/* ------------------------------------------------------------------ */
/* Tokens                                                              */
/* ------------------------------------------------------------------ */
:root{
  --ink: #1d2a26;
  --ink-soft: #4a5c56;
  --paper: #faf7f1;
  --paper-raised: #ffffff;
  --line: #ddd4c4;
  --accent: #2f6e62;
  --accent-deep: #1f4d44;
  --accent-tint: #e3ece7;

  --font-display: Georgia, "Iowan Old Style", "Palatino Linotype", "URW Palladio L", serif;
  --font-body: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

  --radius: 14px;
  --wrap: 1180px;
}

*{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; }
body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; }

.wrap{
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

/* ------------------------------------------------------------------ */
/* Header                                                              */
/* ------------------------------------------------------------------ */
.site-header{
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  padding: 22px 0;
}
.header-inner{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
}
.brand{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}
.brand-mark{ color: var(--accent); flex-shrink: 0; }
.brand-word{
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.01em;
}
.brand-word-accent{ color: var(--accent); }
.header-tag{
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

/* ------------------------------------------------------------------ */
/* Intro                                                               */
/* ------------------------------------------------------------------ */
.intro{
  padding: 56px 0 28px;
  max-width: 820px;
}
.intro h1{
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 2.9rem);
  line-height: 1.12;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.intro-lede{
  margin: 0;
  font-size: 1.08rem;
  color: var(--ink-soft);
  max-width: 640px;
}

/* ------------------------------------------------------------------ */
/* Filter bar                                                          */
/* ------------------------------------------------------------------ */
.filter-bar{
  padding: 20px 0 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 32px;
  border-bottom: 1px solid var(--line);
}
.filter-group{
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 10px;
}
.filter-label{
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-right: 4px;
}
.chips{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip{
  font-family: var(--font-body);
  font-size: 0.92rem;
  padding: 9px 16px;
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper-raised);
  color: var(--ink);
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.12s ease;
}
.chip:hover{ border-color: var(--accent); }
.chip:active{ transform: scale(0.97); }
.chip.is-active{
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.result-count{
  margin: 0 0 0 auto;
  font-size: 0.88rem;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------------ */
/* Category tiles                                                      */
/* ------------------------------------------------------------------ */
.categories{
  padding: 32px 0 8px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.category-tile{
  position: relative;
  border: none;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
  padding: 0;
  background: var(--ink);
  min-height: 44px;
}
.category-tile img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.category-tile:hover img{ transform: scale(1.06); }
.category-tile::after{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20,30,27,0) 35%, rgba(16,24,21,0.78) 100%);
}
.category-tile-label{
  position: absolute;
  left: 14px;
  bottom: 12px;
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

/* ------------------------------------------------------------------ */
/* Card grid                                                           */
/* ------------------------------------------------------------------ */
.grid-section{ padding: 44px 0 72px; }
.card-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.card{
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: opacity 0.35s ease, transform 0.35s ease, border-color 0.2s ease;
}
.card:hover{
  border-color: var(--accent);
}
.card.is-hidden{
  display: none;
}
.card-top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-soft);
}
.card-category{ color: var(--accent-deep); font-weight: 600; }
.card-title{
  font-family: var(--font-display);
  font-size: 1.32rem;
  margin: 2px 0 0;
  line-height: 1.25;
}
.card-desc{
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.96rem;
  flex-grow: 1;
}
.card-links{
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 6px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.card-link{
  text-decoration: none;
  font-size: 0.92rem;
  padding: 6px 0;
  min-height: 24px;
  color: var(--ink);
}
.card-link-primary{
  color: var(--accent-deep);
  font-weight: 600;
}
.card-link-primary::after{ content: " →"; }
.card-link:hover{ text-decoration: underline; }

.empty-state{
  text-align: center;
  color: var(--ink-soft);
  padding: 48px 0;
  margin: 0;
}

/* ------------------------------------------------------------------ */
/* Scroll reveal                                                       */
/* ------------------------------------------------------------------ */
.reveal{
  opacity: 0;
  transform: translateY(14px);
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

/* ------------------------------------------------------------------ */
/* Footer                                                              */
/* ------------------------------------------------------------------ */
.site-footer{
  border-top: 1px solid var(--line);
  padding: 26px 0 40px;
  text-align: center;
}
.site-footer p{
  margin: 0;
  font-size: 0.86rem;
  color: var(--ink-soft);
}

/* ------------------------------------------------------------------ */
/* Responsive                                                          */
/* ------------------------------------------------------------------ */
@media (max-width: 860px){
  .categories{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px){
  .wrap{ padding: 0 18px; }
  .intro{ padding: 40px 0 22px; }
  .filter-bar{ padding: 16px 0 22px; gap: 16px 24px; }
  .result-count{ margin-left: 0; }
  .categories{ padding: 24px 0 4px; gap: 12px; }
  .category-tile-label{ font-size: 0.95rem; }
  .card-grid{ grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------------ */
/* Reduced motion                                                      */
/* ------------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce){
  *{
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  .reveal{ opacity: 1; transform: none; }
}