/* =========================================================
   All styles scoped to #nf-app — nothing leaks to your theme
   ========================================================= */
#nf-app{
    --ink:#22262B;
    --ink-soft:#5F6874;
    --line:#E9E4DC;
    --line-soft:#F1ECE5;
    --wood:#B07C4A;
    --wood-dark:#8E6135;
    --deep:#1F2A2E;
    --tint:#F7F0E7;
    --tint-line:#EFE3D5;
    --ease:cubic-bezier(.22,.61,.36,1);
    --shadow-sm:0 4px 18px rgba(34,38,43,.06);
    --shadow-md:0 14px 40px rgba(34,38,43,.10);

    display:block;
    width:100%;
    background:#fff;
    color:var(--ink);
    font-family:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
    font-size:16px;
    line-height:1.7;
    text-align:left;
    -webkit-font-smoothing:antialiased;
    -webkit-text-size-adjust:100%;
    overflow-x:hidden;
    isolation:isolate;
}

/* ---------- Local reset ---------- */
#nf-app *,
#nf-app *::before,
#nf-app *::after{ box-sizing:border-box; }

#nf-app h1,
#nf-app h2,
#nf-app h3,
#nf-app h4{
    margin:0;
    padding:0;
    font-weight:600;
    line-height:1.25;
    letter-spacing:-.005em;
    color:var(--ink);
}
#nf-app p,
#nf-app ul,
#nf-app li,
#nf-app dl,
#nf-app dt,
#nf-app dd{ margin:0; padding:0; }
#nf-app ul{ list-style:none; }
#nf-app img{ display:block; max-width:100%; height:auto; }
#nf-app a{ color:inherit; text-decoration:none; }
#nf-app :focus-visible{ outline:2px solid var(--wood); outline-offset:3px; border-radius:6px; }

#nf-app .container{ max-width:1180px; margin:0 auto; padding:0 24px; }

/* ---------- Header ---------- */
#nf-app .site-header{
    position:relative;
    z-index:10;
    background:#fff;
    border-bottom:1px solid var(--line);
}
#nf-app .header-inner{ display:flex; align-items:center; gap:28px; height:70px; }
#nf-app .brand{
    display:flex;
    align-items:baseline;
    gap:8px;
    font-family:'Playfair Display',serif;
    font-weight:700;
    font-size:1.05rem;
}
#nf-app .brand em{
    font-family:'Inter',sans-serif;
    font-style:normal;
    font-weight:400;
    font-size:.7rem;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--wood-dark);
}
#nf-app .nav{
    margin-left:auto;
    display:flex;
    gap:28px;
    font-size:.88rem;
    color:var(--ink-soft);
}
#nf-app .nav a{ position:relative; transition:color .25s var(--ease); }
#nf-app .nav a:hover{ color:var(--ink); }
#nf-app .nav a::after{
    content:'';
    position:absolute;
    left:0;
    bottom:-6px;
    width:0;
    height:1.5px;
    background:var(--wood);
    transition:width .3s var(--ease);
}
#nf-app .nav a:hover::after{ width:100%; }

/* ---------- Buttons ---------- */
#nf-app .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 24px;
    border:1px solid transparent;
    border-radius:999px;
    font-size:.9rem;
    font-weight:500;
    line-height:1.2;
    white-space:nowrap;
    cursor:pointer;
    transition:all .3s var(--ease);
}
#nf-app .btn-primary{ background:var(--deep); color:#fff; }
#nf-app .btn-primary:hover{
    background:#101819;
    transform:translateY(-2px);
    box-shadow:0 12px 26px rgba(31,42,46,.24);
}
#nf-app .btn-ghost{ background:#fff; border-color:var(--line); color:var(--ink); }
#nf-app .btn-ghost:hover{
    border-color:var(--wood);
    color:var(--wood-dark);
    transform:translateY(-2px);
}

