:root{
  --black:#0b0b0b;
  --black2:#111111;
  --gold:#C6A85A;
  --offwhite:#F5F3EE;
  --text:#111111;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Montserrat',sans-serif;
  background:var(--offwhite);
  color:var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.container{width:90%;max-width:1100px;margin:auto;}

/* ================= HEADER ================= */

.header{
  position: sticky;
  top:0;
  z-index:50;
  background:rgba(10,10,10,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(198,168,90,.18);
  padding:16px 0;
  transition:.3s ease;
}
.header.is-scrolled{
  background:rgba(0,0,0,.98);
  padding:12px 0;
  border-bottom:1px solid rgba(198,168,90,.25);
}
.header-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
}
.brand-logo{
  width:165px;
  height:auto;
  display:block;
  transition:.3s ease;
}
.header.is-scrolled .brand-logo{ width:150px; }

.nav{
  display:flex;
  align-items:center;
}
.nav a{
  color:white;
  text-decoration:none;
  margin-left:20px;
  font-size:14px;
  letter-spacing:.04em;
  opacity:.92;
  transition: opacity .18s ease, transform .18s ease, color .18s ease;
}
.nav a:hover{
  opacity:1;
  transform: translateY(-1px);
  color: rgba(198,168,90,1);
}
.nav-wa{
  display:flex;
  align-items:center;
  justify-content:center;
  margin-left:20px;
  color: rgba(198,168,90,.9);
  transition: transform .2s ease, color .2s ease;
}
.nav-wa:hover{
  transform: translateY(-2px);
  color: rgba(198,168,90,1);
}

/* ================= HERO (MÁRMOL) ================= */

.hero{
  position: relative;
  overflow: hidden;

  background:
    linear-gradient(rgba(0,0,0,.76), rgba(0,0,0,.84)),
    url("../img/marmol-negro.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  padding:120px 0;
  text-align:center;
  color:white;
  border-bottom: 1px solid rgba(198,168,90,.12);
}
.hero::before{
  content:"";
  position:absolute;
  inset:-40%;
  background:
    radial-gradient(closest-side at 25% 35%, rgba(198,168,90,.16), transparent 62%),
    radial-gradient(closest-side at 75% 65%, rgba(198,168,90,.10), transparent 65%);
  filter: blur(18px);
  opacity:.9;
  animation: glowShift 8s ease-in-out infinite alternate;
  pointer-events:none;
}
@keyframes glowShift{
  from{ transform: translate3d(-1.5%, -1%, 0) scale(1); }
  to  { transform: translate3d(1.5%, 1%, 0) scale(1.03); }
}
.hero-content{ position:relative; z-index:2; }

.brand-title{
  position:relative;
  display:inline-block;
  font-family:'Cormorant Garamond',serif;
  font-size:64px;
  letter-spacing:6px;
  animation:fadeUp .8s ease both;
}
.gold-line{
  display:block;
  height:1px;
  width:0;
  margin:18px auto 0 auto;
  background: linear-gradient(90deg, transparent, rgba(198,168,90,.85), transparent);
  animation: lineAppear 1.1s cubic-bezier(.16,.8,.3,1) forwards;
  animation-delay: .55s;
}
@keyframes lineAppear{
  from{ width:0; opacity:0; }
  to{ width:180px; opacity:1; }
}

.hero h2{
  margin:10px 0;
  letter-spacing:4px;
  opacity:.92;
  animation:fadeUp .8s ease .1s both;
}
.tagline{
  margin-bottom:15px;
  font-size:18px;
  opacity:.96;
  animation:fadeUp .8s ease .2s both;
}
.lead{
  max-width:650px;
  margin:0 auto 10px auto;
  opacity:.86;
  animation:fadeUp .8s ease .3s both;
}
.seo-line{
  font-size:14px;
  margin: 10px auto 10px auto;
  opacity:.75;
  max-width: 820px;
}

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

.btn-primary{
  background:var(--gold);
  padding:14px 28px;
  border-radius:30px;
  text-decoration:none;
  font-weight:600;
  color:black;
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
  animation:fadeUp .8s ease .4s both;
}
.btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 18px 40px rgba(0,0,0,.26);
  filter: brightness(1.03);
}
.btn-primary--small{
  display:inline-block;
  margin-top:18px;
  padding:12px 18px;
  border-radius: 24px;
  animation:none;
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:14px 22px;
  border-radius:30px;
  border:1px solid rgba(245,243,238,.32);
  color: rgba(245,243,238,.92);
  text-decoration:none;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
  animation:fadeUp .8s ease .45s both;
}
.btn-ghost:hover{
  transform: translateY(-2px);
  background: rgba(255,255,255,.04);
  border-color: rgba(198,168,90,.22);
}

