/* ══════════════════════════════════════════
   SEI HEADER GLOBAL — single source of truth
   Usado por header.js en todas las páginas
══════════════════════════════════════════ */
.sei-nav {
  position:fixed; top:0; left:0; right:0; z-index:100;
  background: rgba(13,31,51,.97);
  backdrop-filter: blur(10px); -webkit-backdrop-filter:blur(10px);
  box-shadow: 0 1px 0 rgba(255,255,255,.07);
  transition: box-shadow .3s var(--ease);
}
.sei-nav.stuck {
  box-shadow: 0 2px 12px rgba(0,0,0,.3);
}
.sei-nav__in {
  display:grid; grid-template-columns:auto 1fr auto;
  align-items:center; gap:20px;
  height:80px; max-width:none; margin:0; padding:0 40px;
}
.sei-nav__logo { display:flex; align-items:center; flex-shrink:0; text-decoration:none; }
.sei-nav__logo img { height:40px; display:block; }
.sei-nav__links { display:flex; align-items:center; justify-content:center; gap:8px; list-style:none; }
.sei-nav__links a {
  font-size:12px; font-weight:500; letter-spacing:.02em; color:rgba(255,255,255,.65);
  position:relative; padding-bottom:2px; transition:color .18s; white-space:nowrap;
}
.sei-nav__links a::after {
  content:''; position:absolute; bottom:-2px; left:0; right:0; height:1px;
  background:var(--ochre); transform:scaleX(0); transform-origin:left; transition:transform .22s var(--ease);
}
.sei-nav__links a:hover { color:var(--white); }
.sei-nav__links a:hover::after { transform:scaleX(1); }
.sei-nav__right { display:flex; align-items:center; gap:12px; flex-shrink:0; }
.sei-nav__cta {
  font-size:11.5px; font-weight:600; letter-spacing:.06em; color:var(--white);
  background:var(--sage); padding:9px 16px; border-radius:var(--r); flex-shrink:0; transition:background .2s; white-space:nowrap;
}
.sei-nav__cta:hover { background:var(--sage-lt); }
.sei-nav__burger { display:none; flex-direction:column; gap:5px; padding:6px; }
/* Selector de idioma */
.sei-lang { position:relative; }
.sei-lang__btn { display:flex; align-items:center; gap:6px; background:none; border:1px solid rgba(255,255,255,.18); border-radius:6px; padding:5px 10px; cursor:pointer; font-size:12px; color:rgba(255,255,255,.7); font-family:inherit; transition:border-color .18s,color .18s; white-space:nowrap; }
.sei-lang__btn:hover { border-color:rgba(255,255,255,.45); color:#fff; }
.sei-lang__btn svg { transition:transform .2s; }
.sei-lang.open .sei-lang__btn svg { transform:rotate(180deg); }
.sei-lang__drop { display:none; position:absolute; right:0; top:calc(100% + 8px); background:#0D1F33; border:1px solid rgba(255,255,255,.1); border-radius:8px; overflow:hidden; min-width:160px; z-index:200; box-shadow:0 8px 24px rgba(0,0,0,.4); }
.sei-lang.open .sei-lang__drop { display:block; }
.sei-lang__opt { display:flex; align-items:center; gap:10px; padding:10px 14px; cursor:pointer; font-size:12px; color:rgba(255,255,255,.6); transition:background .15s,color .15s; border:none; background:none; width:100%; text-align:left; font-family:inherit; }
.sei-lang__opt:hover { background:rgba(255,255,255,.07); color:#fff; }
.sei-lang__opt.active { color:#fff; font-weight:600; }
/* Google Translate oculto */
#google_translate_element { display:none; }
.goog-te-banner-frame { display:none !important; }
body { top:0 !important; }
.sei-nav__burger span { display:block; width:22px; height:2px; background:var(--white); border-radius:1px; transition:transform .2s,opacity .2s; }
.sei-nav__mob {
  display:none; position:fixed; top:80px; left:0; right:0; z-index:99;
  background:var(--navy-d); padding:20px var(--pad) 28px;
  border-top:1px solid rgba(255,255,255,.07);
  opacity:0; transform:translateY(-8px); pointer-events:none;
  transition:opacity .2s, transform .2s;
}
.sei-nav__mob.open { display:block; opacity:1; transform:translateY(0); pointer-events:auto; }
.sei-nav__mob li { border-bottom:1px solid rgba(255,255,255,.07); }
.sei-nav__mob a { display:block; font-size:15px; color:rgba(255,255,255,.78); padding:13px 0; font-weight:500; transition:color .15s; }
.sei-nav__mob a:hover { color:var(--white); }
.sei-nav__mob-cta { display:block; margin-top:18px; text-align:center; }

