/* Menu Styles */
:root {
  --header-bg: rgba(255, 255, 255, 0.9);
  --text-color: #333;
  --primary-color: #7f5af0;
  --primary-color-rgb: 127, 90, 240;
  --secondary-color: #2cb67d;
  --transition: all 0.3s ease;
}

[data-theme="dark"] {
  --header-bg: rgba(18, 18, 18, 0.9);
  --text-color: #ececec;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  margin: 20px 0;
  margin-top: 60px; /* Delete after remove the top banner*/
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
  position: relative;
  z-index: 100;
}

.logo {
  flex: 0 0 auto;
}

.logo h1 {
  font-size: 2.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0;
}

.logo h1 a {
  text-decoration: none;
}

/* Navigation */
nav {
  display: flex;
  align-items: center;
}

nav ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  padding: 0.8rem 1.2rem;
  border-radius: 50px;
  transition: var(--transition);
  position: relative;
  display: block;
}

nav a:hover, nav a.active {
  color: var(--primary-color);
  background: rgba(var(--primary-color-rgb), 0.1);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 10;
}

.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--text-color);
  border-radius: 3px;
  transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Dropdown Menu Styles */
nav .dropdown {
  position: relative;
}

nav .dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 0.8rem 1.2rem;
}

nav .dropdown-toggle i {
  font-size: 0.8rem;
  transition: transform 0.3s ease;
  position: relative;
  margin-left: 8px;
}

nav .dropdown:hover .dropdown-toggle i {
  transform: rotate(180deg);
}

nav .dropdown-menu {
  position: absolute;
  background: var(--header-bg);
  backdrop-filter: blur(15px);
  border-radius: 15px;
  padding: 0.8rem 0;
  min-width: 220px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: all 0.3s ease;
  z-index: 150;
  border: 1px solid rgba(255, 255, 255, 0.2);
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(15px);
  overflow: hidden;
}

nav .dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

nav .dropdown-menu::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 16px;
  height: 16px;
  background: var(--header-bg);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  z-index: -1;
}

nav .dropdown-menu a {
  display: block;
  padding: 0.8rem 1.2rem;
  color: var(--text-color);
  text-decoration: none;
  transition: all 0.2s ease;
  font-size: 0.95rem;
  border-radius: 0;
  text-align: left;
  position: relative;
  overflow: visible;
}

nav .dropdown-menu a::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  transform: translateX(-4px);
  transition: transform 0.2s ease;
}

nav .dropdown-menu a:hover {
  background-color: rgba(var(--primary-color-rgb), 0.1);
  color: var(--primary-color);
  padding-left: 1.5rem;
}

nav .dropdown-menu a:hover::before {
  transform: translateX(0);
}

/* Responsive styles */
@media (max-width: 768px) {
  header {
    padding: 15px;
    flex-wrap: wrap;
    position: relative;
    margin: 10px;
  }

  .logo h1 {
    font-size: 1.8rem;
  }

  .mobile-menu-btn {
    display: flex;
    position: relative;
    top: auto;
    right: auto;
    z-index: 102;
    width: 28px;
    height: 22px;
  }

  .mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-color);
    border-radius: 3px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
    background: var(--primary-color);
  }

  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
    background: var(--primary-color);
  }

  nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(250, 250, 255, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 101;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-100%);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  [data-theme="dark"] nav {
    background: rgba(18, 18, 18, 0.95);
  }

  nav.active {
    visibility: visible;
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
  }

  nav ul {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    width: 100%;
    padding: 2rem 0;
  }

  nav li {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    transition-delay: 0.1s;
  }

  nav.active li {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.2s;
  }

  nav.active li:nth-child(2) {
    transition-delay: 0.3s;
  }

  nav.active li:nth-child(3) {
    transition-delay: 0.4s;
  }

  nav a {
    font-size: 1.6rem;
    padding: 1rem 2rem;
    text-align: center;
    border-radius: 12px;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }

  [data-theme="dark"] nav a {
    background: rgba(40, 40, 40, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  nav a:hover, nav a.active {
    background: rgba(var(--primary-color-rgb), 0.1);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
  }

  nav .dropdown {
    width: 100%;
    max-width: 300px;
  }

  nav .dropdown-toggle {
    text-align: center;
    justify-content: center;
    width: 100%;
    display: flex;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-size: 1.6rem;
    position: relative;
    background: transparent;
  }

  [data-theme="dark"] nav .dropdown-toggle {
    background: rgba(40, 40, 40, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  nav .dropdown-toggle.active {
    background: rgba(var(--primary-color-rgb), 0.1);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
  }

  nav .dropdown-toggle i {
    position: relative;
    right: auto;
    margin-left: 8px;
  }

  nav .dropdown-toggle.active i {
    transform: rotate(180deg);
  }

  nav .dropdown-menu {
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    margin-top: 10px;
    opacity: 0;
    visibility: hidden;
    height: 0;
    padding: 0;
    overflow: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  [data-theme="dark"] nav .dropdown-menu {
    background: rgba(30, 30, 30, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.05);
  }

  nav .dropdown-menu::before {
    display: none;
  }

  nav .dropdown:hover .dropdown-menu {
    transform: none;
  }

  nav .dropdown-toggle.active + .dropdown-menu {
    opacity: 1;
    visibility: visible;
    height: auto;
    padding: 15px;
  }

  nav .dropdown-menu a {
    font-size: 1.1rem;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    max-width: none;
  }

  [data-theme="dark"] nav .dropdown-menu a {
    background: rgba(50, 50, 50, 0.8);
  }

  nav .dropdown-menu a:last-child {
    margin-bottom: 0;
  }

  nav .dropdown-menu a:hover {
    background: rgba(var(--primary-color-rgb), 0.15);
    padding-left: 12px;
    transform: translateY(-2px);
  }

  [data-theme="dark"] nav .dropdown-menu a:hover {
    background: rgba(var(--primary-color-rgb), 0.2);
  }
}

.dropdown-icon {
  display: inline-block;
  transition: transform 0.3s ease;
  margin-left: 8px !important;
}

@media (max-width: 480px) {
  header {
    padding: 12px;
    margin: 8px;
  }

  .logo h1 {
    font-size: 1.4rem;
  }

  .mobile-menu-btn {
    width: 24px;
    height: 18px;
  }

  .mobile-menu-btn span {
    height: 2px;
  }

  .mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  nav {
    padding: 1rem;
  }

  nav ul {
    gap: 1rem;
  }

  nav a, nav .dropdown-toggle {
    font-size: 1.3rem;
    padding: 0.8rem 1.5rem;
  }

  nav .dropdown-menu {
    margin-top: 8px;
  }

  nav .dropdown-menu a {
    font-size: 1rem;
    padding: 10px;
  }

  nav.active li:nth-child(2) {
    transition-delay: 0.25s;
  }

  nav.active li:nth-child(3) {
    transition-delay: 0.3s;
  }
}

/* Menu open state for body */
body.menu-open {
  overflow: hidden;
}

body.menu-open::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(5px);
  z-index: 90;
  animation: fadeIn 0.3s ease forwards;
}

[data-theme="dark"] body.menu-open::after {
  background: rgba(0, 0, 0, 0.5);
}

@media (min-width: 769px) {
  body.menu-open::after {
    display: none;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}