/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

nav.scrolled {
    background: var(--nav-bg-scrolled);
    box-shadow: var(--shadow-md);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    padding-bottom: 16px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo-img {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    transition: transform 0.2s ease;
}

.nav-logo-img:hover {
    transform: scale(1.05);
}

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

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

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width 0.3s ease;
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle */
.theme-toggle {
    background: var(--btn-secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 20px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
}

.theme-toggle:hover {
    background: var(--btn-secondary-hover-bg);
    border-color: rgba(5, 194, 116, 0.4);
    transform: translateY(-2px);
}

.theme-toggle:active {
    transform: translateY(0);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
}

/* Responsive Navigation */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--nav-bg-scrolled);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 24px;
        transition: right 0.3s ease;
        border-left: 1px solid var(--border-color);
    }

    .nav-links.active {
        right: 0;
    }

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