/*
Theme Name: SK-photo-gallery
Theme URI: https://example.com/meridian
Author: Your Studio
Author URI: https://example.com
Description: A dark, minimal, photo-first WordPress theme for photography portfolios. Built around named photo galleries, a full-screen hero slideshow homepage, a flat galleries overview grid, and a fullscreen photo viewer.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: LICENSE
Text Domain: meridian
*/

:root{
  --bg: #14120f;
  --bg-raised: #1c1a16;
  --ink: #ece6da;
  --ink-dim: #948d7d;
  --accent: #c79a3b;
  --accent-dim: #7a6329;
  --rule: #2c2924;
  --radius: 2px;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ -webkit-user-drag:none; user-select:none; }
a{ color: inherit; }

h1, h2, h3, .display{
  font-family: 'Fraunces', serif;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.mono{ font-family:'IBM Plex Mono', monospace; letter-spacing: 0.04em; }
.screen-reader-text{ position:absolute !important; left:-9999px; }

/* ---------- NAV ---------- */
header.site-nav{
  position: fixed; top:0; left:0; right:0; z-index: 500;
  display:flex; align-items:center; justify-content:space-between;
  padding: 28px 40px;
  transition: background .4s ease, padding .4s ease;
}
header.site-nav.solid{
  background: rgba(20,18,15,0.92);
  backdrop-filter: blur(6px);
  padding: 18px 40px;
  border-bottom: 1px solid var(--rule);
}
.wordmark{
  font-family:'Fraunces', serif; font-style: italic; font-weight: 500;
  font-size: 1.3rem; letter-spacing: 0.02em; color: var(--ink);
  text-decoration:none; display:flex; align-items:center; gap:10px;
}
.wordmark img{ max-height: 34px; width:auto; display:block; }
.links{ display:flex; gap: 34px; list-style:none; }
.links li{ list-style:none; }
.links a{
  color: var(--ink-dim); text-decoration:none; font-size: 0.78rem;
  letter-spacing: 0.14em; text-transform: uppercase;
  font-family: 'IBM Plex Mono', monospace;
  padding-bottom: 4px; border-bottom: 1px solid transparent;
  transition: color .25s ease, border-color .25s ease;
}
.links a:hover, .links li.current-menu-item > a{ color: var(--accent); border-color: var(--accent-dim); }

/* ---------- HERO ---------- */
.hero{
  position: relative; width: 100%; height: 95vh; overflow: hidden; background:#000;
}
.hero-slide{
  position:absolute; inset:0; opacity:0; transition: opacity 1.6s ease;
  display:block; text-decoration:none; color:inherit; cursor:pointer;
  pointer-events:none;
}
.hero-slide.active{ opacity: 1; pointer-events:auto; }
.hero-slide img{
  width:100%; height:100%; object-fit: cover; filter: brightness(0.72) saturate(0.95);
}
.hero-overlay{
  position:absolute; inset:0;
  background: linear-gradient(to top, rgba(10,9,7,0.85) 0%, rgba(10,9,7,0.05) 45%, rgba(10,9,7,0.35) 100%);
  display:flex; flex-direction:column; justify-content:flex-end;
  padding: 60px;
  pointer-events:none;
}
.hero-caption{
  font-family:'IBM Plex Mono', monospace; font-size: 0.72rem; letter-spacing:0.12em;
  color: var(--ink-dim); text-transform:uppercase; margin-bottom: 10px;
}
.hero-title{
  font-size: clamp(2.2rem, 6vw, 4.6rem); font-style: italic; font-weight: 500;
  max-width: 14ch; line-height: 1.05; color: var(--ink);
}
.hero-index{
  position:absolute; top: 100px; right: 44px; font-size: 0.75rem; color: var(--ink-dim);
  z-index: 5;
}
.hero-empty{
  display:flex; align-items:center; justify-content:center; height:100%;
  color: var(--ink-dim); font-family:'IBM Plex Mono', monospace; font-size:0.85rem; text-align:center; padding: 40px;
}

.below-fold{
  padding: 120px 40px 100px; max-width: 720px; margin: 0 auto; text-align:center;
}
.below-fold p{
  color: var(--ink-dim); font-size: 1.02rem; line-height: 1.8; font-weight:300;
}
.below-fold .links-row{
  margin-top: 34px; display:flex; gap: 26px; justify-content:center; flex-wrap: wrap;
}
.btn-ghost{
  font-family:'IBM Plex Mono', monospace; font-size: 0.75rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ink); text-decoration:none;
  border: 1px solid var(--rule); padding: 13px 26px; border-radius: var(--radius);
  transition: border-color .25s ease, color .25s ease; display:inline-block;
}
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); }

/* ---------- GALLERIES OVERVIEW ---------- */
.page-head{
  padding: 160px 40px 50px; max-width: 1400px; margin: 0 auto;
}
.page-head h1{ font-size: clamp(1.8rem, 3.6vw, 2.8rem); font-style: italic; }
.page-head .eyebrow{
  display:block; color: var(--accent); font-family:'IBM Plex Mono', monospace;
  font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 14px;
}

