.site-header {
    position: fixed;
    top: 18px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;

    width: min(var(--container), calc(100% - 32px));
    height: 72px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;

    padding: 12px 14px 12px 18px;

    border: 1px solid rgba(212, 175, 90, 0.18);
    border-radius: 999px;
    background: rgba(6, 11, 9, 0.72);
    backdrop-filter: blur(22px);
    box-shadow:
        0 20px 80px rgba(0, 0, 0, 0.45),
        inset 0 0 30px rgba(184, 144, 58, 0.05);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 900;
    letter-spacing: 0.08em;
}

.brand__text {
    height: 46px !important;
    width: auto !important;
    max-width: none !important;
    display: block !important;
    flex-shrink: 0 !important;
    filter:
        drop-shadow(0 0 8px rgba(212, 175, 90, 0.32))
        drop-shadow(0 2px 4px rgba(0, 0, 0, 0.45));
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 20px;
    color: rgba(232, 230, 220, 0.74);
    font-size: 0.82rem;
    white-space: nowrap;
}

.site-nav a:hover {
    color: var(--ot-gold-soft);
}

.header-cta,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 22px;
    border-radius: 999px;
    font-weight: 800;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.header-cta {
    color: var(--ot-black);
    background: linear-gradient(135deg, var(--ot-gold-soft), var(--ot-gold));
    box-shadow: var(--shadow-gold);
}

.btn:hover,
.header-cta:hover {
    transform: translateY(-2px);
}

.btn--primary {
    color: var(--ot-black);
    background:
        linear-gradient(135deg, #F8ECC6 0%, var(--ot-gold) 48%, #957029 100%);
    box-shadow: var(--shadow-gold);
}

.btn--secondary {
    color: var(--ot-white);
    border: 1px solid rgba(212, 175, 90, 0.22);
    background: rgba(255,255,255,0.04);
}

.site-footer {
    width: min(var(--container), calc(100% - 40px));
    margin: 0 auto;
    padding: 36px 0 50px;
    border-top: 1px solid rgba(212, 175, 90, 0.14);
    color: var(--ot-muted);
}


/* =========================================================
   OLIVOTRONIC · PREMIUM COMPONENT MOTION
   ========================================================= */

.site-header {
    transition:
        background 0.35s ease,
        border-color 0.35s ease,
        box-shadow 0.35s ease,
        transform 0.35s ease;
}

.site-header.is-scrolled {
    background: rgba(6, 11, 9, 0.86);
    border-color: rgba(212, 175, 90, 0.28);
    box-shadow:
        0 24px 90px rgba(0, 0, 0, 0.58),
        0 0 60px rgba(184, 144, 58, 0.10),
        inset 0 0 30px rgba(184, 144, 58, 0.06);
}

.brand__mark {
    position: relative;
    overflow: hidden;
}

.brand__mark::after {
    content: "";
    position: absolute;
    inset: -40%;
    background: linear-gradient(
        120deg,
        transparent 0%,
        rgba(255,255,255,0.55) 48%,
        transparent 70%
    );
    transform: translateX(-140%) rotate(20deg);
    animation: brandShine 5.5s ease-in-out infinite;
}

.btn,
.header-cta {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.btn::before,
.header-cta::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(circle at 30% 10%, rgba(255,255,255,0.36), transparent 32%),
        linear-gradient(120deg, transparent, rgba(255,255,255,0.22), transparent);
    opacity: 0;
    transform: translateX(-40%);
    transition: opacity 0.28s ease, transform 0.45s ease;
}

.btn:hover::before,
.header-cta:hover::before {
    opacity: 1;
    transform: translateX(40%);
}

.btn--primary:hover,
.header-cta:hover {
    box-shadow:
        0 0 38px rgba(212, 175, 90, 0.42),
        0 0 85px rgba(184, 144, 58, 0.25);
}

.btn--secondary:hover {
    border-color: rgba(212, 175, 90, 0.42);
    box-shadow:
        0 0 30px rgba(212, 175, 90, 0.12),
        inset 0 0 24px rgba(212, 175, 90, 0.04);
}

.site-nav a {
    position: relative;
    transition: color 0.25s ease;
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -10px;
    width: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--ot-gold-soft), transparent);
    transform: translateX(-50%);
    transition: width 0.25s ease;
}

.site-nav a:hover::after {
    width: 100%;
}

@keyframes brandShine {
    0%, 60% {
        transform: translateX(-140%) rotate(20deg);
    }

    78%, 100% {
        transform: translateX(140%) rotate(20deg);
    }
}