/* Top Navigation */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    letter-spacing: -0.5px;
    text-decoration: none;
}

.logo span {
    color: var(--secondary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
    position: relative;
}

.nav-links a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary);
    transition: width 0.2s;
}

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

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

/* Bottom Navigation */
.bottom-nav {
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    background-color: white;
    border-top: 1px solid #e2e8f0;
    position: sticky;
    bottom: 0;
    z-index: 20;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-light);
    flex: 1;
    padding: 8px 0;
    transition: all 0.3s ease;
}

.nav-item.active {
    color: var(--primary);
}

.nav-item:active {
    background-color: rgba(0, 102, 255, 0.05);
}

.nav-icon {
    font-size: 1.3rem;
    margin-bottom: 4px;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
}

@media (min-width: 800px) {
    .bottom-nav {
        display: none !important;
        visibility: hidden;
        opacity: 0;
        pointer-events: none;
    }
}