.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Site Header */
.site-header {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
  background: rgba(10, 14, 23, 0.8);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: "Syne", sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
  transition: color var(--transition-fast);
}

.nav__logo:hover {
  color: var(--color-accent);
}

.nav__links {
  display: flex;
  gap: var(--space-xl);
}

.nav__links a {
  font-family: "Syne", sans-serif;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: color var(--transition-fast);
  position: relative;
}

.nav__links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-accent);
}

.nav__links a:hover::after,
.nav__links a.active::after {
  width: 100%;
}

/* Main */
.main {
  padding: var(--space-3xl) var(--space-lg);
  min-height: calc(100vh - 200px);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__inner p {
  color: var(--color-text-faint);
  font-size: 0.875rem;
}

.footer__links {
  display: flex;
  gap: var(--space-lg);
}

.footer__links a {
  color: var(--color-text-faint);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

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

/* Page Header */
.page-header {
  margin-bottom: var(--space-2xl);
}

.page-header__title {
  margin-bottom: var(--space-sm);
}

.page-header__subtitle {
  color: var(--color-text-muted);
  font-size: 1.125rem;
}

.page-header__clear {
  color: var(--color-accent);
  font-size: 0.875rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Post Grid - Asymmetric Editorial */
.post-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.post-grid .card--featured {
  grid-column: 1 / -1;
}

/* Project Grid */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

/* Section */
.section {
  margin-bottom: var(--space-3xl);
}

.section__title {
  margin-bottom: var(--space-xl);
  position: relative;
  display: inline-block;
}

.section__title::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* Hero */
.hero {
  padding: var(--space-3xl) 0;
  max-width: 700px;
}

.hero__title {
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--color-text), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Post Detail */
.post__header {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.post__date {
  display: block;
  color: var(--color-accent);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  margin-bottom: var(--space-sm);
}

.post__title {
  margin-bottom: var(--space-md);
}

.post__tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.post__meta {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  margin-bottom: var(--space-md);
}

.post__link {
  color: var(--color-accent);
  font-size: 0.875rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Error Page */
.error-page {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.error-page__code {
  font-size: clamp(4rem, 12vw, 8rem);
  font-family: "Syne", sans-serif;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--color-accent),
    var(--color-secondary)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-md);
}

.error-page__message {
  color: var(--color-text-muted);
  font-size: 1.25rem;
  margin-bottom: var(--space-xl);
}

.error-page__link {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Tag Filter */
.tag-filter {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

/* Empty State */
.empty-state {
  color: var(--color-text-faint);
  font-size: 1.125rem;
  text-align: center;
  padding: var(--space-3xl) 0;
}

/* Resume Layout */
.resume {
  max-width: 800px;
}

/* Responsive */
@media (max-width: 768px) {
  .post-grid {
    grid-template-columns: 1fr;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .nav__links {
    gap: var(--space-lg);
  }

  .hero {
    padding: var(--space-2xl) 0;
  }
}

@media (max-width: 480px) {
  .nav {
    flex-direction: column;
    gap: var(--space-md);
  }

  .nav__links {
    gap: var(--space-md);
  }
}