/* =========================================================
   SERYSE MÉXICO — Design System v3 (ice blue / light tech)
   Fondo azul claro para que el logo corporativo se lea
   en sus colores originales, sin placas ni filtros.
   ========================================================= */

:root{
  --bg: #F1F6FC;            /* fondo base: azul hielo */
  --bg-2: #E3ECF8;          /* fondo alterno */
  --panel: #FFFFFF;         /* tarjetas */
  --line: rgba(0,51,153,0.14);
  --line-soft: rgba(0,51,153,0.09);

  --text: #0C1B33;          /* tinta principal */
  --text-soft: #46587A;     /* tinta secundaria */

  --navy: #003399;          /* azul de marca (logo) */
  --navy-deep: #001F5C;
  --accent: #0A4FEB;        /* azul eléctrico (CTA) */
  --accent-2: #2E6BFF;
  --cyan: #74CEE6;

  --white: #FFFFFF;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 12px;
  --wrap: 1180px;

  --card-shadow: 0 12px 30px -16px rgba(0,31,92,0.22);
  --card-shadow-hover: 0 22px 44px -18px rgba(10,79,235,0.35);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
h1,h2,h3,h4{ font-family: var(--font-display); color: var(--navy-deep); margin: 0; line-height: 1.15; }
p{ margin: 0 0 1em; }
ul{ margin: 0; padding: 0; list-style: none; }
.wrap{ max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.br-desktop{ display: none; }
@media (min-width: 860px){ .br-desktop{ display: inline; } }

:focus-visible{ outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* ---------- Reveal on scroll ---------- */
.js-reveal .reveal{
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s ease, transform .6s ease;
}
.js-reveal .reveal.in{ opacity: 1; transform: none; }

/* =============== BOTONES =============== */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--white);
  box-shadow: 0 10px 26px -10px rgba(10,79,235,0.55);
}
.btn-primary:hover{ box-shadow: 0 14px 32px -10px rgba(10,79,235,0.7); }
.btn-ghost{
  background: rgba(255,255,255,0.6);
  color: var(--navy-deep);
  border-color: rgba(0,51,153,0.3);
}
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); }
.btn-icon{ width: 18px; height: 18px; }

/* =============== HEADER =============== */
.site-header{
  position: sticky; top: 0; z-index: 100;
  background: rgba(241,246,252,0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner{
  display: flex; align-items: center; justify-content: space-between;
  min-height: 86px;
  padding-top: 12px; padding-bottom: 12px;
  gap: 24px;
}
.brand{ display: inline-flex; align-items: center; }
.brand-logo{ height: 54px; width: auto; }
.main-nav{ display: flex; align-items: center; gap: 30px; flex-wrap: nowrap; }
.main-nav a{
  font-size: 0.93rem; font-weight: 500;
  color: var(--text-soft);
  transition: color .2s ease;
  white-space: nowrap;
}
.main-nav a:hover{ color: var(--accent); }
.nav-cta{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--white) !important;
  padding: 11px 22px; border-radius: 8px; font-weight: 600 !important;
  box-shadow: 0 8px 20px -10px rgba(10,79,235,0.55);
}
.nav-cta:hover{ transform: translateY(-1px); }

.nav-toggle{
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 10px;
}
.nav-toggle span{ width: 26px; height: 2px; background: var(--navy-deep); border-radius: 2px; }

/* =============== HERO =============== */
.hero{
  position: relative;
  overflow: hidden;
  background: var(--bg);
  padding: 100px 0 84px;
  min-height: 680px;
  display: flex;
  align-items: center;
}
.hero-photo{
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center 40%;
  filter: saturate(1.05) contrast(1.04);
  opacity: 0.9;
}
.hero-scrim{
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(241,246,252,0.97) 0%, rgba(241,246,252,0.88) 38%, rgba(241,246,252,0.35) 72%, rgba(241,246,252,0.12) 100%),
    linear-gradient(180deg, rgba(241,246,252,0.55) 0%, rgba(241,246,252,0.1) 40%, rgba(241,246,252,0.65) 85%, var(--bg) 100%);
}
.hero-grid-bg{
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,51,153,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,51,153,0.05) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(ellipse at 25% 35%, black 5%, transparent 70%);
}
.hero-inner{ position: relative; z-index: 2; max-width: 860px; }
.hero-logo{
  height: 108px;
  width: auto;
  margin-bottom: 34px;
  filter: drop-shadow(0 10px 24px rgba(0,31,92,0.18));
}
.hero h1{
  font-size: clamp(2.05rem, 4.4vw, 3.25rem);
  font-weight: 600;
  margin-bottom: 22px;
  letter-spacing: -0.01em;
}
.hero-lead{
  color: var(--text-soft);
  font-size: 1.12rem;
  max-width: 640px;
  margin-bottom: 36px;
}
.hero-actions{ display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 58px; }

