/* Ingeniera del Cambio: shared styles for the inner pages (IMPACTO / IMPACTA / FreeProNeurs / Sobre mi).
   Dark minimalist system matching index.html: base #16171b, bands #1d1e23 / #24262c,
   headings Archivo 800-900, accents Fraunces italic, soft blue #9db4d6, buttons #2e6fd0. */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{background:#16171b;color:rgba(228,231,238,.8);font-family:'Poppins',sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
::selection{background:#2e6fd0;color:#fff;}

h1,h2,h3{font-family:'Archivo',sans-serif;color:#eef0f4;line-height:1.05;text-transform:uppercase;letter-spacing:-.01em;}
h1{font-weight:900;font-size:clamp(2.6rem,6.5vw,5rem);}
h2{font-weight:800;font-size:clamp(1.7rem,3.6vw,2.8rem);margin-bottom:1.2rem;}
h3{font-weight:800;font-size:clamp(1.05rem,1.7vw,1.3rem);letter-spacing:.02em;}
em,.accent-serif{font-family:'Fraunces',Georgia,serif;font-style:italic;font-weight:400;text-transform:none;letter-spacing:0;}
strong{color:#eef0f4;font-weight:600;}

.kicker{font-family:'Archivo',sans-serif;font-weight:600;font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;color:#9db4d6;margin-bottom:1.4rem;}
.lead{font-size:clamp(1.02rem,1.6vw,1.25rem);color:rgba(228,231,238,.86);max-width:46rem;}
.muted{color:rgba(228,231,238,.62);}
.soft-blue{color:#9db4d6;}

.container{width:min(1140px,92%);margin:0 auto;}
.narrow{max-width:46rem;}

/* ---------- nav ---------- */
.pnav{position:fixed;inset:0 0 auto 0;z-index:50;background:rgba(22,23,27,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.06);}
.pnav-in{width:min(1240px,94%);margin:0 auto;display:flex;align-items:center;gap:2rem;height:76px;}
.pnav-logo{display:flex;align-items:center;gap:.6rem;font-family:'Archivo',sans-serif;font-weight:800;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;color:#eef0f4;}
.pnav-logo img{height:40px;width:auto;}
.pnav-links{display:flex;align-items:center;gap:1.7rem;margin-left:auto;}
.pnav-links a{font-family:'Archivo',sans-serif;font-weight:600;font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;color:rgba(228,231,238,.72);transition:color .25s;}
.pnav-links a:hover{color:#fff;}
.pnav-links a.on{color:#9db4d6;}
.pnav-cta{background:#2e6fd0;color:#fff!important;padding:.72em 1.5em;border-radius:4px;transition:background .25s;}
.pnav-cta:hover{background:#245cb3;color:#fff;}
.burger{display:none;margin-left:auto;background:none;border:0;cursor:pointer;padding:.5rem;}
.burger span{display:block;width:24px;height:2px;background:#eef0f4;margin:5px 0;transition:.3s;}

/* ---------- hero ---------- */
.phero{padding:170px 0 90px;background:#16171b;}
.phero .lead{margin-top:1.4rem;}
.cta-row{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2.2rem;}
.btn{display:inline-block;font-family:'Poppins',sans-serif;font-size:.8rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase;padding:1.05em 2.1em;border-radius:4px;transition:all .25s;}
.btn-solid{background:#2e6fd0;color:#fff;}
.btn-solid:hover{background:#245cb3;}
.btn-ghost{border:1px solid rgba(157,180,214,.5);color:#cfd9ea;}
.btn-ghost:hover{border-color:#9db4d6;color:#fff;}

/* ---------- sections ---------- */
.sec{padding:90px 0;}
.sec.band{background:#1d1e23;}
.sec.band2{background:#24262c;}
.sec-head{margin-bottom:2.6rem;max-width:52rem;}
.split{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start;}
.split .lead{margin-top:1rem;}

.plist{list-style:none;margin-top:1.4rem;}
.plist li{padding:.55rem 0 .55rem 1.7rem;position:relative;}
.plist li::before{content:"";position:absolute;left:0;top:1.15rem;width:.55rem;height:.55rem;border-radius:50%;background:#2e6fd0;}
.plist.check li::before{content:"";background:none;border-left:2px solid #9db4d6;border-bottom:2px solid #9db4d6;width:.7rem;height:.38rem;border-radius:0;transform:rotate(-45deg);top:1.05rem;}

.stack-p p{margin-bottom:1.1rem;}

/* repeated one-line statements ("No basta con...", "No enseñamos a...") */
.mantra{list-style:none;margin-top:1.2rem;}
.mantra li{font-family:'Archivo',sans-serif;font-weight:700;text-transform:uppercase;letter-spacing:.04em;font-size:clamp(1rem,1.9vw,1.45rem);color:#eef0f4;padding:.85rem 0;border-bottom:1px solid rgba(255,255,255,.08);}
.mantra li span{color:#9db4d6;}

/* quote band */
.quote-band{background:#1d1e23;padding:110px 0;text-align:center;}
.quote-band h2{font-size:clamp(1.9rem,4.2vw,3.4rem);max-width:60rem;margin:0 auto;}
.quote-band h2 em{color:#9db4d6;}
.quote-band .kicker{margin-bottom:1.8rem;}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.4rem;margin-top:2.4rem;}
.card{background:#24262c;border:1px solid rgba(255,255,255,.06);border-radius:8px;padding:2.2rem 1.9rem;display:flex;flex-direction:column;}
.card h3{margin-bottom:.8rem;}
.card .kicker{margin-bottom:.9rem;}
.card p{font-size:.95rem;}
.card .btn{margin-top:auto;align-self:flex-start;margin-top:1.6rem;}

