/* ===========================================================
   SERVICONFORT — Sistema de diseño
   Paleta tomada del logo: azul noche (placa del nombre),
   oro/oliva (anillos), llama roja-naranja (ícono).
   Concepto: "el confort empieza con el fuego" — calor de hogar,
   no especificaciones de producto.
=========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Public+Sans:wght@400;500;600;700&display=swap');

:root{
  --navy-950:#0d1338;
  --navy-900:#131a4a;
  --navy-800:#1c2568;
  --navy-700:#2a3480;
  --gold:#ab9a4e;
  --gold-soft:#d8cd9a;
  --flame-1:#e14324;
  --flame-2:#f5a83b;
  --paper:#f2eee2;
  --paper-2:#e9e3d2;
  --ink:#15161a;
  --ink-soft:#53544f;
  --white:#ffffff;
  --whatsapp:#25d366;

  --font-display: 'Fraunces', serif;
  --font-body: 'Public Sans', sans-serif;

  --container: 1180px;
  --radius: 14px;
  --shadow-soft: 0 20px 50px -25px rgba(13,19,56,.45);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth; overflow-x:hidden; width:100%;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  width:100%;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  margin:0 0 .5em;
  line-height:1.12;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--navy-950);
}
p{margin:0 0 1em;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  font-family:var(--font-body);
  font-weight:700;
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--flame-1);
  margin-bottom:14px;
}

/* ---------- Flame mark (signature element) ---------- */
.flame-mark{
  width:16px;height:16px;flex:none;
  display:inline-block;
}
.flame-mark svg{width:100%;height:100%;display:block;}
@keyframes flicker{
  0%,100%{ transform:scale(1) translateY(0); opacity:1; }
  50%{ transform:scale(1.08) translateY(-1px); opacity:.85; }
}
@media (prefers-reduced-motion: no-preference){
  .flame-mark svg{ animation: flicker 2.4s ease-in-out infinite; transform-origin:50% 85%; }
}

.divider-flame{
  display:flex;align-items:center;gap:14px;
  margin:0 0 28px;
}
.divider-flame::after{
  content:"";
  height:1px;flex:1;
  background:linear-gradient(90deg, var(--gold) 0%, transparent 100%);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-body);
  font-weight:700;
  font-size:.95rem;
  padding:14px 26px;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-2px); }
.btn-flame{
  background:linear-gradient(120deg, var(--flame-1), var(--flame-2));
  color:var(--white);
  box-shadow:0 12px 30px -12px rgba(225,67,36,.55);
}
.btn-flame:hover{ box-shadow:0 16px 34px -12px rgba(225,67,36,.7); }
.btn-outline{
  background:transparent;
  border-color:rgba(255,255,255,.5);
  color:var(--white);
}
.btn-outline:hover{ background:rgba(255,255,255,.1); }
.btn-outline-dark{
  background:transparent;
  border-color:rgba(21,22,26,.25);
  color:var(--navy-950);
}
.btn-outline-dark:hover{ background:rgba(21,22,26,.06); }
.btn-whatsapp{
  background:var(--whatsapp);
  color:var(--white);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(13,19,56,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;
  min-height:70px;
  padding-top:10px; padding-bottom:10px;
  gap:14px;
  min-width:0;
  flex-wrap:wrap;
}
.brand{ display:flex; flex-direction:column; align-items:flex-start; gap:2px; min-width:0; overflow:hidden; }
.brand-mark{ height:26px; width:auto; flex:none; }
.brand-tagline{
  font-family:var(--font-body);
  font-size:.5rem;
  letter-spacing:.05em;
  text-transform:uppercase;
  color:var(--gold-soft);
  font-weight:700;
  white-space:nowrap;
}

