/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

/* Common Utility Classes with zh_ prefix */
.zh_flex {
  display: flex;
}

.zh_flex_wrap {
  flex-wrap: wrap;
}

.zh_flex_center {
  justify-content: center;
  align-items: center;
}

.zh_flex_between {
  justify-content: space-between;
}

.zh_flex_around {
  justify-content: space-around;
}

.zh_text_center {
  text-align: center;
}

.zh_text_left {
  text-align: left;
}

.zh_text_right {
  text-align: right;
}

.zh_mt_10 {
  margin-top: 10px;
}

.zh_mt_20 {
  margin-top: 20px;
}

.zh_mt_30 {
  margin-top: 30px;
}

.zh_mb_10 {
  margin-bottom: 10px;
}

.zh_mb_20 {
  margin-bottom: 20px;
}

.zh_mb_30 {
  margin-bottom: 30px;
}

.zh_p_10 {
  padding: 10px;
}

.zh_p_20 {
  padding: 20px;
}

.zh_p_30 {
  padding: 30px;
}

/* Container */
.zh_container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header Styles */
.zh_header {
  position: relative;
  width: 100%;
  background: #ffffff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  z-index: 1000;
}

.zh_top_main {
  width: 100%;
}

.zh_top_fixed {
  position: fixed;
  top: 0;
  width: 100%;
  background: #ffffff;
  transition: all 0.3s ease;
}

.zh_top_box {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.zh_nav_container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.zh_nav_left {
  display: flex;
  align-items: center;
  gap: 40px;
}

.zh_logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.zh_logo img {
  height: 45px;
  width: auto;
}

.zh_main_menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 30px;
}

.zh_menu_item {
  position: relative;
}

.zh_menu_item a {
  color: #333;
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  padding: 8px 0;
  transition: color 0.3s ease;
  position: relative;
}

.zh_menu_item a:hover {
  color: #007bff;
}

.zh_menu_item a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: #007bff;
  transition: width 0.3s ease;
}

.zh_menu_item a:hover::after {
  width: 100%;
}

.zh_nav_right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.zh_vk_section {
  display: flex;
  align-items: center;
}

.zh_vk_link img {
  height: 35px;
  width: auto;
}

.zh_action_btns {
  display: flex;
  align-items: center;
  gap: 15px;
}

.zh_btn {
  padding: 8px 20px;
  border-radius: 25px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  display: inline-block;
}

.zh_btn_primary {
  background: #007bff;
  color: white;
}

.zh_btn_primary:hover {
  background: #0056b3;
  transform: translateY(-1px);
  color: white;
}

.zh_btn_outline {
  background: transparent;
  color: #007bff;
  border: 1px solid #007bff;
}

.zh_btn_outline:hover {
  background: #007bff;
  color: white;
}

.zh_btn_success {
  background: #28a745;
  color: white;
}

.zh_btn_success:hover {
  background: #218838;
  color: white;
}

.zh_btn_secondary {
  background: #6c757d;
  color: white;
}

.zh_btn_secondary:hover {
  background: #5a6268;
  color: white;
}

/* Hero Section */
.zh_hero_section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.zh_hero_bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  
}

.zh_hero_content {
  text-align: center;
  margin-bottom: 50px;
}

.zh_hero_title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.zh_hero_subtitle {
  font-size: 20px;
  margin-bottom: 40px;
  opacity: 0.9;
}

.zh_search_container {
  background: rgba(255,255,255,0.95);
  border-radius: 15px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  margin-bottom: 40px;
}

.zh_search_tab {
  text-align: center;
  margin-bottom: 30px;
}

.zh_search_tab_btn {
  background: #007bff;
  color: white;
  border: none;
  padding: 12px 30px;
  border-radius: 25px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}

.zh_search_form {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.zh_search_input_group {
  flex: 1;
  min-width: 300px;
  max-width: 500px;
}

.zh_search_input {
  width: 100%;
  padding: 15px 20px;
  border: 2px solid #e0e0e0;
  border-radius: 50px;
  font-size: 16px;
  outline: none;
  transition: border-color 0.3s ease;
}

