/* Dashboard Header Styles */

.dashboard-header {
    background: #163146 ;
    padding: 6px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

/* Logo */
.header-logo {
    flex-shrink: 0;
    margin-right: 10px;
}

.header-logo a {
    display: flex;
    align-items: center;
    line-height: 0;
}

.header-logo img {
    height: 36px;
    width: auto;
}

/* Main Navigation */
.main-navigation {
    flex: 0 0 auto;
    margin-left: 20px;
}

.main-navigation ul {
    display: flex;
    align-items: center;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-navigation li {
    position: relative;
    margin: 0;
}

.main-navigation a {
    color: #ffffff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 18px 20px;
    display: block;
    border-bottom: 3px solid transparent;
}

.main-navigation a:hover {
    color: rgba(255, 255, 255, 0.95);
    border-bottom-color: rgba(255, 193, 7, 0.3);
}

.main-navigation li.active a {
    color: #FFC107;
}

.main-navigation li.active a::after {
    display: none;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 25px;
    margin-left: auto;
}

/* Search Wrapper */
.search-wrapper {
    position: relative;
}

.search-form-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    padding: 10px;
    transition: all 0.3s ease;
    min-width: 280px;
}

.search-form-wrapper:focus-within {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    border-radius: 10px;
}

.search-field {
    background: transparent;
    border: none;
    color: #ffffff;
    outline: none;
    width: 100%;
    font-size: 14px;
    padding: 0;
    margin-left: 12px;
}

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

.search-submit {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    transition: color 0.3s ease;
}

.search-submit:hover {
    color: #ffffff;
}

/* Search Dropdown */
.search-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    width: 400px;
    max-height: 500px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.search-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.search-results {
    max-height: 500px;
    overflow-y: auto;
    padding: 10px;
}

/* Search Result Item */
.search-result-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    color: inherit;
}

.search-result-item:hover {
    background: #F3F4F6;
}

.search-result-image {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}

.search-result-info {
    flex: 1;
    min-width: 0;
}

.search-result-title {
    font-size: 14px;
    font-weight: 600;
    color: #1F2937;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.search-result-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: #6B7280;
}

.search-result-instructor {
    color: #335EF7;
    font-weight: 500;
}

.search-result-role {
    color: #9CA3AF;
}

/* Search States */
.search-loading,
.search-no-results {
    padding: 40px 20px;
    text-align: center;
    color: #6B7280;
    font-size: 14px;
}

.search-no-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

/* Custom Scrollbar */
.search-results::-webkit-scrollbar {
    width: 6px;
}

.search-results::-webkit-scrollbar-track {
    background: #F3F4F6;
}

.search-results::-webkit-scrollbar-thumb {
    background: #D1D5DB;
    border-radius: 3px;
}

.search-results::-webkit-scrollbar-thumb:hover {
    background: #9CA3AF;
}

/* Responsive */
@media (max-width: 768px) {
    .search-dropdown {
        width: 340px;
        right: 0;
        left: auto;
    }
}

@media (max-width: 480px) {
    .search-dropdown {
        width: calc(100vw - 30px);
    }
}
.search-form {
    display: flex;
    align-items: center;
    padding: 6px;
    transition: all 0.3s ease;
    min-width: 280px;
}

.search-form:focus-within {
    border-color: #ffffff;
}

.search-field {
    background: transparent;
    border: none;
    color: #ffffff;
    outline: none;
    width: 100%;
    font-size: 14px;
    padding: 0;
}

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

.search-submit {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    padding: 0;
    margin-left: 12px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    transition: color 0.3s ease;
}
.header-actions input[type=search]{
    border: none !important;
    color: #ffffff !important;
}
.search-submit:hover {
    color: #ffffff;
}

/* User Profile */
.user-profile {
    position: relative;
}

.user-avatar-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.25);
    background: #ffffff;
    cursor: pointer;
    padding: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    color: #1e3a5f;
}

.user-avatar-btn:hover {
    border-color: #FFC107;
    transform: scale(1.05);
}

.user-avatar-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-initials {
    font-size: 15px;
    font-weight: 600;
    color: #1e3a5f;
}

/* User Dropdown */
.user-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 100;
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 15px;
    width: 12px;
    height: 12px;
    background: #ffffff;
    transform: rotate(45deg);
}

.user-info {
    padding: 20px;
    border-bottom: 1px solid #E5E7EB;
}

.user-name {
    font-size: 15px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 4px;
}

.user-email {
    font-size: 13px;
    color: #6B7280;
}

.dropdown-item {
    display: block;
    padding: 12px 20px;
    color: #374151;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background: #F3F4F6;
    color: #335EF7;
}

.dropdown-item.logout {
    color: #EF4444;
}

.dropdown-item.logout:hover {
    background: #FEE2E2;
    color: #DC2626;
}

.dropdown-divider {
    height: 1px;
    background: #E5E7EB;
    margin: 0;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: #ffffff;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

/* Mobile Navigation */
.mobile-navigation {
    background: #1a3d56;
    display: none;
    padding: 20px;
}

.mobile-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-navigation li {
    margin-bottom: 10px;
}

.mobile-navigation a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    padding: 12px 15px;
    display: block;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.mobile-navigation li.active a,
.mobile-navigation a:hover {
    background: rgba(51, 94, 247, 0.2);
    color: #ffffff;
}

.mobile-navigation.show {
    display: block;
}

/* Responsive Design */
@media (max-width: 992px) {
    .main-navigation {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .search-form {
        min-width: 200px;
    }
    
    .header-container {
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 15px;
        gap: 15px;
    }
    
    .header-logo img {
        height: 32px;
    }
    
    .search-form {
        padding: 8px 14px;
        min-width: 160px;
    }
    
    .search-field {
        font-size: 13px;
    }
    
    .user-avatar-btn {
        width: 40px;
        height: 40px;
    }
    
    .user-initials {
        font-size: 14px;
    }
    
    .user-dropdown {
        right: -10px;
    }
}

@media (max-width: 480px) {
    .search-form {
        min-width: 120px;
        padding: 6px 10px;
    }
    
    .search-field {
        font-size: 12px;
    }
    
    .header-actions {
        gap: 12px;
    }
    
    .user-avatar-btn {
        width: 38px;
        height: 38px;
    }
}