html{-webkit-text-size-adjust:100%}body{margin:0}img{max-width:100%}[hidden]{display:none!important}

/* Layout: una sola columna de lectura (760px) bajo una barra fija con las secciones de la web; cada sección es una ventana aparte. */
:root{
  --hero:#202226; --hero-fg:#f5f5f3; --hero-muted:#b9bcc0; --hill1:#2c2f34; --hill2:#3a3d43; --ground:#141517; --van:#ecece9;
  --bg:#f9f9f8; --surface:#ffffff; --ink:#1f2124; --muted:#666a70; --line:#e4e4e2; --field:#fafaf9;
  --gold:#8a6400; --gold-fill:#d9a916; --on-gold:#1d1600; --head:#eeeeec; --head-fg:#1f2124; --head-muted:#666a70; --warn:#b3261e;
  --f-body:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-data:var(--f-body);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#161719; --surface:#202226; --ink:#ececea; --muted:#a1a5aa; --line:#34373c; --field:#191b1e;
  --gold:#e6bf4a; --gold-fill:#d9a916; --on-gold:#1d1600; --head:#0f1011; --head-fg:#f2f2f1; --head-muted:#a9adb2; --warn:#ff8a80; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#161719; --surface:#202226; --ink:#ececea; --muted:#a1a5aa; --line:#34373c; --field:#191b1e;
  --gold:#e6bf4a; --gold-fill:#d9a916; --on-gold:#1d1600; --head:#0f1011; --head-fg:#f2f2f1; --head-muted:#a9adb2; --warn:#ff8a80; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font:400 16px/1.55 var(--f-body)}
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--head);color:var(--head-fg);padding-inline:16px;border-bottom:3px solid var(--gold-fill)}
.top-in{max-width:760px;margin-inline:auto;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:4px 20px;padding-block:10px}
.brand{font-family:"Sora","Manrope",system-ui,sans-serif;font-size:1.25rem;letter-spacing:-.03em;text-decoration:none;color:var(--head-fg);display:flex;align-items:baseline}
.brand b{font-weight:800;color:var(--gold)}
.brand span{font-weight:400}
nav{display:flex;flex-wrap:wrap;gap:2px}
nav a{color:var(--head-muted);text-decoration:none;font-size:.92rem;padding:6px 10px;border-radius:6px}
nav a:hover{color:var(--head-fg)}
nav a[aria-current="page"]{color:var(--on-gold);background:var(--gold-fill);font-weight:500}
main{max-width:760px;margin-inline:auto;padding-inline:16px;padding-block:32px 56px}
.view{display:flex;flex-direction:column;gap:20px}
h1,h2,h3{margin:0;font-weight:700;line-height:1.2;text-wrap:balance}
h1{font-size:clamp(1.7rem,4.5vw,2.2rem);letter-spacing:-.01em}
h2{font-size:1.15rem}
h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:500}
p{margin:0;max-width:65ch}
.lead{color:var(--muted);font-size:1.05rem}
.intro{display:flex;flex-direction:column;gap:10px;padding-bottom:4px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:22px;display:flex;flex-direction:column;gap:16px;min-width:0}
.step{display:flex;flex-direction:column;gap:2px}
.step b{font:700 .72rem var(--f-body);text-transform:uppercase;letter-spacing:.09em;color:var(--gold)}
.step b::before{content:var(--paso,"Paso ")}
label{font-size:.78rem;color:var(--muted);display:flex;flex-direction:column;gap:4px;min-width:0}
input,select,button{font:inherit;color:var(--ink)}
input,select{background:var(--field);border:1px solid var(--line);padding:8px 9px;width:100%;min-width:0;border-radius:6px}
input[type=number]{font-family:var(--f-data);font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--gold-fill);outline-offset:2px}
button{cursor:pointer;border:1px solid var(--line);background:var(--surface);padding:8px 14px;border-radius:6px;font-weight:500}
button.primary{background:var(--gold-fill);border-color:var(--gold-fill);color:var(--on-gold)}
button.del{color:var(--muted);padding:8px 10px;align-self:end}
.rows{display:flex;flex-direction:column;gap:12px}
.row{display:grid;grid-template-columns:minmax(0,2.2fr) repeat(4,minmax(0,1fr)) auto;gap:8px;padding-bottom:12px;border-bottom:1px solid var(--line)}
