/* ============================================================
   RENOPRO · INOXPRO — Sistema de diseño compartido
   Estética "Portal partido": oscuro, inmersivo, premium.
   ============================================================ */
:root{
  --ink:#16181d;          /* fondo base */
  --ink-2:#1b1e25;        /* superficie elevada */
  --ink-3:#21252d;        /* superficie / cards */
  --line:rgba(255,255,255,.12);
  --line-2:rgba(255,255,255,.07);
  --paper:#f3f1ec;        /* secciones claras */
  --paper-ink:#16181d;
  --tx:#f4f5f7;           /* texto principal sobre oscuro */
  --tx-mut:rgba(244,245,247,.66);
  --tx-dim:rgba(244,245,247,.42);
  --steel:#9aa3ad;
  --warm:#b89b7d;         /* acento RENOPRO */
  --cool:#8aa4bd;         /* acento INOXPRO */
  --accent:var(--warm);
  --maxw:1280px;
  --ease:cubic-bezier(.6,.01,.05,1);
}
[data-brand="inox"]{--accent:var(--cool)}

*{margin:0;padding:0;box-sizing:border-box}
a{color:inherit;text-decoration:none}
a:any-link{color:inherit;text-decoration:none}
html{scroll-behavior:smooth}
body{
  font-family:'Manrope',system-ui,-apple-system,sans-serif;
  background:var(--ink);color:var(--tx);
  -webkit-font-smoothing:antialiased;line-height:1.5;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
::selection{background:var(--accent);color:var(--ink)}

/* ---------- Tipografía ---------- */
.display,h1,h2,h3,.brandtype{font-family:'Archivo',sans-serif;letter-spacing:-.02em;line-height:1.0;font-weight:800}
.kicker{
  font-family:'Archivo',sans-serif;font-weight:600;font-size:12px;letter-spacing:.34em;
  text-transform:uppercase;color:var(--accent);display:inline-flex;align-items:center;gap:13px;
}
.kicker::before{content:"";width:26px;height:1px;background:var(--accent);opacity:.7}
.kicker.center{justify-content:center}
.eyebrow-num{font-family:'Archivo';font-weight:800;font-size:13px;letter-spacing:.1em;color:var(--accent)}
.lead{font-size:clamp(17px,1.4vw,20px);line-height:1.62;color:var(--tx-mut);font-weight:400}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(22px,5vw,64px)}
.section{padding:clamp(64px,9vw,128px) 0}
.section.tight{padding:clamp(44px,6vw,80px) 0}
.section.paper{background:var(--paper);color:var(--paper-ink)}
.section.paper .lead{color:#4a4d55}
.section.paper .kicker{color:#16181d}
.section.paper .kicker::before{background:var(--accent)}
.shead{max-width:62ch;margin-bottom:clamp(34px,4vw,56px)}
.shead h2{font-size:clamp(30px,4vw,54px);margin:20px 0 0;font-weight:800}
.shead .lead{margin-top:20px}

/* ---------- Nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .4s,backdrop-filter .4s,border-color .4s;
  border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(18,20,25,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 clamp(22px,5vw,64px);height:74px;
  display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-brand{display:flex;align-items:center;gap:13px;font-family:'Archivo';font-weight:800;
  font-size:18px;letter-spacing:.01em}
.nav-brand img{height:24px;width:auto}
.nav-brand .sfx{color:var(--tx-dim);font-weight:500;font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;padding-left:13px;margin-left:3px;border-left:1px solid var(--line)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{font-size:13.5px;font-weight:600;letter-spacing:.02em;color:var(--tx-mut);
  padding:9px 15px;border-radius:100px;transition:color .25s,background .25s}
.nav-links a:hover{color:var(--tx)}
.nav-links a.active{color:var(--tx)}
.nav-links a.active::after{content:"";display:block;height:2px;background:var(--accent);
  border-radius:2px;margin-top:5px}
.nav-cta{display:inline-flex;align-items:center;gap:9px;font-family:'Archivo';font-weight:700;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--tx);
  border:1px solid var(--line);padding:11px 18px;border-radius:100px;transition:border-color .3s,background .3s}
.nav-cta:hover{border-color:var(--accent);background:rgba(255,255,255,.03)}
.nav-cta svg{width:14px;height:14px}
.nav-toggle{display:none;background:none;border:0;color:var(--tx);cursor:pointer;padding:8px}
.nav-toggle svg{width:26px;height:26px}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;gap:14px;font-family:'Archivo';font-weight:700;
  font-size:14px;letter-spacing:.04em;cursor:pointer;border:0;transition:gap .3s var(--ease),transform .3s}
.btn .arc{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;flex:0 0 auto;
  transition:background .35s,color .35s,border-color .35s}
.btn svg{width:18px;height:18px}
.btn-solid .arc{background:var(--accent);color:var(--ink)}
.btn-solid:hover{gap:20px}
.btn-ghost .arc{border:1.5px solid var(--line);color:var(--tx)}
.btn-ghost:hover .arc{border-color:var(--accent);background:var(--accent);color:var(--ink)}
.btn-ghost:hover{gap:20px}
.btn.on-paper{color:var(--ink)}
.link-arrow{display:inline-flex;align-items:center;gap:10px;font-family:'Archivo';font-weight:700;
  font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);transition:gap .3s}
.link-arrow:hover{gap:16px}
.link-arrow svg{width:16px;height:16px}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:92vh;display:flex;align-items:flex-end;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;
  transform:scale(1.05);animation:heroDrift 30s var(--ease) infinite alternate}
@keyframes heroDrift{to{transform:scale(1.13)}}
.hero-scrim{position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(18,20,25,.55) 0%,rgba(18,20,25,0) 26%,rgba(18,20,25,.2) 55%,rgba(18,20,25,.94) 100%),
  linear-gradient(90deg,rgba(18,20,25,.65),rgba(18,20,25,0) 62%)}
.hero-in{position:relative;z-index:2;width:100%;padding-bottom:clamp(56px,7vw,96px)}
.hero h1{font-size:clamp(44px,7.4vw,104px);font-weight:800;line-height:.96;margin:24px 0}
.hero h1 .accent{color:var(--accent)}
.hero .lead{max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px 24px;align-items:center;margin-top:38px}
.scroll-cue{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:2;
  font-family:'Archivo';font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--tx-dim);
  display:flex;flex-direction:column;align-items:center;gap:10px}
.scroll-cue .bar{width:1px;height:38px;background:linear-gradient(var(--accent),transparent);animation:cue 2s ease-in-out infinite}
@keyframes cue{0%,100%{opacity:.3;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}

