/* ============================================================
   GRUPO ARCOOP — Identidad "Precisión de ingeniería"
   Display: Archivo · Texto: Inter · Datos: Space Mono
   ============================================================ */

:root{
  --ink:#141a16;          /* carbón */
  --ink-2:#20272200;
  --forest:#0f5c2a;       /* verde oscuro */
  --green:#1f9d45;        /* verde ARCOOP */
  --green-bright:#2fbf58;
  --concrete:#f2f3ef;     /* fondo claro */
  --concrete-2:#e6e8e1;
  --steel:#6b736c;        /* gris texto secundario */
  --line:#d6d9d0;
  --white:#ffffff;
  --shadow:0 18px 50px -24px rgba(20,26,22,.35);

  --maxw:1200px;
  --pad:clamp(20px,5vw,64px);
  --r:4px;

  --f-display:"Archivo","Arial Narrow",sans-serif;
  --f-body:"Inter",system-ui,sans-serif;
  --f-mono:"Space Mono","Courier New",monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--concrete);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-family:var(--f-display);font-weight:800;line-height:1.02;letter-spacing:-.02em}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.section{padding-block:clamp(64px,10vw,120px)}

/* --- Eyebrow / etiqueta técnica --- */
.eyebrow{
  font-family:var(--f-mono);
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--green);
  display:inline-flex;align-items:center;gap:.6em;
  margin:0 0 1.2rem;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--green)}

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(242,243,239,.82);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav__in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--f-display);font-weight:800;font-size:1.05rem;letter-spacing:-.01em}
.brand img{height:34px;width:auto}
.brand small{display:block;font-family:var(--f-mono);font-weight:400;font-size:.58rem;letter-spacing:.2em;color:var(--steel);text-transform:uppercase}
.nav__links{display:flex;gap:28px;align-items:center}
.nav__links a{font-size:.86rem;font-weight:500;color:var(--ink);opacity:.82;transition:opacity .2s}
.nav__links a:hover{opacity:1}
.nav__cta{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;padding:.7em 1.2em;border:1px solid var(--ink);border-radius:var(--r);transition:.2s}
.nav__cta:hover{background:var(--ink);color:var(--white)}
.nav__toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav__toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.3s}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;overflow:hidden;background:var(--ink);color:var(--white)}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;min-height:min(88vh,760px)}
.hero__left{display:flex;flex-direction:column;justify-content:center;padding:clamp(40px,7vw,90px) var(--pad);position:relative}
.hero__left .eyebrow{color:var(--green-bright)}
.hero h1{font-size:clamp(2.6rem,6vw,4.6rem);letter-spacing:-.03em}
.hero h1 em{font-style:normal;color:var(--green-bright)}
.hero__lead{max-width:46ch;margin:1.6rem 0 2.4rem;color:#c7ccc6;font-size:1.02rem}
.hero__ctas{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:.6em;font-family:var(--f-mono);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;padding:.95em 1.5em;border-radius:var(--r);transition:.2s;cursor:pointer;border:1px solid transparent}
.btn--primary{background:var(--green);color:var(--white)}
.btn--primary:hover{background:var(--green-bright)}
.btn--ghost{border-color:rgba(255,255,255,.28);color:var(--white)}
.btn--ghost:hover{border-color:var(--white);background:rgba(255,255,255,.06)}
.btn--dark{background:var(--ink);color:var(--white)}
.btn--dark:hover{background:#2a332c}

.hero__right{position:relative}
.hero__right img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero__right::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--ink) 0%,transparent 22%,transparent 100%)}
/* marca topográfica en esquina */
.hero__coord{position:absolute;bottom:22px;right:22px;z-index:2;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.14em;color:rgba(255,255,255,.75);text-align:right;text-transform:uppercase}

/* ============================================================
   STATS / medición
   ============================================================ */
.stats{background:var(--ink);color:var(--white);border-top:1px solid rgba(255,255,255,.08)}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:clamp(28px,4vw,48px) var(--pad);border-left:1px solid rgba(255,255,255,.09)}
.stat:first-child{border-left:0}
.stat__val{font-family:var(--f-mono);font-weight:700;font-size:clamp(1.8rem,3.4vw,2.7rem);letter-spacing:-.02em;display:flex;align-items:baseline;gap:.15em}
.stat__val .u{font-size:.5em;color:var(--green-bright)}
.stat__label{font-size:.82rem;color:#aab0a9;margin-top:.5rem;max-width:24ch}