@media (max-width:600px){.row{grid-template-columns:repeat(4,minmax(0,1fr))}.row .name{grid-column:1/-1}.row .del{grid-column:1/-1;justify-self:start}}
.bar{display:flex;flex-wrap:wrap;gap:8px;align-items:end}
.bar label{flex:1 1 220px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.note{font-size:.88rem;color:var(--muted)}
.spec{display:grid;grid-template-columns:minmax(0,1fr) auto;margin:0}
.spec dt,.spec dd{padding:11px 0;border-bottom:1px solid var(--line)}
.spec dt{color:var(--muted);min-width:0}
.spec dd{margin:0;font:500 1.05rem var(--f-data);font-variant-numeric:tabular-nums;text-align:right;padding-left:16px}
.spec .big{font-size:1.5rem;color:var(--gold)}
.split{display:flex;height:8px;background:var(--line);border-radius:4px;overflow:hidden}
.split span{background:var(--gold-fill)}
.tw{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.92rem}
th,td{padding:9px 8px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
th:first-child,td:first-child{text-align:left;white-space:normal;padding-left:0}
th{font-size:.75rem;color:var(--muted);font-weight:500}
td{font-family:var(--f-data);font-variant-numeric:tabular-nums}
td:first-child{font-family:var(--f-body)}
.verdict{background:var(--field);border:1px solid var(--line);border-left:4px solid var(--gold-fill);border-radius:6px;padding:12px 14px;font-weight:500;max-width:none}
.verdict:empty{display:none}
.warn{color:var(--warn);font-size:.92rem}
.buy{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.buy li{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 16px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.buy .what{min-width:0;display:flex;flex-direction:column}
.buy .what small{color:var(--muted);font-size:.84rem}
.buy .val{font:600 1rem var(--f-data);font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}
.buy li.alt{border-bottom:0;border-top:2px solid var(--gold-fill);margin-top:-1px;padding-bottom:0}
.buy li.alt .what>span{font-weight:600}
.buy li.empty{display:block;color:var(--muted);border-bottom:0}

.posts{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.posts li{display:flex;justify-content:space-between;gap:16px;align-items:baseline;padding:14px 0;border-bottom:1px solid var(--line)}
.posts span{font:500 .72rem var(--f-data);color:var(--gold);white-space:nowrap}
a.link{color:var(--gold);font-weight:500}
.lang{position:relative}
.lang .menu-btn{font-weight:600;border:1px solid var(--line);padding:5px 9px}
.lang .panel{left:auto;right:0;width:180px}
.lang .panel-in{grid-template-columns:minmax(0,1fr);padding:6px}
.lang .panel-in button{border:0;background:none;text-align:left;padding:9px 12px;border-radius:8px;font-weight:500}
.lang .panel-in button:hover{background:var(--field)}
.lang .panel-in button[aria-pressed="true"]{background:var(--gold-fill);color:var(--on-gold)}
.learn h3{margin-top:10px}
.errs{margin:0;padding-left:1.1em;display:flex;flex-direction:column;gap:8px;max-width:65ch}
.errs li::marker{color:var(--gold)}
.learn .faq{display:flex;flex-direction:column}
.posts a{color:var(--ink);text-decoration:none;font-weight:600;transition:color .18s}
.posts a:hover{color:var(--gold)}
.post{gap:14px}
.post h1{font-size:clamp(1.6rem,4.2vw,2.1rem)}
.post h2{font-size:1.2rem;margin-top:14px}
.post .meta{font-size:.85rem;color:var(--muted)}
.post ul{margin:0;padding-left:1.1em;display:flex;flex-direction:column;gap:8px;max-width:65ch}
.post li::marker{color:var(--gold)}
.post th,.post td{white-space:normal;text-align:left;font-family:var(--f-body)}
.post td:first-child{font-weight:600}
.faq{gap:0}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq details:first-child{padding-top:0}
.faq details:last-child{border-bottom:0;padding-bottom:0}
.faq summary{cursor:pointer;font-weight:700;font-size:1.02rem;list-style:none;display:flex;justify-content:space-between;gap:16px;transition:color .18s}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--gold);font-weight:700;font-size:1.2rem;line-height:1;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq summary:hover{color:var(--gold)}
