/* ============================================
   Tokens
   ============================================ */
:root {
  --bg: #0b0e1a;
  --bg-panel: #12162a;
  --text: #e9e6dc;
  --text-dim: #8b92ac;
  --ember: #c1604a;
  --teal: #4fa8a0;
  --hairline: rgba(233, 230, 220, 0.14);

  --font-display: 'Spectral', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ============================================
   Site nav (every page)
   ============================================ */
.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 40px;
  border-bottom: 1px solid var(--hairline);
}

.site-nav__mark {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-nav__links {
  display: flex;
  gap: 28px;
  font-size: 0.9rem;
}

.site-nav__links a {
  text-decoration: none;
  color: var(--text);
  opacity: 0.8;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: opacity 0.2s, border-color 0.2s;
}

.site-nav__links a:hover,
.site-nav__links a.is-active { opacity: 1; border-color: var(--ember); }

@media (max-width: 640px) {
  .site-nav { padding: 18px 20px; }
  .site-nav__links { gap: 12px; font-size: 0.72rem; }
}

/* ============================================
   Hero (home page only)
   ============================================ */
.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: #000;
}

/* Blurred, darkened copy fills the banner edge-to-edge behind the real photo,
   so a portrait or oddly-cropped source image never has to be zoomed or
   cropped to fill a wide screen. */
.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(50px) brightness(0.45) saturate(1.1);
  transform: scale(1.15);
}

/* The actual photo, shown in full — nothing cropped out. */
.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,14,26,0.35) 0%, rgba(11,14,26,0.1) 35%, rgba(11,14,26,0.55) 75%, rgba(11,14,26,0.95) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  padding: 0 40px 72px;
  max-width: 720px;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  margin: 0 0 12px;
  line-height: 1.05;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--text-dim);
  margin: 0;
  max-width: 34ch;
}

@media (max-width: 640px) {
  .hero__content { padding: 0 20px 48px; }
}

/* ============================================
   Page header (category pages)
   ============================================ */
.page-header {
  padding: 88px 40px 56px;
  max-width: 900px;
}

.page-header h1 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 0 0 14px;
}

.page-header p {
  color: var(--text-dim);
  max-width: 60ch;
  margin: 0;
}

@media (max-width: 640px) {
  .page-header { padding: 56px 20px 40px; }
}

/* ============================================
   Layout shell
   ============================================ */
main { max-width: 1180px; margin: 0 auto; padding: 0 40px; }

@media (max-width: 640px) {
  main { padding: 0 20px; }
}

.intro {
  padding: 64px 0;
  border-bottom: 1px solid var(--hairline);
}

.intro__text {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 300;
  line-height: 1.55;
  max-width: 62ch;
  margin: 0 0 22px;
}

.intro__text:last-child {
  margin-bottom: 0;
}

/* ============================================
   Category tiles (home page)
   ============================================ */
.tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: 64px 0 88px;
}

.tile {
  display: block;
  text-decoration: none;
  color: var(--text);
}

.tile__image-wrap {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 2px;
}

.tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.tile:hover img { transform: scale(1.04); }

.tile h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 1.5rem;
  margin: 18px 0 6px;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 10px;
}

.tile p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin: 0;
}

@media (max-width: 820px) {
  .tiles { grid-template-columns: 1fr; }
}

/* ============================================
   Gallery grid (category pages)
   ============================================ */
.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 44px 32px;
  padding-bottom: 96px;
}

.plate { margin: 0; }

.plate img {
  width: 100%;
  display: block;
  border-radius: 2px;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.plate figcaption {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--hairline);
}

.plate__name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  display: block;
}

.plate__name em {
  font-style: italic;
  color: var(--text-dim);
  font-size: 0.92em;
}

@media (max-width: 720px) {
  .gallery { grid-template-columns: 1fr; }
}

/* A single wide feature plate (e.g. a hero image within a gallery) */
.plate--wide { grid-column: 1 / -1; }
.plate--wide img { aspect-ratio: 16 / 8; }

/* ============================================
   Process section
   ============================================ */
.process {
  padding: 56px 0 96px;
  border-top: 1px solid var(--hairline);
}

.process__inner { max-width: 62ch; }

.process h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 1.5rem;
  margin: 0 0 18px;
}

.process p { color: var(--text-dim); font-size: 1rem; }

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: 32px 40px 56px;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer a {
  color: var(--text-dim);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============================================
   Modal (image + science info)
   ============================================ */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(6, 7, 13, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 32px;
  overflow-y: auto;
}

.modal.is-open { display: flex; }

.modal__inner {
  display: flex;
  gap: 32px;
  max-width: 1100px;
  width: 100%;
  align-items: flex-start;
}

.modal__inner img {
  flex: 1 1 60%;
  max-width: 60%;
  max-height: 82vh;
  object-fit: contain;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal__info {
  flex: 1 1 40%;
  padding-top: 8px;
}

.modal__info h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin: 0 0 4px;
}

.modal__info .modal__common {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  color: var(--text-dim);
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.modal__info p {
  color: var(--text);
  line-height: 1.65;
  margin: 0 0 20px;
}

.modal__capture {
  display: block;
  font-family: var(--font-mono);
  color: var(--teal);
  font-size: 0.85rem;
  padding-top: 14px;
  border-top: 1px solid var(--hairline);
}

.modal__notes {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--hairline);
}

.modal__notes h4 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 1rem;
  color: var(--ember);
  margin: 0 0 8px;
}

.modal__notes p {
  color: var(--text-dim);
  font-size: 0.95rem;
  font-style: italic;
  margin: 0;
}

.modal__close {
  position: fixed;
  top: 24px;
  right: 32px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.8;
  z-index: 101;
}

.modal__close:hover { opacity: 1; }

.modal__close:focus-visible,
.site-nav__links a:focus-visible,
.tile:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

@media (max-width: 780px) {
  .modal__inner { flex-direction: column; }
  .modal__inner img { max-width: 100%; }
  .modal__info { flex-basis: auto; }
}