/* ==========================================================================
   Cembio — sistema visual (v2: claro y fotográfico)
   Consultora jurídico-ambiental · Región de Valparaíso
   Desarrollado por MAHCA. Sin dependencias externas ni proceso de build.
   ========================================================================== */

@import url("../fuentes/fuentes.css");

:root{
  --tinta:#12241C;
  --tinta-2:#1B3529;
  --verde:#2C6A4C;
  --verde-vivo:#4E9B6B;
  --verde-suave:#E9EFEA;
  --hueso:#F7F5EF;
  --papel:#FFFFFF;
  --arena:#E3DCCB;
  --arena-2:#F0EADC;
  --texto:#1D2A24;
  --texto-2:#55635B;
  --acento:#A4522F;

  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;

  --ancho:1220px;
  --ancho-texto:66ch;
  --r:4px;
  --cab:76px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:var(--cab)}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

body{
  margin:0;background:var(--hueso);color:var(--texto);
  font-family:var(--sans);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--acento);outline-offset:3px;border-radius:2px}

h1,h2,h3,h4{font-family:var(--serif);font-weight:600;margin:0;letter-spacing:-.015em}
h1,h2{text-wrap:balance}
h1{font-size:clamp(2.4rem,5.4vw,4.3rem);line-height:1.04}
h2{font-size:clamp(1.85rem,3.4vw,2.8rem);line-height:1.12}
h3{font-family:var(--sans);font-weight:600;font-size:1.0625rem;letter-spacing:-.005em;line-height:1.35}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}

.contenedor{width:min(100% - 2.5rem,var(--ancho));margin-inline:auto}
@media (max-width:640px){.contenedor{width:min(100% - 2rem,var(--ancho))}}

.seccion{padding:clamp(4rem,8.5vw,7rem) 0}
.seccion--papel{background:var(--papel)}
.seccion--hueso{background:var(--hueso)}

.epigrafe{
  font-size:.7rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--verde);margin:0 0 1.1rem;display:flex;align-items:center;gap:.7rem;
}
.epigrafe::after{content:"";flex:1;height:1px;background:var(--arena)}
.sobre-foto .epigrafe{color:#A9CFB7}
.sobre-foto .epigrafe::after{background:rgba(255,255,255,.22)}

.plomo{font-size:clamp(1.05rem,1.6vw,1.2rem);line-height:1.6;color:var(--texto-2);max-width:var(--ancho-texto)}
.sobre-foto .plomo{color:#DCE6DF}

/* ------------------------------ cabecera ------------------------------- */
.cabecera{
  position:fixed;inset:0 0 auto;z-index:60;height:var(--cab);
  display:flex;align-items:center;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
  background:transparent;border-bottom:1px solid transparent;
}
.cabecera__fila{display:flex;align-items:center;gap:1.5rem;width:min(100% - 2.5rem,var(--ancho));margin-inline:auto}
.marca{display:flex;align-items:center;text-decoration:none;flex:0 0 auto;
  opacity:0;transform:translateY(-6px);transition:opacity .28s ease,transform .28s ease;pointer-events:none}
.marca img{height:34px;width:auto}
.nav{margin-left:auto;display:flex;align-items:center;gap:1.65rem}
.nav a{
  text-decoration:none;font-size:.9rem;font-weight:500;color:#EAF1EC;
  padding:.35rem 0;border-bottom:1.5px solid transparent;
  transition:color .18s,border-color .18s;text-shadow:0 1px 12px rgba(0,0,0,.45);
}
.nav a:hover{border-color:var(--verde-vivo)}
.menu-btn{display:none;margin-left:auto;background:none;border:0;padding:.5rem;color:#fff;cursor:pointer}
.menu-btn svg{width:26px;height:26px;filter:drop-shadow(0 1px 6px rgba(0,0,0,.5))}

