/* ===== ECA S.A. — Empresa Constructora Acuña — hoja de estilos ===== */
:root{
  --red: #E8342E;
  --red-dark: #B9231F;
  --black: #171717;
  --gray-900: #2B2B2B;
  --gray-700: #545454;
  --gray-300: #d8d8d8;
  --gray-100: #f3f3f2;
  --white: #ffffff;
  --serif-display: 'Oswald', 'Arial Narrow', sans-serif;
  --sans: 'Inter', Arial, Helvetica, sans-serif;
  --maxw: 1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--gray-900);
  background:var(--white);
  line-height:1.55;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
h1,h2,h3,h4{font-family:var(--serif-display);text-transform:uppercase;letter-spacing:.02em;margin:0 0 .5em;color:var(--black);}
h1{font-size:clamp(2.2rem,5vw,3.4rem);line-height:1.05;}
h2{font-size:clamp(1.5rem,3vw,2.1rem);}
h3{font-size:1.15rem;}
p{margin:0 0 1em;color:var(--gray-700);}
.eyebrow{
  display:inline-block;color:var(--red);font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;font-size:.78rem;margin-bottom:.6em;
}
.eyebrow::before{content:"— ";}

/* ---------- header ---------- */
header.site{
  position:sticky;top:0;z-index:50;background:var(--black);
  border-bottom:4px solid var(--red);
}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:74px;}
.logo{display:flex;align-items:baseline;gap:8px;color:var(--white);font-family:var(--serif-display);}
.logo .eca{font-size:1.7rem;font-weight:700;color:var(--red);letter-spacing:.02em;}
.logo .sa{font-size:1.1rem;color:var(--white);}
.logo small{display:block;font-family:var(--sans);font-size:.6rem;letter-spacing:.08em;color:var(--gray-300);text-transform:none;font-weight:400;}
nav.mainnav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0;}
nav.mainnav a{
  color:var(--gray-300);font-weight:600;font-size:.85rem;letter-spacing:.03em;
  text-transform:uppercase;padding:10px 14px;border-radius:2px;transition:.15s;
}
nav.mainnav a:hover,nav.mainnav a.active{color:var(--white);background:var(--red);}
.navtoggle{display:none;background:none;border:0;color:var(--white);font-size:1.6rem;cursor:pointer;}

@media(max-width:820px){
  nav.mainnav{position:fixed;top:74px;left:0;right:0;background:var(--black);border-bottom:4px solid var(--red);
    max-height:0;overflow:hidden;transition:max-height .25s ease;}
  nav.mainnav.open{max-height:400px;}
  nav.mainnav ul{flex-direction:column;padding:10px 24px 20px;}
  nav.mainnav a{display:block;padding:12px 4px;border-bottom:1px solid #333;}
  .navtoggle{display:block;}
}

/* ---------- hero ---------- */
.hero{
  position:relative;color:var(--white);
  min-height:78vh;display:flex;align-items:flex-end;
  background:linear-gradient(180deg,rgba(10,10,10,.25),rgba(10,10,10,.55) 60%,rgba(10,10,10,.85)),
             center/cover no-repeat;
}
.hero-page{min-height:38vh;align-items:center;}
.hero .wrap{padding-bottom:64px;position:relative;}
.hero-page .wrap{padding-bottom:0;}
.hero h1{color:var(--white);margin-bottom:.3em;}
.hero p.lead{color:var(--gray-300);max-width:640px;font-size:1.05rem;}
.hero-tag{
  position:absolute;top:24px;left:24px;background:var(--red);color:var(--white);
  padding:6px 14px;font-weight:700;letter-spacing:.08em;font-size:.75rem;text-transform:uppercase;
}
.btn{
  display:inline-block;background:var(--red);color:var(--white);font-weight:700;
  padding:14px 28px;text-transform:uppercase;letter-spacing:.05em;font-size:.85rem;
  border:none;cursor:pointer;transition:.15s;
}
.btn:hover{background:var(--red-dark);}
.btn.outline{background:transparent;border:2px solid var(--white);}
.btn.outline:hover{background:var(--white);color:var(--black);}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:1.2em;}

/* ---------- sections ---------- */
section{padding:70px 0;}
section.tight{padding:40px 0;}
.section-alt{background:var(--gray-100);}
.section-dark{background:var(--black);color:var(--white);}
.section-dark h2,.section-dark h3{color:var(--white);}
.section-dark p{color:var(--gray-300);}

.grid{display:grid;gap:26px;}
.grid-2{grid-template-columns:1fr 1fr;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media(max-width:900px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr 1fr;}}
@media(max-width:600px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}}

.card{background:var(--white);border:1px solid var(--gray-300);}
.card img{aspect-ratio:4/3;object-fit:cover;width:100%;}
.card .card-body{padding:18px 20px;}
.card h3{margin-bottom:.3em;}
.card .meta{color:var(--red);font-weight:700;font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:.4em;}

.stats{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid #3a3a3a;border-bottom:1px solid #3a3a3a;}
.stat{flex:1 1 200px;padding:26px 10px;text-align:center;border-left:1px solid #3a3a3a;}
.stat:first-child{border-left:none;}
.stat .num{font-family:var(--serif-display);font-size:2.4rem;color:var(--red);display:block;}
.stat .lab{font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;color:var(--gray-300);}

