:root{
  --bg:#0A0A0A;--text:#F5F1E9;--gold:#C8A24B;--line:rgba(245,241,233,0.15);
  --font-display:"atyp-bl-variable","Helvetica Neue",Arial,sans-serif;
  --font-text:"neulis-neue","Helvetica Neue",Arial,sans-serif;
  --maxw:760px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font-text);font-size:18px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
::selection{background:var(--gold);color:var(--bg)}

/* header */
header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:18px 40px;background:rgba(10,10,10,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header .logo{height:22px}
header .back{font-size:14px;letter-spacing:.06em}
header .back:hover{color:var(--gold)}
@media(max-width:600px){header{padding:16px 22px}}

/* shared wrap */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}

/* ---------- index listing ---------- */
.diario-hero{padding:120px 0 60px;border-bottom:1px solid var(--line)}
.diario-hero h1{font-family:var(--font-display);font-weight:500;letter-spacing:-.02em;
  font-size:clamp(40px,7vw,74px);line-height:1.02;margin:16px 0 20px}
.diario-hero p{font-size:clamp(17px,2vw,21px);opacity:.85;max-width:60ch}

.posts{padding:60px 0 120px;display:grid;gap:0}
.post-row{display:grid;grid-template-columns:170px 1fr auto;gap:30px;align-items:start;
  padding:38px 0;border-bottom:1px solid var(--line);transition:opacity .3s}
.post-row:hover{opacity:1}
.post-row:hover h2{color:var(--gold)}
.post-row .meta{font-size:13px;letter-spacing:.08em;text-transform:uppercase;opacity:.6}
.post-row h2{font-family:var(--font-display);font-weight:400;font-size:clamp(24px,3vw,34px);
  line-height:1.15;letter-spacing:-.01em;margin-bottom:10px;transition:color .3s}
.post-row p{opacity:.75;font-size:16px;max-width:60ch}
.post-row .go{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;flex:none;transition:all .3s}
.post-row:hover .go{border-color:var(--gold);background:var(--gold);color:var(--bg)}
@media(max-width:720px){
  .post-row{grid-template-columns:1fr;gap:12px}
  .post-row .go{display:none}
}

/* ---------- article ---------- */
article{padding:110px 0 40px}
.art-eyebrow{margin-bottom:18px}
article h1{font-family:var(--font-display);font-weight:500;letter-spacing:-.02em;
  font-size:clamp(34px,5.4vw,60px);line-height:1.04;margin-bottom:22px}
.art-meta{font-size:14px;opacity:.6;letter-spacing:.04em;padding-bottom:34px;border-bottom:1px solid var(--line);margin-bottom:44px}
article h2{font-family:var(--font-display);font-weight:400;font-size:clamp(24px,3.2vw,32px);
  letter-spacing:-.01em;margin:48px 0 16px;line-height:1.15}
article h3{font-family:var(--font-display);font-weight:400;font-size:clamp(19px,2.3vw,23px);
  letter-spacing:-.005em;margin:36px 0 12px;line-height:1.25;color:var(--text)}
article h2,article h3{scroll-margin-top:90px}

/* table of contents */
.toc{border:1px solid var(--line);border-radius:6px;padding:24px 26px;margin:8px 0 44px}
.toc-title{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:16px}
.toc ul{list-style:none;margin:0;padding:0;columns:2;column-gap:36px}
@media(max-width:600px){.toc ul{columns:1}}
.toc li{margin:0 0 11px;padding:0;break-inside:avoid}
.toc li::marker{content:""}
.toc a{opacity:.85;font-size:15px;line-height:1.35;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.toc a:hover{color:var(--gold);border-color:var(--gold);opacity:1}
article p{margin-bottom:22px;opacity:.92}
article ul,article ol{margin:0 0 22px 22px;opacity:.92}
article li{margin-bottom:12px;padding-left:6px}
article li::marker{color:var(--gold)}
article a.inline{color:var(--gold);border-bottom:1px solid rgba(200,162,75,.4)}
article a.inline:hover{border-color:var(--gold)}
article blockquote{font-family:var(--font-display);font-weight:400;font-size:clamp(24px,3.4vw,34px);
  line-height:1.25;letter-spacing:-.01em;margin:44px 0;padding-left:26px;border-left:2px solid var(--gold)}
article strong{color:var(--text)}

