/*
Theme Name: Nature Lens
Theme URI: https://example.com
Author: Hank
Description: A lean, classic (non-block) WordPress theme for nature and wildlife photography, with a full-bleed photo hero and a category-driven blog. Built with plain PHP templates — no Gutenberg block templates, no theme.json.
Version: 1.0
Requires PHP: 7.4
Text Domain: nature-lens
*/

/* ---------- Design tokens ---------- */
:root {
  --color-bg: #0e120f;
  --color-bg-alt: #161b17;
  --color-text: #ece8e1;
  --color-text-dim: #a9a79f;
  --color-accent: #c98a4b;   /* warm rust, echoes the bobcat coat */
  --color-accent-dim: #8a6238;
  --color-line: #2a302b;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max-width: 1200px;
  --radius: 2px;
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; height: auto; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-text); }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--color-text);
}
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Site header / nav ---------- */
.site-header-bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 10;
  padding: 28px 0;
}
.site-header-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-branding a {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--color-text);
}
.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
}
.primary-nav a {
  color: var(--color-text);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.site-hero {
  position: relative;
  height: 82vh;
  min-height: 480px;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center 30%;
  background-color: var(--color-bg);
}
.site-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14,18,15,0.15) 0%, rgba(14,18,15,0.15) 40%, rgba(14,18,15,0.92) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-bottom: 64px;
  width: 100%;
}
.hero-eyebrow {
  display: block;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 14px;
}
.hero-content h1 {
  font-size: clamp(38px, 6vw, 76px);
  max-width: 14ch;
  margin-bottom: 0.2em;
}
.hero-content p {
  color: var(--color-text-dim);
  max-width: 46ch;
  font-size: 18px;
}
.hero-caption {
  position: absolute;
  bottom: 16px;
  right: 32px;
  z-index: 2;
  font-size: 12px;
  color: var(--color-text-dim);
  letter-spacing: 0.04em;
}

/* Smaller hero for interior pages */
.site-hero.is-compact { height: 42vh; min-height: 280px; }

/* ---------- Section headings ---------- */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 96px 0 32px;
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 20px;
}
.section-head h2 { font-size: 28px; }
.section-head .view-all { font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase; }

/* ---------- Photo grid ---------- */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}
.photo-grid.two-col { grid-template-columns: repeat(2, 1fr); }
.photo-tile { position: relative; overflow: hidden; aspect-ratio: 4/5; background: var(--color-bg-alt); }
.photo-tile img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.photo-tile:hover img { transform: scale(1.05); }
.photo-tile .tile-caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 18px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.85));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.photo-tile:hover .tile-caption { opacity: 1; }
.tile-caption .cat { font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent); }
.tile-caption h3 { font-size: 17px; margin: 4px 0 0; }

/* ---------- Category split (Nature / Wildlife) ---------- */
.category-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 64px 0;
}
.category-split.four-up {
  grid-template-columns: repeat(4, 1fr);
}
.category-split.four-up .category-card {
  aspect-ratio: 3/4;
}
.category-card {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.category-card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.1), rgba(0,0,0,0.75));
}
.category-card .card-label {
  position: relative; z-index: 2; padding: 28px;
}
.category-card .card-label span { font-size: 12px; color: var(--color-text-dim); }
.category-card .card-label h3 { font-size: 26px; margin-top: 4px; }

/* ---------- Blog list ---------- */
.post-list { max-width: 760px; margin: 0 auto; }
.post-list-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--color-line);
}
.post-list-item .thumb { aspect-ratio: 4/3; overflow: hidden; }
.post-list-item .thumb img { width: 100%; height: 100%; object-fit: cover; }
.post-meta { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-dim); margin-bottom: 8px; }
.post-list-item h2 { font-size: 24px; }
.post-excerpt { color: var(--color-text-dim); font-size: 15px; }