.zh_search_input:focus {
  border-color: #007bff;
}

.zh_search_btn {
  background: #007bff;
  color: white;
  border: none;
  padding: 15px 30px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.zh_search_btn:hover {
  background: #0056b3;
  transform: translateY(-2px);
}

.zh_action_buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.zh_action_btn {
  padding: 12px 25px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
}

.zh_action_btn_primary {
  background: #28a745;
  color: white;
}

.zh_action_btn_secondary {
  background: #6c757d;
  color: white;
}

.zh_action_btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
  text-decoration: none;
}

.zh_hot_tags {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  color: #666;
  flex-wrap: wrap;
}

.zh_hot_tag {
  color: #007bff;
  text-decoration: none;
  padding: 5px 15px;
  border: 1px solid #007bff;
  border-radius: 20px;
  transition: all 0.3s ease;
}

.zh_hot_tag:hover {
  background: #007bff;
  color: white;
  text-decoration: none;
}

/* Features Grid */
.zh_features_grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.zh_feature_card {
  background: rgba(255,255,255,0.95);
  border-radius: 15px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.zh_feature_card:hover {
  transform: translateY(-5px);
}

.zh_feature_icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: #007bff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.zh_feature_icon img {
  width: 50px;
  height: 50px;
}

.zh_feature_title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  color: #333;
}

.zh_feature_desc {
  color: #666;
  margin-bottom: 20px;
  line-height: 1.6;
}

.zh_feature_link {
  color: #007bff;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.zh_feature_link:hover {
  color: #0056b3;
  text-decoration: none;
}

/* Section Styles */
.zh_section {
  padding: 80px 0;
}

.zh_section_header {
  text-align: center;
  margin-bottom: 60px;
}

.zh_section_title {
  font-size: 36px;
  font-weight: 700;
  color: #333;
  margin-bottom: 15px;
}

.zh_section_subtitle {
  font-size: 18px;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* Services Grid */
.zh_services_grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 40px;
}

.zh_service_card {
  background: white;
  border-radius: 15px;
  padding: 40px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.zh_service_card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.zh_service_header {
  margin-bottom: 30px;
}

.zh_service_title {
  font-size: 24px;
  font-weight: 700;
  color: #333;
  margin-bottom: 10px;
}

.zh_service_subtitle {
  color: #666;
  font-style: italic;
}

.zh_service_list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.zh_service_item {
  background: #f8f9fa;
  padding: 10px 15px;
  border-radius: 8px;
  border-left: 3px solid #007bff;
  transition: all 0.3s ease;
}

.zh_service_item:hover {
  background: #e9ecef;
  border-left-color: #0056b3;
}

.zh_service_item a {
  color: #333;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.zh_service_item a:hover {
  color: #007bff;
  text-decoration: none;
}

/* Tasks Grid */
.zh_tasks_grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  margin-bottom: 40px;
}

.zh_task_card {
  background: white;
  border-radius: 15px;
  padding: 25px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  text-decoration: none;
  display: block;
}

.zh_task_card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.15);
  text-decoration: none;
}

.zh_task_title {
  font-size: 18px;
  font-weight: 600;
  color: #333;
  margin-bottom: 15px;
  line-height: 1.4;
}

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

.zh_task_price_value {
  font-size: 20px;
  font-weight: 700;
  color: #28a745;
}

.zh_task_type {
  background: #007bff;
  color: white;
  padding: 3px 10px;
  border-radius: 15px;
  font-size: 12px;
}

.zh_task_company {
  color: #666;
  font-size: 14px;
  line-height: 1.4;
}

.zh_more_btn {
  text-align: center;
}

.zh_more_link {
  display: inline-block;
  background: #007bff;
  color: white;
  padding: 15px 40px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.zh_more_link:hover {
  background: #0056b3;
  transform: translateY(-2px);
  color: white;
  text-decoration: none;
}

/* Footer Styles */
.zh_footer {
  background: #2c3e50;
  color: #ecf0f1;
  padding: 40px 0 20px;
  margin-top: 60px;
}

.zh_footer_container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.zh_footer_content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 30px;
}

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

.zh_footer_title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
  color: #3498db;
  border-bottom: 2px solid #3498db;
  padding-bottom: 10px;
}

