/* SacaCuentas · hoja de estilos */
:root{
  --bg:#F3F6FB; --surface:#FFFFFF; --ink:#13203B; --muted:#55627D; --line:#D9E0EC;
  --accent:#2340B0; --accent-ink:#FFFFFF; --mark:#F4C430; --mark-ink:#13203B;
  --warn:#8A5200; --warn-bg:#FFF4DC; --soft:#E7ECF8;
  --display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --body:"Atkinson Hyperlegible","Segoe UI",system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#0E1424; --surface:#172036; --ink:#E8EDF7; --muted:#9AA6C0; --line:#2A3655;
  --accent:#8AA2FF; --accent-ink:#0E1424; --mark:#F4C430; --mark-ink:#13203B;
  --warn:#FFCF7A; --warn-bg:#3A2C10; --soft:#1F2A45; color-scheme:dark}}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.55}
img{max-width:100%}
a{color:var(--accent)}
[hidden]{display:none!important}
.g{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.in{max-width:1040px;margin:0 auto}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:8px;background:var(--surface);padding:8px 12px;border-radius:8px;z-index:9}

/* encabezado */
.bar{background:var(--surface);border-bottom:1px solid var(--line);padding-block:12px}
.bar .in{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 16px}
.brand{display:flex;flex-direction:column;text-decoration:none;color:var(--ink);line-height:1.1}
.brand .w{font-family:var(--display);font-weight:800;font-size:1.4rem;letter-spacing:-.01em}
.brand .w b{background:var(--mark);color:var(--mark-ink);padding:0 6px;border-radius:4px;margin-right:1px}
.brand small{color:var(--muted);font-size:.74rem;letter-spacing:.02em;margin-top:3px}
.nav{display:flex;gap:4px;overflow-x:auto;max-width:100%;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.nav::-webkit-scrollbar{display:none}
.nav a{white-space:nowrap;text-decoration:none;color:var(--muted);font-size:.88rem;padding:6px 11px;border-radius:999px;border:1px solid transparent}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]{background:var(--soft);color:var(--ink);border-color:var(--line);font-weight:700}

/* contenido */
main{padding-block:24px 48px}
main>.in{display:flex;flex-direction:column;gap:28px}
.head{display:flex;flex-direction:column;gap:8px}
.crumb{font-size:.82rem;color:var(--muted)}
.crumb a{color:var(--muted)}
.tag{align-self:flex-start;font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 10px}
h1{font-family:var(--display);font-weight:800;font-size:clamp(1.8rem,6vw,2.6rem);line-height:1.08;margin:4px 0 0;text-wrap:balance;letter-spacing:-.01em}
h2{font-family:var(--display);font-weight:700;font-size:clamp(1.3rem,4vw,1.6rem);line-height:1.2;margin:0;text-wrap:balance}
h3{font-size:1.02rem;margin:0}
.lead{color:var(--muted);margin:0;max-width:64ch;font-size:1.04rem}
.vals{display:flex;flex-wrap:wrap;gap:6px 20px;font-size:.88rem;color:var(--muted)}
.vals strong{color:var(--ink);font-variant-numeric:tabular-nums}

/* inicio */
.hero h1{font-size:clamp(2.1rem,8vw,3.4rem)}
.hl{background:linear-gradient(transparent 60%,var(--mark) 60%);padding:0 2px}
.tools{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.tool{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px}
.tool:hover{border-color:var(--accent)}
.tool .t{font-family:var(--display);font-weight:700;font-size:1.12rem}
.tool .d{color:var(--muted);font-size:.92rem}
.tool .go{margin-top:auto;padding-top:6px;color:var(--accent);font-weight:700;font-size:.9rem}
.why{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.why div{display:flex;flex-direction:column;gap:4px}
.why p{margin:0;color:var(--muted);font-size:.94rem}

