/* ===== GLOBAL STYLES ===== */
:root {
  --primary-color: #3498db;
  --secondary-color: #2980b9;
  --light-gray: #f8f9fa;
  --medium-gray: #e9ecef;
  --dark-gray: #6c757d;
  --text-color: #333333;
  --white: #ffffff;
  --black: #000000;
  --success: #28a745;
  --danger: #dc3545;
  --warning: #ffc107;
  --border-radius: 8px;
  --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Cairo', 'Tajawal', sans-serif;
  color: var(--text-color);
  background-color: var(--light-gray);
  line-height: 1.6;
  direction: rtl;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

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

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  border: none;
  font-size: 16px;
}

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

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

.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}

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

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

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 2.5rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 2.5rem; }

/* ===== HEADER ===== */
.header {
  background-color: var(--white);
  box-shadow: var(--box-shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  gap: 20px;
}

.nav-links li a {
  color: var(--text-color);
  font-weight: 500;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: var(--primary-color);
}

.auth-buttons {
  display: flex;
  gap: 6px;
}

.auth-buttons .btn {
  padding: 6px 14px;
  font-size: 14px;
  border-radius: 6px;
}

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

.user-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-color);
    font-size: 14px;
}

.user-dropdown-btn img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.user-dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background-color: #fff;
    min-width: 200px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-radius: 8px;
    z-index: 1000;
    margin-top: 5px;
}

.user-dropdown-content a {
    color: #333;
    padding: 12px 16px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.3s;
}

.user-dropdown-content a:hover {
    background-color: #f5f5f5;
}

.user-dropdown-content.show {
    display: block;
}

.user-dropdown-content a i {
    width: 20px;
    text-align: center;
}

.user-dropdown-content a.logout {
    color: #e74c3c;
}

.user-dropdown-content a.logout i {
    color: #e74c3c;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-color);
}

/* ===== FORMS ===== */
.form-container {
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 30px;
  margin: 30px 0;
}

.form-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
}

.form-subtitle {
  font-size: 16px;
  color: var(--dark-gray);
  margin-bottom: 30px;
  text-align: center;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--medium-gray);
  border-radius: var(--border-radius);
  font-size: 16px;
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

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

.form-check {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
}

.form-check-input {
  width: 18px;
  height: 18px;
}

.form-check-label {
  font-size: 14px;
}

.form-submit {
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: var(--border-radius);
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
}

.form-submit:hover {
  background-color: var(--secondary-color);
}

.form-link {
  display: block;
  text-align: center;
  margin-top: 15px;
  font-size: 14px;
}

.form-divider {
  display: flex;
  align-items: center;
  margin: 20px 0;
}

.form-divider::before,
.form-divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid var(--medium-gray);
}

.form-divider span {
  padding: 0 10px;
  color: var(--dark-gray);
  font-size: 14px;
}

/* ===== SELL CAR FORM ===== */
.sell-car-container {
  max-width: 900px;
  margin: 30px auto;
}

.sell-car-header {
  text-align: center;
  margin-bottom: 30px;
}

.sell-car-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 10px;
}

.sell-car-subtitle {
  font-size: 16px;
  color: var(--dark-gray);
}

.car-form-section {
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 30px;
  margin-bottom: 30px;
}

.section-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-color);
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}

.form-col {
  flex: 1;
  padding: 0 10px;
  min-width: 250px;
  margin-bottom: 20px;
}

.input-group {
  position: relative;
  margin-bottom: 20px;
}

.input-group-icon {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--dark-gray);
}

.input-group .form-input,
.input-group .form-select {
  padding-left: 40px;
}

.form-field-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.form-field-label i {
  color: var(--primary-color);
  margin-left: 5px;
}

.upload-container {
  border: 2px dashed var(--medium-gray);
  border-radius: var(--border-radius);
  padding: 30px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.upload-container:hover {
  border-color: var(--primary-color);
}

.upload-icon {
  font-size: 48px;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.upload-text {
  font-size: 16px;
  color: var(--dark-gray);
  margin-bottom: 10px;
}

.upload-hint {
  font-size: 14px;
  color: var(--dark-gray);
}

.preview-images {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.preview-image {
  width: 100px;
  height: 100px;
  border-radius: var(--border-radius);
  object-fit: cover;
  position: relative;
}

.preview-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--border-radius);
}

.preview-image .remove-image {
  position: absolute;
  top: -8px;
  right: -8px;
  background-color: var(--danger);
  color: var(--white);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 12px;
}

.form-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 30px;
}

/* ===== AUTH FORMS ===== */
.auth-container {
  max-width: 500px;
  margin: 50px auto;
}

