:root{
  --bg:#0E0D0B;--bg2:#14120F;--bg3:#1B1814;--ink:#F4EFE6;--ink2:#D9D1C3;--mute:#A8A196;
  --line:rgba(244,239,230,.14);--cu:#C98A5A;--cu2:#E0A57A;--sn:#A7B0B8;
  --pad:clamp(20px,4vw,56px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Archivo',system-ui,sans-serif;font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video{display:block;max-width:100%}
a{color:var(--cu2);text-decoration:none}
::selection{background:var(--cu);color:#120E0A}
.mono{font-family:'IBM Plex Mono',monospace;letter-spacing:.12em;text-transform:uppercase;font-size:12.5px}
.serif{font-family:'Newsreader',serif}
.wrap{padding:0 var(--pad);max-width:1440px;margin:0 auto}
.kick{display:flex;align-items:center;gap:16px;color:var(--mute)}
.kick b{color:var(--cu2);font-weight:500}
.kick i{width:36px;flex:none;height:1px;background:var(--cu)}
.kick span{color:var(--cu2)}
h2{margin:28px 0 clamp(28px,4vw,56px);font-weight:600;font-stretch:78%;font-size:clamp(44px,7vw,112px);line-height:.9;letter-spacing:-.03em;max-width:13ch}
h2 em{font-family:'Newsreader',serif;font-weight:300;font-style:italic;font-stretch:100%;color:#EADFC8}
h3{margin:0 0 8px;font-weight:600;font-stretch:85%;font-size:clamp(22px,2vw,28px);line-height:1.1}
p{margin:0 0 16px}
.lead{font-family:'Newsreader',serif;font-size:clamp(20px,1.9vw,26px);line-height:1.45;color:var(--ink2);max-width:40ch}
section{padding:clamp(88px,11vw,160px) 0;border-top:1px solid var(--line)}
.rv{opacity:0;transform:translateY(24px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}


/* opciones de tipografía de títulos (?f=1 Montserrat · ?f=2 Cormorant · ?f=3 Big Shoulders) */
body.f1 .hero h1,body.f1 h2{font-family:'Montserrat',sans-serif;font-weight:800;font-stretch:100%;letter-spacing:-.035em}
body.f1 .hero h1{font-size:clamp(44px,min(8.2vw,13vh),150px);line-height:.95}
body.f1 h2{font-size:clamp(38px,5.6vw,92px);line-height:.98}
body.f1 .hero h1 .s,body.f1 h2 em{font-family:'Montserrat',sans-serif;font-style:normal;font-weight:300;letter-spacing:-.03em;color:#C4CBD1}
body.f2 .hero h1,body.f2 h2{font-family:'Cormorant Garamond',serif;font-weight:600;font-stretch:100%;letter-spacing:-.01em}
body.f2 .hero h1{font-size:clamp(56px,min(10vw,16vh),176px);line-height:.9}
body.f2 h2{font-size:clamp(48px,7vw,116px);line-height:.92}
body.f2 .hero h1 .s,body.f2 h2 em{font-family:'Cormorant Garamond',serif;font-style:italic;font-weight:400;color:#C4CBD1}
body.f3 .hero h1,body.f3 h2{font-family:'Big Shoulders Display',sans-serif;font-weight:800;font-stretch:100%;letter-spacing:.005em;text-transform:uppercase}
body.f3 .hero h1{font-size:clamp(56px,min(10vw,16vh),176px);line-height:.88}
body.f3 h2{font-size:clamp(46px,6.6vw,110px);line-height:.9}
body.f3 .hero h1 .s,body.f3 h2 em{font-family:'Big Shoulders Display',sans-serif;font-style:normal;font-weight:300;color:#C4CBD1}

/* revisión */
.ribbon{position:fixed;left:50%;bottom:14px;transform:translateX(-50%);z-index:60;background:rgba(20,18,15,.92);border:1px solid var(--line);padding:8px 14px;color:var(--mute);backdrop-filter:blur(8px);white-space:nowrap}
.ph{color:var(--cu2);opacity:.85}

/* header */
header{position:fixed;inset:0 0 auto 0;z-index:50;background:linear-gradient(180deg,rgba(14,13,11,.85),rgba(14,13,11,0));display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px var(--pad);transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
header.solid{background:rgba(14,13,11,.9);backdrop-filter:blur(10px);border-color:var(--line)}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand img{width:56px;height:56px;filter:drop-shadow(0 2px 6px rgba(0,0,0,.45))}
.brand b{display:block;font-weight:800;font-size:18px;letter-spacing:.06em;line-height:1}
.brand small{display:block;font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.3em;color:var(--sn);margin-top:5px}
nav.main{display:flex;gap:26px}
nav.main a{color:var(--ink2);font-size:15px}
nav.main a:hover{color:var(--cu2)}
.hright{display:flex;align-items:center;gap:10px}
.lang{display:flex;border:1px solid rgba(244,239,230,.28);height:40px}
.lang button{background:none;border:0;color:var(--mute);padding:0 13px;cursor:pointer;font:500 13px 'IBM Plex Mono',monospace;letter-spacing:.1em}
.lang button.on{color:var(--cu2)}
.burger{display:none;background:none;border:1px solid rgba(244,239,230,.28);height:40px;padding:0 14px;color:var(--ink);cursor:pointer}
.menu{position:fixed;inset:0;z-index:45;background:var(--bg);padding:110px var(--pad) 40px;display:none;flex-direction:column;gap:4px}
.menu.open{display:flex}
.menu a{color:var(--ink);font-size:34px;font-weight:500;font-stretch:80%;padding:12px 0;border-top:1px solid var(--line)}
@media (max-width:980px){nav.main{display:none}.burger{display:block}}
.brand span{white-space:nowrap}
@media (max-width:520px){.brand small{letter-spacing:.14em;font-size:9px}.brand b{font-size:15px}.brand img{width:40px;height:40px}.brand{gap:9px}.lang button{padding:0 9px}.burger{padding:0 10px}}

/* hero */
.hero{position:relative;min-height:100svh;overflow:hidden;border:0;padding:0;display:flex}
.hero .mask{position:absolute;inset:0;overflow:hidden;will-change:clip-path}
.hero .bg{position:absolute;inset:-6% 0 -6% 0;background:url(../img/portada.webp) 62% 50%/cover no-repeat;will-change:transform}
.hero h1 .ln{display:block;overflow:hidden;padding-bottom:.06em}
.hero h1 .hl{display:block}
.intro .hero .mask{clip-path:inset(16% 12% 24% 12%)}
.intro .hero .bg{transform:scale(1.2)}
.intro .hero .hl{transform:translate3d(0,108%,0)}
.intro .hero .hf{opacity:0;transform:translate3d(0,16px,0)}
@media (max-width:760px){
  .hero .bg{background-image:url(../img/portada-movil.webp);background-position:50% 55%}
  .hero .mask{bottom:auto;height:62svh}
  .hero .shade{bottom:auto;height:62svh;background:linear-gradient(180deg,rgba(14,13,11,.7) 0%,rgba(14,13,11,0) 22%,rgba(14,13,11,0) 62%,rgba(14,13,11,1) 100%)}
  .hero{background:var(--bg);min-height:0!important}
  .hero .in{justify-content:flex-start;padding-top:calc(60svh - 70px)!important}
}
@keyframes kb{from{transform:scale(1.12)}to{transform:scale(1.02)}}
.hero .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,13,11,.75) 0%,rgba(14,13,11,.1) 26%,rgba(14,13,11,.25) 50%,rgba(14,13,11,.95) 100%)}
.hero .in{position:relative;z-index:1;flex:1;display:flex;flex-direction:column;justify-content:flex-end;padding:120px var(--pad) clamp(28px,4vw,48px)}
.hero h1{margin:18px 0 0;font-weight:600;font-stretch:76%;font-size:clamp(52px,min(10.5vw,16vh),180px);line-height:.88;letter-spacing:-.03em}
.hero h1 span{display:block}
.hero h1 .s{font-family:'Newsreader',serif;font-style:italic;font-weight:300;font-stretch:100%;color:#EADFC8}
.hero .row{display:flex;flex-wrap:wrap;gap:24px 56px;justify-content:space-between;align-items:flex-end;margin-top:clamp(20px,3vw,36px)}
.hero .row .lead{color:#E6DECF;max-width:46ch}
.btns{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:12px;height:56px;padding:0 26px;font-weight:600;font-size:16px;cursor:pointer;border:0}
.btn.p{background:var(--cu);color:#140F0A}
.btn.p:hover{background:var(--cu2)}
.btn.g{border:1px solid rgba(244,239,230,.6);color:var(--ink);background:none}
.btn.g:hover{border-color:var(--cu2);color:var(--cu2)}
.hero .foot{margin-top:clamp(24px,4vw,44px);padding-top:14px;border-top:1px solid rgba(244,239,230,.22);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 24px;color:#C2BAAD}

/* ticker */
.tick{display:flex;align-items:stretch;border-bottom:1px solid var(--line);background:#0B0A08;min-height:52px}
.tick .lab{flex:none;display:flex;align-items:center;gap:10px;padding:0 18px;border-right:1px solid var(--line);color:var(--cu2)}
.tick .lab i{width:7px;height:7px;border-radius:50%;background:var(--cu2);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.25}}
.tick .tv{flex:1;min-width:0}

/* about */
.about{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(32px,6vw,96px);align-items:start}
.about .ph-img{position:relative;aspect-ratio:4/5;overflow:hidden}
.about .ph-img img{width:100%;height:100%;object-fit:cover}
.cifras{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:40px;border-top:1px solid var(--line)}
.cifras div{padding:20px 16px 0 0}
.cifras b{display:block;font-weight:600;font-stretch:80%;font-size:clamp(34px,4vw,54px);line-height:1;color:var(--ink)}
.cifras span{display:block;margin-top:8px;color:var(--mute);font-size:15px}
figcaption{margin-top:12px;color:var(--mute);font-size:15px}
figcaption b{color:var(--cu2);font-weight:500;margin-right:12px}
@media (max-width:860px){.about{grid-template-columns:1fr}.cifras{grid-template-columns:1fr 1fr 1fr}.cifras b{font-size:27px}.cifras span{font-size:13.5px}}

