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

:root {
  --bg: #0a0a0a;
  --bg-card: #121212;
  --bg-elevated: #1a1a1a;
  --text: #e0e0e0;
  --text-dim: #666;
  --accent: #64ffda;
  --accent-glow: rgba(100,255,218,0.15);
  --danger: #ff5252;
  --folder-colors: {
    meta: '#ffd54f',
    bio: '#7986cb',
    music: '#4db6ac',
    whitepaper: '#ba68c8',
    saas: '#ff8a65',
    archive: '#90a4ae',
    staging: '#a1887f',
    intake: '#4fc3f7',
    noise: '#78909c'
  }
}

html, body { height: 100%; overflow: hidden; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* ─── Login Screen ──────────────────────────────── */
.login-screen {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, #0d1117 0%, #010101 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: opacity 0.6s, visibility 0.6s;
}
.login-screen.fade-out { opacity: 0; visibility: hidden; }

.login-center {
  text-align: center;
  z-index: 2;
  background: var(--bg-card);
  border: 1px solid #222;
  border-radius: 16px;
  padding: 3rem 2.5rem;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 0 60px var(--accent-glow);
}

.login-glyph {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 0 12px var(--accent));
}

.login-brand h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
  color: var(--accent);
}
.login-brand p {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 2rem;
  line-height: 1.4;
}

.google-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 2rem;
  background: #fff;
  color: #222;
  border: none;
  border-radius: 40px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.google-btn:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.5); transform: translateY(-1px); }
.google-btn:active { transform: translateY(0); }
.google-btn.loading { opacity: 0.7; pointer-events: none; }

.login-scope {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 1rem;
  line-height: 1.4;
}

.login-error {
  margin-top: 0.75rem;
  padding: 0.5rem;
  background: rgba(255,82,82,0.1);
  border: 1px solid rgba(255,82,82,0.3);
  border-radius: 8px;
  color: var(--danger);
  font-size: 0.78rem;
}
.hidden { display: none !important; }

/* Login particles */
.login-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.login-particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 50%;
  animation: float 6s linear infinite;
  opacity: 0;
}
@keyframes float {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  20% { opacity: 0.6; }
  80% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1.5); }
}

/* ─── Matrix Screen ─────────────────────────────── */
.matrix-screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.matrix-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border-bottom: 1px solid #222;
  z-index: 10;
  gap: 1rem;
}

.matrix-brand {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.matrix-stats {
  display: flex;
  gap: 1rem;
  font-size: 0.72rem;
  color: var(--text-dim);
}
.stat { white-space: nowrap; }

.matrix-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ctrl-btn {
  padding: 0.3rem 0.7rem;
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid #333;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.75rem;
  transition: all 0.15s;
  white-space: nowrap;
}
.ctrl-btn:hover { border-color: var(--accent); color: var(--accent); }
.ctrl-btn:disabled { opacity: 0.4; cursor: default; }

.user-pill {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.5rem;
  background: var(--bg-elevated);
  border: 1px solid #333;
  border-radius: 20px;
}
.pill-avatar { width: 20px; height: 20px; border-radius: 50%; }
.pill-name { font-size: 0.7rem; color: var(--text-dim); max-width: 80px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pill-logout {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 0 2px;
}
.pill-logout:hover { color: var(--danger); }

.three-container {
  flex: 1;
  position: relative;
  cursor: grab;
}
.three-container:active { cursor: grabbing; }

/* ─── Node Tooltip ──────────────────────────────── */
.node-tooltip {
  position: fixed;
  background: var(--bg-card);
  border: 1px solid #333;
  border-radius: 10px;
  padding: 0.75rem;
  min-width: 200px;
  max-width: 300px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.6);
  z-index: 100;
  pointer-events: auto;
  transform: translate(-50%, -110%);
}
.tt-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.3rem; gap: 0.5rem; }
#tt-title { font-weight: 700; font-size: 0.85rem; color: var(--accent); }
.tt-folder { font-size: 0.6rem; background: var(--bg-elevated); padding: 1px 6px; border-radius: 4px; color: var(--text-dim); white-space: nowrap; }
#tt-summary { font-size: 0.75rem; color: var(--text-dim); line-height: 1.4; margin-bottom: 0.5rem; }
.tt-actions { display: flex; gap: 0.4rem; }
.tt-btn {
  font-size: 0.68rem;
  padding: 0.2rem 0.5rem;
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid #333;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}
.tt-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ─── Filters ────────────────────────────────────── */
.matrix-filters {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.6rem;
  background: var(--bg-card);
  border: 1px solid #222;
  border-radius: 20px;
  z-index: 10;
}
.filt-btn {
  padding: 0.2rem 0.6rem;
  background: none;
  color: var(--text-dim);
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  font-size: 0.7rem;
  transition: all 0.15s;
}
.filt-btn:hover { color: var(--text); }
.filt-btn.active { background: var(--bg-elevated); border-color: #333; color: var(--accent); }
.filt-sep { width: 1px; height: 14px; background: #333; }
.filt-label {
  font-size: 0.65rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
}
.filt-label input { accent-color: var(--accent); width: 12px; height: 12px; }

/* ─── Compile Overlay ────────────────────────────── */
.compile-overlay {
  position: fixed;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid #333;
  border-radius: 12px;
  padding: 0.75rem 1.25rem;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 280px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.6);
}
.compile-log-line {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
}
.compile-log-line.success { color: var(--accent); }
.compile-log-line.error { color: var(--danger); }
.compile-log-line.info { color: #90caf9; }

/* ─── Responsive ─────────────────────────────────── */
@media (max-width: 768px) {
  .login-center { padding: 2rem 1.5rem; }
  .matrix-header { flex-wrap: wrap; gap: 0.3rem; padding: 0.4rem 0.6rem; }
  .matrix-brand { font-size: 0.8rem; }
  .matrix-stats { font-size: 0.65rem; gap: 0.5rem; }
  .matrix-filters { bottom: 8px; gap: 0.2rem; padding: 0.25rem 0.4rem; }
  .filt-btn { font-size: 0.62rem; padding: 0.15rem 0.4rem; }
}