/* Site-level tweaks on top of Bootstrap */
:root {
  --brand: #0f766e;
  --brand-dark: #0d5f59;
  --surface: #f4f7f8;
  --ink: #0f172a;
  --muted: #64748b;
  --card: #ffffff;
  --line: rgba(15, 23, 42, 0.08);
  --hero-glow: radial-gradient(1200px 480px at 10% -10%, rgba(15, 118, 110, 0.14), transparent 55%),
    radial-gradient(900px 420px at 90% 0%, rgba(14, 116, 144, 0.1), transparent 50%),
    var(--surface);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  color: var(--ink);
}

main {
  flex: 1;
}

.navbar-brand {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-link.active {
  font-weight: 600;
}

.hero {
  padding: 4.5rem 0 3.25rem;
  background: var(--hero-glow);
  border-bottom: 1px solid var(--line);
}

.hero-eyebrow {
  color: var(--brand);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.hero h1 {
  font-weight: 700;
  letter-spacing: -0.03em;
}

.featured-section {
  padding: 3rem 0 4rem;
}

.project-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.project-card:hover {
  border-color: rgba(15, 118, 110, 0.35);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.06);
  transform: translateY(-2px);
}

.project-card-image {
  display: block;
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.project-card-body {
  padding: 1.25rem 1.35rem 1.4rem;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tech-tags li {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brand-dark);
  background: rgba(15, 118, 110, 0.1);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}

.project-description {
  line-height: 1.7;
  color: #334155;
}

.letter-spaced {
  letter-spacing: 0.06em;
}

.resume-skills li + li {
  margin-top: 0.65rem;
}

.resume-item ul {
  padding-left: 1.1rem;
}

.resume-item li + li {
  margin-top: 0.35rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0;
  color: var(--muted);
  font-size: 0.9rem;
  background: #fff;
}

.btn-brand {
  background-color: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.btn-brand:hover,
.btn-brand:focus {
  background-color: var(--brand-dark);
  border-color: var(--brand-dark);
  color: #fff;
}

.contact-form .form-control:focus {
  border-color: rgba(15, 118, 110, 0.55);
  box-shadow: 0 0 0 0.2rem rgba(15, 118, 110, 0.15);
}