/* Ardenti — catálogo digital. Paleta anclada al logo real (fondo #221f20, llama #d35028). */

:root{
  --negro:   #161514;
  --negro-2: #1c1a19;
  --negro-3: #221f20;
  --negro-4: #2a2624;
  --negro-5: #34302d;
  --linea:   rgba(211,80,40,.16);
  --linea-2: rgba(211,80,40,.32);
  --ember:        #d35028;
  --ember-claro:  #e8834f;
  --ember-oscuro: #9c3c1f;
  --ember-grad: linear-gradient(135deg,#e8834f 0%,#d35028 55%,#9c3c1f 100%);
  --crema: #f3ece1;
  --texto: #ece4d8;
  --texto-mut: #a4988a;
  --ok: #5ea36a;

  --serif: "Fraunces", Georgia, "Songti SC", serif;
  --ui: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --wrap: 1180px;
  --radius: 14px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; background:var(--negro-2); color:var(--texto);
  font-family:var(--ui); font-size:16px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3{ font-family:var(--serif); font-weight:600; margin:0 0 .5em; letter-spacing:-.01em; }
p{ margin:0 0 1em; }
ul,ol{ margin:0; padding:0; list-style:none; }

.kicker{
  display:inline-block; font-family:var(--ui); font-size:.78rem; font-weight:700;
  letter-spacing:.14em; text-transform:uppercase; color:var(--ember-claro); margin-bottom:.6rem;
}

/* ── Botones ── */
.btn{
  display:inline-flex; align-items:center; gap:.5rem; padding:.85rem 1.6rem;
  border-radius:999px; font-family:var(--ui); font-weight:600; font-size:.95rem;
  border:1px solid transparent; cursor:pointer; transition:.25s;
}
.btn-fuego{ background:var(--ember-grad); color:#1c1210; }
.btn-fuego:hover{ transform:translateY(-1px); box-shadow:0 12px 30px rgba(211,80,40,.35); }
.btn-line{ border-color:var(--linea-2); color:var(--crema); }
.btn-line:hover{ border-color:var(--ember); background:rgba(211,80,40,.08); }
.btn-lg{ padding:1.1rem 2.2rem; font-size:1.05rem; }

.btn-wa{
  display:inline-flex; align-items:center; gap:.4rem; padding:.55rem 1.1rem;
  border-radius:999px; border:1px solid var(--linea-2); font-size:.85rem; font-weight:600;
  color:var(--crema); transition:.25s; white-space:nowrap;
}
.btn-wa:hover{ border-color:var(--ember); background:rgba(211,80,40,.1); }
.wa-ico{ color:var(--ember-claro); display:flex; }

.wa-float{
  position:fixed; right:1.3rem; bottom:1.3rem; z-index:60; width:54px; height:54px;
  border-radius:50%; background:var(--ember-grad); color:#1c1210; display:grid; place-items:center;
  box-shadow:0 10px 30px rgba(211,80,40,.4); transition:.25s;
}
.wa-float:hover{ transform:scale(1.08); }

/* ── NAV ── */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding:.9rem 2rem; background:rgba(22,21,20,.72); backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--linea);
}
.nav-brand{ display:flex; align-items:center; gap:.55rem; font-family:var(--serif); font-weight:600; font-size:1.2rem; letter-spacing:.03em; }
.nav-flame{ width:22px; height:auto; }
.nav-links{ display:flex; gap:1.6rem; font-size:.9rem; font-weight:500; }
.nav-links a{ opacity:.82; transition:.2s; }
.nav-links a:hover{ opacity:1; color:var(--ember-claro); }