/* ---------- Stat / métricas ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-2);
  border:1px solid var(--line-2);border-radius:4px;overflow:hidden}
.stat{background:var(--ink);padding:clamp(24px,2.6vw,38px)}
.section.paper .stat{background:var(--paper)}
.stat .n{font-family:'Archivo';font-weight:800;font-size:clamp(34px,4vw,56px);letter-spacing:-.03em;line-height:1}
.stat .n .u{color:var(--accent);font-size:.5em;vertical-align:super;margin-left:2px}
.stat .l{margin-top:10px;font-size:13px;color:var(--tx-mut);letter-spacing:.02em}
.section.paper .stat .l{color:#5a5d65}

/* ---------- Cards de servicio ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(14px,1.6vw,22px)}
.svc{position:relative;border:1px solid var(--line);border-radius:5px;overflow:hidden;
  background:var(--ink-2);min-height:340px;display:flex;flex-direction:column;justify-content:flex-end;
  transition:border-color .4s,transform .4s var(--ease)}
.svc:hover{border-color:var(--accent);transform:translateY(-3px)}
.svc-ph{position:absolute;inset:0;background-size:cover;background-position:center;
  filter:grayscale(.5) brightness(.62);transition:transform 1s var(--ease),filter .5s}
.svc:hover .svc-ph{transform:scale(1.07);filter:grayscale(.15) brightness(.74)}
.svc::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,20,25,0) 30%,rgba(18,20,25,.92) 100%)}
.svc-body{position:relative;z-index:2;padding:clamp(22px,2.4vw,32px)}
.svc-ix{position:absolute;top:22px;left:24px;z-index:2;font-family:'Archivo';font-weight:800;
  font-size:13px;letter-spacing:.1em;color:var(--accent)}
.svc h3{font-size:clamp(21px,1.9vw,27px);font-weight:800;margin-bottom:12px}
.svc p{font-size:14.5px;color:var(--tx-mut);line-height:1.55;max-width:42ch}
.svc .tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.tag{font-family:'Archivo';font-size:10.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--tx-mut);border:1px solid var(--line);padding:6px 11px;border-radius:100px}

/* lista de servicios (texto) */
.svc-list{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-2);
  border:1px solid var(--line-2);border-radius:5px;overflow:hidden}
.svc-row{background:var(--ink);padding:clamp(26px,3vw,42px);transition:background .35s}
.svc-row:hover{background:var(--ink-2)}
.svc-row .ix{font-family:'Archivo';font-weight:800;color:var(--accent);font-size:14px;letter-spacing:.1em}
.svc-row h3{font-size:clamp(22px,2vw,30px);margin:16px 0 14px;font-weight:800}
.svc-row p{font-size:15px;color:var(--tx-mut);line-height:1.6;max-width:48ch}
.svc-row ul{list-style:none;margin-top:20px;display:flex;flex-wrap:wrap;gap:8px}
.svc-row li{font-size:12px;color:var(--tx-mut);border:1px solid var(--line);padding:7px 12px;border-radius:100px;letter-spacing:.02em}

