/* =============================================================================
   VALTREX · Hoja de estilos principal
   Paleta:
     --principal   #23201d  Negro cálido (marca)
     --secundario  #3a342e  Gris cálido oscuro (soporte)
     --acento      #fd3f00  Rojo anaranjado (marca)
     --grafito     #333333  Gris grafito (soporte)
     --naranja     #fd3f00  Rojo anaranjado / --naranja-2 #fc7345 acento claro
   ========================================================================== */
:root{
  --principal:#23201d;
  --secundario:#3a342e;
  --acento:#fd3f00;
  --acento-2:#fc7345;
  --grafito:#333333;
  --naranja:#fd3f00;
  --naranja-2:#fc7345;
  --black:#1b1815;
  --white:#ffffff;
  --ink:#2a2622;        /* texto sobre fondo claro */
  --ink-soft:#6b635c;
  --line:#eae6e2;
  --bg-soft:#f7f5f3;
  --header-h:74px;
  --maxw:1280px;
  --radius:4px;
  --ff-head:'DM Sans',system-ui,sans-serif;
  --ff-body:'IBM Plex Sans',system-ui,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}
body{
  background:var(--black);
  color:var(--white);
  font-family:var(--ff-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:var(--acento);text-decoration:none}
a:hover{color:var(--acento-2)}
::selection{background:var(--acento);color:#fff}

.container{max-width:var(--maxw);margin:0 auto;padding:0 32px;width:100%}

/* --- Tipografía de secciones ---------------------------------------------- */
h1,h2,h3,h4{font-family:var(--ff-head);letter-spacing:-.015em;line-height:1.05}
h2{font-weight:700;font-size:clamp(1.9rem,3.6vw,3rem)}

.eyebrow{display:inline-flex;align-items:center;gap:12px;margin-bottom:16px}
.eyebrow span:not(.eyebrow-bar){
  font-family:var(--ff-head);font-size:13px;font-weight:700;
  letter-spacing:.24em;color:var(--acento);
}
.eyebrow-bar{width:34px;height:2px;background:var(--naranja)}
.eyebrow-center{justify-content:center}
.eyebrow-onlight span:not(.eyebrow-bar){color:#fff}

.section{padding:clamp(64px,8vw,110px) 32px;position:relative}
.section .container{padding:0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:56px}
.section-head h2{max-width:20ch}
.section-head-text{max-width:38ch;color:var(--ink-soft);font-size:15.5px}
.section-head-stacked{flex-direction:column;align-items:flex-start}
.section-head-stacked .section-head-text{margin-top:16px;max-width:60ch}
.section-head-center{flex-direction:column;align-items:center;text-align:center}
.section-head-center h2{max-width:22ch;margin:0 auto}

/* --- Botones -------------------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--ff-head);font-weight:700;font-size:15px;letter-spacing:.01em;
  padding:15px 28px;border-radius:var(--radius);border:1px solid transparent;
  cursor:pointer;transition:transform .15s,background .2s,color .2s,border-color .2s;
}
.btn svg{transition:transform .2s}
.btn:hover svg{transform:translateX(3px)}
.btn-primary{background:var(--acento);color:#fff}
.btn-primary:hover{background:var(--acento-2);color:#fff}
.btn-lg{padding:17px 34px}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{color:#fff;border-color:#fff;background:rgba(255,255,255,.06)}
.btn-header{padding:11px 22px;font-size:14px;background:var(--naranja);color:#fff}
.btn-header:hover{background:var(--naranja-2);color:#fff}

/* --- Header fijo ---------------------------------------------------------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:rgba(24,21,18,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .25s,box-shadow .25s;
}
.site-header.scrolled{background:#1b1815;box-shadow:0 6px 24px rgba(0,0,0,.4)}
.header-inner{display:flex;align-items:center;gap:32px;min-height:var(--header-h);padding-top:14px;padding-bottom:14px}
body{padding-top:var(--header-h)}
.brand{display:flex;align-items:center;flex-shrink:0}
.brand-logo{height:26px;width:auto}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{color:#cfc9c3;font-size:14.5px;font-weight:500;letter-spacing:.02em;transition:color .2s}
.nav-link:hover{color:#fff}
.nav-cta{margin-left:6px}