/* estado sólido, al salir del hero */
.cabecera.pegada{background:rgba(247,245,239,.94);backdrop-filter:saturate(160%) blur(10px);
  border-bottom-color:var(--arena)}
.cabecera.pegada .marca{opacity:1;transform:none;pointer-events:auto}
.cabecera.pegada .nav a{color:var(--texto-2);text-shadow:none}
.cabecera.pegada .nav a:hover{color:var(--tinta);border-color:var(--acento)}
.cabecera.pegada .menu-btn{color:var(--tinta)}
.cabecera.pegada .menu-btn svg{filter:none}

.boton{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  font-family:var(--sans);font-size:.9rem;font-weight:600;line-height:1;
  padding:.82rem 1.3rem;border-radius:var(--r);text-decoration:none;
  border:1.5px solid transparent;cursor:pointer;transition:background .18s,color .18s,border-color .18s;
}
.boton--principal{background:var(--verde);color:#fff}
.boton--principal:hover{background:#245840}
.boton--claro{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.5);
  backdrop-filter:blur(4px)}
.boton--claro:hover{background:rgba(255,255,255,.2);border-color:#fff}
.boton--linea{background:transparent;color:var(--tinta);border-color:var(--arena)}
.boton--linea:hover{border-color:var(--verde);color:var(--verde)}
.boton svg{width:16px;height:16px;flex:0 0 auto}
.nav a.boton{border-bottom-color:transparent;text-shadow:none}
.nav a.boton--principal,.nav a.boton--principal:hover,
.cabecera.pegada .nav a.boton--principal{color:#fff;border-color:transparent}

@media (max-width:960px){
  .nav{position:fixed;inset:var(--cab) 0 auto;background:var(--hueso);border-bottom:1px solid var(--arena);
       flex-direction:column;align-items:stretch;gap:0;padding:.5rem 1.25rem 1.25rem;margin:0;
       box-shadow:0 18px 40px rgba(0,0,0,.12)}
  .nav[hidden]{display:none}
  .nav a{padding:.9rem 0;border-bottom:1px solid var(--arena);font-size:1rem;color:var(--texto-2);text-shadow:none}
  .nav a:hover{color:var(--tinta)}
  .nav .boton{margin-top:1rem;border-bottom:0}
  .menu-btn{display:block}
}

/* ------------------------- bloques con fotografía ---------------------- */
.foto-fondo{position:relative;isolation:isolate;overflow:hidden;color:#fff}
.foto-fondo>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.foto-fondo::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(9,22,17,.78) 0%,rgba(9,22,17,.70) 45%,rgba(9,22,17,.90) 100%),
    linear-gradient(95deg,rgba(9,22,17,.55) 0%,rgba(9,22,17,.18) 55%,rgba(9,22,17,0) 85%);
}
.foto-fondo h2,.foto-fondo h3{color:#fff}
.credito{
  position:absolute;right:1.5rem;bottom:1.1rem;z-index:2;
  font-size:.7rem;letter-spacing:.06em;color:rgba(255,255,255,.6);
  text-align:right;max-width:min(34rem,70vw);
}

/* -------------------------------- hero --------------------------------- */
.hero{position:relative;min-height:min(94vh,900px);display:flex;align-items:center;
  padding:calc(var(--cab) + 3rem) 0 6rem}
.hero::before{
  background:linear-gradient(180deg,rgba(9,22,17,.58) 0%,rgba(9,22,17,.34) 38%,rgba(9,22,17,.88) 100%);
}
.hero__inner{width:min(100% - 2.5rem,var(--ancho));margin-inline:auto;max-width:64rem}
.hero__logo{
  width:clamp(230px,30vw,420px);height:auto;margin-bottom:clamp(1.8rem,3.5vw,2.8rem);
  filter:drop-shadow(0 6px 26px rgba(0,0,0,.4));
}
.hero h1{color:#fff;margin-bottom:1.4rem;text-shadow:0 2px 26px rgba(0,0,0,.35)}
.hero h1 em{font-style:normal;color:#A9CFB7}
.hero__bajada{font-size:clamp(1.05rem,1.7vw,1.28rem);line-height:1.6;color:#DCE6DF;max-width:56ch;
  text-shadow:0 1px 16px rgba(0,0,0,.45)}
.hero__acciones{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2.3rem}
.hero__pie{
  display:flex;flex-wrap:wrap;gap:.55rem 1.9rem;margin-top:3rem;padding-top:1.5rem;
  border-top:1px solid rgba(255,255,255,.2);font-size:.82rem;color:#BFD1C6;
}
.hero__pie span{display:flex;align-items:center;gap:.5rem}
.hero__pie span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--verde-vivo);flex:0 0 auto}

