/* ==========================================================================
   Consultas Gas - Hoja de estilos principal
   Paleta: Blanco + Azul Oscuro
   ========================================================================== */

:root{
  --azul-900:#06182f;
  --azul-800:#0a2540;
  --azul-700:#103463;
  --azul-600:#1a4b8c;
  --azul-500:#2563a6;
  --azul-300:#6ea0d6;
  --azul-100:#dbe7f5;
  --azul-50:#eef4fb;
  --blanco:#ffffff;
  --texto:#10243f;
  --texto-suave:#48607d;
  --linea:#dfe7f0;
  --ok:#16a34a;
  --warn:#d97706;
  --danger:#dc2626;
  --radio:14px;
  --radio-sm:10px;
  --sombra:0 10px 30px rgba(6,24,47,.10);
  --sombra-fuerte:0 18px 45px rgba(6,24,47,.18);
  --trans:all .25s ease;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  font-family:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;
  color:var(--texto);
  background:var(--blanco);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--azul-700);text-decoration:none;transition:var(--trans)}
a:hover{color:var(--azul-500)}
h1,h2,h3,h4{color:var(--azul-800);font-weight:700;line-height:1.25}
h1{font-size:clamp(2rem,4.4vw,3.4rem);letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:.5rem}
h3{font-size:1.25rem;margin-bottom:.4rem}
p{margin-bottom:.9rem;color:var(--texto-suave)}
ul{margin-left:1.1rem;color:var(--texto-suave)}

.container{width:min(1200px,92%);margin-inline:auto}
.section{padding:80px 0}
.section-sm{padding:48px 0}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--linea);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;
}
.logo{display:flex;align-items:center;gap:10px;color:var(--azul-800);font-weight:800;font-size:1.15rem}
.logo-mark{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--azul-700),var(--azul-500));
  display:grid;place-items:center;color:#fff;font-weight:900;
  box-shadow:var(--sombra);
}
.nav-menu{display:flex;gap:6px;align-items:center;list-style:none}
.nav-menu a{
  color:var(--azul-800);font-weight:600;font-size:.95rem;
  padding:8px 12px;border-radius:8px;
}
.nav-menu a:hover{background:var(--azul-50);color:var(--azul-700)}
.nav-menu a.active{background:var(--azul-800);color:#fff}
.btn-toggle{
  display:none;background:none;border:none;cursor:pointer;
  width:42px;height:42px;border-radius:10px;color:var(--azul-800);
}
.btn-toggle:hover{background:var(--azul-50)}

@media (max-width:900px){
  .nav-menu{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid var(--linea);
    padding:10px 4%;display:none;
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:14px;border-radius:8px}
  .btn-toggle{display:grid;place-items:center}
}

/* ===== Botones ===== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:999px;
  font-weight:700;font-size:.95rem;cursor:pointer;
  border:2px solid transparent;transition:var(--trans);
}
.btn-primary{background:var(--azul-800);color:#fff}
.btn-primary:hover{background:var(--azul-700);color:#fff;transform:translateY(-2px);box-shadow:var(--sombra)}
.btn-outline{background:transparent;color:var(--azul-800);border-color:var(--azul-800)}
.btn-outline:hover{background:var(--azul-800);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--azul-800);border-color:var(--linea)}
.btn-ghost:hover{border-color:var(--azul-700);color:var(--azul-700)}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#06182f 0%,#0a2540 55%,#103463 100%);
  color:#fff;padding:110px 0 100px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(800px 400px at 80% 0%, rgba(110,160,214,.25), transparent 60%),
    radial-gradient(600px 500px at 10% 100%, rgba(37,99,166,.35), transparent 60%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;position:relative;z-index:2}
.hero h1{color:#fff;margin-bottom:18px}
.hero p.lead{font-size:1.1rem;color:#cdd9eb;max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-img-wrap{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--sombra-fuerte);aspect-ratio:4/5;background:#000}
.hero-img-wrap img{width:100%;height:100%;object-fit:cover;animation:slowZoom 18s ease-in-out infinite alternate}
@keyframes slowZoom{from{transform:scale(1)}to{transform:scale(1.08)}}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
  margin-top:36px;padding-top:28px;border-top:1px solid rgba(255,255,255,.12);
}
.hero-stats div span{display:block;font-weight:800;color:#fff;font-size:1.4rem}
.hero-stats div small{color:#9fb6d5;font-size:.8rem}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}.hero{padding:80px 0 70px}}

/* ===== Tarjetas ===== */
.card{
  background:#fff;border:1px solid var(--linea);border-radius:var(--radio);
  padding:28px;transition:var(--trans);
}
.card:hover{border-color:var(--azul-300);box-shadow:var(--sombra);transform:translateY(-4px)}
.card .icon{
  width:54px;height:54px;border-radius:14px;
  background:linear-gradient(135deg,var(--azul-50),var(--azul-100));
  color:var(--azul-800);display:grid;place-items:center;
  margin-bottom:16px;
}
.card .icon svg{width:28px;height:28px}
.card h3{color:var(--azul-800);margin-bottom:8px}
.card p{font-size:.95rem;margin-bottom:14px}
.card-link{font-weight:700;color:var(--azul-700);font-size:.9rem}
.card-link::after{content:" →";transition:margin-left .25s}
.card-link:hover::after{margin-left:6px}

