/* UI Components */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  font-family: inherit;
}

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

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

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-surface-hover);
  border-color: var(--color-primary);
}

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

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-surface);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

/* Cards */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--space-6);
}

.card-hover {
  transition: all var(--transition-base);
}

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

.card-title {
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.card-content {
  color: var(--color-text-muted);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
}

.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: all var(--transition-base);
}

.card-link:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-family: inherit;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.form-error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--space-2);
}

.form-hint {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin-top: var(--space-2);
}

/* Checkbox & Radio */
.form-checkbox,
.form-radio {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  margin-bottom: var(--space-3);
}

.form-checkbox input,
.form-radio input {
  width: auto;
  cursor: pointer;
}

/* Alert / Toast */
.alert {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s ease-out;
}

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

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

.alert.alert-dismissing {
  animation: slideOutRight 0.3s ease-out forwards;
}

.alert-success {
  background-color: rgba(74, 222, 128, 0.1);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

.alert-warning {
  background-color: rgba(251, 191, 36, 0.1);
  border: 1px solid var(--color-warning);
  color: var(--color-warning);
}

.alert-info {
  background-color: rgba(59, 130, 246, 0.1);
  border: 1px solid var(--color-info);
  color: var(--color-info);
}

/* Alert Container */
.alert-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-tooltip);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 400px;
  pointer-events: none;
}

.alert-container .alert {
  pointer-events: auto;
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.spinner-lg {
  width: 60px;
  height: 60px;
  border-width: 6px;
}

.spinner-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-8);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  background-color: var(--color-surface);
  color: var(--color-text);
}

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

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

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

/* Divider */
.divider {
  height: 1px;
  background-color: var(--color-border);
  margin: var(--space-6) 0;
}

/* Table */
.table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-6);
}

.table th,
.table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

/* Collapsible */
.collapsible {
  margin-bottom: var(--space-4);
}

.collapsible-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.collapsible-header:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-primary);
}

.collapsible-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.collapsible.is-open .collapsible-content {
  max-height: 2000px;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.collapsible-icon {
  transition: transform var(--transition-fast);
}

.collapsible.is-open .collapsible-icon {
  transform: rotate(180deg);
}

/* Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.75);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.modal-backdrop-show {
  opacity: 1;
}

.modal {
  background-color: var(--color-surface-elevated);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  max-width: 500px;
  width: 100%;
  transform: scale(0.95);
  opacity: 0;
  transition: all var(--transition-base);
}

.modal-show {
  transform: scale(1);
  opacity: 1;
}

.modal-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

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

.modal-body {
  padding: var(--space-6);
}

.modal-body p {
  margin: 0;
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.modal-footer {
  padding: var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* Form Input States with Animations */
.form-input.has-error,
.form-select.has-error,
.form-textarea.has-error {
  border-color: var(--color-error);
  animation: shake 0.3s ease-in-out;
}

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

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  transform: translateY(-1px);
}

/* Enhanced Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  font-family: inherit;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-primary-hover) 0%, #d04a1a 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Enhanced Card Styles */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--space-6);
  border: 1px solid transparent;
  transition: all var(--transition-base);
}

.card-hover {
  transition: all var(--transition-base);
}

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

/* Enhanced Tabs */
.tabs {
  display: flex;
  gap: var(--space-2);
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-6);
}

.tab {
  padding: var(--space-3) var(--space-6);
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
}

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

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

.tab-content {
  display: none;
  animation: fadeIn var(--transition-base);
}

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

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

/* Enhanced Table */
.table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-6);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table th,
.table td {
  padding: var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--color-surface-hover);
}

.table tbody tr {
  transition: background-color var(--transition-fast);
}

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

.table tbody tr:last-child td {
  border-bottom: none;
}

/* Page Transitions */
@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.container {
  animation: pageEnter var(--transition-slow) var(--ease-out);
}

/* Loading States */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  color: white;
}

/* Success Animation Overlay */
.success-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.success-overlay-show {
  opacity: 1;
}

.success-overlay-hide {
  opacity: 0;
}

.success-overlay-content {
  animation: successScaleIn 0.4s var(--ease-bounce);
}

.success-overlay-hide .success-overlay-content {
  animation: successScaleOut 0.3s var(--ease-in);
}

.success-gif-container {
  position: relative;
  max-width: 90vw;
  max-height: 80vh;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(255, 107, 53, 0.5), 
              0 0 0 1px rgba(255, 107, 53, 0.3),
              0 0 40px rgba(255, 107, 53, 0.4);
}

.success-gif {
  display: block;
  width: 100%;
  height: auto;
  max-width: 600px;
}

@keyframes successScaleIn {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes successScaleOut {
  from {
    transform: scale(1);
    opacity: 1;
  }
  to {
    transform: scale(0.9);
    opacity: 0;
  }
}

/* Confetti Effect */
.confetti-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.confetti {
  position: absolute;
  width: 10px;
  height: 10px;
  top: -10px;
  opacity: 0;
  animation: confettiFall 2s linear forwards;
}

@keyframes confettiFall {
  0% {
    top: -10px;
    opacity: 1;
    transform: translateX(0) rotate(0deg);
  }
  100% {
    top: 100vh;
    opacity: 0;
    transform: translateX(var(--confetti-drift, 0)) rotate(720deg);
  }
}

.confetti:nth-child(odd) {
  --confetti-drift: 50px;
}

.confetti:nth-child(even) {
  --confetti-drift: -50px;
}