.hero-stats{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.stat{ display: flex; flex-direction: column; gap: 6px; }
.stat-num{
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.8rem;
  font-weight: 500;
}
.stat-label{ color: var(--text-soft); font-size: 0.85rem; line-height: 1.45; }

/* =============== FABRICANTES =============== */
.brands{
  background: var(--navy-deep);
  padding: 44px 0;
}
.brands-title{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9FB4D9;
  text-align: center;
  margin-bottom: 26px;
}
.brands-strip{
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(28px, 6vw, 72px);
  flex-wrap: wrap;
}
.brands-strip span{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  letter-spacing: 0.06em;
  color: #C9D8F0;
  transition: color .2s ease, text-shadow .2s ease;
}
.brands-strip span:hover{
  color: var(--white);
  text-shadow: 0 0 22px rgba(116,206,230,0.5);
}
.brands-note{
  text-align: center;
  font-size: 0.76rem;
  color: #9FB4D9;
  opacity: 0.8;
  margin: 24px 0 0;
}

/* =============== SECCIONES (shared) =============== */
.section{ padding: 100px 0; background: var(--bg); }
.section-dark{ background: var(--bg-2); }
.section-eyebrow{
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}
.section-title{
  font-size: clamp(1.6rem, 3.1vw, 2.35rem);
  max-width: 720px;
  margin-bottom: 16px;
}
.section-lead{
  color: var(--text-soft);
  max-width: 640px;
  font-size: 1.05rem;
  margin-bottom: 52px;
}

/* =============== SERVICIOS =============== */
.services-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.service-card{
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.service-card:hover{
  transform: translateY(-4px);
  border-color: rgba(10,79,235,0.35);
  box-shadow: var(--card-shadow-hover);
}
.service-media{
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-2);
}
.service-media img{
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.05) contrast(1.04);
  transition: transform .5s ease;
}
.service-card:hover .service-media img{ transform: scale(1.06); }
.service-badge{
  position: absolute; left: 16px; bottom: 14px; z-index: 2;
  width: 46px; height: 46px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(0,51,153,0.15);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px -6px rgba(0,31,92,0.35);
}
.service-badge svg{
  width: 25px; height: 25px;
  fill: none; stroke: var(--accent);
  stroke-width: 2.1; stroke-linecap: round; stroke-linejoin: round;
}
.service-body{ padding: 26px 24px 28px; }
.service-card h3{ font-size: 1.08rem; margin-bottom: 10px; }
.service-card p{ color: var(--text-soft); font-size: 0.92rem; margin: 0; }

/* =============== SECTORES =============== */
.sectors-grid{
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}
.sector-card{
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 30px 22px;
  box-shadow: var(--card-shadow);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.sector-card:hover{
  transform: translateY(-4px);
  border-color: rgba(10,79,235,0.35);
  box-shadow: var(--card-shadow-hover);
}
.sector-icon{
  width: 42px; height: 42px;
  margin-bottom: 18px;
  fill: none; stroke: var(--accent);
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
.sector-card h3{ font-size: 1rem; margin-bottom: 8px; }
.sector-card p{ color: var(--text-soft); font-size: 0.86rem; margin: 0; }

