/* ═══════════════════════════════════════════════════════
   OSINTIVE — shared topbar + footer styles
   Used by: landing.html, demo_dorks.html (and any future page)
   Variables (--text-primary etc.) must be declared by the host page.
   ═══════════════════════════════════════════════════════ */

/* ── Topbar ─────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(7, 8, 18, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
}

.brand-lockup img {
  width: 180px;
  height: auto;
}

/* Desktop: panel is transparent — children act as direct flex items */
.mobile-nav-panel {
  display: contents;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.nav-links a {
  text-decoration: none;
  color: inherit;
  white-space: nowrap;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a.nav-active { color: var(--accent-secondary); font-weight: 600; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ── Hamburger toggle ────────────────────────────────── */
.mobile-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.mobile-nav-toggle:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.14);
  transform: translateY(-1px);
}

/* brand + toggle stay above the overlay (z-index: 3 > overlay's auto) */
.brand-lockup,
.mobile-nav-toggle {
  position: relative;
  z-index: 3;
}

.mobile-nav-toggle-bars {
  position: relative;
  width: 18px;
  height: 14px;
  display: block;
}

.mobile-nav-toggle-bars::before,
.mobile-nav-toggle-bars::after,
.mobile-nav-toggle-bars span {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.mobile-nav-toggle-bars::before { top: 0; }
.mobile-nav-toggle-bars span    { top: 6px; }
.mobile-nav-toggle-bars::after  { bottom: 0; }

.topbar.is-mobile-open .mobile-nav-toggle-bars::before { transform: translateY(6px) rotate(45deg); }
.topbar.is-mobile-open .mobile-nav-toggle-bars span    { opacity: 0; }
.topbar.is-mobile-open .mobile-nav-toggle-bars::after  { transform: translateY(-6px) rotate(-45deg); }

/* ── Footer ─────────────────────────────────────────── */
.footer {
  padding: 4rem 0 2rem;
  background: linear-gradient(180deg, rgba(8,10,22,0), rgba(10,12,28,0.98) 20%, rgba(9,10,28,1));
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.9fr 0.9fr 0.9fr;
  gap: 2rem;
  align-items: start;
}

.footer-brand img {
  width: 190px;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 1.2rem;
}

.footer-company {
  margin: 0 0 1.35rem;
  display: grid;
  gap: 0.45rem;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

.footer-company strong { color: var(--text-primary); font-weight: 700; }
.footer-company a      { color: var(--text-primary); text-decoration: none; }
.footer-company a:hover { color: #ffffff; }

.footer-heading {
  margin: 0 0 1rem;
  font-size: 1.35rem;
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  color: var(--text-primary);
}

.footer-list {
  display: grid;
  gap: 0.8rem;
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.5;
}

.footer-list a { text-decoration: none; color: inherit; transition: color 0.15s; }
.footer-list a:hover { color: var(--text-primary); }
.footer-list .accent { color: #a891ff; }

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.86rem;
}

.footer-bottom-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom-links a { text-decoration: none; color: inherit; transition: color 0.15s; }
.footer-bottom-links a:hover { color: var(--text-secondary); }
.footer-brand .nav-actions { margin-top: 0.5rem; }

/* ── Mobile overlay — ≤ 767px ───────────────────────── */
@media (max-width: 767px) {
  body.is-mobile-nav-open {
    overflow: hidden;
    overscroll-behavior: none;
  }

  /* Fixed topbar at mobile — this is critical:
     position:fixed (vs sticky) prevents backdrop-filter from creating
     a containing block for fixed-positioned children on Safari/WebKit */
  .topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 90;
  }

  .topbar.is-mobile-open {
    bottom: 0;
    background:
      linear-gradient(180deg, rgba(7,8,18,0.94) 0%, rgba(9,11,22,0.97) 100%),
      radial-gradient(circle at top left, rgba(99,102,241,0.16), transparent 28%),
      radial-gradient(circle at 82% 14%, rgba(54,195,255,0.08), transparent 24%);
    backdrop-filter: blur(26px) saturate(132%);
    -webkit-backdrop-filter: blur(26px) saturate(132%);
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .topbar-inner {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.7rem;
    padding: 0.8rem 0;
  }

  .brand-lockup { justify-content: flex-start; }
  .brand-lockup img { width: min(100%, 152px); }
  .mobile-nav-toggle { display: inline-flex; }

  .topbar.is-mobile-open .topbar-inner {
    align-content: start;
    min-height: 100dvh;
    padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 1.5rem);
  }

  .mobile-nav-panel {
    display: none !important;
    grid-column: 1 / -1;
    width: 100%;
    padding-top: 1rem;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    gap: 0.85rem;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0s linear 0.2s;
  }

  .topbar.is-mobile-open .mobile-nav-panel {
    display: flex !important;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
  }

  .topbar .mobile-nav-panel .nav-links {
    display: grid !important;
    grid-template-columns: 1fr;
    gap: 0.55rem;
    width: min(100%, 430px);
    margin: 0 auto;
    flex: 0 0 auto;
    overflow: visible;
  }

  .topbar .mobile-nav-panel .nav-actions {
    display: grid !important;
    grid-template-columns: 1fr;
    gap: 0.55rem;
    width: min(100%, 430px);
    margin: 0 auto;
    flex: 0 0 auto;
  }

  .nav-links a {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 46px;
    padding: 0.7rem 0.9rem;
    border-radius: 14px;
    font-size: 1rem;
    white-space: normal;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    opacity: 0;
    transform: translate3d(0, 12px, 0);
    transition:
      opacity 0.22s ease,
      transform 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      background 0.2s ease,
      border-color 0.2s ease;
  }

  .topbar.is-mobile-open .nav-links a,
  .topbar.is-mobile-open .nav-actions .btn {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }

  .topbar.is-mobile-open .nav-links a:nth-child(1) { transition-delay: 0.04s; }
  .topbar.is-mobile-open .nav-links a:nth-child(2) { transition-delay: 0.07s; }
  .topbar.is-mobile-open .nav-links a:nth-child(3) { transition-delay: 0.10s; }
  .topbar.is-mobile-open .nav-links a:nth-child(4) { transition-delay: 0.13s; }
  .topbar.is-mobile-open .nav-links a:nth-child(5) { transition-delay: 0.16s; }
  .topbar.is-mobile-open .nav-links a:nth-child(6) { transition-delay: 0.19s; }
  .topbar.is-mobile-open .nav-links a:nth-child(7) { transition-delay: 0.22s; }
  .topbar.is-mobile-open .nav-links a:nth-child(8) { transition-delay: 0.25s; }

  .topbar .nav-actions .btn {
    width: 100%;
    min-width: 0;
    opacity: 0;
    transform: translate3d(0, 12px, 0);
    transition: opacity 0.22s ease, transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .topbar.is-mobile-open .nav-actions .btn:nth-child(1) { transition-delay: 0.26s; }
  .topbar.is-mobile-open .nav-actions .btn:nth-child(2) { transition-delay: 0.30s; }

  /* Footer responsive */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer .nav-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.55rem;
  }
}

@media (max-width: 640px) {
  .footer-bottom { flex-direction: column; gap: 0.5rem; }
}