/* Hamburguesa (móvil) */
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;background:none;border:0;flex-direction:column;justify-content:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;height:2px;width:24px;background:#fff;margin:0 auto;transition:transform .25s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* --- Hero ----------------------------------------------------------------- */
.hero{position:relative;min-height:calc(92vh - var(--header-h));display:flex;align-items:center;overflow:hidden;background:var(--principal)}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(22,18,15,.94) 0%,rgba(35,32,29,.72) 45%,rgba(35,32,29,.22) 100%),
             linear-gradient(180deg,rgba(0,0,0,.5) 0%,rgba(0,0,0,0) 32%,rgba(0,0,0,.6) 100%);}
.hero-content{position:relative;padding-top:70px;padding-bottom:120px}
.eyebrow-light span:not(.eyebrow-bar){color:#fff}
.hero h1{font-weight:700;font-size:clamp(2.4rem,5.6vw,4.6rem);line-height:1.02;max-width:16ch;text-wrap:balance}
.hero-sub{margin-top:24px;font-size:clamp(1rem,1.5vw,1.2rem);color:#d9d3cd;max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:38px}
.hero-strip{position:absolute;left:0;right:0;bottom:0;background:rgba(20,17,14,.62);backdrop-filter:blur(4px);border-top:1px solid rgba(255,255,255,.08)}
.hero-strip-inner{display:flex;flex-wrap:wrap;gap:14px 40px;align-items:center;padding-top:16px;padding-bottom:16px}
.chip{display:flex;align-items:center;gap:10px;color:#eee9e4;font-size:13.5px;font-weight:500;letter-spacing:.04em}
.chip-dot{width:7px;height:7px;background:var(--naranja);transform:rotate(45deg)}

/* --- Nosotros ------------------------------------------------------------- */
.section-about{background:var(--principal);color:#fff}
.about-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:clamp(40px,5vw,72px);align-items:center}
.about-media{position:relative}
.about-photo{
  position:relative;width:100%;aspect-ratio:4/5;min-height:380px;overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(150deg,var(--secundario) 0%,var(--principal) 55%,var(--grafito) 100%);
}
.about-photo img{width:100%;height:100%;object-fit:cover;object-position:center}
.about-badge{position:absolute;right:-14px;bottom:-14px;background:var(--naranja);color:#fff;padding:20px 26px;max-width:230px}
.about-badge span{font-family:var(--ff-head);font-weight:700;font-size:14px;line-height:1.2}
.about-text h2{margin-bottom:22px}
.about-text .lead{color:#d6d0c9;font-size:16px;line-height:1.7;margin-bottom:16px}
.about-text .muted{color:#a49c94;font-size:15px;line-height:1.7;margin-bottom:40px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;border-top:1px solid rgba(255,255,255,.14);padding-top:34px}
.stat-num{font-family:var(--ff-head);font-weight:700;font-size:clamp(2rem,4vw,3rem);color:var(--naranja);line-height:1}
.stat-label{color:#d6d0c9;font-size:13.5px;margin-top:8px;letter-spacing:.02em}

/* --- Servicios ------------------------------------------------------------ */
.section-services{background:#fff;color:var(--principal)}
.section-services .section-head h2{color:var(--principal)}
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));border:1px solid var(--line)}
.service-card{padding:38px 34px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .2s,transform .2s;position:relative}
.service-card::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--naranja);transition:width .3s}
.service-card:hover{background:var(--bg-soft)}
.service-card:hover::before{width:100%}
.service-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.service-num{font-family:var(--ff-head);font-weight:700;font-size:15px;color:#c9c2bb}
.service-card h3{font-weight:700;font-size:20px;color:var(--principal);margin-bottom:12px}
.service-card p{color:var(--ink-soft);font-size:14.5px}

