/* ==========================================================================
   Shared site header (announcement + mega-menu nav + mobile menu).
   Single source of truth, extracted verbatim from the marketing site so the
   header is identical across index.html, service-portal.html and /resources.
   Relies on the design tokens defined in blog.css (loaded first).
   ========================================================================== */

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
  font-size: 14px; color: var(--ink-soft); padding: 6px 10px;
  font-weight: 400; white-space: nowrap;
}
.nav-link:hover { color: var(--ink); }

/* mega-menu nav */
.nav-mega { position: relative; }
.nav-mega-btn {
  display: inline-flex; align-items: center; gap: 5px;
  background: transparent; border: 0;
  padding: 6px 10px; border-radius: 8px;
  font-size: 14px; font-weight: 400; color: var(--ink-soft);
  cursor: pointer; white-space: nowrap;
  transition: color .15s ease, background .15s ease;
}
.nav-mega-btn:hover { color: var(--ink); background: var(--surface); }
.nav-mega-btn .chev { color: var(--ink-muted); transition: transform .2s ease; }
.nav-mega[data-open="true"] .nav-mega-btn { color: var(--ink); background: var(--surface); }
.nav-mega[data-open="true"] .nav-mega-btn .chev { transform: rotate(180deg); }
.nav-mega-panel {
  position: absolute; top: calc(100% + 14px); left: -20px;
  padding: 22px; gap: 28px;
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  box-shadow: 0 24px 60px -16px rgba(60,60,90,.22), 0 0 0 1px rgba(0,0,0,.02);
  opacity: 0; pointer-events: none; transform: translateY(-4px);
  transition: opacity .2s ease, transform .2s ease;
  z-index: 50;
}
.nav-mega:hover .nav-mega-panel,
.nav-mega[data-open="true"] .nav-mega-panel {
  opacity: 1; pointer-events: auto; transform: translateY(0);
}
/* Solutions panel: center on viewport (fixed so left:50% is viewport-relative) */
.nav-mega-panel.solutions {
  position: fixed; top: 108px; left: 50%; right: auto;
  transform: translateX(-50%) translateY(-4px);
}
.nav-mega:hover .nav-mega-panel.solutions,
.nav-mega[data-open="true"] .nav-mega-panel.solutions { transform: translateX(-50%) translateY(0); }
/* products mega: 2 uniform columns + book-a-demo footer — sized to match solutions */
.nav-mega-panel.products {
  position: fixed; top: 108px; left: 50%; right: auto;
  transform: translateX(-50%) translateY(-4px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: min(900px, calc(100vw - 48px));
  gap: 28px;
  padding: 22px 22px 0;
  align-items: stretch;
}
.nav-mega:hover .nav-mega-panel.products,
.nav-mega[data-open="true"] .nav-mega-panel.products { transform: translateX(-50%) translateY(0); }
.nav-mega-panel.products > div { display: flex; flex-direction: column; }
.nav-mega-panel.products > div:first-child { justify-content: flex-start; }
.nav-mega-panel.products .mega-team-card.is-here {
  background: rgba(99,102,241,0.06); border: 1px solid var(--accent-line); padding: 8px 9px;
}
.nav-mega-panel.products .mega-team-card .mega-link-ico.gradient-blue {
  background: linear-gradient(135deg, #3B82F6, #6366F1); color: #fff;
  box-shadow: 0 1px 0 rgba(255,255,255,.2) inset, 0 1px 2px rgba(60,60,90,.18);
  font-family: 'JetBrains Mono', monospace; font-weight: 600; font-size: 13px;
}
.nav-mega-panel.products .mega-team-card .mega-link-ico.gradient-violet {
  background: linear-gradient(135deg, #2563EB, #7c3aed); color: #fff;
  box-shadow: 0 1px 0 rgba(255,255,255,.2) inset, 0 1px 2px rgba(60,60,90,.18);
  font-family: 'JetBrains Mono', monospace; font-weight: 600; font-size: 13px;
}
/* solutions mega: 3 uniform columns + book-a-demo footer */
.nav-mega-panel.solutions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  width: min(900px, calc(100vw - 48px));
  gap: 18px;
  padding: 22px 22px 0;
}
.mega-team-card {
  display: flex; gap: 11px; align-items: flex-start;
  padding: 9px 10px; border-radius: 10px;
  transition: background .12s ease; margin-bottom: 2px;
  text-decoration: none;
}
.mega-team-card:hover { background: var(--surface); }
.mega-team-card .mega-link-ico {
  width: 30px; height: 30px; border-radius: 7px; flex-shrink: 0;
  display: grid; place-items: center;
}
.mega-team-body { min-width: 0; flex: 1; }
.mega-team-name {
  font-size: 13.5px; font-weight: 500; color: var(--ink);
  letter-spacing: -0.005em; line-height: 1.2;
}
.mega-team-desc {
  font-size: 11.5px; color: var(--ink-muted);
  margin-top: 2px; line-height: 1.4;
}
/* Demo CTA footer strip spanning all columns */
.mega-demo-cta {
  grid-column: 1 / -1;
  margin: 12px -22px 0;
  padding: 16px 22px;
  background: linear-gradient(180deg, #0d0d12 0%, #312e81 100%);
  color: #fff;
  display: grid; grid-template-columns: 1fr auto; gap: 18px;
  align-items: center;
  border-radius: 0 0 18px 18px;
  position: relative; overflow: hidden;
}
.mega-demo-cta::before {
  content: ""; position: absolute;
  right: 20%; top: -60px; width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,.35), rgba(99,102,241,0));
  pointer-events: none;
}
.mega-demo-cta-left { position: relative; display: flex; align-items: center; gap: 14px; }
.mega-demo-cta-dot {
  width: 8px; height: 8px; border-radius: 999px;
  background: #34d399;
  box-shadow: 0 0 0 4px rgba(52,211,153,.22);
  flex-shrink: 0;
}
.mega-demo-cta-title {
  font-family: 'Outfit', sans-serif; font-style: italic; font-weight: 500; font-size: 21px;
  color: #fff; letter-spacing: -0.005em; line-height: 1.1;
}
.mega-demo-cta-sub {
  font-family: 'JetBrains Mono', monospace; font-size: 10.5px;
  color: rgba(255,255,255,.7); letter-spacing: 0.06em;
  margin-top: 4px; text-transform: uppercase;
}
.mega-demo-cta-btn {
  background: #fff; color: var(--ink);
  padding: 10px 16px; border-radius: 999px;
  font-size: 13px; font-weight: 500; letter-spacing: -0.005em;
  display: inline-flex; align-items: center; gap: 6px;
  white-space: nowrap; position: relative;
  transition: transform .12s ease;
}
.mega-demo-cta-btn:hover { transform: translateY(-1px); }
.mega-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-muted); font-weight: 500;
  margin: 0 0 14px;
}
.mega-pill {
  font-family: 'JetBrains Mono', monospace; font-size: 9.5px;
  letter-spacing: 0.06em; text-transform: uppercase; font-weight: 500;
  padding: 2px 7px; border-radius: 999px; flex-shrink: 0;
}
.mega-pill.live { background: #ecfdf3; color: #0d8a55; }
.mega-pill.beta { background: var(--accent-soft); color: var(--accent-ink); }
.mega-pill.here { background: transparent; color: var(--accent-ink); padding: 1px 0; letter-spacing: 0.08em; font-size: 9px; font-weight: 500; }
.mega-pill.here::before { content: "●"; margin-right: 4px; color: var(--accent); font-size: 8px; vertical-align: 1px; }