.main-nav{ display:flex; align-items:center; gap:18px; flex-wrap:wrap; }
.main-nav a{
  color:rgba(255,255,255,.82);
  font-size:.9rem;
  font-weight:600;
  position:relative;
  padding:6px 0;
}
.main-nav a:hover{ color:var(--white); }
.main-nav .has-dropdown{ position:relative; }
.dropdown{
  position:absolute; top:100%; left:50%; transform:translateX(-50%);
  background:var(--white);
  border-radius:12px;
  box-shadow:var(--shadow-soft);
  padding:10px;
  min-width:240px;
  display:grid;
  gap:2px;
  opacity:0; visibility:hidden; translate:0 8px;
  transition:.18s ease;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown{
  opacity:1; visibility:visible; translate:0 0;
}
.dropdown a{
  color:var(--ink);
  font-size:.85rem;
  font-weight:600;
  padding:10px 12px;
  border-radius:8px;
  display:block;
}
.dropdown a:hover{ background:var(--paper); color:var(--flame-1); }

.header-actions{ display:flex; align-items:center; gap:14px; flex:none; }
.header-phone{
  color:var(--white);
  font-size:.85rem;
  font-weight:600;
  display:flex; align-items:center; gap:8px;
}
.header-phone svg{ width:16px;height:16px;flex:none; }

.nav-toggle{
  display:none;
  background:none;border:none;cursor:pointer;
  width:40px;height:40px;
  align-items:center;justify-content:center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:"";
  display:block;
  width:22px;height:2px;
  background:var(--white);
  position:relative;
  transition:.2s;
}
.nav-toggle span::before{ position:absolute; top:-7px; }
.nav-toggle span::after{ position:absolute; top:7px; }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;align-items:flex-end;
  color:var(--white);
  overflow:hidden;
}
.hero-media{ position:absolute; top:0; right:0; bottom:0; left:0; z-index:0; }
.hero-media img{ width:100%;height:100%;object-fit:cover; }
.hero-media::after{
  content:"";
  position:absolute; top:0; right:0; bottom:0; left:0;
  background: linear-gradient(180deg, rgba(10,14,42,0) 60%, rgba(9,13,38,.55) 100%);
}
.hero-content{
  position:relative; z-index:1;
  padding-bottom:80px;
  max-width:760px;
}
.hero h1{
  color:var(--white);
  font-size:clamp(2.4rem, 5vw, 4rem);
  margin-bottom:.35em;
  text-shadow: 0 4px 24px rgba(0,0,0,.7), 0 2px 8px rgba(0,0,0,.6);
}
.hero h1 em{
  font-style:italic;
  color:var(--gold-soft);
  filter:drop-shadow(0 2px 10px rgba(0,0,0,.5));
}
.hero p.lead{
  font-size:1.15rem;
  color:rgba(255,255,255,.92);
  max-width:520px;
  text-shadow: 0 2px 12px rgba(0,0,0,.75);
}
.hero-content .eyebrow{
  color:var(--white);
  text-shadow: 0 2px 10px rgba(0,0,0,.85), 0 1px 3px rgba(0,0,0,.9);
}
.hero-content .eyebrow .flame-mark{ filter:drop-shadow(0 1px 4px rgba(0,0,0,.7)); }
.hero-ctas{ display:flex; gap:16px; flex-wrap:wrap; margin-top:28px; }

/* ---------- Trust strip ---------- */
.trust-strip{
  background:var(--navy-950);
  color:var(--white);
  padding:18px 0;
}
.trust-strip .container{
  display:flex; flex-wrap:wrap; gap:10px 32px;
  justify-content:space-between;
}
.trust-item{
  display:flex; align-items:center; gap:10px;
  font-size:.86rem;
  color:rgba(255,255,255,.82);
  font-weight:500;
  flex:0 0 auto;
  white-space:nowrap;
}
.trust-item strong{
  font-family:var(--font-body);
  font-size:.86rem;
  color:var(--gold-soft);
  font-weight:700;
}
.trust-item .flame-mark{ flex:none; width:15px; height:15px; }

/* ---------- Sections ---------- */
section{ padding:96px 0; }
.section-head{ max-width:640px; margin-bottom:52px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head p{ color:var(--ink-soft); font-size:1.05rem; }