/* --- Sectores (continuidad, fondo grafito) -------------------------------- */
.sectors-wrap{background:#FF5722;color:var(--principal);padding-top:clamp(64px,8vw,100px);padding-bottom:clamp(64px,8vw,100px)}
.sectors-wrap h2{color:#fff;max-width:18ch}
.sectors-wrap .eyebrow span:not(.eyebrow-bar){color:#fff}
.sectors-wrap .eyebrow-bar{background:#fff}
.sectors-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px}
.sector-tile{
  position:relative;height:290px;overflow:hidden;display:flex;align-items:flex-end;
  background:linear-gradient(150deg,var(--from) 0%,var(--to) 100%);
  transition:transform .25s;
}
.sector-img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.sector-tile:hover .sector-img{transform:scale(1.06)}
.sector-tile::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(35,32,29,.15) 0%,rgba(27,24,21,.45) 45%,rgba(20,17,14,.9) 100%)}
.sector-tile:hover{transform:translateY(-4px)}
.sector-title{position:relative;z-index:1;padding:22px;font-family:var(--ff-head);font-weight:700;font-size:19px;color:#fff}
.sector-tile::before{content:"";position:absolute;left:22px;bottom:58px;width:26px;height:3px;background:var(--naranja);z-index:1}

/* --- Valores -------------------------------------------------------------- */
.section-values{background:var(--bg-soft);color:var(--principal)}
.section-values .section-head h2{color:var(--principal)}
.values-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.value-card{padding:36px 26px;background:#fff;border-top:3px solid var(--acento);text-align:center;transition:transform .2s,box-shadow .2s}
.value-card:nth-child(even){border-top-color:var(--naranja-2)}
.value-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(35,32,29,.12)}
.value-card svg{margin-bottom:20px}
.value-card h3{font-weight:700;font-size:17px;color:var(--principal);margin-bottom:8px}
.value-card p{color:var(--ink-soft);font-size:13.5px}

/* --- CTA final ------------------------------------------------------------ */
.section-cta{background:linear-gradient(120deg,var(--principal) 0%,var(--secundario) 100%);color:#fff;text-align:center;overflow:hidden}
.cta-pattern{position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(circle at 80% 20%,#000,transparent 70%);
  -webkit-mask-image:radial-gradient(circle at 80% 20%,#000,transparent 70%);}
.cta-inner{position:relative;max-width:820px}
.cta-kicker{display:inline-block;font-family:var(--ff-head);font-size:12px;font-weight:700;letter-spacing:.28em;color:var(--naranja);margin-bottom:18px}
.section-cta h2{font-size:clamp(2.1rem,4.6vw,3.6rem);margin-bottom:18px}
.section-cta p{color:#d6d0c9;font-size:17px;max-width:52ch;margin:0 auto 38px}

/* --- Formulario de contacto --- */
.form-card{
  position:relative;background:#fff;border-radius:12px;text-align:left;
  max-width:760px;margin:8px auto 0;padding:clamp(26px,4vw,46px);
  box-shadow:0 24px 60px rgba(0,0,0,.28);
}
.form-card .form-intro{color:var(--ink-soft);font-size:15.5px;line-height:1.6;margin:0 0 26px;max-width:none;text-align:left}
.form-ok{
  display:flex;align-items:center;gap:12px;
  background:#e8f7ef;color:#1c7a44;border:1px solid #b8e6cb;
  padding:14px 18px;border-radius:8px;margin-bottom:22px;font-size:14.5px;line-height:1.4;
}
.form-ok svg{flex-shrink:0}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field-wide{grid-column:1 / -1}
.field label{font-family:var(--ff-head);font-weight:600;font-size:14px;color:var(--principal)}
.field .req{color:var(--naranja)}
.field input,.field textarea{
  width:100%;padding:13px 15px;border:1px solid #ddd7d1;border-radius:8px;
  font-family:var(--ff-body);font-size:15px;color:var(--ink);background:#fff;
  transition:border-color .15s,box-shadow .15s;
}
.field input::placeholder,.field textarea::placeholder{color:#aca49d}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--acento);box-shadow:0 0 0 3px rgba(253,63,0,.15);
}
.field textarea{resize:vertical;min-height:130px}
.field [aria-invalid="true"]{border-color:#e0564b}
.field-err{color:#e0564b;font-size:12.5px}
.form-actions{margin-top:4px}
.form-actions .btn{cursor:pointer;justify-content:center}
/* honeypot: oculto para humanos, visible para bots */
.hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}