/* --------------------------- enfoque con foto -------------------------- */
.encabezado-seccion{max-width:var(--ancho-texto);margin-bottom:clamp(2.4rem,4vw,3.4rem)}
.encabezado-seccion h2{margin-bottom:1rem}

.par{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:clamp(2rem,5vw,4.5rem);align-items:start}
@media (max-width:960px){.par{grid-template-columns:1fr}}
.par__foto{position:relative;border-radius:var(--r);overflow:hidden;background:var(--arena-2)}
.par__foto img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/5}
@media (max-width:960px){.par__foto img{aspect-ratio:16/9}}
.par__foto figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:1.5rem 1.1rem .9rem;
  font-size:.72rem;letter-spacing:.05em;color:rgba(255,255,255,.75);
  background:linear-gradient(180deg,transparent,rgba(9,22,17,.72));
}

.disciplinas{display:grid;gap:0;border-top:1px solid var(--arena)}
.disciplina{display:grid;grid-template-columns:2.8rem 1fr;gap:0 1rem;
  padding:1.5rem 0;border-bottom:1px solid var(--arena)}
.disciplina__num{font-family:var(--serif);font-weight:600;font-size:.92rem;color:var(--acento);padding-top:.15rem}
.disciplina h3{margin-bottom:.45rem}
.disciplina p{font-size:.95rem;color:var(--texto-2);margin:0}

/* ------------------------------ servicios ------------------------------ */
.servicios{display:grid;grid-template-columns:1fr;border-top:1px solid var(--arena)}
@media (min-width:900px){.servicios{grid-template-columns:1fr 1fr}}
.servicio{
  padding:1.9rem 0;border-bottom:1px solid var(--arena);
  display:grid;grid-template-columns:2.6rem 1fr;gap:0 1rem;align-items:start;
}
@media (min-width:900px){
  .servicio:nth-child(odd){border-right:1px solid var(--arena);padding-right:3rem}
  .servicio:nth-child(even){padding-left:3rem}
}
.servicio__num{font-family:var(--serif);font-weight:600;font-size:.9rem;color:var(--acento);padding-top:.2rem}
.servicio h3{margin-bottom:.5rem}
.servicio p{font-size:.95rem;color:var(--texto-2);margin:0}

/* -------------------------------- pasos -------------------------------- */
.pasos{display:grid;gap:0}
.paso{display:grid;grid-template-columns:5.5rem 1fr;gap:1.5rem;padding:1.85rem 0;
  border-top:1px solid rgba(255,255,255,.2)}
.paso:last-child{border-bottom:1px solid rgba(255,255,255,.2)}
.paso__num{font-family:var(--serif);font-size:1.5rem;color:#A9CFB7;line-height:1.2}
.paso h3{color:#fff;margin-bottom:.5rem;font-size:1.1rem}
.paso p{color:#DCE6DF;font-size:.97rem;max-width:64ch;margin:0}
@media (max-width:640px){.paso{grid-template-columns:1fr;gap:.5rem}}

/* -------------------------------- equipo ------------------------------- */
.equipo{display:grid;grid-template-columns:1fr;gap:clamp(2rem,3vw,2.8rem)}
@media (min-width:620px){.equipo{grid-template-columns:1fr 1fr}}
@media (min-width:1000px){.equipo{grid-template-columns:repeat(3,1fr)}}
.persona{display:flex;flex-direction:column}
.persona__foto{
  width:100%;max-width:230px;aspect-ratio:1;border-radius:50%;object-fit:cover;
  background:var(--tinta);margin-bottom:1.15rem;
  box-shadow:0 10px 30px rgba(18,36,28,.16);
}
.persona__rol{
  font-size:.66rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;
  color:var(--verde);margin-bottom:.4rem;
}
.persona h3{font-family:var(--serif);font-size:1.28rem;font-weight:600;margin-bottom:.6rem}
.persona p{font-size:.89rem;line-height:1.6;color:var(--texto-2);margin:0}

