/**
 * AECS4U Modern Component Library
 * Premium UI components for Italian real estate platform
 * Version: 2.0.0
 * Date: 2025-10-04
 *
 * Dependencies: design-tokens.css
 */

/* ============================================================
   BUTTON COMPONENTS
   ============================================================ */

.btn-v2 {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--btn-padding-y) var(--btn-padding-x);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  line-height: var(--leading-normal);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--btn-border-radius);
  cursor: pointer;
  transition: var(--btn-transition);
  white-space: nowrap;
  user-select: none;
}

.btn-v2:focus {
  outline: none;
  box-shadow: var(--input-focus-ring);
}

.btn-v2:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button Variants */
.btn-primary {
  background-color: var(--color-primary-600);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-primary-700);
}

.btn-primary:active {
  background-color: var(--color-primary-800);
}

.btn-secondary {
  background-color: var(--color-secondary-600);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--color-secondary-700);
}

.btn-success {
  background-color: var(--color-success-600);
  color: white;
}

.btn-success:hover {
  background-color: var(--color-success-700);
}

.btn-warning {
  background-color: var(--color-warning-600);
  color: white;
}

.btn-warning:hover {
  background-color: var(--color-warning-700);
}

.btn-danger {
  background-color: var(--color-danger-600);
  color: white;
}

.btn-danger:hover {
  background-color: var(--color-danger-700);
}

/* Outline Buttons */
.btn-outline-primary {
  background-color: transparent;
  border-color: var(--color-primary-600);
  color: var(--color-primary-600);
}

.btn-outline-primary:hover {
  background-color: var(--color-primary-50);
}

.btn-outline-secondary {
  background-color: transparent;
  border-color: var(--color-gray-300);
  color: var(--color-text-primary);
}

.btn-outline-secondary:hover {
  background-color: var(--color-gray-50);
}

/* Ghost Buttons */
.btn-ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-text-primary);
}

.btn-ghost:hover {
  background-color: var(--color-gray-100);
}

/* Button Sizes */
.btn-xs {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
}

.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-lg);
}

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

/* Icon Buttons */
.btn-icon {
  padding: var(--space-2);
  aspect-ratio: 1 / 1;
}

.btn-icon-sm {
  padding: var(--space-1);
}

.btn-icon-lg {
  padding: var(--space-3);
}

/* Button Groups */
.btn-group {
  display: inline-flex;
  gap: 0;
}

.btn-group .btn-v2 {
  border-radius: 0;
}

.btn-group .btn-v2:first-child {
  border-top-left-radius: var(--btn-border-radius);
  border-bottom-left-radius: var(--btn-border-radius);
}

.btn-group .btn-v2:last-child {
  border-top-right-radius: var(--btn-border-radius);
  border-bottom-right-radius: var(--btn-border-radius);
}

.btn-group .btn-v2:not(:last-child) {
  border-right-width: 0;
}

/* ============================================================
   CARD COMPONENTS
   ============================================================ */

.card-v2 {
  background-color: var(--color-bg-primary);
  border: var(--card-border-width) solid var(--card-border-color);
  border-radius: var(--card-border-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: var(--transition-base);
}

.card-v2:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}

.card-v2-header {
  padding: var(--card-padding);
  border-bottom: 1px solid var(--card-border-color);
}

.card-v2-title {
  margin: 0;
  font-size: var(--text-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.card-v2-subtitle {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.card-v2-body {
  padding: var(--card-padding);
}

.card-v2-footer {
  padding: var(--card-padding);
  border-top: 1px solid var(--card-border-color);
  background-color: var(--color-bg-secondary);
}

/* Property Card */
.property-card {
  width: var(--property-card-width);
  max-width: 100%;
}

.property-card-image {
  position: relative;
  width: 100%;
  height: var(--property-image-height);
  overflow: hidden;
  background-color: var(--color-gray-200);
}

.property-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-transform);
}

.property-card:hover .property-card-image img {
  transform: scale(1.05);
}

.property-card-badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  padding: var(--space-1) var(--space-3);
  background-color: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.property-card-badge.badge-featured {
  background-color: var(--color-accent-gold);
  color: white;
}

.property-card-badge.badge-new {
  background-color: var(--color-success-600);
  color: white;
}

.property-card-price {
  margin: var(--space-3) 0;
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-600);
}

.property-card-location {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.property-card-features {
  display: flex;
  gap: var(--space-4);
  margin: var(--space-3) 0;
  padding: var(--space-3) 0;
  border-top: 1px solid var(--card-border-color);
  border-bottom: 1px solid var(--card-border-color);
}

.property-card-feature {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.property-card-feature-icon {
  width: 16px;
  height: 16px;
  color: var(--color-text-tertiary);
}