/* estaño */
.usos{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.usos div{padding:26px 20px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.usos .n{color:var(--cu2)}
.usos h3{margin-top:28px}
.usos p{color:var(--mute);font-size:16px;margin:0}
@media (max-width:980px){.usos{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.usos{grid-template-columns:1fr}}
.sym{display:flex;align-items:center;gap:22px;margin:0 0 40px}
.sym .el{width:118px;height:118px;flex:none;border:1px solid var(--sn);display:flex;flex-direction:column;justify-content:space-between;padding:10px 12px;background:linear-gradient(135deg,rgba(167,176,184,.16),rgba(167,176,184,.03))}
.sym .el small{font:500 12px 'IBM Plex Mono',monospace;color:var(--sn)}
.sym .el b{font-size:50px;font-weight:600;line-height:1}

/* proceso */
.proc{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.proc figure{margin:0}
.proc .im{aspect-ratio:3/4;overflow:hidden;background:var(--bg3)}
.proc .im img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s}
.proc figure:hover img{transform:scale(1.05)}
.proc .n{color:var(--cu2);margin:16px 0 6px}
.proc p{color:var(--mute);font-size:16px}
@media (max-width:980px){.proc{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.proc{grid-template-columns:1fr}.proc .im{aspect-ratio:4/3}}

/* etapas: corte geológico que avanza con el scroll */
.proy{padding:0;border-top:1px solid var(--line)}
.proy{height:320vh;position:relative}
.proy-pin{position:sticky;top:0;min-height:100vh;display:flex;align-items:center;padding:110px 0 50px}
.proy-pin .wrap{width:100%}
.proy h2{margin-bottom:24px}
.corte{position:relative;height:clamp(120px,20vh,210px);margin:0 0 26px}
.corte svg{width:100%;height:100%;display:block}
.corte .tl-linea{transition:none}
.corte .sn-mark{opacity:0;transition:opacity .6s}
.corte.llego .sn-mark{opacity:1}
.corte-tag{position:absolute;right:0;bottom:-22px;color:var(--mute);font-size:11px}
.etapas{position:relative;display:grid;grid-template-columns:repeat(6,1fr);gap:0;margin-top:34px}
.etapas:before{content:'';position:absolute;left:0;right:0;top:15px;height:2px;background:var(--line)}
.etapas .bar{position:absolute;left:0;top:15px;height:2px;background:var(--cu);width:0}
.et{position:relative;padding:0 16px 0 0;opacity:.45;transition:opacity .5s}
.et.on{opacity:1}
.et .dot{width:32px;height:32px;border-radius:50%;border:2px solid var(--line);background:var(--bg2);position:relative;z-index:1;display:flex;align-items:center;justify-content:center;font:500 12px 'IBM Plex Mono',monospace;color:var(--mute);transition:all .4s}
.et.on .dot{border-color:var(--cu);color:var(--cu2)}
.et.now.on .dot{background:var(--cu);color:#140F0A;box-shadow:0 0 0 8px rgba(201,138,90,.18);animation:latido 2s infinite}
@keyframes latido{50%{box-shadow:0 0 0 14px rgba(201,138,90,.06)}}
.et .tag{margin:20px 0 8px;color:var(--mute)}
.et.now .tag{color:var(--cu2)}
.et h3{font-size:clamp(18px,1.5vw,23px)}
.et p{color:var(--mute);font-size:15.5px}
.vision{margin-top:30px;color:var(--ink2);font-size:17px;border-left:2px solid var(--cu);padding-left:16px;max-width:70ch}
@media (max-width:900px){
  .proy{height:260vh}
  .proy-pin{padding:70px 0 16px;align-items:flex-start}
  .proy h2{margin:12px 0 12px;font-size:clamp(34px,10vw,46px)}
  .corte{height:74px;margin:0 0 4px}
  .corte-tag{display:none}
  .etapas{grid-template-columns:1fr;gap:12px;padding-left:44px;margin-top:14px}
  .et h3{font-size:16.5px;margin:0}
  .et p{display:none}
  .et.now p{display:block;font-size:14px;margin:4px 0 0}
  .et .dot{width:26px;height:26px;font-size:11px}
  .vision{font-size:14.5px;margin-top:14px}
  .etapas:before{left:12px;right:auto;top:0;bottom:0;width:2px;height:auto}
  .etapas .bar{left:12px;top:0;width:2px!important;height:0}
  .et .dot{position:absolute;left:-44px;top:0}
  .et .tag{margin:0 0 2px;font-size:10.5px}
}
@media (prefers-reduced-motion:reduce){.proy{height:auto}.proy-pin{position:static}.et{opacity:1}}

/* operación */
.op{display:grid;grid-template-columns:1.6fr 1fr;gap:clamp(28px,5vw,72px);align-items:center}
.op .im{overflow:hidden}
.op .im img{width:100%;aspect-ratio:16/9;object-fit:cover}
.op ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.op li{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.op li span{color:var(--cu2);flex:none;width:36px}
.op li b{display:block;font-weight:600;font-size:19px}
.op li small{color:var(--mute);font-size:15.5px}
@media (max-width:900px){.op{grid-template-columns:1fr}}

/* equipos */
.eq{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.eq figure{margin:0;border:1px solid var(--line);background:var(--bg2)}
.eq .im{aspect-ratio:4/3;overflow:hidden;background:var(--bg3)}
.eq .im img{width:100%;height:100%;object-fit:cover}
.eq .tx{padding:18px 18px 20px}
.eq .tx .mono{color:var(--cu2)}
.eq .tx p{color:var(--mute);font-size:16px;margin:6px 0 0}
@media (max-width:900px){.eq{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.eq{grid-template-columns:1fr}}

/* campamento */
.camp{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.camp img{width:100%;aspect-ratio:4/3;object-fit:cover}
@media (max-width:760px){.camp{grid-template-columns:1fr}}

/* galería */
.gal{columns:4 260px;column-gap:14px}
.gal figure{margin:0 0 14px;break-inside:avoid;cursor:zoom-in;overflow:hidden;background:var(--bg3)}
.gal img{width:100%;transition:transform 1s,filter .4s;filter:saturate(.92)}
.gal figure{position:relative}
.gal figure:hover img{transform:scale(1.04);filter:none}
.gal figcaption{position:absolute;left:0;right:0;bottom:0;margin:0;padding:28px 12px 10px;font-size:14px;line-height:1.35;color:#F4EFE6;background:linear-gradient(transparent,rgba(0,0,0,.78));opacity:0;transition:opacity .35s}
.gal figure:hover figcaption{opacity:1}
@media (hover:none){.gal figcaption{opacity:1;font-size:12.5px;padding:22px 8px 7px}}

/* videos */
.vids{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.vids figure{margin:0;position:relative;background:#000;overflow:hidden;cursor:pointer}
.vids video{width:100%;aspect-ratio:9/14;object-fit:cover}
.vids .w video{aspect-ratio:9/14}
.vids figcaption{position:absolute;left:0;right:0;bottom:0;margin:0;padding:30px 12px 12px;background:linear-gradient(transparent,rgba(0,0,0,.8));color:#E6DECF}
.vids .play{position:absolute;top:12px;right:12px;width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.6);display:flex;align-items:center;justify-content:center;font-size:12px;color:#fff;transition:opacity .3s}
.vids figure.on .play{opacity:0}
@media (max-width:900px){.vids{grid-template-columns:1fr 1fr}}

/* mercados */
.mk{display:grid;grid-template-columns:1fr 2fr;gap:18px}
.mk .card{border:1px solid var(--line);background:var(--bg2);padding:24px}
.mk .sn b{display:block;font-size:44px;font-weight:600;font-stretch:80%;margin:18px 0 6px}
.mk .sn p{color:var(--mute);font-size:15.5px}
.mk .tvbox{border:1px solid var(--line);background:var(--bg2);min-height:520px}
.tabs{display:flex;gap:8px;margin-bottom:14px}
.tabs button{background:none;border:1px solid var(--line);color:var(--mute);padding:10px 16px;cursor:pointer;font:500 12.5px 'IBM Plex Mono',monospace;letter-spacing:.1em;text-transform:uppercase}
.tabs button.on{border-color:var(--cu);color:var(--cu2)}
.legal{color:var(--mute);font-size:14.5px;margin-top:14px}
@media (max-width:900px){.mk{grid-template-columns:1fr}}

/* social */
.soc{display:grid;grid-template-columns:2fr 1fr 1fr;grid-auto-rows:210px;gap:14px}
.soc img{width:100%;height:100%;object-fit:cover;cursor:zoom-in}
.soc .big{grid-row:span 2}
@media (max-width:760px){.soc{grid-template-columns:1fr 1fr;grid-auto-rows:170px}.soc .big{grid-column:span 2}}

/* compromiso */
.comp{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.comp div{padding:30px 26px 34px 0;border-bottom:1px solid var(--line)}
.comp div+div{padding-left:26px;border-left:1px solid var(--line)}
.comp p{color:var(--mute);font-size:16.5px}
@media (max-width:860px){.comp{grid-template-columns:1fr}.comp div+div{padding-left:0;border-left:0}}

/* directivos */
.dir{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.dir figure{margin:0;border:1px solid var(--line);background:var(--bg2)}
.dir .pic{aspect-ratio:4/5;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#1E1A15,#121010);font:600 64px 'Archivo';font-stretch:80%;color:rgba(201,138,90,.55)}
.dir .pic.foto{padding:0;overflow:hidden}.dir .pic.foto img{width:100%;height:100%;object-fit:cover;object-position:50% 25%}
.dir .tx{padding:18px}
.dir .tx .mono{color:var(--cu2)}
.dir p{color:var(--mute);font-size:16px;margin:6px 0 0}
@media (max-width:1100px){.dir{grid-template-columns:1fr 1fr}}
@media (max-width:760px){.dir{grid-template-columns:1fr}}