/* ── HERO ── */
.hero{
  position:relative; min-height:100svh; display:flex; flex-direction:column;
  align-items:center; justify-content:center; text-align:center; padding:7rem 1.5rem 4rem;
  overflow:hidden;
}
.hero-bg{
  position:absolute; inset:0; background-size:cover; background-position:center;
  filter:saturate(.85) brightness(.55);
}
.hero-scrim{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(20,18,17,.55) 0%, rgba(20,18,17,.72) 55%, var(--negro-2) 100%);
}
.hero-content{ position:relative; max-width:780px; }
.hero-logo{ width:210px; margin:0 auto 1.6rem; }
.hero-tagline{ font-family:var(--serif); font-style:italic; color:var(--ember-claro); font-size:1.15rem; margin-bottom:.4rem; }
.hero h1{ font-size:clamp(1.8rem, 4.2vw, 3rem); color:var(--crema); line-height:1.15; }
.hero-desc{ color:var(--texto-mut); max-width:600px; margin-left:auto; margin-right:auto; }
.hero-cta{ display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; margin-top:1.6rem; }

.hero-stats{
  position:relative; display:flex; gap:2.5rem; flex-wrap:wrap; justify-content:center;
  margin-top:3rem; padding-top:2rem; border-top:1px solid var(--linea);
  width:100%; max-width:760px;
}
.stat{ text-align:center; }
.stat-valor{ display:block; font-family:var(--serif); font-size:1.9rem; color:var(--ember-claro); font-weight:600; }
.stat-label{ font-size:.82rem; color:var(--texto-mut); text-transform:uppercase; letter-spacing:.06em; }

/* ── CREDENCIALES ── */
.creds{
  display:flex; flex-wrap:wrap; gap:1.5rem; justify-content:center;
  padding:2.6rem 2rem; background:var(--negro-3); border-top:1px solid var(--linea); border-bottom:1px solid var(--linea);
}
.creds-item{ flex:1 1 260px; max-width:340px; text-align:center; }
.creds-tag{
  display:inline-block; font-size:.72rem; font-weight:700; letter-spacing:.12em; text-transform:uppercase;
  color:var(--ember-claro); border:1px solid var(--linea-2); border-radius:999px; padding:.25rem .8rem; margin-bottom:.7rem;
}
.creds-item p{ margin:0; color:var(--texto-mut); font-size:.95rem; }
.creds-item strong{ color:var(--crema); }

/* ── SECCIONES ── */
.section{ padding:5.5rem 2rem; max-width:var(--wrap); margin:0 auto; }
.section-alt{ max-width:none; background:var(--negro-3); }
.section-alt > *{ max-width:var(--wrap); margin-left:auto; margin-right:auto; }
.section-head{ text-align:center; max-width:640px; margin:0 auto 3rem; }
.section-head h2{ font-size:clamp(1.6rem,3vw,2.3rem); color:var(--crema); }
.section-sub{ color:var(--texto-mut); margin:0; }

/* ── CATÁLOGO ── */
.cat-tabs{ display:flex; gap:.6rem; justify-content:center; flex-wrap:wrap; margin-bottom:2.6rem; }
.cat-tab{
  padding:.55rem 1.3rem; border-radius:999px; border:1px solid var(--linea-2); background:transparent;
  color:var(--texto-mut); font-family:var(--ui); font-size:.88rem; font-weight:600; cursor:pointer; transition:.2s;
}
.cat-tab:hover{ color:var(--crema); border-color:var(--ember); }
.cat-tab.is-active{ background:var(--ember-grad); color:#1c1210; border-color:transparent; }

.cat-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(270px,1fr)); gap:1.6rem; }
.card{
  background:var(--negro-3); border:1px solid var(--linea); border-radius:var(--radius); overflow:hidden;
  transition:.3s; cursor:pointer; display:flex; flex-direction:column;
}
.card:hover{ transform:translateY(-4px); border-color:var(--linea-2); box-shadow:0 20px 40px rgba(0,0,0,.35); }
.card-photo{ aspect-ratio:4/3; overflow:hidden; background:var(--negro-4); }
.card-photo img{ width:100%; height:100%; object-fit:cover; transition:transform .5s; }
.card:hover .card-photo img{ transform:scale(1.05); }
.card-body{ padding:1.3rem 1.4rem 1.5rem; display:flex; flex-direction:column; gap:.5rem; flex:1; }
.card-body h3{ font-size:1.2rem; color:var(--crema); margin:0; }
.card-resumen{ color:var(--texto-mut); font-size:.9rem; margin:0; flex:1; }
.card-foot{ display:flex; align-items:center; justify-content:space-between; margin-top:.6rem; }
.card-link{ font-size:.85rem; font-weight:700; color:var(--ember-claro); }

