:root {
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --accent-cyan: #06b6d4;
  --accent-purple: #7c3aed;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
}

html {
  font-size: 14px;
  position: relative;
  min-height: 100%;
}

@media (min-width: 768px) {
  html {
    font-size: 15px;
  }
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background-color: #f8fafc;
  color: #1e293b;
  letter-spacing: -0.01em;
}

/* essigner Brand Styling */
.brand-title {
  font-weight: 800;
  letter-spacing: -0.04em;
  font-size: 1.25rem;
  display: inline-flex;
  align-items: center;
  color: var(--slate-900);
  text-transform: lowercase;
}

.brand-gradient {
  background: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Card Elevate & Transitions */
.card-custom {
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 18px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.03), 0 2px 4px -2px rgba(0, 0, 0, 0.02);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  background: #ffffff;
}

.card-custom:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 25px -5px rgba(0, 0, 0, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
  border-color: rgba(199, 210, 254, 0.9);
}

.card-hero {
  border-radius: 24px;
  background: radial-gradient(circle at top right, #1e1b4b 0%, #0f172a 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 30px -10px rgba(15, 23, 42, 0.4);
}

/* Modern Bridge Pill */
.bridge-pill {
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 30px;
  padding: 6px 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.bridge-pill.connected {
  background-color: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
  box-shadow: 0 2px 4px rgba(16, 185, 129, 0.1);
}

.bridge-pill.disconnected {
  background-color: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.pulse-dot.online {
  background-color: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-green 2s infinite;
}

.pulse-dot.offline {
  background-color: #ef4444;
  box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  animation: pulse-red 2s infinite;
}

@@keyframes pulse-green {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@@keyframes pulse-red {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* Nav Item Tweaks */
.nav-link.active-studio {
  color: var(--primary-color) !important;
  font-weight: 700;
  background-color: var(--primary-light);
  border-radius: 8px;
}

/* Code Snippet Box */
.code-box {
  background: #0f172a;
  color: #38bdf8;
  border-radius: 12px;
  padding: 16px;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}