/* contacto */
.con{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(28px,6vw,96px)}
form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form label{display:flex;flex-direction:column;gap:6px;color:var(--mute);font-size:14px}
form .full{grid-column:span 2}
input,select,textarea{background:var(--bg2);border:1px solid rgba(244,239,230,.22);color:var(--ink);font:16px 'Archivo',sans-serif;padding:14px;outline:none;border-radius:0;width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--cu)}
textarea{min-height:130px;resize:vertical}
.extra{display:none;grid-template-columns:1fr 1fr;gap:14px;padding:14px;border:1px solid rgba(201,138,90,.35);background:rgba(201,138,90,.05)}
.extra.on{display:grid}
.chk{flex-direction:row!important;align-items:flex-start;gap:10px!important;font-size:14.5px!important}
.chk input{width:auto;margin-top:3px}
.pasos{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:12px}
.pasos li{display:flex;gap:14px;align-items:baseline;color:var(--ink2);font-size:16.5px}
.pasos b{font:500 13px 'IBM Plex Mono',monospace;color:#140F0A;background:var(--cu);min-width:24px;height:24px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center}
.ok{display:none;border:1px solid var(--cu);padding:16px;color:var(--ink2)}
@media (max-width:860px){.con{grid-template-columns:1fr}form,.extra.on{grid-template-columns:1fr}form .full{grid-column:auto}}

footer{border-top:1px solid var(--line);padding:40px var(--pad) 90px;display:flex;flex-wrap:wrap;gap:20px 40px;justify-content:space-between;align-items:center;color:var(--mute);font-size:15px}
footer .brand img{width:110px;height:110px}


/* mineros que pican al hacer scroll (silueta del minero del logo) */
.minero{position:fixed;bottom:58px;z-index:40;width:62px;height:91px;pointer-events:none;opacity:0;transition:opacity .6s}
.minero.ver{opacity:.42}
.minero:after{content:"";position:absolute;left:-6px;right:-6px;bottom:0;height:1px;background:rgba(167,176,184,.35)}
.minero.izq{left:10px}
.minero.der{right:10px;transform:scaleX(-1)}
.minero img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;visibility:hidden}
.minero img.on{visibility:visible}
@media (max-width:1200px){.minero{width:46px;height:68px;bottom:64px}.minero.izq{left:4px}.minero.der{right:4px}}
@media (max-width:760px){.minero{width:38px;height:56px;bottom:46px}.minero.ver{opacity:.38}.minero:after{left:-3px;right:-3px}}
@media (prefers-reduced-motion:reduce){.minero{display:none}}

/* ===== optimización teléfono ===== */
.hero{overflow:hidden;contain:paint}
@media (max-width:760px){
  section{padding:64px 0}
  h2{margin:20px 0 26px}
  .lead{font-size:19px}
  .hero{min-height:100svh}
  .hero .in{padding:96px var(--pad) 22px}
  .hero h1{font-size:clamp(44px,13vw,64px)}
  .hero .row{gap:18px;margin-top:16px}
  .hero .row .lead{font-size:17.5px}
  .btns{width:100%;flex-direction:column}
  .btns .btn{width:100%;justify-content:center;height:54px}
  .hero .foot{margin-top:18px;font-size:10.5px;gap:4px}
  .tick .lab span{display:none}
  .tick .lab{padding:0 12px}
  .lang button{min-width:44px;height:44px}.lang{height:44px}.burger{height:44px}
  .tabs button{min-height:44px;flex:1}
  .usos div{padding:18px 16px 20px}.usos h3{margin-top:12px}
  .proc{gap:26px}
  .eq{grid-template-columns:1fr 1fr;gap:12px}
  .eq .tx{padding:12px}.eq .tx h3{font-size:17px}.eq .tx p{font-size:14px}.eq .tx .mono{font-size:11px}
  .gal{columns:2;column-gap:10px}.gal figure{margin-bottom:10px}
  .vids{gap:10px}.vids figcaption{font-size:10.5px;padding:24px 8px 8px}
  .mk .tvbox{min-height:380px}
  .comp div{padding:22px 0 24px}
  .dir{gap:14px}
  .dir figure{display:grid;grid-template-columns:120px 1fr;align-items:center}
  .dir .pic{aspect-ratio:1/1;font-size:40px}
  .dir .pic.foto{aspect-ratio:3/4}
  .dir .tx{padding:14px}
  form{gap:12px}
  .chk input{width:22px;height:22px;flex:none}
  footer{padding:32px var(--pad) 80px;flex-direction:column;align-items:flex-start}
  footer a{display:inline-block;padding:10px 0}
  .ribbon{font-size:10px;bottom:8px;max-width:calc(100% - 110px);overflow:hidden;text-overflow:ellipsis}
}
@media (max-width:380px){.eq{grid-template-columns:1fr}}

/* ubicación */
.ubi{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(28px,6vw,90px);align-items:center}
.mapa{position:relative;aspect-ratio:4/3;overflow:hidden;border:1px solid var(--line);background:#1a1815}
.mapa iframe{position:absolute;inset:0;width:100%;height:100%;border:0;filter:grayscale(1) invert(.92) contrast(.9) brightness(.85) sepia(.25)}
.mapa .tapa{position:absolute;inset:0}
.mapa .zona{position:absolute;left:46%;top:50%;width:34%;aspect-ratio:1;transform:translate(-50%,-50%);border-radius:50%;background:radial-gradient(circle,rgba(201,138,90,.45),rgba(201,138,90,.08) 60%,transparent 70%);border:1px dashed rgba(224,165,122,.7)}
.mapa .zona span{position:absolute;left:50%;top:50%;width:12px;height:12px;margin:-6px;border-radius:50%;background:var(--cu2);box-shadow:0 0 0 6px rgba(201,138,90,.25)}
@media (max-width:860px){.ubi{grid-template-columns:1fr}}

/* lightbox */
.lb{position:fixed;inset:0;z-index:80;background:rgba(8,7,6,.94);display:none;align-items:center;justify-content:center;padding:24px;cursor:zoom-out}
.lb.open{display:flex}
.lb img{max-height:90vh;max-width:94vw;object-fit:contain}

/* estaño en vivo */
.sn-card{border:1px solid var(--line);background:var(--bg2);padding:24px}
.sn-t{color:var(--cu2)}
.sn-p{display:block;font-weight:700;font-size:clamp(40px,4.4vw,58px);line-height:1;margin:16px 0 6px;font-family:'Montserrat',sans-serif;letter-spacing:-.02em}
.sn-c{font:500 14px 'IBM Plex Mono',monospace}.sn-c.up{color:#7FC9A0}.sn-c.dn{color:#E08A7A}
.sn-f{color:var(--mute);font-size:13.5px;margin:10px 0 0}
.sn-sin{color:var(--mute)}
.sn-graf{width:100%;height:auto;margin-top:14px;overflow:visible}
.sn-graf text{fill:var(--mute);font:11px 'IBM Plex Mono',monospace}
.sn-graf .g{stroke:rgba(244,239,230,.1);stroke-dasharray:3 4}
.sn-var{color:var(--ink2);font:500 13px 'IBM Plex Mono',monospace;margin:6px 0 0}
.sn-tabs{display:flex;gap:8px;margin-top:18px}
.sn-tabs button{background:none;border:1px solid var(--line);color:var(--mute);min-height:40px;padding:0 14px;cursor:pointer;font:500 12px 'IBM Plex Mono',monospace;letter-spacing:.08em;text-transform:uppercase}
.sn-tabs button.on{border-color:var(--cu);color:var(--cu2)}
.ver-mas{margin-top:22px}
.mk .card.sn-card .sn-graf{margin-top:18px}
/* páginas internas */
body.interna{padding-top:84px}
nav.main a.act{color:var(--cu2)}
.pag-top{padding:60px 0 30px;border-top:0}
.pag-top .kick a{color:var(--mute)}
body.interna .pag-h1{max-width:none;font-family:'Montserrat',sans-serif;font-weight:800;letter-spacing:-.035em;font-size:clamp(40px,7vw,96px);line-height:.98;margin:18px 0 18px}
.pag-h1 em,.pag-h2 em{font-style:normal;font-weight:300;color:#C4CBD1}
body.interna .pag-h2{max-width:none;font-family:'Montserrat',sans-serif;font-weight:800;letter-spacing:-.03em;font-size:clamp(26px,3vw,40px);line-height:1.05;margin:0 0 24px}
.pag-sec{padding:60px 0}
.sn-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(24px,5vw,64px);align-items:start}
.sn-lista{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.sn-lista li{padding:16px 0;border-bottom:1px solid var(--line)}
.sn-lista b{display:block;font-size:18px;margin-bottom:4px}
.sn-lista span{color:var(--mute);font-size:15.5px}
.tvbox.grande{min-height:600px;border:1px solid var(--line);background:var(--bg2)}
.filtros{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.filtros button{background:none;border:1px solid var(--line);color:var(--ink2);min-height:44px;padding:0 16px;cursor:pointer;font:500 13px 'Archivo',sans-serif}
.filtros button.on{border-color:var(--cu);color:var(--cu2);background:rgba(201,138,90,.08)}
.gal-vids{margin-top:24px}
@media (max-width:860px){.sn-grid{grid-template-columns:1fr}.tvbox.grande{min-height:440px}body.interna{padding-top:72px}.pag-top{padding:36px 0 16px}.pag-sec{padding:40px 0}}

