/* ═══════════════════════════════════════════════════════
   SUNAGRO TECHINFO — article.css
   Styles for individual article pages only.
   Extends category.css (must be loaded first).
   ═══════════════════════════════════════════════════════ */

/* ── TOP BAR ───────────────────────────────────────────── */
.top-bar {
  background: #111827;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  font-size: .75rem;
  font-family: var(--font-sans);
}
.top-bar-left  { display: flex; align-items: center; gap: 14px; }
.tb-date { font-weight: 500; color: rgba(255,255,255,.75); }
.tb-sep  { color: rgba(255,255,255,.2); }
.tb-loc  { color: rgba(255,255,255,.5); }
.top-bar-right { display: flex; align-items: center; gap: 16px; }
.top-bar-right a { color: rgba(255,255,255,.6); font-weight: 500; transition: color .2s; }
.top-bar-right a:hover { color: #fff; }
.tb-divider { width: 1px; height: 14px; background: rgba(255,255,255,.15); }
.tb-social { display: flex; align-items: center; gap: 6px; }
.tb-social a {
  width: 26px; height: 26px; border-radius: 5px;
  background: rgba(255,255,255,.09);
  display: flex; align-items: center; justify-content: center;
  font-size: .72rem; font-weight: 700;
  color: rgba(255,255,255,.65);
  border: 1px solid rgba(255,255,255,.07);
  transition: background .2s, color .2s;
}
.tb-social a:hover { background: var(--clr-blue); color: #fff; }

/* ── BREADCRUMB BAR ────────────────────────────────────── */
.art-breadcrumb-wrap {
  background: var(--clr-bg2);
  border-bottom: 1px solid var(--clr-border);
  padding: 9px 0;
}
.art-breadcrumb {
  display: flex; align-items: center; gap: 5px;
  font-size: .77rem;
  color: var(--clr-muted);
  flex-wrap: wrap;
}
.art-breadcrumb a { color: var(--clr-muted); transition: color .2s; }
.art-breadcrumb a:hover { color: var(--clr-blue); }
.art-breadcrumb .sep { color: var(--clr-border2); }
.art-breadcrumb .current { color: var(--clr-text2); font-weight: 500; max-width: 360px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── ARTICLE LAYOUT ────────────────────────────────────── */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  padding: 36px 0 60px;
}

/* ── ARTICLE HEADER ────────────────────────────────────── */
.art-header { margin-bottom: 26px; }
.art-top-tag {
  display: block;
  font-size: .67rem; font-weight: 800;
  letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--clr-blue);
  margin-bottom: 12px;
}
.art-main-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  line-height: 1.18;
  color: var(--clr-text);
  margin-bottom: 14px;
}
.art-header-meta-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 16px;
}
.art-excerpt-hero {
  font-size: 1rem;
  color: var(--clr-muted);
  line-height: 1.65;
  max-width: 540px;
}

/* ── AUTHOR ROW ────────────────────────────────────────── */
.art-author-row {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 0;
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  margin-bottom: 24px;
}
.art-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--clr-gold);
  display: flex; align-items: center; justify-content: center;
  font-size: .78rem; font-weight: 800; color: #111;
  flex-shrink: 0;
}
.art-author-text { font-size: .82rem; color: var(--clr-muted); }
.art-author-text strong { color: var(--clr-text2); font-weight: 600; }
.art-author-text .sep { margin: 0 5px; color: var(--clr-border2); }

/* ── HERO IMAGE ────────────────────────────────────────── */
.art-hero-img {
  width: 100%; height: 400px;
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
  margin-bottom: 28px;
  box-shadow: var(--sh-md);
}
.art-hero-img-bg { position: absolute; inset: 0; height: 100%; transition: transform .6s var(--ease); }
.art-hero-img:hover .art-hero-img-bg { transform: scale(1.02); }

/* ── ARTICLE BODY ──────────────────────────────────────── */
.art-body { font-size: .97rem; line-height: 1.82; color: var(--clr-text2); }
.art-body p { margin-bottom: 18px; }
.art-body h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem; font-weight: 800;
  color: var(--clr-text);
  margin: 32px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--clr-border);
}
.art-body h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem; font-weight: 700;
  color: var(--clr-text);
  margin: 24px 0 10px;
}
.art-body ul { margin: 0 0 18px; display: flex; flex-direction: column; gap: 10px; }
.art-body ul li { display: flex; align-items: flex-start; gap: 10px; font-size: .94rem; line-height: 1.6; }
.art-body ul li::before {
  content: '';
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--clr-blue)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E")
    center/12px no-repeat;
  flex-shrink: 0;
  margin-top: 2px;
}
.art-body blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  border-left: 4px solid var(--clr-blue);
  background: var(--clr-bg2);
  border-radius: 0 var(--r) var(--r) 0;
  position: relative;
}
.art-body blockquote::before {
  content: '\201C';
  font-family: var(--font-serif);
  font-size: 4rem; line-height: 1;
  color: var(--clr-blue); opacity: .2;
  position: absolute; top: 4px; left: 14px;
}
.art-body blockquote p { font-family: var(--font-serif); font-size: 1.04rem; font-style: italic; color: var(--clr-text); margin-bottom: 8px; position: relative; z-index: 1; }
.art-body blockquote cite { font-size: .82rem; color: var(--clr-muted); font-style: normal; font-weight: 500; }

