/* ===================================
   Navigation Styles
   =================================== */

/* Search Overlay */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 1002;
    display: none; /* Hidden by default */
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.search-overlay.is-active {
    display: flex;
    opacity: 1;
}

.search-overlay__inner {
    width: 80%;
    max-width: 800px;
    position: relative;
}

.search-overlay__close {
    position: absolute;
    top: -40px; /* Position above the search input */
    right: 0;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
}

.search-form {
    display: flex;
    width: 100%;
    border-bottom: 2px solid white;
    padding-bottom: var(--spacing-small);
}

.search-form__input {
    flex-grow: 1;
    background: transparent;
    border: none;
    outline: none;
    color: white;
    font-size: 2rem;
    padding: 0;
}

.search-form__input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.search-form__submit {
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
}

/* Off-Canvas Navigation */
.nav-off-canvas {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 1001;
    transition: right 0.3s ease;
    overflow-y: auto;
    display: flex;
    justify-content: flex-end;
}

.nav-off-canvas.is-active {
    right: 0;
}

.nav-off-canvas__inner {
    width: 350px;
    background-color: var(--color-secondary);
    height: 100%;
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
}

.nav-off-canvas__header {
    text-align: right;
    margin-bottom: var(--spacing-xl);
}

.nav-off-canvas__close {
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition-base);
}

.nav-off-canvas__close:hover {
    color: var(--color-primary);
}

.nav-off-canvas__content {
    flex-grow: 1;
    overflow-y: auto;
}

.nav-off-canvas__heading {
    font-family: Montserrat;
    font-size: 1.8rem;
    color: white;
    margin-bottom: var(--spacing-medium);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: var(--spacing-small);
    margin-top: var(--spacing-large);
}

.nav-off-canvas__menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-off-canvas__item {
    margin-bottom: 0.5rem;
}

.nav-off-canvas__link {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 0.75rem 0;
    font-size: 1.1rem;
    transition: var(--transition-base);
}

.nav-off-canvas__link:hover {
    color: white;
    padding-left: var(--spacing-small);
}

.nav-off-canvas__submenu {
    list-style: none;
    padding-left: 1.5rem;
    margin: 0.5rem 0;
    display: none;
}

.nav-off-canvas__item--has-children.is-active > .nav-off-canvas__submenu {
    display: block;
}

.nav-off-canvas__item--has-children > .nav-off-canvas__link {
    position: relative;
    padding-right: 2rem;
}

.nav-off-canvas__item--has-children > .nav-off-canvas__link::after {
    content: '\f107';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    transition: transform 0.3s ease;
}

.nav-off-canvas__item--has-children.is-active > .nav-off-canvas__link::after {
    transform: translateY(-50%) rotate(180deg);
}

/* TTU Menu Overlay */
.ttu-menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: #1a337ef2;
  backdrop-filter: blur(4px);
  display: none;
  align-items: stretch;
  justify-content: flex-start;
  transition: opacity 0.3s;
}

.ttu-menu-overlay.active {
  display: flex;
}

.ttu-menu-overlay__content {
  display: flex;
  width: 100vw;
  height: 100vh;
  position: relative;
}

.ttu-menu-overlay__left {
  width: 420px;
  background: transparent;
  padding: 48px 40px 120px 48px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 100vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #444 #222;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.ttu-menu-overlay__left::-webkit-scrollbar {
  width: 8px;
  background: #222;
}

.ttu-menu-overlay__left::-webkit-scrollbar-thumb {
  background: #444;
  border-radius: 4px;
}

.ttu-menu-overlay__left::-webkit-scrollbar-thumb:hover {
  background: #666;
}

.ttu-menu-overlay__logo {
  margin-bottom: 48px;
}

.ttu-menu-overlay__logo img {
  height: 60px;
  width: auto;
}

.ttu-menu-overlay__nav {
  width: 100%;
}

.ttu-menu-overlay__menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ttu-menu-overlay__menu > li {
  margin-bottom: 32px;
}

.ttu-menu-overlay__menu > li > a,
.ttu-menu-overlay__menu > li > button.submenu-toggle {
  font-family: 'Playfair Display', serif;
  font-size: 2.2rem;
  color: #fff;
  background: none;
  border: none;
  padding: 0;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s;
  outline: none;
  display: block;
  text-align: left;
}

.ttu-menu-overlay__menu > li > a:hover,
.ttu-menu-overlay__menu > li > button.submenu-toggle:hover {
  color: #f9b233;
}

.has-submenu > .submenu-toggle[aria-expanded="true"]::after {
  content: "▲";
  margin-left: 12px;
  font-size: 1.1rem;
}

