/* ============================================================
   PETROVÁLVULAS C.A. — shared design system
   Color extraído directamente del logo: #880015
   ============================================================ */

:root{
  --maroon:#880015;
  --maroon-deep:#4a000b;
  --maroon-bright:#a80019;
  --ink:#15171a;
  --ink-2:#1e2125;
  --steel:#5a616b;
  --steel-light:#8a9099;
  --line:#c7cad0;
  --line-dark:#31353b;
  --paper:#f3f4f5;
  --white:#ffffff;

  --font-display:'Oswald',sans-serif;
  --font-body:'Source Sans 3',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
::selection{background:var(--maroon);color:var(--white);}

.wrap{max-width:1240px;margin:0 auto;padding:0 32px;}

/* ---------- eyebrow / labels ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--maroon-bright);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:18px;
}
.eyebrow::before{content:'';width:28px;height:1px;background:var(--maroon-bright);}
.eyebrow.on-dark{color:#e8a3ac;}
.eyebrow.on-dark::before{background:#e8a3ac;}

h1,h2,h3{font-family:var(--font-display);font-weight:600;text-transform:uppercase;letter-spacing:.01em;line-height:1.08;}
h1{font-size:clamp(38px,5.4vw,68px);}
h2{font-size:clamp(28px,3.6vw,42px);}
h3{font-size:18px;letter-spacing:.03em;}
.lede{font-size:18px;color:var(--steel);font-weight:400;max-width:60ch;line-height:1.65;}
.on-dark .lede, .lede.on-dark{color:#b7bcc3;}

/* ---------- header ---------- */
header{
  position:relative;
  background:rgba(21,23,26,.97);
  border-bottom:1px solid var(--line-dark);
}
header::before{
  content:'';position:absolute;inset:0;z-index:0;
  background-image:url('watermark-vmp.jpg');
  background-position:center;
  background-repeat:repeat;
  background-size:340px auto;
  opacity:.14;
  mix-blend-mode:luminosity;
  pointer-events:none;
}

.nav-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;padding:14px 32px;max-width:1240px;margin:0 auto;gap:20px;}
.brand{display:flex;align-items:center;}
.brand-card{background:#ffffff;border-radius:16px;padding:12px 24px;display:flex;align-items:center;box-shadow:0 2px 10px rgba(0,0,0,.25);}
.brand-logo-img{height:136px;width:auto;display:block;}
.brand-slogan{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--steel-light);text-transform:uppercase;margin-top:4px;}

.nav-right{display:flex;align-items:center;gap:14px;}
.lang-toggle{display:flex;background:rgba(204,34,34,.1);border:1px solid rgba(168,0,25,.35);border-radius:2px;overflow:hidden;flex:0 0 auto;}
.lang-toggle button{font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.05em;padding:9px 15px;cursor:pointer;border:none;background:transparent;color:var(--steel-light);}
.lang-toggle button.active{background:var(--maroon);color:var(--white);}

.menu-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  background:none;border:1px solid var(--line-dark);border-radius:2px;
  width:46px;height:40px;cursor:pointer;padding:0;align-items:center;flex:0 0 auto;
}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--white);transition:transform .25s,opacity .25s;}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---- desktop: cinta horizontal a todo lo ancho del header ---- */
nav.menu{
  position:relative;z-index:1;
  width:100%;
  background:transparent;border:none;border-top:1px solid var(--line-dark);
  padding:18px 32px;
  display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px 14px;
  opacity:1;visibility:visible;transform:none;
  box-shadow:none;
  transition:none;
}
nav.menu > a, .menu-dropdown-toggle{
  font-family:var(--font-mono);
  font-size:16px;
  font-weight:500;
  letter-spacing:.04em;
  color:#dfe1e4;
  padding:13px 22px;
  border-radius:2px;
  transition:background .15s,color .15s;
  white-space:nowrap;
  background:none;border:none;cursor:pointer;
}
nav.menu > a:hover, nav.menu > a.active,
.menu-dropdown-toggle:hover, .menu-dropdown.open .menu-dropdown-toggle{background:rgba(168,0,25,.15);color:var(--maroon-bright);}

