/* ===== ARTICLES PAGE CSS ===== */
.articles-hero{border-bottom:1px solid var(--border);padding:56px 32px 48px;}
.articles-hero-inner{max-width:1240px;margin:0 auto;}
.articles-hero-label{font-size:13px;color:var(--text5);letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px;}
.articles-hero-title{font-family:var(--font-head);font-weight:700;font-size:52px;letter-spacing:-.035em;margin:0 0 16px;}
.articles-hero-lead{font-size:17px;color:var(--text3);max-width:540px;line-height:1.6;}

.articles-filters{border-bottom:1px solid var(--border);background:var(--bg2);position:sticky;top:65px;z-index:10;}
.articles-filters-inner{max-width:1240px;margin:0 auto;padding:0 32px;display:flex;align-items:center;gap:0;overflow-x:auto;}
.articles-filter-btn{padding:16px 20px;background:none;border:none;border-bottom:2px solid transparent;color:var(--text4);font-family:var(--font-body);font-weight:600;font-size:14px;cursor:pointer;white-space:nowrap;transition:color .2s,border-color .2s;}
.articles-filter-btn:hover{color:#ccc;}
.articles-filter-btn.active{color:#fff;border-bottom-color:var(--accent);}
.articles-filter-sep{width:1px;height:20px;background:var(--border3);margin:0 4px;}

.articles-main{max-width:1240px;margin:0 auto;padding:48px 32px 100px;}
.articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.article-card{border:1px solid var(--border2);border-radius:16px;overflow:hidden;background:var(--bg3);cursor:pointer;transition:border-color .25s,transform .25s;text-decoration:none;display:block;color:#fff;}
.article-card:hover{border-color:#383838;transform:translateY(-4px);}
.article-card-thumb{aspect-ratio:16/9;background:repeating-linear-gradient(45deg,#131313,#131313 12px,#171717 12px,#171717 24px);display:flex;align-items:flex-end;padding:16px;position:relative;}
.article-card-thumb-tag{position:absolute;top:14px;left:14px;padding:4px 10px;border-radius:100px;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;}
.article-card-thumb-tag.aberturas{background:rgba(74,222,128,.15);color:var(--accent);}
.article-card-thumb-tag.taticas{background:rgba(224,179,65,.15);color:#e0b341;}
.article-card-thumb-tag.estrategia{background:rgba(91,141,239,.15);color:#5b8def;}
.article-card-thumb-tag.finais{background:rgba(200,100,100,.15);color:#e07070;}
.article-card-body{padding:22px 22px 26px;}
.article-card-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap;}
.article-card-level{font-size:11px;color:var(--text5);border:1px solid var(--border3);border-radius:100px;padding:2px 8px;}
.article-card-read{font-size:12px;color:var(--text5);}
.article-card-title{font-family:var(--font-head);font-weight:700;font-size:19px;line-height:1.3;letter-spacing:-.02em;margin:0 0 10px;}
.article-card-excerpt{font-size:14px;line-height:1.55;color:var(--text4);margin:0;}
.articles-empty{text-align:center;padding:60px 0;color:var(--text4);font-size:16px;}

@media(max-width:900px){
  .articles-hero-title{font-size:36px;}
  .articles-grid{grid-template-columns:1fr;}
}