/* ==========================================================
   EBB Business Build Library — index sidebar
   ========================================================== */

.build-library-page {
  --build-lib-cream: #f7f4ec;
  --build-lib-ink: #1f1f1f;
  --build-lib-muted: #5c5a54;
  --build-lib-gold: #c8a24d;
  --build-lib-gold-bright: #e3c06a;
  --build-lib-gold-dark: #a8842f;
  --build-lib-gold-soft: #e8d5a8;
  --build-lib-sidebar: #0a1025;
  --build-lib-sidebar-deep: #050816;
  --build-lib-sidebar-text: #d8d2c4;
  --build-lib-header-offset: 88px;
  --build-lib-sans: "Segoe UI", Inter, Arial, sans-serif;
  background: var(--build-lib-cream);
  color: var(--build-lib-ink);
  font-family: var(--build-lib-sans);
}

.build-library-page .site-header {
  background:
    linear-gradient(
      180deg,
      var(--build-lib-sidebar) 0%,
      rgba(10, 16, 37, 0.98) 100%
    );
  backdrop-filter: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.build-library-page .site-footer {
  margin-top: 0;
  background:
    linear-gradient(
      180deg,
      var(--build-lib-sidebar-deep) 0%,
      var(--build-lib-sidebar) 100%
    );
  backdrop-filter: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.build-library-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  align-items: start;
}

.build-library-sidebar {
  position: sticky;
  top: var(--build-lib-header-offset);
  align-self: start;
  z-index: 40;
  padding: 1.75rem 1.25rem 2rem;
  background:
    linear-gradient(
      180deg,
      var(--build-lib-sidebar) 0%,
      var(--build-lib-sidebar-deep) 100%
    );
  color: var(--build-lib-sidebar-text);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.build-library-sidebar-label {
  margin: 0 0 0.85rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(200, 162, 77, 0.72);
}

.build-library-sidebar-label + .build-library-nav {
  margin-bottom: 1.75rem;
}

.build-library-nav,
.build-library-topics {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.build-library-nav-item {
  display: grid;
  grid-template-columns: 1.15rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  margin: 0;
  padding: 0.62rem 0.75rem;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--build-lib-sidebar-text);
  font: inherit;
  font-size: 0.88rem;
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.build-library-nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.build-library-nav-item.is-active {
  background: linear-gradient(135deg, var(--build-lib-gold-soft), #dcc88f);
  color: #1a1408;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.build-library-nav-item.is-active .build-library-nav-count {
  background: rgba(26, 20, 8, 0.08);
  color: #1a1408;
}

.build-library-nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.15rem;
  height: 1.15rem;
  flex-shrink: 0;
  color: var(--build-lib-gold-bright);
}

.build-library-nav-icon svg {
  display: block;
  width: 1.05rem;
  height: 1.05rem;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 4px rgba(200, 162, 77, 0.22));
}

.build-library-nav-item:hover .build-library-nav-icon {
  color: #f0d48a;
}

.build-library-nav-item.is-active .build-library-nav-icon {
  color: var(--build-lib-gold-dark);
  filter: drop-shadow(0 0 3px rgba(168, 132, 47, 0.35));
}

.build-library-nav-text {
  min-width: 0;
}

.build-library-nav-count {
  min-width: 1.65rem;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: rgba(200, 162, 77, 0.12);
  color: rgba(232, 208, 138, 0.92);
  font-size: 0.72rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.2;
}

.build-library-nav-item.is-active .build-library-nav-count {
  background: rgba(26, 20, 8, 0.08);
  color: #1a1408;
}

.build-library-main {
  min-width: 0;
  padding: 2rem 2.5rem 3rem;
}

.build-library-intro {
  max-width: 760px;
  margin-bottom: 2.5rem;
}

.build-library-eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--build-lib-gold-dark);
}

.build-library-heading {
  margin: 0 0 1rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 3vw, 2.75rem);
  line-height: 1.12;
  color: var(--build-lib-sidebar);
}

