@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* ==========================================================================
     DESIGN TOKENS - EVENTIUM B2B PROFESSIONAL THEME
     ========================================================================== */
  
  /* Colors - Backgrounds & Surfaces */
  --bg-main: #0B0F19; /* Very deep blue-black */
  --bg-surface: #151A26; /* Slightly lighter surface for cards/panels */
  --bg-surface-hover: #1E2532;
  --bg-surface-active: #272F40;
  
  /* Colors - Accents */
  --accent-primary: #4338CA; /* Indigo 700 - Professional & Trustworthy */
  --accent-primary-hover: #3730A3; /* Indigo 800 */
  --accent-secondary: #3B82F6; /* Blue 500 - Links and highlights */
  
  /* Colors - Feedback / Semantic */
  --semantic-success: #10B981; /* Emerald 500 */
  --semantic-warning: #F59E0B; /* Amber 500 */
  --semantic-error: #EF4444; /* Red 500 */
  --semantic-info: #3B82F6; /* Blue 500 */
  
  /* Colors - Text & Typography */
  --text-primary: #F9FAFB; /* Gray 50 */
  --text-secondary: #9CA3AF; /* Gray 400 */
  --text-tertiary: #6B7280; /* Gray 500 */
  --text-on-accent: #FFFFFF;
  
  /* Colors - Borders & Dividers */
  --border-subtle: #1F2937; /* Gray 800 */
  --border-strong: #374151; /* Gray 700 */
  
  /* Typography */
  --font-family-base: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Shadows & Elevations */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 15px rgba(67, 56, 202, 0.4);
  
  /* Spacing (8px scale) */
  --space-1: 0.25rem; /* 4px */
  --space-2: 0.5rem;  /* 8px */
  --space-3: 0.75rem; /* 12px */
  --space-4: 1rem;    /* 16px */
  --space-6: 1.5rem;  /* 24px */
  --space-8: 2rem;    /* 32px */
  --space-12: 3rem;   /* 48px */
  --space-16: 4rem;   /* 64px */
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms ease-in-out;

  /* ==========================================================================
     LEGACY COMPATIBILITY ALIASES (For Profile, Events, etc.)
     ========================================================================== */
  --primary-color: var(--accent-primary);
  --primary-dark: var(--accent-primary-hover);
  --primary-light: #818cf8;
  
  --secondary-color: var(--semantic-success);
  --secondary-dark: #059669;
  --secondary-light: #6ee7b7;
  
  --danger-color: var(--semantic-error);
  --warning-color: var(--semantic-warning);
  --info-color: var(--semantic-info);
  
  --bg-primary: var(--bg-main);
  --bg-secondary: var(--bg-surface);
  --bg-tertiary: var(--bg-surface-hover);
  --border-color: var(--border-subtle);

  --spacing-xs: var(--space-1);
  --spacing-sm: var(--space-2);
  --spacing-md: var(--space-4);
  --spacing-lg: var(--space-6);
  --spacing-xl: var(--space-8);
  --spacing-2xl: var(--space-12);
  --spacing-3xl: var(--space-16);

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-weight-black: 900;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* ==========================================================================
     BACKOFFICE --bo-* ALIASES (Dark Theme Mappings)
     Used by event_form, blueprint_form, dashboard, event_form_enhanced
     ========================================================================== */
  --bo-primary: #6366f1;
  --bo-primary-50: rgba(99, 102, 241, 0.05);
  --bo-primary-100: rgba(99, 102, 241, 0.15);

  --bo-success: var(--semantic-success);
  --bo-danger: var(--semantic-error);

  /* Grays → Dark theme equivalents (NOT actual gray colors) */
  --bo-gray-50: #1a1f2e;   /* Was #F9FAFB — now dark surface */
  --bo-gray-100: #1e2532;  /* Was #F3F4F6 — now slightly lighter */
  --bo-gray-200: #2a3141;  /* Was #E5E7EB — now border-like */
  --bo-gray-300: #374151;  /* Was #D1D5DB — now strong border */
  --bo-gray-400: #6B7280;  /* Remains similar — muted text */
  --bo-gray-500: #9CA3AF;  /* Remains — secondary text */
  --bo-gray-600: #D1D5DB;  /* INVERTED — was dark, now light for readability */
  --bo-gray-700: #E5E7EB;  /* INVERTED — labels should be light */
  --bo-gray-800: #F3F4F6;  /* INVERTED — headings should be bright */
  --bo-gray-900: #F9FAFB;  /* INVERTED — strongest text */

  --bo-bg-card: var(--bg-surface);
  --bo-border: var(--border-strong);
  --bo-text-primary: var(--text-primary);
  --bo-text-secondary: var(--text-secondary);
  --bo-text-light: var(--text-tertiary);
  --bo-radius: var(--radius-lg);
  --bo-radius-lg: var(--radius-xl);
  --bo-shadow-md: var(--shadow-md);
}

/* Base Reset & Globals */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--bg-main);
  color: var(--text-primary);
  margin: 0;
  padding: 0;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 600;
  margin-top: 0;
  margin-bottom: var(--space-4);
  line-height: 1.2;
}

a {
  color: var(--accent-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--text-primary);
}

/* ==========================================================================
   SHARED UI COMPONENTS
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
  outline: none;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: var(--text-on-accent);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--accent-primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--text-secondary);
}

.btn-danger {
  background-color: transparent;
  color: var(--semantic-error);
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background-color: rgba(239, 68, 68, 0.1);
  border-color: var(--semantic-error);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.form-control, .form-input {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  background-color: var(--bg-main);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-family-base);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.form-control:focus, .form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(67, 56, 202, 0.2);
}

.form-control::placeholder, .form-input::placeholder {
  color: var(--text-tertiary);
}

/* Cards */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  padding: var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
}

.card-body {
  padding: var(--space-4);
}

.card-footer {
  padding: var(--space-4);
  border-top: 1px solid var(--border-subtle);
  background-color: rgba(0,0,0,0.1);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--semantic-success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--semantic-warning);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-info {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--semantic-info);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge-draft {
  background-color: rgba(107, 114, 128, 0.1);
  color: var(--text-secondary);
  border: 1px solid rgba(107, 114, 128, 0.2);
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }