/* ============================================================
   Joshua Hearn Photography — Main Stylesheet
   Hosted on Neocities · Pure CSS + Vanilla JS
   ============================================================ */

/* — Reset — */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

/* — Custom Properties — */
:root {
  --clr-bg:         #242424;
  --clr-bg-2:       #1a1a1a;
  --clr-bg-3:       #2e2e2e;
  --clr-surface:    #2e2e2e;
  --clr-surface-2:  #383838;
  --clr-text:       #e8e8e8;
  --clr-text-muted: #888;
  --clr-text-faint: #484848;
  --clr-accent:     #c9a84c;
  --clr-accent-alt: #ddbf6f;
  --clr-border:     rgba(255,255,255,0.07);

  --clr-r: #ff3a3a;
  --clr-g: #2ecc71;
  --clr-b: #3a9fff;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', 'Helvetica Neue', Arial, sans-serif;

  --nav-h:    5rem;
  --max-w:    1440px;
  --gap:      10px;

  --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast:   150ms ease;
  --t-mid:    300ms ease;
  --t-slow:   600ms var(--ease-out);
}

/* Trichrome page overrides */
body.tri-page {
  --clr-bg:       #050505;
  --clr-bg-2:     #000;
  --clr-bg-3:     #0d0d0d;
  --clr-surface:  #0b0b0b;
  --clr-surface-2:#121212;
  --clr-text:     #f0f0f0;
  --clr-text-muted:#6a6a6a;
  --clr-accent:   var(--clr-r);
  --clr-border:   rgba(255,255,255,0.05);
}

/* — Base — */
body {
  font-family: var(--font-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--t-slow), color var(--t-slow);
}

main { padding-top: var(--nav-h); }

.container {
  width: min(var(--max-w), 100%);
  margin: 0 auto;
  padding: 0 2rem;
}

.section       { padding: 6rem 0; }
.section-sm    { padding: 3rem 0; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* — Typography — */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: 0.02em;
}
h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
p  { color: var(--clr-text-muted); line-height: 1.75; }

.label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--clr-accent);
  display: block;
}

/* — Scroll Progress Bar — */
.scroll-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--clr-accent);
  transform-origin: left;
  transform: scaleX(0);
  z-index: 200;
  animation: grow-bar linear;
  animation-timeline: scroll(root);
}
@keyframes grow-bar { to { transform: scaleX(1); } }

/* — Page Transition Overlay — */
#pg-overlay {
  position: fixed; inset: 0;
  background: #000;
  z-index: 999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.45s ease;
}
#pg-overlay.on { opacity: 1; }

/* — Navigation — */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0 2rem;
  background: rgba(36,36,36,0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--t-slow), border-color var(--t-slow);
}

body.tri-page .site-nav {
  background: rgba(5,5,5,0.95);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
}

.nav-logo { display: flex; align-items: center; }
.nav-logo-img { height: 3rem; width: auto; display: block; }

.nav-links { display: flex; align-items: center; gap: 0.15rem; }

.nav-link {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  padding: 0.45rem 0.7rem;
  border-radius: 4px;
  transition: color var(--t-fast), background var(--t-fast);
}
.nav-link:hover { color: var(--clr-text); background: var(--clr-border); }
.nav-link.active { color: var(--clr-accent); }

/* RGB animated Trichromes link */
.nav-link.tri-link { transition: color var(--t-fast), background var(--t-fast), -webkit-text-fill-color var(--t-fast); }

body.tri-page .nav-link.tri-link {
  background: linear-gradient(90deg, var(--clr-r), var(--clr-g), var(--clr-b));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: rgb-shift 4s linear infinite;
}

/* Mobile nav */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}
.nav-toggle span {
  display: block; width: 22px; height: 1.5px;
  background: var(--clr-text-muted);
  transition: transform var(--t-mid), opacity var(--t-mid);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* — Hero (Homepage) — */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--clr-bg-2) 0%, var(--clr-bg-3) 100%);
}

