header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.navbar {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.9rem 0;
}

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo img {
    height: 42px;
    width: auto;
}

nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

nav a {
    text-decoration: none;
    font-weight: 600;
    color: var(--text);
    transition: color 0.2s ease;
}

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

#menu-toggle,
#themeToggle {
    border: none;
    background: none;
    cursor: pointer;
}

#menu-toggle {
    display: none;
    font-size: 1.4rem;
    color: var(--text);
}

#themeToggle {
    font-size: 1.2rem;
    color: var(--text);
    transition: transform 0.2s ease;
}

#themeToggle:hover {
    transform: scale(1.08);
}