/* Top navigation — fixed blur bar, hide on scroll down */

.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1.75rem;
    background: rgba(7, 6, 10, 0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(201, 169, 97, 0.12);
    transform: translateY(0);
    transition: transform 0.35s var(--ease-out, cubic-bezier(0.22, 1, 0.36, 1));
    pointer-events: auto;
}

.top-nav--hidden {
    transform: translateY(-100%);
}

.top-nav__brand {
    font-family: var(--font-display, 'Cinzel', serif);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--gold, #c9a961);
    text-transform: uppercase;
}

.top-nav__actions {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.top-nav__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.5rem 1rem;
    font-family: var(--font-ui, 'Inter', sans-serif);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-decoration: none;
    border-radius: 2px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    white-space: nowrap;
}

.top-nav__btn--download {
    color: var(--parchment, #e8dcc4);
    background: rgba(201, 169, 97, 0.08);
    border-color: rgba(201, 169, 97, 0.25);
}

.top-nav__btn--download:hover {
    background: rgba(201, 169, 97, 0.16);
    border-color: rgba(201, 169, 97, 0.45);
}

.top-nav__btn--login {
    color: #0d0a12;
    background: var(--grad-accent, linear-gradient(180deg, #f8e6a3 0%, #c9a961 50%, #8a6d2a 100%));
    border-color: rgba(201, 169, 97, 0.6);
}

.top-nav__btn--login:hover {
    filter: brightness(1.08);
}

.top-nav__btn svg {
    flex-shrink: 0;
}

@media (max-width: 520px) {
    .top-nav {
        padding: 0.7rem 1rem;
    }

    .top-nav__brand {
        font-size: 0.62rem;
        letter-spacing: 0.12em;
    }

    .top-nav__btn {
        padding: 0.45rem 0.75rem;
        font-size: 0.72rem;
    }

    .top-nav__btn span.label-long {
        display: none;
    }
}