/* Navbar Styles */
:root {
  --header-height: 80px;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 5%;
  max-width: 1400px;
  margin: 0 auto;
  height: var(--header-height);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  margin-left: auto;
}

.nav-links a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
  padding: 0.5rem 0;
  text-decoration: none;
}

.nav-links a i {
  font-size: 1.2rem;
}

.nav-links a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
}

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

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

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-decoration: none;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.logo:hover {
  color: var(--accent-secondary);
  transform: scale(1.05);
}

.logo span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.3s ease;
}

.mobile-menu-btn:hover {
  color: var(--accent-secondary);
}

/* Mobile Menu */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--bg-secondary);
    padding: 1rem;
    flex-direction: column;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
  }

  .nav-links.active {
    transform: translateY(0);
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }

  .search-bar {
    display: none;
  }

  nav {
    padding: 1rem;
  }
}

/* Sign in Button */
.sign-in-btn {
  width: 120px; /* Increased width */
  padding: 0.9rem 1.7rem;
  background: transparent;
  border: 2px solid var(--input-border);
  color: var(--text-primary);
  margin-left: 1rem; /* Less margin since button is wider */
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.sign-in-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary); /* Theme gradient for hover */
  transition: transform 0.3s ease;
  z-index: -1; /* Ensure text is above hover */
}

.sign-in-btn:hover {
  color: var(--text-primary); /* Text color on hover */
  border-color: var(--accent-secondary);
  box-shadow: none; /* Explicitly remove box-shadow */
}

.sign-in-btn:hover::before {
  transform: translateX(100%);
}

.sign-in-btn i {
  position: relative;
  z-index: 1;
  transition: transform 0.3s ease;
}

.sign-in-btn:hover i {
  transform: translateX(3px);
}

/* Profile Photo */
.profile-link {
  display: flex;
  align-items: center;
  margin: 0 0.5rem;
  margin-left: 5.5rem; /* Same spacing as sign-in button */
}

.nav-profile-photo {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--accent-primary);
  transition: all 0.3s ease;
}

.nav-profile-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nav-profile-photo:hover {
  transform: scale(1.05);
  box-shadow: 0 0 10px rgba(64, 224, 208, 0.5);
}


/* Responsive Styles */
@media (max-width: 1024px) {
  nav {
    padding: 1rem 2rem;
  }

  .search-bar {
    max-width: 300px;
    margin: 0 1rem;
  }
}

/* Search Overlay */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 100px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-overlay-content {
  width: 90%;
  max-width: 600px;
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 2rem;
  position: relative;
  transform: translateY(-20px);
  transition: transform 0.3s ease;
}

.search-overlay.active .search-overlay-content {
  transform: translateY(0);
}

.close-search {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.3s ease;
}

.close-search:hover {
  color: var(--accent-secondary);
}