.build-library-lead {
  margin: 0 0 1.5rem;
  max-width: 42rem;
  color: var(--build-lib-muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

.build-library-stat {
  display: inline-flex;
  align-items: baseline;
  gap: 0.65rem;
  padding: 0.85rem 1.1rem;
  border-radius: 12px;
  background: rgba(200, 162, 77, 0.12);
  border: 1px solid rgba(200, 162, 77, 0.22);
}

.build-library-stat-value {
  font-size: 1.75rem;
  line-height: 1;
  color: var(--build-lib-sidebar);
}

.build-library-stat-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--build-lib-muted);
}

.build-library-section-title {
  margin: 0 0 1.25rem;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--build-lib-sidebar);
}

.build-library-featured {
  margin-bottom: 2.75rem;
}

.build-library-featured-card {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 1.75rem;
  padding: 1.5rem;
  border-radius: 18px;
  background: #fff;
  border: 1px solid rgba(31, 31, 31, 0.08);
  box-shadow: 0 18px 40px rgba(10, 16, 37, 0.08);
  color: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.build-library-featured-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 48px rgba(10, 16, 37, 0.12);
}

.build-library-featured-media,
.build-library-card-media {
  overflow: hidden;
  border-radius: 12px;
  background: linear-gradient(180deg, #f7f3ea, #ece4d6);
}

.build-library-featured-media img,
.build-library-card-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.build-library-featured-media {
  aspect-ratio: 2 / 3;
}

.build-library-featured-body,
.build-library-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.build-library-featured-title,
.build-library-card-title {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  line-height: 1.25;
  color: var(--build-lib-sidebar);
}

.build-library-featured-title {
  font-size: clamp(1.5rem, 2vw, 2rem);
}

.build-library-featured-description,
.build-library-card-description {
  margin: 0;
  color: var(--build-lib-muted);
  font-size: 0.96rem;
  line-height: 1.65;
}

.build-library-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.build-library-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  background: rgba(200, 162, 77, 0.14);
  color: var(--build-lib-gold-dark);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.build-library-tag--secondary {
  background: rgba(10, 16, 37, 0.06);
  color: var(--build-lib-muted);
}

.build-library-card-cta {
  margin-top: auto;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--build-lib-gold-dark);
}

.build-library-grid-section {
  margin-top: 0.5rem;
}

.build-library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.35rem;
}

.build-library-card {
  min-width: 0;
}

.build-library-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(31, 31, 31, 0.08);
  box-shadow: 0 10px 24px rgba(10, 16, 37, 0.06);
  overflow: hidden;
  color: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.build-library-card-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(10, 16, 37, 0.1);
}

.build-library-card-media {
  aspect-ratio: 16 / 10;
}

.build-library-card-body {
  flex: 1;
  padding: 1rem 1rem 1.15rem;
}

.build-library-grid-empty {
  margin: 1rem 0 0;
  color: var(--build-lib-muted);
  font-size: 0.95rem;
}

.build-library-cover-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 1rem;
  text-align: center;
  gap: 0.35rem;
  border: 1px dashed rgba(200, 162, 77, 0.45);
  color: var(--build-lib-muted);
  box-sizing: border-box;
}

.build-library-cover-placeholder-label {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--build-lib-gold-dark);
}

.build-library-cover-placeholder-title {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.78rem;
  line-height: 1.35;
  color: #3f3d38;
}

.build-library-cover-placeholder--featured .build-library-cover-placeholder-title {
  font-size: 0.95rem;
}

.build-library-main-placeholder {
  max-width: 42rem;
  margin: 0;
  color: var(--build-lib-muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

@media (max-width: 960px) {
  .build-library-shell {
    grid-template-columns: 1fr;
  }

  .build-library-sidebar {
    position: relative;
    top: 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .build-library-main {
    padding: 1.5rem 1.25rem 2.5rem;
  }

  .build-library-featured-card {
    grid-template-columns: 1fr;
  }

  .build-library-featured-media {
    max-width: 280px;
  }
}