/* metales propios (MetalCharts) */
.met-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px;margin-bottom:34px}
.met{border:1px solid var(--line);background:var(--bg2);padding:16px}
.met-n{color:var(--cu2);font-size:12px}
.met b{display:block;font-family:'Montserrat',sans-serif;font-weight:700;font-size:26px;margin:10px 0 2px;letter-spacing:-.01em}
.met small{display:block;color:var(--mute);font-size:12.5px;margin-bottom:8px}
.met-f{grid-column:1/-1;margin:0}
body.interna .pag-h3{font-family:'Montserrat',sans-serif;font-size:18px;font-weight:700;margin:0 0 12px}
@media (max-width:760px){.met-grid{grid-template-columns:1fr 1fr}.met b{font-size:22px}}
/* tres idiomas en el encabezado del teléfono */
.lang button{white-space:nowrap}
@media (max-width:520px){
  .lang button{min-width:34px;padding:0 6px;font-size:12px}
  .brand small{display:none}
  .brand b{font-size:14.5px}
  .hright{gap:6px}
  .burger{padding:0 9px;font-size:11px}
}
@media (max-width:360px){.brand span{display:none}}
/* etiqueta de sección: en vez de la rayita de plantilla, el cristal facetado del logo */
.kick{gap:12px;font-family:'Montserrat',sans-serif;font-weight:600;font-size:12.5px;letter-spacing:.2em}
.kick i{width:11px;height:11px;flex:none;background:linear-gradient(135deg,#E0A57A 0 50%,#8C5A3C 50% 100%);clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%)}
.kick span{color:var(--ink2)}

/* tomado de la referencia Minsur, con nuestro estilo */
.cifras-banda{padding:34px 0;border-top:0;border-bottom:1px solid var(--line);background:#0B0A08}
.cb{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cb b{display:block;font-family:'Montserrat',sans-serif;font-weight:800;font-size:clamp(28px,3.4vw,46px);letter-spacing:-.02em;color:var(--ink)}
.cb span{color:var(--mute);font-size:14.5px}
.msj{display:grid;grid-template-columns:320px 1fr;gap:clamp(28px,5vw,72px);align-items:center}
.msj figure{margin:0;aspect-ratio:4/5;overflow:hidden;border:1px solid var(--line)}
.msj figure img{width:100%;height:100%;object-fit:cover}
.msj blockquote{margin:22px 0 22px;font-family:'Newsreader',serif;font-size:clamp(21px,2.1vw,28px);line-height:1.45;color:var(--ink);position:relative;padding-left:22px;border-left:2px solid var(--cu)}
.firma b{display:block;font-size:18px}.firma span{color:var(--mute);font-size:15px}
.bit{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.bit article{border:1px solid var(--line);background:var(--bg2);padding-bottom:20px}
.bit .im{aspect-ratio:16/10;overflow:hidden}.bit .im img{width:100%;height:100%;object-fit:cover}
.bit-f{display:block;color:var(--cu2);margin:16px 18px 6px;font-size:11.5px}
.bit h3{margin:0 18px 8px}.bit p{margin:0 18px;color:var(--mute);font-size:15.5px}
.docs{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,72px);align-items:center}
.doc-lista{display:grid;gap:12px}
.doc{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 22px;border:1px solid var(--line);background:var(--bg);color:var(--ink);transition:border-color .3s}
.doc:hover{border-color:var(--cu)}.doc b{font-weight:600}.doc span{font:500 12px 'IBM Plex Mono',monospace;color:var(--cu2)}
@media (max-width:900px){.cb{grid-template-columns:1fr 1fr}.msj{grid-template-columns:1fr}.msj figure{max-width:260px}.bit{grid-template-columns:1fr}.docs{grid-template-columns:1fr}}

/* portada: el texto ya no tapa la operación */
.hero .shade{background:linear-gradient(90deg,rgba(14,13,11,.82) 0%,rgba(14,13,11,.55) 34%,rgba(14,13,11,0) 62%),linear-gradient(180deg,rgba(14,13,11,.7) 0%,rgba(14,13,11,0) 22%,rgba(14,13,11,0) 70%,rgba(14,13,11,.92) 100%)}
.hero .kick b{color:var(--cu2);font-weight:600}
.hero h1{font-size:clamp(46px,min(7.4vw,12vh),132px)!important}
.hero .row .lead{max-width:34ch;font-size:clamp(19px,1.6vw,23px)}
@media (max-width:760px){.hero .shade{background:linear-gradient(180deg,rgba(14,13,11,.7) 0%,rgba(14,13,11,0) 22%,rgba(14,13,11,0) 62%,rgba(14,13,11,1) 100%)}.hero h1{font-size:clamp(40px,12vw,58px)!important}}

/* la oportunidad (estrategia comercial) */
.opo{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line);margin-bottom:56px}
.opo div{padding:26px 22px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.opo-n{color:var(--cu2);font-size:11.5px}.opo h3{margin:16px 0 10px}.opo p{color:var(--mute);font-size:16px;margin:0}
.opo2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px)}
.opo-t{font-size:clamp(22px,2vw,28px);margin-bottom:18px}
.opo-l{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.opo-l li{padding:14px 0;border-bottom:1px solid var(--line);color:var(--ink2);font-size:16.5px}
.opo-a{display:grid;gap:12px}.opo-a div{border:1px solid var(--line);background:var(--bg);padding:16px 18px}
.opo-a b{display:block;font-size:17px;margin-bottom:4px;color:var(--cu2)}.opo-a span{color:var(--mute);font-size:15.5px}
.op-eq{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}
.op-eq a{position:relative;display:block;aspect-ratio:4/3;overflow:hidden;color:var(--ink)}
.op-eq img{width:100%;height:100%;object-fit:cover;transition:transform 1s}.op-eq a:hover img{transform:scale(1.05)}
.op-eq span{position:absolute;left:0;right:0;bottom:0;padding:22px 10px 8px;font-size:13px;background:linear-gradient(transparent,rgba(0,0,0,.8))}
@media (max-width:900px){.opo{grid-template-columns:1fr}.opo2{grid-template-columns:1fr}.op-eq{grid-template-columns:1fr 1fr}}

/* páginas internas: menos aire entre el título y la primera sección */
body.interna section:not(.pag-top){padding:64px 0}
@media (max-width:760px){body.interna section:not(.pag-top){padding:44px 0}}

/* anclas: que el encabezado fijo no tape el destino */
[id]{scroll-margin-top:96px}
.ancla{display:block;position:relative;top:-110px;visibility:hidden;height:0;grid-column:1/-1;margin:0}

/* la oportunidad, versión visual */
.opo-v div>p{color:var(--ink2);font-size:15.5px;margin:14px 0 0}
.opo-big{font-family:'Montserrat',sans-serif;font-weight:800;font-size:clamp(46px,4.6vw,68px);letter-spacing:-.03em;line-height:1;margin:14px 0 4px;color:var(--ink)}
.opo-big small{font-size:.32em;font-weight:600;letter-spacing:0;color:var(--mute);margin-left:6px}
.opo-vis{height:120px;display:flex;align-items:center;justify-content:center}
.opo-vis .sn-graf{margin:0;height:120px}
.opo-vis .sn-graf text{display:none}
.paises{flex-wrap:wrap;gap:8px;align-content:center}
.pais{display:inline-flex;align-items:center;gap:7px;padding:8px 12px;border:1px solid var(--line);font-size:14px;color:var(--mute);background:var(--bg)}
.pais.alerta{border-color:rgba(224,138,122,.6);color:var(--ink)}
.pais i{width:8px;height:8px;border-radius:50%;background:#E08A7A;animation:latidoR 1.6s infinite}
@keyframes latidoR{50%{box-shadow:0 0 0 6px rgba(224,138,122,.15)}}
.opo-chip{height:120px;width:auto}
.opo-gotas circle{animation:gota 2.4s infinite}
.opo-gotas circle:nth-child(2n){animation-delay:.8s}.opo-gotas circle:nth-child(3n){animation-delay:1.6s}
@keyframes gota{0%,100%{opacity:.25}50%{opacity:1}}
@media (prefers-reduced-motion:reduce){.pais i,.opo-gotas circle{animation:none}}
.opo-v .opo-big,.opo-v .opo-vis{padding:0!important;border:0!important}
.opo-v .opo-big{padding-left:0}
@media (max-width:900px){.opo-vis{height:100px}.opo-vis .sn-graf,.opo-chip{height:100px}}