/* ---- submenú "Productos" ---- */
.menu-dropdown{position:relative;}
.menu-dropdown-panel{
  position:absolute;top:calc(100% + 4px);left:50%;transform:translateX(-50%) translateY(-6px);z-index:260;
  background:var(--ink-2);border:1px solid var(--line-dark);border-radius:3px;
  min-width:260px;padding:8px;
  display:flex;flex-direction:column;gap:2px;
  opacity:0;visibility:hidden;
  transition:opacity .18s,transform .18s,visibility .18s;
  box-shadow:0 16px 36px rgba(0,0,0,.4);
}
.menu-dropdown.open .menu-dropdown-panel{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
@media(min-width:961px){
  .menu-dropdown:hover .menu-dropdown-panel{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
}
.menu-dropdown-panel a{
  font-family:var(--font-mono);font-size:14.5px;font-weight:500;letter-spacing:.02em;
  color:#dfe1e4;padding:13px 16px;border-radius:2px;white-space:normal;
  transition:background .15s,color .15s;
}
.menu-dropdown-panel a:hover, .menu-dropdown-panel a.active{background:rgba(168,0,25,.15);color:var(--maroon-bright);}

/* ---- tablet / móvil: el menú se colapsa y empuja el contenido (sin overlay) ---- */
@media(max-width:960px){
  .menu-toggle{display:flex;}
  nav.menu{
    display:none;
    width:100%;
    background:var(--ink-2);border:none;border-top:1px solid var(--line-dark);
    padding:10px 16px;
    flex-direction:column;align-items:stretch;gap:2px;
  }
  nav.menu.open{display:flex;}
  nav.menu > a, .menu-dropdown-toggle{font-size:15px;padding:13px 16px;white-space:normal;text-align:left;width:100%;}
  .menu-dropdown-toggle{display:flex;justify-content:space-between;align-items:center;}
  .menu-dropdown-panel{
    position:static;opacity:1;visibility:visible;transform:none;
    display:none;background:rgba(0,0,0,.2);border:none;box-shadow:none;
    padding:0 0 0 14px;min-width:0;margin-bottom:4px;
  }
  .menu-dropdown.open .menu-dropdown-panel{display:flex;}
  .menu-dropdown-panel a{font-size:14px;padding:12px 14px;}
}

@media(max-width:640px){
  .brand-card{padding:7px 14px;border-radius:9px;}
  .brand-logo-img{height:46px;}
}

/* ---------- hero ---------- */
.hero{background:var(--ink);color:var(--white);position:relative;overflow:hidden;border-bottom:1px solid var(--line-dark);}
.hero-text{padding:100px 32px 56px;max-width:900px;margin:0 auto;text-align:center;}
.hero-text .eyebrow{justify-content:center;}
.hero h1{color:var(--white);}
.hero h1 em{font-style:normal;color:var(--maroon-bright);}
.hero-text .lede{margin-left:auto;margin-right:auto;}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;justify-content:center;}
.btn-primary{
  font-family:var(--font-mono);font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  background:var(--maroon);color:var(--white);padding:15px 26px;border-radius:2px;transition:background .2s;
}
.btn-primary:hover{background:var(--maroon-bright);}
.btn-outline{
  font-family:var(--font-mono);font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  border:1px solid var(--line-dark);color:var(--white);padding:15px 26px;border-radius:2px;transition:border-color .2s,color .2s;
}
.btn-outline:hover{border-color:var(--maroon-bright);color:var(--maroon-bright);}

