.top-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    z-index: 1000;
    padding: 12px 20px;
    box-sizing: border-box;
}

.header-links {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.header-nav {
    display: flex;
    justify-content: flex-start;
    gap: 10px;
    flex-wrap: wrap;
}

.header-actions {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.header-link {
    text-decoration: none;
    color: #1f2937;
    border: 1px solid #d1d5db;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    background: #ffffff;
}

.header-link:hover {
    background: #f3f4f6;
}

.payment-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #7a2e00;
    background: linear-gradient(135deg, #ffe8d6 0%, #ffd2ab 100%);
    border: 1px solid #f2a35f;
    border-radius: 10px;
    padding: 7px 12px;
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
}

.payment-btn:link,
.payment-btn:visited {
    color: #7a2e00;
    text-decoration: none;
}

.payment-btn:hover {
    background: linear-gradient(135deg, #ffdcbf 0%, #ffc08d 100%);
    color: #612400;
    text-decoration: none;
}

.install-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #0f5132;
    background: linear-gradient(135deg, #d9f8e7 0%, #b7f0d1 100%);
    border: 1px solid #86d6af;
    border-radius: 10px;
    padding: 7px 12px;
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
}

.install-btn:link,
.install-btn:visited {
    color: #0f5132;
    text-decoration: none;
}

.install-btn:hover {
    background: linear-gradient(135deg, #c8f2dc 0%, #9fe7c1 100%);
    color: #0a3f27;
    text-decoration: none;
}

.install-btn span,
.payment-btn span {
    line-height: 1;
}

.payment-icon {
    font-size: 0.95rem;
}

.install-btn img {
    width: 18px;
    height: 18px;
    border-radius: 4px;
}

@media (max-width: 768px) {
    .top-header {
        padding: 10px 12px;
    }

    .header-links {
        flex-direction: column;
        align-items: stretch;
    }

    .header-nav {
        gap: 8px;
    }

    .header-actions {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .header-link {
        font-size: 0.8rem;
        padding: 7px 10px;
    }

    .install-btn,
    .payment-btn {
        justify-content: center;
        font-size: 0.82rem;
        padding: 8px 10px;
    }
}