/* ─── Theme Variables ─────────────────────────── */
:root { --transition: 0.5s ease; }

[data-theme="light"] {
  --bg:         #ffffff;
  --surface:    #f0f0f0;
  --border:     rgba(0,0,0,0.10);
  --text:       #1a1814;
  --text-muted: #000000;
  --accent:     #4481B6;
  --tag-bg:     rgba(0,0,0,0.06);
}

[data-theme="dark"] {
  --bg:         #0e0d0b;
  --surface:    #161410;
  --border:     rgba(255,255,255,0.08);
  --text:       #e8e3da;
  --text-muted: #ffffff;
  --accent:     #4481B6;
  --tag-bg:     rgba(255,255,255,0.05);
}

/* ─── Reset & Base ────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Cormorant Garamond', Georgia, serif;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

/* Grain texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 999;
}

/* ─── Header ──────────────────────────────────── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 2.5rem;
  border-bottom: 1px solid var(--border);
  transition: border-color var(--transition);
}

.site-name {
  font-family: 'Space Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
}
.site-name span { color: var(--accent); }

.header-right { display: flex; align-items: center; gap: 1.8rem; }

.back-link {
  font-family: 'Space Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.back-link:hover { color: var(--text); }

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: border-color var(--transition), background 0.2s, color 0.2s;
}
.theme-toggle:hover { background: var(--tag-bg); color: var(--text); }

[data-theme="light"] .icon-moon { display: none; }
[data-theme="dark"]  .icon-sun  { display: none; }

/* ─── Section Label ───────────────────────────── */
.section-label {
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.section-label::after {
  content: '';
  display: block;
  width: 30px;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}

/* ─── Main ────────────────────────────────────── */
main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 3.5rem 2.5rem 5rem;
}

/* ─── Hero Photo ──────────────────────────────── */
.photo-hero {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 2px;
  margin-bottom: 2.2rem;
  opacity: 0;
  animation: fadeUp 0.9s 0.1s ease forwards;
}
.photo-hero img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 8s ease;
}
.photo-hero:hover img { transform: scale(1.02); }

.photo-overlay {
  position: absolute;
  inset: 0;
  background: var(--overlay);
  pointer-events: none;
  transition: background var(--transition);
}

.month-badge {
  position: absolute;
  top: 1.2rem;
  left: 1.2rem;
  background: var(--bg);
  color: var(--text);
  font-family: 'Space Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.35rem 0.75rem;
  border-radius: 1px;
  transition: background var(--transition), color var(--transition);
}

.exif-strip {
  position: absolute;
  bottom: 1.2rem;
  left: 1.2rem;
  display: flex;
  gap: 1.2rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.72);
}
[data-theme="light"] .exif-strip { color: rgba(255,255,255,0.72); }
.exif-item { display: flex; flex-direction: column; align-items: flex-start; gap: 0.1rem; }
.exif-label { opacity: 0.55; font-size: 0.5rem; text-transform: uppercase; letter-spacing: 0.15em; }

/* ─── Meta Row ────────────────────────────────── */
.meta-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2.4rem;
  opacity: 0;
  animation: fadeUp 0.9s 0.25s ease forwards;
}

.photo-title {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}
.photo-title em { font-style: italic; color: var(--text-muted); }

.photo-date {
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
}

.meta-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.6rem;
  flex-shrink: 0;
}

.tags { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.4rem; }
.tag {
  font-family: 'Space Mono', monospace;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--tag-bg);
  color: var(--text-muted);
  padding: 0.25rem 0.6rem;
  border-radius: 1px;
  transition: background var(--transition);
}

/* ─── Divider ─────────────────────────────────── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin-bottom: 2.4rem;
  transition: background var(--transition);
}

/* ─── Content Grid ────────────────────────────── */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 4rem;
  opacity: 0;
  animation: fadeUp 0.9s 0.4s ease forwards;
}

/* Article */
.article-body p {
  font-size: 1.2rem;
  line-height: 1.82;
  color: var(--text);
  margin-bottom: 1.4rem;
  font-weight: 300;
}
.article-body p:first-child::first-letter {
  font-size: 3.5rem;
  float: left;
  line-height: 0.85;
  margin-right: 0.12em;
  font-style: italic;
  color: var(--accent);
}

/* Sidebar */
.sidebar-block { margin-bottom: 2.4rem; }
.sidebar-block .section-label { margin-bottom: 1rem; }

.gear-list { list-style: none; }
.gear-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  font-weight: 300;
  transition: border-color var(--transition);
}
.gear-list li:last-child { border-bottom: none; }
.gear-key {
  font-family: 'Space Mono', monospace;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}
.gear-val { font-style: italic; }

.location-block {
  background: var(--surface);
  padding: 1.1rem 1.3rem;
  border-radius: 2px;
  transition: background var(--transition);
}
.location-name { font-size: 1.05rem; font-weight: 300; margin-bottom: 0.2rem; }
.location-detail {
  font-family: 'Space Mono', monospace;
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

/* ─── Navigation Prev/Next ────────────────────── */
.photo-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 3rem;
  margin-top: 3rem;
  border-top: 1px solid var(--border);
  opacity: 0;
  animation: fadeUp 0.9s 0.55s ease forwards;
  transition: border-color var(--transition);
}
.nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  text-decoration: none;
  color: var(--text);
}
.nav-link.next { align-items: flex-end; }
.nav-dir {
  font-family: 'Space Mono', monospace;
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.nav-title {
  font-size: 1rem;
  font-weight: 300;
  font-style: italic;
  transition: color 0.2s;
}
.nav-link:hover .nav-title { color: var(--accent); }

/* ─── Animations ──────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Footer ──────────────────────────────────── */
footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  font-family: 'Space Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
  transition: border-color var(--transition);
}

/* ─── Responsive ──────────────────────────────── */
@media (max-width: 720px) {
  header { padding: 1.2rem 1.4rem; }
  main { padding: 2.4rem 1.4rem 4rem; }
  .content-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .meta-row { flex-direction: column; gap: 1rem; }
  .meta-right { align-items: flex-start; }
  .tags { justify-content: flex-start; }
  .exif-strip { display: none; }
}