/* ---------- Hero ---------- */
#nf-app .hero{ padding:86px 0 92px; background:#fff; overflow:hidden; }
#nf-app .hero-grid{
    display:grid;
    grid-template-columns:1.02fr .98fr;
    gap:60px;
    align-items:center;
}
#nf-app .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:7px 15px;
    border:1px solid var(--tint-line);
    border-radius:999px;
    background:var(--tint);
    font-size:.72rem;
    font-weight:600;
    letter-spacing:.16em;
    text-transform:uppercase;
    color:var(--wood-dark);
}
#nf-app .eyebrow::before{
    content:'';
    width:6px;
    height:6px;
    border-radius:50%;
    background:var(--wood);
}
#nf-app .hero h1{
    margin:22px 0 20px;
    font-family:'Playfair Display',serif;
    font-weight:700;
    font-size:clamp(2.05rem,4.6vw,3.3rem);
    line-height:1.1;
    letter-spacing:-.015em;
}
#nf-app .hero h1 span{ color:var(--wood-dark); }
#nf-app .hero-sub{
    max-width:520px;
    font-size:1.04rem;
    color:var(--ink-soft);
}
#nf-app .hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:34px; }
#nf-app .hero-points{
    display:flex;
    flex-wrap:wrap;
    gap:10px 26px;
    margin-top:32px;
    font-size:.86rem;
    color:var(--ink-soft);
}
#nf-app .hero-points li{ display:flex; align-items:center; gap:8px; }
#nf-app .hero-points li::before{
    content:'';
    flex:none;
    width:5px;
    height:5px;
    border-radius:50%;
    background:var(--wood);
}
#nf-app .hero-media{ display:flex; justify-content:center; }
#nf-app .hero-media img{
    width:100%;
    max-width:520px;
    filter:drop-shadow(0 30px 55px rgba(34,38,43,.18));
    animation:nfFloatIn 1.1s var(--ease) both;
}
@keyframes nfFloatIn{
    from{ opacity:0; transform:translateY(24px); }
    to  { opacity:1; transform:translateY(0); }
}

/* ---------- Stats ---------- */
#nf-app .stats{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:1px;
    margin-top:76px;
    border:1px solid var(--line);
    border-radius:18px;
    background:var(--line);
    overflow:hidden;
}
#nf-app .stat{ padding:26px 18px; background:#fff; text-align:center; }
#nf-app .stat b{
    display:block;
    margin-bottom:4px;
    font-family:'Playfair Display',serif;
    font-size:1.35rem;
    font-weight:700;
}
#nf-app .stat span{
    font-size:.76rem;
    letter-spacing:.1em;
    text-transform:uppercase;
    color:var(--ink-soft);
}

/* ---------- Sections ---------- */
#nf-app .section{ padding:96px 0; background:#fff; }
#nf-app .section-head{
    max-width:700px;
    margin:0 auto 58px;
    text-align:center;
}
#nf-app .section-head h2{
    font-family:'Playfair Display',serif;
    font-weight:700;
    font-size:clamp(1.7rem,3vw,2.3rem);
}
#nf-app .section-head h2::after{
    content:'';
    display:block;
    width:44px;
    height:2px;
    margin:20px auto 0;
    border-radius:2px;
    background:var(--wood);
}
#nf-app .section-head p{
    margin-top:16px;
    font-size:1rem;
    color:var(--ink-soft);
}

/* ---------- Grids ---------- */
#nf-app .grid-2{ display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
#nf-app .grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
#nf-app .grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:22px; }

/* ---------- Cards ---------- */
#nf-app .card{
    padding:34px 30px;
    border:1px solid var(--line);
    border-radius:18px;
    background:#fff;
    transition:all .38s var(--ease);
}
#nf-app .card:hover{
    transform:translateY(-5px);
    border-color:#EADFD1;
    box-shadow:var(--shadow-md);
}
#nf-app .card-icon{
    display:flex;
    align-items:center;
    justify-content:center;
    width:46px;
    height:46px;
    margin-bottom:22px;
    border-radius:13px;
    background:var(--tint);
    color:var(--wood-dark);
}
#nf-app .card-icon svg{ width:22px; height:22px; }
#nf-app .card h3{ margin-bottom:12px; font-size:1.08rem; }
#nf-app .card p{ font-size:.92rem; line-height:1.75; color:var(--ink-soft); }

