/* ================================
   CAMPAIGNHQ DESIGN SYSTEM
   ================================ */

:root {
  /* === COLORS - LIGHT MODE === */
  
  /* Primary Brand */
  --color-primary: #6366F1;
  --color-primary-hover: #4F46E5;
  --color-primary-light: #EEF2FF;
  
  /* Secondary Brand */
  --color-secondary: #8B5CF6;
  --color-secondary-hover: #7C3AED;
  
  /* Accent Colors */
  --color-accent: #EC4899;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;
  --color-info: #3B82F6;
  
  /* Neutral Colors */
  --color-background: #F9FAFB;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F8FAFC;
  --color-surface-hover: #F3F4F6;
  --color-border: #E5E7EB;
  --color-border-strong: #D1D5DB;
  
  /* Text Colors */
  --color-text: #111827;
  --color-text-muted: #6B7280;
  --color-text-light: #9CA3AF;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Typography */
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
}

/* === DARK MODE === */
[data-theme="dark"] {
  --color-primary: #818CF8;
  --color-primary-hover: #A5B4FC;
  --color-primary-light: #1E1B4B;
  
  --color-secondary: #A78BFA;
  --color-secondary-hover: #C4B5FD;
  
  --color-background: #0F172A;
  --color-surface: #1E293B;
  --color-surface-alt: #2D3A4F;
  --color-surface-hover: #334155;
  --color-border: #334155;
  --color-border-strong: #475569;
  
  --color-text: #F1F5F9;
  --color-text-muted: #94A3B8;
  --color-text-light: #64748B;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

.text-main {
  color: var(--color-text) !important;
}

.text-muted {
  color: var(--color-text-muted) !important;
}

/* === BASE STYLES === */
* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  background-color: var(--color-background);
  color: var(--color-text);
  transition: background-color var(--transition-base), color var(--transition-base);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
}

p {
  margin: 0;
  line-height: 1.6;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
  margin: 0;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-background);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* Sidebar Styles */
.sidebar-container {
  transition: width var(--transition-base), transform var(--transition-base);
  z-index: 50;
}

.sidebar-container.collapsed {
  width: 80px !important;
}

.sidebar-container.collapsed .sidebar-text {
  display: none;
}

/* Mobile Sidebar */
@media (max-width: 768px) {
  .sidebar-container {
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    transform: translateX(-100%);
  }
  
  .sidebar-container.mobile-open {
    transform: translateX(0);
    width: 280px !important;
  }

  .sidebar-container.mobile-open .sidebar-text {
    display: block !important;
  }
  
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 40;
    backdrop-filter: blur(4px);
  }
  
  .sidebar-overlay.active {
    display: block;
  }
}

.nav-item:not(.active):hover {
  background-color: var(--color-surface-hover);
}

/* Card Component */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.card-body {
  padding: var(--spacing-lg);
}

/* Button Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

.btn-success {
  background-color: var(--color-success);
  color: #ffffff;
}

.btn-danger {
  background-color: var(--color-danger);
  color: #ffffff;
}

/* Form Inputs */
.form-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input::placeholder {
  color: var(--color-text-light);
}

/* Badge Components */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

.badge-danger {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}

.badge-info {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--color-info);
}

/* Table Styles */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  background-color: var(--color-surface-hover);
  border-bottom: 1px solid var(--color-border);
}

.data-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.data-table tr:hover {
  background-color: var(--color-surface-hover);
}

/* Stat Card */
.stat-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-text);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.text-muted {
  color: var(--color-text-muted);
}

.text-success {
  color: var(--color-success);
}

.text-warning {
  color: var(--color-warning);
}

.text-danger {
  color: var(--color-danger);
}