/* la oportunidad: contexto y animación al llegar */
.opo-ctx{display:block;color:var(--mute);font-size:13.5px;margin:2px 0 10px}
.opo-v .sn-graf path[fill^="url"]{opacity:0;transition:opacity 1s .9s}.opo-v.anim .sn-graf path[fill^="url"]{opacity:1}
.opo-v .sn-graf circle{opacity:0;transition:opacity .4s 1.7s}.opo-v.anim .sn-graf circle{opacity:1}
.opo-v .pais{opacity:0;transform:translateY(10px) scale(.96);transition:opacity .45s,transform .45s}
.opo-v.anim .pais{opacity:1;transform:none}
.opo-v.anim .pais:nth-child(2){transition-delay:.15s}.opo-v.anim .pais:nth-child(3){transition-delay:.3s}
.opo-v.anim .pais:nth-child(4){transition-delay:.45s}.opo-v.anim .pais:nth-child(5){transition-delay:.6s}.opo-v.anim .pais:nth-child(6){transition-delay:.75s}
.opo-v .pais.alerta{border-color:var(--line);color:var(--mute)}
.opo-v.anim .pais.alerta{border-color:rgba(224,138,122,.7);color:var(--ink);transition:opacity .45s,transform .45s,border-color .6s 1.2s,color .6s 1.2s}
.opo-v .pais i{opacity:0;transition:opacity .4s 1.3s}.opo-v.anim .pais i{opacity:1}
.opo-chip g[stroke] path{stroke-dasharray:14;stroke-dashoffset:14;transition:stroke-dashoffset 1.2s .3s}
.opo-v.anim .opo-chip g[stroke] path{stroke-dashoffset:0}
.opo-chip .flujo{stroke-dasharray:3 9;animation:flujo 1.2s linear infinite}
@keyframes flujo{to{stroke-dashoffset:-24}}
@media (prefers-reduced-motion:reduce){.opo-chip .flujo{animation:none}}
/* selector de idioma sin recuadro: globo + ES | EN | 中文 */
.lang{border:0!important;height:auto!important;align-items:center;gap:0;background:none}
.lang:before{content:"";width:17px;height:17px;margin-right:10px;flex:none;opacity:.75;
  background:no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23C4CBD1' stroke-width='1.6'%3E%3Ccircle cx='12' cy='12' r='9.5'/%3E%3Cpath d='M2.5 12h19M12 2.5c2.6 2.6 3.9 5.8 3.9 9.5s-1.3 6.9-3.9 9.5c-2.6-2.6-3.9-5.8-3.9-9.5S9.4 5.1 12 2.5z'/%3E%3C/svg%3E")}
.lang button{position:relative;padding:6px 9px!important;min-width:0!important;height:auto!important;color:var(--mute);font-family:'Montserrat',sans-serif!important;font-weight:600;font-size:12.5px!important;letter-spacing:.08em}
.lang button+button:before{content:"";position:absolute;left:0;top:50%;width:1px;height:12px;margin-top:-6px;background:rgba(244,239,230,.35)}
.lang button.on{color:var(--cu2)}
.lang button:hover{color:var(--ink)}
@media (max-width:520px){.lang:before{width:15px;height:15px;margin-right:6px}.lang button{padding:10px 6px!important;font-size:12px!important}}
/* botón de menú del teléfono sin recuadro: tres líneas */
.burger{border:0!important;background:none;position:relative;width:44px;height:44px!important;padding:0!important;font-size:0!important;color:transparent}
.burger:before,.burger:after{content:"";position:absolute;left:11px;right:11px;height:2px;background:var(--ink);transition:transform .3s}
.burger:before{top:15px;box-shadow:0 6px 0 var(--ink)}
.burger:after{top:27px}
/* fondo menos plano: tono algo más cálido, curvas de nivel (mapa topográfico) y una sección clara */
:root{--bg:#121009;--bg2:#1A1712}
body{background:var(--bg)}
section[style*="--bg2"],#oportunidad,#proyecto,#operacion,#contacto,.pag-top{background-image:url(../img/topo.svg)!important;background-size:cover;background-position:center;background-repeat:no-repeat}
#empresa,#galeria{background-image:url(../img/topo.svg);background-size:120% auto;background-position:right top;background-repeat:no-repeat}
/* sección clara: el mensaje del presidente */
#mensaje{background:#EFE9DF;color:#2B2B2E;border-top:0}
#mensaje blockquote{color:#2B2B2E;border-left-color:#8C5A3C}
#mensaje .kick span{color:#5d564b}
#mensaje .firma b{color:#2B2B2E}#mensaje .firma span{color:#6b665e}
#mensaje .ph{color:#8C5A3C}
#mensaje figure{border-color:#d9d0c2}
/* segunda sección clara: del cerro al concentrado */
#proceso{background:#EFE9DF!important;color:#2B2B2E}
#proceso h2{color:#2B2B2E}#proceso h2 em{color:#6b6458}
#proceso .kick span{color:#5d564b}
#proceso .proc p{color:#5d564b}#proceso .proc .n{color:#8C5A3C}
#proceso .proc .im{background:#ddd5c8}

/* proceso: 5 pasos (el 5.º fuera de la operación) + ¿dónde termina el estaño? */
.proc{grid-template-columns:repeat(4,1fr)}
@media (max-width:980px){.proc{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.proc{grid-template-columns:1fr}}
.proc .im-dib{display:flex;align-items:center;justify-content:center;background:#E4DCCF!important;border:1px dashed #b9ad9b}
.lingotes{width:78%;height:auto}
.lg-calor path{stroke-dasharray:4 6;animation:calor 2.2s linear infinite;opacity:.8}
@keyframes calor{to{stroke-dashoffset:-20}}
.paso-fuera .n{color:#8a8173!important}
.donde{margin-top:72px;padding-top:44px;border-top:1px solid rgba(43,43,46,.14)}
.donde-t{font-family:'Montserrat',sans-serif;font-weight:700;font-size:clamp(24px,2.6vw,34px);line-height:1.15;margin:0 0 30px;color:#2B2B2E}
.donde-t em{display:block;font-style:normal;font-weight:500;color:#6b6458;font-size:.62em;margin-top:8px}
.usos{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.uso{background:#F6F1E9;border:1px solid rgba(43,43,46,.1);padding:24px 22px 26px}
.uso-i{width:52px;height:52px;color:#8C5A3C;margin-bottom:16px}
.uso-i svg{width:52px!important;height:52px!important;display:block}
.uso-i path,.uso-i rect,.uso-i circle,.uso-i ellipse{stroke-dasharray:160;stroke-dashoffset:160;transition:stroke-dashoffset 1.6s cubic-bezier(.4,.1,.2,1) .2s}
.uso.in .uso-i path,.uso.in .uso-i rect,.uso.in .uso-i circle,.uso.in .uso-i ellipse{stroke-dashoffset:0}
.uso h3{font-family:'Montserrat',sans-serif;font-size:18px;font-weight:700;margin:0 0 8px;color:#2B2B2E}
.uso p{color:#5d564b;font-size:15.5px;margin:0}
.usos .uso:nth-child(2){transition-delay:.12s}.usos .uso:nth-child(3){transition-delay:.24s}.usos .uso:nth-child(4){transition-delay:.36s}
.donde-f{color:#8a8173;font-size:12px;margin:18px 0 0}
@media (max-width:980px){.usos{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.usos{grid-template-columns:1fr}.donde{margin-top:52px}}
@media (prefers-reduced-motion:reduce){.lg-calor path{animation:none}.uso-i *{stroke-dashoffset:0!important;transition:none!important}}

/* portada en teléfono: la foto completa (montaña, planta, lagunas y máquinas) sin zoom ni título encima (14-oct) */
@media (max-width:760px){
  .hero .bg{inset:0;background-position:50% 50%}
  .hero .mask{height:70svh}
  .hero .shade{height:70svh;background:linear-gradient(180deg,rgba(14,13,11,.6) 0%,rgba(14,13,11,0) 14%,rgba(14,13,11,0) 84%,rgba(14,13,11,1) 100%)!important}
  .hero .in{padding-top:calc(70svh - 26px)!important}
}

/* directiva: el sello de la empresa en lugar de la foto del presidente (pedido de Álvaro, 15-oct) */
.msj figure.sello{aspect-ratio:1/1;border:0;display:flex;align-items:center;justify-content:center;background:transparent}
.msj figure.sello img{width:82%;height:auto;object-fit:contain}
.opo-sel{color:var(--mute);margin:-6px 0 18px;font-size:16px}

/* directiva como organigrama: presidente arriba, equipos por área debajo, gente por cargo (Álvaro, 15-oct) */
.org{margin-top:34px}
.org-top{max-width:420px;margin:0 auto;text-align:center;border:1px solid var(--cu);background:var(--bg);padding:22px 26px}
.org-top b{display:block;font-size:24px;margin-top:6px}
.org-top p{margin:6px 0 0;color:var(--mute);font-size:16px}
.org-c{color:var(--cu2);font-size:12px}
.org-linea{width:1px;height:34px;margin:0 auto;background:var(--cu)}
.org-eqs{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative;padding-top:34px}
.org-eqs:before{content:"";position:absolute;top:0;left:12.5%;right:12.5%;height:1px;background:var(--cu)}
.org-eq{position:relative;border:1px solid var(--line);background:var(--bg)}
.org-eq:before{content:"";position:absolute;top:-35px;left:50%;width:1px;height:34px;background:var(--cu)}
.org-a{margin:0;padding:16px 18px;font-size:18px;border-bottom:1px solid var(--line);background:rgba(201,138,90,.08)}
.org-eq ul{list-style:none;margin:0;padding:8px 0}
.org-eq li{padding:10px 18px;display:flex;flex-direction:column;gap:3px}
.org-eq li b{font-weight:600;font-size:16px}
.org-eq li.n1 b{font-size:17px}
.org-eq li.n2{padding-left:32px;border-left:2px solid rgba(201,138,90,.35);margin-left:18px}
.org-eq li.n3{padding-left:46px;border-left:2px solid rgba(201,138,90,.2);margin-left:18px}
.org-nota{margin-top:22px;font-size:14px;text-align:center}
@media (max-width:1000px){.org-eqs{grid-template-columns:1fr 1fr}.org-eqs:before,.org-eq:before{display:none}}
@media (max-width:640px){.org-eqs{grid-template-columns:1fr;padding-top:18px}.org-linea{height:18px}}

/* organigrama animado: el presidente aparece, la línea baja, se abre hacia los equipos,
   cada equipo cae en su lugar y su gente entra en orden de cargo */
.org.listo .org-top{opacity:0;transform:translateY(16px) scale(.97)}
.org.listo .org-linea{transform:scaleY(0);transform-origin:top}
.org.listo .org-eqs:before{transform:scaleX(0)}
.org.listo .org-eq{opacity:0;transform:translateY(26px)}
.org.listo .org-eq:before{transform:scaleY(0);transform-origin:top}
.org.listo .org-eq li{opacity:0;transform:translateX(-12px)}
.org.anim .org-top{opacity:1;transform:none;transition:opacity .7s ease,transform .8s cubic-bezier(.2,.8,.2,1)}
.org.anim .org-linea{transform:none;transition:transform .45s cubic-bezier(.6,0,.3,1) .55s}
.org.anim .org-eqs:before{transform:none;transition:transform .7s cubic-bezier(.6,0,.3,1) 1s}
.org.anim .org-eq:before{transform:none;transition:transform .35s ease calc(1.55s + var(--i) * .15s)}
.org.anim .org-eq{opacity:1;transform:none;transition:opacity .6s ease calc(1.7s + var(--i) * .15s),transform .7s cubic-bezier(.2,.8,.2,1) calc(1.7s + var(--i) * .15s),border-color .3s}
.org.anim .org-eq li{opacity:1;transform:none;transition:opacity .5s ease calc(2.1s + var(--i) * .15s + var(--j) * .14s),transform .5s cubic-bezier(.2,.8,.2,1) calc(2.1s + var(--i) * .15s + var(--j) * .14s)}
.org-top{position:relative;overflow:hidden}
.org.anim .org-top:after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 40%,rgba(224,165,122,.18) 50%,transparent 60%);transform:translateX(-100%);animation:orgBrillo 1.6s ease .9s 1 forwards}
@keyframes orgBrillo{to{transform:translateX(100%)}}
.org-eq:hover{border-color:var(--cu)}
.org-eq li{transition:background .25s}.org-eq li:hover{background:rgba(201,138,90,.07)}
@media (max-width:1000px){.org.anim .org-eq{transition-delay:calc(1s + var(--i) * .12s)}.org.anim .org-eq li{transition-delay:calc(1.3s + var(--i) * .12s + var(--j) * .12s)}}
@media (prefers-reduced-motion:reduce){.org.listo .org-top,.org.listo .org-linea,.org.listo .org-eqs:before,.org.listo .org-eq,.org.listo .org-eq:before,.org.listo .org-eq li{opacity:1;transform:none}.org.anim .org-top:after{display:none}}

