/* === Layout: Page Sections, Grid, Responsive === */

/* --- Page Wrapper --- */
.page {
  padding-top: 64px; /* nav height */
}

/* --- Hero Section --- */
.hero {
  padding: var(--space-4xl) 0 var(--space-3xl);
  position: relative;
}

.hero-content {
  max-width: var(--content-width);
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--accent);
  margin-right: var(--space-md);
}

.hero-title {
  margin-bottom: var(--space-lg);
}

.hero-title .accent-word {
  color: var(--accent);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 58ch;
  margin-bottom: var(--space-xl);
}

.hero-subtitle .lang-en {
  display: block;
  margin-top: var(--space-sm);
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .hero {
    padding: var(--space-3xl) 0 var(--space-2xl);
  }

  .hero-subtitle {
    font-size: 1rem;
  }
}

/* --- Section --- */
.section {
  padding: var(--space-3xl) 0;
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.section-title {
  margin-bottom: 0;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 55ch;
  margin-top: var(--space-md);
}

/* --- Two Column --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

@media (max-width: 768px) {
  .two-col {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* --- Project Grid --- */
.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.about-text p {
  font-size: 1.0625rem;
  line-height: 1.75;
}

.about-text .lang-en {
  display: block;
  margin-top: var(--space-md);
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.about-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.meta-block-title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.explore-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.explore-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.explore-list li::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* --- Links Section --- */
.links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 640px) {
  .links-grid {
    grid-template-columns: 1fr;
  }
}

.links-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  text-decoration: none;
  transition: all var(--duration-normal) var(--ease-out-expo);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.links-card:hover {
  background: var(--bg-surface-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.links-card-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.links-card-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
}

.links-card-handle {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent);
}

/* --- Page Header (for sub-pages) --- */
.page-header {
  padding: var(--space-3xl) 0 var(--space-2xl);
}

.page-header-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-md);
}

.page-header-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 55ch;
}

/* --- Writing list --- */
.writing-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.writing-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-lg);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.writing-item-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
  min-width: 80px;
}

.writing-item-title {
  font-size: 1rem;
  color: var(--text-secondary);
}