/* ============================================================
   GRUPO PALCON — Hoja de estilos principal
   Estructura:
   1. Variables y reset
   2. Tipografía y utilidades
   3. Botones
   4. Barra superior + Header / Navegación + menú móvil
   5. Hero (portada)
   6. Banda de estadísticas
   7. Secciones genéricas / títulos
   8. Galería de proyectos
   9. "Confían en nosotros" (logos)
   10. Testimonio
   11. CTA + Contacto / Mapa
   12. Footer
   13. Banner de páginas internas
   14. Tarjetas (servicios / blog)
   15. Línea de tiempo (historia)
   16. Valores
   17. Casos de éxito (full-bleed)
   18. Carrusel
   19. Formularios
   20. Animaciones y responsive
   ============================================================ */

/* ---------- 1. Variables y reset ---------- */
:root{
  --navy-900:#0a1826;   /* barra superior / footer */
  --navy-800:#0e2031;   /* fondos oscuros */
  --navy-700:#13293d;
  --navy-600:#1b3a55;
  --blue-700:#11507f;   /* banda estadísticas */
  --blue-600:#1769a6;
  --blue-500:#1f8ed1;   /* botón primario */
  --blue-400:#2ea3e0;
  --cyan:#36a9e1;       /* acentos / enlaces */
  --paper:#ffffff;
  --paper-2:#f4f7fa;    /* secciones claras alternas */
  --line:#e3e9ef;
  --text:#e9eef3;       /* texto sobre oscuro */
  --text-dark:#1f2d3a;  /* texto sobre claro */
  --muted:#9fb3c4;      /* texto tenue sobre oscuro */
  --muted-dark:#5f7384; /* texto tenue sobre claro */
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 18px 40px rgba(6,18,30,.18);
  --shadow-sm:0 6px 18px rgba(6,18,30,.12);
  --maxw:1200px;
  --header-h:104px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Inter','Segoe UI',system-ui,Arial,sans-serif;
  color:var(--text-dark);
  background:var(--paper);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:'Montserrat',sans-serif;line-height:1.15;margin:0 0 .5em;font-weight:700;}

/* ---------- 2. Tipografía y utilidades ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section--dark{background:var(--navy-800);color:var(--text);}
.section--darker{background:var(--navy-900);color:var(--text);}
.section--alt{background:var(--paper-2);}
.text-center{text-align:center;}
.eyebrow{
  display:inline-block;font-family:'Montserrat',sans-serif;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;font-size:.78rem;color:var(--cyan);
  margin-bottom:.6rem;
}
.section-title{font-size:clamp(1.7rem,3.2vw,2.5rem);margin-bottom:.4em;}
.section-sub{max-width:680px;color:var(--muted-dark);font-size:1.02rem;}
.section--dark .section-sub{color:var(--muted);}
.divider{width:64px;height:4px;background:var(--blue-500);border-radius:4px;margin:16px 0 28px;}
.text-center .divider{margin-left:auto;margin-right:auto;}
.placeholder-note{
  background:#fff7e6;border:1px dashed #e0b94d;color:#8a6d1f;
  font-size:.82rem;border-radius:8px;padding:4px 10px;display:inline-block;margin-top:8px;
}

/* ---------- 3. Botones ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6em;cursor:pointer;border:none;
  font-family:'Montserrat',sans-serif;font-weight:600;font-size:.95rem;
  padding:.85em 1.6em;border-radius:999px;transition:transform .2s var(--ease),box-shadow .2s,background .2s;
  text-align:center;white-space:nowrap;
}
.btn svg{width:1em;height:1em;}
.btn--primary{background:var(--blue-500);color:#fff;box-shadow:0 10px 24px rgba(31,142,209,.35);}
.btn--primary:hover{background:var(--blue-400);transform:translateY(-2px);}
.btn--ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.55);}
.btn--ghost:hover{background:#fff;color:var(--navy-800);}
.btn--dark{background:var(--navy-800);color:#fff;}
.btn--dark:hover{background:var(--navy-700);}
.btn--lg{padding:1em 2em;font-size:1.05rem;}
.btn--block{width:100%;justify-content:center;}

