:root{
  --bg:#050a14; --bg-2:#070f20; --bg-3:#0a1224;
  --gold:#C5A963; --gold-lt:#D8BE80; --gold-dk:#A68949;
  --text:#c2c9d8; --text-dim:#9aa3b6; --text-mute:#6a7488;
  --head:#f1f3f8; --line:rgba(255,255,255,.08);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Outfit',system-ui,-apple-system,sans-serif;font-weight:300;line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none;touch-action:manipulation}
img{max-width:100%}
::selection{background:var(--gold);color:#0a0f1a}
::-webkit-scrollbar{width:9px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:#22304a;border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:var(--gold)}

/* ---------- header ---------- */
.hd{position:fixed;top:0;left:0;right:0;z-index:60;background:rgba(5,10,20,.88);backdrop-filter:blur(16px);border-bottom:1px solid rgba(197,169,99,.16)}
.hd-wrap{max-width:1000px;margin:0 auto;padding:12px clamp(20px,5vw,40px);display:flex;align-items:center;justify-content:space-between;gap:20px}
.hd-wrap img{height:64px;width:auto;object-fit:contain;opacity:.95;display:block}
.hd-back{font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;font-weight:500;color:var(--text-dim);transition:color .3s;white-space:nowrap}
.hd-back:hover{color:var(--gold-lt)}

/* ---------- progress ---------- */
.progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:70;background:linear-gradient(90deg,var(--gold-dk),var(--gold-lt));transition:width .1s linear}

/* ---------- article shell ---------- */
main{max-width:760px;margin:0 auto;padding:150px clamp(20px,5vw,24px) 0;position:relative;overflow-x:clip}
.glow{position:absolute;top:-120px;left:0;right:0;width:min(900px,100%);max-width:100%;margin:0 auto;height:520px;background:radial-gradient(ellipse at center,rgba(197,169,99,.09),transparent 68%);pointer-events:none;z-index:-1}

.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-mute);margin-bottom:30px}
.crumbs a:hover{color:var(--gold-lt)}
.crumbs .cur{color:var(--text-dim)}

.eyebrow{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.eyebrow .pip{width:38px;height:1px;background:var(--gold);flex-shrink:0}
.eyebrow span{font-size:10.5px;letter-spacing:.26em;text-transform:uppercase;color:var(--gold);font-weight:500}

h1{margin:0 0 24px;font-family:'Playfair Display',serif;font-weight:500;font-size:clamp(2rem,4.6vw,3.1rem);line-height:1.18;letter-spacing:-.01em;color:var(--head)}
h1 em{font-style:italic;color:var(--gold-lt)}

.meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--text-mute);margin-bottom:40px;padding-bottom:28px;border-bottom:1px solid var(--line)}
.meta .dot{color:var(--gold);opacity:.6}

.lede{font-size:1.14rem;font-weight:300;line-height:1.75;color:#dfe4ef;margin:0 0 42px}

article h2{margin:52px 0 18px;font-family:'Playfair Display',serif;font-weight:500;font-size:clamp(1.4rem,2.6vw,1.7rem);line-height:1.3;color:var(--head)}
article h3{margin:34px 0 12px;font-family:'Outfit',sans-serif;font-weight:500;font-size:1.05rem;letter-spacing:.01em;color:#e6e9f0}
article p{margin:0 0 20px;font-size:1rem;font-weight:300;line-height:1.85;color:var(--text)}
article strong{color:var(--head);font-weight:600}
article em{color:var(--gold-lt);font-style:italic}

/* ---------- listas ---------- */
.steps{list-style:none;counter-reset:s;margin:30px 0;padding:0}
.steps li{position:relative;counter-increment:s;padding:20px 24px 20px 62px;margin-bottom:12px;background:var(--bg-3);border:1px solid var(--line);border-left:2px solid rgba(197,169,99,.5);transition:border-color .4s,background .4s}
.steps li:hover{border-left-color:var(--gold);background:#0c1730}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:22px;top:20px;font-size:11px;font-weight:600;letter-spacing:.1em;color:var(--gold)}
.steps li strong{display:block;margin-bottom:5px;color:var(--head);font-weight:600;font-size:.97rem}
.steps li span{display:block;font-size:.95rem;font-weight:300;line-height:1.75;color:var(--text-dim)}

.marks{list-style:none;margin:28px 0;padding:0}
.marks li{position:relative;padding:0 0 0 30px;margin-bottom:18px;font-size:.98rem;font-weight:300;line-height:1.8;color:var(--text-dim)}
.marks li::before{content:"";position:absolute;left:4px;top:13px;width:9px;height:1px;background:var(--gold)}
.marks li strong{color:var(--head);font-weight:600}

