/* /includes/header.css */

.main-tools-site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(16px);
    background: rgba(15,17,21,0.82);
    border-bottom: 1px solid var(--border);
}

/* layout row always */
.main-tools-site-header-inner {
    max-width: 1400px;
    margin: auto;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* logo smaller, more compact */
.main-tools-site-logo {
    color: var(--text);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 900;
}

/* hamburger hidden on desktop */
.main-tools-nav-toggle {
    display: none;
    font-size: 1.4rem;
    background: none;
    border: none;
    color: var(--text);
    cursor: pointer;
}

/* nav default desktop */
.main-tools-site-nav {
    display: flex;
    gap: 10px;
}

.main-tools-site-nav-button {
    padding: 10px 28px;
    border-radius: 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
    transition: 150ms;
}

.main-tools-site-nav-button:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.main-tools-site-nav-button.active {
    background: rgba(118,169,255,0.12);
    border-color: var(--primary);
    color: var(--primary);
}

/* ================= MOBILE ================= */

@media (max-width: 760px) {

    .main-tools-nav-toggle {
        display: block;
    }

    .main-tools-site-nav {
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;

        display: none;
        flex-direction: column;
        padding: 12px;
        background: rgba(15,17,21,0.98);
        border-bottom: 1px solid var(--border);
    }

    body.main-tools-nav-open .main-tools-site-nav {
        display: flex;
    }

    .main-tools-site-nav-button {
        width: 100%;
        text-align: center;
    }
}
/* subtle dropdown feedback */
.main-tools-site-header {
    transition: box-shadow 160ms ease;
}

body.main-tools-nav-open .main-tools-site-header {
    box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}

/* hamburger animation */
.main-tools-nav-toggle {
    transition: transform 120ms ease;
}

.main-tools-nav-toggle:hover {
    transform: scale(1.1);
}

.main-tools-nav-toggle:active {
    transform: scale(0.96);
}

body.main-tools-nav-open .main-tools-nav-toggle {
    transform: rotate(90deg);
}

/* background dim */
.main-tools-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.35);
    opacity: 0;
    pointer-events: none;
    transition: opacity 160ms ease;
    z-index: 999;
}

body.main-tools-nav-open .main-tools-nav-overlay {
    opacity: 1;
    pointer-events: auto;
}