/* ====================================
   QA-BOT Global Styles
   ==================================== */

/* CSS Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Color Palette */
  --primary-blue: #2563eb;
  --primary-blue-hover: #1d4ed8;
  --primary-blue-light: #dbeafe;
  --secondary-purple: #7c3aed;
  --secondary-purple-hover: #6d28d9;
  
  --success-green: #10b981;
  --success-green-light: #d1fae5;
  --warning-yellow: #f59e0b;
  --warning-yellow-light: #fef3c7;
  --error-red: #ef4444;
  --error-red-light: #fee2e2;
  --info-blue: #3b82f6;
  --info-blue-light: #dbeafe;
  
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  --white: #ffffff;
  --black: #000000;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Borders */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* 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);
  
  /* Layout */
  --sidebar-width: 260px;
  --header-height: 64px;
  --max-content-width: 1400px;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
}

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

body {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--gray-900);
  background-color: var(--gray-50);
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.25;
  color: var(--gray-900);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
  margin-bottom: var(--spacing-md);
}

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

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

a:focus-visible {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-blue-hover);
  text-decoration: none;
}

.btn-secondary {
  background-color: var(--white);
  color: var(--gray-700);
  border-color: var(--gray-300);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--gray-50);
  border-color: var(--gray-400);
  text-decoration: none;
}

.btn-success {
  background-color: var(--success-green);
  color: var(--white);
}

.btn-success:hover:not(:disabled) {
  background-color: #059669;
  text-decoration: none;
}

.btn-danger {
  background-color: var(--error-red);
  color: var(--white);
}

.btn-danger:hover:not(:disabled) {
  background-color: #dc2626;
  text-decoration: none;
}

.btn-ghost {
  background-color: transparent;
  color: var(--gray-700);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--gray-100);
  text-decoration: none;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--gray-700);
  font-size: 0.875rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--gray-900);
  background-color: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px var(--primary-blue-light);
}

input::placeholder,
textarea::placeholder {
  color: var(--gray-400);
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
}

textarea {
  resize: vertical;
  min-height: 100px;
}

/* Checkboxes & Radio */
input[type="checkbox"],
input[type="radio"] {
  width: 1rem;
  height: 1rem;
  cursor: pointer;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
}

input[type="radio"] {
  border-radius: 50%;
}

input[type="checkbox"]:checked,
input[type="radio"]:checked {
  background-color: var(--primary-blue);
  border-color: var(--primary-blue);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3125rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 600;
  line-height: 1;
  border-radius: 9999px;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.badge-primary { 
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  color: var(--primary-blue);
  border: 1px solid rgba(37, 99, 235, 0.2);
}
.badge-success { 
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
  color: #047857;
  border: 1px solid rgba(16, 185, 129, 0.2);
}
.badge-warning { 
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.2);
}
.badge-danger { 
  background: linear-gradient(135deg, #fee2e2, #fecaca);
  color: var(--error-red);
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.badge-info { 
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  color: var(--info-blue);
  border: 1px solid rgba(59, 130, 246, 0.2);
}
.badge-gray { 
  background: linear-gradient(135deg, var(--gray-200), var(--gray-300));
  color: var(--gray-700);
  border: 1px solid rgba(107, 114, 128, 0.2);
}

/* Card */
.card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--gray-200);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
}

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

.card-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--gray-200);
  background-color: var(--gray-50);
}

/* Table */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.table thead {
  background-color: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}

.table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-900);
}

.table tbody tr:hover {
  background-color: var(--gray-50);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--spacing-lg);
}

.modal-overlay.hidden {
  display: none;
}

.modal {
  background-color: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--gray-200);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--gray-400);
  cursor: pointer;
  padding: var(--spacing-xs);
  line-height: 1;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--gray-600);
}

.modal-body {
  padding: var(--spacing-xl);
}

.modal-footer {
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
  padding: var(--spacing-xl);
  border-top: 1px solid var(--gray-200);
}

/* Tabs */
.tabs {
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  gap: var(--spacing-lg);
}

.tab {
  padding: var(--spacing-md) var(--spacing-sm);
  font-weight: 500;
  color: var(--gray-600);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.tab:hover {
  color: var(--gray-900);
  border-bottom-color: var(--gray-300);
}

.tab.active {
  color: var(--primary-blue);
  border-bottom-color: var(--primary-blue);
}

.tab-content {
  padding: var(--spacing-xl) 0;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

/* Alert */
.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid;
  margin-bottom: var(--spacing-lg);
}

.alert-success {
  background-color: var(--success-green-light);
  border-color: var(--success-green);
  color: #065f46;
}

.alert-warning {
  background-color: var(--warning-yellow-light);
  border-color: var(--warning-yellow);
  color: #92400e;
}

.alert-danger {
  background-color: var(--error-red-light);
  border-color: var(--error-red);
  color: #991b1b;
}

.alert-info {
  background-color: var(--info-blue-light);
  border-color: var(--info-blue);
  color: #1e40af;
}

/* Avatar */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-purple));
  color: var(--white);
  font-weight: 700;
  font-size: 0.875rem;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  border: 2px solid var(--white);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-sm {
  width: 2rem;
  height: 2rem;
  font-size: 0.6875rem;
  border: 2px solid var(--white);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.avatar-lg {
  width: 3rem;
  height: 3rem;
  font-size: 1rem;
  border: 3px solid var(--white);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

/* Dropdown */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--spacing-sm);
  min-width: 200px;
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-sm);
  z-index: 100;
}

.dropdown-menu.hidden {
  display: none;
}

.dropdown-item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--gray-700);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  width: 100%;
  text-align: left;
  border: none;
  background: none;
  font-size: 0.875rem;
}

.dropdown-item:hover {
  background-color: var(--gray-100);
  text-decoration: none;
}

.dropdown-divider {
  height: 1px;
  background-color: var(--gray-200);
  margin: var(--spacing-sm) 0;
}

/* Layout Components */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background-color: var(--white);
  border-right: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.sidebar-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.sidebar-nav {
  flex: 1;
  padding: var(--spacing-lg) 0;
}

.nav-section {
  margin-bottom: var(--spacing-xl);
}

.nav-section-title {
  padding: 0 var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--gray-700);
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  text-decoration: none;
}

.nav-item:hover {
  background-color: var(--gray-50);
  color: var(--gray-900);
  text-decoration: none;
}

.nav-item.active {
  background-color: var(--primary-blue-light);
  color: var(--primary-blue);
}

.nav-item-icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
}

.header {
  height: var(--header-height);
  background-color: var(--white);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-xl);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.page-content {
  flex: 1;
  padding: var(--spacing-lg) 0;
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
}

.page-header {
  margin-bottom: var(--spacing-xl);
}

.page-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

.page-subtitle {
  color: var(--gray-600);
  font-size: 0.875rem;
}

/* Utility Classes */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.text-center { text-align: center; }
.text-right { text-align: right; }

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-gray-500 { color: var(--gray-500); }
.text-gray-600 { color: var(--gray-600); }
.text-gray-700 { color: var(--gray-700); }
.text-gray-900 { color: var(--gray-900); }

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Responsive */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-base);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .grid-cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .grid-cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 100%;
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
  
  .page-content {
    padding: var(--spacing-md);
  }
  
  .header {
    padding: 0 var(--spacing-md);
  }
  
  .modal {
    max-width: 100%;
    margin: var(--spacing-md);
  }
}

/* Print */
@media print {
  .sidebar,
  .header,
  .btn,
  .dropdown {
    display: none;
  }
  
  .main-content {
    margin-left: 0;
  }
}