/* Estudio Bergalli — contable/jurídico. Institucional con carácter, NO SaaS genérico.
   Tokens congelados: tokens-demos.md #1049 · Demo 1. Andamiaje técnico (nav/reveal/reduced-motion)
   tomado de apps/sites/demos/lumen/{styles.css,site.js} — paleta, tipografía y layout 100% propios. */
:root{
  --tinta:#12202E;
  --tinta-70:#3A4B5C;
  --grafito:#5E6C7A;
  --papel:#F7F5F1;
  --blanco:#FFFFFF;
  --cobre:#9A6B3F;
  --cobre-dark:#7F5730;
  --cobre-claro:#C9AE8B;
  --papel-70:#BFC8CF;
  --papel-80:#D8DEE2;
  --linea:#E2DED6;
  --f-display:"Fraunces",Georgia,serif;
  --f-body:"Manrope",system-ui,sans-serif;
  --ease-out:cubic-bezier(0.23,1,0.32,1);
  --ease-in-out:cubic-bezier(0.77,0,0.175,1);
  --motion-fast:160ms; --motion-base:250ms; --motion-reveal:600ms;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--papel);color:var(--tinta);font-family:var(--f-body);font-size:16.5px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
::selection{background:var(--tinta);color:var(--papel)}
:focus-visible{outline:2px solid var(--cobre);outline-offset:3px;border-radius:2px}
svg{flex-shrink:0}

/* ── Nav ── */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px clamp(20px,5vw,72px);background:rgba(247,245,241,.92);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:border-color var(--motion-base) ease,padding var(--motion-base) var(--ease-out)}
.nav.scrolled{border-bottom-color:var(--linea);padding-top:16px;padding-bottom:16px}
.nav__brand{font-family:var(--f-display);font-weight:600;font-size:19px;letter-spacing:.01em}
.nav__brand span{color:var(--cobre)}
.nav__links{display:flex;gap:36px;font-size:13.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--tinta-70)}
.nav__links a{position:relative;padding-bottom:4px;transition:color var(--motion-fast) ease}
.nav__links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1.5px;background:var(--cobre);transition:right var(--motion-base) var(--ease-out)}
.nav__links a:hover,.nav__links a[aria-current]{color:var(--tinta)}
.nav__links a:hover::after,.nav__links a[aria-current]::after{right:0}
.nav__cta{background:var(--cobre);color:var(--papel)!important;padding:12px 24px;border-radius:2px;font-size:13.5px;font-weight:700;letter-spacing:.03em;transition:background var(--motion-fast) ease,transform var(--motion-fast) var(--ease-out)}
.nav__cta:hover{background:var(--cobre-dark)}
.nav__cta:active{transform:scale(.97)}
@media(max-width:860px){.nav__links{display:none}}

/* ── Nav mobile (menú hamburguesa) ── */
.nav__burger{display:none;position:relative;width:34px;height:34px;border:0;background:none;padding:0;cursor:pointer;z-index:51}
.nav__burger span{position:absolute;left:5px;right:5px;height:2px;border-radius:1px;background:var(--tinta);transition:transform .35s var(--ease-out),opacity .2s ease,top .35s var(--ease-out)}
.nav__burger span:nth-child(1){top:12px}
.nav__burger span:nth-child(2){top:17px}
.nav__burger span:nth-child(3){top:22px}
.nav__burger[aria-expanded="true"] span:nth-child(1){top:17px;transform:rotate(45deg)}
.nav__burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav__burger[aria-expanded="true"] span:nth-child(3){top:17px;transform:rotate(-45deg)}
.nav-mobile{position:fixed;inset:0;z-index:49;display:none;align-items:center;justify-content:center;background:var(--tinta);opacity:0;pointer-events:none;transition:opacity .35s var(--ease-out)}
.nav-mobile.open{opacity:1;pointer-events:auto}
.nav-mobile__links{display:flex;flex-direction:column;align-items:center;gap:28px}
.nav-mobile__links a{font-family:var(--f-display);font-size:clamp(24px,6.5vw,30px);font-weight:600;color:var(--papel);opacity:0;transform:translateY(16px);transition:opacity .4s var(--ease-out),transform .4s var(--ease-out)}
.nav-mobile__links a[aria-current]{color:var(--cobre)}
.nav-mobile.open .nav-mobile__links a:nth-child(1){transition-delay:.08s}
.nav-mobile.open .nav-mobile__links a:nth-child(2){transition-delay:.15s}
.nav-mobile.open .nav-mobile__links a:nth-child(3){transition-delay:.22s}
.nav-mobile.open .nav-mobile__links a:nth-child(4){transition-delay:.29s}
.nav-mobile.open .nav-mobile__links a{opacity:1;transform:translateY(0)}
.nav-mobile__cta{margin-top:10px;background:var(--cobre);color:var(--papel)!important;padding:14px 34px;border-radius:2px;font-size:15px!important;font-weight:700}
@media(max-width:860px){
  .nav__cta{display:none}
  .nav__burger{display:block}
  .nav-mobile{display:flex}
}
@media(prefers-reduced-motion:reduce){
  .nav__burger span,.nav-mobile,.nav-mobile__links a{transition:none!important}
  .nav-mobile.open .nav-mobile__links a{opacity:1;transform:none}
}

