/* ============================================================
   index.css — Coinage Blog
   Strona główna: hero-c, karty artykułów, filtrowanie
   ============================================================ */

/* ── HERO C ── */
.hero-c { background: var(--green); }
.hero-c-inner {
  max-width: var(--wide);
  margin: 0 auto;
  display: flex;
  align-items: stretch;
}
.hero-c-left {
  padding: 1.6rem 2.2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border-right: 1px solid rgba(255,255,255,.12);
  min-width: 210px;
  gap: .2rem;
}
.hero-c-title {
  font-family: var(--heading);
  font-size: 2.4rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -.02em;
  line-height: 1;
}
.hero-c-sub {
  font-family: var(--mono);
  font-size: .48rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
}
.hero-c-right {
  padding: 1.4rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: .7rem;
  flex: 1;
}
.hero-c-desc {
  font-family: var(--serif);
  font-size: .88rem;
  color: rgba(255,255,255,.8);
  font-style: italic;
  line-height: 1.65;
  white-space: nowrap;
}

/* ── FILTROWANIE ── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
  padding: .7rem 1rem;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 6px;
  margin-bottom: 1.6rem;
}
.filter-bar-label {
  font-family: var(--mono);
  font-size: .46rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-right: .3rem;
  flex-shrink: 0;
}
.ftag {
  font-family: var(--mono);
  font-size: .46rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .22rem .7rem;
  border-radius: 4px;
  border: 1px solid var(--rule);
  background: #fff;
  color: var(--text-dim);
  cursor: pointer;
  transition: all .15s;
  user-select: none;
}
.ftag:hover { border-color: var(--green-bdr); color: var(--green); }
.ftag.ftag-all { border-style: dashed; }
.ftag.ftag-active { background: var(--green-lt); color: var(--green); border-color: var(--green-bdr); font-weight: 600; }
.ftag.ftag-red.ftag-active { background: var(--red-bg); color: var(--red); border-color: var(--red-bdr); }

/* ── MAIN ── */
.main { max-width: var(--wide); margin: 1.2rem auto 5rem; padding: 0 2rem; }
.section-label {
  font-family: var(--mono);
  font-size: .5rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: .8rem;
}
.section-label::after { content: ''; flex: 1; height: 1px; background: var(--rule); }

/* ── KARTY ARTYKUŁÓW ── */
.articles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.art-card {
  border: 1px solid var(--rule);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .2s, transform .2s, opacity .25s;
  text-decoration: none;
  color: inherit;
}
.art-card * { text-decoration: none; }
.art-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,.09); transform: translateY(-2px); text-decoration: none; }
.art-card.dimmed { opacity: .15; pointer-events: none; transform: scale(.98); }
.art-card-hero {
  height: 140px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.art-card-hero img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.art-card-body { padding: 1.1rem 1.2rem 1rem; flex: 1; display: flex; flex-direction: column; gap: .5rem; }
.art-card-meta { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.art-card-date { font-family: var(--mono); font-size: .48rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text-faint); }
.art-card-tags { display: flex; gap: .3rem; flex-wrap: wrap; }
.art-card-tag {
  font-family: var(--mono);
  font-size: .42rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  background: #e8f4ee;
  color: #1d4a2e;
  border: 1px solid #8fc4a4;
  padding: .18rem .5rem;
  border-radius: 3px;
}
.art-card-tag.red { background: var(--red-bg); color: var(--red); border-color: var(--red-bdr); }
.art-card-title { font-family: var(--heading); font-size: 1rem; font-weight: 700; color: var(--text); line-height: 1.25; letter-spacing: -.01em; }
.art-card-subtitle { font-size: .82rem; font-style: italic; color: var(--text-dim); margin-top: -.3rem; }
.art-card-excerpt { font-size: .82rem; color: var(--text-dim); line-height: 1.6; flex: 1; }
.art-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .7rem 1.2rem;
  border-top: 1px solid var(--rule);
  background: var(--gray-bg);
}
.art-card-readmore { font-family: var(--mono); font-size: .5rem; letter-spacing: .1em; text-transform: uppercase; color: var(--green); }
.art-card-readtime { font-family: var(--mono); font-size: .48rem; color: var(--text-faint); }

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .hero-c-inner { flex-direction: column; }
  .hero-c-left { border-right: none; border-bottom: 1px solid rgba(255,255,255,.12); min-width: auto; padding: 1.2rem; }
  .hero-c-right { padding: 1.2rem; }
  .hero-c-desc { white-space: normal; }
  .main { padding: 0 1.2rem; }
  .articles { grid-template-columns: 1fr; }
}