/* ============================================================
   PISOS12 — Pulido y Restauración de Pisos
   Design tokens: onyx black + marble white/grey + shine gold + terracotta
   Signature: marble-vein hero art + a diagonal "shine sweep" motion,
   plus generated material swatches (mármol / mosaico / hormigón / calcáreo)
   Type: Playfair Display (display) / Manrope (body) / DM Mono (data)
   ============================================================ */

:root{
  --onyx: #17181B;
  --onyx-2: #201F1C;
  --marble-white: #F6F4EF;
  --marble-alt: #EFEBE2;
  --marble-grey: #B9B4A9;
  --shine-gold: #C9A44C;
  --terracotta: #A54A2E;
  --ink: #201F1C;

  --font-display: 'Playfair Display', serif;
  --font-body: 'Manrope', sans-serif;
  --font-mono: 'DM Mono', monospace;

  --container: 1200px;
  --radius-s: 6px;
  --radius-m: 10px;
  --ease: cubic-bezier(.16,.84,.44,1);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body{
  margin:0;
  background: var(--marble-white);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display:block; }
a{ color: inherit; text-decoration: none; }
button{ font-family: inherit; cursor: pointer; }
ul{ list-style: none; margin:0; padding:0; }

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

h1,h2,h3{
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.12;
  margin: 0 0 0.5em;
  letter-spacing: -0.005em;
  font-weight: 600;
}
h2{ font-size: clamp(2rem, 4vw, 2.8rem); }
h3{ font-size: 1.2rem; font-weight: 600; }
p{ margin: 0 0 1em; }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--terracotta);
  font-weight: 500;
  margin: 0 0 0.9em;
  display: block;
}
.eyebrow-light{ color: var(--shine-gold); }

/* ---------- buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content:center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 26px;
  border-radius: var(--radius-s);
  border: 1.5px solid transparent;
  transition: transform .25s var(--ease), background-color .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn:active{ transform: translateY(0); }
.btn-small{ padding: 9px 16px; font-size: 0.85rem; }
.btn-large{ padding: 16px 30px; font-size: 1rem; }
.btn-block{ width: 100%; margin-top: 18px; }

.btn-gold{ background: var(--shine-gold); color: var(--onyx); }
.btn-gold:hover{ background: #ddb85c; }

.btn-outline-light{ border-color: rgba(255,255,255,.32); color:#fff; }
.btn-outline-light:hover{ border-color: var(--shine-gold); color: var(--shine-gold); }

.btn-whatsapp{ background:#25D366; color:#06331d; }
.btn-whatsapp:hover{ background:#2fe375; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 100;
  background: rgba(23,24,27,.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(201,164,76,.18);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height: 78px;
}
.logo-link img{ height: 42px; width:auto; }

.main-nav{ display:flex; gap: 28px; }
.main-nav a{
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,.72);
  position: relative;
  padding: 4px 0;
  transition: color .2s;
}
.main-nav a::after{
  content:'';
  position:absolute; left:0; bottom:-2px;
  width:0; height:1.5px;
  background: var(--shine-gold);
  transition: width .25s var(--ease);
}
.main-nav a:hover{ color:#fff; }
.main-nav a:hover::after{ width:100%; }

.header-actions{ display:flex; align-items:center; gap: 18px; }

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width: 36px; height: 36px;
  background:none; border:none;
}
.nav-toggle span{
  display:block; height:2px; width:100%;
  background:#fff; border-radius:2px;
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}
.nav-toggle.open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   REVEAL ON SCROLL
   ============================================================ */
.reveal{ opacity:0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in-view{ opacity:1; transform: translateY(0); }

/* ============================================================
   HERO
   ============================================================ */
.hero{ position:relative; overflow:hidden; padding: 150px 0 90px; }
.hero-bg{ position:absolute; inset:0; z-index:0; }
.veins{ width:100%; height:100%; }
.vein{ stroke-dasharray: 2200; stroke-dashoffset: 2200; opacity:.55; animation: veinDraw 2.4s var(--ease) forwards; }
.v1{ animation-delay:.1s; } .v2{ animation-delay:.25s; opacity:.35; } .v3{ animation-delay:.15s; } .v4{ animation-delay:.3s; opacity:.4; }
@keyframes veinDraw{ to{ stroke-dashoffset:0; } }