.faq p{margin-top:8px;color:var(--muted)}
/* --- movimiento --- */
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes ring{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--gold-fill) 70%,transparent);transform:scale(.92)}100%{box-shadow:0 0 0 14px transparent;transform:none}}
@keyframes flash{0%{background:color-mix(in srgb,var(--gold-fill) 45%,transparent);transform:translateY(-12px);opacity:0}30%{opacity:1;transform:none}100%{background:transparent}}
@keyframes glow{50%{transform:scale(1.12);opacity:.26}}
@keyframes drive{from{transform:translateX(-60px);opacity:0}to{transform:none;opacity:1}}
.view:not([hidden])>*{animation:rise .5s cubic-bezier(.2,.7,.2,1) both}
.view>*:nth-child(2){animation-delay:.06s}.view>*:nth-child(3){animation-delay:.12s}.view>*:nth-child(4){animation-delay:.18s}.view>*:nth-child(5){animation-delay:.24s}.view>*:nth-child(n+6){animation-delay:.3s}
details[open]>*:not(summary){animation:rise .3s both}
.res,.buy li,#station>*,#a-spec>*,#r-spec>*,#c-table tr{animation:rise .45s both}
.res:nth-child(2),.buy li:nth-child(2){animation-delay:.07s}.res:nth-child(3),.buy li:nth-child(3){animation-delay:.14s}.res:nth-child(4),.buy li:nth-child(4){animation-delay:.21s}.res:nth-child(n+5),.buy li:nth-child(n+5){animation-delay:.28s}
button,input,select,.card,.item{transition:background .18s,border-color .18s,color .18s,transform .12s,box-shadow .22s}
button:active{transform:scale(.95)}
button.primary:hover{box-shadow:0 6px 18px color-mix(in srgb,var(--gold-fill) 45%,transparent);transform:translateY(-1px)}
.card:focus-within{border-color:color-mix(in srgb,var(--gold-fill) 60%,var(--line));box-shadow:0 8px 28px rgb(0 0 0 / .06)}
.top{backdrop-filter:blur(12px);background:color-mix(in srgb,var(--head) 86%,transparent)}
/* --- portada --- */
#v-inicio{text-align:center;gap:32px}
#v-inicio p{margin-inline:auto}
.center{text-align:center;font-size:1.5rem;scroll-margin-top:100px}
.hero{position:relative;overflow:hidden;border-radius:24px;background:var(--hero);color:var(--hero-fg);display:flex;flex-direction:column;align-items:center;gap:14px;padding:56px 20px calc(37.5% + 28px)}
@media (min-width:1100px){.hero{margin-inline:-140px}}
.hero>*:not(.scene){position:relative;z-index:1}
.wordmark{font-family:"Sora","Manrope",system-ui,sans-serif;font-size:clamp(2.8rem,11vw,5rem);letter-spacing:-.04em;line-height:1}
.wordmark b{font-weight:800;color:var(--gold-fill)}
.wordmark span{font-weight:400}
.hero p{color:var(--hero-muted);font-size:1.1rem;max-width:34ch}
.hero .primary{border-radius:999px;padding:11px 24px}
.scene{position:absolute;left:0;right:0;bottom:0;width:100%;height:auto;overflow:visible}
.scene .glow{transform-origin:610px 150px;animation:glow 5s ease-in-out infinite}
.scene .van{animation:drive 1.2s cubic-bezier(.2,.7,.2,1) .2s both}
.orbs{display:flex;flex-wrap:wrap;justify-content:center;gap:32px 24px}
.orb{width:200px;display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;color:var(--ink)}
@media (max-width:520px){.orb{width:calc(50% - 12px)}}
.ball{width:124px;height:124px;background:var(--surface);border:1px solid var(--line);margin-bottom:10px}
.ball svg{width:50px;height:50px}
.orb:hover .ball,.orb:focus-visible .ball{background:var(--gold-fill);border-color:var(--gold-fill);color:var(--on-gold);transform:translateY(-8px) scale(1.06);box-shadow:0 16px 34px color-mix(in srgb,var(--gold-fill) 40%,transparent)}
.orb:active .ball{transform:scale(.96)}
.orb b{font-weight:700;line-height:1.3}
.orb small{color:var(--muted);font-size:.84rem}
.quick{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;text-align:left}
@media (max-width:760px){.quick{grid-template-columns:minmax(0,1fr)}}
