/* Navigation */
.navbar {
    background-color: var(--light-color);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Navigation Brand */
.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.nav-brand h2 {
    color: var(--primary-color);
    font-weight: 700;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

.nav-link.active::after {
    width: 100%;
}

/* Mobile Navigation */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 3px 0;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Mobile Styles */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        background-color: var(--light-color);
        width: 100%;
        flex-direction: column;
        text-align: center;
        padding: 2rem 0;
        box-shadow: var(--shadow);
        transition: var(--transition);
        gap: 1.5rem;
    }

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