/* ── CÓMO FUNCIONA ── */
.proceso{
  max-width:820px; margin:0 auto; display:flex; flex-direction:column; gap:0;
  counter-reset:paso; position:relative;
}
.proceso li{
  display:flex; gap:1.3rem; padding:1.5rem 0; border-bottom:1px solid var(--linea);
}
.proceso li:last-child{ border-bottom:none; }
.paso-num{
  flex:none; width:44px; height:44px; border-radius:50%; border:1px solid var(--linea-2);
  display:grid; place-items:center; font-family:var(--serif); font-weight:600; color:var(--ember-claro);
}
.paso-titulo{ font-family:var(--serif); font-size:1.15rem; color:var(--crema); margin:0 0 .3rem; }
.paso-detalle{ color:var(--texto-mut); margin:0; font-size:.92rem; }
.nota-arquitectos{
  text-align:center; max-width:640px; margin:2.6rem auto 0; padding:1.2rem 1.6rem;
  border:1px solid var(--linea-2); border-radius:var(--radius); color:var(--crema); font-style:italic;
  font-family:var(--serif); font-size:1.02rem; background:rgba(211,80,40,.06);
}

/* ── PROYECTOS ── */
.proyectos-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(280px,1fr)); gap:1.2rem; }
.proyecto-card{ position:relative; border-radius:var(--radius); overflow:hidden; aspect-ratio:4/3; }
.proyecto-card img{ width:100%; height:100%; object-fit:cover; transition:transform .5s; }
.proyecto-card:hover img{ transform:scale(1.06); }
.proyecto-tag{
  position:absolute; top:.7rem; left:.7rem; font-size:.68rem; font-weight:700; text-transform:uppercase;
  letter-spacing:.06em; padding:.3rem .6rem; border-radius:999px; backdrop-filter:blur(6px);
}
.proyecto-tag.instalado{ background:rgba(94,163,106,.85); color:#0e1a10; }
.proyecto-tag.propuesta{ background:rgba(211,80,40,.85); color:#1c1210; }
.proyecto-caption{
  position:absolute; inset:auto 0 0 0; padding:1.6rem .9rem .8rem;
  background:linear-gradient(180deg, transparent, rgba(10,9,8,.92));
  font-size:.82rem; color:var(--crema);
}

/* ── CASACOR ── */
.casacor-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(260px,1fr)); gap:1.4rem; }
.casacor-card{ border-radius:var(--radius); overflow:hidden; background:var(--negro-4); border:1px solid var(--linea); }
.casacor-card img{ aspect-ratio:16/11; object-fit:cover; width:100%; }
.casacor-body{ padding:1.1rem 1.3rem; }
.casacor-anio{ font-size:.75rem; color:var(--ember-claro); font-weight:700; letter-spacing:.08em; }
.casacor-body h3{ font-size:1.05rem; margin:.25rem 0 .2rem; color:var(--crema); }
.casacor-autor{ font-size:.85rem; color:var(--texto-mut); margin:0; }

/* ── CLIENTES ── */
.clientes-wrap{ border:1px solid var(--linea); border-radius:var(--radius); overflow:hidden; background:var(--negro-3); }
.clientes-img{ width:100%; filter:brightness(1.02); }

