/*
Theme Name: Cartonajes Sánchez
Theme URI: https://cartonajesanchez.com/
Author: Cartonajes Sánchez
Description: Tema a medida para cartonajesanchez.com. Packaging editorial, artesanía premium y arquitectura SEO según la propuesta Look & Feel (septiembre 2026).
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
License: Propietario
Text Domain: cartonajes-sanchez
*/

:root{
  --burdeos:#7A232B; --burdeos-d:#5f1a21; --terracota:#9B5B46; --kraft:#B99A75;
  --arena:#E8DDD0; --marfil:#F8F4EE; --carbon:#292522; --gris:#6b645d; --blanco:#fff;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --radio:6px; --max:1200px; --sombra:0 1px 2px rgba(41,37,34,.06),0 6px 18px rgba(41,37,34,.07);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--marfil);color:var(--carbon);font-family:var(--sans);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--burdeos);text-underline-offset:3px}
a:hover{color:var(--burdeos-d)}
:focus-visible{outline:3px solid var(--terracota);outline-offset:2px}
.screen-reader-text,.cs-skip{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.cs-skip:focus{left:12px;top:12px;width:auto;height:auto;z-index:1000;background:var(--blanco);padding:10px 14px;border-radius:var(--radio)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.2;color:var(--carbon);margin:0 0 .6em}
h1{font-size:clamp(2rem,4.6vw,3.2rem)}
h2{font-size:clamp(1.5rem,2.8vw,2.1rem)}
h3{font-size:1.25rem}
p{margin:0 0 1.1em}
.cs-wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.cs-kicker{font-family:var(--sans);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--terracota);font-weight:600;margin:0 0 .7em}

/* Botones */
.cs-btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:44px;padding:.65em 1.4em;border-radius:var(--radio);border:2px solid var(--burdeos);background:var(--burdeos);color:var(--marfil);font:600 1rem/1.2 var(--sans);text-decoration:none;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.cs-btn:hover{background:var(--burdeos-d);border-color:var(--burdeos-d);color:var(--marfil)}
.cs-btn--ghost{background:transparent;color:var(--burdeos)}
.cs-btn--ghost:hover{background:var(--burdeos);color:var(--marfil)}
.cs-btn--light{background:var(--marfil);border-color:var(--marfil);color:var(--burdeos)}
.cs-btn--light:hover{background:var(--arena);border-color:var(--arena);color:var(--burdeos-d)}
.cs-btn--ghost-light{background:transparent;border-color:var(--marfil);color:var(--marfil)}
.cs-btn--ghost-light:hover{background:var(--marfil);color:var(--burdeos)}
.cs-link{font-weight:600;text-decoration:none;display:inline-flex;gap:.4em;align-items:center}
.cs-link:hover{text-decoration:underline}

/* Barra superior */
.cs-top{background:var(--burdeos);color:var(--marfil);font-size:.86rem}
.cs-top .cs-wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:7px;padding-bottom:7px}
.cs-top a{color:var(--marfil);text-decoration:none}
.cs-top a:hover{text-decoration:underline;color:var(--marfil)}
.cs-top__l,.cs-top__r{display:flex;gap:20px;flex-wrap:wrap}

/* Cabecera */
.cs-header{background:var(--marfil);border-bottom:1px solid var(--arena);position:sticky;top:0;z-index:50}
.cs-header .cs-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px}
.cs-logo{display:flex;flex-direction:column;align-items:center;text-decoration:none;color:var(--burdeos);line-height:1}
.cs-logo__name{font:600 1.35rem/1.05 var(--serif);letter-spacing:.06em;text-transform:uppercase;text-align:center}
.cs-logo__since{font:600 .6rem/1 var(--sans);letter-spacing:.28em;text-transform:uppercase;margin-top:6px;border-top:1px solid currentColor;padding-top:5px;width:100%;text-align:center}
.custom-logo{max-height:60px;width:auto}
.cs-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:24px;align-items:center}
.cs-nav a{color:var(--carbon);text-decoration:none;font-weight:500;font-size:.95rem;padding:8px 0;border-bottom:2px solid transparent}
.cs-nav a:hover,.cs-nav .current-menu-item>a,.cs-nav .current_page_item>a,.cs-nav .current-menu-ancestor>a{border-bottom-color:var(--burdeos);color:var(--burdeos)}
.cs-header__cta{display:none}
.cs-burger{display:none;background:none;border:2px solid var(--burdeos);border-radius:var(--radio);width:46px;height:46px;cursor:pointer;color:var(--burdeos)}
.cs-burger span{display:block;width:22px;height:2px;background:currentColor;margin:5px auto}
@media (min-width:1101px){.cs-header__cta{display:inline-flex}}
@media (max-width:1100px){
  .cs-burger{display:block}
  .cs-nav{position:absolute;left:0;right:0;top:100%;background:var(--marfil);border-bottom:1px solid var(--arena);display:none;padding:10px 20px 20px;box-shadow:var(--sombra)}
  .cs-nav.is-open{display:block}
  .cs-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .cs-nav a{display:block;padding:14px 0;border-bottom:1px solid var(--arena)}
  .cs-nav .cs-btn{margin-top:14px;width:100%}
}
.cs-nav__cta{display:none}
@media (max-width:1100px){.cs-nav__cta{display:block}}
.cs-header{position:sticky}
.cs-header .cs-wrap{position:relative}