/* ---- franja de fotos en movimiento continuo ---- */
.hero-marquee{position:relative;width:100%;overflow:hidden;padding:0;margin-top:20px;}
.hero-marquee::before,.hero-marquee::after{
  content:'';position:absolute;top:0;bottom:0;width:90px;z-index:2;pointer-events:none;
}
.hero-marquee::before{left:0;background:linear-gradient(90deg,var(--ink),transparent);}
.hero-marquee::after{right:0;background:linear-gradient(270deg,var(--ink),transparent);}
.marquee-track{display:flex;width:max-content;animation:marquee-scroll 42s linear infinite;}
.marquee-track img{height:260px;width:auto;display:block;margin-right:6px;filter:saturate(1.05);}

/* ---- carrete de una sola foto, con transición entre imágenes ---- */
.photo-slideshow{position:sticky;top:24px;border-radius:4px;overflow:hidden;border:1px solid var(--line);min-height:560px;}
.photo-slideshow img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;
  opacity:0;transition:opacity 1.2s ease;
}
.photo-slideshow img.active{opacity:1;}
@media(max-width:900px){.photo-slideshow{position:relative;top:0;min-height:320px;}}

/* ---- mini-galería al pie de cada paso del proceso ---- */
.process-step{display:flex;flex-direction:column;}
.process-step-photos{
  margin-top:auto;position:relative;border-radius:3px;overflow:hidden;
  border:1px solid var(--line-dark);height:150px;background:var(--ink-2);
}
.process-step-photos img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;
  opacity:0;transition:opacity 1s ease;
}
.process-step-photos img.active{opacity:1;}
.process-list{list-style:none;margin:10px 0 14px;}
.process-list li{font-size:12.5px;color:var(--steel);line-height:1.55;padding:4px 0 4px 14px;position:relative;}
.process-list li::before{content:'';position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--maroon);}
@keyframes marquee-scroll{from{transform:translateX(0);}to{transform:translateX(-50%);}}

/* dimension-line frame around the hero graphic */
.dim-frame{position:relative;padding:34px;}
.dim-frame svg{width:100%;height:auto;}
.dim-tick{position:absolute;font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--steel-light);}
.dim-frame::before,.dim-frame::after{content:'';position:absolute;border-color:var(--line-dark);}
.dim-frame::before{top:0;left:0;right:0;height:1px;background:var(--line-dark);}
.dim-frame::after{bottom:0;left:0;right:0;height:1px;background:var(--line-dark);}
.dim-label{font-family:var(--font-mono);font-size:11px;color:var(--steel-light);letter-spacing:.08em;text-align:center;margin-top:14px;}
.dim-label b{color:var(--maroon-bright);font-weight:600;}

/* ---------- generic section ---------- */
section{padding:96px 0;}
.section-light{background:var(--white);}
.section-paper{background:var(--paper);}
.section-dark{background:var(--ink);color:var(--white);}
.section-maroon{background:var(--maroon);color:var(--white);}
.section-head{max-width:680px;margin-bottom:56px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- problem/solution grid ---------- */
.ps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.ps-card{background:var(--white);padding:38px 32px;}
.ps-num{font-family:var(--font-mono);font-size:12px;color:var(--maroon);letter-spacing:.1em;margin-bottom:18px;}
.ps-problem{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--steel);margin-bottom:8px;}
.ps-problem-text{font-size:15px;color:var(--ink);margin-bottom:22px;line-height:1.6;}
.ps-solution{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--maroon);margin-bottom:8px;}
.ps-solution-text{font-size:15px;color:var(--steel);line-height:1.6;}

/* ---- bloques técnicos extendidos (problema/solución detallado) ---- */
.tech-block{padding:52px 0;border-top:1px solid var(--line);}
.tech-block:first-of-type{border-top:none;padding-top:0;}
.tech-block-head{display:flex;align-items:baseline;gap:18px;margin-bottom:30px;flex-wrap:wrap;}
.tech-block-head .ps-num{margin-bottom:0;font-size:14px;}
.tech-block-head h3{font-size:clamp(19px,2.2vw,24px);color:var(--ink);}
.tech-col p{font-size:15px;color:var(--steel);line-height:1.7;margin-bottom:16px;}
.tech-label{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;margin:22px 0 10px;}
.tech-label:first-child{margin-top:0;}
.tech-label.is-problem{color:var(--steel);}
.tech-label.is-solution{color:var(--maroon);}
.tech-list{list-style:none;margin-bottom:6px;}
.tech-list li{display:flex;gap:12px;padding:8px 0;font-size:14.5px;color:var(--ink);line-height:1.55;}
.tech-list li::before{content:'';flex:0 0 6px;height:6px;border-radius:50%;background:var(--steel-light);margin-top:8px;}
.tech-list.is-benefits li::before{background:var(--maroon);}
.tech-block-close{font-size:14.5px;color:var(--steel);font-style:italic;margin-top:26px;padding-top:22px;border-top:1px dashed var(--line);}
@media(max-width:900px){.tech-block{padding:40px 0;}}

