/* Potosí Coin Collection — sitio estático, sin dependencias externas */
:root{--ink:#122a37;--navy:#102b3b;--navy2:#16374b;--gold:#c8aa70;--gold2:#e2c992;--paper:#f7f4ef;--cream:#ede7dc;--muted:#677783;--white:#fff;--green:#176b55;--line:#e0d9cf;--shadow:0 18px 54px rgba(18,42,55,.11)}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button{font:inherit}a:focus-visible,summary:focus-visible{outline:3px solid #c2a15d;outline-offset:4px;border-radius:3px}
.container{width:min(1160px,calc(100% - 44px));margin-inline:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.eyebrow{font-size:.76rem;letter-spacing:.22em;text-transform:uppercase;font-weight:800}.eyebrow.gold{color:var(--gold2)}
.topline{background:#0c222e;color:#d8dfdf;font-size:.72rem;letter-spacing:.09em;padding:8px 0;text-align:center}
.site-header{position:relative;z-index:20;background:rgba(247,244,239,.98);border-bottom:1px solid var(--line)}
.header-inner{min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:none;font-family:Georgia,'Times New Roman',serif;color:var(--navy);font-weight:bold;line-height:1.12;font-size:1.26rem;letter-spacing:.01em}
.brand small{display:block;color:#a08350;font:700 .62rem Arial,sans-serif;letter-spacing:.25em;margin-top:6px}
.brand-mark{height:48px;width:48px;border:2px solid #b79658;outline:1px solid #b79658;outline-offset:3px;border-radius:50%;display:grid;place-items:center;color:#987847;font:700 1.25rem Georgia,serif}
.desktop-nav{display:flex;gap:22px;align-items:center;font-size:.85rem;font-weight:700}.desktop-nav a:not(.nav-contact){padding:10px 0;white-space:nowrap}.desktop-nav a:hover,.desktop-nav a[aria-current='page']{color:#987545}
.nav-contact{background:var(--navy);color:#fff;padding:10px 17px;border-radius:4px;white-space:nowrap}.nav-contact:hover{background:#25516a}
.mobile-nav{display:none}.mobile-nav summary{cursor:pointer;font-weight:700;padding:8px 12px;border:1px solid var(--line);border-radius:4px;list-style:none}.mobile-nav summary::-webkit-details-marker{display:none}.mobile-nav[open] .menu-panel{position:absolute;top:calc(100% - 1px);left:0;right:0;background:var(--paper);border-top:1px solid var(--line);box-shadow:var(--shadow);padding:14px 22px 22px;display:grid;gap:5px}.menu-panel a{display:block;padding:9px;font-weight:700;border-bottom:1px solid var(--line)}
h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:Georgia,'Times New Roman',serif;line-height:1.12;font-weight:500}h1{font-size:clamp(2.65rem,5vw,5.2rem);letter-spacing:-.038em}h2{font-size:clamp(2.05rem,3.5vw,3.45rem);letter-spacing:-.028em}h3{font-size:1.48rem}p{color:#556977}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 80% 28%,#25516a 0%,#183b50 32%,#0e293a 77%);color:#fff}
.hero:before{content:'';pointer-events:none;position:absolute;inset:0;opacity:.24;background-image:repeating-linear-gradient(90deg,transparent,transparent 85px,rgba(255,255,255,.08) 86px)}
.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);align-items:center;gap:14px;min-height:620px;padding:70px 0 66px}
.hero h1{margin:19px 0 24px}.hero h1 em{font-weight:400;font-style:normal;color:var(--gold2)}
.hero .intro{max-width:575px;font-size:1.11rem;color:#d6e0e4;line-height:1.83;margin-bottom:28px}
.kicker{display:flex;align-items:center;gap:12px;color:var(--gold2)}.kicker:before{content:'';height:1px;width:35px;background:var(--gold2)}
.action-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:11px;padding:14px 21px;border-radius:4px;font-weight:800;font-size:.91rem;line-height:1.35;transition:background .2s ease,transform .2s ease}
.btn:hover{transform:translateY(-2px)}.btn-wa{background:var(--green);color:#fff}.btn-wa:hover{background:#0f8464}.btn-outline{border:1px solid #a6bac4;color:#fff}.btn-outline:hover{background:rgba(255,255,255,.1)}.btn-dark{background:var(--navy);color:#fff}.btn-dark:hover{background:#25516a}