/* =============== MANTENIMIENTO =============== */
.feature-om{ background: var(--bg); }
.om-grid{
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.om-photo{
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  max-width: 520px;
  position: relative;
  border: 1px solid var(--line-soft);
  box-shadow: 0 26px 54px -24px rgba(0,31,92,0.4);
}
.om-photo img{
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.05) contrast(1.03);
}
.om-copy p{ color: var(--text-soft); }
.om-list{ display: flex; flex-direction: column; gap: 14px; margin: 30px 0 34px; }
.om-list li{
  color: var(--text-soft);
  font-size: 0.96rem;
  padding-left: 24px;
  position: relative;
}
.om-list li::before{
  content: '';
  position: absolute; left: 0; top: 8px;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
  transform: rotate(45deg);
}
.om-list strong{ color: var(--navy-deep); }

/* =============== CASOS =============== */
.cases-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.case-card{
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--card-shadow);
  transition: transform .25s ease, box-shadow .25s ease;
}
.case-card:hover{
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}
.case-card h3{ font-size: 1.05rem; margin-bottom: 10px; }
.case-card p{ color: var(--text-soft); font-size: 0.9rem; margin: 0; }

/* =============== POR QUÉ SERYSE =============== */
.why-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.why-item{
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 32px 30px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform .25s ease, box-shadow .25s ease;
}
.why-item:hover{ transform: translateY(-3px); box-shadow: var(--card-shadow-hover); }
.why-num{
  font-family: var(--font-mono);
  font-size: 2.6rem;
  color: rgba(10,79,235,0.12);
  position: absolute;
  top: 12px; right: 22px;
  font-weight: 500;
}
.why-item h3{ font-size: 1.1rem; margin-bottom: 10px; max-width: 85%; }
.why-item p{ color: var(--text-soft); font-size: 0.93rem; margin: 0; }

/* =============== CLIENTES =============== */
.clients-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.client-card{
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 18px;
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--card-shadow);
  transition: transform .2s ease, box-shadow .25s ease;
}
.client-card:hover{ transform: translateY(-3px); box-shadow: var(--card-shadow-hover); }
.client-card img{
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.client-card-dark{ background: #0A1730; border-color: #0A1730; }
.client-card-mono{ gap: 14px; }
.client-mark{
  flex-shrink: 0;
  width: 42px; height: 42px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--navy-deep), var(--navy));
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  display: flex; align-items: center; justify-content: center;
}
.client-name{
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--navy-deep);
  font-size: 0.92rem;
}
.clients-note{
  margin-top: 22px;
  font-size: 0.78rem;
  color: var(--text-soft);
  opacity: 0.75;
}

/* =============== NOSOTROS =============== */
.nosotros-grid{
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 64px;
  align-items: start;
}
.nosotros-copy p{ color: var(--text-soft); }
.mv-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 32px; }
.mv-card{
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--card-shadow);
}
.mv-card h4{ font-size: 0.98rem; color: var(--accent); margin-bottom: 10px; }
.mv-card p{ font-size: 0.9rem; color: var(--text-soft); margin: 0; }

.valores{ display: grid; grid-template-columns: 1fr; gap: 20px; align-content: start; }
.valor-item{
  border-left: 3px solid var(--accent);
  padding: 4px 0 4px 20px;
}
.valor-tag{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.valor-item p{ color: var(--text-soft); font-size: 0.9rem; margin: 0; }

/* =============== GALERÍA =============== */
.gallery-grid{
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: 170px 170px;
  gap: 12px;
}
.gallery-item{
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  grid-column: span 2;
  border: 1px solid var(--line-soft);
  box-shadow: var(--card-shadow);
}
.gallery-item:nth-child(1),
.gallery-item:nth-child(4){ grid-column: span 3; }
.gallery-item img{
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.08) contrast(1.04);
  transition: transform .5s ease;
}
.gallery-item:hover img{ transform: scale(1.06); }
.gallery-item::after{
  content: attr(data-caption);
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--white);
  background: linear-gradient(0deg, rgba(0,31,92,0.85), transparent);
}

/* =============== CONTACTO =============== */
.contacto-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.contact-list{ margin-top: 28px; display: flex; flex-direction: column; gap: 20px; }
.contact-list li{ display: flex; flex-direction: column; gap: 4px; }
.contact-label{
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.contact-list a{ font-size: 1.05rem; font-weight: 600; color: var(--navy-deep); transition: color .2s ease; }
.contact-list a:hover{ color: var(--accent); }
.contact-list span:not(.contact-label){ color: var(--text-soft); }

