/* =========================
   Main CSS for Revolutionary Invoice System
   ========================= */

:root {
  /* Color Palette */
  --primary: #1E56A0;
  /* Sidebar / main blue */
  --primary-dark: #164183;
  /* darker variant */
  --secondary: #7c3aed;
  --success: #28A745;
  /* corrected green */
  --warning: #f59e0b;
  --danger: #dc2626;
  --info: #2563eb;

  --card-green: #D4F4E4;
  --card-blue: #DDE8FF;
  --card-orange: #FFE5D1;
  --card-red: #FFD6D6;

  --btn-green: #28A745;
  --btn-gray: #f8f9fa;

  --text-primary: #111827;
  /* darker for readability */
  --text-light: #ffffff;
  --text-dark: #111827;

  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 0.875rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-base: 1.5;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Border Radius */
  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  --border-radius-2xl: 1.5rem;

  /* 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), 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);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-Index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* Sidebar */
.sidebar {
  background-color: var(--primary);
  color: var(--text-light);
}

.sidebar .nav-link {
  color: var(--text-light);
}

.sidebar .nav-link.active {
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 8px;
}

/* Navbar */
.navbar {
  background-color: #ffffff;
  color: var(--text-dark);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Cards */
.card-green {
  background-color: var(--card-green);
}

.card-blue {
  background-color: var(--card-blue);
}

.card-orange {
  background-color: var(--card-orange);
}

.card-red {
  background-color: var(--card-red);
}

/* Buttons */
.btn-add {
  background-color: var(--btn-green);
  color: #fff;
}

.btn-add:hover {
  background-color: #218838;
}

.btn-upload {
  background-color: var(--btn-gray);
  color: var(--text-primary);
  border: 1px solid #ccc;
}

.btn-upload:hover {
  background-color: #e2e6ea;
}

.dropdown-menu {
  z-index: 2000 !important;
}

/* Tom Select Z-Index Fix */
.ts-dropdown,
.ts-wrapper.single.input-active .ts-dropdown,
.ts-dropdown.plugin-dropdown_input {
  z-index: 2000 !important;
}

.ts-wrapper {
  z-index: 1050;
  /* Ensure wrapper is above normal inputs */
}

.table-responsive {
  overflow: visible !important;
}