/* ===== diseño v2 (16-oct) ===== */
/* 1) proceso como línea de tiempo: números 01-05 unidos por una línea cobre que se dibuja al llegar */
.proc{counter-reset:paso;position:relative;padding-top:70px}
.proc:before{content:"";position:absolute;top:22px;left:10%;right:10%;height:2px;background:#C98A5A;transform:scaleX(0);transform-origin:left;transition:transform 1.4s cubic-bezier(.6,0,.3,1) .2s}
.proc.vista:before{transform:none}
.proc figure{counter-increment:paso;position:relative}
.proc figure:before{content:counter(paso,decimal-leading-zero);position:absolute;top:-70px;left:50%;width:46px;height:46px;margin-left:-23px;border-radius:50%;background:#C98A5A;color:#fff;display:flex;align-items:center;justify-content:center;font:700 14px 'Montserrat',sans-serif;box-shadow:0 0 0 6px #EFE9DF;transform:scale(0);transition:transform .45s cubic-bezier(.3,1.6,.5,1)}
.proc.vista figure:before{transform:none}
.proc.vista figure:nth-child(1):before{transition-delay:.25s}.proc.vista figure:nth-child(2):before{transition-delay:.5s}
.proc.vista figure:nth-child(3):before{transition-delay:.75s}.proc.vista figure:nth-child(4):before{transition-delay:1s}.proc.vista figure:nth-child(5):before{transition-delay:1.25s}
.proc .im{border-radius:12px;border:1px solid rgba(140,90,60,.35);aspect-ratio:4/5}
.proc .paso-fuera:before{background:#b9ad9b}
@media (max-width:980px){.proc{padding-top:0}.proc:before{display:none}.proc figure:before{top:12px;left:12px;margin:0;width:38px;height:38px;font-size:12.5px;box-shadow:none;z-index:2}}
@media (prefers-reduced-motion:reduce){.proc:before,.proc figure:before{transform:none;transition:none}}

/* 2) operación en mosaico: foto grande + tres con su dato */
.opm{display:grid;grid-template-columns:1.45fr 1fr 1fr;grid-template-rows:280px 250px;gap:14px}
.opm-t{position:relative;display:block;overflow:hidden;border-radius:12px;border:1px solid var(--line);color:var(--ink)}
.opm-t img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s cubic-bezier(.2,.7,.2,1)}
.opm-t:hover img{transform:scale(1.05)}.opm-t:hover{border-color:var(--cu)}
.opm-g{grid-row:1/3}.opm-w{grid-column:2/4}
.opm-x{position:absolute;left:0;right:0;bottom:0;padding:44px 20px 18px;background:linear-gradient(transparent,rgba(10,9,7,.88) 55%)}
.opm-x b{display:block;font-size:19px;font-weight:600}
.opm-x small{display:block;color:#D9D1C3;font-size:14.5px;margin-top:3px;max-width:44ch}
.opm-tag{display:inline-block;color:#120E0A;background:#E0A57A;padding:4px 9px;border-radius:4px;font-size:12px;margin-bottom:10px;letter-spacing:.06em}
.opm-g .opm-x b{font-size:24px}
@media (max-width:900px){.opm{grid-template-columns:1fr 1fr;grid-template-rows:auto}.opm-g{grid-column:1/3;grid-row:auto;aspect-ratio:16/10}.opm-w{grid-column:1/3;aspect-ratio:16/9}.opm-t:not(.opm-g):not(.opm-w){aspect-ratio:1/1}}
@media (max-width:520px){.opm-x{padding:36px 14px 12px}.opm-x small{font-size:13.5px}.opm-x b{font-size:17px}}

/* 3) cifras de la oportunidad en tarjetas con borde cobre */
.opo.opo-v{border:0;gap:18px}
.opo.opo-v>div{border:1px solid rgba(201,138,90,.45)!important;border-radius:14px;background:linear-gradient(160deg,rgba(201,138,90,.07),rgba(18,16,9,.6))}
.opo-v .opo-big{color:#E0A57A}
@media (max-width:900px){.opo.opo-v{gap:14px}}

/* 4) portada más ordenada: texto y botones a la izquierda, con una rayita cobre */
@media (min-width:901px){
  .hero .row{flex-direction:column;align-items:flex-start;gap:26px}
  .hero .row .lead{position:relative;padding-left:44px}
  .hero .row .lead:before{content:"";position:absolute;left:0;top:.8em;width:30px;height:2px;background:#C98A5A}
}

/* portada animada (Kling + cámara estabilizada, bucle de 4 s): aparece suave sobre la foto cuando ya está corriendo */
.hero .bg-vid{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:62% 50%;opacity:0;transition:opacity 1.4s ease}
.hero .bg-vid.listo{opacity:1}
@media (max-width:900px){.hero .bg-vid{object-position:68% 50%}}
@media (prefers-reduced-motion:reduce){.hero .bg-vid{display:none}}

/* fundición: foto referencial (el paso ocurre fuera de la operación) */
.proc .im{position:relative}
.proc .im .ref{position:absolute;left:10px;bottom:10px;background:rgba(18,16,9,.72);color:#EFE9DF;font-size:10.5px;padding:4px 8px;border-radius:4px;letter-spacing:.08em}

/* ═══════════════════════════════════════════════════════════════════
   18-oct · SIN GENÉRICOS (aprobado por Ramiz)
   Base azul marino profundo + cobre: los colores de las referencias de
   Álvaro (azul marino y dorado) en vez del casi-negro tostado. Claros en
   gris estaño, no crema. Sin etiquetas sobre cada título, sin letra de
   máquina para rotular, títulos de un solo peso, botones sin flecha.
   ═══════════════════════════════════════════════════════════════════ */
:root{--bg:#0D141C;--bg2:#121B25;--bg3:#18232F;--ink:#F1F3F2;--ink2:#D2D8DB;--mute:#9BA6AE;--line:rgba(241,243,242,.13)}
body{background:var(--bg)}
.tick{background:#0A1017}

/* la letra de máquina queda solo donde hay datos */
.mono{font-family:'Archivo',system-ui,sans-serif;letter-spacing:0;text-transform:none;font-size:14.5px}
.opm-tag,.tick .lab,.opo-n{font-family:'IBM Plex Mono',monospace;letter-spacing:.04em;font-size:12.5px}

/* sin etiqueta encima de cada título: el título ya dice qué es */
.kick:not(.hf){display:none}
.kick.hf{font-size:15px;font-weight:600}
.kick.hf b{color:var(--cu2)}

/* títulos de un solo peso; el contraste negrita + fina solo en la portada */
body h2 em,body.f1 h2 em,body.f2 h2 em,body.f3 h2 em,.pag-h1 em,.pag-h2 em,#proceso h2 em{font-family:inherit;font-style:normal;font-weight:inherit;font-stretch:inherit;letter-spacing:inherit;color:inherit}

/* claros en gris estaño */
#mensaje,#proceso{background:#E6E9EA!important;color:#1F252B}
#mensaje blockquote{color:#1F252B}
#mensaje .firma b{color:#1F252B}

/* sin la rayita cobre antes del texto de la portada (se leía como guion) */
body .hero .row .lead{padding-left:0}
body .hero .row .lead:before{display:none}
.opo2.una{grid-template-columns:1fr;max-width:760px}
.proc .im video{width:100%;height:100%;object-fit:cover;display:block}
/* portada B: foto real de la estación al pie del cerro (vista previa con ?portada=b) */
.pb .hero .bg{background-image:url(../img/portada-b.webp);background-position:40% 60%}
.pb #heroVid{display:none!important}
@media (max-width:760px){.pb .hero .bg{background-image:url(../img/portada-b-movil.webp);background-position:50% 60%}}
.pbr .hero .bg{background-image:url(../img/portada-breal.webp)}
@media (max-width:760px){.pbr .hero .bg{background-image:url(../img/portada-breal-movil.webp)}}
/* portada C: aérea con el espacio real (vista previa con ?portada=c). En PC el texto sube para no tapar la estación */
.pcv .hero .bg{background-image:url(../img/portada-c.webp);background-position:45% 50%}
@media (min-width:761px){
  /* sin el rótulo de arriba; título arriba, texto y botones abajo; la foto casi sin recorte para que se vea el camino al cerro */
  .pcv .hero .bg{inset:0;background-position:78% 50%}
  .pcv .hero .kick{display:none}
  .pcv .hero .in{justify-content:space-between;padding-top:104px}
  .pcv .hero .shade{background:radial-gradient(ellipse 40% 38% at 90% 70%,rgba(14,13,11,.82),rgba(14,13,11,.45) 50%,rgba(14,13,11,0) 100%),linear-gradient(180deg,rgba(14,13,11,.86) 0%,rgba(14,13,11,.6) 24%,rgba(14,13,11,.18) 40%,rgba(14,13,11,0) 48%,rgba(14,13,11,0) 80%,rgba(14,13,11,.45) 100%)}
  /* el texto y los botones pasan arriba a la derecha, al lado del título, para no tapar la laguna izquierda */
  .pcv .hero .row{position:absolute;bottom:clamp(150px,19vh,200px);right:var(--pad);width:clamp(300px,27vw,440px);flex-direction:column;align-items:flex-start;gap:16px;margin:0}
  /* foto al tamaño que vino, sin acercamiento: se ve el camino al cerro */
  .pcv .hero .bg{transform:none!important;background-position:100% 50%!important}
  /* un solo llamado: Contacto queda en el menú */
  .pcv .hero .btns .btn.g{display:none}
  /* etiquetas al pasar el mouse (solo PC) */
  .pcv .hs{display:block}
  .pcv .hero .row .btns{display:flex;flex-wrap:wrap;gap:10px}
  .pcv .hero .row .lead{margin:0;font-size:clamp(16px,1.25vw,20px)}
  .pcv .hero .lead{text-shadow:0 1px 14px rgba(0,0,0,.9)}
  .pcv .hero .btn.g{background:rgba(14,13,11,.55);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
}
@media (max-width:760px){.pcv .hero .bg{background-image:url(../img/portada-c-movil.webp);background-position:50% 62%}}