/* ── Layout base ── */
section{padding:clamp(72px,10vw,120px) clamp(20px,5vw,72px)}
.wrap{max-width:1180px;margin:0 auto}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.24em;text-transform:uppercase;font-weight:700;color:var(--cobre);margin-bottom:18px}
.kicker::before{content:"";width:22px;height:1.5px;background:var(--cobre)}
.titulo{font-family:var(--f-display);font-weight:600;font-size:clamp(28px,3.6vw,46px);line-height:1.14;letter-spacing:-.01em}
.titulo em{font-style:normal;color:var(--cobre)}
.lead{color:var(--grafito);margin-top:16px;max-width:56ch;font-size:17px}
.page-head{padding:clamp(140px,17vh,180px) clamp(20px,5vw,72px) clamp(40px,5vw,60px);max-width:1180px;margin:0 auto;border-bottom:1px solid var(--linea)}
.page-head .titulo{font-size:clamp(32px,4.6vw,54px);max-width:20ch}
.page-head .lead{max-width:60ch}

/* ── Botones y links ── */
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--cobre);color:var(--papel);font-weight:700;font-size:15px;letter-spacing:.01em;padding:15px 30px;border-radius:2px;transition:background var(--motion-fast) var(--ease-out),transform var(--motion-fast) var(--ease-out)}
.btn:hover{background:var(--cobre-dark)}
.btn:active{transform:scale(.97)}
.btn--ghost{background:transparent;color:var(--papel);border:1.5px solid rgba(247,245,241,.4)}
.btn--ghost:hover{background:rgba(247,245,241,.08)}
.link{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14.5px;color:var(--tinta);border-bottom:1.5px solid var(--cobre);padding-bottom:3px;transition:opacity var(--motion-fast) ease,transform var(--motion-fast) var(--ease-out)}
.link:hover{opacity:.7;transform:translateX(2px)}
.link svg{width:14px;height:14px}

/* ── Hero split asimétrico ── */
.hero{position:relative;min-height:100dvh;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:clamp(40px,5vw,72px);padding:calc(clamp(72px,10vw,120px) + 64px) clamp(20px,5vw,72px) clamp(60px,8vw,96px);max-width:1320px;margin:0 auto}
.hero__eyebrow{font-size:13px;letter-spacing:.24em;text-transform:uppercase;color:var(--cobre);font-weight:700;margin-bottom:24px}
.hero h1{font-family:var(--f-display);font-weight:600;font-size:clamp(36px,5vw,64px);line-height:1.08;letter-spacing:-.015em;max-width:15ch}
.hero__sub{color:var(--grafito);font-size:18px;max-width:44ch;margin:24px 0 32px}
.hero__acciones{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.hero__confianza{display:flex;align-items:center;gap:10px;margin-top:32px;padding-top:24px;border-top:1px solid var(--linea);color:var(--grafito);font-size:14px;max-width:44ch}
.hero__confianza svg{width:18px;height:18px;color:var(--cobre)}

