:root {
  --tux-dark: #061a33;
  --tux-dark-2: #0a2547;
  --tux-blue: #0d6efd;
  --tux-blue-soft: #e8f1ff;
  --tux-text: #172033;
  --tux-muted: #6c757d;
  --tux-border: #dce6f2;
  --tux-bg: #f3f7fb;
  --tux-white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--tux-bg);
  color: var(--tux-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--tux-blue);
}

a:hover {
  color: #084298;
}

.tux-navbar {
  background: linear-gradient(90deg, var(--tux-dark), var(--tux-dark-2));
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.navbar-brand {
  letter-spacing: 0.2px;
}

.brand-icon {
  font-size: 1.35rem;
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.86);
  font-weight: 500;
}

.navbar-dark .navbar-nav .nav-link:hover {
  color: #ffffff;
}

.hero {
  background:
    radial-gradient(circle at top right, rgba(13, 110, 253, 0.42), transparent 36%),
    linear-gradient(135deg, #061a33 0%, #0a2547 56%, #0e376d 100%);
  color: #ffffff;
  padding: 7rem 0 5rem;
}

.hero p {
  color: rgba(255, 255, 255, 0.88);
}

.hero .lead {
  color: #ffffff;
}

.image-placeholder {
  min-height: 340px;
  border-radius: 1.5rem;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.16), transparent 35%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.05));
  border: 1px solid rgba(255, 255, 255, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

.image-placeholder strong {
  display: block;
  font-size: 1.8rem;
  margin-bottom: 0.4rem;
}

.image-placeholder span {
  display: block;
  color: rgba(255, 255, 255, 0.8);
}

.placeholder-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.stats-box {
  height: 100%;
  padding: 1.25rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
}

.stats-box strong {
  display: block;
  color: #ffffff;
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.stats-box span {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
}

.section-title {
  font-weight: 800;
  color: var(--tux-dark);
  letter-spacing: -0.02em;
}

.service-card,
.project-card,
.feed-box {
  border: 1px solid var(--tux-border);
  border-radius: 1.25rem;
  box-shadow: 0 14px 35px rgba(6, 26, 51, 0.08);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.service-card:hover,
.project-card:hover,
.feed-box:hover {
  transform: translateY(-4px);
  border-color: rgba(13, 110, 253, 0.35);
  box-shadow: 0 20px 45px rgba(6, 26, 51, 0.13);
}

.icon-box {
  width: 48px;
  height: 48px;
  border-radius: 1rem;
  background: var(--tux-blue-soft);
  color: var(--tux-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.card-link-text {
  display: inline-block;
  color: var(--tux-blue);
  font-weight: 700;
  margin-top: 0.5rem;
}

.feed-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feed-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid #edf1f6;
}

.feed-list li:last-child {
  border-bottom: 0;
}

.feed-list a {
  display: block;
  text-decoration: none;
  font-weight: 650;
  color: var(--tux-dark);
  line-height: 1.35;
}

.feed-list a:hover {
  color: var(--tux-blue);
}

.feed-list span {
  display: block;
  color: var(--tux-muted);
  font-size: 0.82rem;
  margin-top: 0.2rem;
}

.feed-unavailable {
  background: #f8fafc;
  border: 1px dashed #cbd5e1;
  border-radius: 1rem;
  padding: 1rem;
  color: var(--tux-muted);
}

.list-check {
  list-style: none;
  padding: 0;
}

.list-check li {
  position: relative;
  padding-left: 1.8rem;
  margin-bottom: 0.75rem;
}

.list-check li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--tux-blue);
  font-weight: 800;
}

.cta {
  border-radius: 1.5rem;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.16), transparent 34%),
    linear-gradient(135deg, var(--tux-dark), var(--tux-dark-2));
  color: #ffffff;
  box-shadow: 0 24px 60px rgba(6, 26, 51, 0.22);
}

.cta p {
  color: rgba(255, 255, 255, 0.86);
}

.site-footer {
  background: linear-gradient(135deg, #041326, #061a33);
  color: rgba(255, 255, 255, 0.78);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
}

.footer-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-line {
  border-color: rgba(255, 255, 255, 0.16);
}

.btn-primary {
  background-color: #0d6efd;
  border-color: #0d6efd;
}

.btn-primary:hover {
  background-color: #0b5ed7;
  border-color: #0b5ed7;
}

.bg-white {
  background-color: #ffffff !important;
}

@media (max-width: 991.98px) {
  .hero {
    padding: 5rem 0 4rem;
  }

  .display-4 {
    font-size: 2.4rem;
  }

  .image-placeholder {
    min-height: 260px;
  }
}

@media (max-width: 575.98px) {
  .hero {
    padding: 4rem 0 3rem;
  }

  .cta {
    padding: 2rem !important;
  }
}