.hs{display:none;position:absolute;inset:0;z-index:2;pointer-events:none}
.hs-p{position:absolute;width:0;height:0;pointer-events:auto}
.hs-p i{position:absolute;left:-11px;top:-11px;width:22px;height:22px;border-radius:50%;border:2px solid #F4EFE6;background:rgba(201,138,90,.55);box-shadow:0 0 0 0 rgba(244,239,230,.6);animation:hsLat 2.4s ease-out infinite;cursor:pointer}
.hs-p b{position:absolute;left:18px;top:-15px;white-space:nowrap;font:600 14px/1 Inter,Arial,sans-serif;color:#F4EFE6;background:rgba(14,13,11,.78);padding:8px 11px;border-radius:3px;border-left:2px solid #C98A5A;opacity:0;transform:translateX(-6px);transition:opacity .25s,transform .25s;pointer-events:none}
.hs-p:hover b,.hs-p i:hover+b{opacity:1;transform:none}
.hs-p[data-x="0.965"] b{left:auto;right:18px;border-left:0;border-right:2px solid #C98A5A}
@keyframes hsLat{0%{box-shadow:0 0 0 0 rgba(244,239,230,.55)}100%{box-shadow:0 0 0 14px rgba(244,239,230,0)}}
@media (hover:none),(max-width:760px){.pcv .hs{display:none}}
@media (prefers-reduced-motion:reduce){.hs-p i{animation:none}}
.pcv .hero .btns .btn.g{display:none}

/* texto del proyecto en la portada C: sin caja, sombra suave y letra más clara */
@media (min-width:761px){.pcv .hero .row .lead{color:#FFF8EE;font-family:Inter,Arial,sans-serif;font-weight:500;font-size:clamp(17px,1.3vw,21px);line-height:1.45;letter-spacing:.005em;text-shadow:0 1px 3px rgba(0,0,0,.75),0 2px 18px rgba(0,0,0,.6)}}

/* portada C: título un poco más pequeño en PC */
@media (min-width:761px){.pcv .hero h1{font-size:clamp(43px,min(6.8vw,11vh),122px)!important}}
/* portada C en teléfono: foto más alejada (recorte cuadrado) */
@media (max-width:760px){
  .pcv .hero .mask,.pcv .hero .shade{height:48svh}
  .pcv .hero .bg{background-position:50% 50%}
  .pcv .hero .in{padding-top:calc(46svh - 40px)!important}
}

/* portada D (22-oct): foto realista (lagunas pegadas a la estación) + bucle animado; acomodo de la C */
.pd .hero .bg{background-image:url(../img/portada-d.webp)}
.pd #heroVid{display:block!important}
@media (min-width:761px){
  .pd .hero .bg-vid{object-position:100% 50%}
  .pd .hero .row{right:auto;left:var(--pad);bottom:clamp(110px,14vh,160px)}
  .pd .hero .shade{background:radial-gradient(ellipse 42% 36% at 12% 78%,rgba(14,13,11,.8),rgba(14,13,11,.4) 52%,rgba(14,13,11,0) 100%),linear-gradient(180deg,rgba(14,13,11,.86) 0%,rgba(14,13,11,.6) 24%,rgba(14,13,11,.18) 40%,rgba(14,13,11,0) 48%,rgba(14,13,11,0) 80%,rgba(14,13,11,.4) 100%)}
}
@media (max-width:760px){
  .pd .hero .bg{background-image:url(../img/portada-d-1600.webp);background-position:39% 50%!important}
  .pd .hero .bg-vid{object-position:39% 50%}
}
.pd .hs-p[data-dx="0.934"] b{left:auto;right:18px;border-left:0;border-right:2px solid #C98A5A}

/* paso 3 (22-oct): desplegable de usos del estaño, fuente al pie y cinta en dos líneas */
.donde2{margin-top:56px}
.donde2 .opo-t em{display:block;font-style:normal;font-weight:500;color:var(--mute);font-size:.62em;margin-top:8px}
.usos-d{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.uso-d{border:1px solid var(--line);background:rgba(255,255,255,.02);transition:background .25s,border-color .25s}
.uso-d[open]{background:rgba(201,138,90,.07);border-color:rgba(201,138,90,.45)}
.uso-d summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:18px 18px;font-weight:600;color:var(--ink)}
.uso-d summary::-webkit-details-marker{display:none}
.uso-d summary b{font-family:'IBM Plex Mono',monospace;color:var(--cu2);font-size:20px;min-width:58px}
.uso-d summary span{flex:1}
.uso-d summary i{width:10px;height:10px;border-right:2px solid var(--cu2);border-bottom:2px solid var(--cu2);transform:rotate(45deg);transition:transform .25s;margin-top:-4px}
.uso-d[open] summary i{transform:rotate(225deg);margin-top:4px}
.uso-d p{margin:0;padding:0 18px 18px 90px;color:var(--ink2);font-size:15.5px;animation:usoAbre .3s ease}
@keyframes usoAbre{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.opo-src{color:var(--mute);font-size:12px;margin:16px 0 0}
@media (max-width:980px){.usos-d{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.usos-d{grid-template-columns:1fr}.uso-d p{padding-left:18px}}
@media (prefers-reduced-motion:reduce){.uso-d p{animation:none}}
.tick2{flex-direction:column}
.tick2 .tk-r{display:flex;align-items:stretch;min-height:46px}
.tick2 .tk-r+.tk-r{border-top:1px solid var(--line)}
.tick2 .lab{width:120px;justify-content:flex-start}
.tk-sn{flex:none;display:flex;align-items:center;gap:8px;padding:0 16px;border-right:1px solid var(--line);color:var(--ink);text-decoration:none;font-size:13px;white-space:nowrap}
.tk-sn b{color:var(--cu2)}
.tk-sn em{font-style:normal;color:var(--ink2)}
@media (max-width:760px){
  .tick2 .lab{width:auto}
  .tk-sn span{display:none}
  .tk-sn{padding:0 10px;font-size:12px}
  .pd .hero .kick{display:none}
}

/* mapa más cercano (22-oct): estado Bolívar, zona referencial */
.mapa .zona{left:48%;top:44%;width:30%}
/* foto del equipo técnico: que se vean las caras (antes cortaba arriba) */
img[src$="campo-geologos.webp"]{object-position:50% 18%!important}
.usos-d{align-items:start}
.opo-src{margin:16px 0 56px}
.mapa .zona{left:44%;top:40%}
.tk-sn small{color:var(--mute);font-size:11.5px}
.tk-sn small:before{content:"· "}
@media (max-width:760px){.tk-sn small{display:none}}
/* portada D en PC (22-oct, pedido de Ramiz): título a la derecha, botón al centro, texto abajo a la izquierda */
@media (min-width:761px){
  .pd .hero h1{text-align:right;margin-left:auto}
  .pd .hero .row{left:var(--pad);right:var(--pad);width:auto;flex-direction:row;align-items:flex-end}
  .pd .hero .row .lead{max-width:clamp(300px,27vw,440px)}
  .pd .hero .row .btns{position:absolute;left:0;right:0;bottom:0;justify-content:center;pointer-events:none}
  .pd .hero .row .btns .btn{pointer-events:auto}
  .pd .hero .shade{background:radial-gradient(ellipse 42% 36% at 12% 78%,rgba(14,13,11,.8),rgba(14,13,11,.4) 52%,rgba(14,13,11,0) 100%),radial-gradient(ellipse 34% 20% at 50% 86%,rgba(14,13,11,.55),rgba(14,13,11,0) 100%),linear-gradient(180deg,rgba(14,13,11,.86) 0%,rgba(14,13,11,.6) 24%,rgba(14,13,11,.18) 40%,rgba(14,13,11,0) 48%,rgba(14,13,11,0) 80%,rgba(14,13,11,.4) 100%)}
}