/* ── Ficha (asset editorial derecho del hero, sin foto) ── */
.ficha{position:relative;background:var(--blanco);border:1px solid var(--linea);border-radius:3px;padding:clamp(28px,3vw,40px);max-width:420px;margin-left:auto}
.ficha::before{content:"";position:absolute;inset:14px -14px -14px 14px;z-index:-1;border:1.5px solid var(--tinta-70);border-radius:3px;opacity:.4}
.ficha__top{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid var(--linea)}
.ficha__mes{font-family:var(--f-display);font-weight:600;font-size:19px}
.ficha__badge{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--cobre);background:rgba(154,107,63,.1);padding:5px 10px;border-radius:2px}
.ficha__item{display:flex;align-items:flex-start;gap:12px;padding:13px 0;border-bottom:1px solid var(--linea)}
.ficha__item:last-child{border-bottom:0;padding-bottom:0}
.ficha__check{width:19px;height:19px;flex-shrink:0;border-radius:50%;background:var(--tinta);color:var(--papel);display:grid;place-items:center;margin-top:1px}
.ficha__check svg{width:11px;height:11px}
.ficha__texto b{display:block;font-size:14.5px;font-weight:600}
.ficha__texto span{display:block;font-size:12.5px;color:var(--grafito);margin-top:2px}
@media(max-width:960px){
  .hero{grid-template-columns:1fr;text-align:left}
  .ficha{margin:0}
  .hero h1{max-width:100%}
}

/* ── Frase editorial (villano / stakes) ── */
.frase{background:var(--tinta);color:var(--papel);text-align:left;border-top:1px solid var(--tinta);border-bottom:1px solid var(--tinta)}
.frase .wrap{display:grid;grid-template-columns:.5fr 1fr;gap:clamp(24px,4vw,64px);align-items:start}
.frase .kicker{color:var(--cobre-claro)}
.frase p{font-family:var(--f-display);font-weight:400;font-size:clamp(24px,3vw,34px);line-height:1.32;letter-spacing:-.01em;max-width:26ch}
.frase p em{font-style:normal;color:var(--cobre)}
@media(max-width:760px){.frase .wrap{grid-template-columns:1fr}}

/* ── Problema: lista con divisores ── */
.problema__lista{margin-top:44px;border-top:1px solid var(--linea)}
.problema__item{display:flex;align-items:flex-start;gap:20px;padding:24px 0;border-bottom:1px solid var(--linea)}
.problema__marca{font-family:var(--f-display);font-size:26px;color:var(--cobre);line-height:1;flex-shrink:0}
.problema__item p{font-size:16.5px;color:var(--tinta-70);max-width:60ch;padding-top:2px}

/* ── Servicios: fila numerada, asimétrica ── */
.servicios__lista{margin-top:52px;border-top:1px solid var(--linea)}
.servicio-row{display:grid;grid-template-columns:120px 1fr;gap:clamp(20px,4vw,48px);padding:clamp(28px,3.5vw,40px) 0;border-bottom:1px solid var(--linea);align-items:start}
.servicio-row:nth-child(even){grid-template-columns:120px 1fr}
.servicio-row:nth-child(even) .servicio-row__body{margin-left:clamp(0px,6vw,64px)}
.servicio-row__n{font-family:var(--f-display);font-weight:300;font-size:clamp(40px,5vw,64px);color:var(--linea);line-height:1}
.servicio-row__body h3{font-family:var(--f-display);font-weight:600;font-size:clamp(20px,2.2vw,26px);margin-bottom:10px}
.servicio-row__body p{color:var(--grafito);max-width:58ch}
@media(max-width:700px){
  .servicio-row,.servicio-row:nth-child(even){grid-template-columns:64px 1fr}
  .servicio-row:nth-child(even) .servicio-row__body{margin-left:0}
  .servicio-row__n{font-size:32px}
}

