/* ===== BUILD LOG HERO ===== */
.build-hero {
  padding-top: 160px;
  padding-bottom: 40px;
}

.build-hero-content {
  max-width: 700px;
}

.build-hero-subtitle {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.build-hero-title {
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  color: var(--color-text-primary);
}

html.dark .build-hero-title {
  color: #ffffff;
}

.build-hero-tagline {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
  max-width: 600px;
}

.build-hero-intro {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 560px;
}

/* ===== FILTER BAR ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 64px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 60px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.01em;
}

.filter-btn:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
}

.filter-btn.active {
  background: var(--color-cta-bg);
  color: var(--color-cta-text);
  border-color: var(--color-cta-bg);
}

.filter-btn .filter-emoji {
  font-size: 0.85rem;
}

/* ===== TIMELINE ===== */
.build-timeline {
  position: relative;
  padding-left: 40px;
}

.build-timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent) 0%, rgba(111, 76, 255, 0.15) 100%);
  border-radius: 2px;
}

/* ===== MONTH HEADER ===== */
.month-header {
  position: relative;
  margin-bottom: 32px;
  margin-top: 64px;
}

.month-header:first-child {
  margin-top: 0;
}

.month-header::before {
  content: '';
  position: absolute;
  left: -40px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.month-title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.8rem;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

/* ===== BUILD ENTRY ===== */
.build-entry {
  position: relative;
  padding: 20px 28px;
  margin-bottom: 16px;
  background: var(--color-bg-elevated);
  border-radius: 16px;
  border: 1px solid var(--color-border);
  transition: all 0.4s ease;
}

.build-entry:hover {
  transform: translateX(4px);
  box-shadow: 0 8px 32px var(--color-shadow);
  border-color: var(--color-border-hover);
}

.build-entry::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 28px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-bg-elevated);
  border: 2px solid var(--color-text-ghost);
  transition: border-color 0.3s ease;
}

.build-entry:hover::before {
  border-color: var(--color-accent);
}

.build-entry-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

/* ===== CATEGORY PILLS ===== */
.category-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 12px;
  border-radius: 60px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.category-pill .pill-emoji {
  font-size: 0.75rem;
}

.pill-shipped {
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
}

.pill-research {
  background: rgba(59, 130, 246, 0.1);
  color: #2563eb;
}

.pill-built {
  background: var(--color-accent-bg);
  color: var(--color-accent);
}

.pill-content {
  background: rgba(255, 107, 157, 0.1);
  color: #e11d6d;
}

.pill-personal {
  background: rgba(107, 114, 128, 0.1);
  color: #6b7280;
}

.pill-career {
  background: rgba(245, 158, 11, 0.1);
  color: #d97706;
}

/* Dark mode pill overrides */
html.dark .pill-shipped {
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
}

html.dark .pill-research {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
}

html.dark .pill-content {
  background: rgba(255, 107, 157, 0.15);
  color: #fb7ea8;
}

.build-entry-title {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.build-entry-desc {
  font-size: 0.92rem;
  color: var(--color-text-tertiary);
  line-height: 1.7;
}

.build-entry-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 500;
  transition: gap 0.3s ease;
}

.build-entry-link:hover {
  gap: 8px;
}

.build-entry-link svg {
  width: 12px;
  height: 12px;
}

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.animate {
  opacity: 0;
  transform: translateY(24px);
}

.fade-in.animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hidden entries during filter */
.build-entry.hidden {
  display: none;
}

.month-header.hidden {
  display: none;
}

/* ===== BUILDS RESPONSIVE ===== */
@media (max-width: 768px) {
  .build-hero { min-height: auto; padding-top: 120px; padding-bottom: 40px; }

  .build-timeline {
    padding-left: 32px;
  }

  .build-timeline::before {
    left: 5px;
  }

  .month-header::before {
    left: -32px;
    width: 12px;
    height: 12px;
  }

  .build-entry::before {
    left: -26px;
    width: 8px;
    height: 8px;
  }

  .build-entry {
    padding: 16px 20px;
  }

  .month-title {
    font-size: 1.4rem;
  }

  .filter-bar {
    gap: 8px;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 0.75rem;
  }
}