/* Hero */
.cs-hero{position:relative;color:var(--marfil);background:linear-gradient(115deg,#2c2420 0%,#4a3326 55%,#7A232B 130%);background-size:cover;background-position:center}
.cs-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(32,24,20,.82) 0%,rgba(32,24,20,.55) 55%,rgba(32,24,20,.2) 100%)}
.cs-hero .cs-wrap{position:relative;padding-top:clamp(56px,9vw,120px);padding-bottom:clamp(56px,9vw,120px)}
.cs-hero__in{max-width:620px}
.cs-hero .cs-kicker{color:var(--kraft)}
.cs-hero h1{color:var(--marfil);margin-bottom:.45em}
.cs-hero p.cs-lead{font-size:1.15rem;color:var(--arena);max-width:520px}
.cs-hero__btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:1.6em}

/* Confianza */
.cs-trust{background:var(--arena);border-bottom:1px solid #d9ccbb}
.cs-trust ul{list-style:none;margin:0 auto;padding:22px 20px;max-width:var(--max);display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cs-trust li{display:flex;gap:14px;align-items:center}
.cs-trust svg{flex:0 0 38px;width:38px;height:38px;stroke:var(--burdeos);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.cs-trust strong{display:block;font-size:.98rem;line-height:1.2}
.cs-trust span{font-size:.86rem;color:var(--gris);line-height:1.3;display:block}
@media(max-width:900px){.cs-trust ul{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.cs-trust ul{grid-template-columns:1fr}}

/* Secciones */
.cs-sec{padding:clamp(44px,6vw,76px) 0}
.cs-sec--arena{background:var(--arena)}
.cs-sec--blanco{background:var(--blanco)}
.cs-sec__head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.cs-sec__head h2{margin:0}

/* Tarjetas */
.cs-grid{display:grid;gap:18px}
.cs-grid--6{grid-template-columns:repeat(6,1fr)}
.cs-grid--4{grid-template-columns:repeat(4,1fr)}
.cs-grid--3{grid-template-columns:repeat(3,1fr)}
@media(max-width:1100px){.cs-grid--6{grid-template-columns:repeat(3,1fr)}.cs-grid--4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.cs-grid--6,.cs-grid--3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:460px){.cs-grid--6,.cs-grid--4,.cs-grid--3{grid-template-columns:1fr}}
.cs-card{background:var(--blanco);border-radius:var(--radio);overflow:hidden;box-shadow:var(--sombra);display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:transform .15s}
.cs-card:hover{transform:translateY(-3px);color:inherit}
.cs-card__img{aspect-ratio:4/3;background:linear-gradient(135deg,var(--arena),var(--kraft));display:flex;align-items:center;justify-content:center;overflow:hidden}
.cs-card__img img{width:100%;height:100%;object-fit:cover}
.cs-card__img svg{width:56px;height:56px;stroke:var(--burdeos);fill:none;stroke-width:1.2;stroke-linecap:round;stroke-linejoin:round;opacity:.65}
.cs-card__body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.cs-card__body h3{font-size:1.05rem;margin:0}
.cs-card__body p{font-size:.9rem;color:var(--gris);margin:0;line-height:1.45}
.cs-card__more{margin-top:auto;padding-top:8px;font-weight:600;font-size:.9rem;color:var(--burdeos)}