/* ---------- 4. Barra superior + Header ---------- */
.topbar{
  background:var(--navy-900);color:var(--muted);font-size:.82rem;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar .container{display:flex;align-items:center;gap:24px;height:40px;max-width:1340px;}
.topbar a{display:inline-flex;align-items:center;gap:.5em;color:var(--muted);transition:color .2s;}
.topbar a:hover{color:#fff;}
.topbar .topbar-spacer{flex:1;}
.topbar .socials{display:flex;gap:14px;}
.topbar .socials a{font-size:1rem;}

.site-header{
  position:sticky;top:0;z-index:100;background:var(--navy-800);
  box-shadow:0 4px 18px rgba(6,18,30,.25);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:20px;max-width:1340px;}

/* Logo */
.brand{display:flex;align-items:center;gap:10px;color:#fff;}
.brand .brand-logo{height:66px;width:auto;flex:none;display:block;filter:drop-shadow(0 3px 10px rgba(0,0,0,.5));}
.site-footer .brand .brand-logo{height:80px;}
.brand .brand-text{line-height:1;}
.brand .brand-text strong{display:block;font-family:'Montserrat';font-weight:800;font-size:1.55rem;line-height:1;letter-spacing:.05em;color:#fff;}
.brand .brand-text small{display:block;font-size:.6rem;font-weight:600;letter-spacing:.5em;color:var(--cyan);text-transform:uppercase;margin-top:3px;text-indent:.5em;}

/* Navegación */
.main-nav{display:flex;align-items:center;}
.main-nav>ul{display:flex;align-items:center;gap:7px;}
.main-nav>ul>li{position:relative;}
.main-nav>ul>li>a{
  display:flex;align-items:center;gap:.35em;color:#dfe8f0;font-family:'Montserrat';font-weight:600;
  font-size:.92rem;padding:12px 13px;border-radius:8px;transition:color .2s,background .2s;white-space:nowrap;
}
.main-nav>ul>li>a:hover,.main-nav>ul>li.active>a{color:var(--cyan);}
.main-nav .has-dropdown>a::after{
  content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg);margin-left:2px;margin-top:-3px;transition:transform .2s;
}
.main-nav .has-dropdown:hover>a::after{transform:rotate(-135deg);margin-top:2px;}

/* Submenús */
.dropdown{
  position:absolute;top:calc(100% - 6px);left:0;min-width:240px;background:#fff;border-radius:10px;
  box-shadow:var(--shadow);padding:8px;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s,transform .2s,visibility .2s;z-index:120;
}
.main-nav li:hover>.dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown a{
  display:block;padding:10px 14px;border-radius:8px;color:var(--text-dark);font-size:.92rem;font-weight:500;
  transition:background .15s,color .15s;
}
.dropdown a:hover{background:var(--blue-500);color:#fff;}
.dropdown .dropdown-head{
  font-family:'Montserrat';font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;
  color:var(--muted-dark);padding:8px 14px 4px;
}

.nav-cta{margin-left:8px;}

/* Botón hamburguesa */
.nav-toggle{display:none;background:none;border:none;cursor:pointer;width:44px;height:44px;flex:none;}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:26px;height:3px;background:#fff;border-radius:3px;position:relative;transition:.25s;
}
.nav-toggle span::before{position:absolute;top:-8px;}
.nav-toggle span::after{position:absolute;top:8px;}
.nav-open .nav-toggle span{background:transparent;}
.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}