.shine-sweep{
  position:absolute; top:-20%; left:-30%; width:60%; height:140%;
  background: linear-gradient(115deg, transparent 40%, rgba(255,255,255,.06) 48%, rgba(255,255,255,.12) 50%, rgba(255,255,255,.06) 52%, transparent 60%);
  animation: sweep 6s ease-in-out infinite;
}
@keyframes sweep{ 0%{ transform: translateX(-20%);} 50%{ transform: translateX(180%);} 100%{ transform: translateX(180%);} }

.hero-inner{ position:relative; z-index:1; max-width: 720px; }
.hero h1{ color:#fff; font-size: clamp(2.6rem, 5.6vw, 4.2rem); }
.hero-sub{ color: rgba(255,255,255,.72); font-size: 1.1rem; max-width: 54ch; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; margin: 1.6em 0 1.6em; }

/* ============================================================
   ABOUT
   ============================================================ */
.about{ padding: 100px 0; }
.about-grid{
  display:grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items:center;
}
.about-media img{ width:100%; height:auto; display:block; border-radius: var(--radius-m); }
.about-copy p{ color:#4a463f; max-width: 54ch; }

.rubros-list{ display:flex; flex-wrap:wrap; gap: 10px; margin-top: 1.4em; }
.rubros-list li{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink);
  border: 1px solid var(--marble-grey);
  border-radius: 999px;
  padding: 7px 16px;
}

/* ============================================================
   MATERIALS
   ============================================================ */
.materials{ padding: 90px 0; background: var(--marble-alt); }
.materials h2{ max-width: 18ch; }

.materials-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 46px;
}
.material-card{
  background:#fff;
  border-radius: var(--radius-m);
  overflow:hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.material-card:hover{ transform: translateY(-5px); box-shadow: 0 18px 34px rgba(23,24,27,.1); }
.material-card h3{ padding: 18px 20px 4px; font-size: 1.1rem; }
.material-card p{ padding: 0 20px 22px; font-size: 0.88rem; color:#5c584f; margin:0; }

.material-swatch{ width:100%; height: 120px; }

.swatch-marmol{
  background:
    linear-gradient(120deg, transparent 40%, rgba(201,164,76,.5) 41%, transparent 43%),
    linear-gradient(35deg, transparent 60%, rgba(185,180,169,.6) 61%, transparent 63%),
    linear-gradient(100deg, transparent 20%, rgba(201,164,76,.35) 21%, transparent 23%),
    linear-gradient(160deg, #f4f2ec, #e7e3d8);
}
.swatch-mosaico{
  background:
    linear-gradient(45deg, var(--terracotta) 25%, transparent 25%) -10px 0,
    linear-gradient(-45deg, var(--terracotta) 25%, transparent 25%) -10px 0,
    linear-gradient(45deg, transparent 75%, var(--onyx) 75%),
    linear-gradient(-45deg, transparent 75%, var(--onyx) 75%);
  background-size: 40px 40px;
  background-color: #ece5d4;
  background-position: 0 0, 0 0, 0 0, 0 0;
  opacity: .92;
}
.swatch-hormigon{
  background:
    radial-gradient(circle at 20% 30%, rgba(0,0,0,.06) 0 2px, transparent 3px),
    radial-gradient(circle at 60% 70%, rgba(0,0,0,.05) 0 2px, transparent 3px),
    radial-gradient(circle at 80% 20%, rgba(0,0,0,.06) 0 2px, transparent 3px),
    radial-gradient(circle at 40% 85%, rgba(0,0,0,.05) 0 2px, transparent 3px),
    radial-gradient(circle at 90% 60%, rgba(0,0,0,.05) 0 2px, transparent 3px),
    linear-gradient(160deg, #c9c6bf, #a9a69f);
  background-size: 80px 80px, 90px 90px, 70px 70px, 85px 85px, 95px 95px, 100% 100%;
}
.swatch-calcareo{
  background:
    radial-gradient(circle at 25% 35%, rgba(140,110,70,.18) 0 3px, transparent 4px),
    radial-gradient(circle at 65% 60%, rgba(140,110,70,.15) 0 2px, transparent 3px),
    radial-gradient(circle at 80% 25%, rgba(140,110,70,.16) 0 3px, transparent 4px),
    radial-gradient(circle at 45% 80%, rgba(140,110,70,.14) 0 2px, transparent 3px),
    linear-gradient(160deg, #ece3cd, #ddd0af);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services{ padding: 100px 0; }
.services h2{ max-width: 22ch; }
.services-lede{ color:#5c584f; max-width: 62ch; margin-top: -0.4em; }