/* ── Plan (3 pasos) ── */
.plan{background:var(--tinta);color:var(--papel)}
.plan .kicker{color:var(--cobre-claro)}
.plan .titulo{color:var(--papel)}
.plan .titulo em{color:var(--cobre)}
.plan__pasos{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,48px);margin-top:52px}
.plan__paso{border-top:1px solid rgba(247,245,241,.2);padding-top:22px}
.plan__n{font-family:var(--f-display);font-weight:300;font-size:48px;color:var(--cobre);line-height:1;display:block;margin-bottom:14px}
.plan__paso b{display:block;font-family:var(--f-display);font-weight:600;font-size:18.5px;margin-bottom:8px}
.plan__paso p{color:var(--papel-70);font-size:15px;max-width:34ch}
.plan__compromiso{margin-top:56px;padding-top:32px;border-top:1px solid rgba(247,245,241,.2);display:flex;flex-wrap:wrap;gap:14px 40px;font-size:14px;color:var(--papel-80)}
.plan__compromiso span{display:flex;align-items:center;gap:9px}
.plan__compromiso svg{width:16px;height:16px;color:var(--cobre)}
@media(max-width:860px){.plan__pasos{grid-template-columns:1fr}}

/* ── Estudio / prueba social (composición tipográfica, sin foto) ── */
.estudio-copy{max-width:760px;margin-top:48px}
.estudio-copy__lead{font-family:var(--f-display);font-weight:400;font-size:clamp(22px,2.6vw,29px);line-height:1.44;letter-spacing:-.005em;color:var(--tinta)}
.estudio-copy .regla{border:0;border-top:1px solid var(--linea);margin:32px 0;width:64px;margin-left:0}
.estudio-copy__firma{font-size:16px;color:var(--grafito)}
.estudio-copy__firma span{color:var(--tinta);font-weight:600}

/* ── FAQ ── */
.faq__lista{max-width:760px;margin:44px auto 0;border-top:1px solid var(--linea)}
.faq__lista details{border-bottom:1px solid var(--linea)}
.faq__lista summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:var(--f-display);font-weight:600;font-size:17px;padding:22px 0}
.faq__lista summary::-webkit-details-marker{display:none}
.faq__lista summary::after{content:"+";font-size:22px;color:var(--cobre);font-weight:400;transition:transform var(--motion-base) var(--ease-out)}
.faq__lista details[open] summary::after{transform:rotate(45deg)}
.faq__lista details p{color:var(--grafito);padding:0 0 22px;max-width:62ch;font-size:15.5px}

/* ── CTA final + footer ── */
.final{text-align:left;border-top:1px solid var(--linea)}
.final .wrap{max-width:720px}
.final p{color:var(--grafito);margin:16px 0 32px;max-width:48ch}
.footer{padding:36px clamp(20px,5vw,72px);display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap;font-size:13.5px;color:var(--grafito);border-top:1px solid var(--linea)}
.footer__brand{font-family:var(--f-display);font-weight:600;font-size:16px;color:var(--tinta);margin-bottom:6px}
.footer__brand span{color:var(--cobre)}
.footer__legal{max-width:340px;font-size:12.5px;color:var(--grafito);opacity:.85}
.footer a:hover{color:var(--cobre)}

/* ── WhatsApp FAB ── */
.fab{position:fixed;right:20px;bottom:20px;z-index:40;display:flex;align-items:center;gap:10px;background:var(--tinta);color:var(--papel);padding:14px 20px;border-radius:2px;font-size:14px;font-weight:700;box-shadow:0 10px 30px -12px rgba(18,32,46,.45);transition:background var(--motion-fast) ease,transform var(--motion-fast) var(--ease-out)}
.fab:hover{background:var(--cobre-dark)}
.fab:active{transform:scale(.97)}
.fab svg{width:20px;height:20px}
.fab__texto{display:none}
@media(min-width:640px){.fab__texto{display:inline}}

/* ── Página estudio: equipo + qué no hacemos ── */
.como-trabajamos{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,40px);margin-top:44px;border-top:1px solid var(--linea);padding-top:40px}
.como-trabajamos__item svg{width:26px;height:26px;color:var(--cobre);margin-bottom:16px}
.como-trabajamos__item h3{font-family:var(--f-display);font-weight:600;font-size:19px;margin-bottom:8px}
.como-trabajamos__item p{color:var(--grafito);font-size:15px}
@media(max-width:860px){.como-trabajamos{grid-template-columns:1fr}}