/* ---------- 5. Hero ---------- */
.hero{
  position:relative;min-height:600px;display:flex;align-items:center;color:#fff;
  background:var(--navy-800);overflow:hidden;
}
.hero__bg{position:absolute;inset:0;}
.hero__bg img{width:100%;height:100%;object-fit:cover;}
.hero__slide{position:absolute;inset:0;opacity:0;transition:opacity 2.2s ease-in-out;animation:heroZoom 26s ease-in-out infinite alternate;}
.hero__slide.active{opacity:1;}
.hero__bg::after{
  content:"";position:absolute;inset:0;z-index:2;
  background:
    linear-gradient(90deg,rgba(7,16,27,.82) 0%,rgba(7,16,27,.48) 48%,rgba(7,16,27,.12) 100%),
    linear-gradient(0deg,rgba(7,16,27,.38) 0%,rgba(7,16,27,0) 34%);
}
.hero .container{position:relative;z-index:2;padding-top:60px;padding-bottom:60px;}
.hero__card{max-width:620px;}
.hero h1{font-size:clamp(2rem,4.6vw,3.4rem);margin-bottom:.3em;text-shadow:0 2px 18px rgba(4,10,18,.6);}
.hero p{font-size:1.15rem;color:#eef4f9;max-width:520px;margin-bottom:1.8em;text-shadow:0 2px 14px rgba(4,10,18,.7);}

/* ---------- 6. Banda de estadísticas ---------- */
.stats{
  background:linear-gradient(135deg,var(--blue-700),var(--blue-600));
  position:relative;color:#fff;overflow:hidden;
}
.stats::before{
  content:"";position:absolute;inset:0;opacity:.18;
  background-image:linear-gradient(rgba(255,255,255,.25) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.25) 1px,transparent 1px);
  background-size:38px 38px;
}
.stats .container{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:40px;padding:50px 24px;}
.stat{display:flex;align-items:center;gap:18px;justify-content:center;}
.stat>div{max-width:250px;}
.stat__icon{width:58px;height:58px;flex:none;color:#fff;opacity:.95;}
.stat__icon svg{width:100%;height:100%;}
.stat__num{font-family:'Montserrat';font-weight:800;font-size:2.4rem;line-height:1;}
.stat__label{font-size:.92rem;color:#dcebf6;}
.stat+.stat{border-left:1px solid rgba(255,255,255,.22);}

/* ---------- 7. Secciones / títulos ---------- */
.section-head{margin-bottom:48px;}
.section-head--center{text-align:center;max-width:760px;margin-left:auto;margin-right:auto;}
.section-head--center .divider{margin-left:auto;margin-right:auto;}

/* ---------- 8. Galería de proyectos ---------- */
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.proj-card{
  position:relative;border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:4/3;cursor:pointer;
  box-shadow:var(--shadow-sm);
}
.proj-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.proj-card::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,20,32,.85),rgba(8,20,32,.05) 60%);}
.proj-card__label{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;color:#fff;display:flex;align-items:center;gap:10px;
  font-family:'Montserrat';font-weight:600;transition:transform .3s var(--ease);
}
.proj-card__label .arrow{display:inline-block;transition:transform .3s;}
.proj-card:hover img{transform:scale(1.08);}
.proj-card:hover .proj-card__label .arrow{transform:translateX(6px);}

/* ---------- 9. Confían en nosotros ---------- */
.clients{padding:64px 0;background:#1e2030;}
.clients h3{text-align:center;color:#fff;font-size:1.6rem;margin-bottom:34px;}
.logos{position:relative;max-width:1120px;margin:0 auto;padding:0 58px;}
.logos__viewport{overflow:hidden;padding:16px 0;}
.logos__track{display:flex;gap:20px;width:max-content;cursor:grab;user-select:none;}
.logos__track.dragging{cursor:grabbing;}
.logos__track img{pointer-events:none;-webkit-user-drag:none;}
.logos__btn{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:none;cursor:pointer;background:rgba(255,255,255,.12);color:#fff;font-size:1.8rem;line-height:1;display:grid;place-items:center;z-index:2;transition:background .2s,transform .15s;}
.logos__btn:hover{background:var(--blue-500);}
.logos__btn:active{transform:translateY(-50%) scale(.9);}
.logos__prev{left:2px;}
.logos__next{right:2px;}
@media (max-width:680px){.logos{padding:0 44px;} .logos__btn{width:40px;height:40px;font-size:1.5rem;}}
.client-logo{height:104px;width:104px;min-width:104px;flex:none;display:grid;place-items:center;padding:0;background:transparent;border:none;opacity:.96;transition:transform .25s var(--ease),opacity .25s;}
.client-logo img{width:96px;height:96px;border-radius:50%;object-fit:contain;display:block;filter:drop-shadow(0 6px 16px rgba(0,0,0,.35));}
.client-logo:hover{opacity:1;transform:translateY(-5px) scale(1.06);}

