/* Layout: cotizador tipo terminal de metales — cifra principal y gráfico histórico arriba, tablas y calculadora en rejilla, espacios publicitarios integrados */
:root{
  --bg:#f3f4f1; --surface:#ffffff; --ink:#18201c; --muted:#5d6862; --line:#dde1db;
  --gold:#9a6b0a; --gold-soft:#f6ecd4; --up:#1f7a4d; --down:#b4362b; --on-accent:#ffffff;
  --f-display:"Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --f-body:"IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --f-mono:"IBM Plex Mono", ui-monospace, Menlo, monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#111613; --surface:#1a201c; --ink:#ecefe9; --muted:#9aa49e; --line:#2b332e;
  --gold:#e0b04a; --gold-soft:#2c2617; --up:#4cc38a; --down:#f07a6e; --on-accent:#111613; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#111613; --surface:#1a201c; --ink:#ecefe9; --muted:#9aa49e; --line:#2b332e;
  --gold:#e0b04a; --gold-soft:#2c2617; --up:#4cc38a; --down:#f07a6e; --on-accent:#111613; color-scheme:dark}

*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font:15px/1.55 var(--f-body);margin:0}
.wrap{max-width:1120px;margin:0 auto;padding-inline:20px;padding-block:0 48px}
header.top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding-block:18px;border-bottom:1px solid var(--line)}
.brand{font:700 1.35rem/1 var(--f-display);letter-spacing:-.01em;display:flex;align-items:center;gap:10px}
.brand i{width:22px;height:14px;background:var(--gold);clip-path:polygon(18% 0,82% 0,100% 100%,0 100%);display:inline-block}
select,input{font:500 .95rem var(--f-body);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:8px 10px}
select:focus-visible,input:focus-visible,button:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:28px;padding-block:28px 24px;align-items:start}
.eyebrow{font:500 .75rem var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.live{display:inline-flex;align-items:center;gap:6px;color:var(--up)}
.live::before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor;animation:pulse 2s infinite}
.live.demo{color:var(--down)}
@keyframes pulse{50%{opacity:.3}}
.price{font:700 clamp(2.4rem,8vw,4.6rem)/1 var(--f-display);letter-spacing:-.03em;margin:12px 0 6px;font-variant-numeric:tabular-nums}
.price small{font:500 1rem var(--f-mono);color:var(--muted);letter-spacing:0;margin-left:6px}
.change{font:500 .95rem var(--f-mono)}
.change.up{color:var(--up)} .change.down{color:var(--down)}

.karat-pick{margin-top:22px}
.unit-pick{margin-top:14px}
.karat-pick > span{display:block;font:500 .72rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font:500 .85rem var(--f-mono);padding:7px 11px;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;font-variant-numeric:tabular-nums}
.chip:hover{border-color:var(--gold)}
.chip[aria-pressed="true"]{background:var(--gold);border-color:var(--gold);color:var(--on-accent)}
.chip small{opacity:.7;margin-left:4px;font-size:.72rem}

.spark-wrap{display:grid;gap:8px;min-width:0}
.badge{justify-self:start;display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:var(--up);color:var(--on-accent);font:600 .78rem var(--f-mono);letter-spacing:.12em;text-transform:uppercase}
.badge::before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor;animation:pulse 1s infinite}
.badge.demo{background:var(--down)}
@media (prefers-reduced-motion:reduce){.badge::before,.live::before{animation:none}}
.spark{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px;min-width:0}
.spark-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.spark h3{margin:0;font:500 .75rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.ranges{display:flex;gap:2px;background:var(--bg);border-radius:6px;padding:2px}
.ranges button{font:500 .78rem var(--f-mono);border:0;background:transparent;color:var(--muted);padding:5px 10px;border-radius:4px;cursor:pointer}
.ranges button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.12)}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:8px}
.stats div{min-width:0}
.stats span{display:block;font:500 .68rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.stats b{font:500 .9rem var(--f-mono);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.stats b.up{color:var(--up)} .stats b.down{color:var(--down)}
.spark canvas{width:100%;height:190px;display:block;touch-action:pan-y;cursor:crosshair}
.note{margin:8px 0 0;font-size:.78rem;color:var(--muted)}

.units{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.unit{padding:16px 14px;border-right:1px solid var(--line);min-width:0}
.unit:last-child{border-right:0}
.unit span{display:block;font:500 .72rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.unit b{font:600 1.2rem var(--f-mono);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}

.ad:empty{display:none}
.ad{margin-block:24px;border:1px dashed var(--line);border-radius:8px;min-height:90px;display:grid;place-items:center;color:var(--muted);font:500 .75rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase}

.grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:24px;margin-top:8px}
section.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:20px;min-width:0}
h2{font:700 1.3rem/1.2 var(--f-display);margin:0 0 4px;text-wrap:balance}
.sub{color:var(--muted);margin:0 0 14px;font-size:.9rem}
.tbl{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
th,td{text-align:right;padding:8px 6px;border-bottom:1px solid var(--line);white-space:nowrap}
th:first-child,td:first-child{text-align:left}
th{font:500 .72rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
td{font-family:var(--f-mono);font-size:.9rem}
tr.sel td{background:var(--gold-soft)}
td .k{display:inline-block;min-width:44px;padding:2px 6px;border-radius:4px;background:var(--gold-soft);color:var(--gold);font-weight:500;text-align:center}

.calc{display:grid;gap:12px}
.calc .row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.calc label{display:grid;gap:4px;font:500 .78rem var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.result{margin-top:4px;padding:16px;border-radius:8px;background:var(--gold-soft)}
.result span{font:500 .72rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.result b{display:block;font:700 1.9rem/1.1 var(--f-display);color:var(--gold);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.result p{margin:6px 0 0;font-size:.82rem;color:var(--muted)}

.silver{margin-top:24px}
.faq{margin-top:32px;max-width:68ch}
.faq details{border-bottom:1px solid var(--line);padding-block:12px}
.faq summary{cursor:pointer;font-weight:600}
.faq p{color:var(--muted);margin:8px 0 0}
footer{margin-top:40px;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:.8rem}

.market{margin-top:32px;padding-top:28px;border-top:2px solid var(--ink)}
.market-head{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.market-head h2{font-size:clamp(1.4rem,3.6vw,2rem);margin-top:6px;max-width:24ch}
.stamp{font:500 .75rem var(--f-mono);color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:4px 10px}
.market-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:28px}
.market-text{min-width:0}
.lead{font-size:1.05rem;margin:0 0 18px;max-width:65ch}
.lead b{font-family:var(--f-mono);color:var(--down)}
.forces{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.force{border-top:3px solid var(--up);padding-top:10px;min-width:0}
.force.down{border-top-color:var(--down)}
.force h3,.proj h3{font:500 .75rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.force ul{margin:0;padding-left:18px;display:grid;gap:8px;font-size:.92rem}
.levels{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}
.levels span{display:block;font:500 .7rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.levels b{font:600 1rem var(--f-mono)}
.tag{display:inline-block;font-size:.85rem !important;padding:2px 8px;border-radius:4px;background:var(--gold-soft);color:var(--gold)}
.proj{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:18px;min-width:0}
.proj table td small{display:block;font:400 .72rem var(--f-body);color:var(--muted);white-space:normal}
.proj td:first-child{font-family:var(--f-body);font-weight:600;white-space:normal}
.pct{font-weight:500}.pct.up{color:var(--up)}.pct.down{color:var(--down)}
.sc-title{margin-top:18px !important}
.scen{display:grid;gap:8px}
.sc{border-left:3px solid var(--muted);padding:2px 0 2px 10px}
.sc.up{border-left-color:var(--up)} .sc.down{border-left-color:var(--down)} .sc.mid{border-left-color:var(--gold)}
.sc b{font-size:.9rem}
.sc p{margin:2px 0 0;font-size:.85rem;color:var(--muted)}
.sec{font:500 .75rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:22px 0 10px}
.factors table td{white-space:normal;text-align:left;vertical-align:top;font-family:var(--f-body);font-size:.88rem;padding:10px 8px}
.factors table th{text-align:left}
.factors td:first-child{min-width:130px}
.factors td:last-child{white-space:nowrap}
.eff{display:inline-block;font:500 .75rem var(--f-mono);padding:3px 8px;border-radius:4px;border:1px solid currentColor}
.eff.up{color:var(--up)} .eff.down{color:var(--down)} .eff.mid{color:var(--gold)}
.balance{margin-top:14px}
.balance .bar{display:flex;height:10px;border-radius:5px;overflow:hidden;gap:2px}
.balance .bar i{display:block}
.balance .bar .up{background:var(--up)} .balance .bar .mid{background:var(--gold)} .balance .bar .down{background:var(--down)}
.balance p{margin:8px 0 0;font-size:.85rem;color:var(--muted)}
.market-grid.lower{margin-top:24px;padding-top:4px;border-top:1px solid var(--line)}
.dates{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.dates li{display:grid;grid-template-columns:84px minmax(0,1fr);gap:12px;align-items:start}
.dates time{font:600 .82rem var(--f-mono);color:var(--gold);background:var(--gold-soft);border-radius:4px;padding:4px 6px;text-align:center}
.dates b{font-size:.92rem}
.dates p{margin:2px 0 0;font-size:.85rem;color:var(--muted)}
.latam{min-width:0}
.latam ul{margin:12px 0 0;padding-left:18px;display:grid;gap:8px;font-size:.9rem}
.margin{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px}
.margin span{display:block;font:500 .7rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.margin b{display:block;font:700 1.7rem/1.2 var(--f-display);color:var(--up);font-variant-numeric:tabular-nums}
.margin small{color:var(--muted);font-size:.78rem}
.disclaimer{margin:16px 0 0;font-size:.78rem;color:var(--muted);max-width:80ch}