.hero-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-grad {
  position: absolute; inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 25%,
    rgba(0,0,0,0.2) 55%,
    rgba(0,0,0,0.85) 100%
  );
}

.hero-content {
  position: relative; z-index: 1;
  padding: 4rem 2rem;
  width: min(var(--max-w), 100%);
  margin: 0 auto;
}

.hero-eyebrow {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--clr-accent);
  display: block;
  margin-bottom: 1rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 7.5rem);
  font-weight: 300;
  color: #fff;
  line-height: 0.95;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}

.hero-sub {
  font-size: 1rem;
  font-weight: 300;
  color: rgba(255,255,255,0.5);
  max-width: 380px;
  line-height: 1.65;
  margin-bottom: 2.5rem;
}

.hero-scroll {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
}
.hero-scroll-line {
  display: block; width: 40px; height: 1px;
  background: rgba(255,255,255,0.25);
}

/* — Section Headers — */
.section-header { margin-bottom: 3rem; }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--clr-text);
  margin-top: 0.5rem;
}

/* — Gallery Masonry — */
.gallery-masonry {
  columns: 3 260px;
  column-gap: var(--gap);
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--gap);
  cursor: pointer;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.g-inner {
  position: relative;
  overflow: hidden;
  background: var(--clr-surface);
  /* Ensures item visible even before image loads */
  min-height: 120px;
}

.g-inner img {
  width: 100%; height: auto;
  display: block;
  transition: transform 0.55s var(--ease-out);
}
.gallery-item:hover .g-inner img { transform: scale(1.04); }

.g-overlay {
  position: absolute; inset: 0;
  background: transparent;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 0.75rem;
  transition: background var(--t-mid);
}
.gallery-item:hover .g-overlay { background: rgba(0,0,0,0.22); }

.g-expand {
  width: 34px; height: 34px;
  background: rgba(255,255,255,0.88);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #111;
  font-size: 1rem;
  opacity: 0;
  transform: scale(0.75);
  transition: opacity var(--t-mid), transform var(--t-mid);
}
.gallery-item:hover .g-expand { opacity: 1; transform: scale(1); }

.g-caption {
  padding: 0.55rem 0.2rem 0.25rem;
  font-size: 0.72rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.05em;
}

/* — Trichrome Gallery Items — */
.tri-item .g-overlay {
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
}

.tri-ch-overlay {
  display: flex;
  gap: 0.35rem;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity var(--t-mid), transform var(--t-mid);
}
.tri-item:hover .tri-ch-overlay { opacity: 1; transform: translateY(0); }

.ch-btn {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: 2px;
  border: 1px solid;
  transition: filter var(--t-fast), background var(--t-fast);
  line-height: 1.5;
}
.ch-r { border-color: var(--clr-r); color: var(--clr-r); background: rgba(255,58,58,0.1); }
.ch-g { border-color: var(--clr-g); color: var(--clr-g); background: rgba(46,204,113,0.1); }
.ch-b { border-color: var(--clr-b); color: var(--clr-b); background: rgba(58,159,255,0.1); }
.ch-btn:hover, .ch-btn.active { filter: brightness(1.4); }

/* SVG channel filter classes */
.filter-r { filter: url(#tri-filter-r); }
.filter-g { filter: url(#tri-filter-g); }
.filter-b { filter: url(#tri-filter-b); }

/* — Trichrome Page Hero — */
.tri-hero {
  position: relative;
  padding: 7rem 0 5rem;
  text-align: center;
  overflow: hidden;
}

.tri-hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(255,58,58,0.06) 0%, transparent 65%),
    radial-gradient(ellipse at 80% 0%, rgba(58,159,255,0.06) 0%, transparent 65%),
    radial-gradient(ellipse at 50% 100%, rgba(46,204,113,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.tri-title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 9rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  line-height: 1;
  margin-bottom: 1.75rem;
  background: linear-gradient(90deg, var(--clr-r), var(--clr-g), var(--clr-b), var(--clr-r));
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: rgb-shift 6s linear infinite;
}

