:root {
  --color-primary: #007aff;           
  --color-white: #ffffff;             
  --color-surface: #f2f2f7;           
  --color-black: #1c1c1e;             
  --color-gray: #8e8e93;              
  --color-border: #adadae;            
}

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

body {
  font-family:"Segoe UI";
  background-color: var(--color-white);
  color: var(--color-black);
}

.menu_bar {
  background-color: var(--color-white);
  height: 80px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0 10px;
  border-bottom: 1px solid var(--color-border);
}

.menu_bar ul {
  list-style: none;
  display: flex;
}

.menu_bar ul li {
  padding: 10px 30px;
  position: relative;
}

.menu_bar ul li a {
  color: var(--color-black);
  text-decoration: none;
  font-size: 20px;
  transition: color 0.3s;
  display: block;
  width: 100%;
  height: 100%;
  font-weight: 500;
}

.menu_bar ul li a:hover {
  color: var(--color-primary);
}

.dropdown_menu {
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  background-color: var(--color-surface);
  min-width: 200px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
  z-index: 1000;
  border: 1px solid var(--color-border);
  border-radius: 10px;
}

.dropdown_menu ul {
  display: block;
  flex-direction: column;
}

.dropdown_menu ul li {
  padding: 15px 20px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.dropdown_menu ul li:last-child {
  border-bottom: none;
}

.dropdown_menu ul li a {
  font-size: 18px;
  color: var(--color-black);
  display: block;
  width: 100%;
  height: 100%;
}

.dropdown_menu ul li a:hover {
  color: var(--color-primary);
}


.menu_bar ul li:hover .dropdown_menu {
  display: block;
}

.fas {
  float: right;
  margin-left: 10px;
  padding-top: 3px;
  color: var(--color-gray);
}

.dropdown_menu_right {
  display: none;
  position: absolute;
  top: 0;
  left: 100%;
  background-color: var(--color-surface);
  min-width: 200px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
  z-index: 1001;
  border: 1px solid var(--color-border);
  border-radius: 10px;
}

.dropdown_menu_right ul {
  display: block;
  flex-direction: column;
}

.dropdown_menu_right ul li {
  padding: 15px 20px;
  border-bottom: 1px solid var(--color-border);
}

.dropdown_menu_right ul li:last-child {
  border-bottom: none;
}

.dropdown_menu_right ul li a {
  font-size: 18px;
  color: var(--color-black);
  display: block;
  width: 100%;
  height: 100%;
}

.dropdown_menu_right ul li a:hover {
  color: var(--color-primary);
}

.dropdown_menu ul li:hover .dropdown_menu_right {
  display: block;
}