/* ── Dropdown nav desktop ── */
.sei-nav__has-drop { position:relative; }
.sei-nav__has-drop > a { display:inline-flex; align-items:center; gap:4px; }
.sei-nav__chevron { flex-shrink:0; transition:transform .20s; }
.sei-nav__drop {
  position:absolute; top:calc(100% + 8px); left:50%;
  transform:translateX(-50%) translateY(-6px);
  min-width:270px; list-style:none;
  background:rgba(10,24,42,.98);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-md);
  padding:10px 0;
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .18s, transform .18s, visibility .18s;
  z-index:200;
}
/* Puente invisible que elimina el hueco de hover entre trigger y dropdown */
.sei-nav__drop::before {
  content:''; position:absolute;
  top:-8px; left:0; right:0; height:8px;
}
.sei-nav__has-drop:hover .sei-nav__drop,
.sei-nav__has-drop:focus-within .sei-nav__drop,
.sei-nav__has-drop.open .sei-nav__drop {
  opacity:1; visibility:visible; pointer-events:auto;
  transform:translateX(-50%) translateY(0);
}
.sei-nav__has-drop:hover .sei-nav__chevron,
.sei-nav__has-drop:focus-within .sei-nav__chevron,
.sei-nav__has-drop.open .sei-nav__chevron { transform:rotate(180deg); }
/* Trigger: estado activo mientras el dropdown está visible */
.sei-nav__has-drop:hover > a,
.sei-nav__has-drop:focus-within > a,
.sei-nav__has-drop.open > a { color:var(--white); }
.sei-nav__has-drop:hover > a::after,
.sei-nav__has-drop:focus-within > a::after,
.sei-nav__has-drop.open > a::after { transform:scaleX(1); }
.sei-nav__drop li { border:none; }
.sei-nav__drop a {
  display:block; padding:14px 24px; white-space:nowrap;
  font-size:12px; font-weight:500; color:rgba(255,255,255,.62);
  transition:color .15s, background .15s;
  letter-spacing:.02em;
}
.sei-nav__drop a::after { display:none !important; }
.sei-nav__drop a:hover { color:var(--white); background:rgba(42,92,143,.35); }

/* ── Acordeón móvil Sistema SEI ── */
.sei-nav__mob-toggle {
  display:flex; align-items:center; justify-content:space-between; width:100%;
  background:none; border:none; cursor:pointer; padding:13px 0;
  font-size:15px; color:rgba(255,255,255,.78); font-weight:500;
  font-family:inherit; text-align:left; transition:color .15s;
}
.sei-nav__mob-toggle:hover { color:var(--white); }
.sei-nav__mob-tchevron { flex-shrink:0; transition:transform .20s; }
.sei-nav__mob-toggle[aria-expanded="true"] .sei-nav__mob-tchevron { transform:rotate(180deg); }
.sei-nav__mob-sub {
  display:none; padding:2px 0 10px 14px;
  border-left:1px solid rgba(255,255,255,.12); margin-left:2px;
}
.sei-nav__mob-sub.open { display:block; }
.sei-nav__mob-sub li { border-bottom:1px solid rgba(255,255,255,.04); }
.sei-nav__mob-sub a { font-size:13px; padding:9px 0; color:rgba(255,255,255,.62); }
.sei-nav__mob-sub a:hover { color:var(--white); }
.sei-nav__mob li.sei-nav__mob-drop-li { border-bottom:1px solid rgba(255,255,255,.07); }

