/* =====================================================
   SITE-NAV  –  Self-contained, conflict-free header
   All selectors scoped to #site-nav / #sn-overlay
   so nothing here can conflict with styles.css
   ===================================================== */

#site-nav {
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    width: 100%;
    box-sizing: border-box;
}

#site-nav .sn-inner {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    box-sizing: border-box;
}

#site-nav .sn-logo {
    font-size: 1.75rem;
    font-weight: bold;
    background: linear-gradient(45deg,#ff6b6b,#4ecdc4,#45b7d1,#96ceb4,#feca57);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: sn-rainbow 3s ease-in-out infinite alternate;
    text-decoration: none;
    white-space: nowrap;
}

@keyframes sn-rainbow {
    0%   { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(360deg); }
}

#site-nav .sn-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

#site-nav .sn-links a {
    text-decoration: none;
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s;
    white-space: nowrap;
}

#site-nav .sn-links a:hover { color: #4ecdc4; }

#site-nav .sn-cta {
    background: linear-gradient(45deg,#667eea,#764ba2);
    color: #fff;
    padding: 0.65rem 1.4rem;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-weight: bold;
    font-size: 0.95rem;
    transition: transform 0.3s, box-shadow 0.3s;
    white-space: nowrap;
}

#site-nav .sn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102,126,234,0.5);
}

#site-nav .sn-burger {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.9rem;
    cursor: pointer;
    padding: 0.2rem 0.4rem;
    line-height: 1;
}

/* ── Mobile overlay ── */
#sn-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10,14,39,0.97);
    z-index: 99999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.8rem;
    padding: 2rem;
}

#sn-overlay .sn-ov-close {
    position: absolute;
    top: 1rem;
    right: 1.2rem;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.5rem;
}

#sn-overlay a {
    color: #fff;
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all 0.3s;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    min-width: 200px;
    text-align: center;
}

#sn-overlay a:hover {
    color: #4ecdc4;
    background: rgba(78,205,196,0.1);
    transform: translateX(5px);
}

/* ── Responsive breakpoints ── */
@media (max-width: 767px) {
    #site-nav { padding: 0.4rem 0; }
    #site-nav .sn-inner { flex-wrap: wrap; padding: 0 0.75rem; }
    #site-nav .sn-logo { font-size: 1.4rem; flex: 1; }
    #site-nav .sn-burger { display: block; font-size: 1.6rem; }
    #site-nav .sn-links { display: none; }
    #site-nav .sn-cta {
        width: 100%;
        order: 3;
        margin-top: 0.35rem;
        text-align: center;
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}

@media (min-width: 768px) {
    #site-nav            { padding: 1rem 0; }
    #site-nav .sn-logo  { font-size: 2.5rem; }
    #site-nav .sn-inner  { padding: 0 2rem; }
}