/* ---------- Proyectos ---------- */
.proj-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(12px,1.4vw,20px)}
.proj{position:relative;border-radius:5px;overflow:hidden;min-height:300px;display:flex;
  align-items:flex-end;cursor:pointer;border:1px solid var(--line)}
.proj img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:grayscale(.4) brightness(.72);transition:transform 1.1s var(--ease),filter .5s}
.proj:hover img{transform:scale(1.06);filter:grayscale(0) brightness(.82)}
.proj::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(18,20,25,.9))}
.proj-cap{position:relative;z-index:2;padding:clamp(20px,2vw,30px);width:100%}
.proj-cap .meta{font-family:'Archivo';font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.proj-cap h3{font-size:clamp(19px,1.7vw,25px);margin-top:8px;font-weight:800}
.proj-cap .loc{font-size:13px;color:var(--tx-mut);margin-top:5px}
.col-12{grid-column:span 12}.col-8{grid-column:span 8}.col-6{grid-column:span 6}.col-4{grid-column:span 4}.col-5{grid-column:span 5}.col-7{grid-column:span 7}
.tall{min-height:440px}

/* ---------- Split feature ---------- */
.feature{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,72px);align-items:center}
.feature.rev{grid-template-columns:.95fr 1.05fr}
.feature.rev .feat-media{order:2}
.feat-media{position:relative;border-radius:6px;overflow:hidden;aspect-ratio:4/5}
.feat-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.feat-media .badge{position:absolute;left:0;bottom:0;background:var(--accent);color:var(--ink);
  font-family:'Archivo';font-weight:800;font-size:13px;letter-spacing:.06em;padding:14px 20px;border-radius:0 6px 0 0}
.feat-body h2{font-size:clamp(28px,3.4vw,46px);font-weight:800;margin:18px 0 18px}
.checklist{list-style:none;margin-top:26px;display:flex;flex-direction:column;gap:14px}
.checklist li{display:flex;gap:14px;align-items:flex-start;font-size:15.5px;color:var(--tx-mut)}
.checklist .ck{flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:1px solid var(--accent);
  display:grid;place-items:center;margin-top:1px}
.checklist .ck svg{width:13px;height:13px;color:var(--accent)}
.checklist b{color:var(--tx);font-weight:700}

/* ---------- CTA band ---------- */
.cta-band{position:relative;border-radius:8px;overflow:hidden;padding:clamp(48px,6vw,86px) clamp(28px,5vw,72px)}
.cta-band .bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:grayscale(.5) brightness(.4)}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(18,20,25,.86),rgba(18,20,25,.5))}
.cta-band .inner{position:relative;z-index:2;max-width:60ch}
.cta-band h2{font-size:clamp(30px,4.2vw,58px);font-weight:800;margin:20px 0 22px;line-height:1.0}

/* ---------- Footer ---------- */
.foot{background:#101216;border-top:1px solid var(--line);padding:clamp(56px,6vw,88px) 0 36px}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px;border-bottom:1px solid var(--line)}
.foot-brand img{height:30px;margin-bottom:20px}
.foot-brand p{font-size:14px;color:var(--tx-mut);max-width:34ch;line-height:1.6}
.foot h4{font-family:'Archivo';font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--tx-dim);margin-bottom:18px}
.foot ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.foot ul a,.foot ul li{font-size:14px;color:var(--tx-mut);transition:color .25s}
.foot ul a:hover{color:var(--accent)}
.foot-bot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;padding-top:28px;
  font-size:12.5px;color:var(--tx-dim);letter-spacing:.02em}
.foot-bot .switch{display:flex;gap:10px;align-items:center}
.foot-bot .switch a{color:var(--tx-mut);font-family:'Archivo';font-weight:700;letter-spacing:.08em;font-size:11px;text-transform:uppercase}
.foot-bot .switch a:hover{color:var(--accent)}

/* ---------- Form ---------- */
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:9px}
.field.full{grid-column:span 2}
.field label{font-family:'Archivo';font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--tx-mut)}
.field input,.field select,.field textarea{background:var(--ink-2);border:1px solid var(--line);
  border-radius:5px;padding:15px 16px;color:var(--tx);font-family:inherit;font-size:15px;transition:border-color .25s}
.field input:focus,.field select,.field textarea:focus{outline:none;border-color:var(--accent)}
.field textarea{resize:vertical;min-height:130px}
.field select{appearance:none;cursor:pointer}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .svc-grid,.svc-list,.feature,.feature.rev,.form{grid-template-columns:1fr}
  .feature.rev .feat-media{order:0}
  .stats{grid-template-columns:repeat(2,1fr)}
  .foot-top{grid-template-columns:1fr 1fr}
  .col-8,.col-6,.col-4,.col-5,.col-7{grid-column:span 12}
  .feat-media{aspect-ratio:16/11}
}
@media(max-width:760px){
  .nav-links{position:fixed;inset:74px 0 auto 0;flex-direction:column;background:rgba(16,18,22,.97);
    backdrop-filter:blur(16px);border-bottom:1px solid var(--line);padding:18px;gap:4px;
    transform:translateY(-130%);transition:transform .4s var(--ease);align-items:stretch}
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 16px;font-size:16px}
  .nav-cta{display:none}
  .nav-toggle{display:block}
  .foot-top{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
}