.zh_footer_text {
  line-height: 1.8;
  margin-bottom: 15px;
  color: #bdc3c7;
}

.zh_contact_info {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.zh_contact_item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #bdc3c7;
}

.zh_contact_icon {
  width: 20px;
  height: 20px;
  background: #3498db;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: white;
}

.zh_footer_bottom {
  border-top: 1px solid #34495e;
  padding-top: 20px;
  text-align: center;
}

.zh_footer_links {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 15px;
  flex-wrap: wrap;
}

.zh_footer_link {
  color: #bdc3c7;
  text-decoration: none;
  transition: color 0.3s ease;
}

.zh_footer_link:hover {
  color: #3498db;
  text-decoration: none;
}

.zh_copyright {
  color: #95a5a6;
  font-size: 14px;
  line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 992px) {
  .zh_container {
    padding: 0 15px;
  }
  
  .zh_nav_container {
    height: 60px;
  }
  
  .zh_nav_left {
    gap: 20px;
  }
  
  .zh_main_menu {
    gap: 20px;
  }
  
  .zh_hero_title {
    font-size: 40px;
  }
  
  .zh_section_title {
    font-size: 32px;
  }
  
  .zh_services_grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .zh_nav_container {
    height: 60px;
  }
  
  .zh_main_menu {
    display: none;
  }
  
  .zh_action_btns {
    gap: 10px;
  }
  
  .zh_btn {
    padding: 6px 15px;
    font-size: 13px;
  }
  
  .zh_hero_title {
    font-size: 32px;
  }
  
  .zh_hero_subtitle {
    font-size: 18px;
  }
  
  .zh_search_form {
    flex-direction: column;
  }
  
  .zh_search_input_group {
    min-width: auto;
    width: 100%;
  }
  
  .zh_action_buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .zh_section_title {
    font-size: 28px;
  }
  
  .zh_section {
    padding: 60px 0;
  }
  
  .zh_features_grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .zh_services_grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .zh_tasks_grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
  }
  
  .zh_footer_content {
    flex-direction: column;
    gap: 30px;
  }
  
  .zh_footer_section {
    min-width: auto;
  }
  
  .zh_footer_links {
    flex-direction: column;
    gap: 15px;
  }
}

@media (max-width: 480px) {
  .zh_hero_title {
    font-size: 28px;
  }
  
  .zh_hero_subtitle {
    font-size: 16px;
  }
  
  .zh_search_container {
    padding: 20px;
  }
  
  .zh_section_title {
    font-size: 24px;
  }
  
  .zh_feature_card {
    padding: 20px;
  }
  
  .zh_service_card {
    padding: 30px 20px;
  }
  
  .zh_task_card {
    padding: 20px;
  }
  
  .zh_tasks_grid {
    grid-template-columns: 1fr;
  }
}

/* Animation Classes */
.zh_fade_in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.zh_fade_in.zh_visible {
  opacity: 1;
  transform: translateY(0);
}

.zh_scale_hover {
  transition: transform 0.3s ease;
}

.zh_scale_hover:hover {
  transform: scale(1.05);
}

/* Additional Utility Classes */
.zh_shadow_sm {
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.zh_shadow_md {
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.zh_shadow_lg {
  box-shadow: 0 10px 15px rgba(0,0,0,0.1);
}

.zh_border_radius_sm {
  border-radius: 4px;
}

.zh_border_radius_md {
  border-radius: 8px;
}

.zh_border_radius_lg {
  border-radius: 15px;
}

.zh_border_radius_full {
  border-radius: 50px;
}

/* Color Classes */
.zh_text_primary {
  color: #007bff;
}

.zh_text_success {
  color: #28a745;
}

.zh_text_warning {
  color: #ffc107;
}

.zh_text_danger {
  color: #dc3545;
}

.zh_text_muted {
  color: #6c757d;
}

.zh_bg_primary {
  background-color: #007bff;
}

.zh_bg_success {
  background-color: #28a745;
}

.zh_bg_warning {
  background-color: #ffc107;
}

.zh_bg_danger {
  background-color: #dc3545;
}

.zh_bg_light {
  background-color: #f8f9fa;
}

.zh_bg_dark {
  background-color: #343a40;
}