/* ============================================================
   servicios-base.css  —  Concepto Servicios Especializados
   VMS Energy — Capa 2/3: tokens.css → servicios-base.css → <style>
   Páginas: lp-estudios-electricos-industriales, lp-turbogeneradores-woodward,
            lp-mantenimiento-predictivo, lp-mantenimiento-oil-gas,
            lp-deteccion-control-supresion-fuego
   Identidad: índigo — expertise técnico diferenciado, urgencia controlada
   ============================================================ */

/* ── RESET ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0 }
html { scroll-behavior: smooth }
body {
  font-family: 'Roboto Condensed', system-ui, Arial, sans-serif;
  color: #0F172A;
  background: #fff;
  line-height: 1.6;
}
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px }
img { max-width: 100%; display: block }
a { text-decoration: none; color: inherit }
p { margin: 0 }

/* ── HEADER / NAV ───────────────────────────────────────────── */
header {
  position: sticky; top: 0; z-index: 60;
  background: #fff;
  border-bottom: 1px solid rgba(23,44,81,.08);
  backdrop-filter: saturate(180%) blur(8px);
}
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 14px 0 }
.brand__logo {
  width: clamp(168px,18vw,210px); height: clamp(54px,6vw,66px);
  border-radius: 10px; background: #fff;
  display: grid; place-items: center; overflow: hidden;
  border: 1px solid rgba(23,44,81,.14);
}
.brand__logo img { max-width: 94%; max-height: 88%; width: auto; height: auto; object-fit: contain; display: block }
nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 18px; flex-wrap: wrap; align-items: center }
nav a { color: #172C51; text-decoration: none; font-weight: 700 }
.cta-header { background: #0F4C81; color: #fff !important; padding: .35rem .9rem; border-radius: 6px }
.menu-toggle {
  display: none; border: 1px solid rgba(23,44,81,.14); background: #fff;
  padding: .3rem .7rem; border-radius: 6px; cursor: pointer; font-weight: 700; color: #172C51;
}
.nav-item--has-submenu { position: relative }
.nav-item--has-submenu::after { content: ""; position: absolute; left: 0; right: 0; top: 100%; height: 12px }
.submenu {
  margin: 0; padding: 10px 12px; position: absolute; top: 100%; left: 0;
  min-width: 320px; background: #fff; border: 1px solid rgba(23,44,81,.14);
  border-radius: 12px; box-shadow: 0 14px 30px rgba(8,28,54,.12); display: none; z-index: 60;
}
.nav-item--has-submenu:hover .submenu,
.nav-item--has-submenu:has(:focus-visible) .submenu { display: block }
.nav-item--has-submenu:hover .submenu--mega,
.nav-item--has-submenu:has(:focus-visible) .submenu--mega { display: flex }
@media (min-width: 681px) {
  .nav-item--has-submenu:has(~ .nav-item--has-submenu:hover) .submenu,
  .nav-item--has-submenu:has(~ .nav-item--has-submenu :focus-visible) .submenu { display: none }
}
.submenu__group + .submenu__group { margin-top: 10px; padding-top: 10px; border-top: 1px solid rgba(23,44,81,.1) }
.submenu__title { display: block; color: #0f4c81; font-size: .76rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; margin: 0 0 6px; text-decoration: none }
.submenu__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px }
.submenu__list a { display: block; color: #12365f; font-weight: 600; font-size: .9rem; line-height: 1.25; padding: 3px 0 }
.submenu--mega { min-width: 500px; gap: 0 }
.submenu--mega .submenu__group { flex: 1; min-width: 0 }
.submenu--mega .submenu__group + .submenu__group { margin-top: 0; padding-top: 0; border-top: none; padding-left: 14px; border-left: 1px solid rgba(23,44,81,.1) }