/* ---------- 10. Testimonio ---------- */
.testimonial{position:relative;color:#fff;overflow:hidden;}
.testimonial__bg{position:absolute;inset:0;}
.testimonial__bg img{width:100%;height:100%;object-fit:cover;}
.testimonial__bg::after{content:"";position:absolute;inset:0;background:rgba(8,20,32,.86);}
.testimonial .container{position:relative;z-index:2;display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:center;padding:80px 24px;}
.testimonial__photo{
  width:100%;max-width:270px;aspect-ratio:1;border-radius:50%;background:#eef3f7 center/cover;margin:0 auto;
  box-shadow:0 0 0 5px rgba(31,142,209,.55), 0 0 0 11px rgba(31,142,209,.18), 0 18px 40px rgba(0,0,0,.45);
}
.testimonial blockquote{font-size:1.35rem;line-height:1.6;font-style:italic;margin:0 0 18px;color:#eaf2f8;}
.testimonial blockquote::before{content:"\201C";font-family:Georgia,serif;font-size:3rem;color:var(--cyan);line-height:0;vertical-align:-.4em;margin-right:.1em;}
.testimonial .who strong{display:block;font-family:'Montserrat';font-size:1.15rem;}
.testimonial .who span{color:var(--cyan);font-size:.95rem;}

/* ---------- 11. CTA + Contacto / Mapa ---------- */
.cta-bar{background:var(--navy-900);color:#fff;}
.cta-bar .container{display:flex;align-items:center;justify-content:center;gap:28px;flex-wrap:wrap;padding:26px 24px;}
.cta-bar p{font-family:'Montserrat';font-weight:700;font-size:1.3rem;margin:0;}

.contact-map{position:relative;}
.contact-map iframe{width:100%;height:520px;border:0;display:block;filter:grayscale(.2);}
.contact-card{
  position:absolute;top:50%;left:max(24px,calc((100% - var(--maxw))/2 + 24px));transform:translateY(-50%);
  width:360px;max-width:calc(100% - 48px);background:linear-gradient(160deg,var(--blue-600),var(--blue-700));
  color:#fff;border-radius:16px;padding:34px 30px;box-shadow:var(--shadow);
}
.contact-card h3{font-size:1.5rem;margin-bottom:18px;}
.contact-card .line{display:flex;gap:14px;align-items:flex-start;padding:11px 0;border-top:1px solid rgba(255,255,255,.18);}
.contact-card .line:first-of-type{border-top:none;}
.contact-card .line svg{width:20px;height:20px;flex:none;margin-top:3px;color:var(--cyan);}
.contact-card .line b{display:block;font-family:'Montserrat';font-size:.95rem;}
.contact-card .line span{font-size:.88rem;color:#dbe9f4;}
.contact-card .tagline{margin-top:18px;font-style:italic;color:#eaf3fa;}

/* ---------- 12. Footer ---------- */
.site-footer{background:var(--navy-900);color:var(--muted);padding:60px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.site-footer h4{color:#fff;font-size:1.05rem;margin-bottom:18px;}
.site-footer a{color:var(--muted);transition:color .2s;}
.site-footer a:hover{color:var(--cyan);}
.site-footer li{padding:5px 0;font-size:.92rem;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:.9rem;line-height:1.7;}
.footer-socials{display:flex;gap:12px;margin-top:16px;}
.footer-socials a{width:38px;height:38px;border:1px solid rgba(255,255,255,.18);border-radius:50%;display:grid;place-items:center;}
.footer-socials a:hover{background:var(--blue-500);border-color:var(--blue-500);color:#fff;}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.84rem;}