/* ── TAGS ──────────────────────────────────────────────── */
.art-tags {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
  margin: 32px 0 28px;
  padding-top: 20px;
  border-top: 1px solid var(--clr-border);
}
.art-tags-label { font-size: .82rem; font-weight: 600; color: var(--clr-muted); }
.art-tag-pill {
  padding: 4px 13px; border-radius: 20px;
  border: 1.5px solid var(--clr-border2);
  font-size: .75rem; font-weight: 500;
  color: var(--clr-text2);
  background: var(--clr-bg);
  transition: border-color .2s, background .2s, color .2s;
  cursor: pointer;
}
.art-tag-pill:hover { border-color: var(--clr-blue); color: var(--clr-blue); background: var(--clr-blue-glow); }

/* ── PREV / NEXT ───────────────────────────────────────── */
.art-prevnext { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 40px; }
.pn-card {
  padding: 16px 18px;
  border-radius: var(--r);
  border: 1.5px solid var(--clr-border);
  background: var(--clr-bg);
  cursor: pointer;
  display: block;
  transition: border-color .2s, box-shadow .2s, transform .2s var(--spring);
}
.pn-card:hover { border-color: var(--clr-blue); box-shadow: var(--sh-sm); transform: translateY(-2px); }
.pn-card.next  { text-align: right; }
.pn-label { font-size: .7rem; font-weight: 700; letter-spacing: .8px; text-transform: uppercase; color: var(--clr-muted); margin-bottom: 6px; display: flex; align-items: center; gap: 5px; }
.pn-card.next .pn-label { justify-content: flex-end; }
.pn-title { font-family: var(--font-serif); font-size: .9rem; font-weight: 700; color: var(--clr-text); line-height: 1.35; transition: color .2s; }
.pn-card:hover .pn-title { color: var(--clr-blue); }

/* ── RELATED ARTICLES ──────────────────────────────────── */
.related-section { margin-top: 8px; }
.related-section h2 {
  font-family: var(--font-serif); font-size: 1.3rem; font-weight: 800;
  color: var(--clr-text); margin-bottom: 20px;
  display: flex; align-items: center; gap: 12px;
}
.related-section h2::before { content: ''; display: block; width: 4px; height: 1.35em; background: linear-gradient(180deg, var(--clr-blue), var(--clr-blue-lt)); border-radius: 2px; flex-shrink: 0; }
.related-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.rel-card {
  border-radius: var(--r); overflow: hidden;
  border: 1px solid var(--clr-border);
  background: var(--clr-bg);
  box-shadow: var(--sh-xs);
  cursor: pointer;
  display: block;
  transition: transform .3s var(--spring), box-shadow .3s;
}
.rel-card:hover { transform: translateY(-4px); box-shadow: var(--sh-md); }
.rel-img { height: 120px; position: relative; overflow: hidden; }
.rel-img-bg { position: absolute; inset: 0; height: 100%; transition: transform .4s var(--ease); }
.rel-card:hover .rel-img-bg { transform: scale(1.07); }
.rel-body  { padding: 12px; }
.rel-cat   { font-size: .63rem; font-weight: 800; letter-spacing: .8px; text-transform: uppercase; color: var(--clr-blue); margin-bottom: 5px; }
.rel-title { font-family: var(--font-serif); font-size: .85rem; font-weight: 700; line-height: 1.32; color: var(--clr-text); margin-bottom: 5px; transition: color .2s; }
.rel-card:hover .rel-title { color: var(--clr-blue); }
.rel-meta  { font-size: .71rem; color: var(--clr-muted); }

/* ── ARTICLE SIDEBAR (inherits .sidebar from category.css) */
.art-sidebar { }   /* override sticky if needed */

/* ── RESPONSIVE ────────────────────────────────────────── */
@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; }
  .art-sidebar    { display: none; }
  .related-grid   { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 640px) {
  .top-bar              { display: none; }
  .art-breadcrumb-wrap  { padding: 8px 0; }
  .art-main-title       { font-size: 1.35rem; line-height: 1.2; }
  .art-hero-img         { height: 200px; border-radius: 8px; }
  .art-prevnext         { grid-template-columns: 1fr; gap: 8px; }
  .art-header-meta-row  { flex-direction: column; }
  .art-excerpt-hero     { font-size: .9rem; }
  .art-body             { font-size: .9rem; }
  .art-body h2          { font-size: 1.15rem; }
  .art-author-row       { padding: 10px 0; }
  .related-grid         { grid-template-columns: repeat(2,1fr); gap: 10px; }
  .pn-card              { padding: 12px 14px; }
}
@media (max-width: 400px) {
  .art-main-title  { font-size: 1.2rem; }
  .art-hero-img    { height: 170px; }
  .related-grid    { grid-template-columns: 1fr; }
  .art-prevnext    { grid-template-columns: 1fr; }
}