@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* SAAS WhatsApp Color Palette */
  --primary: #128C7E;
  --primary-dark: #075E54;
  --primary-light: #25D366;
  --bg-color: #F8FAFC;
  --surface-color: #FFFFFF;
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --border-color: #E2E8F0;
  --danger: #EF4444;
  --danger-hover: #DC2626;
  
  /* Shadows & Glassmorphism */
  --shadow-sm: 0 1px 2px 0 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);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-blur: blur(12px);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;

  /* Theme Toggle Button Style */
  --btn-toggle-bg: rgba(0, 0, 0, 0.05);
  --btn-toggle-hover: rgba(0, 0, 0, 0.1);
  --btn-toggle-color: #475569;
}

/* Dark Theme Variables */
[data-theme='dark'] {
  --bg-color: #0F172A;
  --surface-color: #1E293B;
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --border-color: #334155;
  
  --glass-bg: rgba(30, 41, 59, 0.85);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(16px);
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --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);
  
  --btn-toggle-bg: rgba(255, 255, 255, 0.1);
  --btn-toggle-hover: rgba(255, 255, 255, 0.2);
  --btn-toggle-color: #E2E8F0;
  
  /* Slightly desaturated primary for better dark contrast */
  --primary: #10B981; 
  --primary-dark: #059669;
  --primary-light: #34D399;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* Base button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  background: var(--primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

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

.btn:active {
  transform: translateY(0);
}

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

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

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.5s ease-out forwards;
}

/* Theme Toggle Button global class */
.theme-toggle-btn {
  background: var(--btn-toggle-bg);
  border: 1px solid transparent;
  color: var(--btn-toggle-color);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.theme-toggle-btn:hover {
  background: var(--btn-toggle-hover);
  transform: rotate(15deg);
}

.theme-switch-wrapper {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 100;
}