/* ChapinIA — sistema de diseño compartido (landings por sector + diagnóstico) */
:root{
  --paper:#f4f0e6; --paper-2:#ece7d9; --card:#faf8f1;
  --ink:#16150f; --ink-2:#36342a; --muted:#6c6757;
  --line:rgba(22,21,15,.14); --line-soft:rgba(22,21,15,.08);
  --jade:#0f5d43; --jade-700:#0a4231; --jade-300:#3f9a7b; --amber:#d99322; --red:#d6372e;
  --white:#fdfcf8;
  --maxw:1180px; --gutter:clamp(16px,5vw,64px); --radius:18px; --radius-sm:12px;
  --fs-display:clamp(2.4rem,6vw,4.6rem); --fs-h2:clamp(1.95rem,4.3vw,3.1rem);
  --fs-h3:1.28rem; --fs-body:1.06rem; --fs-kicker:.78rem;
  --ff-display:"Bricolage Grotesque",system-ui,sans-serif;
  --ff-body:"Hanken Grotesk",system-ui,sans-serif;
  --ff-mono:"JetBrains Mono",ui-monospace,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--ff-body);font-size:var(--fs-body);line-height:1.65;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
::selection{background:var(--jade);color:var(--white)}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.kicker{font-family:var(--ff-mono);font-size:var(--fs-kicker);font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--jade);display:inline-flex;align-items:center;gap:.6em}
.kicker::before{content:"";width:22px;height:1px;background:currentColor;display:inline-block}
h1,h2,h3{font-family:var(--ff-display);font-weight:700;line-height:1.05;letter-spacing:-.02em}
.btn{font-family:var(--ff-body);font-weight:600;font-size:.98rem;display:inline-flex;align-items:center;gap:.55em;cursor:pointer;padding:.92em 1.5em;border-radius:100px;border:1px solid var(--ink);transition:transform .35s var(--ease),background .35s var(--ease),color .35s var(--ease)}
.btn--primary{background:var(--ink);color:var(--paper)}
.btn--primary:hover{background:var(--jade);border-color:var(--jade);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn--wa{background:var(--jade);border-color:var(--jade);color:var(--white)}
.btn--wa:hover{background:var(--jade-700);border-color:var(--jade-700);transform:translateY(-2px)}
.btn .arw{transition:transform .35s var(--ease)}
.btn:hover .arw{transform:translate(3px,-3px)}

/* NAV */
header.nav{position:sticky;top:0;z-index:100;transition:background .4s var(--ease),border-color .4s var(--ease)}
header.nav.scrolled{background:rgba(244,240,230,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-soft)}
.nav__row{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:inline-flex;align-items:center}
.logo-img{height:44px;width:auto;display:block;transition:transform .4s var(--ease)}
.logo:hover .logo-img{transform:scale(1.03)}
.nav__links{display:flex;align-items:center;gap:1.35rem}
.nav__links a.lnk{font-size:.95rem;font-weight:500;color:var(--ink-2);position:relative}
.nav__links a.lnk::after{content:"";position:absolute;left:0;bottom:-5px;width:0;height:1.5px;background:var(--jade);transition:width .3s var(--ease)}
.nav__links a.lnk:hover{color:var(--ink)}
.nav__links a.lnk:hover::after{width:100%}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav__toggle span{width:24px;height:2px;background:var(--ink);transition:.3s var(--ease)}
@media (max-width:980px){
  .nav__links{position:fixed;inset:74px 0 auto 0;flex-direction:column;align-items:flex-start;gap:0;background:var(--paper);border-bottom:1px solid var(--line);padding:var(--gutter);transform:translateY(-120%);transition:transform .45s var(--ease)}
  .nav__links.open{transform:translateY(0)}
  .nav__links a.lnk{width:100%;padding:14px 0;border-bottom:1px solid var(--line-soft);font-size:1.1rem}
  .nav__links .btn{margin-top:14px;width:100%;justify-content:center}
  .nav__toggle{display:flex}
  .nav__toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav__toggle.open span:nth-child(2){opacity:0}
  .nav__toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

