/* ===== CSS VARIABLES — WhatsApp-Inspired Theme ===== */
:root {
  /* Primary Colors (WhatsApp palette) */
  --primary: #25D366;
  --primary-dark: #128C7E;
  --primary-light: #dcfce7;
  --accent: #075E54;

  /* Status Colors */
  --success: #25D366;
  --success-light: #dcfce7;
  --warning: #d97706;
  --warning-light: #fef3c7;
  --danger: #dc2626;
  --danger-light: #fee2e2;

  /* Neutral Colors */
  --bg: #F5F7FA;
  --bg-white: #ffffff;
  --border: #e5e7eb;
  --text: #1F2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;

  /* Sidebar */
  --sidebar-bg: #075E54;
  --sidebar-text: #c8e6c9;
  --sidebar-hover: #128C7E;
  --sidebar-active: #25D366;
  --sidebar-width: 260px;

  /* Sizing */
  --topbar-height: 60px;
  --radius: 8px;
  --radius-sm: 4px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);

  /* Transitions */
  --transition: 150ms ease;
}