/* Proceso */
.cs-process{display:grid;grid-template-columns:1fr 1.6fr;gap:40px;align-items:center}
.cs-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:paso}
.cs-steps li{counter-increment:paso}
.cs-steps li::before{content:counter(paso);display:flex;width:34px;height:34px;border-radius:50%;background:var(--burdeos);color:var(--marfil);font-weight:700;align-items:center;justify-content:center;margin-bottom:12px}
.cs-steps strong{display:block;font-family:var(--serif);font-size:1.05rem;margin-bottom:4px}
.cs-steps span{font-size:.92rem;color:var(--gris);line-height:1.45;display:block}
@media(max-width:1000px){.cs-process{grid-template-columns:1fr}.cs-steps{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.cs-steps{grid-template-columns:1fr}}

/* Materiales */
.cs-split{display:grid;grid-template-columns:.8fr 2fr;gap:36px;align-items:center}
@media(max-width:1000px){.cs-split{grid-template-columns:1fr}}
.cs-mat{display:block;text-decoration:none;color:var(--carbon);background:var(--blanco);border-radius:var(--radio);overflow:hidden;box-shadow:var(--sombra)}
.cs-mat__sw{aspect-ratio:4/3;background-size:cover;background-position:center}
.cs-mat strong{display:block;padding:10px 12px;font-size:.9rem}
.sw-papeles{background-image:linear-gradient(135deg,#efe6d9,#d9c9b3)}
.sw-guaflex{background-image:repeating-linear-gradient(45deg,#2a2725 0 3px,#35302d 3px 6px)}
.sw-termo{background-image:linear-gradient(135deg,#6a5236,#8a6c45)}
.sw-relieve{background-image:radial-gradient(circle at 30% 30%,#fff 0,#ece3d6 60%,#e0d4c3 100%)}
.sw-cintas{background-image:linear-gradient(135deg,#7A232B,#9b3a43)}
.sw-carton{background-image:repeating-linear-gradient(0deg,#b99a75 0 6px,#a6865f 6px 8px)}

/* Sectores */
.cs-sectores{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);gap:16px;text-align:center}
.cs-sectores svg{width:38px;height:38px;stroke:var(--burdeos);fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;margin:0 auto 8px}
.cs-sectores li{font-size:.92rem;line-height:1.3}
@media(max-width:900px){.cs-sectores{grid-template-columns:repeat(3,1fr)}}

/* Historia */
.cs-hist{display:grid;grid-template-columns:1fr 1fr;background:var(--arena)}
.cs-hist__img{min-height:320px;background:linear-gradient(135deg,#4a3a30,#8a7358);background-size:cover;background-position:center}
.cs-hist__txt{padding:clamp(32px,5vw,64px);align-self:center;max-width:620px}
@media(max-width:860px){.cs-hist{grid-template-columns:1fr}}

/* Guías + CTA */
.cs-guias{display:grid;grid-template-columns:2.2fr 1fr;gap:26px;align-items:stretch}
@media(max-width:1000px){.cs-guias{grid-template-columns:1fr}}
.cs-cta{background:var(--burdeos);color:var(--marfil);border-radius:var(--radio);margin:2.2em 0}
.cs-cta__in{padding:clamp(26px,4vw,40px)}
.cs-cta h2{color:var(--marfil);font-size:1.55rem}
.cs-cta p{color:var(--arena)}
.cs-cta__btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:1.2em}
.cs-cta--home{margin:0;height:100%}

/* Página interior */
.cs-pagehead{background:var(--arena);padding:clamp(30px,5vw,56px) 0 clamp(26px,4vw,44px);border-bottom:1px solid #d9ccbb}
.cs-pagehead h1{margin:0;max-width:20em}
.cs-pagehead__meta{margin-top:.8em;color:var(--gris);font-size:.92rem}
.cs-crumbs{font-size:.86rem;margin-bottom:14px;color:var(--gris)}
.cs-crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.cs-crumbs li+li::before{content:"/";margin-right:6px;color:var(--kraft)}
.cs-crumbs a{color:var(--gris)}
.cs-prose{max-width:760px;margin:0 auto;padding:clamp(34px,5vw,60px) 20px}
.cs-prose--wide{max-width:var(--max)}
.cs-prose h2{margin-top:1.8em}
.cs-prose h2:first-child{margin-top:0}
.cs-prose h3{margin-top:1.5em}
.cs-prose ul,.cs-prose ol{padding-left:1.3em;margin:0 0 1.2em}
.cs-prose li{margin-bottom:.4em}
.cs-prose img{border-radius:var(--radio);margin:1.5em 0}
.cs-prose table{width:100%;border-collapse:collapse;font-size:.95rem;margin:1.5em 0;display:block;overflow-x:auto}
.cs-prose th,.cs-prose td{border:1px solid var(--arena);padding:10px 12px;text-align:left}
.cs-prose th{background:var(--arena)}
.cs-home-prose{background:var(--blanco);border-top:1px solid var(--arena)}

