/* Faith Thru Physics shared topbar — ftp-top standard (TOPBARindex v1.0) */
/* Rewritten 2026-07-03 to match the Universal Page Shell Layer 1 design. */

:root {
  --ftp-bg: #050505;
  --ftp-surface: #0a0a0a;
  --ftp-surface2: #111;
  --ftp-line: #222;
  --ftp-line-2: #2a2a2a;
  --ftp-line-hi: #3a3a3a;
  --ftp-gold: #d4af37;
  --ftp-gold-dim: rgba(212, 175, 55, 0.08);
  --ftp-gold-med: rgba(212, 175, 55, 0.15);
  --ftp-gold-glow: rgba(212, 175, 55, 0.3);
  --ftp-text: #e5e3df;
  --ftp-text-dim: #9a9a9a;
  --ftp-text-muted: #5a5a5a;
  --ftp-teal: #3bb39a;
  --ftp-blue: #5b9bd5;
  --ftp-purple: #a78bfa;
  --ftp-green: #7fc77f;
  --ftp-red: #c94040;
  --ftp-orange: #e8a040;
  --ftp-serif: 'Crimson Text', Georgia, serif;
  --ftp-mono: 'JetBrains Mono', ui-monospace, monospace;
  --ftp-display: 'Oswald', 'Inter', sans-serif;
  --ftp-sans: 'Inter', system-ui, sans-serif;
  --ftp-header-h: 56px;
}

body.ftp-topbar-enabled {
  --ftp-header-h: 56px;
  padding-top: var(--ftp-header-h) !important;
}

body.ftp-topbar-enabled .tp-ribbon,
body.ftp-topbar-enabled .site-ribbon,
body.ftp-topbar-enabled .page-ribbon {
  top: var(--ftp-header-h) !important;
}

.ftp-topbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 2147483000;
  height: var(--ftp-header-h);
  background: rgba(5, 5, 5, 0.93);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--ftp-line);
  font-family: var(--ftp-sans);
  color: var(--ftp-text);
  transition: border-color 0.3s;
  overflow: hidden;
}

/* Gold wave — flutters across the bar on hover, then dissipates */
.ftp-topbar::after {
  content: '';
  position: absolute; top: 0; bottom: 0;
  left: -30%; width: 30%;
  background: linear-gradient(100deg, transparent,
    rgba(212,175,55,.14) 45%, rgba(212,175,55,.26) 50%,
    rgba(212,175,55,.14) 55%, transparent);
  opacity: 0;
  pointer-events: none;
}
.ftp-topbar:hover::after { animation: ftp-gold-wave 1.1s ease-out forwards; }
@keyframes ftp-gold-wave {
  0%   { left: -30%; opacity: 0; }
  15%  { opacity: 1; }
  70%  { opacity: .5; }
  100% { left: 100%; opacity: 0; }
}

.ftp-topbar:hover { border-bottom-color: var(--ftp-line-2); }

.ftp-topbar .ftp-main-row {
  max-width: none;
  margin: 0;
  display: flex;
  align-items: center;
  height: var(--ftp-header-h);
  padding: 0 1.4rem;
  gap: 0.6rem;
}

/* Brand */
.ftp-topbar .ftp-brand {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
  padding: 0.2rem 0.4rem 0.2rem 0;
  border-radius: 4px;
  text-decoration: none;
  color: inherit;
}
.ftp-topbar .ftp-brand-mark {
  font-family: var(--ftp-serif);
  font-size: 1.8rem;
  color: var(--ftp-gold);
  line-height: 1;
  text-shadow: 0 0 12px var(--ftp-gold-glow);
}
.ftp-topbar .ftp-brand-name {
  font-family: var(--ftp-display);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  color: var(--ftp-text);
  text-transform: uppercase;
  white-space: nowrap;
}
.ftp-topbar .ftp-brand:hover .ftp-brand-name { color: var(--ftp-gold); }

.ftp-topbar .ftp-divider,
.ftp-topbar .ftp-vdiv {
  width: 1px;
  height: 18px;
  background: var(--ftp-line-2);
  flex-shrink: 0;
}

/* Nav links */
.ftp-topbar .ftp-nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}
.ftp-topbar .ftp-nav-link {
  font-family: var(--ftp-display);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ftp-text-dim);
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--ftp-line-2);
  background: var(--ftp-surface2);
  cursor: pointer;
  text-decoration: none;
  transition: color 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.ftp-topbar .ftp-nav-link:hover {
  color: var(--ftp-gold);
  background: var(--ftp-gold-dim);
  border-color: var(--ftp-gold-glow);
  box-shadow: 0 0 8px var(--ftp-gold-dim);
}
.ftp-topbar .ftp-nav-link.active {
  color: var(--ftp-gold);
  border-color: var(--ftp-gold-glow);
  background: var(--ftp-gold-dim);
  box-shadow: 0 0 10px var(--ftp-gold-dim);
}