.qcard{display:flex;align-items:flex-start;gap:14px;padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:16px;text-decoration:none;color:var(--ink);transition:border-color .2s,transform .2s,box-shadow .2s}
.qcard i{width:48px;height:48px;flex:none;display:grid;place-items:center;border-radius:50%;background:var(--field);border:1px solid var(--line);color:var(--gold);transition:background .22s,color .22s,border-color .22s,transform .22s}
.qcard i svg{width:24px;height:24px}
.qcard span{display:flex;flex-direction:column;gap:4px;min-width:0}
.qcard b{font-weight:700;font-size:1.05rem}
.qcard small{color:var(--muted);font-size:.86rem;line-height:1.45}
.qcard:hover,.qcard:focus-visible{border-color:var(--gold-fill);transform:translateY(-4px);box-shadow:0 14px 30px rgb(0 0 0 / .08)}
.qcard:hover i,.qcard:focus-visible i{background:var(--gold-fill);border-color:var(--gold-fill);color:var(--on-gold);transform:scale(1.08)}
.qcard:active{transform:scale(.98)}
footer{text-align:center}
footer p{margin-inline:auto}
.tool small{font-size:.75rem;text-transform:uppercase;letter-spacing:.07em;color:var(--gold);font-weight:600;order:-1}
.qt,.q{font-size:1rem;font-weight:600;color:var(--ink)}
.q{gap:8px}
.q small{font-weight:400;font-size:.85rem;color:var(--muted)}
.grid .q,.grid label:has(.seg){grid-column:1/-1}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg button{padding:9px 16px;font-weight:500;font-size:.95rem;background:var(--field)}
.seg button[aria-pressed="true"]{background:var(--gold-fill);border-color:var(--gold-fill);color:var(--on-gold);font-weight:600}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.pick{display:flex;flex-wrap:wrap;gap:8px}
.pick button{border-radius:999px;padding:7px 14px;font-size:.92rem;background:var(--field)}
.pick button::before{content:"+ ";color:var(--gold);font-weight:700}
.pick button.other{border-style:dashed}
.pick button:hover{background:var(--gold-fill);border-color:var(--gold-fill);color:var(--on-gold)}
.pick button:hover::before,.pick button.hit::before{color:var(--on-gold)}
.pick button.hit{background:var(--gold-fill);border-color:var(--gold-fill);color:var(--on-gold);animation:ring .6s ease-out}
.pick button.hit::before{content:"✓ "}
.item:hover{border-color:var(--gold-fill)}
.item.new{animation:flash .9s ease-out}
.item{border:1px solid var(--line);border-radius:10px;padding:14px;display:flex;flex-direction:column;gap:12px}
.item-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.item-top strong{font-weight:700;min-width:0}
.item-top span{color:var(--muted);font-size:.85rem;white-space:nowrap}
.item-ctl{display:flex;flex-wrap:wrap;gap:10px 20px;align-items:end}
.stp{display:flex;flex-direction:column;gap:4px;font-size:.78rem;color:var(--muted)}
.stp div{display:flex;gap:4px}
.stp button{width:38px;padding:8px 0;font-size:1.1rem;line-height:1}
.stp input{width:64px;text-align:center}
.item-act{display:flex;gap:6px;margin-left:auto}
@media (max-width:480px){.item-ctl{gap:10px 12px}.stp button{width:34px}.stp input{width:52px;padding-inline:4px}}
.item-act button{font-size:.85rem;padding:8px 10px;color:var(--muted)}
.item-edit{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,1fr);gap:8px}
@media (max-width:480px){.item-edit{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.item-edit .name{grid-column:1/-1}}
.adv{border-top:1px solid var(--line);padding-top:12px}
.adv summary{cursor:pointer;font-weight:600;font-size:.92rem;color:var(--muted)}
.adv[open]{display:flex;flex-direction:column;gap:14px}
.reslist{display:flex;flex-direction:column}
.res{display:grid;grid-template-columns:minmax(96px,auto) minmax(0,1fr);gap:16px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.res>strong{font-size:1.45rem;font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums;white-space:nowrap}
.res div{display:flex;flex-direction:column;min-width:0}
.res b{font-weight:600}
.res span{color:var(--muted);font-size:.9rem}
.top-in{position:relative}