.btn svg{width:19px;height:19px;fill:currentColor;flex:none}
.hero-note{font-size:.84rem;color:#adc0cb;margin-top:22px}
.hero-visual{position:relative;min-width:0}.hero-visual img{width:110%;max-width:none;transform:translateX(-3%);filter:drop-shadow(0 34px 33px rgba(0,0,0,.16))}
.metrics{background:#eae3d8;border-bottom:1px solid #ddd0bd}.metrics-inner{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:22px 0}.metric{text-align:center;border-right:1px solid #d1c5b4;font-size:.91rem;font-weight:700;color:#3a4c56}.metric:last-child{border:none}.metric span{color:#ac8654;margin-right:8px}
.section{padding:100px 0}.section-cream{background:#f0ece5}.section-heading{max-width:720px;margin-bottom:42px}.section-heading .eyebrow{color:#ac8854;margin-bottom:14px;display:block}.section-heading p{font-size:1.07rem;max-width:670px}
.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.category-card{background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;transition:box-shadow .25s,transform .25s}.category-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.category-art{background:#e9e2d5;aspect-ratio:1.22/1;padding:20px;display:flex;align-items:center;justify-content:center;overflow:hidden}.category-art img{height:100%;width:100%;object-fit:contain;transition:transform .25s}.category-card:hover .category-art img{transform:scale(1.06)}
.card-body{padding:24px 23px 27px;display:flex;flex:1;flex-direction:column}.card-body h3{font-size:1.46rem;margin:0 0 11px}.card-body p{font-size:.92rem;flex:1}.text-link{font-size:.85rem;text-transform:uppercase;font-weight:800;letter-spacing:.07em;color:#8c6f42;margin-top:10px}.text-link:hover{color:#43300e}
.two-up{display:grid;grid-template-columns:1fr 1fr;gap:9%;align-items:center}.fine-rule{width:75px;height:2px;background:#b4935d;margin:24px 0 22px}.section-copy p{font-size:1.05rem}.bullets{list-style:none;padding:0;margin:23px 0;display:grid;gap:14px}.bullets li{padding-left:27px;position:relative;font-size:.97rem}.bullets li:before{content:'✦';position:absolute;left:0;color:#b38c51}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:42px}.step{padding:31px 29px;background:#fff;border:1px solid var(--line)}.step-index{font:500 2.6rem Georgia,serif;color:#b59867;display:block;margin-bottom:12px}.step h3{margin-bottom:12px}.step p{font-size:.95rem;margin:0}
.highlight-panel{background:linear-gradient(125deg,#112d3e,#1f4658);color:#fff;padding:54px 57px;position:relative;overflow:hidden}.highlight-panel:before{position:absolute;content:'';height:290px;width:290px;right:-130px;top:-120px;border:1px solid rgba(224,194,135,.37);border-radius:50%;box-shadow:0 0 0 32px rgba(224,194,135,.04),0 0 0 73px rgba(224,194,135,.035)}.highlight-panel p{color:#c8d6dc;max-width:690px}.highlight-panel h2{max-width:720px}.highlight-panel .eyebrow{color:var(--gold2)}.highlight-panel .action-row{margin-top:26px}
.faq-list{display:grid;gap:10px;max-width:870px}.faq-list details{background:#fff;border:1px solid var(--line);padding:0 24px}.faq-list summary{cursor:pointer;list-style:none;padding:20px 26px 20px 0;font-size:1.01rem;font-weight:750;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:0;font:500 1.4rem Georgia,serif;color:#9c7b4b}.faq-list details[open] summary:after{content:'−'}.faq-list details p{padding-bottom:20px;margin:0;max-width:740px;font-size:.94rem}
.footer{background:#0c2431;color:#d5e0e5;padding:60px 0 28px}.footer-content{display:grid;grid-template-columns:1.3fr .85fr 1fr;gap:38px}.footer p{color:#b4c4ca;font-size:.9rem}.footer .brand{color:#fff}.footer-links{display:grid;gap:7px;font-size:.9rem}.footer-links a:hover{color:var(--gold2)}.footer h3{font:700 .85rem Arial,sans-serif;text-transform:uppercase;letter-spacing:.13em;color:#d6bb85;margin-bottom:17px}.footer-bottom{padding-top:25px;margin-top:40px;border-top:1px solid rgba(255,255,255,.16);font-size:.78rem;color:#a9b8bd;display:flex;justify-content:space-between;gap:22px;flex-wrap:wrap}
