.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 99999;
    box-shadow: 0 2px 15px rgba(0,0,0,.3);
}

.sh-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    padding: 0 32px;
    position: relative;
}

.sh-logo {
    text-decoration: none;
    flex-shrink: 0;
}
.sh-logo img {
    height: 58px;
    object-fit: contain;
    display: block;
}
.sh-logo-txt {
    color: #fff;
}

/* ── Nav desktop ── */
.sh-nav {
    display: flex;
    gap: 4px;
    align-items: center;
    flex-wrap: nowrap;
    overflow: visible;
}
.sh-nav a {
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: .06em;
    white-space: nowrap;
    position: relative;
    padding: 8px 12px;
    border-radius: 8px;
    transition:
            background .25s ease,
            box-shadow  .25s ease,
            transform   .2s  ease;
}
.sh-nav a:hover {
    background: rgba(255,255,255,.12);
    box-shadow:
            0 0 12px rgba(255,255,255,.18),
            0 0 24px rgba(255,255,255,.10);
    transform: translateY(-1px);
}
.sh-nav a::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255,255,255,.18), rgba(255,255,255,.04));
    opacity: 0;
    transition: opacity .25s ease;
    pointer-events: none;
}
.sh-nav a:hover::before { opacity: 1; }

/* Botón unidad de negocio */
.sh-unidad-btn {
    padding: 5px 14px !important;
    border: 1.5px solid rgba(255,255,255,.35) !important;
    border-radius: 20px !important;
    transition: background .25s !important;
}
.sh-unidad-btn:hover {
    background: rgba(255,255,255,.15) !important;
}

/* ── Hamburger ── */
.sh-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 44px;
    height: 44px;
    position: relative;
    z-index: 100001;
    flex-shrink: 0;
}
.sh-hamburger span {
    display: block;
    width: 26px;
    height: 3px;
    background: #fff;
    border-radius: 3px;
    transition: all .3s ease;
    position: absolute;
    left: 9px;
}
.sh-hamburger span:nth-child(1) { top: 14px; }
.sh-hamburger span:nth-child(2) { top: 21px; }
.sh-hamburger span:nth-child(3) { top: 28px; }
.sh-hamburger.open span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.sh-hamburger.open span:nth-child(2) { opacity: 0; }
.sh-hamburger.open span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ── Mobile nav ── */
.sh-nav-mobile {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    height: 100vh;
    z-index: 100000;
    transition: right 0.3s ease-in-out;
    overflow-y: auto;
    box-shadow: -5px 0 20px rgba(0,0,0,.2);
}
.sh-nav-mobile.open { right: 0; }

.sh-mobile-inner {
    padding: 90px 28px 32px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.sh-nav-mobile a {
    color: #fff;
    text-decoration: none;
    padding: 13px 16px;
    border-bottom: 1px solid rgba(255,255,255,.1);
    display: block;
    border-radius: 8px;
    transition: background .2s, padding-left .2s;
}
.sh-nav-mobile a:hover {
    background: rgba(255,255,255,.10);
    box-shadow: 0 0 10px rgba(255,255,255,.15);
    padding-left: 22px;
}
.sh-nav-mobile a::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255,255,255,.18), rgba(255,255,255,.04));
    opacity: 0;
    transition: opacity .25s ease;
    pointer-events: none;
}
.sh-nav-mobile a:hover::before { opacity: 1; }

/* ── Overlay ── */
.sh-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 99998;
    backdrop-filter: blur(3px);
    cursor: pointer;
}
.sh-overlay.active { display: block !important; }

/* ── Responsive ── */
@media (max-width: 1200px) {
    .sh-nav { gap: 2px; }
    .sh-nav a { padding: 8px 8px; letter-spacing: .04em; }
    .sh-container { padding: 0 20px; }
}

@media (max-width: 992px) {
    .sh-nav       { display: none !important; }
    .sh-hamburger { display: block !important; }
}

@media (max-width: 480px) {
    .sh-container  { padding: 0 16px; }
    .sh-nav-mobile { width: 85%; }
}