/* resumo executivo */
.summary{border:1px solid rgba(200,162,75,.35);border-radius:6px;padding:26px 28px;margin:8px 0 40px;background:rgba(200,162,75,.05)}
.summary-title{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:16px}
.summary ul{list-style:none;margin:0;padding:0}
.summary li{margin:0 0 12px;padding-left:18px;position:relative;font-size:16px;opacity:.92}
.summary li:last-child{margin-bottom:0}
.summary li::before{content:"";position:absolute;left:0;top:.55em;width:7px;height:7px;border-radius:50%;background:var(--gold)}

/* tabelas */
.tbl{overflow-x:auto;margin:6px 0 30px;border:1px solid var(--line);border-radius:6px}
.tbl table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.5}
.tbl th{font-family:var(--font-text);text-align:left;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);padding:14px 16px;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top;opacity:.9;min-width:140px}
.tbl tr:last-child td{border-bottom:0}

/* vídeos embedados (facade do YouTube) */
.video-embed{position:relative;aspect-ratio:16/9;background:#000;border:1px solid var(--line);border-radius:6px;overflow:hidden;margin:30px 0 12px}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.yt-facade{cursor:pointer}
.yt-facade img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.yt-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:68px;height:48px;border-radius:14px;background:rgba(10,10,10,.6);display:flex;align-items:center;justify-content:center;transition:background .3s;pointer-events:none}
.yt-play::after{content:"";border-style:solid;border-width:10px 0 10px 17px;border-color:transparent transparent transparent #F5F1E9;margin-left:3px}
.yt-facade:hover .yt-play{background:var(--gold)}
.yt-facade:hover .yt-play::after{border-left-color:var(--bg)}
.video-caption{font-size:13.5px;opacity:.65;margin:0 0 34px}
.video-caption a{color:var(--gold);border-bottom:1px solid rgba(200,162,75,.4)}
.video-caption a:hover{border-color:var(--gold)}

/* cards de vídeos em redes sociais (thumbnail + link externo) */
.social-card{margin:30px 0 40px}
.social-card .thumb-link{display:block;position:relative;max-width:320px;border:1px solid var(--line);border-radius:6px;overflow:hidden;transition:border-color .3s}
.social-card .thumb-link:hover{border-color:var(--gold)}
.social-card .thumb-link img{width:100%;height:auto;display:block}
.social-card .thumb-link .yt-play{transition:background .3s}
.social-card .thumb-link:hover .yt-play{background:var(--gold)}
.social-card .thumb-link:hover .yt-play::after{border-left-color:var(--bg)}
.social-card figcaption{margin-top:12px}
.social-card .src{font-size:14px;color:var(--gold);border-bottom:1px solid rgba(200,162,75,.4)}
.social-card .src:hover{border-color:var(--gold)}

/* CTA + related */
.art-cta{margin-top:70px;padding:44px;border:1px solid var(--line);border-radius:6px;text-align:center}
.art-cta h3{font-family:var(--font-display);font-weight:400;font-size:clamp(24px,3.4vw,34px);margin-bottom:24px;line-height:1.2}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--text);color:var(--bg);
  font-family:var(--font-text);font-size:15px;letter-spacing:.04em;padding:15px 30px;border-radius:100px;transition:background .3s,color .3s}
.btn:hover{background:var(--gold)}
.related{padding:60px 0 110px}
.related .eyebrow{margin-bottom:24px}
.related a{display:flex;justify-content:space-between;gap:20px;align-items:center;
  padding:22px 0;border-top:1px solid var(--line);transition:color .3s}
.related a:last-child{border-bottom:1px solid var(--line)}
.related a:hover{color:var(--gold)}
.related a span.t{font-family:var(--font-display);font-size:clamp(18px,2.4vw,24px)}
.related a span.c{font-size:12px;letter-spacing:.14em;text-transform:uppercase;opacity:.6;white-space:nowrap}

footer{border-top:1px solid var(--line);padding:40px;text-align:center;font-size:13px;opacity:.6}
footer a:hover{color:var(--gold)}