.auth-tabs {
  display: flex;
  margin-bottom: 20px;
}

.auth-tab {
  flex: 1;
  text-align: center;
  padding: 15px;
  background-color: var(--light-gray);
  cursor: pointer;
  transition: var(--transition);
}

.auth-tab:first-child {
  border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.auth-tab:last-child {
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.auth-tab.active {
  background-color: var(--primary-color);
  color: var(--white);
}

.auth-form {
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 30px;
}

.social-login {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.social-login-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px;
  border-radius: var(--border-radius);
  background-color: var(--white);
  border: 1px solid var(--medium-gray);
  cursor: pointer;
  transition: var(--transition);
}

.social-login-btn:hover {
  background-color: var(--light-gray);
}

.social-login-btn i {
  font-size: 18px;
}

.social-login-btn.facebook i {
  color: #3b5998;
}

.social-login-btn.google i {
  color: #db4437;
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 50px 0 20px;
  margin-top: 50px;
}

.footer-container {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  margin-bottom: 30px;
}

.footer-column {
  flex: 1;
  min-width: 250px;
}

.footer-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--white);
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links li a {
  color: var(--white);
}

.footer-links li a:hover {
  color: var(--secondary-color);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
  color: var(--white);
}

.footer-contact li i {
  color: var(--primary-color);
  font-size: 18px;
}

.footer-social {
  display: flex;
  gap: 15px;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--white);
  color: var(--primary-color);
  transition: var(--transition);
}

.footer-social a:hover {
  background-color: var(--secondary-color);
  color: var(--white);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.2);
  color: var(--white);
  font-size: 14px;
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 992px) {
  .nav-links {
    gap: 15px;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }

  .mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.25);
    z-index: 998;
  }
  .mobile-menu-overlay.active {
    display: block;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 70px;
    left: 10px;
    right: 10px;
    background-color: var(--white);
    padding: 20px;
    box-shadow: var(--box-shadow);
    flex-direction: column;
    align-items: center;
    z-index: 999;
    border-radius: 16px;
    max-height: 60vh;
    overflow-y: auto;
  }

  .nav-links.active {
    display: flex;
  }

  .auth-buttons {
    margin-top: 0 !important;
    padding-top: 0 !important;
  }

  .user-dropdown {
    width: 100%;
    text-align: center;
  }

  .user-dropdown-btn {
    width: 100%;
    justify-content: center;
  }

  .user-dropdown-content {
    position: static;
    width: 100%;
    margin-top: 10px;
    box-shadow: none;
  }

  .nav-links li {
    margin: 0;
    padding: 0;
  }

  .nav-links li:not(:last-child) {
    margin-bottom: 12px;
  }

  .nav-links li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .hero-section,
  .search-form,
  .featured-section,
  .latest-cars,
  .categories-section {
    position: relative;
    z-index: 1;
  }
}

@media (max-width: 576px) {
  .auth-tabs {
    flex-direction: column;
  }
  
  .auth-tab:first-child {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
  }
  
  .auth-tab:last-child {
    border-radius: 0 0 var(--border-radius) var(--border-radius);
  }
  
  .social-login {
    flex-direction: column;
  }
}

/* Message Notifications */
.toast {
    position: fixed;
    top: 30px;
    right: 30px;
    z-index: 9999;
    min-width: 250px;
    max-width: 350px;
    padding: 16px 24px;
    border-radius: 8px;
    font-size: 16px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    background: #fff;
    color: #333;
    opacity: 0.98;
    transition: opacity 0.3s, top 0.3s;
    display: none;
}
.toast.success { border-right: 5px solid #28a745; }
.toast.error { border-right: 5px solid #e74c3c; }
.toast.show { display: block; }

/* ===== CAR SEARCH CARDS ===== */
.cars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.car-card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.car-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.car-image {
  height: 200px;
  overflow: hidden;
}

.car-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.car-content {
  padding: 20px;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
}

.car-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-color);
}

.car-price {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.car-details {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 15px;
}

.car-detail {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 14px;
  color: var(--dark-gray);
}

.car-detail i {
  color: var(--primary-color);
}

.car-location {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 14px;
  color: var(--dark-gray);
  margin-bottom: 15px;
}

.car-location i {
  color: var(--primary-color);
}

.car-description {
  font-size: 14px;
  color: var(--dark-gray);
  margin-bottom: 15px;
  flex: 1 1 auto;
}

.car-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.car-date {
  font-size: 13px;
  color: var(--dark-gray);
  display: flex;
  align-items: center;
  gap: 5px;
}

@media (max-width: 768px) {
  .cars-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .car-image {
    height: 160px;
  }
}

/* Loading Overlay */
#loadingOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-spinner {
    text-align: center;
}

.loading-spinner .spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

.loading-spinner p {
    color: #333;
    font-size: 16px;
    margin: 0;
}

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