/* 7 units grid */
.units{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.2rem;margin-top:2.4rem;}
.unit{background:#1d1e23;border:1px solid rgba(255,255,255,.06);border-radius:8px;padding:1.8rem 1.6rem;}
.unit .letter{font-family:'Fraunces',Georgia,serif;font-style:italic;font-size:2.4rem;color:#9db4d6;line-height:1;}
.unit h3{margin:.7rem 0 .35rem;}
.unit .q{font-family:'Fraunces',Georgia,serif;font-style:italic;color:rgba(228,231,238,.75);margin-bottom:.6rem;}
.unit p{font-size:.92rem;}

/* diagram (ecosystem stack) */
.diagram{max-width:34rem;margin:2.6rem auto 0;text-align:center;}
.dg{background:#24262c;border:1px solid rgba(157,180,214,.25);border-radius:8px;padding:1.05rem 1.4rem;font-family:'Archivo',sans-serif;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#eef0f4;font-size:.92rem;}
.dg small{display:block;font-family:'Poppins',sans-serif;font-weight:400;text-transform:none;letter-spacing:0;color:rgba(228,231,238,.6);font-size:.78rem;margin-top:.2rem;}
.dg.hi{border-color:#2e6fd0;background:#20242e;}
.dArrow{color:#9db4d6;font-size:1.2rem;line-height:2.2;}
.dg-pair{display:grid;grid-template-columns:1fr 1fr;gap:.9rem;}

/* timeline table */
.timeline{margin-top:2.4rem;border:1px solid rgba(255,255,255,.08);border-radius:8px;overflow:hidden;}
.trow{display:grid;grid-template-columns:170px 220px 1fr;border-bottom:1px solid rgba(255,255,255,.08);background:#1d1e23;}
.trow:nth-child(even){background:#191a1f;}
.trow:last-child{border-bottom:0;}
.trow > div{padding:1.2rem 1.4rem;}
.tweek{font-family:'Archivo',sans-serif;font-weight:700;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:#9db4d6;}
.tname{font-family:'Archivo',sans-serif;font-weight:800;text-transform:uppercase;color:#eef0f4;font-size:.95rem;}
.tdesc{font-size:.93rem;color:rgba(228,231,238,.78);}

/* about page */
.about-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:4rem;align-items:center;}
.about-hero img{border-radius:10px;}
.portrait-wrap{background:#24262c;border-radius:10px;padding:1.2rem;}

/* creo list */
.creo li{font-size:1.05rem;color:#eef0f4;font-family:'Fraunces',Georgia,serif;font-style:italic;text-transform:none;}

/* final CTA */
.final-cta{background:#1d1e23;text-align:center;padding:110px 0;}
.final-cta h2{max-width:52rem;margin:0 auto 1rem;}
.final-cta .lead{margin:0 auto;}
.final-cta .cta-row{justify-content:center;}

/* footer */
.pfoot{background:#111216;border-top:1px solid rgba(255,255,255,.06);padding:70px 0 40px;}
.pfoot-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:3rem;margin-bottom:2.6rem;}
.pfoot h3{margin-bottom:.7rem;}
.pfoot .tag{font-family:'Fraunces',Georgia,serif;font-style:italic;font-size:1.15rem;color:#cfd9ea;margin-bottom:.9rem;}
.pfoot p{font-size:.88rem;color:rgba(228,231,238,.6);margin-bottom:.9rem;}
.pfoot-links{display:flex;flex-direction:column;gap:.55rem;}
.pfoot-links a{font-family:'Archivo',sans-serif;font-weight:600;font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:rgba(228,231,238,.7);}
.pfoot-links a:hover{color:#9db4d6;}
.ack{font-size:.78rem!important;color:rgba(228,231,238,.45)!important;border-top:1px solid rgba(255,255,255,.06);padding-top:1.6rem;}
.legal{font-size:.72rem!important;color:rgba(228,231,238,.38)!important;}

/* reveal on scroll */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease;}
.rv.on{opacity:1;transform:none;}

/* ---------- images ---------- */
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:4rem;align-items:center;}
.h1-fit{font-size:clamp(2.1rem,4.6vw,3.7rem);}
.img-card{border-radius:10px;overflow:hidden;border:1px solid rgba(255,255,255,.08);background:#24262c;margin:0;}
.img-card img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) brightness(.92);}
.img-hero{aspect-ratio:4/4.2;}
.img-side{aspect-ratio:16/11;}
.split .img-side{height:100%;min-height:280px;}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .pnav-links{position:fixed;top:76px;left:0;right:0;background:#16171b;flex-direction:column;padding:2rem 6%;gap:1.4rem;align-items:flex-start;transform:translateY(-130%);transition:transform .35s ease;border-bottom:1px solid rgba(255,255,255,.08);}
  .pnav-links.open{transform:none;}
  .burger{display:block;}
  .split,.about-hero,.pfoot-grid,.hero-grid{grid-template-columns:1fr;gap:2.2rem;}
  .img-hero{aspect-ratio:16/10;}
  .trow{grid-template-columns:1fr;}
  .trow > div{padding:.8rem 1.2rem;}
  .trow .tweek{padding-bottom:0;}
  .trow .tname{padding-top:.2rem;padding-bottom:0;}
  .phero{padding:130px 0 70px;}
  .sec{padding:64px 0;}
}