.page-header { position: relative; padding: var(--spacing-xl) 0; }

.hero-title {
  animation: heroEntry 1s ease-out;
  text-shadow: 0 0 60px color-mix(in oklab, var(--accent-purple), transparent 60%);
}

.hero-subtitle {
  font-size: var(--font-lg);
  color: var(--muted);
  font-weight: 500;
  animation: fadeIn 1s ease-out 0.3s both;
}

@keyframes heroEntry {
  from { opacity: 0; transform: translateY(-30px) scale(0.9); filter: blur(10px); }
  to   { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.intro-section {
  position: relative;
  padding: var(--spacing-xl);
  background: linear-gradient(135deg,
    color-mix(in oklab, var(--accent-purple), transparent 92%) 0%,
    color-mix(in oklab, var(--accent-cyan), transparent 94%) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transform-style: preserve-3d;
  transition: all var(--transition-base) ease;
}
.intro-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 40%, color-mix(in oklab, var(--accent-purple), transparent 85%) 0%, transparent 60%),
    radial-gradient(circle at 70% 60%, color-mix(in oklab, var(--accent-cyan), transparent 88%) 0%, transparent 60%);
  animation: float 8s ease-in-out infinite;
  pointer-events: none;
}
.intro-section::after {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink), var(--accent-cyan));
  border-radius: inherit;
  opacity: 0;
  z-index: -1;
  transition: opacity var(--transition-base) ease;
  filter: blur(20px);
}
.intro-section:hover { transform: translateY(-8px); box-shadow: 0 20px 60px color-mix(in oklab, var(--accent-purple), transparent 75%); }
.intro-section:hover::after { opacity: 0.4; }

@keyframes float { 0%,100% { transform: translate(0,0) scale(1); opacity: 0.3; } 50% { transform: translate(30px,-20px) scale(1.1); opacity: 0.5; } }

.intro-section > * { position: relative; z-index: 1; }

.intro-text { font-size: clamp(var(--font-base), 1.5vw, var(--font-lg)); line-height: 1.9; color: var(--ink); }

.location {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  margin-block-start: var(--spacing-sm);
  padding: 0.6em 1.2em;
  background: var(--surface);
  border-radius: var(--radius-sm);
  font-size: var(--font-sm);
  color: var(--accent-purple);
  font-weight: 600;
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px color-mix(in oklab, var(--accent-purple), transparent 90%);
}
.location::before { content: '📍'; font-size: 1.1em; }

.cta-row { display: flex; gap: var(--spacing-md); flex-wrap: wrap; margin-block: var(--spacing-lg); }
.btn-primary, .btn-secondary {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: var(--font-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base) ease;
  border: 2px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  color: white;
  box-shadow: 0 8px 24px color-mix(in oklab, var(--accent-purple), transparent 70%);
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  opacity: 0;
  transition: opacity var(--transition-base) ease;
}
.btn-primary:hover { transform: translateY(-4px); box-shadow: 0 12px 40px color-mix(in oklab, var(--accent-purple), transparent 60%); }
.btn-primary:hover::before { opacity: 1; }

.btn-secondary { background: transparent; color: var(--accent-purple); border-color: var(--accent-purple); }
.btn-secondary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  opacity: 0;
  transition: opacity var(--transition-base) ease;
}
.btn-secondary:hover { color: white; transform: translateY(-4px); box-shadow: 0 8px 24px color-mix(in oklab, var(--accent-purple), transparent 75%); }
.btn-secondary:hover::before { opacity: 1; }

.metrics-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  list-style: none;
  padding: 0;
  margin-block: var(--spacing-lg);
}
.metrics-strip li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base) ease;
}
.metrics-strip li::before {
  content: '';
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  inline-size: 100%;
  block-size: 3px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base) ease;
}
.metrics-strip li:hover { transform: translateY(-4px); border-color: var(--accent-purple); box-shadow: 0 8px 24px color-mix(in oklab, var(--accent-purple), transparent 85%); }
.metrics-strip li:hover::before { transform: scaleX(1); }
.metrics-strip li strong {
  display: block;
  font-size: var(--font-2xl);
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  margin-block-end: 0.25rem;
}
.metrics-strip li span { font-size: var(--font-sm); color: var(--muted); }

.featured-section { position: relative; padding-inline-start: var(--spacing-lg); }
.featured-section::before {
  content: '';
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  inline-size: 3px;
  block-size: 100%;
  background: linear-gradient(180deg, var(--accent-purple), var(--accent-cyan), var(--accent-pink));
  border-radius: 2px;
  animation: gradientSlide 3s ease-in-out infinite;
}

@keyframes gradientSlide {
  0%, 100% { opacity: 0.6; box-shadow: 0 0 20px var(--accent-purple); }
  50%      { opacity: 1; box-shadow: 0 0 30px var(--accent-cyan); }
}

.highlights-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  margin-block-end: var(--spacing-lg);
  position: relative;
  transition: all var(--transition-base) ease;
}
.highlights-card:hover { border-color: var(--accent-purple); box-shadow: 0 12px 40px color-mix(in oklab, var(--accent-purple), transparent 85%); transform: translateX(8px) translateY(-4px); }

.project-tagline { color: var(--muted); font-size: var(--font-base); margin-block: var(--spacing-sm); }

.project-list { list-style: none; padding: 0; display: grid; gap: var(--spacing-sm); }
.project-list li {
  position: relative;
  padding-inline-start: var(--spacing-lg);
  padding-block: var(--spacing-xs);
  transition: all var(--transition-fast) ease;
}
.project-list li::before {
  content: '▸';
  position: absolute;
  inset-inline-start: 0;
  color: var(--accent-cyan);
  font-weight: 900;
  font-size: var(--font-xl);
  transition: all var(--transition-fast) ease;
}
.project-list li:hover { padding-inline-start: calc(var(--spacing-lg) + 0.5rem); }
.project-list li:hover::before { color: var(--accent-purple); transform: scale(1.2); }

.snapshot-card {
  background: linear-gradient(135deg,
    color-mix(in oklab, var(--accent-blue), transparent 90%) 0%,
    color-mix(in oklab, var(--accent-purple), transparent 90%) 100%);
  border: 1px solid color-mix(in oklab, var(--accent-blue), transparent 70%);
}
.snapshot-card:hover { border-color: var(--accent-blue); box-shadow: 0 12px 40px color-mix(in oklab, var(--accent-blue), transparent 75%); }

@media (max-width: 820px) {
  .intro-section { padding: var(--spacing-lg); }
  .cta-row { flex-direction: column; }
  .btn-primary, .btn-secondary { inline-size: 100%; justify-content: center; }
  .featured-section::before { inset-inline-start: -1rem; }
  .highlights-card:hover { transform: translateX(4px) translateY(-4px); }
}

@media (max-width: 480px) {
  .intro-section { padding: var(--spacing-md); }
  .metrics-strip { grid-template-columns: 1fr; }
  .featured-section::before { display: none; }
  .featured-section { padding-inline-start: 0; }
}