/* Focus for keyboard users */
:focus-visible {
    outline: 0.1875rem solid var(--accent); /* 3px */
    outline-offset: 0.125rem; /* 2px */
}

/* Screen-reader only helper */
.sr-only {
    position: absolute;
    width: 0.0625rem;
    height: 0.0625rem;
    padding: 0;
    margin: -0.0625rem;
    overflow: hidden;
    clip: rect(0, 0, 0.0625rem, 0.0625rem);
    white-space: nowrap;
    border: 0;
}

/* --- Header --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: #f3f4f6;
    backdrop-filter: saturate(180%) blur(0.5rem);
    border-bottom: 0.0625rem solid var(--border);
}

.nav-container {
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
}

/* Brand */
.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--brand);
    text-decoration: none;
    min-height: var(--tap);
}

.logo {
    font-size: 1.375rem;
    line-height: 1;
}

.brand-text {
    font-weight: 700;
    font-size: 1.125rem;
}

/* Toggle (mobile) */
.nav-toggle {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--tap);
    height: var(--tap);
    border: 0.0625rem solid var(--border);
    border-radius: 0.625rem;
    background: transparent;
    color: var(--text);
    cursor: pointer;
}

.nav-toggle .icon {
    display: block;
}

/* --- Primary Nav (mobile defaults) --- */
.primary-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: #f3f4f6;
    border-bottom: 0.0625rem solid var(--border);
    transform: translateY(-0.375rem);
    opacity: 0;
    visibility: hidden;
    transition: opacity 150ms ease, transform 150ms ease;
}

/* When open (mobile) */
.primary-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    width: 30%;
    right: 0;
    left: auto;
    /* background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px); */
}

/* ✅ Only target top-level nav list */
.primary-nav > ul {
    list-style: none;
    margin: 0;
    padding: 0.5rem;
    display: grid;
    gap: 0.375rem;
}

/* ✅ Only target top-level links */
.primary-nav > ul > li > a {
    display: block;
    padding: 0.625rem 0.75rem;
    border-radius: 0.5rem;
    text-decoration: none;
    color: var(--text);
}

/* Hover effects */
.primary-nav > ul > li > a:hover {
    background: #f3f4f6;
}

/* CTA button link */
.primary-nav .cta a {
    background: var(--accent);
    color: #fff;
}

.primary-nav .cta a:hover {
    filter: brightness(0.95);
}

/* ✅ Fix: keep Bootstrap dropdown hidden by default */
.primary-nav .dropdown-menu {
    display: none;
}

.primary-nav .dropdown-menu.show {
    display: block;
    background-color: #f3f4f6;
}

/* --- Tablet/Desktop enhancements --- */
@media (min-width: 48rem) {
    .nav-toggle {
        display: none;
    }

    .nav-container {
        gap: 1.25rem;
    }

    .brand-text {
        font-size: 1.25rem;
    }

    .primary-nav {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        border: 0;
    }

    /* ✅ Desktop layout for top-level nav */
    .primary-nav > ul {
        display: flex;
        align-items: center;
        gap: 0.625rem;
        padding: 0;
    }

    .primary-nav > ul > li > a {
        padding: 0.625rem 0.75rem;
    }

    .primary-nav .cta a {
        margin-left: 0.5rem;
    }
}

/* --- Larger screens --- */
@media (min-width: 64rem) {
    .brand-text {
        font-size: 1.375rem;
    }

    .primary-nav > ul > li > a {
        padding: 0.75rem 0.875rem;
    }
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
    .primary-nav {
        transition: none;
    }
}