/* ---- valores (misión y visión) — tarjetas 2x2 con párrafo completo ---- */
.values-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.value-card{background:var(--white);padding:40px 36px;}
.value-num{font-family:var(--font-mono);font-size:13px;color:var(--maroon);letter-spacing:.08em;margin-bottom:16px;}
.value-card h3{font-size:20px;margin-bottom:14px;}
.value-card p{font-size:15px;color:var(--steel);line-height:1.75;}
@media(max-width:800px){.values-grid{grid-template-columns:1fr;}}
@media(max-width:900px){.ps-grid{grid-template-columns:1fr;}}

/* ---------- nameplate cards (products/services) ---------- */
.plate-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.plate{
  background:var(--ink-2);border:1px solid var(--line-dark);border-radius:3px;padding:32px 28px;
  transition:border-color .25s,transform .25s;position:relative;
}
.plate:hover{border-color:var(--maroon);transform:translateY(-4px);}
.plate-rivet{position:absolute;width:6px;height:6px;border-radius:50%;background:var(--line-dark);}
.plate-rivet.tl{top:14px;left:14px;} .plate-rivet.tr{top:14px;right:14px;}
.plate-rivet.bl{bottom:14px;left:14px;} .plate-rivet.br{bottom:14px;right:14px;}
.plate-code{font-family:var(--font-mono);font-size:11px;color:var(--maroon-bright);letter-spacing:.1em;margin-bottom:14px;}
.plate h3{color:var(--white);margin-bottom:14px;font-size:23px;line-height:1.2;}
.plate p{font-size:14.5px;color:#aeb3ba;line-height:1.65;margin-bottom:22px;}
.plate-link{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--white);display:inline-flex;align-items:center;gap:8px;}
.plate-link::after{content:'→';transition:transform .2s;}
.plate:hover .plate-link::after{transform:translateX(4px);}
@media(max-width:900px){.plate-grid{grid-template-columns:1fr;}}

/* ---------- placeholder blocks (for future real photos) ---------- */
.ph-block{
  background:repeating-linear-gradient(135deg,var(--paper),var(--paper) 10px,#e9eaeb 10px,#e9eaeb 20px);
  border:1px dashed var(--line);border-radius:3px;
  display:flex;align-items:center;justify-content:center;text-align:center;padding:40px;
  color:var(--steel);font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;text-transform:uppercase;
  min-height:220px;
}

/* ---------- content page hero (subpages) ---------- */
.page-hero{background:var(--ink);color:var(--white);padding:76px 0 60px;border-bottom:1px solid var(--line-dark);}
.page-hero .lede{margin-top:14px;}
.breadcrumb{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--steel-light);margin-bottom:20px;}
.breadcrumb a{color:var(--steel-light);}
.breadcrumb a:hover{color:var(--maroon-bright);}

/* ---------- two-col content ---------- */
.two-col{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start;}
@media(max-width:900px){.two-col{grid-template-columns:1fr;}}
.spec-list{margin-top:28px;border-top:1px solid var(--line);}
.spec-row{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14.5px;}
.spec-row dt{color:var(--steel);font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;text-transform:uppercase;}
.spec-row dd{font-weight:600;text-align:right;}

