:root {
  --white: #FFFFFF;
  --black: #000000;
  --gray: #999999;
  --gray-light: #E0E0E0;
  --font: 'Outfit', system-ui, sans-serif;
  --sidebar-width: 220px;
  --content-padding: clamp(1.5rem, 5vw, 4rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  background: var(--white);
  color: var(--black);
  font-family: var(--font);
  font-weight: 300;
  line-height: 1.7;
}

::selection {
  background: var(--black);
  color: var(--white);
}

/* ── Layout ── */
.layout { display: flex; min-height: 100vh; }

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2.5rem 1.75rem;
  z-index: 100;
  transition: transform 0.3s ease;
}

.site-title {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--black);
  text-decoration: none;
  display: block;
  cursor: pointer;
}

.sidebar-nav {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--gray);
  text-decoration: none;
  padding: 0.35rem 0;
  cursor: pointer;
  transition: color 0.2s ease;
  display: block;
}

.nav-link:hover { color: var(--black); }
.nav-link.active { color: var(--black); font-weight: 400; }

.nav-divider {
  width: 12px;
  height: 1px;
  background: var(--gray-light);
  margin: 0.75rem 0;
}

.sidebar-bottom {
  font-size: 0.65rem;
  color: var(--gray);
  font-weight: 300;
  letter-spacing: 0.02em;
}

/* ── Mobile ── */
.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  background: var(--white);
  padding: 1.25rem var(--content-padding);
  align-items: center;
  justify-content: space-between;
}

.mobile-header .site-title { font-size: 0.85rem; }

.hamburger {
  width: 22px; height: 14px;
  display: flex; flex-direction: column;
  justify-content: space-between;
  cursor: pointer; background: none; border: none;
}

.hamburger span {
  display: block; height: 1px; width: 100%;
  background: var(--black);
  transition: all 0.3s ease;
}

.overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(255,255,255,0.85); z-index: 90;
  backdrop-filter: blur(2px);
}

/* ── Main ── */
.main {
  margin-left: var(--sidebar-width);
  flex: 1; min-width: 0;
}

.content {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem var(--content-padding) 8rem;
}

/* ── Category Header ── */
.category-header {
  margin-bottom: 5rem;
}

.category-header h1 {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--black);
}

/* ── Entry Cards ── */
.entry-card {
  margin-bottom: 6rem;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp 0.6s ease forwards;
}

.entry-card:nth-child(2) { animation-delay: 0.05s; }
.entry-card:nth-child(3) { animation-delay: 0.12s; }
.entry-card:nth-child(4) { animation-delay: 0.19s; }
.entry-card:nth-child(5) { animation-delay: 0.26s; }
.entry-card:nth-child(6) { animation-delay: 0.33s; }
.entry-card:nth-child(7) { animation-delay: 0.40s; }

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

.entry-cover {
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.entry-cover img {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.5s ease;
}

.entry-card:hover .entry-cover img {
  opacity: 0.85;
}

.entry-card-meta {
  margin-top: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.entry-card-title {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--black);
  text-decoration: none;
}

.entry-card-date {
  font-size: 0.7rem;
  color: var(--gray);
  font-weight: 300;
  font-variant-numeric: tabular-nums;
}

/* ── Entry Detail ── */
.back-link {
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--gray);
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s;
  display: inline-block;
  margin-bottom: 4rem;
}

.back-link:hover { color: var(--black); }

.entry-header {
  margin-bottom: 4rem;
}

.entry-header h1 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.entry-header-meta {
  margin-top: 0.75rem;
  font-size: 0.72rem;
  color: var(--gray);
  display: flex;
  gap: 1.5rem;
  font-weight: 300;
}

/* ── Series content ── */
.series-image {
  margin-bottom: 4rem;
  line-height: 0;
  cursor: zoom-in;
}

.series-image img {
  width: 100%;
  height: auto;
  display: block;
}

.series-image figcaption {
  font-size: 0.7rem;
  color: var(--gray);
  margin-top: 0.75rem;
  line-height: 1.5;
  font-weight: 300;
}

.entry-body .series-text,
.entry-body p:not(.series-text p) {
  margin-bottom: 4rem;
  max-width: 520px;
}

.entry-body p {
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--black);
  font-weight: 300;
  margin-bottom: 1rem;
}

/* ── About ── */
.about-view { display: block; }

.about-content {
  max-width: 480px;
  padding-top: 1rem;
}

.about-content h1 {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 4rem;
}

.about-content p {
  font-size: 0.88rem;
  font-weight: 300;
  line-height: 1.9;
  color: var(--black);
  margin-bottom: 1.5rem;
}

.about-content .about-links {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.about-content .about-links a {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--gray);
  text-decoration: none;
  transition: color 0.2s;
}

.about-content .about-links a:hover { color: var(--black); }

/* ── Lightbox ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  cursor: zoom-out;
  opacity: 0;
  transition: opacity 0.3s ease;
  padding: clamp(2rem, 5vw, 5rem);
}

.lightbox.visible {
  display: flex;
  opacity: 1;
}

.lightbox-img-wrap {
  max-width: 100%;
  max-height: calc(100vh - 10rem);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-height: 0;
}

.lightbox-img-wrap img {
  max-width: 100%;
  max-height: calc(100vh - 10rem);
  object-fit: contain;
  display: block;
}

.lightbox-exif {
  margin-top: 1.25rem;
  display: flex;
  gap: 2rem;
  align-items: baseline;
  flex-shrink: 0;
}

.lightbox-exif span {
  font-family: var(--font);
  font-size: 0.7rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.05em;
}

.lightbox-caption {
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0.5rem;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.75rem;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.4);
  font-size: 1.25rem;
  cursor: pointer;
  font-family: var(--font);
  font-weight: 200;
  transition: color 0.2s;
  padding: 0.5rem;
  line-height: 1;
}

.lightbox-close:hover { color: rgba(255, 255, 255, 0.8); }

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.3);
  font-size: 1.5rem;
  cursor: pointer;
  font-family: var(--font);
  font-weight: 200;
  padding: 1rem;
  transition: color 0.2s;
  line-height: 1;
}

.lightbox-nav:hover { color: rgba(255, 255, 255, 0.7); }
.lightbox-nav.prev { left: 1rem; }
.lightbox-nav.next { right: 1rem; }

/* ── Responsive ── */
@media (max-width: 860px) {
  .sidebar {
    transform: translateX(-100%);
    background: var(--white);
  }
  .sidebar.open { transform: translateX(0); }
  .overlay.visible { display: block; }
  .mobile-header { display: flex; }
  .main { margin-left: 0; }
  .content { padding-top: 5rem; }

  .entry-card-meta {
    flex-direction: column;
    gap: 0.2rem;
  }
}