/* ═══════════════════════════════════════════════════════════
   Ernos System Visualiser — Base Styles
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a28;
  --bg-card-hover: #222236;
  --surface: #252538;
  --text-primary: #e8e8f0;
  --text-secondary: #9898b0;
  --text-muted: #58586e;
  --accent-blue: #4a8eff;
  --accent-purple: #8b5cf6;
  --accent-green: #22c55e;
  --accent-red: #ef4444;
  --accent-orange: #f59e0b;
  --accent-cyan: #06b6d4;
  --accent-pink: #ec4899;
  --accent-yellow: #eab308;
  --border: #2a2a40;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --nav-h: 56px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Navigation ──────────────────────────── */
#main-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 100;
  gap: 32px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-logo { font-size: 1.4rem; }
.nav-title {
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}
.nav-link {
  padding: 6px 16px;
  border-radius: 99px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s;
}
.nav-link:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.nav-link.active { color: #fff; background: rgba(74, 142, 255, 0.15); }
.nav-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.status-dot.offline { background: var(--accent-red); }
.status-dot.online  { background: var(--accent-green); animation: pulse-green 2s infinite; }

@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

/* ── Views ────────────────────────────────── */
.view {
  display: none;
  padding-top: calc(var(--nav-h) + 24px);
  min-height: 100vh;
}
.view.active { display: block; }
.view-header {
  text-align: center;
  padding: 40px 24px 32px;
  background: radial-gradient(ellipse at 50% 0%, rgba(74, 142, 255, 0.06) 0%, transparent 60%);
}
.view-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent-blue);
  margin-bottom: 8px;
}
.view-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}
.view-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ── Generic Container ────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Scrollbar ────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Utility ──────────────────────────────── */
.mono { font-family: 'JetBrains Mono', monospace; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

/* ── Responsive ───────────────────────────── */
@media (max-width: 768px) {
  #main-nav { gap: 16px; padding: 0 12px; }
  .nav-links { overflow-x: auto; }
  .view-header { padding: 24px 16px; }
}