/* ================================================
   COMPONENT STYLES
   Reusable UI components and utilities
   ================================================ */

/* ================================================
   LOADING STATES
   ================================================ */

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--gray-200);
  border-top: 4px solid var(--primary-main);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.skeleton {
  background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ================================================
   CARDS & CONTAINERS
   ================================================ */

.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

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

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--spacing-sm);
}

.card-description {
  color: var(--text-secondary);
  margin-bottom: 0;
}

.card-content {
  margin-bottom: var(--spacing-lg);
}

.card-footer {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ================================================
   BADGES & LABELS
   ================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
}

.badge-primary {
  background: var(--primary-main);
  color: var(--white);
}

.badge-secondary {
  background: var(--secondary-main);
  color: var(--white);
}

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

.badge-warning {
  background: var(--warning);
  color: var(--white);
}

.badge-danger {
  background: var(--danger);
  color: var(--white);
}

.badge-outline {
  background: transparent;
  border: 1px solid currentColor;
}

/* ================================================
   FORMS & INPUTS
   ================================================ */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--spacing-sm);
}

.form-input {
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--text);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-main);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-input::placeholder {
  color: var(--gray-400);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-select {
  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;
  cursor: pointer;
}

.form-error {
  color: var(--danger);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

.form-help {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

/* ================================================
   ALERTS & NOTIFICATIONS
   ================================================ */

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

.alert-success {
  background: #f0fdf4;
  border-color: #bbf7d0;
  color: #166534;
}

.alert-warning {
  background: #fffbeb;
  border-color: #fed7aa;
  color: #92400e;
}

.alert-error {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

.alert-info {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: #1e40af;
}

.notification {
  position: fixed;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  max-width: 400px;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border);
  z-index: var(--z-tooltip);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
}

.notification.show {
  transform: translateX(0);
}

.notification-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.notification-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.notification-close {
  background: none;
  border: none;
  color: var(--gray-400);
  cursor: pointer;
  padding: 0;
  font-size: var(--font-size-lg);
}

.notification-close:hover {
  color: var(--text);
}

.notification-body {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* ================================================
   MODALS & OVERLAYS
   ================================================ */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  max-width: 500px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-overlay.show .modal {
  transform: scale(1) translateY(0);
}

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

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  color: var(--gray-400);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--gray-100);
  color: var(--text);
}

.modal-body {
  margin-bottom: var(--spacing-lg);
}

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

/* ================================================
   DROPDOWNS & MENUS
   ================================================ */

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

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-sm) 0;
  min-width: 200px;
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
}

.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--text);
  text-decoration: none;
  transition: background-color var(--transition-fast);
  font-size: var(--font-size-sm);
}

.dropdown-item:hover {
  background: var(--gray-50);
  color: var(--primary-main);
}

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

/* ================================================
   TABS
   ================================================ */

.tabs {
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--spacing-xl);
}

.tab-nav {
  display: flex;
  gap: var(--spacing-lg);
}

.tab-button {
  background: none;
  border: none;
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.tab-button:hover {
  color: var(--text);
}

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

.tab-content {
  display: none;
}

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

/* ================================================
   PROGRESS INDICATORS
   ================================================ */

.progress {
  width: 100%;
  height: 8px;
  background: var(--gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  position: relative;
}

.progress-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 20px;
  left: 50%;
  width: 100%;
  height: 2px;
  background: var(--gray-200);
  z-index: 1;
}

.progress-step.completed:not(:last-child)::after {
  background: var(--primary-main);
}

.progress-step-circle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--gray-200);
  color: var(--gray-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  position: relative;
  z-index: 2;
  transition: all var(--transition-fast);
}

.progress-step.completed .progress-step-circle {
  background: var(--primary-main);
  color: var(--white);
}

.progress-step.current .progress-step-circle {
  background: var(--white);
  color: var(--primary-main);
  border: 2px solid var(--primary-main);
}

.progress-step-label {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  text-align: center;
}

.progress-step.completed .progress-step-label {
  color: var(--primary-main);
}

/* ================================================
   ANIMATIONS & EFFECTS
   ================================================ */

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

.fade-out {
  animation: fadeOut 0.5s ease-in-out;
}

.slide-in-left {
  animation: slideInLeft 0.5s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.5s ease-out;
}

.slide-in-up {
  animation: slideInUp 0.5s ease-out;
}

.bounce-in {
  animation: bounceIn 0.6s ease-out;
}

.pulse {
  animation: pulse 2s infinite;
}

.shake {
  animation: shake 0.5s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes slideInLeft {
  from { transform: translateX(-100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes bounceIn {
  0% { transform: scale(0.3); opacity: 0; }
  50% { transform: scale(1.05); }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* ================================================
   UTILITY CLASSES
   ================================================ */

/* Display */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

/* Flex utilities */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.justify-start { justify-content: flex-start !important; }
.justify-center { justify-content: center !important; }
.justify-end { justify-content: flex-end !important; }
.justify-between { justify-content: space-between !important; }
.align-start { align-items: flex-start !important; }
.align-center { align-items: center !important; }
.align-end { align-items: flex-end !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }

/* Text utilities */
.text-left { text-align: left !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-uppercase { text-transform: uppercase !important; }
.text-lowercase { text-transform: lowercase !important; }
.text-capitalize { text-transform: capitalize !important; }
.text-primary { color: var(--primary-main) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-white { color: var(--white) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }

/* Background utilities */
.bg-primary { background-color: var(--primary-main) !important; }
.bg-secondary { background-color: var(--secondary-main) !important; }
.bg-white { background-color: var(--white) !important; }
.bg-gray { background-color: var(--gray-100) !important; }
.bg-success { background-color: var(--success) !important; }
.bg-warning { background-color: var(--warning) !important; }
.bg-danger { background-color: var(--danger) !important; }

/* Spacing utilities */
.m-0 { margin: 0 !important; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.ml-0 { margin-left: 0 !important; }
.mr-0 { margin-right: 0 !important; }

.p-0 { padding: 0 !important; }
.pt-0 { padding-top: 0 !important; }
.pb-0 { padding-bottom: 0 !important; }
.pl-0 { padding-left: 0 !important; }
.pr-0 { padding-right: 0 !important; }

/* Border utilities */
.border { border: 1px solid var(--border) !important; }
.border-top { border-top: 1px solid var(--border) !important; }
.border-bottom { border-bottom: 1px solid var(--border) !important; }
.border-left { border-left: 1px solid var(--border) !important; }
.border-right { border-right: 1px solid var(--border) !important; }
.border-0 { border: 0 !important; }

/* Border radius */
.rounded { border-radius: var(--radius-md) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-xl { border-radius: var(--radius-xl) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }

/* Shadow utilities */
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-xl { box-shadow: var(--shadow-xl) !important; }
.shadow-none { box-shadow: none !important; }

/* Position utilities */
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* Width/Height utilities */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }