/* ============================================================
   TERVIA · Landing · styles.css
   Tokens de marca + layout responsive + animaciones
   ============================================================ */
:root{
  --navy:#162944; --navy-d:#0e1d2f; --green:#1E3A2F; --steel:#3D5A6C;
  --slate:#8E9BAA; --sand:#F0EDE8; --copper:#A0693A; --copper-h:#8a5830;
  --line:rgba(142,155,170,.18);
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'DM Sans',system-ui,-apple-system,sans-serif;
  background:var(--navy-d); color:var(--sand);
  line-height:1.65; -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,.display{font-family:'Barlow Semi Condensed',sans-serif;font-weight:700;line-height:1.04;letter-spacing:-.01em}
.eyebrow{font-family:'Barlow Semi Condensed',sans-serif;font-weight:600;font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;color:var(--copper)}
.eyebrow::before{content:"— ";opacity:.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(1.2rem,4vw,2.5rem)}
.serif{font-family:'Playfair Display',serif;font-style:italic;font-weight:400}

/* NAV */
header{position:sticky;top:0;z-index:50;background:rgba(14,29,47,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:.7rem}
.brand .mark{width:32px;height:32px;flex-shrink:0}
.brand-tx{font-family:'Barlow Semi Condensed',sans-serif;font-weight:700;font-size:1.15rem;letter-spacing:.18em}
.brand-tx small{display:block;font-size:.5rem;letter-spacing:.24em;color:var(--slate);font-weight:500;margin-top:1px}
.nav-cta{font-family:'Barlow Semi Condensed',sans-serif;font-weight:600;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;background:var(--copper);color:var(--sand);padding:.6rem 1.2rem;transition:background .2s}
.nav-cta:hover{background:var(--copper-h)}
@media(max-width:560px){.nav-cta{padding:.55rem .9rem;font-size:.72rem}}

/* HERO */
.hero{position:relative;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:right center}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--navy-d) 20%,rgba(14,29,47,.85) 42%,rgba(14,29,47,.25) 100%)}
.hero-inner{position:relative;z-index:1;padding:clamp(3.5rem,9vw,7rem) 0 clamp(3rem,7vw,5.5rem)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem);align-items:center}
@media(max-width:880px){.hero-grid{grid-template-columns:1fr;gap:2.5rem}}
.hero h1{font-size:clamp(2.4rem,6vw,4.2rem);margin:1.2rem 0}
.hero h1 .serif{color:var(--copper);font-weight:400}
.hero p.lead{font-size:clamp(1.05rem,2vw,1.25rem);color:var(--slate);max-width:34ch;margin-bottom:2rem}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap;align-items:center}
.btn-primary{display:inline-flex;align-items:center;gap:.6rem;font-family:'Barlow Semi Condensed',sans-serif;font-weight:600;font-size:.95rem;letter-spacing:.06em;text-transform:uppercase;background:var(--copper);color:var(--sand);padding:1rem 1.8rem;transition:transform .15s,background .2s}
.btn-primary:hover{background:var(--copper-h);transform:translateY(-2px)}
.btn-ghost{font-family:'Barlow Semi Condensed',sans-serif;font-weight:600;font-size:.9rem;letter-spacing:.06em;text-transform:uppercase;color:var(--slate);padding:1rem 0;border-bottom:1px solid var(--line);transition:color .2s}
.btn-ghost:hover{color:var(--sand)}

/* Comparación de pozos */
.wells{position:relative;background:rgba(22,41,68,.72);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);border:1px solid var(--line);padding:2rem 1.8rem}
.wells-title{font-family:'Barlow Semi Condensed',sans-serif;font-weight:600;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--slate);margin-bottom:1.4rem}
.well{display:flex;align-items:center;gap:1rem;padding:1rem 0;border-top:1px solid var(--line)}
.well:first-of-type{border-top:none}
.well-bar{width:6px;align-self:stretch;min-height:54px;flex-shrink:0}
.well-bar.dry{background:linear-gradient(var(--copper),transparent)}
.well-bar.wet{background:linear-gradient(var(--steel),var(--green))}
.well-tx h3{font-family:'Barlow Semi Condensed',sans-serif;font-weight:700;font-size:1.05rem;color:var(--sand)}
.well-tx span{font-size:.86rem;color:var(--slate)}
.well-cost{margin-left:auto;text-align:right;font-family:'Barlow Semi Condensed',sans-serif;font-weight:700;color:var(--sand);font-size:1.1rem;white-space:nowrap}
.wells-note{margin-top:1.4rem;padding-top:1.2rem;border-top:1px solid var(--line);font-size:.9rem;color:var(--slate)}
.wells-note b{color:var(--sand)}

/* FRANJA CONFIANZA */
.trust{background:var(--navy);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:2.2rem 0}
.trust-in{display:flex;align-items:center;gap:2rem;flex-wrap:wrap;justify-content:space-between}
.trust-tx{max-width:62ch;font-size:1.02rem;color:var(--slate)}
.trust-tx b{color:var(--sand)}
.trust-logos{display:flex;gap:1.6rem;flex-wrap:wrap;font-family:'Barlow Semi Condensed',sans-serif;font-weight:600;font-size:.8rem;letter-spacing:.12em;color:var(--slate);text-transform:uppercase}
.trust-logos span{opacity:.7}

/* SECCIONES */
section{padding:clamp(3.5rem,8vw,6rem) 0}
.sec-head{max-width:62ch;margin-bottom:3rem}
.sec-head h2{font-size:clamp(1.8rem,4vw,2.8rem);margin:.8rem 0}
.sec-head p{color:var(--slate);font-size:1.08rem}
.light{background:var(--sand);color:var(--navy)}
.light .eyebrow{color:var(--copper)}
.light .sec-head p{color:var(--steel)}
.light h2{color:var(--navy)}