/* ---------- Single post ---------- */
.single-post { max-width: 720px; margin: 0 auto; padding: 72px 0 96px; }
.single-post .post-title { font-size: clamp(30px, 4vw, 46px); }
.single-post .featured-media { margin: 32px 0 40px; }
.single-post .entry-content p { margin: 0 0 1.4em; }
.single-post .entry-content img { border-radius: var(--radius); margin: 1.6em 0; }
.single-post .entry-content h2 { margin-top: 1.8em; }
.post-tags { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--color-line); font-size: 13px; }

/* ---------- Page content ---------- */
.page-content { max-width: 720px; margin: 0 auto; padding: 72px 0 96px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-line);
  padding: 48px 0;
  margin-top: 96px;
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--color-text-dim);
}
.footer-social a { margin-left: 18px; color: var(--color-text-dim); }
.footer-social a:hover { color: var(--color-accent); }

/* ---------- Gallery grid page ---------- */
.gallery-count {
  color: var(--color-text-dim);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 24px;
}
.gallery-grid .photo-tile { cursor: zoom-in; }
.gallery-pagination {
  margin: 56px 0 96px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 14px;
}
.gallery-pagination .page-numbers {
  color: var(--color-text-dim);
  padding: 8px 12px;
  border: 1px solid var(--color-line);
}
.gallery-pagination .page-numbers.current {
  color: var(--color-bg);
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.gallery-pagination a.page-numbers:hover { color: var(--color-text); border-color: var(--color-accent); }

/* ---------- Lightbox ---------- */
body.nl-lightbox-locked { overflow: hidden; }
.nl-lightbox {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(6, 8, 6, 0.96);
  padding: 40px;
}
.nl-lightbox.is-open { display: flex; }
.nl-lightbox-figure {
  margin: 0;
  max-width: 90vw;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.nl-lightbox-img {
  max-width: 90vw;
  max-height: 78vh;
  width: auto;
  height: auto;
  object-fit: contain;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.nl-lightbox-caption {
  margin-top: 16px;
  color: var(--color-text-dim);
  font-size: 14px;
  text-align: center;
  max-width: 60ch;
}
.nl-lightbox-close,
.nl-lightbox-prev,
.nl-lightbox-next {
  position: fixed;
  background: transparent;
  border: none;
  color: var(--color-text);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  padding: 12px;
  opacity: 0.75;
  transition: opacity 0.2s ease;
}
.nl-lightbox-close:hover,
.nl-lightbox-prev:hover,
.nl-lightbox-next:hover { opacity: 1; color: var(--color-accent); }
.nl-lightbox-close { top: 20px; right: 24px; font-size: 34px; }
.nl-lightbox-prev { left: 12px; top: 50%; transform: translateY(-50%); font-size: 36px; }
.nl-lightbox-next { right: 12px; top: 50%; transform: translateY(-50%); font-size: 36px; }

@media (max-width: 600px) {
  .nl-lightbox { padding: 16px; }
  .nl-lightbox-prev, .nl-lightbox-next { font-size: 26px; padding: 8px; }
}

/* ---------- Classic [gallery] shortcode inside post content ---------- */
.entry-content .gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin: 1.8em 0;
  list-style: none;
  padding: 0;
}
.entry-content .gallery-item { margin: 0; }
.entry-content .gallery-icon a { display: block; aspect-ratio: 4/5; overflow: hidden; }
.entry-content .gallery-icon img {
  width: 100%; height: 100%; object-fit: cover; margin: 0; border-radius: 0;
}
.entry-content .gallery-caption {
  font-size: 12px;
  color: var(--color-text-dim);
  padding: 6px 2px 0;
}
.entry-content .gallery-columns-2 { grid-template-columns: repeat(2, 1fr); }
.entry-content .gallery-columns-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .category-split.four-up { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 780px) {
  .primary-nav { display: none; }
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .category-split { grid-template-columns: 1fr; }
  .category-split.four-up { grid-template-columns: 1fr; }
  .post-list-item { grid-template-columns: 1fr; }
}