/* -------------------------- banda separadora --------------------------- */
figure{margin:0}
.banda{position:relative;margin:0;height:clamp(200px,28vw,360px);overflow:hidden}
.banda img{width:100%;height:100%;object-fit:cover}
.banda figcaption{
  position:absolute;right:1.25rem;bottom:.9rem;font-size:.7rem;letter-spacing:.05em;
  color:rgba(255,255,255,.7);text-shadow:0 1px 8px rgba(0,0,0,.5);
}

/* ------------------------------- hitos --------------------------------- */
.hitos{border-top:1px solid var(--arena)}
.hito{display:grid;grid-template-columns:7rem 1fr;gap:1.5rem;padding:1.5rem 0;
  border-bottom:1px solid var(--arena);align-items:baseline}
.hito__anio{font-family:var(--serif);font-size:1.4rem;font-weight:600;color:var(--verde)}
.hito p{margin:0;font-size:.98rem;max-width:64ch}
@media (max-width:640px){.hito{grid-template-columns:1fr;gap:.35rem}}

/* ------------------------------- prensa -------------------------------- */
.prensa{list-style:none;margin:0;padding:0;border-top:1px solid var(--arena)}
.prensa li{border-bottom:1px solid var(--arena)}
.prensa a{
  display:grid;grid-template-columns:11rem 1fr 1.5rem;gap:1.2rem;align-items:baseline;
  padding:1.15rem .5rem;text-decoration:none;transition:background .16s;
}
.prensa a:hover{background:var(--verde-suave)}
.prensa__medio{font-size:.72rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--texto-2)}
.prensa__titular{font-family:var(--serif);font-size:1.05rem;line-height:1.35;color:var(--texto)}
.prensa__flecha{color:var(--verde);font-size:.9rem;justify-self:end}
@media (max-width:760px){.prensa a{grid-template-columns:1fr;gap:.3rem}.prensa__flecha{display:none}}

/* ------------------------------ clientes ------------------------------- */
.clientes{display:flex;flex-wrap:wrap;gap:.6rem;margin:0;padding:0}
.clientes li{list-style:none;border:1px solid var(--arena);border-radius:999px;
  padding:.6rem 1.15rem;font-size:.9rem;color:var(--texto-2);background:var(--papel)}

/* -------------------------------- notas -------------------------------- */
.notas{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}
.nota-tarjeta{background:var(--papel);border:1px solid var(--arena);border-radius:var(--r);
  padding:1.7rem;display:flex;flex-direction:column;gap:.7rem;
  text-decoration:none;transition:background .16s,border-color .16s}
.nota-tarjeta:hover{background:var(--verde-suave);border-color:var(--verde)}
.nota-tarjeta time{font-size:.72rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--texto-2)}
.nota-tarjeta h3{font-family:var(--serif);font-size:1.22rem;line-height:1.28}
.nota-tarjeta p{font-size:.92rem;color:var(--texto-2);margin:0}
.vacio{padding:2.5rem;text-align:center;color:var(--texto-2);border:1px dashed var(--arena);font-size:.95rem}