/* HERO */
.hero{position:relative;padding:clamp(44px,8vw,96px) 0 clamp(36px,6vw,70px);overflow:hidden}
.hero__blob{position:absolute;z-index:0;border-radius:50%;filter:blur(90px);opacity:.5}
.hero__blob.a{width:460px;height:460px;background:radial-gradient(circle,#2f8f6d,transparent 70%);top:-120px;right:-80px}
.hero__blob.b{width:360px;height:360px;background:radial-gradient(circle,#e8b24a,transparent 70%);bottom:-140px;left:-60px;opacity:.26}
.hero .wrap{position:relative;z-index:1}
.hero h1{font-size:var(--fs-display);max-width:18ch;margin:1.1rem 0 0}
.hero h1 .hl{color:var(--jade)}
.hero__sub{font-size:clamp(1.1rem,1.8vw,1.35rem);color:var(--ink-2);max-width:52ch;margin-top:1.4rem;line-height:1.5;font-weight:500}
.hero__cta{display:flex;flex-wrap:wrap;gap:.85rem;margin-top:2.1rem}
.hero__trust{display:flex;flex-wrap:wrap;align-items:center;gap:1.4rem 2.2rem;margin-top:2.6rem;padding-top:1.6rem;border-top:1px solid var(--line-soft)}
.hero__trust .t b{font-family:var(--ff-display);font-size:1.6rem;font-weight:700;letter-spacing:-.02em;display:block}
.hero__trust .t span{font-size:.82rem;color:var(--muted);font-weight:500}

section{padding:clamp(54px,8vw,100px) 0}
.sec-head{max-width:48ch}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-head h2{font-size:var(--fs-h2);margin:1rem 0 0}
.sec-head p{color:var(--ink-2);margin-top:1.05rem;font-size:1.08rem}
.sec-head.center .kicker{justify-content:center}

/* PROBLEMA (fondo oscuro) */
.problem{background:var(--ink);color:var(--paper)}
.problem .kicker{color:var(--amber)}
.problem h2{font-size:var(--fs-h2);max-width:22ch;margin-top:1rem}
.problem h2 em{font-style:normal;color:var(--jade-300)}
.problem__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:3rem}
.problem__item{border-top:1px solid rgba(244,240,230,.18);padding-top:1.3rem}
.problem__item b{font-family:var(--ff-mono);font-size:.8rem;color:var(--jade-300);letter-spacing:.1em}
.problem__item p{margin-top:.7rem;color:#d8d3c4;font-size:1rem;line-height:1.55}
@media(max-width:760px){.problem__grid{grid-template-columns:1fr}}

/* SERVICIOS / SOLUCIÓN (cards) */
.serv__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem;margin-top:3rem}
.card{background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius);padding:1.7rem;display:flex;flex-direction:column;min-height:200px;position:relative;overflow:hidden;transition:transform .5s var(--ease),border-color .5s var(--ease),box-shadow .5s var(--ease)}
.card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:0 18px 40px -24px rgba(22,21,15,.3)}
.card .num{font-family:var(--ff-mono);font-size:.78rem;color:var(--muted);letter-spacing:.1em}
.card .ic{margin:.2rem 0 1rem;color:var(--jade);font-size:1.6rem}
.card h3{font-size:var(--fs-h3);letter-spacing:-.01em}
.card p{color:var(--ink-2);font-size:.97rem;margin-top:.6rem;line-height:1.55}
.card.feat{background:var(--jade);color:var(--white);border-color:var(--jade)}
.card.feat .num,.card.feat p{color:rgba(253,252,248,.85)}
.card.feat .ic{color:var(--amber)}
@media(max-width:860px){.serv__grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.serv__grid{grid-template-columns:1fr}}

/* COMPARATIVA */
.compare{background:var(--paper-2)}
.cmp{margin-top:3rem;display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.cmp__col{border-radius:var(--radius);padding:2rem;border:1px solid var(--line-soft)}
.cmp__col.bad{background:var(--card)}
.cmp__col.good{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.cmp__col h3{font-size:1.35rem;margin-bottom:1.4rem;display:flex;align-items:center;gap:.6rem}
.cmp__col.bad h3{color:var(--muted)}
.cmp__col ul{list-style:none;display:flex;flex-direction:column;gap:.95rem}
.cmp__col li{display:flex;gap:.7rem;align-items:flex-start;font-size:.98rem;line-height:1.45}
.cmp__col.bad li{color:var(--ink-2)}
.cmp__col.good li{color:#e4dfd1}
.cmp .mk{flex:none;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;margin-top:1px;font-size:.7rem;font-weight:700}
.cmp .bad .mk{background:rgba(214,55,46,.14);color:var(--red)}
.cmp .good .mk{background:var(--jade);color:var(--white)}
@media(max-width:760px){.cmp{grid-template-columns:1fr}}

