f55 100%);
  color: #fff;
  padding: 6rem 0 5rem;
}
.hero .lead { color: rgba(255,255,255,.82); }
.hero-sm { padding: 4rem 0 3rem; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .8rem;
  font-weight: 600;
  color: var(--brand-accent);
}

/* Sections */
.section { padding: 5rem 0; }
.section-light { background: var(--brand-light); }
.text-muted-brand { color: var(--brand-muted); }

/* Cards */
.feature-card {
  position: relative; /* keeps .stretched-link inside its card */
  border: 1px solid #e3e9f1;
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1rem;
  height: 100%;
  background: #fff;
  transition: transform .2s ease, box-shadow .2s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(11,31,58,.08);
}
.icon-badge {
  width: 3rem; height: 3rem;
  border-radius: .75rem;
  display: grid; place-items: center;
  background: rgba(20,184,166,.12);
  color: var(--brand-accent-dark);
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

/* Stats */
.stat-number {
  font-family: var(--brand-heading-font);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--brand-primary);
}

/* CTA band */
.cta-band {
  background: var(--brand-primary);
  color: #fff;
  border-radius: var(--radius);
  padding: 3rem;
}

/* Placeholder image block */
.img-placeholder {
  background: repeating-linear-gradient(45deg, #e8eef5, #e8eef5 12px, #f1f5f9 12px, #f1f5f9 24px);
  border-radius: var(--radius);
  min-height: 280px;
  display: grid; place-items: center;
  color: var(--brand-muted);
  font-size: .9rem;
}

/* Footer */
.site-footer {
  background: var(--brand-primary);
  color: rgba(255,255,255,.75);
  padding: 4rem 0 2rem;
}
.site-footer a { color: rgba(255,255,255,.75); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer h6 { color: #fff; font-weight: 600; margin-bottom: 1rem; }

/* Forms */
.form-control:focus, .form-select:focus {
  border-color: var(--brand-accent);
  box-shadow: 0 0 0 .2rem rgba(20,184,166,.2);
}

/* Sidebar cards (biography pages): use with .feature-card */
.feature-card.sidebar-card {
  height: auto;
  padding: 1.25rem 1.5rem;
}
.sidebar-card + .sidebar-card { margin-top: 1rem; }
.sidebar-card h2 { font-size: .75rem; letter-spacing: .08em; margin-bottom: .75rem; }
.sidebar-card ul li { font-size: .75rem; margin-bottom: .4rem; }
.sidebar-card ul li:last-child { margin-bottom: 0; }

 /* Article card images (assets/img/posts, 720x360 at 2:1, shown 180px high) */
 .post-thumb { display: block; width: 100%; height: 180px; object-fit: cover; background: var(--brand-primary); }