.consulta-guia{
  margin-top:18px;
  font-size:14px;
  opacity:.75;
  line-height:1.6;
}

/* ================= SECCIONES ================= */

.section{padding:70px 0;}
.section h3{
  text-align:center;
  font-family:'Cormorant Garamond',serif;
  font-size:36px;
  margin-bottom:40px;
}
.light{background:var(--offwhite); color: var(--text);}
.dark{background:var(--black2); color:white;}

.contact{text-align:center;}

/* ================= GRIDS / CARDS ================= */

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:20px;
}

.card{
  background:white;
  padding:25px;
  border-radius:14px;
  box-shadow:0 10px 25px rgba(0,0,0,.08);
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:0 18px 44px rgba(0,0,0,.12);
}
.card h4{margin-bottom:10px;}
.card p{opacity:.86; line-height:1.6;}

.dark .card{
  background:#151515;
  color:white;
  box-shadow:0 10px 26px rgba(0,0,0,.28);
}

.card-link{
  text-decoration:none;
  color:inherit;
  display:block;
}
.card-link:hover{
  transform:translateY(-6px);
  box-shadow:0 25px 55px rgba(0,0,0,.18);
}

/* ================= STEPS ================= */

.steps{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:20px;
  text-align:center;
}
.step{
  padding:20px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:12px;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
  background: rgba(255,255,255,.02);
}
.step:hover{
  transform: translateY(-3px);
  background: rgba(255,255,255,.05);
  border-color: rgba(198,168,90,.22);
}

/* ================= ABOUT ================= */

.about-wrapper{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:60px;
  flex-wrap:wrap;
}
.about-text{
  flex:1;
  min-width:320px;
}
.about-text p{
  margin-bottom:18px;
  line-height:1.7;
  color:#444;
}

.about-image{
  flex:1;
  min-width:280px;
  position:relative;
  display:flex;
  justify-content:center;
}
.about-image::before{
  content:"";
  position:absolute;
  left:-25px;
  top:10%;
  height:80%;
  width:2px;
  background:linear-gradient(180deg, transparent, rgba(198,168,90,.9), transparent);
}
.about-image img{
  max-width:360px;
  width:100%;
  border-radius:10px;
  filter:grayscale(100%) contrast(105%);
  box-shadow:0 25px 60px rgba(0,0,0,.18);
  transition:all .4s ease;
}
.about-image img:hover{
  transform:translateY(-6px);
  filter:grayscale(95%) contrast(110%);
}

/* ================= FOOTER ================= */

.footer{
  background:#0a0a0a;
  color:#999;
  text-align:center;
  padding:20px 0;
}

/* ================= WHATSAPP FLOAT ================= */

.wa-float{
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 100;

  width: 60px;
  height: 60px;

  background: #111111;
  border-radius: 50%;
  display:flex;
  align-items:center;
  justify-content:center;

  border: 1px solid rgba(198,168,90,.7);
  box-shadow: 0 12px 35px rgba(0,0,0,.35);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.wa-float:hover{
  transform: translateY(-4px);
  box-shadow: 0 22px 45px rgba(0,0,0,.45);
  border-color: rgba(198,168,90,1);
}

/* ================= ANIMACIONES ================= */

@keyframes fadeUp{
  from{opacity:0;transform:translateY(18px);}
  to{opacity:1;transform:translateY(0);}
}
.reveal{
  opacity:0;
  transform:translateY(18px);
  transition: opacity .75s ease, transform .75s ease;
}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}

@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .hero *{animation:none !important;}
  .hero::before{animation:none !important;}
  *{scroll-behavior:auto;}
}

/* Responsive */
@media (max-width: 900px){
  .brand-title{font-size:46px;}
}
@media (max-width: 768px){
  .nav{display:none;}
  .hero{padding:92px 0;}
  .hero-actions a{width:100%; max-width: 360px;}
  .about-wrapper{flex-direction:column; text-align:center;}
  .about-image::before{display:none;}
}