/* --- Footer --------------------------------------------------------------- */
.site-footer{background:var(--black);color:#fff;padding:clamp(56px,7vw,90px) 32px 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 0.35fr 0.9fr 1.25fr;gap:40px;padding-bottom:56px}
.footer-logo{height:24px;width:auto;margin-bottom:20px}
.footer-brand p{color:#a8a19a;font-size:14.5px;line-height:1.7;margin-bottom:22px;max-width:34ch}
.social{display:flex;gap:18px;align-items:center}
.social-link{display:inline-flex;align-items:center;justify-content:center;padding:0;border:0;background:none;color:#b3aca5;transition:color .2s,transform .2s}
.social-link:hover{color:var(--acento);transform:translateY(-2px)}
.footer-col h4{font-weight:700;font-size:13px;letter-spacing:.16em;color:#fff;margin-bottom:20px}
.footer-col a{display:block;color:#a8a19a;font-size:14.5px;margin-bottom:12px;transition:color .2s}
.footer-col a:hover{color:var(--acento)}
.footer-contact{display:flex;flex-direction:column;gap:15px}
.fc-item{display:flex;align-items:center;gap:11px;color:#a8a19a;font-size:14.5px}
.footer-col a.fc-item{display:flex;margin-bottom:0}
.footer-grid .footer-col:last-child{justify-self:end}
.fc-item svg{flex-shrink:0;width:18px;height:18px;display:block}
.fc-item > span{min-width:0;line-height:1.3}
a.fc-item:hover{color:var(--acento)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1)}
.footer-bottom-inner{padding-top:24px;padding-bottom:24px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;color:#7d766f;font-size:13px}

/* --- Responsive ----------------------------------------------------------- */
@media (max-width:860px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:var(--header-h);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:#1b1815;border-bottom:1px solid rgba(255,255,255,.1);
    padding:8px 24px 20px;
    transform:translateY(-140%);transition:transform .3s ease;
    max-height:calc(100vh - var(--header-h));overflow-y:auto;
  }
  .main-nav.open{transform:translateY(0)}
  .nav-link{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-cta{margin:16px 0 0;justify-content:center}
  .section-head{margin-bottom:40px}
  .stats{grid-template-columns:repeat(3,1fr);gap:10px}
  .about-badge{position:static;margin-top:20px;max-width:none;display:inline-block}

  /* --- Hero móvil: imagen vertical con texto arriba, chips en banda propia --- */
  .hero{min-height:auto;display:block}
  .hero-media{position:absolute;top:0;left:0;right:0;bottom:auto;height:78vh}
  .hero-overlay{
    height:78vh;bottom:auto;
    background:linear-gradient(180deg,rgba(23,19,16,.92) 0%,rgba(23,19,16,.5) 40%,rgba(23,19,16,.35) 70%,rgba(23,19,16,.7) 100%);
  }
  .hero-content{padding-top:calc(22vh - 20px);padding-bottom:25px;min-height:78vh;display:flex;flex-direction:column;justify-content:flex-start}
  .hero h1{font-size:clamp(2rem,8.5vw,3rem)}
  .hero-sub{margin-top:20px}
  .hero-actions{gap:12px;margin-top:auto;margin-bottom:0}
  .hero-actions .btn{width:100%;justify-content:center}
  /* Chips: ocultos en móvil */
  .hero-strip{display:none}

  /* --- Nosotros móvil: título y bajada antes que la foto --- */
  .about-grid{grid-template-columns:1fr}
  .about-text{order:1}
  .about-media{order:2;margin-top:8px}

  /* --- Footer móvil: una columna, sin espaciador --- */
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid .footer-col:last-child{justify-self:start}
  .footer-spacer{display:none}
  .footer-bottom-inner{padding-bottom:34px}

  /* --- Formulario móvil: una columna --- */
  .contact-form{grid-template-columns:1fr}
}
@media (max-width:520px){
  /* Solo horizontal: no pisar el padding vertical de .hero-content, .hero-strip-inner, .footer-grid, etc. */
  .container{padding-left:20px;padding-right:20px}
  .section{padding-left:20px;padding-right:20px}
  .site-footer,.site-header .header-inner{padding-left:20px;padding-right:20px}
  .stats{grid-template-columns:1fr 1fr}
}

/* Accesibilidad: respeta reduce-motion */
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important}
}