/* ── HERO ───────────────────────────────────────────────────── */
/* Default: flat gradient hero (Turbogeneradores, Predictivo)
   Image hero: page sets --serv-hero-img + --serv-hero-before-display:block
               and --serv-hero-gradient-bg:transparent             */
.hero {
  position: relative; isolation: isolate;
  background: var(--serv-hero-gradient-bg, var(--concept-hero-gradient));
  color: #fff;
  min-height: 400px;
  display: flex; align-items: center;
  padding: 72px 0 64px;
}
/* El velo indigo de plantilla (#1E1B4B/#3730A3/#4F46E5) se retiro el
   26-ago-2026. Las paginas con hero fotografico usan `.hero--photo`
   con `--hero-image`, definido en vms-core.css con los azules VMS. */
.hero-eyebrow {
  font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--concept-hero-tag-text); margin-bottom: 14px;
}
.hero h1 { font-size: clamp(1.8rem,4vw,2.8rem); font-weight: 900; line-height: 1.18; margin-bottom: 16px }
.hero h1 em { font-style: normal; color: var(--concept-kpi-val) }
.hero p { font-size: 1.08rem; color: var(--text-on-dark, #DBEAFE); max-width: 700px; margin-bottom: 28px }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px }
.hero-stats { display: flex; gap: 10px; flex-wrap: wrap }
.hero-stat {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15);
  border-radius: 999px; padding: .3rem .9rem; font-size: .82rem; font-weight: 600; color: #e2e8f0;
}

/* ── BUTTONS ────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: 10px; padding: .65rem 1.4rem;
  font-weight: 700; text-decoration: none; font-size: .95rem;
  border: 1px solid transparent; transition: opacity .2s;
}


.btn--ghost { background: transparent; border-color: rgba(255,255,255,.35); color: #fff }
.btn--ghost:hover { background: rgba(255,255,255,.08) }
.btn--outline { background: transparent; border-color: var(--concept-primary); color: var(--concept-primary) }
.btn--outline:hover { background: var(--concept-accent-light) }

/* ── KPI STRIP ──────────────────────────────────────────────── */
.kpi-strip { background: var(--concept-darker); padding: 20px 0 }
.kpi-strip .container { display: flex; gap: 0; justify-content: space-around; flex-wrap: wrap }
.kpi { text-align: center; padding: 12px 18px }
.kpi__val { font-size: 1.6rem; font-weight: 900; color: var(--concept-kpi-val); line-height: 1 }
.kpi__lbl { font-size: .72rem; color: var(--concept-kpi-lbl); margin-top: 4px; text-transform: uppercase; letter-spacing: .06em }

/* ── SECTIONS ───────────────────────────────────────────────── */
.section { padding: 64px 0 }
.section--alt { background: var(--concept-accent-light) }

/* ── SERVICE GRID ───────────────────────────────────────────── */
.svc-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px }
.svc-card { border: 1px solid rgba(23,44,81,.14); border-radius: 14px; padding: 24px; background: #fff; transition: box-shadow .2s }
.svc-card:hover { box-shadow: 0 8px 24px rgba(9,32,58,.1) }
.svc-card__icon { font-size: 2rem; margin-bottom: 10px }
.svc-card__title { font-size: 1rem; font-weight: 800; color: #172C51; margin-bottom: 8px }
.svc-card__norm { font-size: .75rem; font-weight: 700; color: var(--concept-primary); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .05em }
.svc-card__desc { font-size: .88rem; color: #475569; line-height: 1.55 }

/* ── REF GRID ───────────────────────────────────────────────── */






/* ── PROCESS STEPS ──────────────────────────────────────────── */
.process-steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; counter-reset: step }
.step { background: #fff; border: 1px solid rgba(23,44,81,.14); border-radius: 14px; padding: 22px 18px; position: relative; text-align: center }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--concept-primary); color: #fff;
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: .85rem;
}
.step__title { font-weight: 800; color: #172C51; margin-bottom: 8px; font-size: .95rem }
.step__desc { font-size: .84rem; color: #475569; line-height: 1.5 }

/* ── FAQ ────────────────────────────────────────────────────── */
/* Variante simple — details genérico (Turbogeneradores, Predictivo) */
.faq-list { display: grid; gap: 14px; max-width: 800px }
details { border: 1px solid rgba(23,44,81,.14); border-radius: 10px; padding: 16px 20px }
details[open] { background: var(--concept-accent-light) }
summary { font-weight: 700; cursor: pointer; color: #172C51; font-size: .95rem; list-style: none }
summary::-webkit-details-marker { display: none }
details p { margin-top: 10px; color: #475569; font-size: .9rem; line-height: 1.6 }
/* Variante expandida — details.faq (Estudios Eléctricos) */
details.faq {
  border: 1px solid rgba(23,44,81,.14); border-radius: 12px;
  margin-bottom: 9px; background: #fff; overflow: hidden; padding: 0;
}
details.faq[open] { border-color: rgba(15,76,129,.3) }
details.faq summary {
  padding: 14px 18px; font-weight: 700; font-size: .95rem; color: #172C51;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
details.faq summary::after { content: "+"; font-size: 1.3rem; font-weight: 400; color: var(--concept-primary); flex-shrink: 0 }
details.faq[open] summary::after { content: "−" }
.faq-body { padding: 0 18px 16px; color: #374151; font-size: .91rem; line-height: 1.6 }

