:root{
  --vid:#1F3D2B;        /* verde vid, color principal */
  --hoja:#5E8A3C;       /* verde hoja, acentos */
  --salmuera:#EDF2E3;   /* fondo tenue verde-limón */
  --azafran:#C8922B;    /* dorado, botones de acción */
  --azafran-osc:#A87715;
  --tinta:#18231B;
  --suave:#4B5A4F;
  --blanco:#FFFFFF;
  --linea:#D4DEC6;
  --radio:10px;
  --serif:"Young Serif",Georgia,serif;
  --sans:"Figtree",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;font-family:var(--sans);font-size:1.0625rem;line-height:1.6;color:var(--tinta);background:var(--blanco)}
img{max-width:100%;display:block}
a{color:var(--vid)}
:focus-visible{outline:3px solid var(--azafran);outline-offset:3px}
.wrap{width:min(1120px,100% - 2.5rem);margin-inline:auto}
.narrow{width:min(760px,100% - 2.5rem)}

h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.15;margin:0 0 .6em;color:var(--vid)}
h1{font-size:clamp(2.2rem,5.2vw,3.6rem);letter-spacing:-.01em}
h2{font-size:clamp(1.7rem,3.4vw,2.3rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em;max-width:62ch}
.lead{font-size:1.2rem;color:var(--suave)}
.sub{color:var(--suave);margin-bottom:2rem}
.kicker{font-weight:600;color:var(--hoja);margin-bottom:.8rem}

/* Botones */
.btn{display:inline-block;background:var(--azafran);color:#1b1405;font-weight:700;text-decoration:none;
  padding:.85rem 1.5rem;border-radius:var(--radio);border:2px solid var(--azafran);cursor:pointer;font:inherit;font-weight:700;
  transition:background .2s,border-color .2s}
.btn:hover{background:var(--azafran-osc);border-color:var(--azafran-osc)}
.btn-ghost{background:transparent;color:var(--vid);border-color:var(--vid)}
.btn-ghost:hover{background:var(--vid);border-color:var(--vid);color:var(--blanco)}
.btn-light{background:var(--blanco);border-color:var(--blanco);color:var(--vid)}
.btn-light:hover{background:var(--salmuera);border-color:var(--salmuera)}
.btn-small{padding:.5rem 1.1rem}

/* Header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-bottom-color:var(--linea)}
.bar{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:1rem}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;font-family:var(--serif);font-size:1.15rem;color:var(--vid)}
.brand-mark{width:26px;height:26px;background:var(--hoja);border-radius:0 70% 0 70%}
.nav{display:flex;align-items:center;gap:1.4rem}
.nav a:not(.btn){text-decoration:none;font-weight:500;color:var(--tinta)}
.nav a:not(.btn):hover{color:var(--hoja)}
.nav-toggle{display:none;background:none;border:2px solid var(--vid);color:var(--vid);border-radius:8px;padding:.4rem .8rem;font:inherit;font-weight:600}

/* Placeholders de imagen */
.ph{position:relative;display:grid;place-items:center;text-align:center;padding:1.2rem;border-radius:var(--radio);
  background:repeating-linear-gradient(135deg,#E3EBD3 0 14px,#EAF0DD 14px 28px);border:2px dashed var(--hoja);
  color:var(--vid);font-weight:600;font-size:.95rem}
.ph-hero{aspect-ratio:4/5;max-height:560px}
.ph-wide{aspect-ratio:4/3}
.ph-card{aspect-ratio:3/2;margin-bottom:1rem}
.ph-dark{background:repeating-linear-gradient(135deg,#2A4D37 0 14px,#2F5640 14px 28px);border-color:#9DBE7C;color:#E6F0D9}

/* Secciones */
.section{padding:clamp(3.5rem,8vw,6rem) 0}
.tint{background:var(--salmuera)}
.dark{background:var(--vid);color:#E6F0D9}
.dark h2,.dark h3{color:var(--blanco)}

.hero{background:linear-gradient(180deg,var(--salmuera),var(--blanco));padding:clamp(2.5rem,6vw,5rem) 0}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(1.5rem,5vw,4rem);align-items:center}
.cta-row{display:flex;flex-wrap:wrap;gap:.8rem;margin:1.6rem 0}
.hero-points{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;color:var(--suave);font-weight:500}
.hero-points li{padding-left:1.3rem;position:relative}
.hero-points li::before{content:"";position:absolute;left:0;top:.5em;width:.7rem;height:.7rem;background:var(--hoja);border-radius:0 70% 0 70%}