/* ---------- Panels ---------- */
#nf-app .panel{
    padding:40px 38px;
    border:1px solid var(--line);
    border-radius:20px;
    background:#fff;
    transition:all .38s var(--ease);
}
#nf-app .panel:hover{ border-color:#EADFD1; box-shadow:var(--shadow-md); }
#nf-app .panel-tag{
    display:inline-block;
    margin-bottom:18px;
    padding:5px 12px;
    border-radius:999px;
    background:var(--tint);
    font-size:.7rem;
    font-weight:600;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--wood-dark);
}
#nf-app .panel h3{ margin-bottom:12px; font-size:1.25rem; }
#nf-app .panel > p{
    margin-bottom:22px;
    font-size:.94rem;
    color:var(--ink-soft);
}
#nf-app .panel ul{ display:flex; flex-direction:column; gap:12px; }
#nf-app .panel li{
    position:relative;
    padding-left:22px;
    font-size:.9rem;
    color:var(--ink-soft);
}
#nf-app .panel li::before{
    content:'';
    position:absolute;
    left:0;
    top:.62em;
    width:6px;
    height:6px;
    border-radius:50%;
    background:var(--wood);
    opacity:.75;
}

/* ---------- Models ---------- */
#nf-app .model{
    padding:26px 24px;
    border:1px solid var(--line);
    border-radius:16px;
    background:#fff;
    transition:all .35s var(--ease);
}
#nf-app .model:hover{
    transform:translateY(-4px);
    border-color:#EADFD1;
    box-shadow:var(--shadow-sm);
}
#nf-app .model .tag{
    display:inline-block;
    margin-bottom:14px;
    padding:4px 10px;
    border-radius:999px;
    background:var(--tint);
    font-size:.66rem;
    font-weight:600;
    letter-spacing:.12em;
    text-transform:uppercase;
    color:var(--wood-dark);
}
#nf-app .model h4{ margin-bottom:10px; font-size:.98rem; word-break:break-word; }
#nf-app .model p{ font-size:.86rem; line-height:1.7; color:var(--ink-soft); }

/* ---------- Steps ---------- */
#nf-app .steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
#nf-app .step{
    padding:36px 30px;
    border:1px solid var(--line);
    border-radius:18px;
    background:#fff;
    transition:all .38s var(--ease);
}
#nf-app .step:hover{
    transform:translateY(-5px);
    border-color:#EADFD1;
    box-shadow:var(--shadow-md);
}
#nf-app .step-num{
    margin-bottom:14px;
    font-family:'Playfair Display',serif;
    font-size:2.6rem;
    font-weight:700;
    line-height:1;
    color:#EDE3D6;
}
#nf-app .step h3{ margin-bottom:10px; font-size:1.05rem; }
#nf-app .step p{ font-size:.9rem; color:var(--ink-soft); }
#nf-app .step img{ margin-top:16px; border-radius:12px; }

/* ---------- Quick start ---------- */
#nf-app .quickstart{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:26px;
    margin-top:56px;
    padding:38px 40px;
    border-radius:20px;
    background:var(--deep);
    color:#fff;
}
#nf-app .quickstart h3{
    margin-bottom:6px;
    font-family:'Playfair Display',serif;
    font-size:1.3rem;
    color:#fff;
}
#nf-app .quickstart p{ font-size:.9rem; color:rgba(255,255,255,.66); }
#nf-app .quickstart .btn-primary{ background:#fff; color:var(--deep); }
#nf-app .quickstart .btn-primary:hover{
    background:#F3EDE5;
    box-shadow:0 12px 26px rgba(0,0,0,.3);
}
#nf-app .qs-steps{
    display:flex;
    flex-wrap:wrap;
    gap:8px 20px;
    margin-top:12px;
    font-size:.82rem;
    color:rgba(255,255,255,.72);
}
#nf-app .qs-steps span{ display:flex; align-items:center; gap:8px; }
#nf-app .qs-steps span::before{
    content:'';
    width:5px;
    height:5px;
    border-radius:50%;
    background:var(--wood);
}

/* ---------- Spec table ---------- */
#nf-app .spec-table{
    width:100%;
    max-width:900px;
    margin:0 auto;
    border:1px solid var(--line);
    border-radius:18px;
    border-collapse:separate;
    border-spacing:0;
    background:#fff;
    overflow:hidden;
    table-layout:fixed;
}
#nf-app .spec-table th,
#nf-app .spec-table td{
    padding:17px 26px;
    border-bottom:1px solid var(--line-soft);
    font-size:.93rem;
    font-weight:400;
    text-align:left;
    vertical-align:top;
}
#nf-app .spec-table th{
    width:270px;
    background:#FBF9F6;
    font-size:.88rem;
    font-weight:500;
    color:var(--ink-soft);
}
#nf-app .spec-table tbody tr:last-child th,
#nf-app .spec-table tbody tr:last-child td{ border-bottom:none; }
#nf-app .spec-note{
    max-width:900px;
    margin:22px auto 0;
    text-align:center;
    font-size:.84rem;
    color:var(--ink-soft);
}
#nf-app .spec-note img{ margin:22px auto 0; border-radius:14px; }