.tri-hero-desc {
  max-width: 580px;
  margin: 0 auto 1.5rem;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(240,240,240,0.45);
}

.tri-hero-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  color: rgba(240,240,240,0.25);
}

/* — Channel Switcher Bar — */
.ch-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1.25rem 2rem;
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  position: sticky;
  top: var(--nav-h);
  z-index: 50;
  backdrop-filter: blur(8px);
  flex-wrap: wrap;
}

.ch-bar-label {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-right: 0.25rem;
}

.ch-bar-btn {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.45rem 1.1rem;
  border-radius: 100px;
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  transition: all var(--t-fast);
}
.ch-bar-btn:hover { color: var(--clr-text); border-color: rgba(255,255,255,0.2); background: var(--clr-surface-2); }
.ch-bar-btn.active { color: #fff; }
.ch-bar-btn[data-ch="all"].active  { border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.09); }
.ch-bar-btn[data-ch="r"].active    { border-color: var(--clr-r); background: rgba(255,58,58,0.15); color: var(--clr-r); box-shadow: 0 0 14px rgba(255,58,58,0.2); }
.ch-bar-btn[data-ch="g"].active    { border-color: var(--clr-g); background: rgba(46,204,113,0.15); color: var(--clr-g); box-shadow: 0 0 14px rgba(46,204,113,0.2); }
.ch-bar-btn[data-ch="b"].active    { border-color: var(--clr-b); background: rgba(58,159,255,0.15); color: var(--clr-b); box-shadow: 0 0 14px rgba(58,159,255,0.2); }

/* — Lightbox — */
#lightbox {
  position: fixed; inset: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-mid);
}
#lightbox.open { opacity: 1; pointer-events: all; }

.lb-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.97);
  cursor: pointer;
}

.lb-inner {
  position: relative; z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  max-width: min(92vw, 1200px);
  max-height: 90vh;
}

.lb-img {
  max-width: 100%;
  max-height: 78vh;
  object-fit: contain;
  display: block;
  transition: filter 0.3s ease;
}
.lb-img.filter-r { filter: url(#tri-filter-r); }
.lb-img.filter-g { filter: url(#tri-filter-g); }
.lb-img.filter-b { filter: url(#tri-filter-b); }

.lb-caption {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.35);
  text-align: center;
}

.lb-channels {
  display: none;
  gap: 0.5rem;
}
.lb-channels.show { display: flex; }

.lb-ch-btn {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  transition: all var(--t-fast);
}
.lb-ch-btn:hover { color: var(--clr-text); }
.lb-ch-btn[data-ch="all"].active  { border-color: rgba(255,255,255,0.35); color: #fff; background: rgba(255,255,255,0.09); }
.lb-ch-btn[data-ch="r"].active    { border-color: var(--clr-r); color: var(--clr-r); background: rgba(255,58,58,0.15); }
.lb-ch-btn[data-ch="g"].active    { border-color: var(--clr-g); color: var(--clr-g); background: rgba(46,204,113,0.15); }
.lb-ch-btn[data-ch="b"].active    { border-color: var(--clr-b); color: var(--clr-b); background: rgba(58,159,255,0.15); }

.lb-close, .lb-prev, .lb-next {
  position: fixed;
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 50%;
  color: rgba(255,255,255,0.65);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--t-fast);
  z-index: 2;
  font-size: 1.2rem;
  cursor: pointer;
}
.lb-close:hover, .lb-prev:hover, .lb-next:hover { background: rgba(255,255,255,0.18); color: #fff; }
.lb-close { top: 1.25rem; right: 1.25rem; }
.lb-prev  { left: 1.25rem; top: 50%; transform: translateY(-50%); }
.lb-next  { right: 1.25rem; top: 50%; transform: translateY(-50%); }

/* Keyboard hint */
.lb-hint {
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.2);
  text-align: center;
}

/* — Homepage Category Cards — */
.cats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--clr-border);
  border: 1px solid var(--clr-border);
}