/* ---------- 13. Banner de páginas internas ---------- */
.page-hero{position:relative;color:#fff;padding:90px 0 60px;background:var(--navy-800);overflow:hidden;}
.page-hero__bg{position:absolute;inset:0;}
.page-hero__bg img{width:100%;height:100%;object-fit:cover;}
.page-hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,20,32,.92),rgba(8,20,32,.6));}
.page-hero .container{position:relative;z-index:2;}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);}
.breadcrumb{font-size:.9rem;color:var(--muted);display:flex;gap:8px;}
.breadcrumb a:hover{color:var(--cyan);}

/* ---------- Split (dos columnas: texto + imagen) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split__media img{border-radius:var(--radius);box-shadow:var(--shadow-sm);width:100%;aspect-ratio:4/3;object-fit:cover;}
.svc-thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px;}
.svc-thumbs img{border-radius:8px;aspect-ratio:1/1;object-fit:cover;box-shadow:var(--shadow-sm);}
.split--reverse .split__media{order:-1;}
@media (max-width:820px){
  .split{grid-template-columns:1fr;gap:28px;}
  .split--reverse .split__media{order:0;}
}

/* ---------- 14. Tarjetas (servicios / blog) ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.card{
  background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s var(--ease),box-shadow .25s;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
.card__media{aspect-ratio:16/10;overflow:hidden;display:block;width:100%;padding:0;border:none;background:none;cursor:pointer;position:relative;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card__zoom{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:.4em;background:rgba(8,20,32,.5);color:#fff;font-family:'Montserrat';font-weight:700;letter-spacing:.02em;opacity:0;transition:opacity .25s;}
.card__zoom::before{content:"\1F50D";}
.card:hover .card__zoom{opacity:1;}
.card:hover .card__media img{transform:scale(1.07);}
.card__body{padding:24px;flex:1;display:flex;flex-direction:column;}
.card__icon{width:54px;height:54px;margin:-52px 0 14px;position:relative;z-index:2;background:var(--blue-500);border-radius:12px;display:grid;place-items:center;color:#fff;box-shadow:var(--shadow-sm);}
.card__icon svg{width:28px;height:28px;}
.card h3{font-size:1.2rem;margin-bottom:.5em;}
.card p{color:var(--muted-dark);font-size:.95rem;margin:0 0 16px;}
.card .card__link{margin-top:auto;font-family:'Montserrat';font-weight:600;color:var(--blue-500);display:inline-flex;align-items:center;gap:.4em;background:none;border:none;cursor:pointer;padding:0;font-size:.95rem;}
.card .card__link .arrow{transition:transform .25s;}
.card:hover .card__link .arrow{transform:translateX(5px);}
.card__meta{font-size:.8rem;color:var(--muted-dark);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px;}

/* ---------- 15. Línea de tiempo ---------- */
.timeline{position:relative;margin-top:56px;padding-top:20px;}
.timeline::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue-500),var(--cyan));border-radius:3px;}
.timeline__track{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.tl-item{position:relative;padding-top:34px;text-align:center;}
.tl-item::before{content:"";position:absolute;top:-9px;left:50%;transform:translateX(-50%);width:18px;height:18px;border-radius:50%;background:var(--blue-500);border:4px solid #fff;box-shadow:0 0 0 3px var(--blue-500);}
.tl-item .year{font-family:'Montserrat';font-weight:800;color:var(--blue-500);font-size:1.4rem;}
.tl-item p{font-size:.9rem;color:var(--muted-dark);}

/* ---------- 16. Valores ---------- */
.values{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.value{text-align:center;padding:34px 22px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .25s;}
.value:hover{transform:translateY(-6px);}
.value__icon{width:74px;height:74px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--blue-500),var(--blue-700));color:#fff;}
.value__icon svg{width:36px;height:36px;}
.value h3{font-size:1.15rem;}
.value p{color:var(--muted-dark);font-size:.9rem;margin:0;}