/* ===== Temas (cards especiales) ===== */
.topic-card{
  position:relative;overflow:hidden;border-radius:var(--radio);
  border:1px solid var(--linea);background:#fff;
  transition:var(--trans);
}
.topic-card:hover{transform:translateY(-6px);box-shadow:var(--sombra-fuerte);border-color:var(--azul-300)}
.topic-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--azul-50)}
.topic-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.topic-card:hover .thumb img{transform:scale(1.08)}
.topic-card .body{padding:22px}
.topic-card .badge{
  display:inline-block;font-size:.75rem;font-weight:700;
  background:var(--azul-50);color:var(--azul-700);
  padding:4px 10px;border-radius:999px;margin-bottom:10px;text-transform:uppercase;letter-spacing:.04em;
}

/* ===== Banner info del creador ===== */
.creator-banner{
  background:linear-gradient(135deg,var(--azul-900),var(--azul-700));
  color:#fff;padding:36px 0;position:relative;overflow:hidden;
}
.creator-banner::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(500px 200px at 90% 50%, rgba(110,160,214,.18), transparent 60%);
}
.creator-grid{
  display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center;position:relative;z-index:2;
}
.creator-avatar{
  width:84px;height:84px;border-radius:50%;
  background:linear-gradient(135deg,#fff,#cdd9eb);
  color:var(--azul-800);display:grid;place-items:center;
  font-weight:900;font-size:1.8rem;border:3px solid rgba(255,255,255,.2);
}
.creator-info h4{color:#fff;font-size:1.2rem;margin-bottom:4px}
.creator-info p{color:#cdd9eb;margin:0;font-size:.9rem}
.creator-info .small-grid{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px}
.creator-info .small-grid span{color:#fff;font-size:.85rem;display:flex;align-items:center;gap:6px}
.creator-info .small-grid svg{width:14px;height:14px;color:var(--azul-300)}
.creator-cta a.btn-outline{border-color:#fff;color:#fff}
.creator-cta a.btn-outline:hover{background:#fff;color:var(--azul-800)}
@media (max-width:780px){.creator-grid{grid-template-columns:1fr;text-align:center}.creator-avatar{margin:0 auto}.creator-cta{justify-self:center}}

/* ===== Footer ===== */
.site-footer{
  background:var(--azul-900);color:#cdd9eb;padding:60px 0 30px;
}
.site-footer h5{color:#fff;font-size:1rem;margin-bottom:16px;text-transform:uppercase;letter-spacing:.06em}
.site-footer a{color:#cdd9eb;font-size:.9rem}
.site-footer a:hover{color:#fff}
.site-footer ul{list-style:none;margin:0}
.site-footer li{margin-bottom:8px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;margin-bottom:40px}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;
  font-size:.82rem;color:#9fb6d5;
}
.foot-bottom a{color:#9fb6d5}
@media (max-width:780px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.foot-grid{grid-template-columns:1fr}}

/* ===== Banner de Cookies (horizontal, abajo, persistente) ===== */
.cookie-banner{
  position:fixed;left:0;right:0;bottom:0;z-index:100;
  background:#fff;border-top:1px solid var(--linea);
  box-shadow:0 -10px 30px rgba(6,24,47,.18);
  padding:18px 0;display:none;
  animation:slideUp .5s ease;
}
.cookie-banner.show{display:block}
.cookie-inner{
  width:min(1200px,92%);margin-inline:auto;
  display:grid;grid-template-columns:auto 1fr auto;gap:20px;align-items:center;
}
.cookie-icon{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(135deg,var(--azul-700),var(--azul-500));
  color:#fff;display:grid;place-items:center;flex-shrink:0;
}
.cookie-icon svg{width:28px;height:28px}
.cookie-text h4{color:var(--azul-800);font-size:1.05rem;margin-bottom:4px}
.cookie-text p{font-size:.88rem;color:var(--texto-suave);margin:0;line-height:1.5}
.cookie-text p a{color:var(--azul-700);text-decoration:underline}
.cookie-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.cookie-actions .btn{padding:11px 20px;font-size:.88rem;white-space:nowrap}
.cookie-actions .btn-ghost{background:transparent;border:1px solid var(--linea)}
@media (max-width:780px){
  .cookie-inner{grid-template-columns:1fr;text-align:center}
  .cookie-icon{margin:0 auto}
  .cookie-actions{justify-content:center}
}
@keyframes slideUp{from{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}