/* Logo */
.logo { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); }
.logo.inverted { color: #fff; }
.logo-mark { width: 36px; height: 36px; display: block; object-fit: contain; }
.logo-text { font-weight: 600; font-size: 22px; letter-spacing: -0.02em; }

/* Announcement bar */
.announcement {
  display: block; background: var(--dark); color: #fff;
  text-align: center; padding: 9px 16px;
  font-size: 13px; font-family: 'JetBrains Mono', monospace; letter-spacing: 0.04em;
}

/* mobile menu */
.nav-burger { display: none; }
.mobile-menu { display: none; }

@media (max-width: 1024px) {
  .announcement { font-size: 12px; padding: 8px 14px; }
}
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-inner { height: 56px; }
  .nav-burger {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line);
    background: #fff; color: var(--ink); flex-shrink: 0; cursor: pointer;
  }
  .mobile-menu {
    display: block; position: absolute; left: 0; right: 0; top: 100%;
    background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px -20px rgba(40,40,70,.25); padding: 6px 20px 22px; z-index: 60;
    opacity: 0; transform: translateY(-8px); pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
  }
  .mobile-menu[data-open="true"] { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .mm-label {
    font-family: 'JetBrains Mono', monospace; font-size: 10.5px; letter-spacing: .1em;
    text-transform: uppercase; color: var(--ink-muted); margin: 16px 0 4px;
  }
  .mm-link {
    display: block; padding: 12px 2px; font-size: 16px; color: var(--ink);
    border-bottom: 1px solid var(--line); text-decoration: none;
  }
  .mobile-menu .btn-primary { display: flex; width: 100%; justify-content: center; margin-top: 16px; }
}
@media (max-width: 720px) {
  .announcement { font-size: 11.5px; letter-spacing: 0.02em; padding: 8px 12px; line-height: 1.4; }
  .nav-inner > div:last-child { gap: 6px; }
  .nav-inner .btn-primary { padding: 8px 12px !important; font-size: 13px !important; }
  .nav-link { font-size: 13px; padding: 6px 8px; }
}
@media (max-width: 480px) {
  .nav-inner .nav-link[href*="enteam.ai"] { display: none; }
  .nav-inner > div:last-child > .btn-primary { display: none !important; }
  .announcement { font-size: 11px; }
}