.services-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 40px;
}
.service-item{
  border: 1px solid var(--marble-grey);
  border-radius: var(--radius-s);
  padding: 18px 20px;
  font-weight: 500;
  transition: border-color .25s var(--ease), background-color .25s var(--ease);
}
.service-item:hover{ border-color: var(--shine-gold); background: rgba(201,164,76,.06); }

/* ============================================================
   WORK GALLERY
   ============================================================ */
.work{ padding: 100px 0; }
.work h2{ max-width: 18ch; }

.work-filters{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin-top: 32px;
}
.filter-btn{
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--marble-grey);
  background: #fff;
  color: var(--ink);
  transition: border-color .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease);
}
.filter-btn:hover{ border-color: var(--shine-gold); }
.filter-btn.is-active{ background: var(--onyx); border-color: var(--onyx); color: #fff; }

.work-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 28px;
}
.work-item{
  position:relative;
  border:none; padding:0; background:none;
  border-radius: var(--radius-s);
  overflow:hidden;
  aspect-ratio: 1/1;
}
.work-item.is-hidden{ display:none; }
@keyframes workPopIn{ from{ opacity:0; transform: scale(.94); } to{ opacity:1; transform: scale(1); } }
.work-item.pop-in{ animation: workPopIn .35s var(--ease); }

.work-item img{ width:100%; height:100%; object-fit:cover; transition: transform .5s var(--ease); }
.work-item::after{
  content:'';
  position:absolute; inset:0;
  background: linear-gradient(115deg, transparent 40%, rgba(255,255,255,.35) 48%, rgba(255,255,255,.55) 50%, rgba(255,255,255,.35) 52%, transparent 60%);
  transform: translateX(-120%);
  transition: transform .6s ease;
}
.work-item:hover img{ transform: scale(1.06); }
.work-item:hover::after{ transform: translateX(120%); }

.no-results{
  margin-top: 40px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #8a8578;
  text-align: center;
}

.other-work{
  margin-top: 70px;
  padding-top: 44px;
  border-top: 1px solid rgba(32,31,28,.1);
}
.other-work-label{
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8a8578;
  margin: 0 0 18px;
}
.other-work-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

/* ============================================================
   CLIENTS
   ============================================================ */
.clients{ padding: 90px 0; background: var(--marble-alt); }
.clients h2{ max-width: 24ch; }
.clients-grid{
  display:grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 14px;
  margin-top: 40px;
}
.client-logo{
  background:#fff;
  border-radius: var(--radius-s);
  aspect-ratio: 1/1;
  display:flex; align-items:center; justify-content:center;
  padding: 14px;
}
.client-logo img{ width:100%; height:100%; object-fit:contain; }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials{ padding: 100px 0; background: var(--onyx); }
.testimonials h2{ color:#fff; max-width: 16ch; }
.testimonials-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 46px;
}
.testimonial-card{
  margin:0;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-m);
  padding: 26px 28px;
}
.testimonial-card p{
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  font-size: 1.08rem;
  color: rgba(255,255,255,.9);
  margin: 0 0 14px;
  line-height: 1.5;
}
.testimonial-card cite{
  font-family: var(--font-mono);
  font-style:normal;
  font-size: 0.76rem;
  color: var(--shine-gold);
  letter-spacing: 0.03em;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact{ padding: 100px 0 110px; }
.contact-grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items:start;
}
.contact-lede{ color:#5c584f; max-width: 48ch; }

.contact-quick{ display:flex; flex-direction:column; gap: 14px; margin-top: 1.6em; }
.contact-quick li{ font-size: 0.95rem; color:#3a362f; }
.contact-quick a{ font-weight:500; transition: color .2s; }
.contact-quick a:hover{ color: var(--terracotta); }
.contact-quick-label{
  display:inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-right: 10px;
}