/* ---------- 17. Casos de éxito (full-bleed) ---------- */
.case{position:relative;min-height:460px;display:flex;align-items:flex-end;color:#fff;overflow:hidden;}
.case__bg{position:absolute;inset:0;}
.case__bg img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease);}
.case:hover .case__bg img{transform:scale(1.05);}
.case__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,20,32,.2),rgba(8,20,32,.85));}
.case .container{position:relative;z-index:2;padding:48px 24px;}
.case__inner{max-width:560px;margin-left:auto;text-align:right;}
.case h2{font-size:clamp(1.5rem,3vw,2.2rem);}
.case p{color:#dbe7f0;margin:0 0 12px;}
.case .company{display:inline-block;font-family:'Montserrat';font-weight:700;background:rgba(31,142,209,.9);padding:6px 16px;border-radius:6px;font-size:.9rem;}
.case__title{cursor:pointer;transition:color .2s;}
.case__title:hover{color:var(--cyan);}
.case__more-ic{vertical-align:middle;opacity:.6;margin-left:.2em;transition:opacity .2s,transform .2s;}
.case__title:hover .case__more-ic{opacity:1;transform:scale(1.1);}
.case__title:focus-visible{outline:2px solid var(--cyan);outline-offset:5px;border-radius:6px;}
.case:nth-child(even) .case__bg::after{background:linear-gradient(90deg,rgba(8,20,32,.85),rgba(8,20,32,.2));}
.case:nth-child(even) .case__inner{margin-left:0;margin-right:auto;text-align:left;}

/* ---------- 18. Carrusel ---------- */
.carousel{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--navy-700);box-shadow:var(--shadow-sm);}
.carousel__track{display:flex;transition:transform .5s var(--ease);}
.carousel__slide{min-width:100%;}
.carousel__slide img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.carousel__btn{
  position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;border:none;cursor:pointer;
  background:rgba(8,20,32,.55);color:#fff;font-size:1.4rem;display:grid;place-items:center;transition:background .2s;z-index:3;
}
.carousel__btn:hover{background:var(--blue-500);}
.carousel__btn--prev{left:14px;}
.carousel__btn--next{right:14px;}
.carousel__dots{position:absolute;bottom:14px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:3;}
.carousel__dots button{width:10px;height:10px;border-radius:50%;border:none;background:rgba(255,255,255,.5);cursor:pointer;padding:0;}
.carousel__dots button.active{background:var(--blue-500);width:26px;border-radius:6px;transition:.3s;}

/* ---------- 19. Formularios ---------- */
.form-wrap{display:grid;grid-template-columns:380px 1fr;gap:40px;align-items:start;}
.form-aside{background:linear-gradient(160deg,var(--blue-600),var(--blue-700));color:#fff;border-radius:16px;padding:38px 32px;box-shadow:var(--shadow);}
.form-aside h2{font-size:1.7rem;}
.form-aside p{color:#e3eff8;}
.form-aside .contact-line{display:flex;align-items:center;gap:12px;margin-top:14px;font-size:.95rem;}
.form-aside .contact-line svg{width:20px;height:20px;color:#bfe1f5;flex:none;}

form.palcon-form{background:#fff;border-radius:16px;padding:34px;box-shadow:var(--shadow-sm);}
.field{margin-bottom:18px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field label{display:block;font-family:'Montserrat';font-weight:600;font-size:.88rem;margin-bottom:7px;color:var(--text-dark);}
.field label .req{color:#e0533d;}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font:inherit;color:var(--text-dark);
  background:#fbfdfe;transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(31,142,209,.15);}
.field textarea{min-height:130px;resize:vertical;}
.field input[type=file]{padding:9px;background:#fff;}
.field .error-msg{color:#e0533d;font-size:.82rem;margin-top:5px;display:none;}
.field.invalid input,.field.invalid textarea{border-color:#e0533d;}
.field.invalid .error-msg{display:block;}
.check-line{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--muted-dark);margin-bottom:18px;}
.check-line input{width:18px;height:18px;margin-top:3px;flex:none;}
.check-line a{color:var(--blue-500);text-decoration:underline;}
.form-note{font-size:.82rem;color:var(--muted-dark);margin-bottom:16px;}
.form-success{display:none;background:#e7f7ec;border:1px solid #57b877;color:#1f7a45;padding:14px 18px;border-radius:10px;margin-bottom:18px;font-size:.92rem;}
.form-success.show{display:block;}

