/* Root colors (existing scheme) */
:root {
  --dark: #2c3e50;
  --primary: #1abc9c;
  --white: #ffffff;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
}

/* Navbar */
.navbar {
  background: rgba(44, 62, 80);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

/* Container */
.nav-container {
  max-width: 1200px;
  margin: auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.logo {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--white);
}
.logo span {
  color: var(--primary);
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  position: relative;
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

/* Hover underline animation */
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

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

/* Dropdown support for nav items */
.dropdown {
  position: relative;
}

/* Keep the toggle inline with the caret to its right */
.dropdown > .dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  cursor: pointer;
}

/* Use an inline caret element for reliable positioning */
.dropdown > .dropdown-toggle::after {
  content: none;
}

.dropdown > .dropdown-toggle .caret {
  display: inline-block;
  margin-left: 6px;
  font-size: 0.88rem;
  opacity: 0.95;
  transition: transform 0.18s ease;
  line-height: 1;
}

.dropdown.open > .dropdown-toggle .caret {
  transform: rotate(180deg);
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 120%;
  left: 0;
  min-width: 200px;
  background: var(--dark);
  border-radius: 8px;
  padding: 0.4rem 0;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  z-index: 1100;
}

.dropdown-menu li {
  list-style: none;
}

.dropdown-menu a {
  display: block;
  padding: 0.6rem 1rem;
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
}

.dropdown-menu a:hover {
  background: rgba(255,255,255,0.04);
  color: var(--primary);
}

/* Show dropdown when parent is open */
.dropdown.open > .dropdown-menu {
  display: block;
}

/* Hover and keyboard focus behavior (desktop) */
@media (hover: hover) and (min-width: 769px) {
  .dropdown:hover > .dropdown-menu,
  .dropdown:focus-within > .dropdown-menu {
    display: block;
  }

  .dropdown:hover > .dropdown-toggle .caret,
  .dropdown:focus-within > .dropdown-toggle .caret {
    transform: rotate(180deg);
  }
}

/* Mobile: make dropdowns stack inside drawer and keep caret on the right */
@media (max-width: 768px) {
  .dropdown-menu {
    position: static;
    top: auto;
    left: auto;
    width: 100%;
    padding-left: 0.6rem;
  }

  .dropdown > .dropdown-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding-right: 0.5rem;
  }

  .dropdown > .dropdown-toggle .caret {
    transform: rotate(0deg);
  }

  .dropdown.open > .dropdown-toggle .caret {
    transform: rotate(180deg);
  }
}

/* CTA Button */
.nav-btn {
  padding: 0.5rem 1.1rem;
  border-radius: 8px;
  background: var(--primary);
  color: var(--white) !important;
  font-weight: 600;
}

.nav-btn:hover {
  background: #17a589;
}

/* Theme Toggle */
.theme-toggle {
  cursor: pointer;
  font-size: 1.2rem;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--white);
  border-radius: 2px;
}

.hamburger span {
  transition: all 0.4s ease;
}

/* When active */
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}


@media (max-width: 768px) {

  .hamburger {
    display: flex;
    z-index: 1100;
  }

  /* Left Drawer Menu */
  .nav-links {
    position: fixed;
    top: 0;
    left: -100%;
    height: 100vh;
    width: 40%;
    background: var(--dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem 2rem;
    gap: 1.5rem;
    transition: left 0.4s ease;
    box-shadow: 10px 0 30px rgba(0,0,0,0.3);
    z-index: -100;
  }

  .nav-links.show {
    left: 0;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    font-size: 1.1rem;
  }
}

/* Dark Mode Toggle (moved from index.html) */
#dark-mode-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0.25rem 0.4rem;
  transition: all 0.3s ease;
  position: static; /* keep it inline with other nav items */
  color: var(--white);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

#dark-mode-toggle:hover {
  transform: scale(1.1) rotate(15deg);
}

@media (max-width: 768px) {
  /* Mobile override for toggle */
  #dark-mode-toggle {
    position: static;
    top: auto;
    right: auto;
    color: var(--white);
  }
}

/* Legacy menu-toggle support (moved from index.html) */
.menu-toggle .bar {
  width: 25px;
  height: 3px;
  background: var(--white);
  margin: 4px 0;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-origin: center;
}

.menu-toggle.active .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active .bar:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.menu-toggle.active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}