/* ── CTA BAND ───────────────────────────────────────────────── */
.cta-band {
  background: linear-gradient(135deg, var(--concept-darker), var(--concept-primary));
  padding: 52px 0; text-align: center; color: #fff;
}
.cta-band h2 { margin: 0 0 10px; font-size: clamp(22px,3vw,34px) }
.cta-band p { margin: 0 0 24px; color: var(--concept-kpi-val); font-size: clamp(14px,1.5vw,17px) }
.cta-band-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap }

/* ── STICKY ─────────────────────────────────────────────────── */
.sticky-wa { position: fixed; bottom: 80px; right: 20px; z-index: 200 }
.sticky-wa a { display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; background: #25D366; border-radius: 50%; box-shadow: 0 4px 12px rgba(0,0,0,.25); text-decoration: none }
.sticky-wa svg { width: 26px; height: 26px; fill: #fff }
.sticky-cta { position: fixed; bottom: 20px; right: 20px; z-index: 200 }
.sticky-cta a { background: var(--concept-primary); color: #fff; padding: .55rem 1.1rem; border-radius: 999px; font-weight: 700; font-size: .85rem; text-decoration: none; box-shadow: 0 4px 14px rgba(15,76,129,.35); display: inline-flex; align-items: center; gap: 8px }

/* ── FOOTER ─────────────────────────────────────────────────── */
.foot { background: #0f172a; color: #94a3b8; padding: 0 }
.foot-link { color: #94a3b8; text-decoration: none }
.foot-link:hover { color: #fff }
#footer h4 { margin: 0 0 10px; font-size: 1rem; color: #fff }
#footer ul { margin: 0; padding: 0; list-style: none; font-size: 14px; line-height: 1.7 }
#footer .container { display: grid; grid-template-columns: 1.25fr 1fr 1fr 1fr 1fr; gap: 18px; padding: 40px 0; align-items: start }
.foot-social__link { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; background: rgba(255,255,255,.08); border-radius: 50% }
.foot-social__link svg { width: 16px; height: 16px; fill: #94a3b8 }
.foot-note { border-top: 1px solid rgba(255,255,255,.12); text-align: center; padding: 12px 0; color: #94a3b8; font-size: 13px }

/* ── REVEAL ANIMATION ───────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(18px); animation: fadeUp .6s ease forwards }
.delay-1 { animation-delay: .12s }
.delay-2 { animation-delay: .24s }
.delay-3 { animation-delay: .36s }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0) } }

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1300px) {
  #footer .container { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; padding: 34px 0 }
}
@media (max-width: 980px) {
  .svc-grid { grid-template-columns: 1fr 1fr }
  .process-steps { grid-template-columns: 1fr 1fr }
  
  #footer .container { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; padding: 34px 0 }
}
@media (max-width: 700px) {
  .svc-grid { grid-template-columns: 1fr }
  
  .process-steps { grid-template-columns: 1fr }
  #footer .container { grid-template-columns: 1fr; gap: 16px; padding: 24px 0 }
}
@media (max-width: 680px) {
  nav ul {
    display: none; position: absolute; right: 20px; top: 92px;
    background: #fff; border: 1px solid rgba(23,44,81,.14);
    border-radius: 12px; padding: 10px;
    min-width: 0; width: min(290px,calc(100vw - 40px));
    box-shadow: 0 18px 30px rgba(9,32,58,.12);
  }
  nav ul.is-open { display: grid; gap: 10px }
  .menu-toggle { display: inline-flex }
  .submenu { position: static; display: none; min-width: 0; border: 0; box-shadow: none; padding: 8px 0 0 12px }
  .nav-item--has-submenu.is-open .submenu { display: block }
}