.imgband{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;}
.imgband img{aspect-ratio:1/1;object-fit:cover;width:100%;filter:grayscale(15%);}
@media(max-width:700px){.imgband{grid-template-columns:repeat(2,1fr);}}

.values{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
@media(max-width:900px){.values{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.values{grid-template-columns:1fr;}}
.value-item{border-top:3px solid var(--red);padding-top:14px;}
.value-item .n{font-family:var(--serif-display);font-size:2rem;color:var(--gray-300);}

/* equipos */
.equipo-card{display:grid;grid-template-columns:220px 1fr;gap:20px;border:1px solid var(--gray-300);margin-bottom:22px;overflow:hidden;}
.equipo-card img{height:100%;object-fit:cover;}
.equipo-card .body{padding:20px 22px 20px 0;}
.equipo-card table{width:100%;border-collapse:collapse;font-size:.85rem;margin-top:10px;}
.equipo-card table td{padding:4px 8px;border-bottom:1px solid var(--gray-300);}
.equipo-card table td:first-child{color:var(--gray-700);width:45%;}
@media(max-width:700px){.equipo-card{grid-template-columns:1fr;}.equipo-card .body{padding:16px;}.equipo-card img{aspect-ratio:16/9;width:100%;}}

.chiplist{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0;}
.chiplist li{background:var(--gray-100);border:1px solid var(--gray-300);padding:7px 13px;font-size:.85rem;color:var(--gray-900);}

.video-frame{position:relative;aspect-ratio:16/9;background:var(--black);overflow:hidden;}
.video-frame img{width:100%;height:100%;object-fit:cover;opacity:.75;}
.video-frame .playbtn{
  position:absolute;inset:0;margin:auto;width:74px;height:74px;border-radius:50%;
  background:var(--red);color:var(--white);display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;border:4px solid rgba(255,255,255,.85);
}

/* obras table */
.obras-table{width:100%;border-collapse:collapse;font-size:.88rem;}
.obras-table th{background:var(--black);color:var(--white);text-align:left;padding:10px 12px;text-transform:uppercase;font-size:.72rem;letter-spacing:.04em;}
.obras-table td{padding:10px 12px;border-bottom:1px solid var(--gray-300);vertical-align:top;}
.obras-table tr:nth-child(even) td{background:var(--gray-100);}
.status{display:inline-block;padding:2px 9px;font-size:.7rem;font-weight:700;text-transform:uppercase;border-radius:2px;}
.status.done{background:#e4f4e6;color:#1c7a34;}
.status.wip{background:#fdecc8;color:#8a5a00;}

.filterbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px;}
.filterbar button{
  background:var(--white);border:1px solid var(--gray-300);padding:8px 16px;font-size:.8rem;
  text-transform:uppercase;letter-spacing:.04em;cursor:pointer;font-weight:600;color:var(--gray-700);
}
.filterbar button.active{background:var(--black);color:var(--white);border-color:var(--black);}

/* contacto */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr;}}
.info-line{display:flex;gap:14px;margin-bottom:20px;align-items:flex-start;}
.info-line .ico{width:38px;height:38px;flex:none;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;border-radius:2px;}
.info-line h4{margin:0 0 2px;font-size:.9rem;text-transform:uppercase;letter-spacing:.03em;color:var(--black);}
.info-line p{margin:0;color:var(--gray-700);}

form.contact-form{display:flex;flex-direction:column;gap:14px;}
form.contact-form label{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--gray-900);}
form.contact-form input,form.contact-form select,form.contact-form textarea{
  width:100%;padding:12px 14px;border:1px solid var(--gray-300);font-family:var(--sans);font-size:.95rem;background:var(--white);
}
form.contact-form input:focus,form.contact-form select:focus,form.contact-form textarea:focus{outline:2px solid var(--red);border-color:var(--red);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media(max-width:560px){.form-row{grid-template-columns:1fr;}}
.form-status{font-size:.9rem;padding:12px 14px;display:none;margin-top:4px;}
.form-status.ok{display:block;background:#e4f4e6;color:#1c7a34;border:1px solid #b9e3c0;}
.form-status.err{display:block;background:#fbe4e4;color:#a3241f;border:1px solid #f2bcbc;}

.map-embed{border:1px solid var(--gray-300);width:100%;height:340px;}

/* footer */
footer.site{background:var(--black);color:var(--gray-300);padding:50px 0 20px;}
footer.site .grid{grid-template-columns:1.4fr 1fr 1fr;margin-bottom:36px;}
@media(max-width:700px){footer.site .grid{grid-template-columns:1fr;}}
footer.site h4{color:var(--white);text-transform:uppercase;font-size:.85rem;letter-spacing:.05em;margin-bottom:14px;}
footer.site ul{list-style:none;padding:0;margin:0;}
footer.site li{margin-bottom:8px;font-size:.9rem;}
footer.site a:hover{color:var(--red);}
.foot-bottom{border-top:1px solid #333;padding-top:18px;font-size:.78rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:#8a8a8a;}

.breadcrumb{font-size:.8rem;color:var(--gray-300);margin-bottom:.6em;}
.breadcrumb a{color:var(--gray-300);}
.breadcrumb a:hover{color:var(--red);}