/* ---------- Assembly ---------- */
#nf-app .assembly{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:center;
    gap:14px;
}
#nf-app .asm-item{ width:180px; text-align:center; }
#nf-app .asm-img{
    display:flex;
    align-items:center;
    justify-content:center;
    height:170px;
    margin-bottom:14px;
    padding:16px;
    border:1px solid var(--line);
    border-radius:16px;
    background:#fff;
    transition:all .35s var(--ease);
}
#nf-app .asm-img:hover{ transform:translateY(-4px); box-shadow:var(--shadow-sm); }
#nf-app .asm-img img{ max-height:135px; width:auto; }
#nf-app .asm-item p{ font-size:.86rem; line-height:1.5; color:var(--ink-soft); }
#nf-app .asm-item p a{ font-weight:500; color:var(--wood-dark); }
#nf-app .asm-item p a:hover{ text-decoration:underline; }
#nf-app .asm-op{ padding:0 4px; font-size:1.4rem; font-weight:300; color:var(--wood); }

/* ---------- FAQ ---------- */
#nf-app .faq{ max-width:860px; margin:0 auto; }
#nf-app .faq details{
    margin-bottom:12px;
    border:1px solid var(--line);
    border-radius:14px;
    background:#fff;
    overflow:hidden;
    transition:border-color .3s var(--ease);
}
#nf-app .faq details[open]{
    border-color:#EADFD1;
    box-shadow:var(--shadow-sm);
}
#nf-app .faq summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:20px 26px;
    font-size:.98rem;
    font-weight:500;
    list-style:none;
    cursor:pointer;
    transition:color .25s var(--ease);
}
#nf-app .faq summary::-webkit-details-marker{ display:none; }
#nf-app .faq summary:hover{ color:var(--wood-dark); }
#nf-app .faq summary::after{
    content:'+';
    flex:none;
    font-size:1.35rem;
    font-weight:300;
    line-height:1;
    color:var(--wood);
    transition:transform .3s var(--ease);
}
#nf-app .faq details[open] summary::after{ transform:rotate(45deg); }
#nf-app .faq .answer{
    padding:0 26px 22px;
    font-size:.92rem;
    line-height:1.75;
    color:var(--ink-soft);
}

/* ---------- Eco ---------- */
#nf-app .eco-card{
    padding:36px 30px;
    border:1px solid var(--line);
    border-radius:18px;
    background:#fff;
    text-align:center;
    transition:all .38s var(--ease);
}
#nf-app .eco-card:hover{
    transform:translateY(-5px);
    border-color:#EADFD1;
    box-shadow:var(--shadow-md);
}
#nf-app .eco-card h3{ margin-bottom:12px; font-size:1.05rem; }
#nf-app .eco-card p{ font-size:.9rem; line-height:1.75; color:var(--ink-soft); }

/* ---------- Downloads ---------- */
#nf-app .download-list{
    display:flex;
    flex-direction:column;
    gap:14px;
    max-width:820px;
    margin:0 auto;
}
#nf-app .download-link{
    display:flex;
    align-items:center;
    gap:18px;
    padding:18px 26px;
    border:1px solid var(--line);
    border-radius:14px;
    background:#fff;
    font-size:.94rem;
    font-weight:500;
    transition:all .3s var(--ease);
}
#nf-app .download-link:hover{
    transform:translateX(6px);
    border-color:var(--wood);
    color:var(--wood-dark);
    box-shadow:var(--shadow-sm);
}
#nf-app .download-icon{
    flex:none;
    padding:5px 10px;
    border-radius:8px;
    background:var(--tint);
    font-size:.7rem;
    font-weight:600;
    letter-spacing:.1em;
    color:var(--wood-dark);
}