/* ===== Page header (interior) ===== */
.page-header{
  background:linear-gradient(135deg,var(--azul-900),var(--azul-700));
  color:#fff;padding:80px 0 60px;position:relative;overflow:hidden;
}
.page-header::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 300px at 80% 20%, rgba(110,160,214,.25), transparent 60%);
}
.page-header h1{color:#fff;position:relative}
.page-header p{color:#cdd9eb;font-size:1.1rem;max-width:680px;position:relative}
.breadcrumb{
  font-size:.85rem;color:#9fb6d5;margin-bottom:14px;position:relative;
}
.breadcrumb a{color:#9fb6d5}
.breadcrumb a:hover{color:#fff}

/* ===== Contenido artículos ===== */
.article{
  background:#fff;border-radius:var(--radio);padding:42px;
  border:1px solid var(--linea);
}
.article h2{margin-top:30px;margin-bottom:12px;padding-top:8px}
.article h3{margin-top:18px;margin-bottom:8px;color:var(--azul-700)}
.article p{color:var(--texto);font-size:1rem}
.article ul,.article ol{color:var(--texto);margin:10px 0 18px 1.2rem}
.article li{margin-bottom:6px}
.article figure{margin:24px 0;border-radius:var(--radio);overflow:hidden;box-shadow:var(--sombra)}
.article figure img{width:100%;height:auto}
.article figcaption{font-size:.82rem;color:var(--texto-suave);padding:10px 14px;background:var(--azul-50)}
.callout{
  border-left:4px solid var(--azul-700);
  background:var(--azul-50);padding:18px 22px;border-radius:var(--radio-sm);
  margin:22px 0;
}
.callout.warn{border-color:var(--warn);background:#fef6e7}
.callout.danger{border-color:var(--danger);background:#fdecec}
.callout strong{color:var(--azul-800)}

.sidebar-cta{
  position:sticky;top:100px;
  background:linear-gradient(135deg,var(--azul-800),var(--azul-600));
  color:#fff;padding:30px;border-radius:var(--radio);text-align:center;
}
.sidebar-cta h4{color:#fff;margin-bottom:10px}
.sidebar-cta p{color:#cdd9eb;font-size:.9rem}
.sidebar-cta a.btn{background:#fff;color:var(--azul-800);margin-top:14px}
.sidebar-cta a.btn:hover{background:var(--azul-50)}

/* ===== Acordeón FAQ ===== */
.faq-item{
  border:1px solid var(--linea);border-radius:var(--radio);
  margin-bottom:10px;overflow:hidden;background:#fff;
}
.faq-q{
  width:100%;text-align:left;background:#fff;border:none;
  padding:18px 22px;font-weight:700;color:var(--azul-800);cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;font-size:1rem;
}
.faq-q:hover{background:var(--azul-50)}
.faq-q::after{content:"+";font-size:1.5rem;color:var(--azul-700);transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.open .faq-a{max-height:500px}
.faq-a-inner{padding:0 22px 18px;color:var(--texto-suave)}

/* ===== Tabla ===== */
.table-wrap{overflow-x:auto;border-radius:var(--radio);border:1px solid var(--linea);margin:20px 0}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--linea);font-size:.92rem}
th{background:var(--azul-50);color:var(--azul-800);font-weight:700}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--azul-50)}

/* ===== Imagen dinámica (slider CSS) ===== */
.dynamic-img{
  position:relative;border-radius:var(--radio);overflow:hidden;
  aspect-ratio:16/9;box-shadow:var(--sombra);
}
.dynamic-img .slide{
  position:absolute;inset:0;opacity:0;
  background-size:cover;background-position:center;
  animation:slideShow 18s infinite;
}
.dynamic-img .slide:nth-child(1){animation-delay:0s}
.dynamic-img .slide:nth-child(2){animation-delay:6s}
.dynamic-img .slide:nth-child(3){animation-delay:12s}
@keyframes slideShow{
  0%{opacity:0}
  10%,30%{opacity:1}
  40%,100%{opacity:0}
}

/* ===== Animaciones al scroll ===== */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .8s ease, transform .8s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===== Formulario ===== */
.form-group{margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;font-weight:600;color:var(--azul-800);font-size:.9rem}
.form-control{
  width:100%;padding:12px 14px;border:1px solid var(--linea);border-radius:var(--radio-sm);
  font:inherit;color:var(--texto);background:#fff;transition:var(--trans);
}
.form-control:focus{outline:none;border-color:var(--azul-700);box-shadow:0 0 0 3px var(--azul-100)}
textarea.form-control{min-height:140px;resize:vertical}

/* ===== Utility ===== */
.text-center{text-align:center}
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}
.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}.mb-4{margin-bottom:32px}
.tag{
  display:inline-block;padding:4px 10px;background:var(--azul-50);
  color:var(--azul-700);border-radius:999px;font-size:.78rem;font-weight:700;
}

/* ===== Skip link accesibilidad ===== */
.skip-link{
  position:absolute;top:-100px;left:0;background:var(--azul-800);color:#fff;
  padding:10px 16px;z-index:200;border-radius:0 0 8px 0;font-weight:700;
}
.skip-link:focus{top:0}