/* calculadora */
.grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:860px){.grid{grid-template-columns:1fr 1fr;align-items:start}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:16px;min-width:0}
.panel>h2{font-size:1.15rem}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:360px){.row2{grid-template-columns:1fr}}
label,.lbl{font-weight:700;font-size:.92rem}
.hint{color:var(--muted);font-size:.82rem;font-weight:400}
input,select{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%;min-width:0;min-height:44px}
a:focus-visible,input:focus-visible,select:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.money{position:relative}
.money span{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted)}
.money input{padding-left:26px;font-variant-numeric:tabular-nums}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips input{position:absolute;opacity:0;width:1px;height:1px}
.chips label{font-weight:400;font-size:.9rem;border:1px solid var(--line);border-radius:999px;padding:8px 14px;cursor:pointer;background:var(--bg)}
.chips input:checked+label{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:700}
.chips input:focus-visible+label{outline:3px solid var(--accent);outline-offset:2px}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;cursor:pointer}
.check input{width:20px;height:20px;min-height:0;margin-top:2px;flex:none;accent-color:var(--accent)}
.note{background:var(--warn-bg);color:var(--warn);border-radius:10px;padding:10px 12px;font-size:.88rem;margin:0}
.hx{display:grid;grid-template-columns:1fr 96px;gap:10px 12px;align-items:center}
.hx label{font-weight:400;font-size:.94rem}
.hx label small{display:block;color:var(--muted);font-size:.78rem}
.hx input{text-align:right;font-variant-numeric:tabular-nums}

/* recibo */
.receipt{gap:0}
.total{display:flex;flex-direction:column;gap:2px;padding-bottom:16px;border-bottom:2px dashed var(--line)}
.total .k{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.total .v{font-family:var(--display);font-weight:800;font-size:clamp(2rem,9vw,2.8rem);font-variant-numeric:tabular-nums;line-height:1.1}
.total .v mark{background:linear-gradient(transparent 62%,var(--mark) 62%);color:inherit;padding:0 2px}
.err{color:var(--warn);font-weight:700;margin-top:6px}
.lines{list-style:none;margin:0;padding:0}
.lines li{display:grid;grid-template-columns:1fr auto;gap:2px 12px;padding:12px 0;border-bottom:1px solid var(--line)}
.lines li:last-child{border-bottom:0}
.lines .n{font-weight:700}
.lines .a{font-variant-numeric:tabular-nums;font-weight:700;text-align:right;white-space:nowrap}
.lines .f{grid-column:1/-1;color:var(--muted);font-size:.82rem}
.lines li.off{opacity:.55}
.lines li.neg .a{color:var(--warn)}
.facts{display:flex;flex-wrap:wrap;gap:6px 16px;color:var(--muted);font-size:.85rem;padding-top:14px}
.facts strong{color:var(--ink);font-variant-numeric:tabular-nums}

/* artículos */
.prose{display:flex;flex-direction:column;gap:14px;max-width:68ch}
.prose p,.prose ul,.prose ol{margin:0}
.prose li+li{margin-top:6px}
.prose .formula{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-variant-numeric:tabular-nums}
.tbl{overflow-x:auto;max-width:100%}
.tbl table{border-collapse:collapse;min-width:420px;width:100%;font-size:.92rem;font-variant-numeric:tabular-nums}
.tbl th,.tbl td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left}
.tbl th{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.tbl td.r,.tbl th.r{text-align:right}
.faq{display:flex;flex-direction:column;gap:8px;max-width:68ch}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 16px}
.faq summary{cursor:pointer;font-weight:700}
.faq details p{margin:10px 0 0;color:var(--ink)}
.more{display:flex;flex-wrap:wrap;gap:8px}
.more a{text-decoration:none;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:7px 14px;font-size:.9rem}
.more a:hover{border-color:var(--accent)}
.updated{font-size:.82rem;color:var(--muted);margin:0}
.copybox{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.copybox code{font-family:inherit;font-weight:700;font-size:1.1rem;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 14px;user-select:all;word-break:break-all}
.btn{font:inherit;font-weight:700;border:0;border-radius:10px;padding:10px 16px;background:var(--accent);color:var(--accent-ink);cursor:pointer;min-height:44px}

/* pie */
.foot{border-top:1px solid var(--line);background:var(--surface);padding-block:24px 36px;color:var(--muted);font-size:.84rem}
.foot .in{display:flex;flex-direction:column;gap:12px}
.foot p{margin:0;max-width:84ch}
.foot nav{display:flex;flex-wrap:wrap;gap:6px 18px}
.foot nav a{color:var(--ink);text-decoration:none}
.foot nav a:hover{text-decoration:underline}