/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Material Symbols Settings */
.material-symbols-outlined {
    font-variation-settings:
        'FILL' 0,
        'wght' 400,
        'GRAD' 0,
        'opsz' 24;
    vertical-align: middle;
    user-select: none;
}

/* Desktop Menu Styles */
.desktop-menu {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.menu-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0 20px;
    position: relative;
}

.menu-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 20px 15px 0;
    font-weight: 600;
    color: #2196F3;
    border-right: 1px solid #e0e0e0;
    margin-right: 20px;
}

.menu-logo .material-symbols-outlined {
    font-size: 28px;
}

/* Main Menu */
.menu-main {
    display: flex;
    list-style: none;
    align-items: center;
    flex: 1;
}

.menu-main > .menu-item {
    position: relative;
}

.menu-main > .menu-item > a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 20px 16px;
    color: #555;
    font-weight: 500;
    position: relative;
}

.menu-main > .menu-item > a:hover {
    color: #2196F3;
    background: rgba(33, 150, 243, 0.05);
}

.menu-main > .menu-item > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: #2196F3;
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.menu-main > .menu-item:hover > a::after {
    width: 100%;
}

.menu-icon {
    font-size: 20px;
}

.submenu-arrow {
    font-size: 18px;
    transition: transform 0.3s ease;
}

/* Submenu Styles */
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: #fff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 100;
}

.menu-item:hover > .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu .menu-item {
    position: relative;
}

.submenu .menu-item > a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    color: #555;
    border-bottom: 1px solid #f0f0f0;
}

.submenu .menu-item:last-child > a {
    border-bottom: none;
}

.submenu .menu-item > a:hover {
    background: #f8f9fa;
    color: #2196F3;
}

/* Nested Submenu */
.submenu .submenu {
    left: 100%;
    top: 0;
    margin-left: 5px;
}

.submenu .has-submenu > a .submenu-arrow {
    margin-left: auto;
    transform: rotate(-90deg);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1001;
    background: #2196F3;
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(33, 150, 243, 0.3);
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: #1976D2;
    transform: scale(1.05);
}

.mobile-menu-toggle .material-symbols-outlined {
    font-size: 28px;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: -300px;
    width: 300px;
    height: 100vh;
    background: #fff;
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.2);
    z-index: 2000;
    transition: all 0.3s ease;
    overflow-y: auto;
}

.mobile-menu.active {
    left: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    background: #2196F3;
    color: #fff;
}

.mobile-menu-header .menu-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
}

.mobile-menu-close {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-close .material-symbols-outlined {
    font-size: 28px;
}

/* Accordion Menu */
.mobile-menu-content {
    padding: 10px 0;
}

.accordion-item {
    border-bottom: 1px solid #e0e0e0;
}

.accordion-header,
.accordion-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    color: #555;
    cursor: pointer;
    transition: all 0.3s ease;
}

.accordion-header:hover,
.accordion-link:hover {
    background: #f8f9fa;
    color: #2196F3;
}

.accordion-arrow {
    margin-left: auto;
    transition: transform 0.3s ease;
}

.accordion-header.active .accordion-arrow {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: #f8f9fa;
}

.accordion-content.active {
    max-height: 1000px;
}

.accordion-content .accordion-item {
    border-bottom: 1px solid #e8e8e8;
}

.accordion-content .accordion-header,
.accordion-content .accordion-link {
    padding-left: 40px;
}

.level-2 .accordion-header,
.level-2 .accordion-link {
    padding-left: 60px;
}

/* Main Content */
.main-content {
    padding: 60px 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

h1 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.feature-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 48px;
    color: #2196F3;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

.admin-link {
    text-align: center;
    margin-top: 50px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border-radius: 50px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: #2196F3;
    color: #fff;
    box-shadow: 0 2px 10px rgba(33, 150, 243, 0.3);
}

.btn-primary:hover {
    background: #1976D2;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(33, 150, 243, 0.4);
}

/* Responsive Design */
@media (max-width: 768px) {
    .desktop-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .main-content {
        padding: 80px 20px 40px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .mobile-menu {
        width: 100%;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .feature-card {
        padding: 20px;
    }
    
    .feature-icon {
        font-size: 36px;
    }
}