/* ---------- Category grid ---------- */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:22px;
}
.cat-card{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  aspect-ratio:4/5;
  display:flex;align-items:flex-end;
  box-shadow:var(--shadow-soft);
  transition:transform .3s ease;
}
.cat-card:hover{ transform:translateY(-6px); }
.cat-card img{
  position:absolute; top:0; right:0; bottom:0; left:0;
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.cat-card:hover img{ transform:scale(1.06); }
.cat-card::before{
  content:"";
  position:absolute; top:0; right:0; bottom:0; left:0;
  background:linear-gradient(180deg, rgba(13,19,56,0) 35%, rgba(9,13,38,.92) 100%);
  z-index:1;
}
.cat-card-body{
  position:relative; z-index:2;
  padding:22px;
  color:var(--white);
}
.cat-card-body .eyebrow{ color:var(--gold-soft); }
.cat-card-body h3{ color:var(--white); font-size:1.3rem; margin-bottom:6px; }
.cat-card-body p{ color:rgba(255,255,255,.8); font-size:.88rem; margin-bottom:0; }
.cat-card-body .arrow{
  display:inline-flex; align-items:center; gap:6px;
  margin-top:12px; font-size:.8rem; font-weight:700;
  color:var(--flame-2);
}

/* ---------- Proof / why us ---------- */
.proof-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
}
.proof-item{ }
.proof-item .flame-mark{ margin-bottom:16px; }
.proof-item h4{ font-size:1.05rem; margin-bottom:8px; }
.proof-item p{ color:var(--ink-soft); font-size:.92rem; margin:0; }

/* ---------- Split (quienes somos summary) ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.split img{ border-radius:var(--radius); box-shadow:var(--shadow-soft); }
.about-collage{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.about-collage img{
  width:100%;
  aspect-ratio:1/1;
  object-fit:cover;
  border-radius:var(--radius);
  box-shadow:var(--shadow-soft);
}
.split .section-head{ margin-bottom:22px; }
.split p{ color:var(--ink-soft); }

/* ---------- CTA banner ---------- */
.cta-banner{
  background:var(--navy-950);
  background-image:
    radial-gradient(circle at 15% 20%, rgba(245,168,59,.16), transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(225,67,36,.16), transparent 45%);
  color:var(--white);
  text-align:center;
}
.cta-banner h2{ color:var(--white); }
.cta-banner p{ color:rgba(255,255,255,.78); max-width:520px; margin-left:auto;margin-right:auto; }
.cta-banner .btn-flame{ margin-top:8px; }

/* ---------- Footer ---------- */
footer{
  background:var(--navy-900);
  color:rgba(255,255,255,.75);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.2fr 1.4fr 1fr;
  gap:40px;
  margin-bottom:48px;
}
.footer-lines-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  column-gap:20px;
}
.footer-brand .brand{ margin-bottom:14px; }
.footer-brand p{ font-size:.88rem; color:rgba(255,255,255,.6); max-width:280px; }
.footer-col h5{
  color:var(--white);
  font-family:var(--font-body);
  font-size:.78rem;
  letter-spacing:.1em;
  text-transform:uppercase;
  margin-bottom:16px;
  font-weight:700;
}
.footer-col a{
  display:block;
  color:rgba(255,255,255,.7);
  font-size:.88rem;
  margin-bottom:10px;
}
.footer-col a:hover{ color:var(--gold-soft); }
.social-row{ display:flex; gap:12px; margin-top:16px; }
.social-row a{
  width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:0;
}
.social-row a:hover{ background:rgba(255,255,255,.16); }
.social-row svg{ width:17px;height:17px; }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:.8rem; color:rgba(255,255,255,.5);
}

/* ---------- Floating WhatsApp ---------- */
.wa-float{
  position:fixed; right:22px; bottom:22px; z-index:200;
  width:60px;height:60px;border-radius:50%;
  background:var(--whatsapp);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 30px -10px rgba(37,211,102,.6);
  transition:transform .2s ease;
}
.wa-float:hover{ transform:scale(1.08); }
.wa-float svg{ width:30px;height:30px; }
@keyframes wa-pulse{
  0%{ box-shadow:0 0 0 0 rgba(37,211,102,.55); }
  70%{ box-shadow:0 0 0 16px rgba(37,211,102,0); }
  100%{ box-shadow:0 0 0 0 rgba(37,211,102,0); }
}
@media (prefers-reduced-motion:no-preference){
  .wa-float::before{
    content:"";
    position:absolute; top:0; right:0; bottom:0; left:0; border-radius:50%;
    animation:wa-pulse 2.6s ease-out infinite;
  }
}