/* ---------- Recommended ---------- */
#nf-app .product-card{
    display:flex;
    flex-direction:column;
    border:1px solid var(--line);
    border-radius:18px;
    background:#fff;
    overflow:hidden;
    transition:all .38s var(--ease);
}
#nf-app .product-card:hover{
    transform:translateY(-5px);
    border-color:#EADFD1;
    box-shadow:var(--shadow-md);
}
#nf-app .product-thumb{
    display:flex;
    align-items:center;
    justify-content:center;
    height:230px;
    padding:22px;
    border-bottom:1px solid var(--line-soft);
    background:#fff;
}
#nf-app .product-thumb img{ max-height:186px; width:auto; object-fit:contain; }
#nf-app .product-info{ padding:22px 24px 26px; }
#nf-app .product-info h3{ font-size:1rem; }
#nf-app .product-info a:hover{ color:var(--wood-dark); }

/* ---------- About / Footer ---------- */
#nf-app .about{
    padding:96px 0 88px;
    border-top:1px solid var(--line);
    background:#fff;
    text-align:center;
}
#nf-app .about-content{ max-width:740px; margin:0 auto; }
#nf-app .about-content p{
    margin-bottom:16px;
    font-size:.98rem;
    color:var(--ink-soft);
}
#nf-app .about-content a{ font-weight:500; color:var(--wood-dark); }
#nf-app .about-content a:hover{ text-decoration:underline; }
#nf-app .contact-button{
    display:inline-flex;
    align-items:center;
    gap:10px;
    margin-top:26px;
    padding:15px 38px;
    border-radius:999px;
    background:var(--deep);
    color:#fff;
    font-size:.98rem;
    font-weight:500;
    transition:all .3s var(--ease);
}
#nf-app .contact-button:hover{
    background:#101819;
    transform:translateY(-3px);
    box-shadow:0 14px 30px rgba(31,42,46,.26);
}
#nf-app .footer-bottom{
    padding:26px 0;
    border-top:1px solid var(--line);
    background:#fff;
    text-align:center;
    font-size:.8rem;
    color:var(--ink-soft);
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
    #nf-app .hero-grid{ grid-template-columns:1fr; gap:48px; text-align:center; }
    #nf-app .hero-sub{ margin:0 auto; }
    #nf-app .hero-actions,
    #nf-app .hero-points{ justify-content:center; }
    #nf-app .hero-media{ order:-1; }
    #nf-app .hero-media img{ max-width:440px; }
    #nf-app .grid-3,
    #nf-app .grid-4{ grid-template-columns:repeat(2,1fr); }
    #nf-app .steps{ grid-template-columns:1fr; }
    #nf-app .nav{ display:none; }
    #nf-app .quickstart{ justify-content:center; text-align:center; }
}

@media (max-width:768px){
    #nf-app .section{ padding:72px 0; }
    #nf-app .hero{ padding:56px 0 68px; }
    #nf-app .stats{ grid-template-columns:repeat(2,1fr); margin-top:56px; }
    #nf-app .grid-2,
    #nf-app .grid-4{ grid-template-columns:1fr; }
    #nf-app .panel{ padding:32px 26px; }
    #nf-app .card{ padding:28px 24px; }
    #nf-app .quickstart{ padding:32px 26px; }
    #nf-app .asm-item{ width:44%; }
    #nf-app .asm-op{ display:none; }

    /* Spec table stacks */
    #nf-app .spec-table,
    #nf-app .spec-table tbody,
    #nf-app .spec-table tr,
    #nf-app .spec-table th,
    #nf-app .spec-table td{ display:block; width:auto; }
    #nf-app .spec-table tr{ border-bottom:1px solid var(--line-soft); }
    #nf-app .spec-table tr:last-child{ border-bottom:none; }
    #nf-app .spec-table th,
    #nf-app .spec-table td{ border-bottom:none; }
    #nf-app .spec-table th{ padding:18px 22px 0; background:transparent; }
    #nf-app .spec-table td{ padding:2px 22px 18px; }
}

@media (max-width:520px){
    #nf-app .container{ padding:0 18px; }
    #nf-app .header-inner{ height:62px; }
    #nf-app .brand em{ display:none; }
    #nf-app .header-inner .btn{ padding:10px 18px; font-size:.82rem; }
    #nf-app .hero h1{ font-size:1.9rem; }
    #nf-app .grid-3{ grid-template-columns:1fr; }
    #nf-app .asm-item{ width:100%; }
    #nf-app .download-link{ padding:16px 18px; gap:12px; }
}