/* ============================================================
   style.css - Global Styles for prop4all
   Real Estate Website - Tamil Nadu, India
   ============================================================ */

/* Import theme variables */
@import url('./theme.css');

/* Google Fonts - Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-top: var(--header-height);
  overflow-x: hidden;
}

@media (max-width: 992px) {
  body {
    padding-top: var(--header-height-mobile);
  }
}

article, aside, details, figcaption, figure,
footer, header, hgroup, main, menu, nav, section {
  display: block;
}

ol, ul {
  list-style: none;
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 0;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
  width: 100%;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  outline: none;
  background: none;
}

input, textarea, select, button {
  font-family: inherit;
}

/* ============================================================
   Layout - Container
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.container-fluid {
  width: 100%;
  padding: 0 20px;
}

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: var(--font-size-4xl);
  letter-spacing: -0.025em;
}

h2 {
  font-size: var(--font-size-3xl);
  letter-spacing: -0.02em;
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--gray-600);
  line-height: 1.7;
}

small {
  font-size: var(--font-size-sm);
}

strong {
  font-weight: 600;
}

@media (max-width: 768px) {
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
  h4 { font-size: var(--font-size-lg); }
}

/* ============================================================
   Utility Classes
   ============================================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-wrap {
  flex-wrap: wrap;
}

.flex-column {
  flex-direction: column;
}

.align-center {
  align-items: center;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.grid {
  display: grid;
}

.hidden {
  display: none !important;
}

.show {
  display: block !important;
}

.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;
}

.w-100 { width: 100%; }
.mt-1 { margin-top: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-xl); }
.mb-1 { margin-top: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-xl); }

/* ============================================================
   Section Styles
   ============================================================ */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  text-align: center;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-bottom: var(--spacing-lg);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--secondary-color);
  border-radius: var(--radius-full);
}

.section-subtitle {
  text-align: center;
  color: var(--gray-500);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

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

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

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

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

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

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

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

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

.btn-ghost {
  background-color: transparent;
  color: var(--gray-600);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--gray-100);
  color: var(--gray-800);
}

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

.btn-danger:hover {
  background-color: #DC2626;
  border-color: #DC2626;
  color: var(--white);
}

.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 16px 32px;
  font-size: var(--font-size-lg);
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-full);
}

.btn-icon.btn-sm {
  width: 32px;
  height: 32px;
}

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

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: var(--spacing-xs);
}

.form-group label .required {
  color: var(--error);
  margin-left: 2px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="url"],
input[type="search"],
input[type="date"],
textarea,
select {
  width: 100%;
  padding: 12px 16px;
  font-size: 16px; /* Prevents iOS zoom on focus */
  font-family: var(--font-primary);
  color: var(--gray-800);
  background-color: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(0, 184, 148, 0.15);
}

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

input:disabled,
textarea:disabled,
select:disabled {
  background-color: var(--gray-100);
  cursor: not-allowed;
  opacity: 0.7;
}

textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8.825L.35 3.175l.7-.7L6 7.425l4.95-4.95.7.7z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

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

.form-hint {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--gray-400);
  margin-top: var(--spacing-xs);
}

input.error,
textarea.error,
select.error {
  border-color: var(--error);
}

input.error:focus,
textarea.error:focus,
select.error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.input-group {
  display: flex;
  align-items: stretch;
}

.input-group input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group .btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  white-space: nowrap;
}

.form-check {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--secondary-color);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

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

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

.card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

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

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

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

.card-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--gray-100);
}

/* Property Card Specific */
.property-card {
  position: relative;
}

.property-card .card-image .property-badges {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  display: flex;
  gap: var(--spacing-xs);
  z-index: 2;
}

.property-card .card-image .property-favorite {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 2;
  border: none;
  font-size: 18px;
}

.property-card .card-image .property-favorite:hover {
  background: var(--white);
  transform: scale(1.1);
}

.property-card .card-image .property-favorite.active {
  color: var(--error);
}

.property-card .property-price {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

.property-card .property-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.property-card .property-location {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.property-card .property-features {
  display: flex;
  gap: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--gray-100);
}