.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,5vw,4rem);align-items:center}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:1.6rem;margin-top:2rem}

.card{background:var(--blanco);padding:1rem 1rem 1.2rem;border-radius:var(--radio);border:1px solid var(--linea)}
.card p{margin:0;color:var(--suave)}
.benefit{border-top:3px solid var(--hoja);padding-top:1rem}
.benefit p{color:var(--suave);margin:0}
.audience{background:var(--salmuera);border-radius:var(--radio);padding:1.6rem}
.audience p{margin:0;color:var(--suave)}
#clientes .grid3{margin-top:2rem}

/* Ficha técnica */
.specs{margin:1.5rem 0 2rem}
.specs div{display:flex;justify-content:space-between;gap:1rem;padding:.7rem 0;border-bottom:1px solid rgba(255,255,255,.18)}
.specs dt{font-weight:600}
.specs dd{margin:0;text-align:right;color:#CFE0BC}

/* Pasos (sí es una secuencia) */
.steps{list-style:none;counter-reset:paso;padding:0;margin:2rem 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.steps li{counter-increment:paso;background:var(--blanco);padding:1.4rem;border-radius:var(--radio);border:1px solid var(--linea)}
.steps li::before{content:counter(paso);display:grid;place-items:center;width:2.2rem;height:2.2rem;border-radius:50%;background:var(--vid);color:var(--blanco);font-weight:700;margin-bottom:.8rem}
.steps strong{display:block;color:var(--vid);margin-bottom:.3rem}

/* FAQ */
details{border-bottom:1px solid var(--linea);padding:1rem 0}
summary{cursor:pointer;font-weight:600;color:var(--vid);list-style:none;display:flex;justify-content:space-between;gap:1rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--hoja)}
details[open] summary::after{content:"−"}
details p{margin:.8rem 0 0;color:var(--suave)}

/* Cotizar */
.cta-final{background:var(--vid);color:#E6F0D9}
.cta-final h2{color:var(--blanco)}
.cta-final a{color:#F3D58E}
.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(1.5rem,5vw,4rem);align-items:start}
.small{font-size:.95rem}
.form{background:var(--blanco);color:var(--tinta);padding:1.6rem;border-radius:var(--radio);display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.form label{display:grid;gap:.35rem;font-weight:600;font-size:.95rem;color:var(--vid)}
.form label:first-child,.form label:nth-child(2),.form .btn,.form-msg{grid-column:1/-1}
.form input,.form select{font:inherit;padding:.7rem .8rem;border:1.5px solid #B9C7A8;border-radius:8px;background:#fff;color:var(--tinta)}
.form input:focus,.form select:focus{outline:3px solid var(--azafran);outline-offset:1px;border-color:var(--azafran)}
.form .invalid{border-color:#B3261E}
.form-msg{margin:0;min-height:1.2em;color:#B3261E;font-weight:600;font-size:.95rem}

/* Footer y WhatsApp flotante */
.site-footer{background:#14291D;color:#B8C9A8;padding:1.6rem 0;font-size:.95rem}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem}
.site-footer a{color:#F3D58E}
.wa-float{position:fixed;right:1rem;bottom:1rem;z-index:30;background:#1FA855;color:#fff;font-weight:700;text-decoration:none;padding:.8rem 1.2rem;border-radius:999px;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.wa-float:hover{background:#178A45}

/* Responsive */
@media (max-width:900px){
  .hero-grid,.split,.cta-grid{grid-template-columns:1fr}
  .grid3,.steps{grid-template-columns:1fr}
  .grid4{grid-template-columns:1fr 1fr}
  .ph-hero{aspect-ratio:4/3;max-height:none}
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:64px;background:var(--blanco);flex-direction:column;align-items:stretch;padding:1rem 1.25rem 1.4rem;border-bottom:1px solid var(--linea);gap:1rem}
  .nav.open{display:flex}
  .nav .btn{text-align:center}
}
@media (max-width:560px){
  .grid4,.form{grid-template-columns:1fr}
  .form label,.form .btn{grid-column:1/-1}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
}