/* RESULTADOS */
.results{background:var(--jade);color:var(--white);text-align:center}
.results h2{font-size:var(--fs-h2);max-width:24ch;margin:1rem auto 0}
.results .kicker{color:var(--amber);justify-content:center}
.results__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin-top:3rem}
.results__grid .r b{font-family:var(--ff-display);font-size:clamp(2.2rem,5vw,3.2rem);font-weight:800;letter-spacing:-.03em;line-height:1}
.results__grid .r span{display:block;margin-top:.6rem;font-size:.92rem;color:rgba(253,252,248,.82)}
@media(max-width:760px){.results__grid{grid-template-columns:1fr 1fr;gap:2rem}}

/* FAQ */
.faq__grid{margin-top:2.2rem;border-top:1px solid var(--line);max-width:860px}
details{border-bottom:1px solid var(--line)}
summary{list-style:none;cursor:pointer;padding:1.3rem 0;display:flex;justify-content:space-between;align-items:center;gap:1rem;font-family:var(--ff-display);font-weight:600;font-size:1.1rem;letter-spacing:-.01em}
summary::-webkit-details-marker{display:none}
summary .pm{flex:none;width:24px;height:24px;position:relative}
summary .pm::before,summary .pm::after{content:"";position:absolute;background:var(--jade);top:50%;left:50%;transform:translate(-50%,-50%)}
summary .pm::before{width:14px;height:2px}
summary .pm::after{width:2px;height:14px;transition:transform .3s var(--ease)}
details[open] summary .pm::after{transform:translate(-50%,-50%) scaleY(0)}
details p{padding:0 0 1.4rem;color:var(--ink-2);max-width:68ch;line-height:1.6}

/* CTA + FORM */
.cta{background:var(--ink);color:var(--paper);position:relative;overflow:hidden}
.cta__blob{position:absolute;width:520px;height:520px;border-radius:50%;filter:blur(110px);background:radial-gradient(circle,#19795a,transparent 70%);opacity:.5;top:-180px;left:0}
.cta .wrap{position:relative;z-index:1}
.cta__grid{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.cta h2{font-size:clamp(2rem,4.6vw,3.4rem);max-width:16ch}
.cta__lead{color:#cfcabb;max-width:44ch;margin-top:1.2rem;font-size:1.06rem}
.cta__direct{margin-top:1.8rem;display:flex;flex-direction:column;gap:.9rem}
.cta__direct a{display:inline-flex;align-items:center;gap:.7rem;color:var(--paper);font-weight:500}
.cta__direct a .ic{width:38px;height:38px;border-radius:10px;background:rgba(244,240,230,.08);display:grid;place-items:center;color:var(--jade-300);transition:.3s}
.cta__direct a:hover .ic{background:var(--jade);color:#fff}
.cta__direct a span small{display:block;font-size:.78rem;color:#9d988a;font-weight:400}
.form{background:rgba(244,240,230,.04);border:1px solid rgba(244,240,230,.14);border-radius:var(--radius);padding:clamp(1.6rem,3vw,2.2rem)}
.form label{display:block;font-size:.82rem;font-weight:600;color:#cfcabb;margin:0 0 .4rem}
.form input,.form textarea,.form select{width:100%;background:rgba(244,240,230,.06);border:1px solid rgba(244,240,230,.16);border-radius:10px;padding:.8rem .9rem;color:var(--paper);font-family:var(--ff-body);font-size:.96rem;margin-bottom:1rem;transition:border-color .3s}
.form select option{color:#16150f}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--jade-300)}
.form textarea{resize:vertical;min-height:92px}
.form .btn{width:100%;justify-content:center}
.form__ok{display:none;background:rgba(63,154,123,.15);border:1px solid var(--jade-300);border-radius:10px;padding:1rem;color:#dff0e8;font-size:.95rem;margin-bottom:1rem}
@media(max-width:860px){.cta__grid{grid-template-columns:1fr}}