.float-wa{position:fixed;z-index:30;bottom:23px;right:23px;display:grid;place-items:center;width:60px;height:60px;border-radius:50%;background:#167c58;color:#fff;box-shadow:0 8px 30px rgba(0,0,0,.24);border:3px solid #fff}.float-wa svg{width:29px;height:29px;fill:currentColor}.float-wa:hover{background:#0c9a67}
/* Páginas interiores */
.subhero{background:radial-gradient(circle at 90% 15%,#24495e,#102b3b 68%);padding:76px 0 83px;color:#fff;overflow:hidden}.subhero .container{display:grid;grid-template-columns:1.2fr .8fr;align-items:center;gap:50px}.subhero h1{font-size:clamp(2.65rem,4.1vw,4.8rem);margin:16px 0 21px}.subhero h1 em{font-style:normal;color:var(--gold2)}.subhero p{font-size:1.09rem;color:#d4e0e4;max-width:640px}.subhero-art{width:100%;max-height:320px;object-fit:contain}.crumbs{font-size:.78rem;letter-spacing:.07em;color:#9cb1bd}.crumbs a:hover{text-decoration:underline}.editorial{padding:80px 0}.editorial-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(270px,.75fr);gap:64px}.prose{font-size:1.04rem}.prose h2{font-size:2.3rem;margin-top:36px;margin-bottom:18px}.prose h3{font-size:1.5rem;margin-top:30px}.prose p{line-height:1.86}.prose ul{color:#556977;padding-left:21px}.prose li{margin-bottom:9px}.aside-box{background:#fff;border:1px solid var(--line);padding:30px;position:sticky;top:26px}.aside-box h3{font-size:1.6rem}.aside-box p{font-size:.93rem}.aside-box .btn{width:100%;font-size:.83rem;padding:14px 10px}.aside-box .small-note{font-size:.79rem;color:#75848d;margin-top:16px}.related{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.related a{background:#fff;border:1px solid var(--line);padding:23px;font-weight:700}.related a:hover{border-color:#af8d59;color:#80643d}
@media(max-width:1050px){.desktop-nav{gap:13px;font-size:.77rem}.brand{font-size:1.08rem}.cards{grid-template-columns:repeat(2,1fr)}.category-art{aspect-ratio:1.6/1}.hero-inner{min-height:540px}}
@media(max-width:760px){.container{width:min(100% - 36px,1160px)}.desktop-nav{display:none}.mobile-nav{display:block}.header-inner{min-height:75px}.brand-mark{height:40px;width:40px;font-size:1.1rem}.brand{font-size:1.1rem}.hero-inner{grid-template-columns:1fr;gap:8px;padding:59px 0 20px;min-height:unset}.hero h1{font-size:clamp(2.7rem,10vw,4.25rem)}.hero .intro{font-size:1rem}.hero-visual img{width:100%;transform:none;max-height:290px}.hero-visual{display:flex;justify-content:center}.metrics-inner{gap:9px;padding:17px 0}.metric{font-size:.74rem;line-height:1.4;padding:0 4px}.metric span{display:block;margin:0 0 3px}.section{padding:68px 0}.cards{gap:15px}.two-up{grid-template-columns:1fr;gap:34px}.steps{grid-template-columns:1fr;gap:13px}.step{padding:23px}.highlight-panel{padding:34px 24px}.footer-content{grid-template-columns:1fr 1fr;gap:30px}.footer-content>div:first-child{grid-column:1/-1}.subhero{padding:49px 0 53px}.subhero .container{grid-template-columns:1fr;gap:12px}.subhero-art{max-height:210px}.editorial{padding:55px 0}.editorial-grid{grid-template-columns:1fr;gap:29px}.aside-box{position:static}.related{grid-template-columns:1fr}}
@media(max-width:480px){.topline{font-size:.66rem;padding:7px 12px}.hero h1{font-size:2.6rem}.btn{width:100%;text-align:center}.cards{grid-template-columns:1fr}.category-art{aspect-ratio:1.75/1}.card-body{padding:19px}.metrics-inner{grid-template-columns:1fr;gap:4px;padding:15px 0}.metric{border:0;display:flex;justify-content:center;gap:5px}.metric span{display:inline}.footer-content{grid-template-columns:1fr}.footer-content>div:first-child{grid-column:auto}.float-wa{width:54px;height:54px;right:15px;bottom:15px}.hero-visual img{max-height:255px}.section-heading h2{font-size:2.1rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}