/* ==========================================================================
   1. TOKENS — sistema de diseño centralizado
   Cambiar acá se propaga a toda la página.
========================================================================== */
:root{
  /* color */
  --forest:        #0F3B31;
  --forest-2:       #133F34;
  --forest-deep:    #0A2A22;
  --gold:           #B98A46;
  --gold-light:     #D9B579;
  --cream:          #F7F3EA;
  --cream-2:        #EFE9DA;
  --ink:            #1B231F;
  --ink-soft:       #4B564F;
  --terracotta:     #A65C3E;
  --sage:           #7C9483;
  --line-on-dark:   rgba(247,243,234,0.16);
  --line-on-light:  rgba(27,35,31,0.14);

  /* tipografía */
  --font-display: "Space Grotesk", sans-serif;
  --font-body:    "Inter", sans-serif;

  --fs-h1:   clamp(2.4rem, 5vw, 4.4rem);
  --fs-h2:   clamp(1.9rem, 3.6vw, 2.9rem);
  --fs-h3:   clamp(1.25rem, 2vw, 1.5rem);
  --fs-lead: clamp(1.05rem, 1.6vw, 1.25rem);
  --fs-body: 1rem;
  --fs-small:0.875rem;

  /* layout */
  --max-w: 1180px;
  --pad-section: clamp(4rem, 9vw, 7.5rem);
  --pad-inline: clamp(1.5rem, 5vw, 3rem);
  --radius: 4px;

  /* motion */
  --ease: cubic-bezier(.4,0,.2,1);
}

/* ==========================================================================
   2. RESET / BASE
========================================================================== */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; cursor:pointer; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p{ margin:0; }
.section-inner{
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: var(--pad-inline);
  padding-right: var(--pad-inline);
}
section{ padding-top: var(--pad-section); padding-bottom: var(--pad-section); }

/* foco visible accesible */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* respeta reduce-motion */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* utilidades tipográficas */
.eyebrow-note{ /* nota discreta, no es un eyebrow decorativo repetido */
  font-size: var(--fs-small);
  color: var(--gold);
  font-weight: 500;
}
.section-heading{
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-h2);
  line-height: 1.15;
  max-width: 14ch;
}
.section-lead{
  font-size: var(--fs-lead);
  color: var(--ink-soft);
  max-width: 46ch;
  margin-top: 1.1rem;
}
.on-dark .section-lead{ color: rgba(247,243,234,0.72); }
.on-dark{ color: var(--cream); }

.btn{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  padding: .9rem 1.7rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid transparent;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .2s var(--ease);
}
.btn-primary{ background: var(--gold); color: var(--forest-deep); }
.btn-primary:hover{ background: var(--gold-light); transform: translateY(-1px); }
.btn-ghost-dark{ border-color: var(--line-on-dark); color: var(--cream); }
.btn-ghost-dark:hover{ border-color: var(--gold); color: var(--gold-light); }
.btn-ghost-light{ border-color: var(--line-on-light); color: var(--ink); }
.btn-ghost-light:hover{ border-color: var(--terracotta); color: var(--terracotta); }

/* ==========================================================================
   3. HEADER
========================================================================== */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15,59,49,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line-on-dark);
}
.site-header .section-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.brand{
  display:flex;
  align-items:center;
  gap:.65rem;
  color: var(--cream);
}
.brand svg{ width:30px; height:30px; flex-shrink:0; }
.brand-word{
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: .12em;
  font-size: 1.05rem;
}
.brand-word span{ color: var(--gold-light); }

.main-nav{ display:flex; align-items:center; gap: 2.2rem; }
.main-nav a{
  color: rgba(247,243,234,0.78);
  font-size: .95rem;
  font-weight: 500;
  transition: color .2s var(--ease);
}
.main-nav a:hover{ color: var(--gold-light); }
.nav-cta{ display:none; }
@media (min-width: 860px){ .nav-cta{ display:inline-flex; } }

