/* Estudio Causero - estilos del sitio
   Diseño: fondo crema, títulos extra-bold en minúsculas, un solo acento rojo.
   Mobile first: los estilos base son para celular; los @media amplían a pantallas grandes. */

:root{
  --bg:#E9E0D5;
  --light:#F5F0E8;
  --white:#FFFFFF;
  --ink:#161412;
  --red:#D93A1E;
  --red-text:#BE3014;
  --grey:#5C5751;
  --line:#CBBFB0;
  --green:#14803F;
  --maxw:1120px;
  --pad:clamp(20px,5vw,48px);
  --f-title:"Archivo Black","Arial Black","Helvetica Neue",Arial,sans-serif;
  --f-body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --bar-h:60px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:84px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:400 16.5px/1.6 var(--f-body);
  padding-bottom:calc(var(--bar-h) + env(safe-area-inset-bottom,0px));
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0}
:focus-visible{outline:3px solid var(--red);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:10px 16px;z-index:100}
.skip:focus{left:8px}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}

/* ---------- Tipografía ---------- */
.title{
  font-family:var(--f-title);font-weight:900;font-synthesis:none;
  letter-spacing:-.025em;line-height:.98;text-transform:none;
}
.t1{font-size:clamp(38px,9.6vw,66px);overflow-wrap:break-word}
.t2{font-size:clamp(34px,6.4vw,60px)}
.t3{font-size:clamp(26px,4.4vw,38px)}
.dot{color:var(--red)}
h3,.h3{font-size:1.28rem;line-height:1.25;font-weight:700;letter-spacing:-.01em}
.lede{font-size:clamp(17px,2.2vw,19.5px);line-height:1.55;color:var(--grey);max-width:34em}
.muted{color:var(--grey)}
.small{font-size:.9rem}
.tag{display:block;font-size:.84rem;font-weight:700;color:var(--red-text);margin-bottom:.35rem}
.sub{font-weight:700;color:var(--red-text);font-size:1.1rem;margin:20px 0 6px}
.kicker{display:flex;align-items:center;gap:12px;font-size:.88rem;font-weight:600;color:var(--grey);margin-bottom:22px}
.kicker::before{content:"";width:28px;height:3px;background:var(--red)}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;padding:0 26px;border:2px solid var(--ink);
  font:700 15px/1 var(--f-body);text-decoration:none;cursor:pointer;
  background:var(--ink);color:#fff;transition:background .15s,color .15s,border-color .15s;
}
.btn:hover{background:#000}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--red{background:var(--red);border-color:var(--red);color:#fff}
.btn--red:hover{background:#B9300F;border-color:#B9300F}
.btn--wa{background:var(--green);border-color:var(--green);color:#fff}
.btn--wa:hover{background:#0F6A33;border-color:#0F6A33}
.btn--light{background:transparent;border-color:#6B655E;color:#fff}
.btn--light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn--sm{min-height:42px;padding:0 18px;font-size:14px}

/* ---------- Encabezado ---------- */
.hdr{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:2px solid var(--ink)}
.hdr__in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;white-space:nowrap;flex:none}
.brand img{width:36px;height:auto}
.brand__t{display:flex;flex-direction:column;line-height:1}
.brand__n{font:700 15.5px/1 "Times New Roman",Georgia,serif;letter-spacing:.07em}
.brand__s{font:500 8.5px/1 var(--f-body);letter-spacing:.22em;margin-top:5px}
.nav{display:none}
.nav a{white-space:nowrap;text-decoration:none;font-size:.94rem;color:var(--grey);padding:8px 0;border-bottom:3px solid transparent}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--ink);font-weight:700;border-bottom-color:var(--red)}
.hdr__cta{display:none;white-space:nowrap}
.burger{
  width:46px;height:46px;border:2px solid var(--ink);background:transparent;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:0;
}
.burger span{display:block;width:22px;height:2.5px;background:var(--ink)}
.hdr.is-open .nav{
  display:flex;flex-direction:column;position:absolute;left:0;right:0;top:100%;
  background:var(--bg);border-bottom:2px solid var(--ink);padding:8px var(--pad) 20px;
}
.hdr.is-open .nav a{font-size:1.15rem;color:var(--ink);padding:14px 0;border-bottom:1px solid var(--line)}
.hdr.is-open .nav a[aria-current="page"]{border-bottom-color:var(--red)}

