/* Remove default page margin so the header sits flush at the top */
body {
    margin: 0;
}

/* Scoped nav layout (renamed .container -> .nav-container to avoid global max-width) */
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

.site-header {
    border-bottom: 0;
    background: transparent;
}

.site-main {
    padding: 16px 0;
}

/* Override app.css: bring the fixed nav closer to the top */
.top-nav {
    top: 4px; /* set 0 for completely flush, or tweak as desired */
    /* optional: make the bar a bit tighter */
    min-height: 48px; /* was 56px */
}

.brand {
    text-decoration: none;
    color: #222;
    font-weight: 800;
    letter-spacing: .2px;
    font-size: 1.05rem;
}

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

    .nav-links a {
        color: #2a5bd7;
        text-decoration: none;
        font-weight: 600;
    }

        .nav-links a:hover {
            text-decoration: underline;
        }

/* Mobile collapse */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    width: 40px;
    height: 40px;
    padding: 0;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    content: "";
    display: block;
    height: 2px;
    background: #333;
    border-radius: 2px;
    transition: .2s;
}

.hamburger {
    width: 22px;
    margin: 0 auto;
}

    .hamburger::before {
        width: 22px;
        transform: translateY(-6px);
    }

    .hamburger::after {
        width: 22px;
        transform: translateY(6px);
    }

@media (max-width: 640px) {
    .nav-toggle {
        display: inline-block;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        padding: 8px 0;
    }

        .nav-links.open {
            display: flex;
        }
}