.nav-toggle{
  display:flex;
  background:none;
  border:none;
  color: var(--cream);
  padding:.4rem;
}
@media (min-width: 860px){ .nav-toggle{ display:none; } }
.main-nav{ }
@media (max-width: 859px){
  .main-nav{
    position:absolute;
    top:100%; left:0; right:0;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    background: var(--forest);
    border-bottom: 1px solid var(--line-on-dark);
    max-height:0;
    overflow:hidden;
    transition: max-height .3s var(--ease);
  }
  .main-nav.is-open{ max-height: 320px; }
  .main-nav a{ padding: .9rem var(--pad-inline); width:100%; border-top:1px solid var(--line-on-dark); }
  .main-nav .nav-cta{ display:inline-flex; margin: 1rem var(--pad-inline) 1.4rem; }
}

/* ==========================================================================
   4. HERO
========================================================================== */
.hero{
  background: radial-gradient(120% 140% at 78% 10%, var(--forest-2) 0%, var(--forest) 46%, var(--forest-deep) 100%);
  color: var(--cream);
  padding-top: clamp(3.5rem, 8vw, 6rem);
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
  overflow: hidden;
  position: relative;
}
.hero .section-inner{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items:center;
}
@media (max-width: 880px){
  .hero .section-inner{ grid-template-columns: 1fr; }
  .hero-visual{ order:-1; height: 220px; }
}
.hero-copy h1{
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-h1);
  line-height: 1.08;
  letter-spacing: -0.01em;
}
.hero-copy h1 em{
  font-style: normal;
  font-weight: 700;
  color: var(--gold-light);
}
.hero-copy p{
  margin-top: 1.4rem;
  font-size: var(--fs-lead);
  color: rgba(247,243,234,0.75);
  max-width: 46ch;
}
.hero-actions{
  margin-top: 2.2rem;
  display:flex;
  flex-wrap:wrap;
  gap: 1rem;
}
.hero-meta{
  margin-top: 3rem;
  display:flex;
  gap: clamp(1.5rem, 4vw, 3rem);
  flex-wrap:wrap;
}
.hero-meta div{ border-left: 2px solid var(--gold); padding-left: .8rem; }
.hero-meta strong{
  display:block;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
}
.hero-meta span{ font-size: var(--fs-small); color: rgba(247,243,234,0.6); }

/* visual: red de ramas — se dibuja una vez al cargar y luego queda con vida:
   cada grupo de ramas se mece de forma independiente (como al viento) y los
   nodos de los extremos laten suavemente. El tronco central queda fijo. */
.hero-visual{ position:relative; height: 100%; min-height: 340px; }
.hero-visual svg{ width:100%; height:100%; overflow: visible; }

.branch-line{
  fill:none;
  stroke: var(--gold);
  stroke-width: 1.3;
  stroke-linecap: round;
  opacity: .75;
  stroke-dasharray: 420;
  stroke-dashoffset: 420;
  animation: draw 1.1s var(--ease) forwards;
}
.branch-node{
  fill: var(--gold-light);
  opacity:0;
  animation: appear .5s var(--ease) forwards;
}
@keyframes draw{ to{ stroke-dashoffset: 0; } }
@keyframes appear{ to{ opacity: 1; } }

/* balanceo continuo de cada rama principal, con duraciones distintas para
   que el movimiento se sienta orgánico y no sincronizado */
.sway{
  transform-box: fill-box;
  transform-origin: center;
  animation-name: sway;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
}
@keyframes sway{
  0%   { transform: rotate(-1deg); }
  50%  { transform: rotate(1.1deg); }
  100% { transform: rotate(-1deg); }
}

/* pulso suave en los nodos de los extremos: da sensación de red viva.
   Se declaran dos animaciones en paralelo (aparición inicial + latido
   continuo) como listas separadas por coma, para poder afinar cada delay/
   duración por nodo desde el HTML sin que una pise a la otra. */
.pulse{
  transform-box: fill-box;
  transform-origin: center;
  animation-name: appear, pulse;
  animation-timing-function: var(--ease), ease-in-out;
  animation-iteration-count: 1, infinite;
  animation-fill-mode: forwards, none;
  animation-duration: .5s, 3.4s;
  animation-delay: 0s, 0s;
}
@keyframes pulse{
  0%, 100%{ transform: scale(1);    opacity: .85; }
  50%     { transform: scale(1.35); opacity: 1;   }
}