/* PROCESO */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
@media(max-width:780px){.steps{grid-template-columns:1fr}}
.step{background:#fff;border:1px solid #e2e0d9;padding:2rem 1.7rem}
.step-n{font-family:'Barlow Semi Condensed',sans-serif;font-weight:700;font-size:2.4rem;color:var(--copper);line-height:1;opacity:.85}
.step h3{font-size:1.25rem;margin:.8rem 0 .5rem;color:var(--navy)}
.step p{color:var(--steel);font-size:.96rem}

/* QUÉ ANALIZA */
.analyze{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,3.5rem);align-items:center}
@media(max-width:880px){.analyze{grid-template-columns:1fr;gap:2.5rem}}
.analyze-img{border:1px solid var(--line)}
.factors{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
@media(max-width:460px){.factors{grid-template-columns:1fr}}
.factor{background:var(--navy-d);padding:1.4rem 1.3rem}
.factor h3{font-family:'Barlow Semi Condensed',sans-serif;font-weight:600;font-size:1.02rem;color:var(--sand);margin-bottom:.35rem}
.factor p{font-size:.86rem;color:var(--slate);line-height:1.5}

/* QUÉ RECIBE */
.receive{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
@media(max-width:820px){.receive{grid-template-columns:1fr;gap:2.5rem}}
.receive-img{border:1px solid #d8d5cd;box-shadow:0 20px 50px rgba(14,29,47,.15)}
.receive-list{list-style:none;margin-top:1.5rem}
.receive-list li{padding:1rem 0 1rem 2.2rem;position:relative;border-top:1px solid rgba(22,41,68,.12);color:var(--steel)}
.receive-list li:first-child{border-top:none}
.receive-list li b{display:block;font-family:'Barlow Semi Condensed',sans-serif;font-weight:600;font-size:1.05rem;color:var(--navy);margin-bottom:.2rem}
.receive-list li::before{content:"";position:absolute;left:0;top:1.35rem;width:9px;height:9px;background:var(--copper)}

/* HONESTIDAD */
.honesty{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-top:1rem}
@media(max-width:720px){.honesty{grid-template-columns:1fr}}
.hon-col{padding:2rem 1.9rem;border:1px solid var(--line)}
.hon-col.is{background:var(--navy)}
.hon-col h3{font-family:'Barlow Semi Condensed',sans-serif;font-weight:700;font-size:1.2rem;margin-bottom:1.2rem}
.hon-col.is h3{color:#9DB6A8}
.hon-col.isnt h3{color:var(--copper)}
.hon-col ul{list-style:none}
.hon-col li{padding:.7rem 0;border-top:1px solid var(--line);color:var(--slate);font-size:.96rem;line-height:1.5}
.hon-col li:first-of-type{border-top:none}

/* PARA QUIÉN */
.audiences{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
@media(max-width:900px){.audiences{grid-template-columns:1fr}}
.aud{border:1px solid #d8d5cd;padding:2.2rem 2rem}
.aud .eyebrow{display:block;margin-bottom:1rem}
.aud h3{font-size:1.5rem;color:var(--navy);margin-bottom:.7rem}
.aud p{color:var(--steel);margin-bottom:1.2rem}
.aud ul{list-style:none}
.aud li{padding:.5rem 0 .5rem 1.5rem;position:relative;color:var(--steel);font-size:.95rem;border-top:1px solid #d8d5cd}
.aud li::before{content:"→";position:absolute;left:0;color:var(--copper)}

/* CTA FINAL */
.final{background:var(--green);text-align:center}
.final h2{font-size:clamp(2rem,5vw,3.2rem);color:var(--sand);max-width:20ch;margin:0 auto 1.2rem}
.final p{color:#a9c2b4;max-width:48ch;margin:0 auto 2.4rem;font-size:1.1rem}

/* WHATSAPP FLOTANTE */
.wa-float{position:fixed;bottom:24px;right:24px;z-index:60;display:flex;align-items:center;gap:.6rem;background:#25D366;color:#0e1d2f;font-family:'Barlow Semi Condensed',sans-serif;font-weight:700;font-size:.9rem;letter-spacing:.04em;padding:.85rem 1.3rem;border-radius:50px;box-shadow:0 8px 24px rgba(0,0,0,.3);transition:transform .15s}
.wa-float:hover{transform:scale(1.05)}
.wa-float svg{width:22px;height:22px}
@media(max-width:560px){.wa-float span{display:none}.wa-float{padding:1rem;border-radius:50%}}

/* FOOTER */
footer{background:var(--navy-d);border-top:1px solid var(--line);padding:3rem 0 2rem}
.foot-grid{display:flex;justify-content:space-between;align-items:flex-start;gap:2rem;flex-wrap:wrap;margin-bottom:2rem}
.foot-tag{font-family:'Barlow Semi Condensed',sans-serif;font-weight:600;letter-spacing:.1em;color:var(--slate);font-size:.85rem}
.foot-links{display:flex;gap:1.5rem;flex-wrap:wrap;font-size:.9rem;color:var(--slate)}
.foot-links a:hover{color:var(--sand)}
.foot-legal{border-top:1px solid var(--line);padding-top:1.5rem;font-size:.8rem;color:var(--slate);max-width:75ch}

/* ANIMACIONES */
@media(prefers-reduced-motion:no-preference){
  .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.6,.2,1),transform .7s cubic-bezier(.2,.6,.2,1)}
  .reveal.in{opacity:1;transform:none}
  .reveal.d1{transition-delay:.08s}
  .reveal.d2{transition-delay:.16s}
  .reveal.d3{transition-delay:.24s}
}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px}