.contact-form-card{
  background: var(--onyx);
  border-radius: var(--radius-m);
  padding: 32px;
}
.form-card-eyebrow{
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,.45);
  margin: 0 0 20px;
}
.contact-form{ display:flex; flex-direction:column; gap: 16px; }
.contact-form .form-row{ display:flex; flex-direction:column; gap:6px; }
.contact-form label{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
}
.contact-form label .opt{ text-transform:none; letter-spacing:0; color: rgba(255,255,255,.3); }
.contact-form input, .contact-form textarea{
  font-family: var(--font-body);
  font-size: 0.96rem;
  padding: 12px 14px;
  border: 1.5px solid rgba(255,255,255,.15);
  border-radius: var(--radius-s);
  background: rgba(255,255,255,.04);
  color:#fff;
  resize: vertical;
  transition: border-color .2s;
}
.contact-form input::placeholder, .contact-form textarea::placeholder{ color: rgba(255,255,255,.32); }
.contact-form input:focus, .contact-form textarea:focus{
  outline:none; border-color: var(--shine-gold);
}
.form-status{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--shine-gold);
  min-height: 1.2em;
  margin: 4px 0 0;
}
.form-status.error{ color:#e08a8a; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{ background: var(--onyx); padding: 40px 0; border-top: 1px solid rgba(201,164,76,.15); }
.footer-inner{ display:flex; align-items:center; justify-content:space-between; gap: 24px; flex-wrap:wrap; }
.footer-inner .logo-link img{ height: 36px; }
.footer-nav{ display:flex; gap: 24px; flex-wrap:wrap; }
.footer-nav a{
  font-family: var(--font-mono); font-size: 0.76rem; letter-spacing:0.05em; text-transform:uppercase;
  color: rgba(255,255,255,.55);
}
.footer-nav a:hover{ color: var(--shine-gold); }
.footer-meta{
  display:flex; flex-direction:column; align-items:flex-end; gap:4px;
  font-family: var(--font-mono); font-size: 0.72rem; color: rgba(255,255,255,.4);
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox{
  position:fixed; inset:0; z-index:1000;
  background: rgba(23,24,27,.94);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden;
  transition: opacity .3s var(--ease);
  padding: 40px;
}
.lightbox.open{ opacity:1; visibility:visible; }
.lightbox img{ max-width: min(90vw, 900px); max-height: 84vh; object-fit:contain; border-radius: var(--radius-s); }
.lightbox-close{
  position:absolute; top: 28px; right: 34px;
  background:none; border:none; color:#fff; font-size: 1.5rem;
}
.lightbox-nav{
  position:absolute; top:50%; transform: translateY(-50%);
  background:none; border:none; color:#fff;
  font-size: 2.6rem; line-height:1; padding: 10px 16px;
  transition: color .2s;
}
.lightbox-nav:hover{ color: var(--shine-gold); }
.lightbox-prev{ left: 8px; }
.lightbox-next{ right: 8px; }
@media (max-width: 640px){
  .lightbox-nav{ font-size: 2rem; padding: 8px 10px; }
}

/* ============================================================
   FLOATING WHATSAPP BUTTON
   ============================================================ */
.fab-whatsapp{
  position:fixed; bottom: 26px; right: 26px; z-index: 90;
  width: 58px; height: 58px; border-radius:50%;
  background: #25D366; color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 10px 26px rgba(0,0,0,.3);
  transition: transform .25s var(--ease);
}
.fab-whatsapp:hover{ transform: scale(1.08); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px){
  .about-grid{ grid-template-columns: 1fr; }
  .materials-grid{ grid-template-columns: repeat(2, 1fr); }
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
  .work-grid{ grid-template-columns: repeat(3, 1fr); }
  .clients-grid{ grid-template-columns: repeat(4, 1fr); }
  .testimonials-grid{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
}

@media (max-width: 720px){
  .main-nav{
    position:absolute; top:78px; left:0; right:0;
    background: var(--onyx);
    flex-direction:column; gap:0;
    max-height:0; overflow:hidden;
    transition: max-height .35s var(--ease);
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .main-nav.open{ max-height: 400px; }
  .main-nav a{ padding: 16px 28px; border-top:1px solid rgba(255,255,255,.06); }
  .nav-toggle{ display:flex; }
  .header-actions .btn-small{ display:none; }

  .services-grid{ grid-template-columns: 1fr; }
  .work-filters{ gap: 8px; }
  .filter-btn{ padding: 8px 14px; font-size: 0.76rem; }
  .work-grid{ grid-template-columns: repeat(2, 1fr); }
  .other-work-grid{ grid-template-columns: repeat(3, 1fr); }
  .clients-grid{ grid-template-columns: repeat(3, 1fr); }
  .footer-inner{ flex-direction:column; align-items:flex-start; }
  .footer-meta{ align-items:flex-start; }
}