.contact-form{
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 34px;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.contact-form label{ font-size: 0.85rem; font-weight: 600; color: var(--text-soft); margin-top: 14px; }
.contact-form input,
.contact-form textarea{
  font-family: var(--font-body);
  font-size: 0.98rem;
  padding: 13px 15px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  resize: vertical;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.contact-form input:focus,
.contact-form textarea:focus{
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px rgba(10,79,235,0.15);
}
.contact-form .btn{ margin-top: 22px; }
.form-note{ font-size: 0.88rem; color: var(--accent); margin: 14px 0 0; min-height: 1.2em; }
.form-note.error{ color: #C62828; }
.hp-field{ position: absolute !important; left: -9999px !important; height: 1px; width: 1px; opacity: 0; }

/* =============== FOOTER =============== */
.site-footer{
  background: var(--bg-2);
  border-top: 1px solid var(--line-soft);
  padding: 60px 0 0;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: 40px;
  padding-bottom: 46px;
}
.footer-logo{
  height: 56px; width: auto;
  margin-bottom: 16px;
}
.footer-brand p{ color: var(--text-soft); font-size: 0.88rem; max-width: 300px; }
.footer-col{ display: flex; flex-direction: column; gap: 10px; }
.footer-col h4{
  font-size: 0.82rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--navy);
  margin-bottom: 6px;
}
.footer-col a, .footer-col span{
  color: var(--text-soft);
  font-size: 0.9rem;
  transition: color .2s ease;
}
.footer-col a:hover{ color: var(--navy-deep); }
.footer-bottom{
  border-top: 1px solid var(--line-soft);
  padding-top: 22px;
  padding-bottom: 22px;
}
.footer-bottom p{ color: var(--text-soft); font-size: 0.8rem; margin: 0; opacity: 0.8; }

/* =============== WHATSAPP FAB =============== */
.whatsapp-fab{
  position: fixed;
  right: 24px; bottom: 24px;
  width: 58px; height: 58px;
  background: #25D366;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px -6px rgba(0,0,0,0.35);
  z-index: 200;
  transition: transform .2s ease;
}
.whatsapp-fab:hover{ transform: scale(1.08); }
.whatsapp-fab svg{ width: 30px; height: 30px; fill: var(--white); }

/* =============== RESPONSIVE =============== */
@media (max-width: 1080px){
  .sectors-grid{ grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 980px){
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
  .cases-grid{ grid-template-columns: repeat(2, 1fr); }
  .clients-grid{ grid-template-columns: repeat(3, 1fr); }
  .hero-stats{ grid-template-columns: repeat(2, 1fr); }
  .nosotros-grid{ grid-template-columns: 1fr; }
  .contacto-grid{ grid-template-columns: 1fr; }
  .om-grid{ grid-template-columns: 1fr; }
  .om-photo{ aspect-ratio: 16/10; max-width: 520px; }
  .why-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .gallery-grid{ grid-template-columns: repeat(3, 1fr); grid-template-rows: 150px 150px; }
}

@media (max-width: 760px){
  .main-nav{
    position: fixed; top: 86px; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 22px 24px 30px;
    gap: 18px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
  }
  .main-nav.open{ opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav-toggle{ display: flex; }
  .nav-cta{ width: 100%; text-align: center; }
  .brand-logo{ height: 42px; }

  .hero{ padding: 72px 0 56px; min-height: auto; }
  .hero-logo{ height: 76px; }
  .hero-stats{ grid-template-columns: 1fr 1fr; gap: 22px; }
  .services-grid{ grid-template-columns: 1fr; }
  .sectors-grid{ grid-template-columns: 1fr 1fr; }
  .cases-grid{ grid-template-columns: 1fr; }
  .clients-grid{ grid-template-columns: repeat(2, 1fr); }
  .mv-grid{ grid-template-columns: 1fr; }
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(3, 135px); }
  .gallery-item, .gallery-item:nth-child(1), .gallery-item:nth-child(4){ grid-column: span 1; }
  .footer-grid{ grid-template-columns: 1fr; gap: 28px; }
  .section{ padding: 66px 0; }
}