/* Behavioral Elements Platform — Wireframe Styles */
:root {
  --primary: #2563EB;
  --primary-light: #3B82F6;
  --primary-dark: #1D4ED8;
  --secondary: #1E293B;
  --accent: #F59E0B;
  --accent-light: #FCD34D;
  --success: #10B981;
  --warning: #F97316;
  --error: #EF4444;
  --surface: #F8FAFC;
  --surface-alt: #F1F5F9;
  --surface-card: #FFFFFF;
  --border: #E2E8F0;
  --border-light: #F1F5F9;
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --gradient-hero: linear-gradient(135deg, #0F172A 0%, #1E293B 60%, #2563EB 100%);
  --gradient-primary: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
  --gradient-warm: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}

/* Section Dividers */
.section-divider {
  padding: 4rem 0 2rem;
  text-align: center;
}
.section-divider h2 {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.section-divider h3 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}
.section-divider p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0.75rem auto 0;
  line-height: 1.6;
}

/* Utility Classes */
.container { max-width: 1280px; margin: 0 auto; padding: 0 2rem; }
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-primary { background: rgba(37,99,235,0.1); color: var(--primary); }
.badge-success { background: rgba(16,185,129,0.1); color: var(--success); }
.badge-warning { background: rgba(249,115,22,0.1); color: var(--warning); }
.badge-accent { background: rgba(245,158,11,0.1); color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--surface-alt); color: var(--text-primary); border: 1px solid var(--border); }
.btn-accent { background: var(--accent); color: white; }
.btn-ghost { background: transparent; color: var(--primary); }

.card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

/* Progress bar */
.progress-bar {
  height: 0.5rem;
  background: var(--surface-alt);
  border-radius: 9999px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  border-radius: 9999px;
  transition: width 0.5s ease;
}

/* Data table */
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.data-table th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  background: var(--surface-alt);
  border-bottom: 1px solid var(--border);
}
.data-table th:first-child { border-radius: var(--radius-sm) 0 0 0; }
.data-table th:last-child { border-radius: 0 var(--radius-sm) 0 0; }
.data-table td {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border-light);
}
.data-table tr:hover td { background: var(--surface); }

/* Avatar */
.avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: white;
}

/* Sidebar nav */
.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}
.sidebar-nav-item:hover { background: rgba(37,99,235,0.05); color: var(--text-primary); }
.sidebar-nav-item.active { background: rgba(37,99,235,0.1); color: var(--primary); font-weight: 500; }

/* Stat card */
.stat-card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}
.stat-card .stat-value {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
}
.stat-card .stat-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}
.stat-card .stat-change {
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.stat-change.positive { color: var(--success); }
.stat-change.negative { color: var(--error); }

/* Screen labels */
.screen-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--secondary);
  color: white;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}