/* ------------------------------ artículo ------------------------------- */
.articulo{max-width:var(--ancho-texto);margin-inline:auto}
.articulo h1{font-size:clamp(2rem,4.2vw,3.1rem);margin-bottom:1.1rem;color:var(--texto)}
.articulo__meta{font-size:.78rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;
  color:var(--texto-2);margin-bottom:2rem}
.articulo__bajada{font-size:1.2rem;line-height:1.55;color:var(--texto-2);margin-bottom:2rem}
.articulo__cuerpo{font-size:1.08rem;line-height:1.75}
.articulo__cuerpo h2{font-size:1.5rem;margin:2.4rem 0 .8rem}
.articulo__cuerpo h3{font-family:var(--serif);font-size:1.2rem;margin:1.9rem 0 .6rem}
.articulo__cuerpo ul,.articulo__cuerpo ol{padding-left:1.2rem;margin:0 0 1em}
.articulo__cuerpo li{margin-bottom:.4em}
.articulo__cuerpo a{color:var(--verde);text-underline-offset:3px}
.articulo__cuerpo blockquote{margin:1.8rem 0;padding-left:1.3rem;border-left:3px solid var(--verde);
  color:var(--texto-2);font-style:italic}
.pagina-interior{padding-top:var(--cab)}

/* ------------------------------- contacto ------------------------------ */
.contacto{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.5rem)}
@media (max-width:960px){.contacto{grid-template-columns:1fr}}
.datos{list-style:none;margin:2rem 0 0;padding:0;display:grid;gap:1.3rem}
.datos li{display:grid;gap:.25rem}
.datos .et{font-size:.7rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:#A9CFB7}
.datos a{font-family:var(--serif);font-size:1.28rem;color:#fff;text-decoration:none;
  border-bottom:1px solid rgba(255,255,255,.3);justify-self:start}
.datos a:hover{border-color:var(--verde-vivo)}
.datos span.valor{font-family:var(--serif);font-size:1.18rem;color:#fff}

.formulario{display:grid;gap:1rem;background:rgba(9,22,17,.34);backdrop-filter:blur(6px);
  padding:clamp(1.4rem,2.6vw,2rem);border-radius:var(--r);border:1px solid rgba(255,255,255,.16)}
.campo{display:grid;gap:.4rem}
.campo label{font-size:.72rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:#BFD1C6}
.campo input,.campo textarea{
  font-family:var(--sans);font-size:1rem;color:#fff;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.22);border-radius:var(--r);padding:.8rem .9rem;width:100%;
}
.campo input::placeholder,.campo textarea::placeholder{color:#93A89A}
.campo input:focus,.campo textarea:focus{outline:none;border-color:var(--verde-vivo);background:rgba(255,255,255,.13)}
.campo textarea{min-height:120px;resize:vertical}
.aviso{font-size:.82rem;color:#A6B8AC;margin:0}
.estado{font-size:.9rem;padding:.7rem .9rem;border-radius:var(--r);display:none}
.estado--ok{display:block;background:rgba(120,190,150,.22);color:#D3EBDC}
.estado--error{display:block;background:rgba(210,120,90,.24);color:#F5CDBB}
.miel{position:absolute;left:-9999px;opacity:0;height:0;width:0}

/* --------------------------------- pie --------------------------------- */
.pie{background:var(--tinta);color:#A9BCB1;padding:3.2rem 0 2rem;font-size:.88rem}
.pie__fila{display:flex;flex-wrap:wrap;gap:2rem;justify-content:space-between;align-items:flex-start}
.pie img.logo{height:42px;width:auto;margin-bottom:1.1rem}
.pie a{color:#A9BCB1;text-decoration:none}
.pie a:hover{color:#fff}
.pie__nav{display:flex;flex-wrap:wrap;gap:1.2rem}
.pie__linea{margin-top:2.5rem;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:center;
  font-size:.78rem;color:#7E9188}
.mahca{display:inline-flex;align-items:center;gap:.45rem;text-decoration:none;color:inherit;opacity:.85}
.mahca:hover{opacity:1;color:#fff}
.mahca svg{width:15px;height:15px}

/* ------------------------------ utilidades ----------------------------- */
.solo-lectores{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}
.saltar{position:absolute;left:-9999px;top:0;background:var(--verde);color:#fff;padding:.7rem 1rem;z-index:100}
.saltar:focus{left:.5rem;top:.5rem}
.volver{display:inline-flex;align-items:center;gap:.5rem;font-size:.85rem;font-weight:500;
  color:var(--texto-2);text-decoration:none;margin-bottom:2rem}
.volver:hover{color:var(--verde)}
.wa{width:16px;height:16px;fill:currentColor}