/* ==========================================================================
   5. QUIÉNES SOMOS
========================================================================== */
.about{ background: var(--cream); }
.about .section-inner{ max-width: 1100px; }

.about-grid{
  margin-top: 2.6rem;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items:start;
}
@media (max-width: 780px){ .about-grid{ grid-template-columns: 1fr; } }

.about-body p{ color: var(--ink-soft); max-width: 46ch; }
.about-body p + p{ margin-top: 1.2rem; }

.about-photo{
  position: relative;
  border-radius: var(--radius);
  overflow:hidden;
  aspect-ratio: 4 / 5;
  background: var(--forest-deep);
}
.about-photo img{
  width:100%;
  height:100%;
  object-fit: cover;
  display:block;
}
.about-photo::after{
  content:"";
  position:absolute;
  inset:0;
  /* mismo tinte verde de marca que las fotos de servicios, para que se sientan del mismo sitio */
  background: linear-gradient(160deg, rgba(15,59,49,0.30) 0%, rgba(15,59,49,0) 45%, rgba(10,42,34,0.5) 100%);
  pointer-events:none;
}
@media (max-width: 780px){ .about-photo{ aspect-ratio: 16 / 10; } }

/* ==========================================================================
   6. SERVICIOS
========================================================================== */
.services{
  background: var(--forest-deep);
  color: var(--cream);
}
.services-head{ max-width: 640px; }
.tabs{
  margin-top: 2.6rem;
  display:inline-flex;
  gap: .4rem;
  padding: .35rem;
  border: 1px solid var(--line-on-dark);
  border-radius: 999px;
}
.tab-btn{
  background:none;
  border:none;
  color: rgba(247,243,234,0.65);
  padding: .65rem 1.3rem;
  border-radius: 999px;
  font-size: .9rem;
  font-weight: 600;
  transition: background .25s var(--ease), color .25s var(--ease);
}
.tab-btn[aria-selected="true"]{ background: var(--gold); color: var(--forest-deep); }
.tab-btn:not([aria-selected="true"]):hover{ color: var(--cream); }

.service-panel{ margin-top: 3rem; }
.service-panel[hidden]{ display:none; }

.service-panel-inner{
  display:grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items:start;
}
@media (max-width: 860px){
  .service-panel-inner{ grid-template-columns: 1fr; }
}

.service-photo{
  position: relative;
  border-radius: var(--radius);
  overflow:hidden;
  aspect-ratio: 4 / 5;
  /* leve tinte verde de marca sobre la foto, para integrarla a la paleta */
  background: var(--forest-deep);
}
@media (min-width: 861px){
  .service-photo{ position: sticky; top: 6rem; }
}
.service-photo img{
  width:100%;
  height:100%;
  object-fit: cover;
  display:block;
}
.service-photo::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(160deg, rgba(15,59,49,0.35) 0%, rgba(15,59,49,0) 45%, rgba(10,42,34,0.55) 100%);
  pointer-events:none;
}
@media (max-width: 860px){
  .service-photo{ aspect-ratio: 16 / 10; }
}

.service-note{
  font-size: var(--fs-small);
  color: rgba(247,243,234,0.55);
  max-width: 50ch;
  margin-bottom: 2.2rem;
  padding-bottom: 1.6rem;
  border-bottom: 1px solid var(--line-on-dark);
}

/* lista tipo "rama": línea vertical dorada con nodos, cada ítem se desprende de ella */
.branch-list{
  position:relative;
  padding-left: 2.1rem;
}
.branch-list::before{
  content:"";
  position:absolute;
  left: .3rem;
  top: .5rem;
  bottom: .5rem;
  width: 1px;
  background: var(--line-on-dark);
}
.branch-item{
  position:relative;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line-on-dark);
  display:grid;
  grid-template-columns: minmax(0,1fr) minmax(0,1.4fr);
  gap: .4rem 2rem;
}
.branch-item:last-child{ border-bottom:none; }
.branch-item::before{
  content:"";
  position:absolute;
  left: -1.8rem;
  top: 1.55rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}
@media (max-width: 700px){
  .branch-item{ grid-template-columns: 1fr; gap:.35rem; }
}
.branch-item h4{
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.1rem;
}
.branch-item p{ color: rgba(247,243,234,0.65); font-size: .96rem; }