/* Domain pills */
.ftp-topbar .ftp-domain-pills {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  overflow: hidden;
}
.ftp-topbar .ftp-domain-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--ftp-mono);
  font-size: 0.62rem;
  color: var(--ftp-text-dim);
  background: var(--ftp-surface2);
  border: 1px solid var(--ftp-line-2);
  border-radius: 999px;
  padding: 0.28rem 0.65rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}
.ftp-topbar .ftp-domain-pill:hover { border-color: var(--ftp-line-hi); color: var(--ftp-text); }
.ftp-topbar .ftp-domain-pill.active {
  color: var(--ftp-gold);
  border-color: var(--ftp-gold-glow);
  background: var(--ftp-gold-dim);
}
.ftp-topbar .ftp-domain-pill .ddot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--ftp-text-muted);
}
.ftp-topbar .ftp-domain-pill.active .ddot { background: var(--ftp-gold); }

/* Chi badge */
.ftp-topbar .ftp-chi-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--ftp-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--ftp-gold);
  background: var(--ftp-gold-dim);
  border: 1px solid var(--ftp-gold-glow);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}
.ftp-topbar .ftp-chi-badge:hover { background: var(--ftp-gold-med); }

.ftp-topbar .ftp-spacer { flex: 1; }

/* Reading levels */
.ftp-topbar .ftp-levels {
  display: flex;
  align-items: center;
  background: var(--ftp-surface2);
  border: 1px solid var(--ftp-line-2);
  border-radius: 6px;
  padding: 2px;
  gap: 2px;
  flex-shrink: 0;
}

.ftp-topbar .ftp-levels button {
  font-family: var(--ftp-display);
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ftp-text-muted);
  background: none;
  border: none;
  border-radius: 5px;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.ftp-topbar .ftp-levels button:hover { color: var(--ftp-text); }
.ftp-topbar .ftp-levels button.active {
  color: #050505;
  background: var(--ftp-gold);
  font-weight: 600;
  box-shadow: 0 0 10px var(--ftp-gold-glow);
}

/* Action buttons (search, proof grid) */
.ftp-topbar .ftp-action {
  font-family: var(--ftp-mono);
  font-size: 0.64rem;
  color: var(--ftp-text-dim);
  background: var(--ftp-surface2);
  border: 1px solid var(--ftp-line-2);
  border-radius: 6px;
  padding: 0.38rem 0.7rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}
.ftp-topbar .ftp-action:hover { color: var(--ftp-gold); border-color: var(--ftp-gold-glow); }

/* Mobile menu toggle */
.ftp-topbar .ftp-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 3px;
  background: none;
  border: 1px solid var(--ftp-line-2);
  border-radius: 6px;
  padding: 0.4rem 0.45rem;
  cursor: pointer;
}
.ftp-topbar .ftp-menu-bar {
  width: 14px; height: 1.5px;
  background: var(--ftp-text-dim);
  border-radius: 1px;
}

.ftp-topbar .ftp-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

/* Drop panels (series / search / proof) */
.ftp-panel-root .ftp-drop-panel {
  position: fixed;
  top: var(--ftp-header-h);
  left: 0; right: 0;
  z-index: 2147482999;
  display: none;
  background: rgba(5, 5, 5, 0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--ftp-line-2);
  padding: 1rem;
}
.ftp-panel-root .ftp-drop-panel.open { display: block; }

.ftp-panel-root .ftp-drop-panel h2 {
  max-width: 1180px;
  margin: 0 auto 0.6rem;
  font-family: var(--ftp-display);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ftp-gold);
}
.ftp-panel-root .ftp-panel-list {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.4rem;
}
.ftp-panel-root .ftp-panel-list a {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.55rem 0.7rem;
  background: var(--ftp-surface2);
  border: 1px solid var(--ftp-line-2);
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.2s;
}
.ftp-panel-root .ftp-panel-list a:hover { border-color: var(--ftp-gold-glow); background: var(--ftp-gold-dim); }
.ftp-panel-root .ftp-panel-list a span {
  font-family: var(--ftp-sans);
  font-size: 0.72rem;
  color: var(--ftp-text);
}
.ftp-panel-root .ftp-panel-list a small {
  font-family: var(--ftp-mono);
  font-size: 0.55rem;
  color: var(--ftp-text-muted);
}

/* Proof panel cards */
.ftp-panel-root .ftp-proof-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.4rem;
}
.ftp-panel-root .ftp-proof-card {
  padding: 0.6rem 0.7rem;
  background: var(--ftp-surface2);
  border: 1px solid var(--ftp-line-2);
  border-radius: 6px;
}
.ftp-panel-root .ftp-proof-card b {
  display: block;
  font-family: var(--ftp-mono);
  font-size: 1.1rem;
  color: var(--ftp-gold);
}
.ftp-panel-root .ftp-proof-card span {
  font-family: var(--ftp-sans);
  font-size: 0.6rem;
  color: var(--ftp-text-muted);
}

/* Legacy bars hidden by JS keep display:none — belt and suspenders */
[data-ftp-legacy-removed="true"] { display: none !important; }

/* Responsive */
@media (max-width: 900px) {
  .ftp-topbar .ftp-domain-pills { display: none; }
  .ftp-topbar .ftp-levels { display: none; }
  .ftp-topbar .ftp-menu-toggle { display: flex; }
}
@media (max-width: 640px) {
  .ftp-topbar .ftp-nav { display: none; }
  .ftp-topbar .ftp-brand-name { display: none; }
}