/* ---------- 20. Animaciones + responsive ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.in{opacity:1;transform:none;}

@media (max-width:992px){
  .testimonial .container{grid-template-columns:1fr;}
  .testimonial__photo{max-width:260px;}
  .form-wrap{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .proj-grid,.card-grid,.values{grid-template-columns:repeat(2,1fr);}
  .timeline__track{grid-template-columns:repeat(2,1fr);}
}

@media (max-width:1180px){
  :root{--header-h:74px;}
  .brand .brand-logo{height:56px;}
  body.scrolled .brand .brand-logo{height:48px;}
  .nav-toggle{display:block;order:3;}
  .main-nav{
    position:fixed;inset:var(--header-h) 0 0 auto;width:min(86vw,340px);background:var(--navy-900);
    transform:translateX(100%);transition:transform .3s var(--ease);overflow-y:auto;padding:18px;box-shadow:-10px 0 40px rgba(0,0,0,.4);
    flex-direction:column;align-items:stretch;
  }
  .nav-open .main-nav{transform:translateX(0);}
  .main-nav>ul{flex-direction:column;align-items:stretch;gap:2px;}
  .main-nav>ul>li>a{padding:14px 12px;border-radius:8px;}
  .main-nav .has-dropdown>a::after{margin-left:auto;}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:rgba(255,255,255,.05);
    max-height:0;overflow:hidden;padding:0 8px;transition:max-height .3s;}
  .main-nav .has-dropdown.open .dropdown{max-height:420px;padding:8px;}
  .dropdown a{color:#cfdae4;}
  .dropdown .dropdown-head{color:var(--muted);}
  .nav-cta{margin:14px 0 0;}
  .nav-cta .btn{width:100%;justify-content:center;}
  body.nav-open{overflow:hidden;}
}

@media (max-width:680px){
  .section{padding:56px 0;}
  .stats .container{grid-template-columns:1fr;gap:8px;}
  .stat+.stat{border-left:none;border-top:1px solid rgba(255,255,255,.22);padding-top:18px;}
  .proj-grid,.card-grid,.values,.footer-grid,.field-row,.timeline__track{grid-template-columns:1fr;}
  .contact-card{position:static;transform:none;width:auto;margin:-60px 16px 0;}
  .contact-map iframe{height:360px;}
  .case__inner{text-align:left !important;margin:0 !important;}
  .case__bg::after,.case:nth-child(even) .case__bg::after{background:rgba(8,20,32,.78) !important;}
  .topbar .container{gap:14px;font-size:.75rem;}
  .topbar .topbar-addr{display:none;}
}

/* ============================================================
   21. MEJORAS PRO (progreso, header dinámico, contadores,
       hero animado, marquee, botones flotantes, lightbox)
   ============================================================ */

/* Barra de progreso de lectura */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--blue-500),var(--cyan));transition:width .08s linear;}

/* Header dinámico al hacer scroll */
.site-header .container{transition:height .3s var(--ease);}
.brand .brand-logo{transition:height .3s var(--ease);}
body.scrolled .site-header{background:rgba(10,24,38,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 6px 26px rgba(6,18,30,.45);}
body.scrolled .site-header .container{height:76px;}
body.scrolled .brand .brand-logo{height:58px;}

/* Hero: zoom lento (Ken Burns) + indicador de scroll */
@keyframes heroZoom{from{transform:scale(1.03)}to{transform:scale(1.12)}}
.page-hero__bg img{animation:kenburns 18s ease-out both;}
@keyframes kenburns{from{transform:scale(1.14)}to{transform:scale(1)}}
.hero__scroll{position:absolute;left:50%;bottom:24px;transform:translateX(-50%);z-index:3;
  width:26px;height:42px;border:2px solid rgba(255,255,255,.55);border-radius:14px;display:grid;justify-items:center;}
.hero__scroll::before{content:"";width:4px;height:8px;background:#fff;border-radius:2px;margin-top:6px;animation:scrolldot 1.6s infinite;}
@keyframes scrolldot{0%{opacity:0;transform:translateY(0)}40%{opacity:1}80%{opacity:0;transform:translateY(13px)}100%{opacity:0}}