/* ══════════════════════════════════════════
   RESPONSIVE — NAV GRANDE (≥ 1600px)
══════════════════════════════════════════ */
@media (min-width:1600px) {
  .sei-nav__in { height:90px; gap:28px; }
  .sei-nav__logo img { height:50px; }
  .sei-nav__links { gap:16px; }
  .sei-nav__links a { font-size:13.5px; }
  .sei-nav__cta { font-size:13px; padding:14px 24px; }
  .sei-lang__btn { font-size:13px; padding:6px 12px; }
  .sei-nav__mob { top:90px; }
}

@media (min-width:2100px) {
  .sei-nav__in { height:100px; gap:36px; }
  .sei-nav__logo img { height:58px; }
  .sei-nav__links { gap:20px; }
  .sei-nav__links a { font-size:14.5px; }
  .sei-nav__cta { font-size:14px; padding:13px 26px; }
  .sei-lang__btn { font-size:14px; padding:7px 14px; }
  .sei-nav__mob { top:100px; }
}

/* ══════════════════════════════════════════
   RESPONSIVE — NAV HAMBURGER (≤ 1300px)
══════════════════════════════════════════ */
@media (max-width:1300px) {
  .sei-nav__links,.sei-nav__cta { display:none; }
  .sei-nav__burger { display:flex; }
}

/* ══════════════════════════════════════════
   MEGA MENÚ — SOLUCIONES
══════════════════════════════════════════ */
.sei-mega {
  position: fixed;
  top: 80px; left: 0; right: 0;
  z-index: 98;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity .2s, transform .2s, visibility .2s;
  background: rgba(10,22,40,.98);
  border-top: 1px solid rgba(255,255,255,.07);
  border-bottom: 1px solid rgba(255,255,255,.06);
  box-shadow: 0 16px 48px rgba(0,0,0,.45);
}
.sei-mega.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.sei-mega__inner {
  display: grid;
  grid-template-columns: 300px 1px 1fr;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
  min-height: 340px;
}

/* Columna izquierda */
.sei-mega__left {
  padding: 36px 32px 36px 0;
}
.sei-mega__ey {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--ochre);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.sei-mega__ey--left {
  margin-bottom: 24px;
}
.sei-mega__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sei-mega__sol-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  padding: 11px 14px;
  border-radius: 3px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,.62);
  letter-spacing: .01em;
  transition: background .15s, color .15s;
  text-align: left;
}
.sei-mega__sol-btn:hover {
  background: rgba(42,92,143,.25);
  color: var(--white);
}
.sei-mega__sol-btn.active {
  background: rgba(176,138,46,.10);
  color: var(--white);
  border-left: 2px solid var(--ochre);
  padding-left: 12px;
}
.sei-mega__sol-arrow {
  flex-shrink: 0;
  opacity: 0;
  transition: opacity .15s;
}
.sei-mega__sol-btn.active .sei-mega__sol-arrow,
.sei-mega__sol-btn:hover .sei-mega__sol-arrow {
  opacity: 1;
}

/* Divisor vertical */
.sei-mega__divider {
  background: rgba(255,255,255,.08);
  margin: 28px 0;
}

