/* ============================================================
   TCF Galaxy — Styles
   Extends the Jomhoor design system (jomhoor.org/styles.css)
   ============================================================ */

/* ── Fonts ────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Root & Design Tokens ─────────────────────────────────── */
:root {
  --bg:              #090909;
  --surface:         rgba(15, 15, 15, 0.88);
  --surface-raised:  rgba(28, 28, 28, 0.92);
  --border:          rgba(255, 255, 255, 0.06);
  --border-mid:      rgba(255, 255, 255, 0.10);

  --text-primary:    rgba(255, 255, 255, 0.92);
  --text-secondary:  rgba(255, 255, 255, 0.58);
  --text-muted:      rgba(255, 255, 255, 0.36);

  --blue:    #5B9DF5;
  --cyan:    #38BDF8;
  --purple:  #AC95DC;
  --green:   #0EBB90;
  --amber:   #F9C452;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 40px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --duration: 0.3s;
  --duration-slow: 0.65s;

  --blur-glass: 20px;

  --panel-width: 400px;
}

/* ── Base ─────────────────────────────────────────────────── */
html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

/* ── Canvas Star Field ────────────────────────────────────── */
#starfield {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ── SVG Graph ────────────────────────────────────────────── */
#graph {
  position: fixed;
  inset: 0;
  z-index: 1;
  cursor: grab;
}
#graph:active { cursor: grabbing; }

/* ── Node Group ───────────────────────────────────────────── */
.node-group { cursor: pointer; }
.node-circle { transition: filter var(--duration) var(--ease); }

/* ── Halo Pulse ───────────────────────────────────────────── */
@keyframes halo-pulse {
  0%   { transform: scale(1);   opacity: 0.28; }
  65%  { transform: scale(2.2); opacity: 0; }
  100% { transform: scale(2.2); opacity: 0; }
}
.node-halo {
  animation: halo-pulse 3.6s ease-out infinite;
  transform-box: fill-box;
  transform-origin: center center;
}

/* ── Node Labels: zoom-responsive ────────────────────────── */
.node-name {
  fill: rgba(255, 255, 255, 0.88);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.45s var(--ease);
}
.node-tagline {
  fill: rgba(255, 255, 255, 0.44);
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 300;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}

/* Medium zoom → names appear */
#graph.zoom-medium .node-name { opacity: 1; }
/* Close zoom → names + taglines appear */
#graph.zoom-close  .node-name    { opacity: 1; }
#graph.zoom-close  .node-tagline { opacity: 1; }

/* ── Links ────────────────────────────────────────────────── */
.link {
  transition: stroke-opacity 0.28s var(--ease);
}

/* ── Top Nav Bar (title + filters) ───────────────────────── */
#topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 24px;
  pointer-events: none;
}

#logo {
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: all;
  user-select: none;
  flex-shrink: 0;
}
#logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 14px var(--blue);
  flex-shrink: 0;
}
#logo-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.01em;
}
#logo-sub {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
}

/* ── Category Filter Pills ────────────────────────────────── */
#filters {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--surface);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 5px;
  pointer-events: all;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}
#filters::-webkit-scrollbar { display: none; }

.filter-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 30px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 12.5px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--duration) var(--ease),
              background var(--duration) var(--ease);
}
.filter-pill:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.07);
}
.filter-pill.active {
  background: rgba(255, 255, 255, 0.10);
  color: var(--text-primary);
}
.filter-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Detail Panel ─────────────────────────────────────────── */
#panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: var(--panel-width);
  max-width: 92vw;
  background: var(--surface);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  border-left: 1px solid var(--border);
  z-index: 20;
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease);
  overflow-y: auto;
  overflow-x: hidden;
}
#panel.panel--open {
  transform: translateX(0);
  box-shadow: -20px 0 80px rgba(0, 0, 0, 0.6);
}

/* Accent color bar at top of panel */
#panel-accent {
  height: 3px;
  width: 100%;
  flex-shrink: 0;
  transition: background 0.4s var(--ease);
}

#panel-inner {
  padding: 0 28px 48px;
}

/* Panel header row */
#panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding-top: 24px;
  margin-bottom: 20px;
}

#panel-close {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-mid);
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--duration) var(--ease),
              color var(--duration) var(--ease);
  margin-left: 12px;
}
#panel-close:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

#panel-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 11px;
  border-radius: 20px;
  border: 1px solid;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  width: fit-content;
}

#panel-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.15;
  margin-top: 10px;
}

#panel-fullname {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.5;
}

#panel-tagline {
  font-size: 15px;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.55;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

#panel-description {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-top: 14px;
}

/* Panel links */
#panel-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.panel-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: background var(--duration) var(--ease);
}
.panel-link:hover { background: rgba(255, 255, 255, 0.05); }

/* Related nodes */
#panel-related {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
#panel-related-label {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
#panel-related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.related-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid;
  background: transparent;
  font-size: 12.5px;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--duration) var(--ease);
}
.related-chip:hover { background: rgba(255, 255, 255, 0.05); }
.chip-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Bottom Controls ──────────────────────────────────────── */
#bottom-bar {
  position: fixed;
  bottom: 24px;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  pointer-events: none;
}

#hint {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  transition: opacity 1.2s var(--ease);
  pointer-events: none;
  text-align: center;
}

#btn-reset {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--surface);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  border: 1px solid var(--border-mid);
  color: var(--text-secondary);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--duration) var(--ease),
              color var(--duration) var(--ease),
              transform var(--duration) var(--ease);
}
#btn-reset:hover {
  background: rgba(255, 255, 255, 0.10);
  color: var(--text-primary);
  transform: rotate(-30deg);
}

/* ── Node count badge (bottom-left) ──────────────────────── */
#node-count {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 10;
  font-size: 11.5px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ── Mobile ───────────────────────────────────────────────── */
@media (max-width: 700px) {
  :root { --panel-width: 100vw; }

  #topbar { padding: 12px 16px; gap: 12px; }
  #logo-sub { display: none; }

  .filter-pill { padding: 5px 10px; font-size: 11.5px; }

  #panel {
    top: auto;
    left: 0;
    right: 0;
    width: 100%;
    height: 72vh;
    max-width: 100%;
    border-left: none;
    border-top: 1px solid var(--border);
    border-radius: 20px 20px 0 0;
    transform: translateY(100%);
  }
  #panel.panel--open { transform: translateY(0); }

  #btn-reset { bottom: 80px; }
  #node-count { display: none; }
}

/* ── Scrollbar (panel) ────────────────────────────────────── */
#panel::-webkit-scrollbar { width: 4px; }
#panel::-webkit-scrollbar-track { background: transparent; }
#panel::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.10); border-radius: 4px; }