.check-list{list-style:none;margin-top:22px;}
.check-list li{display:flex;gap:14px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink);}
.check-list li::before{content:'';flex:0 0 8px;height:8px;background:var(--maroon);margin-top:7px;}

/* ---------- process steps ---------- */
.process-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;}
.process-step{padding:0 24px 0 0;position:relative;}
.process-step:not(:last-child)::after{content:'';position:absolute;top:14px;right:0;width:24px;height:1px;background:var(--line-dark);}
.step-num{font-family:var(--font-mono);font-size:13px;color:var(--maroon-bright);margin-bottom:14px;}
.process-step h3{font-size:15px;color:var(--white);margin-bottom:10px;}
.process-step p{font-size:13.5px;color:#aeb3ba;line-height:1.6;}
@media(max-width:900px){.process-row{grid-template-columns:1fr;gap:32px;}.process-step:not(:last-child)::after{display:none;}}

/* ---------- CTA band ---------- */
.cta-band{background:var(--maroon);color:var(--white);padding:64px 0;}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:28px;}
.cta-band h2{font-size:clamp(24px,3vw,34px);}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;}}
.info-row{border-top:1px solid var(--line);padding:18px 0;}
.info-row dt{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--maroon);margin-bottom:6px;}
.info-row dd{font-size:16px;}
form.quote-form{display:flex;flex-direction:column;gap:18px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
@media(max-width:600px){.form-row{grid-template-columns:1fr;}}
.field label{display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--steel);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);background:var(--paper);padding:13px 14px;font-family:var(--font-body);font-size:15px;color:var(--ink);border-radius:2px;
}
.field textarea{resize:vertical;min-height:120px;}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--maroon);outline-offset:0;border-color:var(--maroon);}
.submit-btn{
  font-family:var(--font-mono);font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  background:var(--maroon);color:var(--white);padding:16px 26px;border:none;border-radius:2px;cursor:pointer;transition:background .2s;
}
.submit-btn:hover{background:var(--maroon-bright);}

/* ---------- footer ---------- */
footer{background:var(--ink);border-top:1px solid var(--line-dark);color:#8a9099;padding:52px 0 32px;position:relative;overflow:hidden;}
footer::before{
  content:'';position:absolute;inset:0;z-index:0;
  background-image:url('watermark-vmp.jpg');
  background-position:right center;
  background-repeat:no-repeat;
  background-size:auto 220%;
  opacity:.14;
  mix-blend-mode:luminosity;
  pointer-events:none;
}
footer > .wrap{position:relative;z-index:1;}
.footer-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:48px;margin-bottom:36px;}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:10px;}
.footer-brand .brand-card{padding:12px 22px;border-radius:14px;}
.footer-brand-logo-img{height:104px;width:auto;display:block;}
.footer-brand strong{font-family:var(--font-display);color:var(--white);font-size:18px;letter-spacing:.02em;text-transform:uppercase;display:block;}
.footer-brand-sub{font-family:var(--font-mono);font-size:10px;color:var(--steel-light);letter-spacing:.08em;text-transform:uppercase;}
.footer-contact{font-size:13.5px;line-height:1.9;}
.footer-contact .fc-label{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--maroon-bright);margin-top:14px;display:block;}
.footer-contact .fc-label:first-child{margin-top:0;}
.footer-nav{display:flex;flex-direction:column;gap:10px;}
.footer-nav a{font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:#8a9099;transition:color .2s;}
.footer-nav a:hover{color:var(--maroon-bright);}
.footer-bottom{border-top:1px solid var(--line-dark);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;}
.footer-legal-links a{color:#8a9099;}
.footer-legal-links a:hover{color:var(--maroon-bright);}
.footer-legal-links span{margin:0 8px;color:var(--line-dark);}

@media(max-width:700px){
  .hero-text{padding:64px 20px 40px;}
  .marquee-track img{height:170px;}
  .two-col{gap:40px;}
  section{padding:64px 0;}
  .wrap{padding:0 20px;}
  .footer-top{flex-direction:column;gap:32px;}
}