.nt-hub{max-width:1180px;margin:0 auto;padding:32px 20px 72px}
.nt-hero{border:1px solid var(--color-border,#e5e7eb);border-radius:28px;padding:40px 32px;background:linear-gradient(135deg,#0f172a,#2563eb 58%,#14b8a6);color:#fff;box-shadow:0 24px 60px rgba(15,23,42,.16)}
.nt-hero.purple{background:linear-gradient(135deg,#111827,#7c3aed 58%,#ec4899)}
.nt-hero.green{background:linear-gradient(135deg,#052e16,#059669 58%,#06b6d4)}
.nt-hero.orange{background:linear-gradient(135deg,#431407,#ea580c 58%,#f59e0b)}
.nt-hero h1{font-size:clamp(2rem,4vw,3.25rem);line-height:1.08;letter-spacing:-.045em;margin:0 0 12px;font-weight:900}
.nt-hero p{font-size:1.06rem;line-height:1.72;color:rgba(255,255,255,.94);max-width:780px;margin:0;text-shadow:0 1px 2px rgba(15,23,42,.22)}
.nt-section{margin-top:30px}
.nt-section h2{font-size:1.42rem;letter-spacing:-.03em;margin:0 0 14px}
.nt-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.nt-card,.nt-panel{border:1px solid #e5e7eb;border-radius:22px;background:#fff;padding:20px;box-shadow:0 8px 28px rgba(15,23,42,.06)}
.nt-card{text-decoration:none;color:inherit;display:flex;flex-direction:column;gap:10px;transition:.18s ease}
.nt-card:hover{transform:translateY(-2px);border-color:#60a5fa;box-shadow:0 18px 42px rgba(37,99,235,.13)}
.nt-pill{display:inline-flex;width:max-content;padding:5px 10px;border-radius:999px;background:#eff6ff;color:#1d4ed8;font-size:.78rem;font-weight:850}
.nt-badge{display:inline-flex;width:max-content;margin-top:auto;padding:5px 10px;border-radius:999px;background:#eff6ff;color:#1d4ed8;font-size:.78rem;font-weight:850}
.nt-card h3{font-size:1.12rem;margin:0;letter-spacing:-.02em}
.nt-card p,.nt-panel p{color:#64748b;line-height:1.58;margin:0}
.nt-form{display:grid;gap:12px}
.nt-label{font-weight:850;color:#334155}
.nt-input,.nt-textarea,.nt-select{width:100%;border:1px solid #e2e8f0;border-radius:14px;padding:12px 14px;font-size:1rem;background:#fff;color:#111827}
.nt-textarea{min-height:120px;resize:vertical}
.nt-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:14px;border:1px solid #2563eb;background:#2563eb;color:#fff;font-weight:850;cursor:pointer;text-decoration:none}
.nt-btn.secondary{background:#f8fafc;color:#334155;border-color:#e2e8f0}
.nt-output{white-space:pre-wrap;word-break:break-word;background:#0f172a;color:#dbeafe;border-radius:16px;padding:16px;overflow:auto;line-height:1.55}
.nt-two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px}
.nt-list{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.nt-list li{display:flex;gap:10px;color:#64748b;line-height:1.55}
.nt-list li:before{content:"";width:8px;height:8px;border-radius:999px;background:#2563eb;margin-top:8px;flex:0 0 auto}
.nt-dropzone{display:grid;place-items:center;gap:12px;min-height:190px;border:2px dashed #bfdbfe;border-radius:22px;background:linear-gradient(135deg,#eff6ff,#f8fafc);color:#1e3a8a;text-align:center;padding:24px;cursor:pointer;transition:border-color .18s ease,background .18s ease,transform .18s ease}
.nt-dropzone:hover,.nt-dropzone.is-dragover{border-color:#2563eb;background:linear-gradient(135deg,#dbeafe,#eff6ff);transform:translateY(-1px)}
.nt-dropzone strong{font-size:1.05rem;color:#1d4ed8}
.nt-dropzone span{color:#475569;line-height:1.55}
.nt-file-input{position:absolute;inline-size:1px;block-size:1px;opacity:0;pointer-events:none}
.nt-preview-output{background:#f8fafc!important;color:#111827!important;border:1px solid #e2e8f0}
#serpUrl{color:#15803d!important}
@media(max-width:860px){.nt-hub{padding:20px 14px 56px}.nt-hero{padding:30px 22px;border-radius:22px}.nt-two{grid-template-columns:1fr}.nt-btn{width:100%}}
@media(prefers-reduced-motion:reduce){.nt-card{transition:none}.nt-card:hover{transform:none}}
[data-theme='dark'] .nt-card,[data-theme='dark'] .nt-panel{background:#18181b;border-color:#27272a;box-shadow:0 8px 28px rgba(0,0,0,.24)}
[data-theme='dark'] .nt-card h3,[data-theme='dark'] .nt-panel h2,[data-theme='dark'] .nt-label{color:#f4f4f5}
[data-theme='dark'] .nt-card p,[data-theme='dark'] .nt-panel p,[data-theme='dark'] .nt-list li{color:#d4d4d8}
[data-theme='dark'] .nt-input,[data-theme='dark'] .nt-textarea,[data-theme='dark'] .nt-select{background:#09090b;border-color:#3f3f46;color:#f4f4f5}
[data-theme='dark'] .nt-output{background:#09090b;color:#dbeafe;border:1px solid #27272a}
[data-theme='dark'] .nt-preview-output{background:#09090b!important;color:#f4f4f5!important;border-color:#27272a!important}
[data-theme='dark'] .nt-pill,[data-theme='dark'] .nt-badge{background:#1e3a8a;color:#bfdbfe}
[data-theme='dark'] .nt-btn.secondary{background:#27272a;color:#f4f4f5;border-color:#3f3f46}
[data-theme='dark'] .nt-dropzone{background:linear-gradient(135deg,#111827,#18181b);border-color:#3b82f6;color:#dbeafe}
[data-theme='dark'] .nt-dropzone:hover,[data-theme='dark'] .nt-dropzone.is-dragover{background:linear-gradient(135deg,#172554,#111827);border-color:#60a5fa}
[data-theme='dark'] .nt-dropzone strong{color:#bfdbfe}
[data-theme='dark'] .nt-dropzone span{color:#d4d4d8}
[data-theme='dark'] #serpUrl{color:#86efac!important}
[data-theme='dark'] #serpTitle{color:#93c5fd!important}
[data-theme='dark'] #serpDesc,[data-theme='dark'] #csvPreview{color:#f4f4f5!important}