/* Carrusel infinito de logos */
.marquee{overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);}
.marquee__track{display:flex;gap:18px;width:max-content;animation:marquee 30s linear infinite;}
.marquee:hover .marquee__track{animation-play-state:paused;}
.marquee .client-logo{flex:none;}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(calc(-50% - 9px))}}

/* Botones flotantes (WhatsApp / volver arriba) */
.fab{position:fixed;right:20px;z-index:150;width:54px;height:54px;border-radius:50%;display:grid;place-items:center;
  box-shadow:var(--shadow);cursor:pointer;border:none;color:#fff;transition:transform .25s var(--ease),opacity .25s;}
.fab:hover{transform:translateY(-3px) scale(1.06);}
.fab--wa{bottom:22px;background:#25d366;animation:waPulse 2.6s infinite;}
.fab--wa svg{width:30px;height:30px;}
.fab--top{bottom:88px;background:var(--blue-600);opacity:0;pointer-events:none;}
.fab--top.show{opacity:1;pointer-events:auto;}
.fab--top svg{width:22px;height:22px;}
@keyframes waPulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 0 0 16px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}

/* Lightbox (ampliar imágenes) */
.zoomable{cursor:zoom-in;}
.lightbox{position:fixed;inset:0;z-index:300;background:rgba(6,14,22,.93);display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .3s;padding:30px;}
.lightbox.show{opacity:1;visibility:visible;}
.lightbox img{max-width:92vw;max-height:78vh;border-radius:8px;box-shadow:0 30px 80px rgba(0,0,0,.6);transform:scale(.95);transition:transform .3s;}
.lightbox.show img{transform:scale(1);}
.lightbox__close{position:absolute;top:18px;right:26px;background:none;border:none;color:#fff;font-size:2.6rem;line-height:1;cursor:pointer;z-index:3;}
.lightbox__nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.14);border:none;color:#fff;font-size:2.2rem;width:54px;height:54px;border-radius:50%;cursor:pointer;display:grid;place-items:center;transition:background .2s;z-index:3;}
.lightbox__nav:hover{background:var(--blue-500);}
.lightbox__prev{left:20px;}
.lightbox__next{right:20px;}
.lightbox__caption{position:absolute;left:0;right:0;bottom:0;padding:46px 70px 24px;text-align:center;color:#fff;background:linear-gradient(0deg,rgba(5,12,20,.94),rgba(5,12,20,.5) 60%,rgba(5,12,20,0));}
.lightbox__caption .lb-title{display:block;font-family:'Montserrat';font-weight:700;font-size:1.2rem;}
.lightbox__caption .lb-empresa{display:block;color:var(--cyan);font-family:'Montserrat';font-weight:600;font-size:.84rem;letter-spacing:.04em;margin-top:3px;}
.lightbox__caption .lb-empresa:empty{display:none;}
.lightbox__caption .lb-desc{display:block;max-width:740px;margin:8px auto 0;font-size:.92rem;color:#d2dce5;line-height:1.55;}
.lightbox__caption .lb-count{display:block;font-size:.8rem;color:#8aa0b2;margin-top:8px;}
.lightbox__caption .lb-count:empty{display:none;}
@media (max-width:680px){.lightbox__caption{padding:32px 16px 18px;} .lightbox__caption .lb-desc{font-size:.85rem;}}
@media (max-width:680px){.lightbox__nav{width:44px;height:44px;font-size:1.8rem;} .lightbox__prev{left:8px;} .lightbox__next{right:8px;}}

/* Respeta usuarios que prefieren menos animación */
@media (prefers-reduced-motion: reduce){
  .hero__slide,.page-hero__bg img,.marquee__track,.hero__scroll::before,.fab--wa{animation:none !important;}
  .hero__slide{transition:none;}
}