/* ============================================================
   ABOUT
   ============================================================ */
.about__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,80px);align-items:start}
.about h2{font-size:clamp(1.9rem,4vw,3rem)}
.about__body{color:#3a4239;font-size:1.05rem}
.about__body p{margin:1.1rem 0}
.philosophy{margin-top:2rem;padding:1.4rem 1.6rem;border-left:3px solid var(--green);background:var(--white);border-radius:0 var(--r) var(--r) 0;font-family:var(--f-display);font-weight:600;font-size:1.15rem;line-height:1.3}
.pillars{display:flex;gap:10px;flex-wrap:wrap;margin-top:1.4rem}
.pillars span{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;padding:.5em .9em;border:1px solid var(--line);border-radius:100px}

/* botón descarga currículum */
.dl{margin-top:1.6rem;flex-direction:column;align-items:flex-start;gap:.15rem;padding:1em 1.3em 1em 3em;position:relative;text-transform:none;letter-spacing:0;font-family:var(--f-body)}
.dl::before{content:"↓";position:absolute;left:1.3em;top:50%;transform:translateY(-50%);font-family:var(--f-mono);font-size:1.2rem;color:var(--green-bright)}
.dl span{font-weight:700;font-size:.95rem}
.dl small{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.06em;color:#aab0a9;text-transform:uppercase}
.dl:hover{background:#2a332c}

/* timeline */
.timeline{border-top:1px solid var(--line);margin-top:.5rem}
.tl{display:grid;grid-template-columns:100px 1fr;gap:24px;padding:1.5rem 0;border-bottom:1px solid var(--line)}
.tl__year{font-family:var(--f-mono);font-weight:700;color:var(--green);font-size:1.1rem}
.tl__text{color:#3a4239;font-size:.96rem}

/* ============================================================
   SERVICES
   ============================================================ */
.services{background:var(--ink);color:var(--white)}
.services h2{font-size:clamp(1.9rem,4vw,3rem);max-width:16ch}
.services__head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:3rem}
.services__head p{color:#aab0a9;max-width:40ch;margin:0}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.09)}
.svc{background:var(--ink);padding:clamp(24px,3vw,36px);transition:background .25s}
.svc:hover{background:#1b221d}
.svc__code{font-family:var(--f-mono);font-size:.78rem;color:var(--green-bright);letter-spacing:.1em}
.svc h3{font-size:1.4rem;margin:.7rem 0 1.1rem}
.svc ul{list-style:none;margin:0;padding:0}
.svc li{font-size:.9rem;color:#c1c7c0;padding:.4rem 0 .4rem 1.2rem;position:relative;border-top:1px solid rgba(255,255,255,.06)}
.svc li:first-child{border-top:0}
.svc li::before{content:"›";position:absolute;left:0;color:var(--green)}

/* ============================================================
   PROJECTS
   ============================================================ */
.proj__head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:2.6rem}
.proj__head h2{font-size:clamp(1.9rem,4vw,3rem)}
.proj__head .m2{font-family:var(--f-mono);color:var(--steel);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase}
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{position:relative;border-radius:var(--r);overflow:hidden;background:var(--ink);cursor:pointer;aspect-ratio:4/3}
.card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.2,1);filter:saturate(.96)}
.card:hover img{transform:scale(1.06)}
.card__grad{position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(10,14,11,.86) 100%)}
.card__meta{position:absolute;left:0;right:0;bottom:0;padding:18px 20px;color:var(--white);z-index:2}
.card__sector{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--green-bright)}
.card__title{font-family:var(--f-display);font-weight:700;font-size:1.08rem;line-height:1.15;margin:.35rem 0 .2rem}
.card__area{font-family:var(--f-mono);font-size:.78rem;color:#d3d8d1}
.card__area::before{content:"◢ ";color:var(--green)}

/* ============================================================
   CLIENTS
   ============================================================ */
.clients{background:var(--concrete-2)}
.clients__grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,6vw,72px);align-items:center}
.clients h2{font-size:clamp(1.9rem,4vw,3rem)}
.sectors{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.sectors span{background:var(--concrete);padding:1.1rem 1.2rem;font-weight:600;font-size:.95rem;display:flex;align-items:center;gap:.7em}
.sectors span::before{content:attr(data-i);font-family:var(--f-mono);font-size:.72rem;color:var(--green);opacity:.9}