/* ---------- Secciones ---------- */
.band{padding:clamp(52px,8vw,96px) 0}
.band--light{background:var(--light)}
.band--white{background:var(--white)}
.band--ink{background:var(--ink);color:#fff}
.band--ink .muted,.band--ink .lede{color:#CFC8BF}
.sec-head{margin-bottom:clamp(28px,5vw,48px)}
.sec-head .lede{margin-top:16px}

/* ---------- Hero ---------- */
.hero{padding:clamp(30px,5vw,64px) 0 clamp(36px,6vw,72px);background:var(--bg)}
.hero__grid{display:grid;gap:28px;align-items:center}
.hero__grid>*{min-width:0}
.hero__txt .lede{margin:22px 0 28px}
.hero__img{width:min(100%,360px);margin:0 auto}
.hero__img img{width:100%}
.micro{font-size:.86rem;color:var(--grey);margin:14px 0 0}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px}
.stat{border-top:3px solid var(--ink);padding-top:12px}
.stat b{display:block;font:900 clamp(19px,5vw,27px)/1.05 var(--f-title);font-synthesis:none;color:var(--red-text);letter-spacing:-.02em}
.stat span{display:block;font-size:.8rem;line-height:1.35;color:var(--grey);margin-top:8px}
.page-hero{padding:clamp(34px,6vw,76px) 0 clamp(40px,6vw,76px);background:var(--bg)}
.page-hero .lede{margin:20px 0 26px}

/* ---------- Clientes ---------- */
.clients{background:var(--white);padding:30px 0}
.clients p{font-size:.88rem;font-weight:600;color:var(--grey);margin-bottom:12px}
.clients ul{display:flex;flex-wrap:wrap;gap:8px 24px}
.clients li{font-weight:700;color:#8A837B;font-size:1rem}

/* ---------- Grillas ---------- */
.grid{display:grid;gap:30px}
.rule{border-top:3px solid var(--ink);padding-top:18px}
.rule h3{margin-bottom:.5rem}
.rule p{color:var(--grey);font-size:.98rem;margin:0}

/* Tarjetas de servicio */
.svc__img{aspect-ratio:16/10;background:var(--bg);overflow:hidden;margin-bottom:20px}
.svc__img img{width:100%;height:100%;object-fit:cover}
.svc h3{font-family:var(--f-title);font-weight:900;font-synthesis:none;font-size:1.6rem;letter-spacing:-.02em;line-height:1.05;margin-bottom:10px}
.ticks{margin:14px 0 18px}
.ticks li{position:relative;padding:5px 0 5px 18px;font-size:.96rem}
.ticks li::before{content:"";position:absolute;left:0;top:.85em;width:7px;height:7px;background:var(--red)}
.more{font-weight:700;text-decoration:none;border-bottom:3px solid var(--red);padding-bottom:2px}
.more:hover{background:var(--red);color:#fff}

/* Proceso (secuencia real: lleva números) */
.steps{display:grid;gap:26px 28px;counter-reset:s}
.step{border-top:3px solid var(--ink);padding-top:14px}
.step b{display:block;font:900 2.4rem/1 var(--f-title);font-synthesis:none;color:var(--red);letter-spacing:-.03em;margin-bottom:14px}
.step h3{font-size:1.02rem;margin-bottom:6px}
.step p{font-size:.93rem;color:var(--grey);margin:0}
.tools{margin-top:40px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:6px 24px;font-size:.95rem}
.tools strong{margin-right:6px}

/* Proyectos */
.works{display:grid;gap:36px 28px}
.work{display:block;text-decoration:none}
.work__img{aspect-ratio:3/2;overflow:hidden;background:var(--bg);margin-bottom:16px}
.work__img img{width:100%;height:100%;object-fit:cover}
.work h3{font-size:1.35rem;margin-bottom:2px}
.work:hover h3{text-decoration:underline;text-decoration-thickness:3px;text-decoration-color:var(--red);text-underline-offset:5px}
.work--cta{background:var(--ink);color:#fff;padding:32px;display:flex;flex-direction:column;justify-content:center;gap:22px;min-height:260px}
.work--cta .title{font-size:clamp(30px,5vw,42px)}
.hide{display:none!important}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  min-height:42px;padding:0 20px;border:2px solid var(--ink);background:transparent;
  font:700 14px/1 var(--f-body);cursor:pointer;color:var(--ink)
}
.chip[aria-pressed="true"]{background:var(--ink);color:#fff}