.has-submenu > .submenu-toggle[aria-expanded="false"]::after {
  content: "▼";
  margin-left: 12px;
  font-size: 1.1rem;
}

.submenu {
  display: none;
  margin-top: 12px;
  margin-left: 18px;
  padding-left: 12px;
  border-left: 2px solid #444;
}

.has-submenu.open > .submenu {
  display: block;
  animation: fadeIn 0.2s;
}

.submenu li {
  margin-bottom: 16px;
}

.submenu a,
.submenu button.submenu-toggle {
  font-size: 1.1rem;
  color: #e0e0e0;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: color 0.2s;
  outline: none;
  text-align: left;
}

.submenu a:hover,
.submenu button.submenu-toggle:hover {
  color: #f9b233;
}

.ttu-menu-overlay__right {
  flex: 1;
}

.ttu-menu-overlay__close {
  position: absolute;
  top: 32px;
  right: 48px;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.5rem;
  cursor: pointer;
  z-index: 10;
  transition: color 0.2s;
}

.ttu-menu-overlay__close:hover {
  color: #f9b233;
}

.ttu-menu-overlay__quicklinks {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: #1a337ef2;
  border-top: 1px solid #333;
  padding: 18px 48px;
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 1.05rem;
  z-index: 100;
}

.ttu-menu-overlay__quicklinks span {
  color: #f9b233;
  font-weight: 600;
  margin-right: 12px;
}

.ttu-menu-overlay__quicklinks a {
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  margin-right: 18px;
  transition: color 0.2s;
}

.ttu-menu-overlay__quicklinks a:hover {
  color: #f9b233;
}

/* Responsive adjustments */
@media (max-width: 700px) {
  .ttu-menu-overlay__left {
    width: 100vw;
    padding: 32px 16px 100px 16px;
    height: 100vh;
  }
  .ttu-menu-overlay__close {
    right: 16px;
    top: 16px;
  }
  .ttu-menu-overlay__quicklinks {
    padding: 12px 8px;
    font-size: 0.98rem;
    gap: 12px;
  }
}

@media (max-width: 767px) {
    .nav-off-canvas__inner {
        width: 100%;
    }
    
    .nav-off-canvas__link {
        font-size: 1rem;
    }
    
    /* Mobile Navigation */
    .nav-primary__toggle {
        display: block;
        background: none;
        border: none;
        color: white;
        font-size: 1.5rem;
        cursor: pointer;
        padding: var(--spacing-small);
    }
    
    .nav-primary__menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--color-primary);
        padding: var(--spacing-medium);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
    }
    
    .nav-primary__menu.is-active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-primary__list {
        flex-direction: column;
        gap: var(--spacing-small);
    }
    
    .nav-primary__link {
        display: block;
        padding: var(--spacing-medium);
    }
}

/* Header Navigation Responsive Styles */
@media (max-width: 1024px) {
    .site-header__right {
        gap: var(--spacing-medium);
    }

    .site-header__actions {
        padding: var(--spacing-small) var(--spacing-medium);
    }

    .site-header__search-toggle,
    .site-header__menu-toggle {
        font-size: 1.3rem;
    }

    .site-header__wrapper {
        padding: 0;
    }

    .site-header__left {
        padding-left: var(--spacing-medium);
    }

    .site-header__actions {
        border-radius: 0;
        border-top-left-radius: var(--border-radius);
        border-bottom-left-radius: var(--border-radius);
    }
}

@media (max-width: 768px) {
    .site-header__actions {
        padding: var(--spacing-small) var(--spacing-medium);
    }

    .site-header__search-toggle,
    .site-header__menu-toggle {
        font-size: 1.2rem;
    }

    .site-header__wrapper {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-header__right {
        width: 100%;
        justify-content: space-between;
        margin-top: var(--spacing-small);
    }

    .btn--circular {
        width: 35px; /* Further reduced for smaller screens */
        height: 35px;
        font-size: 1rem;
    }

    .site-header__search-toggle span,
    .site-header__menu-toggle span {
        display: none; /* Hide text on smaller screens if needed */
    }
}

@media (max-width: 480px) {
    .site-header__actions {
        padding: 5px 10px;
        border-radius: 5px;
        border-top-left-radius: var(--border-radius);
        border-bottom-left-radius: var(--border-radius);
    }

    .site-header__search-toggle,
    .site-header__menu-toggle {
        font-size: 1rem;
    }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Focus styles for accessibility */
.ttu-menu-overlay__menu a:focus, 
.ttu-menu-overlay__menu button:focus, 
.submenu a:focus, 
.submenu button:focus {
  outline: 2px solid #f9b233;
  outline-offset: 2px;
}