body {
    margin: 0;
    background: #f8fafc;
    color: #1e293b;
    font-family: Manrope, "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
    color: inherit;
}

.vf-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid #e2e8f0;
    backdrop-filter: blur(14px);
}

.vf-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: #4f46e5;
    font-weight: 800;
    font-size: 1.15rem;
}

.vf-logo {
    width: 2rem;
    height: 2rem;
    border-radius: 0.5rem;
    background: #4f46e5;
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 0.8rem;
}

.vf-nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #64748b;
    font-size: 0.88rem;
    font-weight: 700;
}

.vf-nav-links a {
    text-decoration: none;
}

.vf-page {
    max-width: 68rem;
    margin: 0 auto;
    padding: 2.5rem 1rem 4rem;
}

.vf-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(18rem, 0.92fr);
    gap: 2rem;
    align-items: center;
    min-height: calc(100vh - 9rem);
    padding-bottom: 1.5rem;
}

.vf-kicker {
    display: inline-flex;
    width: fit-content;
    margin-bottom: 1rem;
    padding: 0.35rem 0.65rem;
    border-radius: 0.5rem;
    background: #eef2ff;
    color: #4f46e5;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.vf-hero h1 {
    margin: 0 0 1rem;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1.06;
    letter-spacing: 0;
}

.vf-hero p {
    max-width: 37rem;
    margin: 0 0 1.35rem;
    color: #475569;
    font-size: 1.02rem;
    line-height: 1.75;
}

.vf-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1.35rem 0 1rem;
}

.vf-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.8rem;
    padding: 0 1.15rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 800;
}

.vf-button-primary {
    background: #4f46e5;
    color: #fff;
    box-shadow: 0 12px 24px rgba(79, 70, 229, 0.18);
}

.vf-button-secondary {
    background: #fff;
    color: #334155;
    border: 1px solid #cbd5e1;
}

.vf-proof {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1.1rem 0 0;
    padding: 0;
    list-style: none;
}

.vf-proof li {
    padding: 0.4rem 0.6rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    background: #fff;
    color: #64748b;
    font-size: 0.8rem;
    font-weight: 700;
}

.vf-preview {
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    background: #fff;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
    overflow: hidden;
}

.vf-preview-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid #e2e8f0;
    color: #64748b;
    font-size: 0.8rem;
    font-weight: 800;
}

.vf-preview-body {
    padding: 1rem;
}

.vf-drop {
    display: grid;
    place-items: center;
    min-height: 9rem;
    border: 1px dashed #a5b4fc;
    border-radius: 0.65rem;
    background: #eef2ff;
    color: #4338ca;
    text-align: center;
    font-weight: 800;
}

.vf-lines {
    display: grid;
    gap: 0.6rem;
    margin-top: 1rem;
}

.vf-line {
    height: 0.7rem;
    border-radius: 999px;
    background: #e2e8f0;
}

.vf-line:nth-child(2) {
    width: 82%;
}

.vf-line:nth-child(3) {
    width: 64%;
}

.vf-export-row {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.vf-export-row span {
    padding: 0.45rem 0.65rem;
    border-radius: 0.45rem;
    background: #f8fafc;
    color: #4f46e5;
    font-size: 0.78rem;
    font-weight: 800;
}

.vf-section {
    padding: 3rem 0 0;
}

.vf-section h2 {
    margin: 0 0 1rem;
    font-size: 1.55rem;
    line-height: 1.25;
}

.vf-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.vf-card {
    padding: 1.15rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    background: #fff;
}

.vf-card h3 {
    margin: 0 0 0.45rem;
    font-size: 1rem;
}

.vf-card p,
.vf-card li {
    margin: 0;
    color: #64748b;
    font-size: 0.9rem;
    line-height: 1.7;
}

.vf-card ul,
.vf-steps {
    margin: 0;
    padding-left: 1.2rem;
}

.vf-related {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
}

.vf-related a {
    padding: 0.65rem 0.8rem;
    border-radius: 0.5rem;
    background: #fff;
    border: 1px solid #e2e8f0;
    text-decoration: none;
    color: #334155;
    font-size: 0.88rem;
    font-weight: 800;
}

.vf-seo-copy {
    margin-top: 2rem;
    padding: 1.5rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.85rem;
    background: #fff;
}

.vf-seo-copy p,
.vf-seo-copy li {
    color: #475569;
    font-size: 0.95rem;
    line-height: 1.85;
}

.vf-seo-copy p { margin: 0 0 1rem; }
.vf-seo-copy h2:not(:first-child) { margin-top: 1.6rem; }
.vf-faq-list { display: grid; gap: 0.75rem; }
.vf-faq-item { padding: 1rem; border-radius: 0.65rem; background: #f8fafc; border: 1px solid #e2e8f0; }
.vf-faq-item h3 { margin: 0 0 0.35rem; font-size: 1rem; }
.vf-faq-item p { margin: 0; }

.vf-footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
    color: #94a3b8;
    font-size: 0.8rem;
    text-align: center;
}
.vf-footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-top: 0.65rem;
}
.vf-footer-links a {
    color: #64748b;
    text-decoration: none;
    font-weight: 700;
}
.vf-footer-links a:hover { color: #4f46e5; }

@media (max-width: 760px) {
    .vf-nav {
        padding: 0 1rem;
    }

    .vf-nav-links {
        gap: 0.65rem;
        font-size: 0.78rem;
    }

    .vf-hero,
    .vf-grid {
        grid-template-columns: 1fr;
    }

    .vf-hero {
        min-height: auto;
        padding-top: 1rem;
    }
}