/* FAQ */
.cs-faq{margin:2.2em 0}
.cs-faq details{background:var(--blanco);border:1px solid var(--arena);border-radius:var(--radio);margin-bottom:10px}
.cs-faq summary{cursor:pointer;padding:16px 48px 16px 18px;font-weight:600;list-style:none;position:relative;min-height:44px}
.cs-faq summary::-webkit-details-marker{display:none}
.cs-faq summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--burdeos);line-height:1}
.cs-faq details[open] summary::after{content:"–"}
.cs-faq__a{padding:0 18px 6px}

/* Listados */
.cs-list{padding:clamp(34px,5vw,60px) 0}
.cs-pagination{margin-top:30px;display:flex;gap:10px;flex-wrap:wrap}
.cs-pagination .page-numbers{padding:8px 14px;border:1px solid var(--arena);border-radius:var(--radio);text-decoration:none;background:var(--blanco)}
.cs-pagination .current{background:var(--burdeos);color:var(--marfil);border-color:var(--burdeos)}

/* Formulario */
.cs-contact{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;padding:clamp(34px,5vw,60px) 0}
@media(max-width:900px){.cs-contact{grid-template-columns:1fr}}
.cs-form{background:var(--blanco);border:1px solid var(--arena);border-radius:var(--radio);padding:clamp(20px,3vw,32px)}
.cs-form__row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:600px){.cs-form__row{grid-template-columns:1fr}}
.cs-form label{display:block;font-weight:600;font-size:.92rem;margin-bottom:14px}
.cs-form input[type=text],.cs-form input[type=email],.cs-form input[type=tel],.cs-form textarea,.cs-form input[type=file]{display:block;width:100%;margin-top:6px;padding:12px 14px;min-height:46px;border:1px solid #cdbfae;border-radius:var(--radio);background:var(--marfil);font:inherit;color:var(--carbon)}
.cs-form textarea{min-height:140px}
.cs-form .cs-check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.9rem}
.cs-form .cs-check input{margin-top:5px;width:20px;height:20px;flex:0 0 20px}
.cs-hp{position:absolute;left:-9999px;opacity:0}
.cs-aviso{padding:14px 18px;border-radius:var(--radio);margin-bottom:18px;font-weight:600}
.cs-aviso--ok{background:#e8f1e6;color:#25521f}
.cs-aviso--ko{background:#f7e3e3;color:#7a1f1f}
.cs-datos{background:var(--arena);border-radius:var(--radio);padding:24px;align-self:start}
.cs-datos h2{font-size:1.3rem}
.cs-datos p{margin-bottom:.8em}

/* Pie */
.cs-footer{background:var(--carbon);color:var(--arena);padding:44px 0 26px}
.cs-footer a{color:var(--arena)}
.cs-footer a:hover{color:var(--blanco)}
.cs-footer__grid{display:grid;grid-template-columns:1.2fr 1.4fr 1fr;gap:30px}
@media(max-width:860px){.cs-footer__grid{grid-template-columns:1fr}}
.cs-footer .cs-logo{align-items:flex-start;color:var(--arena)}
.cs-footer .cs-logo__since{text-align:left}
.cs-footer h2{font:600 .78rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--kraft);margin-bottom:14px}
.cs-footer ul{list-style:none;margin:0;padding:0}
.cs-footer li{margin-bottom:6px}
.cs-footer__legal{margin-top:30px;padding-top:18px;border-top:1px solid #4a423c;font-size:.85rem;display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}
.cs-footer__legal ul{display:flex;gap:16px;flex-wrap:wrap}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}