/* Columna derecha — paneles */
.sei-mega__right {
  position: relative;
  padding: 36px 0 36px 40px;
}
.sei-mega__panel {
  display: none;
  flex-direction: column;
  gap: 0;
  opacity: 0;
  transition: opacity .2s;
}
.sei-mega__panel.active {
  display: flex;
  opacity: 1;
}
.sei-mega__rtitle {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 400;
  color: var(--white);
  line-height: 1.25;
  margin-bottom: 10px;
  letter-spacing: -.015em;
}
.sei-mega__desc {
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(255,255,255,.52);
  max-width: 420px;
  margin-bottom: 20px;
}
.sei-mega__apps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 24px;
}
.sei-mega__app-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
  font-size: 12.5px;
  color: rgba(255,255,255,.70);
  transition: color .15s;
  cursor: default;
}
.sei-mega__app-item:first-child {
  border-top: 1px solid rgba(255,255,255,.05);
}
.sei-mega__app-item:hover {
  color: var(--white);
}
.sei-mega__app-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--ochre);
  flex-shrink: 0;
}
.sei-mega__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--ochre-lt);
  text-transform: uppercase;
  transition: color .15s;
  text-decoration: none;
  margin-top: 4px;
}
.sei-mega__cta:hover { color: var(--white); }
.sei-mega__cta--disabled {
  color: rgba(255,255,255,.25);
  cursor: default;
  pointer-events: none;
}

@media (min-width:1600px) {
  .sei-mega { top: 90px; }
  .sei-mega__inner { max-width: 1300px; grid-template-columns: 340px 1px 1fr; }
  .sei-mega__rtitle { font-size: 22px; }
}
@media (min-width:2100px) {
  .sei-mega { top: 100px; }
  .sei-mega__inner { max-width: 1560px; }
}
/* ── Variante grid (foto arriba + label) ── */
.sei-mega__apps--grid {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
  list-style: none;
}
.sei-mega__apps--cols3 { grid-template-columns: repeat(3, 1fr); }
.sei-mega__app-item--grid { display: contents; }
.sei-mega__grid-card {
  display: flex;
  flex-direction: column;
  gap: 7px;
  text-decoration: none;
  cursor: pointer;
  border-radius: 3px;
  overflow: hidden;
  transition: opacity .15s;
}
.sei-mega__grid-card:hover { opacity: .85; }
.sei-mega__grid-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 2px;
  display: block;
  flex-shrink: 0;
}
.sei-mega__grid-label {
  font-size: 11px;
  font-weight: 500;
  color: rgba(255,255,255,.65);
  line-height: 1.3;
  transition: color .15s;
  letter-spacing: .01em;
}
.sei-mega__grid-card:hover .sei-mega__grid-label { color: var(--white); }

/* ── Variante con miniaturas ── */
.sei-mega__apps--thumb {
  gap: 0;
  margin-bottom: 20px;
}
.sei-mega__app-item--thumb {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 7px 10px 7px 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
  cursor: pointer;
  border-radius: 3px;
  transition: background .15s;
}
.sei-mega__app-item--thumb:first-child { border-top: 1px solid rgba(255,255,255,.05); }
.sei-mega__app-item--thumb:hover { background: rgba(255,255,255,.05); }
.sei-mega__app-item--thumb .sei-mega__app-dot { display: none; }
.sei-mega__thumb {
  width: 52px;
  height: 36px;
  object-fit: cover;
  border-radius: 2px;
  flex-shrink: 0;
  display: block;
  opacity: .85;
  transition: opacity .15s;
}
.sei-mega__app-item--thumb:hover .sei-mega__thumb { opacity: 1; }
.sei-mega__app-label {
  flex: 1;
  font-size: 12.5px;
  color: rgba(255,255,255,.70);
  transition: color .15s;
  line-height: 1.3;
}
.sei-mega__app-item--thumb:hover .sei-mega__app-label { color: var(--white); }
.sei-mega__app-arrow {
  flex-shrink: 0;
  color: rgba(255,255,255,.25);
  transition: color .15s, transform .15s;
}
.sei-mega__app-item--thumb:hover .sei-mega__app-arrow {
  color: var(--ochre-lt);
  transform: translateX(2px);
}

@media (max-width:1300px) {
  .sei-mega { display: none; }
}