/* Fichas de datos */
.meta{border-top:1px solid var(--line)}
.meta div{padding:14px 0;border-bottom:1px solid var(--line)}
.meta dt{font-size:.82rem;font-weight:600;color:var(--grey);margin-bottom:2px}
.meta dd{margin:0;font-size:1.02rem}
.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 22px;margin:22px 0 30px}
.facts div{border-top:3px solid var(--ink);padding-top:10px}
.facts dt{font-size:.8rem;font-weight:600;color:var(--grey)}
.facts dd{margin:2px 0 0;font-weight:700;font-size:1.02rem}

/* Casos */
.case{padding-top:clamp(34px,5vw,56px);border-top:1px solid var(--line);margin-top:clamp(34px,5vw,56px)}
.case:first-of-type{border-top:0;margin-top:0;padding-top:0}
.case__head{margin-bottom:22px}
.case__head h3{font-family:var(--f-title);font-weight:900;font-synthesis:none;font-size:clamp(26px,4.6vw,36px);letter-spacing:-.025em;line-height:1.02}
.pics{display:grid;gap:18px}
.pic{margin:0}
.pic img{width:100%;height:100%;object-fit:cover}
.pic figcaption{font-size:.84rem;color:var(--grey);margin-top:8px}
.pic--box{background:var(--bg)}
.pic--fit img{object-fit:contain}
.split{display:grid;gap:28px;align-items:start}

/* Galería */
.tiles{display:grid;gap:30px 24px}
.tile img{width:100%;aspect-ratio:3/2;object-fit:cover;background:var(--bg)}
.tile h3{font-size:1.02rem;margin-top:12px}
.tile p{font-size:.88rem;color:var(--grey);margin:2px 0 0}
.figs{display:grid;gap:26px}
.fig{border-top:3px solid var(--ink);padding-top:12px}
.fig__box{background:var(--white);border:1px solid var(--line);padding:6px;margin-top:12px}
.fig__box img{width:100%;aspect-ratio:3/2;object-fit:contain}
.fig b{font-size:1rem}
.fig span{display:block;font-size:.84rem;color:var(--grey)}

/* Llamado a la acción final */
.cta{padding:clamp(52px,8vw,92px) 0}
.cta__grid{display:grid;gap:40px;align-items:start}
.cta .title{margin-bottom:18px}
.cta .lede{margin-bottom:28px}
.how{border-top:1px solid #4A453F}
.how li{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid #4A453F;align-items:baseline}
.how b{font:900 1.7rem/1 var(--f-title);font-synthesis:none;color:var(--red);min-width:2.1ch}
.how span{color:#E6E0D8}
.how-title{font-weight:700;margin-bottom:12px;color:#fff}

/* Formulario */
.form{display:grid;gap:18px}
.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;min-height:50px;padding:12px 14px;border:2px solid var(--ink);border-radius:0;
  background:var(--white);font:400 16px/1.4 var(--f-body);color:var(--ink);
}
.field textarea{min-height:140px;resize:vertical}
.field .hint{font-size:.82rem;color:var(--grey);margin-top:5px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form__msg{padding:14px 16px;border-left:5px solid var(--ink);background:var(--white);font-size:.96rem}
.form__msg[hidden]{display:none}
.form__msg.is-ok{border-left-color:var(--green)}
.form__msg.is-err{border-left-color:var(--red)}
.panel{background:var(--ink);color:#fff;padding:clamp(24px,4vw,36px)}
.panel h3{font-family:var(--f-title);font-weight:900;font-synthesis:none;letter-spacing:-.02em;font-size:1.3rem}
.panel div{padding:20px 0;border-bottom:1px solid #4A453F}
.panel div:first-child{padding-top:0}
.panel div:last-child{border-bottom:0;padding-bottom:0}
.panel a{color:#E6E0D8;text-underline-offset:4px}
.panel p{margin:4px 0 0;color:#E6E0D8}
.quick{margin-top:26px;padding-top:20px;border-top:1px solid var(--line)}
.quick strong{display:block;margin-bottom:6px}