/* ============================================================
   COMPANIES + TEAM
   ============================================================ */
.group__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:2.4rem}
.co{border:1px solid var(--line);border-radius:var(--r);padding:1.6rem;background:var(--white);transition:.2s}
.co:hover{border-color:var(--green);box-shadow:var(--shadow)}
.co h3{font-size:1.15rem}
.co__role{color:var(--steel);font-size:.9rem;margin:.3rem 0 1rem}
.co__data{font-family:var(--f-mono);font-size:.74rem;color:#4a524a;display:grid;gap:.25rem}
.co__data b{color:var(--green);font-weight:400}

.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:2.4rem}
.mem{padding:1.4rem 0;border-top:2px solid var(--ink)}
.mem h3{font-size:1.05rem}
.mem__role{color:var(--green);font-weight:600;font-size:.88rem;margin:.3rem 0}
.mem__detail{color:var(--steel);font-size:.82rem;font-family:var(--f-mono)}

/* ============================================================
   CONTACT
   ============================================================ */
.contact{background:var(--ink);color:var(--white)}
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,72px)}
.contact h2{font-size:clamp(2rem,4.5vw,3.4rem)}
.contact__lead{color:#c7ccc6;max-width:42ch;margin:1.4rem 0 2.2rem}
.cinfo{display:grid;gap:1.3rem;margin-top:2rem}
.cinfo__item{display:flex;flex-direction:column;gap:.2rem}
.cinfo__k{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--green-bright)}
.cinfo__v{font-size:.98rem;color:#e4e7e2}
.form{display:grid;gap:14px}
.form label{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:#9aa199;margin-bottom:-8px}
.form input,.form textarea{font-family:var(--f-body);font-size:.98rem;padding:.9em 1em;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.16);border-radius:var(--r);color:var(--white);transition:.2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--green);background:rgba(255,255,255,.08)}
.form textarea{resize:vertical;min-height:120px}
.form__note{font-size:.78rem;color:#9aa199}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{background:#0d110e;color:#9aa199;padding-block:48px;font-size:.85rem}
.footer__grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center}
.footer .brand{color:var(--white)}
.footer a:hover{color:var(--green-bright)}
.footer__legal{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.05em}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lb{position:fixed;inset:0;z-index:100;background:rgba(8,11,9,.94);display:none;align-items:center;justify-content:center;padding:24px}
.lb.open{display:flex}
.lb img{max-width:92vw;max-height:82vh;border-radius:var(--r)}
.lb__cap{position:absolute;bottom:24px;left:0;right:0;text-align:center;color:#fff;font-family:var(--f-mono);font-size:.8rem;letter-spacing:.08em}
.lb__x{position:absolute;top:20px;right:24px;background:none;border:0;color:#fff;font-size:2rem;cursor:pointer;line-height:1}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1000px){
  .hero__grid{grid-template-columns:1fr}
  .hero__right{min-height:300px;order:-1}
  .hero__right::after{background:linear-gradient(0deg,var(--ink) 2%,transparent 55%)}
  .stats__grid{grid-template-columns:1fr 1fr}
  .stat:nth-child(-n+2){border-top:0}
  .stat:nth-child(3){border-left:0}
  .svc-grid{grid-template-columns:1fr 1fr}
  .proj-grid{grid-template-columns:1fr 1fr}
  .team-grid{grid-template-columns:1fr 1fr}
  .about__grid,.clients__grid,.contact__grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .nav__links{position:fixed;inset:70px 0 auto;flex-direction:column;background:var(--concrete);border-bottom:1px solid var(--line);padding:20px var(--pad);gap:18px;transform:translateY(-140%);transition:transform .35s;height:auto;align-items:flex-start}
  .nav__links.open{transform:none}
  .nav__toggle{display:block}
  .stats__grid{grid-template-columns:1fr 1fr}
  .svc-grid,.proj-grid,.team-grid,.group__grid,.sectors{grid-template-columns:1fr}
  .stat{border-left:0}
  .stat:nth-child(n){border-top:1px solid rgba(255,255,255,.09)}
}