.property-card-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

/* Stat Card */
.stat-card {
  padding: var(--card-padding);
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  color: white;
  border: none;
}

.stat-card-label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  opacity: 0.9;
}

.stat-card-value {
  margin: var(--space-2) 0;
  font-size: var(--text-4xl);
  font-weight: var(--font-weight-bold);
}

.stat-card-change {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
}

.stat-card-change.positive {
  background-color: rgba(16, 185, 129, 0.2);
}

.stat-card-change.negative {
  background-color: rgba(239, 68, 68, 0.2);
}

/* ============================================================
   FORM COMPONENTS
   ============================================================ */

.form-group-v2 {
  margin-bottom: var(--space-6);
}

.form-label-v2 {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.form-label-required::after {
  content: " *";
  color: var(--color-danger-600);
}

.form-control-v2 {
  display: block;
  width: 100%;
  padding: var(--input-padding-y) var(--input-padding-x);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: var(--input-border-width) solid var(--input-border-color);
  border-radius: var(--input-border-radius);
  transition: var(--transition-colors);
}

.form-control-v2:focus {
  outline: none;
  border-color: var(--input-focus-border-color);
  box-shadow: var(--input-focus-ring);
}

.form-control-v2::placeholder {
  color: var(--color-text-muted);
}

.form-control-v2:disabled {
  background-color: var(--color-gray-100);
  cursor: not-allowed;
  opacity: 0.6;
}

/* Form Control Sizes */
.form-control-sm {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
}

.form-control-lg {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-lg);
}

/* Form States */
.form-control-v2.is-valid {
  border-color: var(--color-success-600);
}

.form-control-v2.is-invalid {
  border-color: var(--color-danger-600);
}

.form-control-v2.is-valid:focus {
  box-shadow: 0 0 0 3px var(--color-success-100);
}

.form-control-v2.is-invalid:focus {
  box-shadow: 0 0 0 3px var(--color-danger-100);
}

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

.form-feedback.valid-feedback {
  color: var(--color-success-600);
}

.form-feedback.invalid-feedback {
  color: var(--color-danger-600);
}

.form-text {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

/* Select */
.form-select-v2 {
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 16px 12px;
  padding-right: var(--space-10);
}

/* Checkbox & Radio */
.form-check-v2 {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.form-check-input-v2 {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  cursor: pointer;
  border: var(--input-border-width) solid var(--input-border-color);
  transition: var(--transition-colors);
}

.form-check-input-v2[type="checkbox"] {
  border-radius: var(--radius-sm);
}

.form-check-input-v2[type="radio"] {
  border-radius: var(--radius-full);
}

.form-check-input-v2:checked {
  background-color: var(--color-primary-600);
  border-color: var(--color-primary-600);
}

.form-check-input-v2:focus {
  outline: none;
  box-shadow: var(--input-focus-ring);
}

.form-check-label-v2 {
  font-size: var(--text-base);
  color: var(--color-text-primary);
  cursor: pointer;
  user-select: none;
}

/* Switch */
.form-switch-v2 {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.form-switch-v2 input {
  opacity: 0;
  width: 0;
  height: 0;
}

.form-switch-slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-gray-300);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-colors);
}

.form-switch-slider::before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: var(--radius-full);
  transition: var(--transition-transform);
}

.form-switch-v2 input:checked + .form-switch-slider {
  background-color: var(--color-primary-600);
}

.form-switch-v2 input:checked + .form-switch-slider::before {
  transform: translateX(20px);
}

.form-switch-v2 input:focus + .form-switch-slider {
  box-shadow: var(--input-focus-ring);
}

/* Range Slider */
.form-range-v2 {
  width: 100%;
  height: 6px;
  appearance: none;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  outline: none;
  cursor: pointer;
}

.form-range-v2::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--color-primary-600);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-transform);
}

.form-range-v2::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.form-range-v2::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--color-primary-600);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-transform);
}

.form-range-v2::-moz-range-thumb:hover {
  transform: scale(1.1);
}

/* ============================================================
   BADGE COMPONENTS
   ============================================================ */

.badge-v2 {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  line-height: var(--leading-tight);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-base);
}

.badge-primary {
  background-color: var(--color-primary-100);
  color: var(--color-primary-700);
}

.badge-success {
  background-color: var(--color-success-100);
  color: var(--color-success-700);
}

.badge-warning {
  background-color: var(--color-warning-100);
  color: var(--color-warning-700);
}

.badge-danger {
  background-color: var(--color-danger-100);
  color: var(--color-danger-700);
}

.badge-info {
  background-color: var(--color-info-100);
  color: var(--color-info-700);
}