/* usos amplio (22-oct): barra del reparto + 2 grupos de desplegables */
.donde-intro{color:var(--ink2);max-width:72ch;font-size:16.5px;margin:0 0 22px}
.ubarra{display:flex;height:58px;border:1px solid var(--line);margin:0 0 34px;overflow:hidden}
.ub{display:flex;flex-direction:column;justify-content:center;padding:0 10px;min-width:0;border-right:1px solid rgba(0,0,0,.35);transform-origin:left;transform:scaleX(0);transition:transform 1.1s cubic-bezier(.4,.1,.2,1)}
.donde2.in .ub,.donde2.vis .ub{transform:none}
.ub b{font-family:'IBM Plex Mono',monospace;font-size:15px;color:#111;line-height:1.1}
.ub em{font-style:normal;font-size:12px;color:#1b1b1b;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ub.b1{background:#C98A5A}.ub.b2{background:#B79A6A}.ub.b3{background:#A7B0B8}.ub.b4{background:#8E949A}.ub.b5{background:#9C7E35}.ub.b6{background:#6F7377}
.usos-g{font-family:'Montserrat',sans-serif;font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--cu2);margin:6px 0 12px;text-transform:uppercase}
.usos-d+.usos-g{margin-top:28px}
.donde-cierre{color:var(--ink);font-size:17px;max-width:72ch;margin:28px 0 0}
@media (max-width:560px){.ubarra{height:50px}.ub{padding:0 5px}.ub b{font-size:12px}.ub em{display:none}}
@media (prefers-reduced-motion:reduce){.ub{transform:none;transition:none}}
/* portada D: sin los puntos de señalización (pedido de Ramiz 22-oct) */
.pd .hs{display:none!important}
/* portada D en PC: el texto del proyecto también a la derecha, debajo del título (22-oct) */
@media (min-width:761px){
  .pd .hero .row{display:contents}
  .pd .hero .row .lead{align-self:flex-end;text-align:right;max-width:clamp(320px,30vw,470px);margin:clamp(14px,2vh,24px) 0 0}
  .pd .hero .row .btns{position:absolute;left:0;right:0;bottom:clamp(110px,14vh,160px);display:flex;justify-content:center}
  .pd .hero .shade{background:radial-gradient(ellipse 48% 42% at 82% 26%,rgba(14,13,11,.62),rgba(14,13,11,0) 100%),radial-gradient(ellipse 30% 18% at 50% 84%,rgba(14,13,11,.5),rgba(14,13,11,0) 100%),linear-gradient(180deg,rgba(14,13,11,.8) 0%,rgba(14,13,11,.35) 30%,rgba(14,13,11,0) 50%,rgba(14,13,11,0) 82%,rgba(14,13,11,.4) 100%)}
}
/* pruebas de tipografía del título (?t=b|c|d), solo para comparar */
.tb .hero h1 .s{font-weight:500!important;color:#F1ECE2!important}
.tb .hero h1{text-shadow:0 2px 24px rgba(0,0,0,.45)}
.tc .hero h1,.tc .hero h1 .s{font-family:'Archivo',sans-serif!important;font-stretch:72%!important;letter-spacing:-.01em!important;text-transform:uppercase;line-height:.9!important}
.tc .hero h1{font-weight:800!important}
.tc .hero h1 .s{font-weight:400!important;color:#E9E2D4!important}
.tc .hero h1{text-shadow:0 2px 24px rgba(0,0,0,.45)}
.td .hero h1{font-family:'Archivo',sans-serif!important;font-weight:700!important;font-stretch:88%!important;letter-spacing:-.025em!important;text-shadow:0 2px 24px rgba(0,0,0,.45)}
.td .hero h1 .s{font-family:'Newsreader',serif!important;font-style:italic!important;font-weight:400!important;font-stretch:100%!important;letter-spacing:-.01em!important;color:#EADFC8!important}
@media (min-width:761px){.pd .hero .row .lead{margin-bottom:auto!important}.pd .hero .in{justify-content:flex-start!important}}
.tc .hero h1 .ln{padding-top:.12em}
/* portada D: vuelo de dron al bajar + indicador «Desliza» (22-oct) */
.pd .hero .mask{transform-origin:34% 52%;will-change:transform}
@media (max-width:760px){.pd .hero .mask{transform-origin:40% 50%}}
.hero .velo{position:absolute;inset:0;background:#0A1017;opacity:0;pointer-events:none;z-index:1}
.pd .hero .in{z-index:2}
.cue{display:none}
.pd .cue{display:flex;position:absolute;left:50%;bottom:clamp(40px,6vh,64px);transform:translateX(-50%);flex-direction:column;align-items:center;gap:8px;z-index:3;color:#EDE6DA;font:500 11.5px/1 'IBM Plex Mono',monospace;letter-spacing:.18em;text-transform:uppercase;transition:opacity .4s;pointer-events:none}
.pd .cue i{width:1px;height:38px;background:linear-gradient(#EDE6DA,rgba(237,230,218,0));animation:cueBaja 1.8s ease-in-out infinite;transform-origin:top}
.pd .cue.fuera{opacity:0}
@keyframes cueBaja{0%{transform:scaleY(0);opacity:1}60%{transform:scaleY(1);opacity:1}100%{transform:scaleY(1);opacity:0}}
@media (min-width:761px){.pd .hero .row .btns{bottom:clamp(130px,17vh,190px)}}
@media (max-width:760px){.pd .cue{display:none}}
/* portada D en PC: la portada se queda fija mientras el dron se acerca; luego sigue la página */
@media (min-width:761px){
  .pd .hero-pin{height:210vh;position:relative}
  .pd .hero-pin>.hero{position:sticky;top:0;height:100vh;min-height:0}
}
@media (min-width:761px) and (prefers-reduced-motion:reduce){.pd .hero-pin{height:auto}.pd .hero-pin>.hero{position:relative;height:auto;min-height:100svh}}
/* portada D: frase de la oportunidad en el momento oscuro del zoom (PC) */
.frase{display:none}
@media (min-width:761px){
  .pd .frase{display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;position:absolute;inset:0;z-index:3;padding:0 var(--pad);opacity:0;pointer-events:none;--q:0}
  .pd .frase .f1{margin:0;max-width:20ch;font-family:'Archivo',sans-serif;font-stretch:72%;font-weight:800;text-transform:uppercase;font-size:clamp(40px,min(5.6vw,10vh),96px);line-height:.95;color:#F4EFE6;letter-spacing:-.005em;transform:translateY(calc((1 - var(--q))*28px));text-shadow:0 2px 30px rgba(0,0,0,.5)}
  .pd .frase .f1 b{color:var(--cu2);font-weight:800}
  .pd .frase .f2{margin:24px 0 0;max-width:52ch;font-size:clamp(18px,1.5vw,23px);line-height:1.45;color:#E6DECF;opacity:calc(var(--q)*1.6 - .6);transform:translateY(calc((1 - var(--q))*40px));text-shadow:0 1px 14px rgba(0,0,0,.7)}
  .pd .frase small{margin-top:22px;font-size:11.5px;letter-spacing:.06em;color:rgba(230,222,207,.7);opacity:calc(var(--q)*2 - 1)}
  .pd .hero-pin{height:250vh}
}
/* del cerro al concentrado: sin numeración (22-oct, pedido de Ramiz); queda un punto sobre la línea */
.proc figure:before{content:""!important;width:16px!important;height:16px!important;margin-left:-8px!important;top:-55px!important;box-shadow:0 0 0 6px rgba(201,138,90,.18)!important}
@media (max-width:980px){.proc figure:before{display:none!important}}
/* logo A (con minero, pico y pala 80 %) en el encabezado, para que Álvaro lo vea en la web (22-oct) */
header .brand img[src$="logo-a-header.png"]{width:auto!important;height:78px!important;filter:drop-shadow(0 2px 8px rgba(0,0,0,.5))}
header .brand:has(img[src$="logo-a-header.png"]) span{display:none}
@media (max-width:760px){header .brand img[src$="logo-a-header.png"]{height:54px!important}}
/* logo (22-oct, pedido de Ramiz): arriba solo el ícono + nombre al lado; abajo el logo completo */
header .brand img[src$="logo-a-icono.png"]{width:54px!important;height:54px!important;filter:drop-shadow(0 2px 6px rgba(0,0,0,.45))}
@media (max-width:760px){header .brand img[src$="logo-a-icono.png"]{width:42px!important;height:42px!important}}
footer .brand img[src$="logo-a-completo-pie.png"]{width:auto!important;height:120px!important;border-radius:0!important}
footer .brand:has(img[src$="logo-a-completo-pie.png"]) span{display:none}
/* logo ORIGINAL de Álvaro (22-oct): ícono arriba; abajo logo completo + nombre al lado */
header .brand img[src$="logo-b-icono.png"]{width:54px!important;height:54px!important;filter:drop-shadow(0 2px 6px rgba(0,0,0,.45))}
@media (max-width:760px){header .brand img[src$="logo-b-icono.png"]{width:42px!important;height:42px!important}}
footer .brand{gap:26px!important;align-items:center}
footer .brand img[src$="logo-b-completo-pie.png"]{width:auto!important;height:130px!important;border-radius:0!important}
footer .brand:has(img[src$="logo-b-completo-pie.png"]) span{display:block!important}
footer .brand:has(img[src$="logo-b-completo-pie.png"]) b{font-family:'Archivo',sans-serif;font-stretch:72%;font-weight:800;font-size:38px;letter-spacing:.01em;line-height:1;color:#F4EFE6}
footer .brand:has(img[src$="logo-b-completo-pie.png"]) small{display:block!important;font-size:12.5px;letter-spacing:.34em;color:#C9A85A;margin-top:8px}
@media (max-width:760px){footer .brand img[src$="logo-b-completo-pie.png"]{height:96px!important}footer .brand:has(img[src$="logo-b-completo-pie.png"]) b{font-size:28px}footer .brand:has(img[src$="logo-b-completo-pie.png"]) small{font-size:10px;letter-spacing:.22em}}

/* gráfica del estaño: al pasar el mouse o tocar, muestra el precio de ese día (22-oct) */
.sn-gw{position:relative}
.sn-graf[data-pts]{cursor:crosshair;touch-action:pan-y}
.sn-lv{stroke:rgba(244,239,230,.35);stroke-width:1;stroke-dasharray:3 3}
.sn-lp{fill:#0D141C;stroke:#E0A57A;stroke-width:2.4}
.sn-tip{position:absolute;z-index:3;pointer-events:none;background:rgba(10,16,23,.94);border:1px solid rgba(224,165,122,.45);padding:7px 10px;border-radius:3px;white-space:nowrap;font:12px/1.35 'IBM Plex Mono',monospace;color:var(--ink2)}
.sn-tip b{display:block;color:#F4EFE6;font:700 14px/1.2 'IBM Plex Mono',monospace}
.sn-graf .sn-hoy{animation:snLatido 2.2s ease-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes snLatido{0%{filter:drop-shadow(0 0 0 rgba(224,165,122,.8))}70%{filter:drop-shadow(0 0 7px rgba(224,165,122,0))}100%{filter:none}}
.opo-vis .sn-graf[data-pts]{cursor:default}
@media (prefers-reduced-motion:reduce){.sn-graf .sn-hoy{animation:none}}

/* formulario: trampa para bots y mensaje de error (22-oct) */
.trampa{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
#form .err{color:#F2A08A;border:1px solid rgba(242,160,138,.4);padding:12px 14px;font-size:15px}
#form button[disabled]{opacity:.7;cursor:wait}