/* Pie */
.ftr{background:var(--ink);color:#E6E0D8;padding:clamp(40px,6vw,64px) 0 28px}
.ftr__grid{display:grid;gap:34px}
.ftr img{width:104px;height:auto}
.ftr h4{font-size:.9rem;font-weight:700;color:#fff;margin-bottom:12px}
.ftr li{margin-bottom:8px;font-size:.95rem}
.ftr a{text-decoration:none}
.ftr a:hover{text-decoration:underline;text-underline-offset:4px}
.ftr p{color:#A8A29A;font-size:.93rem;max-width:26em}
.ftr__legal{margin-top:36px;padding-top:20px;border-top:1px solid #3F3A35;font-size:.82rem;color:#948D84}

/* Barra fija en celular y botón flotante en escritorio */
.mbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;
  padding-bottom:env(safe-area-inset-bottom,0px);background:var(--ink);
}
.mbar a{
  flex:1;height:var(--bar-h);display:flex;align-items:center;justify-content:center;gap:8px;
  color:#fff;font-weight:700;font-size:15px;text-decoration:none;
}
.mbar .wa{background:var(--green)}
.mbar .budget{background:var(--red)}
.wa-float{display:none}
.ico{width:20px;height:20px;fill:currentColor;flex:none}

/* 404 */
.nf{min-height:60vh;display:grid;align-content:center;gap:20px}

@media (max-width:639px){.btn-row .btn{width:100%}}

/* ---------- Tablet ---------- */
@media (min-width:640px){
  .grid--2,.grid--3,.works,.tiles,.pics--2{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .figs{grid-template-columns:repeat(3,1fr)}
  .facts{grid-template-columns:repeat(4,1fr)}
  .ftr__grid{grid-template-columns:1.3fr 1fr 1fr}
}

/* ---------- Escritorio ---------- */
@media (min-width:900px){
  body{padding-bottom:0;font-size:17px}
  .mbar{display:none}
  .burger{display:none}
  .hdr__in{height:76px}
  .brand img{width:40px}
  .brand__n{font-size:17px}
  .nav{display:flex;gap:22px;align-items:center}
  .grid--3{grid-template-columns:repeat(3,1fr)}
  .tiles--3{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .hero__grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px}
  .hero__img{width:min(100%,470px);margin:0 0 0 auto}
  .split{grid-template-columns:1fr 1fr;gap:48px}
  .split--wide{grid-template-columns:1.25fr 1fr}
  .split--rev .split__a{order:2}
  .pics--case{grid-template-columns:1fr 1fr}
  .pics--case .pic{aspect-ratio:1/1.05}
  .cta__grid{grid-template-columns:1.1fr .9fr;gap:64px}
  .contact-grid{grid-template-columns:1.1fr .9fr;gap:56px}
  .wa-float{
    display:inline-flex;position:fixed;right:24px;bottom:24px;z-index:70;
    background:var(--green);color:#fff;text-decoration:none;font-weight:700;
    padding:0 22px;min-height:50px;align-items:center;gap:8px;box-shadow:0 4px 14px rgba(0,0,0,.22);
  }
  .wa-float:hover{background:#0F6A33}
}
@media (min-width:900px){ .works--2{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1060px){ .hdr__cta{display:inline-flex} .nav{gap:26px} }

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
}

/* SEO content additions - preserve existing visual language */
.seo-intro{margin-bottom:32px;max-width:52em}
.seo-intro h3{font-family:var(--f-title);font-size:clamp(24px,4vw,34px);margin-bottom:10px}
.seo-note{margin:0 0 30px;max-width:48em}
.faq{border-top:3px solid var(--ink);max-width:880px}
.faq details{border-bottom:1px solid var(--line);padding:0}
.faq summary{cursor:pointer;font-weight:700;font-size:1.05rem;padding:20px 34px 20px 0;position:relative;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:17px;font:900 1.5rem/1 var(--f-title);color:var(--red)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--grey);max-width:48em;padding:0 34px 20px 0;margin:0}
@media (min-width:900px) and (max-width:1059px){.nav{gap:14px}.nav a{font-size:.86rem}}