/* =========================
   Lux3D · Estilos base
   ========================= */

:root{
  --bg:#0f1720;
  --bg2:#1e2a38;
  --text:#e7eaee;
  --muted:#9fb0bf;
  --accent:#c8a96a;
  --card:#1b2734;
  --border:#213144;
}

*{box-sizing:border-box}
html{font-size:18px;}
html,body{margin:0;padding:0}
body{
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  text-align:center;
}

.container{max-width:1100px;margin:0 auto;padding:0 16px}

/* =========================
   Header + navegación
   ========================= */
.site-header{
  background:linear-gradient(180deg,var(--bg2),#233140);
  position:sticky;top:0;z-index:10;
  border-bottom:1px solid var(--border);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;gap:0;align-items:center;text-decoration:none;color:var(--text);font-weight:700}
.brand-logo{height:32px;width:auto;filter:drop-shadow(0 1px 1px #0008)}
.brand-text{
  font-weight:800;
  font-size:1.1rem;
  letter-spacing:.3px;
}

.site-header .menu a,
.site-header .menu a:link,
.site-header .menu a:visited{
  color: var(--text);
  opacity: .85;
  text-decoration: none;
  margin-left:20px;
  font-size:1rem;
}
.site-header .menu a:hover,
.site-header .menu a.active{
  color: var(--accent);
  opacity: 1;
}

a:focus-visible, button:focus-visible, summary:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:6px;
}

/* =========================
   Enlaces globales
   ========================= */
a{
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
a:hover{ filter: brightness(1.1); }
a:visited{ color: var(--accent); }

/* =========================
   Hero
   ========================= */
.hero{
  background:radial-gradient(1200px 500px at 50% -100px,#2a3a4c 0%,var(--bg) 55%);
  padding:64px 0 48px;border-bottom:1px solid var(--border)
}
.hero-inner{text-align:center}
.hero-logo{max-width:240px;width:40vw;height:auto;margin:0 auto 20px;display:block}
.hero h1{font-size:clamp(30px,4.2vw,46px);margin:10px 0}
.hero p{max-width:720px;margin:10px auto 22px;color:var(--muted);font-size:1.05rem}

.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* =========================
   Botones
   ========================= */
.btn{
  display:inline-block;padding:12px 18px;border-radius:999px;
  background:var(--accent);color:#111;text-decoration:none;font-weight:700;
  font-size:1rem;
}
.btn:hover{filter:brightness(1.05)}
.btn, .btn:visited {
  color: #111;
  text-decoration: none;
}
.btn.btn-outline{background:transparent;border:1px solid var(--accent);color:var(--accent)}
.btn.btn-outline, .btn.btn-outline:visited {
  color: var(--accent);
  text-decoration: none;
}

/* =========================
   Tarjetas / grids
   ========================= */
.features{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:16px;padding:28px 0
}
.card{
  background:var(--card);border:1px solid var(--border);
  border-radius:14px;padding:18px;text-align:left
}
.card h3{margin:0 0 8px;font-size:1.15rem;color:#f3e8c0}
.card p{margin:0;color:var(--muted)}

/* =========================
   Footer
   ========================= */
.site-footer{border-top:1px solid var(--border);margin-top:32px}
.site-footer .container{padding:20px 16px;text-align:center;color:var(--muted)}

.foot-links{
  display:flex;
  gap:10px;
  justify-content:center;
  align-items:center;
  margin-bottom:6px;
}
.foot-links span{ opacity:.6; }

/* =========================
   Secciones extra
   ========================= */
h1{margin:0}
h2{font-size:clamp(24px,3.4vw,32px);margin:6px 0 14px}

.proceso,.sectores{padding:26px 0;border-top:1px solid var(--border)}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.step{
  background:var(--card);border:1px solid var(--border);
  border-radius:14px;padding:16px;text-align:left
}
.step span{
  display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;
  background:var(--accent);color:#111;font-weight:700;margin-bottom:8px
}

.chips{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
}
.chip{
  border:1px solid var(--accent);color:var(--accent);
  padding:10px 14px;border-radius:999px;font-size:1rem
}

/* =========================
   FAQs (acordeón)
   ========================= */
details{
  border:1px solid var(--border);border-radius:12px;margin:10px 0;background:var(--card);
  text-align:left;
}
details[open]{background:#223244}
summary{
  list-style:none;cursor:pointer;padding:14px 16px;position:relative;font-weight:600;
}
summary::-webkit-details-marker{display:none}
details summary::after{
  content:"+";position:absolute;right:14px;top:14px;font-weight:700;opacity:.8
}
details[open] summary::after{content:"–"}
details > p{padding:0 16px 14px 16px;margin:0;color:var(--text)}

/* =========================
   Portfolio
   ========================= */
.portfolio-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:16px;
}

.p-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:14px;
  overflow:hidden;
  text-align:left;
  display:flex;
  flex-direction:column;
  transition:transform .15s ease, box-shadow .15s ease;
}
.p-card:hover{ transform:translateY(-2px); box-shadow:0 10px 20px rgba(0,0,0,.22) }

.p-thumb{
  aspect-ratio:1/1;
  overflow:hidden;
  background:#0f1720;
}
.p-thumb img{
  width:100%;height:100%;object-fit:cover;
  display:block;transition:transform .35s ease;
}
.p-card:hover .p-thumb img{transform:scale(1.04)}

.p-body{padding:12px 14px;text-align:left}
.p-body h3{margin:0 0 6px;font-size:18px;color:#f3e8c0}
.p-body p{margin:0;color:var(--muted)}

/* =========================
   Formularios
   ========================= */
input, textarea, select {
  font-size: 1.05rem;
  line-height: 1.4;
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: .9;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,169,106,.25);
}

form.card input,
form.card textarea {
  padding: 12px;
  border-width: 1px;
}

/* =========================
   WhatsApp flotante
   ========================= */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #25d366;
  color: #fff;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 28px;
  box-shadow: 0 4px 12px #0006;
  z-index: 999;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
}
.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 16px #0008;
}