.cat-card {
  position: relative;
  aspect-ratio: 2/3;
  overflow: hidden;
  display: block;
  background: var(--clr-surface);
}

.cat-card-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease-out);
}
.cat-card:hover .cat-card-img { transform: scale(1.06); }

.cat-grad {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.08) 55%, transparent 100%);
  transition: background var(--t-mid);
}
.cat-card:hover .cat-grad { background: linear-gradient(to top, rgba(0,0,0,0.92) 0%, rgba(0,0,0,0.25) 55%, rgba(0,0,0,0.05) 100%); }

.cat-content {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1.75rem;
}

.cat-label { margin-bottom: 0.4rem; }

/* Trichromes card: RGB gradient label */
.cat-card.tri-card .cat-label {
  background: linear-gradient(90deg, var(--clr-r), var(--clr-g), var(--clr-b));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.cat-name {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 300;
  color: #fff;
  display: block;
  margin-bottom: 0.3rem;
}
.cat-count { font-size: 0.78rem; color: rgba(255,255,255,0.38); }

.cat-arrow {
  position: absolute;
  top: 1.25rem; right: 1.25rem;
  width: 34px; height: 34px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.45);
  font-size: 0.8rem;
  transition: all var(--t-mid);
}
.cat-card:hover .cat-arrow {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: rgba(255,255,255,0.45);
  transform: translate(2px, -2px);
}

/* Placeholder for missing category images */
.cat-placeholder {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  gap: 0.75rem;
  color: var(--clr-text-faint);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

/* — About Page — */
.about-wrap {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 6rem;
  align-items: start;
  padding: 5rem 0;
}

.about-sticky {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
}

.about-portrait {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: 2px;
}

.about-portrait-placeholder {
  width: 100%; aspect-ratio: 4/5;
  background: var(--clr-surface);
  border-radius: 2px;
  display: flex; align-items: center; justify-content: center;
  color: var(--clr-text-faint);
  font-size: 0.82rem;
}

.about-body h1 { margin-bottom: 0.5rem; }

.about-lead {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--clr-text);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.about-body p { margin-bottom: 1.4rem; }

.about-hr {
  border: none;
  border-top: 1px solid var(--clr-border);
  margin: 2.5rem 0;
}

.about-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.meta-item { display: flex; flex-direction: column; gap: 0.2rem; }
.meta-key { font-size: 0.68rem; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase; color: var(--clr-accent); }
.meta-val { font-family: var(--font-display); font-size: 1.05rem; color: var(--clr-text); }

/* — Contact Page — */
.contact-wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 5rem 0;
}

.contact-form { display: flex; flex-direction: column; gap: 1.4rem; }

.form-group { display: flex; flex-direction: column; gap: 0.45rem; }

.form-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}

.form-input, .form-textarea {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 2px;
  outline: none;
  width: 100%;
  transition: border-color var(--t-fast);
}
.form-input:focus, .form-textarea:focus { border-color: var(--clr-accent); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--clr-text-faint); }
.form-textarea { min-height: 140px; resize: vertical; }

.form-submit {
  align-self: flex-start;
  background: var(--clr-accent);
  color: #111;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.85rem 2.5rem;
  border-radius: 2px;
  transition: background var(--t-fast), transform var(--t-fast);
}
.form-submit:hover { background: var(--clr-accent-alt); transform: translateY(-1px); }

.contact-alt {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.contact-alt-row {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* — Blog / Field Notes — */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.75rem;
}

.blog-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 2px;
  overflow: hidden;
  transition: transform var(--t-mid);
  display: block;
}
.blog-card:hover { transform: translateY(-4px); }

.blog-card-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--clr-surface-2);
}
.blog-card-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.blog-card:hover .blog-card-thumb img { transform: scale(1.04); }

