:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #5c5c5c;
  --color-accent: #1d4ed8;
  --color-border: #e5e5e5;
  --color-bg-alt: #f7f7f8;
  --max-width: 860px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #121212;
    --color-text: #f0f0f0;
    --color-muted: #a0a0a0;
    --color-accent: #6ea8fe;
    --color-border: #2a2a2a;
    --color-bg-alt: #1a1a1c;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 10;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  padding-bottom: 16px;
  max-width: 1400px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.logo {
  font-weight: 600;
  text-decoration: none;
  color: var(--color-text);
}

.nav-links a {
  margin-left: 20px;
  text-decoration: none;
  color: var(--color-muted);
  font-size: 0.95rem;
  white-space: nowrap;
}

.nav-links a.nav-cta {
  margin-left: 28px;
}

.nav-links a:hover { color: var(--color-accent); }

.nav-links a.nav-cta {
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  padding: 6px 14px;
  border-radius: 999px;
}

.hero {
  padding: 72px 0 64px;
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.hero-content {
  display: flex;
  align-items: center;
  gap: 48px;
  max-width: 1100px;
}

.hero-text {
  flex: 1 1 420px;
  min-width: 0;
}

.hero h1 {
  font-size: 3rem;
  margin: 0 0 16px;
}

.tagline {
  color: var(--color-muted);
  font-size: 1.15rem;
  max-width: 520px;
  margin: 0;
}

.hero-image {
  flex: 0 0 300px;
}

.hero-image img {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  border-radius: 16px;
  display: block;
  box-shadow: 0 12px 32px rgba(0,0,0,0.18);
}

@media (max-width: 760px) {
  .hero-content {
    flex-direction: column-reverse;
    text-align: center;
  }
  .hero h1 { font-size: 2.2rem; }
  .tagline { margin: 0 auto; }
  .hero-image { flex: 0 0 auto; width: 220px; }
  .hero-stats { justify-content: center; }
}

.spotlight-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.spotlight-strip img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  object-position: top center;
  display: block;
}

@media (max-width: 600px) {
  .spotlight-strip img { height: 260px; }
}

.about-layout {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.about-photo {
  width: 160px;
  height: 160px;
  border-radius: 12px;
  object-fit: cover;
  object-position: top center;
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .about-layout {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

.hero-cta {
  display: inline-block;
  margin-top: 8px;
}

.featured-cards { padding-top: 0; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.feature-card {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 20px;
  text-decoration: none;
  color: var(--color-text);
  background: var(--color-bg-alt);
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 32px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat strong {
  font-size: 1.8rem;
  color: var(--color-accent);
}

.stat span {
  color: var(--color-muted);
  font-size: 0.85rem;
}

.section {
  padding: 60px 0;
}

.section.alt {
  background: var(--color-bg-alt);
}

.section h2 {
  font-size: 1.6rem;
  margin-bottom: 24px;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.filter-btn {
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
}

.filter-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.card-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 18px 20px;
  background: var(--color-bg);
}

.card-title {
  font-weight: 600;
  margin: 0 0 4px;
}

.card-meta {
  color: var(--color-muted);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.card-desc {
  margin: 0;
  font-size: 0.95rem;
}

.card-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--color-accent);
}

.btn {
  display: inline-block;
  padding: 10px 22px;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.95rem;
}

.card-list.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.card-desc.score {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-accent);
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
  border-left: 2px solid var(--color-border);
  padding-left: 20px;
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -26px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}

.highlight-list {
  margin: 8px 0 0;
  padding-left: 18px;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.skills-groups {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.skill-group h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.85rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.gallery-item {
  margin: 0;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}

.gallery-item figcaption {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: 6px;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
}