/* flubpub gallery index — chrome CSS for masthead, tile grid, and card frame.
   Per-post visual content lives inside each tile's <svg>, not here. */

:root {
  --paper:   #f4efe6;
  --ink:     #1a1a1e;
  --muted:   #8a8579;
  --gutter:  28px;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: #0a0a12;
  color: var(--paper);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

#bg {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  display: block;
}

.page {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 80px 40px 120px;
}

/* ─── Masthead ─────────────────────────────────────── */

header.masthead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 72px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(244, 239, 230, 0.15);
}

.masthead .brand {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 400;
  font-style: italic;
  font-size: 34px;
  letter-spacing: -0.01em;
  color: rgba(244, 239, 230, 0.94);
  margin: 0;
}

.masthead .tagline {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, 0.5);
}

/* ─── Grid ─────────────────────────────────────────── */

.grid {
  display: grid;
  /* 380px minimum tile width ensures room for long titles like
     "The Fisher–Frobenius Coincidence" at 22px without wrapping.
     At 1400px max-width this yields 3 columns × ~421px each. */
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: var(--gutter);
}

.grid .empty {
  grid-column: 1 / -1;
  padding: 80px 0;
  text-align: center;
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-style: italic;
  font-size: 22px;
  color: rgba(244, 239, 230, 0.55);
}

.tile {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--paper);
  color: var(--ink);
  border-radius: 2px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 20px;
  text-decoration: none;
  transition: transform 260ms cubic-bezier(.2,.7,.2,1),
              box-shadow 260ms cubic-bezier(.2,.7,.2,1);
  box-shadow:
    0  1px  2px rgba(0,0,0,0.25),
    0 10px 40px rgba(0,0,0,0.28);
}

.tile:hover {
  transform: translateY(-4px);
  box-shadow:
    0  1px  2px rgba(0,0,0,0.25),
    0 22px 54px rgba(0,0,0,0.40);
}

.tile .kicker {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 10px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

.tile .visual {
  flex: 1;
  margin: 14px -4px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 0;
}
.tile .visual svg { width: 100%; height: 100%; display: block; }

.tile .title {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 22px;
  line-height: 1.15;
  font-weight: 500;
  letter-spacing: -0.005em;
  margin: 0;
  color: var(--ink);
}
.tile .tag-row {
  margin-top: 6px;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* Per-tile accent — one small bit of color on an otherwise restrained card.
   Stands in for the "one extracted dominant hue" the card-construction skill
   will eventually write into each post's tile metadata. */
.tile[data-accent="rust"] { --tile-accent: #c44a2a; }
.tile[data-accent="teal"] { --tile-accent: #3a6e6e; }
.tile[data-accent="sand"] { --tile-accent: #b08a55; }
.tile[data-accent="ink"]  { --tile-accent: #2b2b2e; }
.tile[data-accent="moss"] { --tile-accent: #5b6b3a; }
.tile[data-accent="plum"] { --tile-accent: #6b3a5b; }

.tile .swatch {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--tile-accent, #888);
  margin-right: 7px;
  vertical-align: middle;
  transform: translateY(-1px);
}

/* ─── Footer ───────────────────────────────────────── */

footer.page-footer {
  margin-top: 96px;
  padding-top: 24px;
  border-top: 1px solid rgba(244, 239, 230, 0.15);
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, 0.45);
}