/* ---------- callout ---------- */
.callout{margin:38px 0;padding:26px 30px;background:linear-gradient(120deg,rgba(197,169,99,.09),rgba(197,169,99,.02));border:1px solid rgba(197,169,99,.24);border-left:2px solid var(--gold)}
.callout p{margin:0;font-size:1.02rem;font-weight:300;line-height:1.75;color:#e6e9f0}
.callout strong{color:var(--gold-lt)}

.disclaimer{margin-top:44px;font-size:.84rem;font-style:italic;font-weight:300;line-height:1.7;color:var(--text-mute)}

.byline{display:flex;align-items:center;gap:18px;margin-top:40px;padding-top:30px;border-top:1px solid var(--line)}
.byline img{width:58px;height:58px;border-radius:50%;object-fit:cover;object-position:top;flex-shrink:0;border:1px solid rgba(197,169,99,.35)}
.byline div{font-size:.9rem;font-weight:300;line-height:1.65;color:var(--text-dim)}
.byline strong{display:block;color:var(--head);font-weight:600;font-size:.97rem;letter-spacing:.01em}
.byline .oab{display:block;color:var(--gold);font-size:11px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:5px}

/* ---------- cta ---------- */
.cta{margin:70px 0 0;padding:clamp(34px,5vw,50px) clamp(24px,5vw,44px);text-align:center;background:var(--bg-2);border:1px solid rgba(197,169,99,.26);position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%,rgba(197,169,99,.13),transparent 62%);pointer-events:none}
.cta h2{position:relative;margin:0 0 14px;font-family:'Playfair Display',serif;font-weight:500;font-size:clamp(1.5rem,3.2vw,2rem);line-height:1.22;color:var(--head)}
.cta h2 em{font-style:italic;color:var(--gold-lt)}
.cta p{position:relative;max-width:480px;margin:0 auto 30px;font-size:.98rem;font-weight:300;line-height:1.7;color:var(--text-dim)}
.cta-btn{position:relative;display:inline-flex;align-items:center;gap:10px;padding:16px 34px;background:linear-gradient(120deg,var(--gold-lt),var(--gold) 55%,var(--gold-dk));color:#0a0f1a;font-size:11.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;box-shadow:0 18px 50px -18px rgba(197,169,99,.7);transition:transform .4s cubic-bezier(.16,1,.3,1),box-shadow .4s}
.cta-btn:hover{transform:translateY(-3px);box-shadow:0 26px 60px -16px rgba(197,169,99,.85)}

/* ---------- relacionados ---------- */
.related{margin-top:80px;padding-top:40px;border-top:1px solid var(--line)}
.related > .lbl{display:block;font-size:10.5px;letter-spacing:.26em;text-transform:uppercase;color:var(--gold);font-weight:500;margin-bottom:26px}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.rel-card{display:block;padding:24px 26px;background:var(--bg-3);border:1px solid var(--line);transition:border-color .4s,transform .4s cubic-bezier(.16,1,.3,1),background .4s}
.rel-card:hover{border-color:rgba(197,169,99,.45);transform:translateY(-3px);background:#0c1730}
.rel-card .tag{display:block;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:9px}
.rel-card strong{display:block;font-family:'Playfair Display',serif;font-weight:500;font-size:1.04rem;line-height:1.4;color:var(--head)}

.back-blog{display:inline-flex;align-items:center;gap:9px;margin:56px 0 0;padding-bottom:6px;font-size:10.5px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:#e6e9f0;border-bottom:1px solid var(--gold);transition:color .3s}
.back-blog:hover{color:var(--gold-lt)}

/* ---------- footer ---------- */
.ft{margin-top:100px;padding:52px clamp(20px,5vw,24px);background:var(--bg-2);border-top:1px solid var(--line);text-align:center}
.ft img{height:72px;width:auto;object-fit:contain;opacity:.85;margin-bottom:24px}
.ft p{max-width:640px;margin:0 auto;font-size:12px;font-weight:300;line-height:1.75;color:var(--text-mute)}
.ft a{color:var(--text-dim);transition:color .3s}
.ft a:hover{color:var(--gold-lt)}

/* ---------- reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity 1s cubic-bezier(.16,1,.3,1),transform 1s cubic-bezier(.16,1,.3,1)}
[data-reveal].on{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){[data-reveal]{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

@media (max-width:640px){
  .hd-back,.eyebrow span,.meta,.related > .lbl,.back-blog,.rel-card .tag,.crumbs{font-size:11px;letter-spacing:.16em}
  main{padding-top:118px}
  .hd-wrap img{height:52px}
  .hd-back .lg{display:none}
  .byline{flex-direction:column;align-items:flex-start;gap:14px}
}