.property-card .property-features .feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

.property-card .property-features .feature span {
  font-weight: 500;
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1;
}

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

.badge-secondary {
  background-color: var(--secondary-light);
  color: var(--secondary-hover);
}

.badge-success {
  background-color: #D1FAE5;
  color: #065F46;
}

.badge-warning {
  background-color: #FEF3C7;
  color: #92400E;
}

.badge-error {
  background-color: #FEE2E2;
  color: #991B1B;
}

.badge-info {
  background-color: #DBEAFE;
  color: #1E40AF;
}

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

/* ============================================================
   Toast / Notification System
   ============================================================ */
.toast-container {
  position: fixed;
  top: calc(var(--header-height) + 16px);
  right: 20px;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 400px;
  width: calc(100% - 40px);
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  background-color: var(--white);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--gray-400);
  animation: toastSlideIn 0.3s ease forwards;
  position: relative;
  overflow: hidden;
}

.toast.toast-removing {
  animation: toastSlideOut 0.3s ease forwards;
}

.toast-success {
  border-left-color: var(--success);
}

.toast-success .toast-icon {
  color: var(--success);
}

.toast-error {
  border-left-color: var(--error);
}

.toast-error .toast-icon {
  color: var(--error);
}

.toast-info {
  border-left-color: var(--info);
}

.toast-info .toast-icon {
  color: var(--info);
}

.toast-warning {
  border-left-color: var(--warning);
}

.toast-warning .toast-icon {
  color: var(--warning);
}

.toast-icon {
  font-size: var(--font-size-xl);
  flex-shrink: 0;
  margin-top: 1px;
}

.toast-content {
  flex: 1;
}

.toast-message {
  font-size: var(--font-size-sm);
  color: var(--gray-700);
  line-height: 1.5;
  margin: 0;
}

.toast-close {
  position: absolute;
  top: 8px;
  right: 8px;
  background: none;
  border: none;
  font-size: 16px;
  color: var(--gray-400);
  cursor: pointer;
  padding: 2px;
  line-height: 1;
}

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

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

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

/* ============================================================
   Skeleton Loading
   ============================================================ */
.skeleton {
  background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

.skeleton-text {
  height: 14px;
  margin-bottom: var(--spacing-sm);
  border-radius: var(--radius-sm);
}

.skeleton-text:last-child {
  width: 60%;
}

.skeleton-title {
  height: 22px;
  width: 70%;
  margin-bottom: var(--spacing-md);
  border-radius: var(--radius-sm);
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-md);
}

.skeleton-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
}

.skeleton-button {
  height: 44px;
  width: 120px;
  border-radius: var(--radius-md);
}

.skeleton-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

/* ============================================================
   Scroll to Top Button
   ============================================================ */
#scrollToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background-color: var(--secondary-color);
  color: var(--white);
  border: none;
  border-radius: var(--radius-full);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  z-index: var(--z-sticky);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

#scrollToTop.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#scrollToTop:hover {
  background-color: var(--secondary-hover);
  transform: translateY(-3px);
}

/* ============================================================
   Sticky Header
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--white);
  z-index: var(--z-sticky);
  transition: box-shadow var(--transition-base), height var(--transition-base);
  display: flex;
  align-items: center;
}

.header.scrolled {
  box-shadow: var(--shadow-header);
}

@media (max-width: 992px) {
  .header {
    height: var(--header-height-mobile);
  }
}

/* ============================================================
   Links
   ============================================================ */
.link {
  color: var(--secondary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.link:hover {
  color: var(--secondary-hover);
  text-decoration: underline;
}

.link-primary {
  color: var(--primary-color);
}

.link-primary:hover {
  color: var(--primary-hover);
}

/* ============================================================
   Tables
   ============================================================ */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.table th,
.table td {
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.table th {
  background-color: var(--gray-50);
  font-weight: 600;
  color: var(--gray-700);
  white-space: nowrap;
}

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

.table-striped tbody tr:nth-child(even) {
  background-color: var(--gray-50);
}

.table-striped tbody tr:hover {
  background-color: var(--gray-100);
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ============================================================
   Pagination
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-2xl);
}