/* ---------- Inner page hero (categorías) ---------- */
.page-hero{
  position:relative;
  min-height:56vh;
  display:flex; align-items:flex-end;
  color:var(--white);
  overflow:hidden;
}
.page-hero .hero-content{ padding-bottom:56px; max-width:680px; }
.page-hero h1{ color:var(--white); font-size:clamp(2rem,4.2vw,3.2rem); }
.breadcrumb{
  display:flex; gap:8px; align-items:center;
  font-size:.82rem; color:rgba(255,255,255,.65);
  margin-bottom:18px;
}
.breadcrumb a:hover{ color:var(--white); }

.intro-block{ max-width:760px; }
.intro-block p{ font-size:1.1rem; color:var(--ink-soft); }

.gallery-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.gallery-grid img{
  border-radius:var(--radius);
  aspect-ratio:4/3;
  object-fit:cover;
  box-shadow:var(--shadow-soft);
  transition:transform .35s ease;
}
.gallery-grid a:hover img{ transform:scale(1.02); }
.gallery-grid .tall{ aspect-ratio:4/5; grid-row:span 2; }

.checklist{ display:grid; gap:16px; margin-top:8px; }
.checklist li{
  list-style:none;
  display:flex; gap:14px; align-items:flex-start;
  font-size:.98rem; color:var(--ink-soft);
}
.checklist li .flame-mark{ margin-top:4px; }
.checklist{ padding:0; }

.category-nav{
  background:var(--paper-2);
  padding:20px 0;
}
.category-nav .container{
  display:flex; gap:10px; overflow-x:auto;
  scrollbar-width:none;
}
.category-nav .container::-webkit-scrollbar{ display:none; }
.category-nav a{
  flex:none;
  font-size:.82rem; font-weight:700;
  padding:9px 16px;
  border-radius:999px;
  background:var(--white);
  color:var(--navy-950);
  border:1px solid rgba(21,22,26,.1);
}
.category-nav a.active{
  background:var(--navy-950);
  color:var(--white);
  border-color:var(--navy-950);
}

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .header-actions .header-phone{ display:none; }
  .nav-toggle{ display:flex; }
  .brand-tagline{ font-size:.46rem; }
  .main-nav{
    position:fixed; top:70px; left:0; right:0;
    height:calc(100vh - 70px);
    min-height:300px;
    z-index:150;
    background:var(--navy-950);
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:20px 24px;
    transform:translateX(100%);
    transition:transform .25s ease;
    overflow-y:auto;
  }
  .main-nav.nav-open{ transform:translateX(0); display:flex; }
  .main-nav a{
    width:100%;
    padding:16px 0;
    border-bottom:1px solid rgba(255,255,255,.08);
    font-size:1rem;
  }
  .has-dropdown .dropdown{
    position:static; transform:none; opacity:1; visibility:visible;
    display:none;
    box-shadow:none; background:rgba(255,255,255,.04);
    margin-top:4px;
  }
  .has-dropdown.dd-open .dropdown{ display:grid; }
  .dropdown a{ color:rgba(255,255,255,.85); border-bottom:none; padding:10px 12px; }
  .dropdown a:hover{ background:rgba(255,255,255,.06); color:var(--gold-soft); }
  .proof-grid{ grid-template-columns:repeat(2,1fr); }
  .cat-grid{ grid-template-columns:repeat(2,1fr); }
  .split{ grid-template-columns:1fr; gap:32px; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .gallery-grid{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width: 600px){
  section{ padding:64px 0; }
  .cat-grid{ grid-template-columns:1fr; }
  .proof-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; gap:28px; }
  .gallery-grid{ grid-template-columns:1fr; }
  .hero{ min-height:92vh; }
  .trust-strip .container{ flex-direction:column; align-items:flex-start; }
  .brand-mark{ height:22px; }
  .header-actions{ gap:8px; }
  .header-actions .btn-flame{ padding:10px 14px; font-size:.8rem; }
}