/* ============================================================
   FlashBill — blog.css
   ============================================================ */

/* ── INDEX ── */
.blog-index__wrap { max-width: 1100px; margin: 0 auto; padding: 60px 5%; }
.blog-index__header { text-align: center; margin-bottom: 48px; }
.blog-index__title { font-size: clamp(28px, 4vw, 44px); font-weight: 700; margin: 12px 0 16px; color: var(--color-text); }
.blog-index__sub { font-size: 17px; color: var(--color-text-muted); max-width: 560px; margin: 0 auto; }

.blog-index__filters { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: 40px; }
.blog-filter { padding: 6px 16px; border-radius: 99px; font-size: 13px; font-weight: 500; text-decoration: none; border: 1px solid var(--color-border); color: var(--color-text-muted); transition: all 0.15s; }
.blog-filter:hover { border-color: var(--gold); color: var(--gold); }
.blog-filter--active { background: var(--gold); border-color: var(--gold); color: var(--color-bg); }

.blog-index__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.blog-index__empty { text-align: center; color: var(--color-text-muted); padding: 48px; }

/* ── CARD ── */
.blog-card { display: flex; flex-direction: column; gap: 10px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 24px; text-decoration: none; transition: border-color 0.2s, box-shadow 0.2s; }
.blog-card:hover { border-color: var(--gold); box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
.blog-card__cat { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--gold); background: var(--gold-soft); padding: 2px 8px; border-radius: 99px; align-self: flex-start; }
.blog-card__cat--sm { font-size: 10px; }
.blog-card__title { font-size: 16px; font-weight: 600; color: var(--color-text); line-height: 1.4; margin: 0; }
.blog-card__excerpt { font-size: 14px; color: var(--color-text-muted); line-height: 1.6; flex: 1; }
.blog-card__meta { font-size: 12px; color: var(--color-text-light); margin-top: 4px; }

/* ── ARTICLE ── */
.blog-article__wrap { max-width: 1100px; margin: 0 auto; padding: 48px 5%; }
.blog-article__breadcrumb { font-size: 13px; color: var(--color-text-muted); margin-bottom: 32px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.blog-article__breadcrumb a { color: var(--color-text-muted); text-decoration: none; }
.blog-article__breadcrumb a:hover { color: var(--gold); }

.blog-article__layout { display: grid; grid-template-columns: 1fr 280px; gap: 48px; align-items: start; }
.blog-article__header { margin-bottom: 32px; }
.blog-article__title { font-size: clamp(24px, 3.5vw, 40px); font-weight: 700; color: var(--color-text); line-height: 1.2; margin: 12px 0 16px; }
.blog-article__meta { font-size: 13px; color: var(--color-text-muted); }

/* ── PROSE (article body) ── */
.prose { font-size: 16px; line-height: 1.75; color: var(--color-text); }
.prose h2 { font-size: 22px; font-weight: 700; margin: 40px 0 16px; color: var(--color-text); }
.prose h3 { font-size: 18px; font-weight: 600; margin: 28px 0 12px; color: var(--color-text); }
.prose p { margin: 0 0 20px; }
.prose ul, .prose ol { margin: 0 0 20px 24px; }
.prose li { margin-bottom: 8px; }
.prose a { color: var(--gold); text-decoration: underline; text-underline-offset: 3px; }
.prose strong { font-weight: 600; color: var(--color-text); }
.prose table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.prose th { text-align: left; padding: 10px 14px; background: var(--color-surface-2); border: 1px solid var(--color-border); font-weight: 600; }
.prose td { padding: 10px 14px; border: 1px solid var(--color-border); }
.prose blockquote { border-left: 3px solid var(--gold); padding: 12px 20px; margin: 24px 0; background: var(--gold-soft); border-radius: 0 var(--radius) var(--radius) 0; color: var(--color-text-muted); }
.prose code { background: var(--color-surface-2); padding: 2px 6px; border-radius: 4px; font-size: 14px; font-family: monospace; }

/* ── CTA BOX ── */
.blog-article__cta { margin-top: 48px; background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px; }
.blog-cta__inner { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.blog-cta__logo-mark { font-size: 32px; flex-shrink: 0; }
.blog-cta__title { font-size: 17px; font-weight: 700; color: var(--color-text); margin: 0 0 4px; }
.blog-cta__sub { font-size: 14px; color: var(--color-text-muted); margin: 0; }
.blog-cta__btn { flex-shrink: 0; white-space: nowrap; }

/* ── SIDEBAR ── */
.blog-article__sidebar { position: sticky; top: 80px; }
.blog-sidebar__block { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 20px; margin-bottom: 16px; }
.blog-sidebar__title { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-muted); margin: 0 0 14px; }
.blog-sidebar__link { display: flex; flex-direction: column; gap: 4px; text-decoration: none; padding: 10px 0; border-bottom: 1px solid var(--color-border); font-size: 14px; color: var(--color-text); line-height: 1.4; }
.blog-sidebar__link:last-child { border-bottom: none; }
.blog-sidebar__link:hover { color: var(--gold); }
.blog-sidebar__cta-small { font-size: 14px; color: var(--color-text-muted); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
    .blog-index__grid { grid-template-columns: 1fr 1fr; }
    .blog-article__layout { grid-template-columns: 1fr; }
    .blog-article__sidebar { position: static; }
}
@media (max-width: 600px) {
    .blog-index__wrap { padding: 40px 16px; }
    .blog-article__wrap { padding: 32px 16px; }
    .blog-index__grid { grid-template-columns: 1fr; }
    .blog-cta__inner { flex-direction: column; align-items: flex-start; }
}