.equipo{display:grid;grid-template-columns:repeat(4,1fr);align-items:start;gap:clamp(20px,3vw,32px);margin-top:44px}
.equipo__persona{margin:0}
.equipo__foto{aspect-ratio:4/5;border-radius:3px;overflow:hidden;background:var(--linea)}
.equipo__foto img{width:100%;height:100%;object-fit:cover;object-position:center top;filter:grayscale(1);transition:filter 450ms var(--ease-out)}
@media(hover:hover) and (pointer:fine){.equipo__persona:hover .equipo__foto img{filter:grayscale(0)}}
.equipo__foto--iniciales{display:grid;place-items:center;font-family:var(--f-display);font-weight:600;font-size:clamp(32px,4vw,44px);color:var(--tinta-70);background:var(--linea)}
.equipo__persona figcaption{padding-top:14px}
.equipo__persona b{display:block;font-family:var(--f-display);font-weight:600;font-size:17px;transition:color var(--motion-base) ease}
.equipo__persona span{display:block;color:var(--cobre);font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;margin-top:4px}
@media(hover:hover) and (pointer:fine){.equipo__persona:hover b{color:var(--cobre)}}
@media(max-width:860px){.equipo{grid-template-columns:1fr 1fr}}
@media(max-width:500px){.equipo{grid-template-columns:1fr;max-width:280px;margin-left:auto;margin-right:auto}}

.honestidad{background:var(--papel);border:1px solid var(--linea);border-radius:3px;padding:clamp(28px,3.5vw,40px);margin-top:44px}
.honestidad h3{font-family:var(--f-display);font-weight:600;font-size:22px;margin-bottom:18px}
.honestidad ul{display:grid;gap:14px}
.honestidad li{display:flex;gap:12px;align-items:flex-start;color:var(--tinta-70);font-size:15.5px}
.honestidad li svg{width:16px;height:16px;color:var(--cobre);flex-shrink:0;margin-top:4px}

/* ── Página contacto: formulario visual + datos ── */
.contacto__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px);margin-top:44px}
.form-visual{display:grid;gap:20px}
.form-visual__campo label{display:block;font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--tinta-70);margin-bottom:8px}
.form-visual__campo input,.form-visual__campo textarea{width:100%;border:1px solid var(--linea);background:var(--blanco);border-radius:2px;padding:13px 14px;font-family:var(--f-body);font-size:15px;color:var(--tinta);transition:border-color var(--motion-fast) ease}
.form-visual__campo input:focus,.form-visual__campo textarea:focus{border-color:var(--cobre);outline:none}
.form-visual__campo textarea{resize:vertical;min-height:100px}
.form-visual__nota{font-size:12.5px;color:var(--grafito)}

.datos-contacto{border-left:1px solid var(--linea);padding-left:clamp(28px,4vw,48px)}
.datos-contacto__bloque{padding:20px 0;border-bottom:1px solid var(--linea)}
.datos-contacto__bloque:first-child{padding-top:0}
.datos-contacto__bloque:last-child{border-bottom:0}
.datos-contacto__bloque h4{font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--cobre);margin-bottom:8px}
.datos-contacto__bloque p{color:var(--tinta-70);font-size:15.5px;line-height:1.6}
@media(max-width:860px){.contacto__grid{grid-template-columns:1fr}.datos-contacto{border-left:0;padding-left:0;border-top:1px solid var(--linea);padding-top:32px}}

/* ── Motion / reveal ── */
@media(hover:hover) and (pointer:fine){
  .servicio-row:hover .servicio-row__n{color:var(--cobre)}
}
.servicio-row__n{transition:color var(--motion-base) ease}

.reveal{opacity:0;transform:translateY(24px);transition:opacity var(--motion-reveal) var(--ease-out),transform var(--motion-reveal) var(--ease-out);transition-delay:var(--d,0ms)}
.reveal.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .2s ease}
  html{scroll-behavior:auto}
  .nav{transition:none}
}