/* ── SERVICIOS ── */
.servicios-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(240px,1fr)); gap:1.4rem; }
.servicio-card{ border:1px solid var(--linea); border-radius:var(--radius); overflow:hidden; background:var(--negro-4); }
.servicio-card img{ aspect-ratio:16/10; object-fit:cover; width:100%; }
.servicio-body{ padding:1.1rem 1.3rem 1.4rem; }
.servicio-body h3{ font-size:1.05rem; margin:0 0 .35rem; color:var(--crema); }
.servicio-body p{ font-size:.88rem; color:var(--texto-mut); margin:0; }

/* ── OBRAS (galería auxiliar) ── */
.obras{ padding-top:0; padding-bottom:3rem; }
.obras-grid{ display:grid; grid-template-columns:repeat(6, 1fr); gap:.6rem; }
.obras-grid img{ aspect-ratio:1; object-fit:cover; border-radius:8px; opacity:.85; transition:.25s; }
.obras-grid img:hover{ opacity:1; }

/* ── CTA FINAL ── */
.cta-final{
  text-align:center; padding:6rem 2rem; background:var(--negro-3); border-top:1px solid var(--linea);
}
.cta-flame{ width:52px; margin:0 auto 1.2rem; }
.cta-final h2{ color:var(--crema); font-size:clamp(1.6rem,3vw,2.2rem); }
.cta-final p{ color:var(--texto-mut); max-width:480px; margin:0 auto 1.8rem; }

/* ── FOOTER ── */
.footer{ text-align:center; padding:3rem 1.5rem; color:var(--texto-mut); font-size:.88rem; }
.footer-brand{ display:flex; align-items:center; justify-content:center; gap:.5rem; font-family:var(--serif); font-size:1.1rem; color:var(--crema); margin-bottom:.6rem; }
.footer-flame{ width:18px; }
.footer a{ color:var(--ember-claro); font-weight:600; }

/* ── MODAL ── */
.modal{ position:fixed; inset:0; z-index:80; display:flex; align-items:center; justify-content:center; padding:2rem; }
.modal[hidden]{ display:none; }
.modal-backdrop{ position:absolute; inset:0; background:rgba(10,9,8,.75); backdrop-filter:blur(4px); }
.modal-card{
  position:relative; max-width:760px; width:100%; max-height:86vh; overflow-y:auto;
  background:var(--negro-3); border:1px solid var(--linea-2); border-radius:18px; padding:2rem;
}
.modal-close{
  position:absolute; top:1rem; right:1rem; background:var(--negro-4); border:1px solid var(--linea-2);
  color:var(--crema); width:36px; height:36px; border-radius:50%; cursor:pointer; font-size:1rem;
}
.modal-body h3{ font-size:1.5rem; color:var(--crema); padding-right:2.5rem; }
.modal-resumen{ color:var(--texto-mut); }
.modal-galeria{ display:flex; gap:.6rem; overflow-x:auto; margin:1.2rem 0; padding-bottom:.4rem; }
.modal-galeria figure{ margin:0; flex:none; width:150px; }
.modal-galeria img{ width:150px; height:112px; object-fit:cover; border-radius:8px; }
.modal-galeria figcaption{ font-size:.72rem; color:var(--texto-mut); margin-top:.3rem; text-align:center; }
.modal-specs{ width:100%; border-collapse:collapse; margin:1.2rem 0; font-size:.9rem; }
.modal-specs td{ padding:.55rem .3rem; border-bottom:1px solid var(--linea); vertical-align:top; }
.modal-specs td:first-child{ color:var(--ember-claro); font-weight:600; width:38%; white-space:nowrap; }
.modal-materiales{ font-size:.85rem; color:var(--texto-mut); font-style:italic; margin-bottom:.6rem; }
.modal-cta{ margin-top:1rem; }

/* ── reveal on scroll ── */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease; }
.reveal.is-visible{ opacity:1; transform:none; }

/* ── responsive ── */
@media (max-width: 860px){
  .nav-links{ display:none; }
  .hero{ padding-top:6rem; }
  .obras-grid{ grid-template-columns:repeat(3,1fr); }
  .section{ padding:3.5rem 1.2rem; }
}