/* IParVolt — estilos comunes: reset, tokens, cabecera, pie y páginas de texto */
:root{
  --bg:#F4F6FA; --panel:#FFFFFF; --fg:#0E2240; --muted:#4E5D6E; --line:#DAE1EA; --accent:#0068FF;
  --f-display:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-body:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;
  --navy:#0B3D91; --blue:#0068FF; --teal:#00C6A7; --grad:linear-gradient(90deg,#0068FF,#00C6A7);
  --f-mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--bg:#06142B;--panel:#0C2145;--fg:#E9EFF8;--muted:#9AAAC0;--line:#1C3966;--accent:#4D94FF;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#06142B;--panel:#0C2145;--fg:#E9EFF8;--muted:#9AAAC0;--line:#1C3966;--accent:#4D94FF;color-scheme:dark}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:15px;line-height:1.5}
img{max-width:100%}
[hidden]{display:none!important}
a{color:var(--accent)}
.site-h{display:block;border-bottom:1px solid var(--line);background:var(--panel)}
.site-h .in{width:100%}
.site-h .in{max-width:1240px;margin:0 auto;padding:12px max(16px,env(safe-area-inset-right,0px)) 12px max(16px,env(safe-area-inset-left,0px));display:flex;align-items:center;justify-content:space-between;gap:10px 24px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--fg);font-family:var(--f-display);font-weight:700;font-size:22px;letter-spacing:.01em}
.brand b{color:var(--accent);font-weight:700}
.brand svg{width:26px;height:26px}
.site-h nav{display:flex;gap:4px 18px;flex-wrap:wrap}
.site-h nav a{text-decoration:none;color:var(--muted);font-weight:600;font-size:14px;padding:4px 0;border-bottom:2px solid transparent}
.site-h nav a:hover,.site-h nav a[aria-current=page]{color:var(--fg);border-bottom-color:var(--accent)}
.site-f{border-top:1px solid var(--line);margin-top:40px}
.site-f .in{max-width:1240px;margin:0 auto;padding:20px max(16px,env(safe-area-inset-right,0px)) 28px max(16px,env(safe-area-inset-left,0px));display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;font-size:13px;color:var(--muted)}
.site-f a{color:var(--muted)}
.site-f .disc{max-width:70ch}
.prose{max-width:1240px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.prose .pcol{max-width:72ch}
.prose table{min-width:0}
.prose h2{font-family:var(--f-display);font-weight:700;font-size:24px;margin:36px 0 8px;text-wrap:balance}
.prose h3{font-family:var(--f-display);font-weight:600;font-size:18px;margin:24px 0 6px}
.prose p,.prose li{color:var(--fg)}
.prose code,.prose .f{font-family:var(--f-mono);font-size:13.5px;background:var(--panel);border:1px solid var(--line);border-radius:4px;padding:1px 5px}
.prose .eq{font-family:var(--f-mono);font-size:15px;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:4px;padding:10px 14px;margin:10px 0;overflow-x:auto;white-space:nowrap}
.prose table{border-collapse:collapse;font-variant-numeric:tabular-nums;margin:8px 0}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:6px 12px;text-align:left}
.prose td{font-family:var(--f-mono);font-size:13.5px}
.prose th{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.tw{overflow-x:auto}
.prose details{border-bottom:1px solid var(--line);padding:10px 0}
.prose summary{cursor:pointer;font-weight:600}
.signup{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px;margin:28px 0;display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between}
.signup p{margin:0;max-width:52ch}
.signup form{display:flex;gap:8px;flex-wrap:wrap}
.signup input{font:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--line);border-radius:4px;background:var(--bg);color:var(--fg);min-width:0;width:240px;max-width:100%}
.signup button{font:inherit;font-weight:600;font-size:14px;padding:8px 14px;border-radius:4px;border:1px solid var(--accent);background:var(--accent);color:var(--panel);cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---- Identidad IParVolt (kit de marca) ---- */
body{font-feature-settings:"tnum" 0}
.brand{gap:10px;font-family:var(--f-display);font-weight:800;font-size:22px;letter-spacing:-.02em;color:var(--navy)}
.brand .mark{width:30px;height:30px;flex:none}
.brand .wm{line-height:1}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .brand{color:#fff}}
:root[data-theme="dark"] .brand{color:#fff}
.site-h{position:relative}
.site-h::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--grad)}
.site-h nav a{font-weight:600}
.site-f{background:var(--navy);color:#C9D4E6;border-top:0}
.site-f .in{color:#C9D4E6}
.site-f a{color:#fff}
.site-f .fb{display:flex;align-items:center;gap:8px;font-weight:800;color:#fff;font-size:16px;letter-spacing:-.02em}
.site-f .fb .mark{width:22px;height:22px}
.prose h2,.prose h3{letter-spacing:-.01em}
.prose h2{font-weight:800}
.prose .eq{border-left-color:var(--teal)}
.signup{border-radius:10px;border-left:4px solid var(--teal)}
.signup button{border-radius:6px;border-color:var(--blue);background:var(--blue);color:#fff}
.signup input{border-radius:6px}
/* títulos de herramientas */
.tool-main h1{font-weight:800;letter-spacing:-.02em}
.tool-main h1 span{color:var(--accent)}
.tool-main .ph h2,.tool-main .ph h3,.tool-main h2.sec{font-weight:700;letter-spacing:-.005em}