@media (max-width:480px){nav a,.menu summary{font-size:.85rem;padding:6px 7px}}
.menu-btn{background:none;border:0;color:var(--head-muted);font-size:.92rem;padding:6px 10px;border-radius:6px;font-weight:400}
.menu-btn::after{content:" ▾"}
.menu-btn:hover{color:var(--head-fg)}
.menu.current .menu-btn{color:var(--on-gold);background:var(--gold-fill);font-weight:500}
.menu .panel{position:absolute;left:0;right:0;top:100%;padding-top:10px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .22s,transform .22s,visibility .22s}
.menu:hover .panel,.menu:focus-within .panel,.menu.open .panel{opacity:1;visibility:visible;transform:none}
.menu.shut .panel{opacity:0;visibility:hidden;transform:translateY(-8px)}
.panel-in{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:10px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;box-shadow:0 18px 44px rgb(0 0 0 / .16)}
@media (max-width:600px){.panel-in{grid-template-columns:minmax(0,1fr)}}
.menu .panel a{display:flex;align-items:center;gap:14px;padding:12px;border-radius:12px;color:var(--ink);font-size:1rem;transition:background .18s}
.menu .panel a i,.ball{display:grid;place-items:center;border-radius:50%;color:var(--gold);transition:background .22s,color .22s,transform .22s,box-shadow .22s}
.menu .panel a i{width:48px;height:48px;background:var(--field);border:1px solid var(--line);flex:none}
.menu .panel a i svg{width:24px;height:24px}
.menu .panel a span{display:flex;flex-direction:column;min-width:0}
.menu .panel a b{font-weight:700}
.menu .panel a small{color:var(--muted);font-size:.84rem}
.menu .panel a:hover,.menu .panel a[aria-current="page"]{background:var(--field);color:var(--ink)}
.menu .panel a:hover i,.menu .panel a[aria-current="page"] i{background:var(--gold-fill);border-color:var(--gold-fill);color:var(--on-gold);transform:scale(1.08)}
.tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.tool{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:18px;display:flex;flex-direction:column;gap:8px;text-decoration:none;color:var(--ink);min-width:0}
.tool:hover{border-color:var(--gold-fill)}
.tool strong{font-size:1.05rem;font-weight:700}
.tool span{color:var(--muted);font-size:.92rem;flex:1}
.tool em{font-style:normal;font-weight:600;font-size:.88rem;color:var(--gold)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips button{font-size:.88rem;padding:6px 12px;border-radius:999px}
.chips button[aria-pressed="true"]{background:var(--gold-fill);border-color:var(--gold-fill);color:var(--on-gold)}
.cmp td,.cmp th{width:33%}
.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:600px){.grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}}
.f{display:flex;flex-direction:column;gap:8px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.f:last-child{border-bottom:0;padding-bottom:0}
.f .m{overflow-x:auto;padding:6px 0}
math{font-size:1.2rem}
.help{font-size:.85rem;color:var(--muted)}
.step+.help{margin-top:-12px}
.help summary{cursor:pointer;display:inline-block;list-style:none;text-decoration:underline dotted;text-underline-offset:3px}
.help summary::-webkit-details-marker{display:none}
.help summary::after{content:" +"}
.help[open] summary::after{content:" −"}
.help p{margin-top:6px}
.calcbar{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.calcbar button{font-size:1.05rem;padding:12px 32px}
.stale{background:var(--field);border:1px solid var(--gold-fill);border-radius:6px;padding:9px 12px;font-size:.9rem;max-width:none}
.results{scroll-margin-top:90px}
footer{font-size:.85rem;color:var(--muted);border-top:1px solid var(--line);margin-top:28px;padding-top:16px;display:flex;flex-direction:column;gap:8px}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

.lang .panel-in a{padding:9px 12px;border-radius:8px;font-weight:500;font-size:.95rem}
.lang .panel-in a[aria-current="true"]{background:var(--gold-fill);color:var(--on-gold)}