.gallery-grid{
  max-width: 1400px; margin: 0 auto; padding: 0 40px 140px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px;
}
.gallery-tile{
  position: relative; overflow:hidden;
  border-radius: var(--radius); background: var(--bg-raised);
  aspect-ratio: 1 / 1; display:block; text-decoration:none;
}
.mosaic{
  position:absolute; inset:0; display:grid; grid-template-columns:1fr 1fr; grid-template-rows:1fr 1fr; gap:2px;
}
.mosaic img{
  width:100%; height:100%; object-fit:cover; display:block;
  filter: brightness(0.75); transition: filter .4s ease, transform .6s ease;
}
.gallery-tile:hover .mosaic img{ filter: brightness(0.5); transform: scale(1.04); }
.tile-frame-no{
  position:absolute; top: 16px; left: 16px; z-index:3;
  font-size: 0.7rem; color: var(--ink); background: rgba(10,9,7,0.55);
  padding: 3px 8px; border-radius: var(--radius);
}
.tile-label{
  position:absolute; left:0; right:0; bottom:0; z-index:3;
  padding: 22px 20px; display:flex; align-items:flex-end; justify-content:space-between;
  background: linear-gradient(to top, rgba(10,9,7,0.88), transparent);
}
.tile-label h3{ font-style: italic; font-size: 1.25rem; font-weight:500; }
.tile-label .count{ color: var(--ink-dim); font-size: 0.72rem; }
.galleries-empty{ max-width:1400px; margin:0 auto; padding: 0 40px 140px; color: var(--ink-dim); }

/* ---------- GALLERY DETAIL ---------- */
.gallery-desc{
  max-width: 640px; color: var(--ink-dim); line-height: 1.8; font-size: 1rem; margin-top: 6px;
}
.photo-stack{ max-width: 1400px; margin: 0 auto; padding: 0 0 140px; }
.stack-photo{ position:relative; width:100%; cursor: zoom-in; margin-bottom: 220px; border:0; background:none; display:block; padding:0; }
.stack-photo:last-child{ margin-bottom: 0; }
.stack-photo img{
  width:100%; display:block; height:auto; filter: brightness(0.9);
  transition: filter .3s ease;
}
.stack-photo:hover img{ filter: brightness(1); }
.stack-caption{
  position:absolute; left: 24px; bottom: 20px;
  font-family:'IBM Plex Mono', monospace; font-size: 0.7rem; letter-spacing:0.06em;
  color: var(--ink); background: rgba(10,9,7,0.55); padding: 5px 10px; border-radius: var(--radius);
}

/* ---------- ABOUT / TEXT PAGE ---------- */
.about-wrap{
  max-width: 640px; margin: 0 auto; padding: 200px 40px 160px;
}
.about-wrap .eyebrow{
  display:block; color: var(--accent); font-family:'IBM Plex Mono', monospace;
  font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 20px;
}
.about-wrap h1{ font-size: clamp(1.8rem,4vw,2.6rem); font-style:italic; margin-bottom: 30px; }
.about-wrap .about-content p{ color: var(--ink-dim); line-height: 1.9; font-size: 1.02rem; margin-bottom: 20px; }
.about-wrap .about-content strong{ color: var(--ink); font-weight: 500; }

/* ---------- FOOTER ---------- */
footer.site-footer{
  border-top: 1px solid var(--rule); padding: 30px 40px;
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:10px;
  font-family:'IBM Plex Mono', monospace; font-size: 0.7rem; color: var(--ink-dim);
}

/* ---------- FULLSCREEN VIEWER ---------- */
#viewer{
  position: fixed; inset:0; z-index: 1000; background: #000;
  display:none; align-items:center; justify-content:center;
  user-select:none;
}
#viewer.open{ display:flex; }
#viewer .viewer-img-wrap{
  width:100%; height:100%; display:flex; align-items:center; justify-content:center;
}
#viewer img{
  max-width: 92vw; max-height: 86vh; object-fit: contain;
  opacity:0; transition: opacity .35s ease;
}
#viewer img.shown{ opacity:1; }
.viewer-close{
  position:absolute; top: 26px; right: 34px; z-index: 10;
  background:none; border:none; color: var(--ink); font-size: 1.6rem; cursor:pointer;
  font-family:'IBM Plex Mono', monospace; line-height:1;
}
.viewer-counter{
  position:absolute; top: 30px; left: 34px; z-index:10;
  font-family:'IBM Plex Mono', monospace; font-size: 0.8rem; color: var(--ink-dim);
}
.viewer-arrow{
  position:absolute; top:50%; transform: translateY(-50%); z-index:10;
  background: none; border:none; color: var(--ink); font-size: 2rem; cursor:pointer;
  padding: 14px 18px; opacity: 0.6; transition: opacity .2s ease;
  font-family:'Fraunces', serif;
}
.viewer-arrow:hover{ opacity: 1; color: var(--accent); }
.viewer-arrow.prev{ left: 8px; }
.viewer-arrow.next{ right: 8px; }
.viewer-caption{
  position:absolute; bottom: 34px; left:0; right:0; text-align:center; z-index:10;
  font-family:'IBM Plex Mono', monospace; font-size: 0.78rem; color: var(--ink-dim);
  padding: 0 80px;
}

@media (max-width: 860px){
  .gallery-grid{ grid-template-columns: repeat(2,1fr); gap: 18px; padding: 0 20px 100px;}
  header.site-nav{ padding: 20px; }
  .links{ gap: 18px; }
  .page-head{ padding: 130px 20px 34px; }
  .about-wrap{ padding: 150px 20px 100px; }
  .viewer-arrow{ font-size: 1.4rem; padding: 10px; }
  .viewer-caption{ padding: 0 50px; }
  .hero-index{ top: 80px; right: 20px; }
  .stack-photo{ margin-bottom: 100px; }
}
@media (max-width: 560px){
  .gallery-grid{ grid-template-columns: 1fr; }
  .links{ gap: 12px; }
  .links a{ font-size: 0.68rem; }
}

:focus-visible{ outline: 2px solid var(--accent); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}