/* To Infinity UK — Project Folders design system
   -----------------------------------------------
   Palette:
     --ink        #1B2430  deep navy-ink, primary text/headings
     --paper      #EDE6D6  aged paper background
     --paper-dim  #E2D8C2  panel/card background
     --brass      #9C7A2E  brass accent — links, tabs, dividers
     --brass-dark #7C5F20  hover state
     --rule       #C9BFA5  hairline rules
     --stamp      #8A3324  ink-stamp red, used only for the "unlisted" badge
   Type:
     Display/body: "Spectral" (serif, archival, quietly characterful)
     Utility/mono: "IBM Plex Mono" — eyebrows, labels, captions, file names
   Signature: project cards rendered as manila folder tabs; the
   "unlisted" badge is a rotated ink-stamp treatment.
*/

@import url('https://fonts.googleapis.com/css2?family=Spectral:ital,wght@0,400;0,500;0,600;1,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --ink: #1B2430;
  --paper: #EDE6D6;
  --paper-dim: #E2D8C2;
  --brass: #9C7A2E;
  --brass-dark: #7C5F20;
  --rule: #C9BFA5;
  --stamp: #8A3324;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Spectral', Georgia, serif;
  line-height: 1.6;
}

a { color: var(--brass-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--brass-dark); outline-offset: 2px; }

.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass-dark);
  margin: 0 0 0.5rem;
}

/* ---------------- header / footer ---------------- */

.site-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--rule);
}
.site-brand {
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.site-head nav a { margin-left: 1.5rem; color: var(--ink); font-family: 'IBM Plex Mono', monospace; font-size: 0.9rem; }

.site-foot {
  border-top: 1px solid var(--rule);
  padding: 2rem 1.5rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  color: var(--brass-dark);
  text-align: center;
}

main { max-width: 960px; margin: 0 auto; padding: 2.5rem 1.5rem 5rem; }

/* ---------------- index / folder grid ---------------- */

.index-hero { margin-bottom: 3rem; }
.index-hero h1 { font-size: 2.75rem; margin: 0 0 0.75rem; }
.index-intro { max-width: 46em; color: #3a3025; }

.folder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.75rem 1.5rem;
}

.folder-card {
  display: block;
  position: relative;
  padding-top: 1.4rem;
}

.folder-tab {
  position: absolute;
  top: 0;
  left: 0.9rem;
  background: var(--brass);
  color: var(--paper);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.3rem 0.7rem;
  border-radius: 3px 3px 0 0;
  max-width: 80%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.folder-thumb {
  background: var(--paper-dim);
  border: 1px solid var(--rule);
  border-radius: 2px;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.folder-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

.folder-sub {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85rem;
  color: var(--ink);
  margin: 0.6rem 0 0;
}

.empty-note { font-family: 'IBM Plex Mono', monospace; color: var(--brass-dark); }

/* ---------------- project page ---------------- */

.project-hero { margin-bottom: 2.5rem; border-bottom: 1px solid var(--rule); padding-bottom: 2rem; }
.project-hero h1 { font-size: 2.5rem; margin: 0 0 0.5rem; }
.project-subtitle { font-size: 1.15rem; color: var(--brass-dark); margin: 0 0 1rem; }
.project-desc { max-width: 46em; }

.badge-unlisted {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--stamp);
  border: 1.5px solid var(--stamp);
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  transform: rotate(-2deg);
  margin-left: 0.6rem;
}

.project-section { margin: 3rem 0; }
.project-section h2 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brass-dark);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}
.gallery-item { margin: 0; }
.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: 2px;
  display: block;
}
.gallery-item figcaption {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: #4a4030;
  margin-top: 0.4rem;
}

.video-stack { display: flex; flex-direction: column; gap: 2rem; }
.video-item video, .video-item iframe {
  width: 100%;
  border: 1px solid var(--rule);
  border-radius: 2px;
  display: block;
}
.video-item figcaption {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: #4a4030;
  margin-top: 0.5rem;
}

.file-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 1.25rem; }
.file-item a {
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
}
.file-item p { margin: 0.3rem 0 0; max-width: 40em; }

.not-found { text-align: center; padding: 4rem 0; }

/* ---------------- lightbox ---------------- */

.lightbox-overlay {
  position: fixed; inset: 0;
  background: rgba(27, 36, 48, 0.92);
  display: flex; align-items: center; justify-content: center;
  padding: 2rem;
  z-index: 100;
}
.lightbox-overlay img { max-width: 100%; max-height: 80vh; border-radius: 2px; }
.lightbox-caption {
  position: absolute; bottom: 2rem; left: 0; right: 0;
  text-align: center; color: var(--paper);
  font-family: 'IBM Plex Mono', monospace; font-size: 0.85rem;
}
.lightbox-close {
  position: absolute; top: 1.5rem; right: 2rem;
  color: var(--paper); font-family: 'IBM Plex Mono', monospace;
  font-size: 1.5rem; background: none; border: none; cursor: pointer;
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* ---------------- homepage ---------------- */

body.home main.home-main { max-width: none; padding: 0; }

.home-hero {
  min-height: 62vh;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: flex-end;
  padding: 3rem 1.5rem;
}
.home-hero-inner { max-width: 960px; margin: 0 auto; width: 100%; color: var(--paper); }
.home-hero-eyebrow { color: var(--paper); opacity: 0.85; }
.home-hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin: 0 0 0.5rem;
  line-height: 1.05;
}
.home-hero-sub {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1rem;
  letter-spacing: 0.02em;
  margin: 0;
  opacity: 0.9;
}

.home-welcome {
  max-width: 960px;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  align-items: start;
}
.home-welcome-portrait img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: 2px;
}
.home-welcome-copy h2 { font-size: 2rem; margin: 0 0 1rem; }
.home-welcome-copy p { max-width: 42em; }

.cta-button {
  display: inline-block;
  margin-top: 1rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  background: var(--brass);
  color: var(--paper);
  border-radius: 3px;
  padding: 0.75rem 1.6rem;
  text-decoration: none;
}
.cta-button:hover { background: var(--brass-dark); text-decoration: none; }

@media (max-width: 640px) {
  .home-welcome { grid-template-columns: 1fr; }
  .home-welcome-portrait { max-width: 200px; }
}

/* ---------------- privacy / policy page ---------------- */

.policy-page { max-width: 960px; margin: 0 auto; padding: 0.5rem 0 5rem; }
.policy-logo { display: block; margin-bottom: 1.5rem; }
.policy-page h1 { font-size: 2.25rem; margin: 0 0 2.5rem; max-width: 30em; }

.policy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}
.policy-col h3 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--brass-dark);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.5rem;
  margin: 2rem 0 1rem;
}
.policy-col h3:first-child { margin-top: 0; }
.policy-col p { margin: 0 0 1.1rem; }
.policy-col ul { margin: 0 0 1.1rem; padding-left: 1.2rem; }
.policy-col li { margin-bottom: 0.4rem; }

@media (max-width: 760px) {
  .policy-grid { grid-template-columns: 1fr; gap: 0; }
}