@media (max-width:820px){
  .market-grid,.forces{grid-template-columns:minmax(0,1fr)}
  .hero,.grid{grid-template-columns:minmax(0,1fr)}
  .units{grid-template-columns:repeat(2,minmax(0,1fr))}
  .unit:nth-child(2){border-right:0}
  .unit:nth-child(-n+2){border-bottom:1px solid var(--line)}
}

/* ===== Sitio: navegación, artículos y pie ===== */
a{color:var(--gold)}
a:hover{text-decoration-thickness:2px}
.brand{color:var(--ink);text-decoration:none}
.nav{display:flex;flex-wrap:wrap;gap:4px 16px;align-items:center}
.nav a{color:var(--ink);text-decoration:none;font:500 .9rem var(--f-body);padding-block:4px;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{border-bottom-color:var(--gold)}
.top-right{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.intro{padding-block:28px 0}
.intro h1{font:700 clamp(1.6rem,4.6vw,2.4rem)/1.15 var(--f-display);letter-spacing:-.02em;margin:0 0 8px;text-wrap:balance}
.intro p{margin:0;color:var(--muted);max-width:68ch}
.crumbs{font:500 .75rem var(--f-mono);color:var(--muted);padding-top:18px;display:flex;gap:6px;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.hero{padding-block:20px 24px}

.local{margin-top:32px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.prose{max-width:70ch;min-width:0}
.prose h2{margin-top:28px}
.prose h3{font:600 1.05rem/1.3 var(--f-body);margin:22px 0 6px}
.prose p,.prose li{font-size:1rem;line-height:1.7}
.prose ul,.prose ol{padding-left:22px}
.prose table{margin-block:12px}
.prose .tbl{border:1px solid var(--line);border-radius:8px;padding:4px 10px;background:var(--surface)}
.prose .callout{background:var(--gold-soft);border-radius:8px;padding:14px 16px;margin-block:16px}
.prose .callout p{margin:0}
.prose code{font-family:var(--f-mono);font-size:.9em;background:var(--gold-soft);padding:1px 5px;border-radius:4px}
.formula{font:500 .95rem var(--f-mono);background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:14px 16px;overflow-x:auto;white-space:pre}
.side{display:grid;gap:16px;min-width:0;position:sticky;top:calc(env(safe-area-inset-top,0px) + 16px)}
.side .box{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px}
.side h3{font:500 .75rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}
.side ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.side a{text-decoration:none;font-weight:500}
.cta{display:inline-block;background:var(--gold);color:var(--on-accent);text-decoration:none;font-weight:600;padding:10px 16px;border-radius:6px}
.meta{font:500 .78rem var(--f-mono);color:var(--muted)}
article.prose{padding-top:20px}
article.prose h1{font:700 clamp(1.7rem,5vw,2.6rem)/1.15 var(--f-display);letter-spacing:-.02em;margin:6px 0 12px;text-wrap:balance}
article.prose .lede{font-size:1.15rem;color:var(--muted)}

.guides{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin-top:12px}
.guides a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 16px;text-decoration:none;color:var(--ink)}
.guides a:hover{border-color:var(--gold)}
.guides b{display:block;font:600 1rem/1.3 var(--f-body);margin-bottom:4px}
.guides span{font-size:.85rem;color:var(--muted)}
.section-title{margin-top:36px}

footer.site{margin-top:48px;padding-block:28px 12px;border-top:1px solid var(--line);color:var(--muted);font-size:.85rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px}
footer.site h4{font:500 .72rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase;margin:0 0 8px;color:var(--ink)}
footer.site ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
footer.site a{color:var(--muted);text-decoration:none}
footer.site a:hover{color:var(--ink)}
.legal-note{grid-column:1/-1;border-top:1px solid var(--line);padding-top:14px;font-size:.78rem}

@media (max-width:820px){
  .local{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
}
.price{font-size:clamp(2.2rem,6.2vw,4.2rem);overflow-wrap:anywhere}
.price small{display:block;margin:8px 0 0}
.calc .row{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.calc select,.calc input{width:100%;min-width:0}
.calc,.calc label,.result{min-width:0}