/* ==========================================================================
   Shared top navigation bar — identical markup/behavior on every page
   (brand.html, news.html, podcast.html, about-us.html).
   Self-contained and namespaced under .site-nav so it never collides with
   the per-page .top-nav rules in login.css / styles-new.css.
   ========================================================================== */

.site-nav {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px clamp(16px, 4vw, 48px);
    background: rgba(248, 247, 242, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    font-family: 'Noto Serif SC', 'Source Han Serif SC', serif;
}

/* When the shared nav is used inside the brand/about landing wrapper,
   drop the old fixed-nav top padding compensation. */
.site-nav + .landing-container,
body > .landing-container:first-child {
    padding-top: 0;
}

.site-nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #000;
    text-decoration: none;
    flex: 0 0 auto;
    transition: opacity 0.2s ease;
}

.site-nav-logo:hover {
    opacity: 0.8;
}

.site-nav-logo img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    object-fit: contain;
}

.site-nav-brand {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0;
}

.site-nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    position: relative;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border: 1px solid rgba(18, 18, 18, 0.1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.72);
    color: #000;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.site-nav-toggle:hover {
    background: rgba(255, 255, 255, 0.92);
    border-color: rgba(18, 18, 18, 0.18);
    box-shadow: 0 8px 20px rgba(18, 18, 18, 0.08);
}

.site-nav-toggle span {
    width: 16px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform 0.24s ease, opacity 0.18s ease;
}

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

.site-nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: #666;
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.2s ease;
}

.site-nav-link:hover {
    color: #000;
}

/* --- Mobile / tablet: collapse links behind the hamburger --- */
@media (max-width: 1024px) {
    .site-nav {
        padding: 8px 14px;
    }

    .site-nav-toggle {
        display: inline-flex;
        width: 36px;
        height: 36px;
        gap: 4px;
        border-radius: 8px;
    }

    .site-nav-toggle span {
        width: 14px;
        height: 2px;
    }

    .site-nav-logo {
        gap: 8px;
    }

    .site-nav-logo img {
        width: 30px;
        height: 30px;
        border-radius: 8px;
    }

    .site-nav-brand {
        font-size: 0.875rem;
    }

    .site-nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0 clamp(16px, 4vw, 32px);
        background: rgba(248, 247, 242, 0.98);
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        border-radius: 0 0 16px 16px;
        box-shadow: 0 18px 42px rgba(18, 18, 18, 0.12);
        display: grid;
        grid-template-rows: 0fr;
        overflow: hidden;
        opacity: 0;
        pointer-events: none;
        transition: grid-template-rows 0.28s ease, padding 0.28s ease, opacity 0.2s ease;
    }

    .site-nav-links > * {
        min-height: 0;
    }

    .nav-open .site-nav-links {
        grid-template-rows: 1fr;
        padding: 8px clamp(16px, 4vw, 32px) 12px;
        opacity: 1;
        pointer-events: auto;
    }

    .site-nav-link {
        width: 100%;
        padding: 11px 2px;
        font-size: 0.875rem;
        border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    }

    .site-nav-link:last-child {
        border-bottom: none;
    }

    /* Hamburger -> X */
    .nav-open .site-nav-toggle span:nth-child(1) {
        transform: translate(-50%, -50%) rotate(45deg);
    }

    .nav-open .site-nav-toggle span:nth-child(2) {
        opacity: 0;
    }

    .nav-open .site-nav-toggle span:nth-child(3) {
        transform: translate(-50%, -50%) rotate(-45deg);
    }

    .nav-open .site-nav-toggle span:nth-child(1),
    .nav-open .site-nav-toggle span:nth-child(3) {
        position: absolute;
        left: 50%;
        top: 50%;
    }
}

@media (max-width: 768px) {
    .site-nav {
        padding: 7px 12px;
        gap: 8px;
    }

    .site-nav-toggle {
        width: 32px;
        height: 32px;
        gap: 3px;
    }

    .site-nav-toggle span {
        width: 13px;
        height: 2px;
    }

    .site-nav-logo {
        gap: 7px;
    }

    .site-nav-logo img {
        width: 28px;
        height: 28px;
        border-radius: 7px;
    }

    .site-nav-brand {
        font-size: 0.8125rem;
    }

    .site-nav-links {
        padding: 0 12px;
    }

    .nav-open .site-nav-links {
        padding: 6px 12px 10px;
    }

    .site-nav-link {
        padding: 10px 2px;
        font-size: 0.8125rem;
    }
}