.badge-lg {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
}

.badge-pill {
  border-radius: var(--radius-full);
}

/* ============================================================
   ALERT COMPONENTS
   ============================================================ */

.alert-v2 {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border-left: 4px solid;
}

.alert-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.alert-content {
  flex: 1;
}

.alert-title {
  margin: 0 0 var(--space-1) 0;
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
}

.alert-message {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.alert-primary {
  background-color: var(--color-primary-50);
  border-left-color: var(--color-primary-600);
  color: var(--color-primary-900);
}

.alert-success {
  background-color: var(--color-success-50);
  border-left-color: var(--color-success-600);
  color: var(--color-success-900);
}

.alert-warning {
  background-color: var(--color-warning-50);
  border-left-color: var(--color-warning-600);
  color: var(--color-warning-900);
}

.alert-danger {
  background-color: var(--color-danger-50);
  border-left-color: var(--color-danger-600);
  color: var(--color-danger-900);
}

.alert-info {
  background-color: var(--color-info-50);
  border-left-color: var(--color-info-600);
  color: var(--color-info-900);
}

/* ============================================================
   PAGINATION COMPONENTS
   ============================================================ */

.pagination-v2 {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.page-item {
  list-style: none;
}

.page-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-md);
  transition: var(--transition-colors);
}

.page-link:hover {
  background-color: var(--color-gray-50);
  border-color: var(--color-primary-500);
  color: var(--color-primary-600);
}

.page-item.active .page-link {
  background-color: var(--color-primary-600);
  border-color: var(--color-primary-600);
  color: white;
}

.page-item.disabled .page-link {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ============================================================
   TOAST/NOTIFICATION COMPONENTS
   ============================================================ */

.toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-notification);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 400px;
}

.toast-v2 {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background-color: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: toast-slide-in var(--duration-300) var(--ease-out);
}

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

.toast-v2.toast-success {
  border-left: 4px solid var(--color-success-600);
}

.toast-v2.toast-warning {
  border-left: 4px solid var(--color-warning-600);
}

.toast-v2.toast-danger {
  border-left: 4px solid var(--color-danger-600);
}

.toast-v2.toast-info {
  border-left: 4px solid var(--color-info-600);
}

.toast-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.toast-content {
  flex: 1;
}

.toast-title {
  margin: 0 0 var(--space-1) 0;
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
}

.toast-message {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.toast-close {
  flex-shrink: 0;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: var(--color-text-tertiary);
  transition: var(--transition-colors);
}

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

/* ============================================================
   MODAL COMPONENTS
   ============================================================ */

.modal-v2-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  animation: fade-in var(--duration-200) var(--ease-out);
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal-v2 {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  background-color: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  z-index: var(--z-modal);
  animation: modal-slide-up var(--duration-300) var(--ease-out);
}

@keyframes modal-slide-up {
  from {
    transform: translate(-50%, -40%);
    opacity: 0;
  }
  to {
    transform: translate(-50%, -50%);
    opacity: 1;
  }
}

.modal-v2-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}

.modal-v2-title {
  margin: 0;
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-semibold);
}

.modal-v2-close {
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  color: var(--color-text-tertiary);
  transition: var(--transition-colors);
  border-radius: var(--radius-md);
}

.modal-v2-close:hover {
  background-color: var(--color-gray-100);
  color: var(--color-text-primary);
}

.modal-v2-body {
  padding: var(--space-6);
  max-height: calc(90vh - 200px);
  overflow-y: auto;
}

.modal-v2-footer {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  padding: var(--space-6);
  border-top: 1px solid var(--color-border-light);
}

/* ============================================================
   TOOLTIP COMPONENTS
   ============================================================ */

.tooltip-v2 {
  position: absolute;
  z-index: var(--z-tooltip);
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-gray-900);
  color: white;
  font-size: var(--text-xs);
  border-radius: var(--radius-md);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration-200) var(--ease-out);
}

.tooltip-v2.show {
  opacity: 1;
}

.tooltip-v2::after {
  content: "";
  position: absolute;
  border: 4px solid transparent;
}

.tooltip-v2.top::after {
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-top-color: var(--color-gray-900);
}

.tooltip-v2.bottom::after {
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-bottom-color: var(--color-gray-900);
}

/* ============================================================
   RESPONSIVE UTILITIES
   ============================================================ */

@media (max-width: 768px) {
  .property-card {
    width: 100%;
  }

  .modal-v2 {
    width: 95%;
    max-height: 95vh;
  }

  .toast-container {
    right: var(--space-3);
    left: var(--space-3);
    max-width: none;
  }
}

@media (prefers-color-scheme: dark) {
  .modal-v2 {
    background-color: var(--color-gray-800);
  }

  .toast-v2 {
    background-color: var(--color-gray-800);
  }
}