body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: 0.01em;
}

// ── Logo ──

.logo {
  content: "";
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: linear-gradient(
    135deg,
    rgb(14, 63, 180) 0%,
    rgb(107, 158, 120) 100%
  );
  width: 36px;
  height: 36px;
  margin-top: auto;
  margin-bottom: auto;
  border-radius: 3px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  position: relative;
  text-decoration: none !important;

  &::after {
    content: ">_";
    font-family: monospace;
    font-weight: bold;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1;
    text-decoration: none;
  }

  &[style*="width: 20px"]::after {
    font-size: 8px;
  }

  &:hover {
    transform: rotate(12deg) scale(1.08);
    box-shadow: 0 0 14px rgba(107, 158, 120, 0.3);
  }
}

// ── Navbar ──

.navbar {
  border-bottom: 1px solid rgba(107, 158, 120, 0.06);

  .navbar-toggler {
    color: rgba(221, 215, 205, 0.7);
    padding: 0.35rem 0.55rem;
    font-size: 1rem;

    &:focus { box-shadow: none; }
  }

  .nav-link {
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    padding-left: 1rem !important;
    padding-right: 1rem !important;
    text-transform: lowercase;
    position: relative;

    &::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 1rem;
      right: 1rem;
      height: 1px;
      background: #6b9e78;
      box-shadow: 0 0 6px rgba(107, 158, 120, 0.3);
      transform: scaleX(0);
      transition: transform 250ms ease;
    }

    &:hover::after,
    &.active::after {
      transform: scaleX(1);
    }
  }

  // ── Mobile (under 768px): stacked drawer ──
  // The blog navbar shows tag links (ai, coding, databases, …); on phones
  // they need to stack as a clean drawer beneath the brand row, not float
  // dim-on-dim into the page content. Top-rule separator, full-width tap
  // targets, left accent for active.
  @media (max-width: 767.98px) {
    .navbar-collapse {
      width: 100%;
      border-top: 1px solid rgba(107, 158, 120, 0.08);
      margin-top: 0.5rem;
      padding: 0.4rem 0 0.6rem;
    }

    .navbar-nav {
      margin-left: 0 !important;
      width: 100%;
    }

    .nav-link {
      padding: 0.65rem 0.75rem !important;
      border-left: 2px solid transparent;
      border-radius: 2px;
      transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;

      &::after { display: none; }

      &:hover {
        background: rgba(221, 215, 205, 0.04);
        color: #ddd7cd;
      }

      &.active {
        color: #ddd7cd;
        border-left-color: #6b9e78;
        background: rgba(107, 158, 120, 0.08);
      }
    }
  }
}

// ── Breadcrumb bar ──

.breadcrumb-bar {
  background: rgba(107, 158, 120, 0.02);
  border-bottom: 1px solid rgba(107, 158, 120, 0.04);
}

// ── Footer ──

footer {
  padding-top: 4rem;
  position: relative;

  .links {
    padding-top: 4rem;
    padding-bottom: 2rem;
    position: relative;
    z-index: 20;
  }

  .h5 {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(201, 168, 76, 0.55);
    font-weight: 600;
  }

  p {
    color: rgba(221, 215, 205, 0.5);
    font-size: 0.88rem;
    line-height: 1.75;

    a {
      color: rgba(221, 215, 205, 0.75);
      text-decoration: underline;
      text-underline-offset: 2px;
      transition: color 200ms ease;

      &:hover {
        color: #ddd7cd;
      }
    }
  }
}

// ── Footer bar (sosumi) ──

.footer-bar {
  background: #070605;
  border-top: 1px solid rgba(107, 158, 120, 0.05);
  padding: 1rem 0;
  color: rgba(221, 215, 205, 0.3);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  position: relative;
  z-index: 20;

  small {
    color: rgba(221, 215, 205, 0.3);
  }

  &-link {
    color: rgba(221, 215, 205, 0.3);
    transition: color 200ms ease;

    &:hover {
      color: #ddd7cd;
    }
  }
}

// ── Footer animated plane ──

.footer-plane {
  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
  z-index: 10;
  perspective: 350px;

  &-overlay {
    width: 100%;
    height: 100%;
    position: absolute;
    z-index: 11;
    background: radial-gradient(
      ellipse at 50% 50%,
      rgba(9, 8, 6, 0) 0,
      rgb(9, 8, 6) 80%
    );
  }

  @keyframes footer-plane-keyframes {
    0% {
      transform: rotateX(45deg) translateY(-50%);
    }

    to {
      transform: rotateX(45deg) translateY(0);
    }
  }

  &-grid {
    position: relative;
    width: 100%;
    height: 200%;
    background-image: linear-gradient(
        90deg,
        rgba(107, 158, 120, 0.18) 1px,
        transparent 0
      ),
      linear-gradient(180deg, rgba(107, 158, 120, 0.18) 1px, transparent 0);
    background-size: 40px 30px;
    background-repeat: repeat;
    transform-origin: 100% 0 0;
    animation: footer-plane-keyframes 17s linear infinite;
  }
}

// ── Section labels — terminal-prompt style with amber ──

.section-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #c9a84c;

  &::before {
    content: '> ';
    opacity: 0.5;
  }
}

// ── Card hover effects ──

.card {
  transition: border-color 250ms ease, box-shadow 250ms ease;

  &:hover {
    border-color: rgba(107, 158, 120, 0.18);
    box-shadow: 0 0 20px rgba(107, 158, 120, 0.04);
  }
}

// ── Search form — terminal style ──

.search-form {
  .search-icon {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: #665f56;
    pointer-events: none;
    z-index: 2;
  }

  .search-input {
    padding-left: 2.5rem;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    border: 1px solid rgba(107, 158, 120, 0.15);
    background: rgba(19, 18, 14, 0.6);
    color: #ddd7cd;
    transition: border-color 200ms ease, box-shadow 200ms ease;

    &::placeholder {
      color: #665f56;
      font-style: normal;
    }

    &:focus {
      border-color: rgba(107, 158, 120, 0.4);
      box-shadow: 0 0 0 2px rgba(107, 158, 120, 0.1);
      background: #13120e;
    }
  }
}

// ── Live search results ──

#id_search_results .list-group-item {
  color: #ddd7cd;
  border-color: rgba(107, 158, 120, 0.08);

  .fw-bold {
    color: #ddd7cd;
  }

  &.active {
    background: rgba(107, 158, 120, 0.12);
    border-color: rgba(107, 158, 120, 0.2);
    color: #ddd7cd;
  }

  &:hover {
    background: rgba(107, 158, 120, 0.08);
  }
}

// ── Blog index filter pills ──

.filter-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #c9a84c;
  opacity: 0.7;
}

.filter-divider {
  width: 1px;
  height: 1.2rem;
  background: rgba(221, 215, 205, 0.1);
  margin: 0 0.25rem;
}

.btn-filter {
  background: rgba(221, 215, 205, 0.04);
  color: #a09890;
  border: 1px solid rgba(221, 215, 205, 0.08);
  font-size: 0.75rem;
  line-height: 1;
  padding: 0.4rem 0.75rem;
  display: inline-flex;
  align-items: center;
  transition: all 200ms ease;

  &:hover {
    background: rgba(107, 158, 120, 0.1);
    color: #ddd7cd;
    border-color: rgba(107, 158, 120, 0.2);
  }
}

.btn-filter-active {
  background: rgba(107, 158, 120, 0.15);
  color: #7db88c;
  border: 1px solid rgba(107, 158, 120, 0.3);
  font-size: 0.75rem;
  line-height: 1;
  padding: 0.4rem 0.75rem;
  display: inline-flex;
  align-items: center;
}

.btn-filter-clear {
  background: rgba(196, 112, 85, 0.1);
  color: #c47055;
  border: 1px solid rgba(196, 112, 85, 0.2);
  font-size: 0.75rem;
  line-height: 1;
  padding: 0.4rem 0.75rem;
  display: inline-flex;
  align-items: center;
  transition: all 200ms ease;

  &:hover {
    background: rgba(196, 112, 85, 0.2);
    color: #d88a70;
    border-color: rgba(196, 112, 85, 0.35);
  }
}

// ── Vertical rule override ──

.vr {
  background-color: rgba(107, 158, 120, 0.12);
}