.blog-card-body { padding: 1.4rem; }
.blog-card-date { font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--clr-accent); margin-bottom: 0.5rem; display: block; }
.blog-card-title { font-family: var(--font-display); font-size: 1.35rem; font-weight: 400; color: var(--clr-text); margin-bottom: 0.65rem; line-height: 1.3; }
.blog-card-excerpt {
  font-size: 0.85rem; line-height: 1.7; color: var(--clr-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Article */
.article-hero { padding: 5rem 0 2.5rem; max-width: 800px; margin: 0 auto; }
.article-title { font-family: var(--font-display); font-weight: 300; margin-bottom: 1rem; }
.article-meta { font-size: 0.78rem; color: var(--clr-text-muted); letter-spacing: 0.08em; }
.article-hero-img { width: 100%; border-radius: 2px; margin: 2rem 0; aspect-ratio: 16/9; object-fit: cover; }
.article-body { max-width: 680px; margin: 0 auto; padding-bottom: 6rem; }
.article-body p { margin-bottom: 1.5rem; font-size: 1.05rem; line-height: 1.85; }
.article-body h2 { font-family: var(--font-display); font-size: 1.75rem; font-weight: 300; color: var(--clr-text); margin: 2.5rem 0 1rem; }
.article-body img { width: 100%; border-radius: 2px; margin: 2rem 0; }
.article-body blockquote {
  border-left: 2px solid var(--clr-accent);
  padding: 0.5rem 0 0.5rem 1.5rem;
  margin: 2rem 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--clr-text);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-bottom: 2rem;
  transition: color var(--t-fast);
}
.back-link:hover { color: var(--clr-text); }

/* — Footer — */
.site-footer {
  background: var(--clr-bg-2);
  border-top: 1px solid var(--clr-border);
  padding: 2.5rem 0 2rem;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}
.footer-nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer-nav a {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-text-faint);
  transition: color var(--t-fast);
}
.footer-nav a:hover { color: var(--clr-text-muted); }
.footer-copy { font-size: 0.72rem; color: var(--clr-text-faint); }

/* — Scroll Reveal — */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }

.stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger.in > *:nth-child(1) { transition-delay: 0ms; }
.stagger.in > *:nth-child(2) { transition-delay: 80ms; }
.stagger.in > *:nth-child(3) { transition-delay: 160ms; }
.stagger.in > *:nth-child(4) { transition-delay: 240ms; }
.stagger.in > * { opacity: 1; transform: translateY(0); }

/* — Animations — */
@keyframes rgb-shift {
  0%   { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* — Responsive — */
@media (max-width: 1024px) {
  .gallery-masonry { columns: 2 220px; }
  .about-wrap { grid-template-columns: 1fr; gap: 3rem; }
  .about-sticky { position: static; max-width: 420px; }
  .cats-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --nav-h: 4rem; }
  .nav-logo-img { height: 2.25rem; }

  /* backdrop-filter creates a fixed-position containing block, trapping the
     mobile overlay inside the 64px nav bar. Remove it on mobile and use a
     solid background instead — visually identical on small screens. */
  .site-nav {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--clr-bg-2);
  }
  body.tri-page .site-nav {
    background: #000;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h); left: 0; right: 0; bottom: 0;
    background: var(--clr-bg-2);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 3rem;
    gap: 0.25rem;
    overflow-y: auto;
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-link { font-size: 1rem; padding: 0.75rem 1.5rem; }
  .nav-toggle { display: flex; }

  .hero-sub { display: none; }
  .hero-title { font-size: clamp(2.8rem, 12vw, 5rem); }

  .cats-grid { grid-template-columns: 1fr; }

  .gallery-masonry { columns: 1; }

  .about-meta { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; }

  .lb-prev { left: 0.5rem; }
  .lb-next { right: 0.5rem; }
  .lb-close { top: 0.75rem; right: 0.75rem; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  .section { padding: 4rem 0; }
  .blog-grid { grid-template-columns: 1fr; }
  .tri-title { font-size: clamp(3rem, 18vw, 6rem); }
  .ch-bar { gap: 0.4rem; padding: 1rem; }
}