/* NEOBRUTALIST DESIGN SYSTEM - IMPROVED */
:root {
  /* Primary Palette - Bold & Vibrant */
  --nb-yellow: #FFD600;
  --nb-coral: #FF6B6B;
  --nb-cyan: #4ECDC4;
  --nb-purple: #9B59B6;
  --nb-green: #2ECC71;
  --nb-blue: #3498DB;
  
  /* Neutrals */
  --nb-black: #1A1A1A;
  --nb-white: #FFFFFF;
  --nb-bg: #E8E5F0;  /* Soft purple-gray background */
  --nb-gray-dark: #2C3E50;
  
  /* Borders & Shadows */
  --border: 4px solid var(--nb-black);
  --border-thin: 2px solid var(--nb-black);
  --shadow: 6px 6px 0 var(--nb-black);
  --shadow-hover: 8px 8px 0 var(--nb-black);
  --shadow-sm: 3px 3px 0 var(--nb-black);
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--nb-bg);
  color: var(--nb-black);
  line-height: 1.6;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

/* Card System */
.card {
  background: var(--nb-white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  transition: all 0.2s ease;
  position: relative;
}

.card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hover);
}

.card-yellow { background: var(--nb-yellow); }
.card-coral { background: var(--nb-coral); color: var(--nb-black); }
.card-cyan { background: var(--nb-cyan); }
.card-purple { background: var(--nb-purple); color: var(--nb-black); }
.card-green { background: var(--nb-green); color: var(--nb-black); }
.card-blue { background: var(--nb-blue); color: var(--nb-black); }

/* Stat Cards */
.stat-card {
  background: var(--nb-white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  text-align: center;
  transition: all 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: 'Space Grotesk', sans-serif;
  margin: 0.5rem 0;
}

.stat-label {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.8;
  font-weight: 600;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border: var(--border);
  background: var(--nb-yellow);
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--nb-black);
}

.btn-coral { background: var(--nb-coral); color: var(--nb-black); }
.btn-cyan { background: var(--nb-cyan); }
.btn-purple { background: var(--nb-purple); color: var(--nb-black); }

/* Loading States */
.loading {
  text-align: center;
  padding: 2rem;
  opacity: 0.7;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--nb-black);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
  margin: 1rem auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Error States */
.error {
  background: var(--nb-coral);
  border: var(--border);
  padding: 1rem;
  color: var(--nb-black);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}