.pagination .page-item {
  display: inline-flex;
}

.pagination .page-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-700);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  background-color: var(--white);
}

.pagination .page-link:hover {
  background-color: var(--gray-50);
  border-color: var(--secondary-color);
  color: var(--secondary-color);
  text-decoration: none;
}

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

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

.pagination .page-prev,
.pagination .page-next {
  width: auto;
  padding: 0 var(--spacing-md);
  gap: var(--spacing-xs);
}

/* ============================================================
   Loading Spinner
   ============================================================ */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--secondary-color);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

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

.spinner-lg {
  width: 60px;
  height: 60px;
  border-width: 4px;
}

.spinner-container {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  min-height: 200px;
}

.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
}

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

/* ============================================================
   Modal
   ============================================================ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.modal-content {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.95);
  transition: transform var(--transition-base);
}

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

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

.modal-header h3 {
  margin: 0;
  font-size: var(--font-size-xl);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  font-size: 20px;
  color: var(--gray-400);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--gray-100);
  color: var(--gray-600);
}

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

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

.modal-lg .modal-content {
  max-width: 800px;
}

.modal-sm .modal-content {
  max-width: 400px;
}

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

.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  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-xs) 0;
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
}

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

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

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

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

/* ============================================================
   Alert
   ============================================================ */
.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.alert-success {
  background-color: #D1FAE5;
  border-color: #A7F3D0;
  color: #065F46;
}

.alert-error {
  background-color: #FEE2E2;
  border-color: #FECACA;
  color: #991B1B;
}

.alert-warning {
  background-color: #FEF3C7;
  border-color: #FDE68A;
  color: #92400E;
}

.alert-info {
  background-color: #DBEAFE;
  border-color: #BFDBFE;
  color: #1E40AF;
}

/* ============================================================
   Tabs
   ============================================================ */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--gray-200);
  margin-bottom: var(--spacing-xl);
  overflow-x: auto;
}

.tab-item {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-500);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  text-decoration: none;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.tab-item:hover {
  color: var(--gray-700);
}

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

.tab-content {
  display: none;
}

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

/* ============================================================
   Breadcrumb
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-sm);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--gray-500);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--secondary-color);
}

.breadcrumb .separator {
  color: var(--gray-300);
}

.breadcrumb .current {
  color: var(--gray-800);
  font-weight: 500;
}

/* ============================================================
   Empty State
   ============================================================ */
.empty-state {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
}

.empty-state-icon {
  font-size: 64px;
  color: var(--gray-300);
  margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
  color: var(--gray-700);
  margin-bottom: var(--spacing-sm);
}

.empty-state p {
  color: var(--gray-500);
  max-width: 400px;
  margin: 0 auto var(--spacing-lg);
}

/* ============================================================
   Chip / Tag
   ============================================================ */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 6px 12px;
  background-color: var(--gray-100);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--gray-700);
}

.chip-remove {
  cursor: pointer;
  font-size: 14px;
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

.chip-remove:hover {
  color: var(--error);
}

/* ============================================================
   Divider
   ============================================================ */
.divider {
  height: 1px;
  background-color: var(--gray-200);
  margin: var(--spacing-xl) 0;
  border: none;
}

.divider-text {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--gray-400);
  font-size: var(--font-size-sm);
}

.divider-text::before,
.divider-text::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--gray-200);
}

/* ============================================================
   Tooltip
   ============================================================ */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 12px;
  background-color: var(--gray-900);
  color: var(--white);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
}

[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}

/* ============================================================
   Responsive Grids
   ============================================================ */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 480px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Scrollbar Styling
   ============================================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

/* ============================================================
   Selection
   ============================================================ */
::selection {
  background-color: var(--secondary-light);
  color: var(--primary-color);
}

/* ============================================================
   Print Styles
   ============================================================ */
@media print {
  .header,
  .footer,
  #scrollToTop,
  .toast-container,
  .modal-overlay {
    display: none !important;
  }

  body {
    padding-top: 0;
  }
}