/* ==========================================================================
   7. POR QUÉ KIMÜN
========================================================================== */
.why{ background: var(--cream); }
.why-grid{
  margin-top: 3.2rem;
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line-on-light);
  border-left: 1px solid var(--line-on-light);
}
@media (max-width: 720px){ .why-grid{ grid-template-columns: 1fr; } }
.why-item{
  padding: 2.4rem;
  border-right: 1px solid var(--line-on-light);
  border-bottom: 1px solid var(--line-on-light);
}
.why-item svg{ width: 30px; height: 30px; color: var(--terracotta); margin-bottom: 1.3rem; }
.why-item h3{
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.25rem;
  margin-bottom: .6rem;
}
.why-item p{ color: var(--ink-soft); max-width: 34ch; }

/* ==========================================================================
   8. CTA + FORMULARIO
========================================================================== */
.contact{
  background: linear-gradient(180deg, var(--forest) 0%, var(--forest-deep) 100%);
  color: var(--cream);
}
.contact .section-inner{
  display:grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2.5rem, 6vw, 4.5rem);
  align-items:start;
}
@media (max-width: 900px){ .contact .section-inner{ grid-template-columns: 1fr; } }

.contact-info p{ margin-top: 1.2rem; color: rgba(247,243,234,0.72); max-width: 40ch; }
.direct-contact{ margin-top: 2.4rem; display:flex; flex-direction:column; gap: 1rem; }
.direct-contact a{
  display:flex; align-items:center; gap: .8rem;
  font-size: .96rem; color: var(--cream);
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--line-on-dark);
  transition: color .2s var(--ease);
}
.direct-contact a:hover{ color: var(--gold-light); }
.direct-contact svg{ width:18px; height:18px; color: var(--gold); flex-shrink:0; }

.contact-form-card{
  background: var(--cream);
  color: var(--ink);
  border-radius: var(--radius);
  padding: clamp(1.8rem, 4vw, 2.6rem);
}
.form-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.form-grid .field-full{ grid-column: 1 / -1; }
@media (max-width: 560px){ .form-grid{ grid-template-columns: 1fr; } }

.field label{
  display:block;
  font-size: .82rem;
  font-weight: 600;
  margin-bottom: .4rem;
  color: var(--ink-soft);
}
.field input, .field select, .field textarea{
  width:100%;
  font: inherit;
  font-size: .96rem;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line-on-light);
  border-radius: var(--radius);
  padding: .75rem .9rem;
  transition: border-color .2s var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color: var(--gold); }
.field textarea{ resize: vertical; min-height: 96px; }

.form-submit{
  margin-top: 1.6rem;
  width:100%;
  justify-content:center;
}
.form-status{
  margin-top: 1rem;
  font-size: .88rem;
  min-height: 1.2em;
}
.form-status.is-success{ color: #2E6B4F; }
.form-status.is-error{ color: var(--terracotta); }
.field-error{
  font-size: .78rem;
  color: var(--terracotta);
  margin-top: .3rem;
  min-height: 1em;
}

/* ==========================================================================
   9. FOOTER
========================================================================== */
.site-footer{ background: var(--forest-deep); color: rgba(247,243,234,0.6); }
.site-footer .section-inner{
  padding-top: 3rem; padding-bottom: 2.5rem;
  display:flex; flex-wrap:wrap; gap: 2rem;
  justify-content:space-between; align-items:center;
  border-top: 1px solid var(--line-on-dark);
}
.footer-brand{ display:flex; align-items:center; gap:.6rem; color: var(--cream); }
.footer-brand svg{ width:22px; height:22px; }
.footer-nav{ display:flex; gap: 1.6rem; flex-wrap:wrap; }
.footer-nav a{ font-size: .88rem; transition: color .2s var(--ease); }
.footer-nav a:hover{ color: var(--gold-light); }
.footer-fine{ font-size: .8rem; width:100%; padding-top: 1.6rem; }