/* FOOTER */
footer{background:var(--paper);padding:clamp(44px,6vw,64px) 0 32px}
.foot__top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:2.5rem;padding-bottom:2.3rem;border-bottom:1px solid var(--line)}
.foot__brand{max-width:34ch}
.foot__brand .logo{margin-bottom:1rem}
.foot__brand p{color:var(--muted);font-size:.95rem}
.foot__cols{display:flex;gap:clamp(2rem,6vw,5rem);flex-wrap:wrap}
.foot__col h4{font-family:var(--ff-mono);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:1rem;font-weight:500}
.foot__col a{display:block;padding:.35rem 0;font-size:.95rem;color:var(--ink-2);transition:color .25s,padding-left .25s}
.foot__col a:hover{color:var(--jade);padding-left:4px}
.foot__bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;padding-top:1.7rem;font-size:.85rem;color:var(--muted)}

.wa-float{position:fixed;right:20px;bottom:20px;z-index:200;width:56px;height:56px;border-radius:50%;background:var(--jade);color:var(--white);display:grid;place-items:center;box-shadow:0 12px 30px -8px rgba(15,93,67,.7);transition:transform .35s var(--ease),background .3s}
.wa-float:hover{transform:scale(1.08);background:var(--jade-700)}

/* utilidades landing */
.lead-badge{display:inline-flex;align-items:center;gap:.5rem;background:var(--mint,#bfe3d5);color:var(--jade-700);font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;padding:.45rem .8rem;border-radius:100px;margin-bottom:.2rem}
.demo-list{list-style:none;margin-top:1rem;display:flex;flex-direction:column;gap:.8rem}
.demo-list li{display:flex;gap:.7rem;align-items:flex-start;font-size:1rem;color:var(--ink-2)}
.demo-list .ck{flex:none;width:24px;height:24px;border-radius:50%;background:var(--jade);color:#fff;display:grid;place-items:center;font-size:.72rem;margin-top:2px}

/* ===== PLANES / PRECIOS (compartido, usado en catalogo.html) ===== */
.pricing__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:3.2rem;align-items:stretch}
.plan{background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius);padding:2rem;display:flex;flex-direction:column;transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.plan:hover{transform:translateY(-4px);box-shadow:0 18px 40px -24px rgba(22,21,15,.3)}
.plan.pop{background:var(--ink);color:var(--paper);border-color:var(--ink);position:relative}
.plan.pop .plan__feat li{color:#e4dfd1}
.plan__tag{font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--jade);margin-bottom:.4rem}
.plan.pop .plan__tag{color:var(--amber)}
.plan__badge{position:absolute;top:1.4rem;right:1.4rem;background:var(--amber);color:var(--ink);font-size:.7rem;font-weight:700;padding:.3rem .7rem;border-radius:100px;font-family:var(--ff-mono)}
.plan h3{font-size:1.5rem}
.plan__price{margin:1rem 0 .3rem;font-family:var(--ff-display);font-weight:800;font-size:2.1rem;letter-spacing:-.02em}
.plan__price small{font-family:var(--ff-body);font-weight:500;font-size:.9rem;color:var(--muted)}
.plan.pop .plan__price small{color:#b7b2a3}
.plan__desc{font-size:.95rem;color:var(--ink-2);margin-bottom:1.4rem}
.plan.pop .plan__desc{color:#c9c4b5}
.plan__feat{list-style:none;display:flex;flex-direction:column;gap:.7rem;margin-bottom:1.8rem;flex:1}
.plan__feat li{display:flex;gap:.6rem;font-size:.94rem;line-height:1.4;color:var(--ink-2)}
.plan__feat .ck{flex:none;color:var(--jade);margin-top:2px}
.plan.pop .plan__feat .ck{color:var(--jade-300)}
.plan .btn{justify-content:center;width:100%}
.plan.pop .btn--primary{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.plan.pop .btn--primary:hover{background:var(--jade);color:#fff;border-color:var(--jade)}
.price-note{text-align:center;margin-top:1.6rem;font-size:.86rem;color:var(--muted)}
@media(max-width:860px){.pricing__grid{grid-template-columns:1fr;max-width:460px;margin-inline:auto}}