/* Nova Digital — интерактивные блоки */
.nd-ix{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:22px 22px 20px;margin:30px 0}
.nd-ix__head{margin-bottom:16px}
.nd-ix__kicker{display:inline-block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;font-weight:700;color:var(--accent);background:#eef2fe;border-radius:999px;padding:5px 11px;margin-bottom:10px}
.nd-ix__title{margin:6px 0 6px;font-size:22px;line-height:1.25}
.nd-ix__intro{margin:0;color:var(--ink-2);font-size:15.5px;line-height:1.55}
.nd-ix__note{margin:14px 0 0;font-size:13.5px;color:var(--muted);line-height:1.5}
.nd-ix__hint{margin:10px 0 0;font-size:14px;color:#a23b2e}
.nd-ix__actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.nd-btn{appearance:none;border:0;cursor:pointer;font:inherit;font-weight:600;font-size:15px;color:#fff;background:var(--accent);border-radius:10px;padding:11px 18px;transition:background .15s}
.nd-btn:hover{background:var(--accent-2)}
.nd-btn--ghost{background:transparent;color:var(--ink-2);border:1px solid var(--line)}
.nd-btn--ghost:hover{background:var(--bg-2);color:var(--ink)}

/* квиз */
.nd-quiz__list{list-style:none;margin:0;padding:0;counter-reset:ndq}
.nd-quiz__q{margin:0 0 18px;padding:0}
.nd-quiz__q:before{counter-increment:ndq;content:counter(ndq);display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:7px;background:var(--bg-2);color:var(--ink-2);font-size:13px;font-weight:700;margin-bottom:8px}
.nd-quiz__qt{margin:0 0 10px;font-weight:600;line-height:1.4}
.nd-quiz__opts{display:grid;gap:8px}
.nd-quiz__opt{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:10px;padding:10px 12px;cursor:pointer;line-height:1.45;font-size:15.5px;transition:border-color .15s,background .15s}
.nd-quiz__opt:hover{border-color:#c9d3ea;background:#fbfcfe}
.nd-quiz__opt input{margin:3px 0 0;accent-color:var(--accent);flex:0 0 auto}
.nd-quiz__opt:has(input:checked){border-color:var(--accent);background:#f4f7ff}
.nd-quiz__res{margin-top:18px}
.nd-quiz__card{border:1px solid var(--accent);border-radius:12px;background:#f4f7ff;padding:16px 18px}
.nd-quiz__card h4{margin:8px 0 8px;font-size:19px}
.nd-quiz__card p{margin:0 0 10px;line-height:1.55}
.nd-quiz__card ul{margin:0;padding-left:20px}
.nd-quiz__card li{margin:4px 0;line-height:1.5}
.nd-quiz__badge{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}

/* чек-лист */
.nd-check__meter{display:flex;align-items:center;gap:12px;margin:0 0 16px}
.nd-check__bar{flex:1;height:8px;border-radius:999px;background:var(--bg-2);overflow:hidden}
.nd-check__bar i{display:block;height:100%;background:var(--accent);border-radius:999px;transition:width .2s}
.nd-check__num{font-size:13.5px;color:var(--muted);white-space:nowrap}
.nd-check__group{margin:0 0 14px}
.nd-check__gt{margin:14px 0 8px;font-size:15px;letter-spacing:.02em;text-transform:uppercase;color:var(--muted)}
.nd-check__item{display:flex;gap:11px;align-items:flex-start;padding:9px 10px;border-radius:10px;cursor:pointer;transition:background .15s}
.nd-check__item:hover{background:var(--bg-2)}
.nd-check__item input{position:absolute;opacity:0;width:0;height:0}
.nd-check__box{flex:0 0 20px;width:20px;height:20px;margin-top:2px;border:2px solid #cfd6e4;border-radius:6px;position:relative;transition:border-color .15s,background .15s}
.nd-check__item input:checked+.nd-check__box{background:var(--accent);border-color:var(--accent)}
.nd-check__item input:checked+.nd-check__box:after{content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;border:solid #fff;border-width:0 2.5px 2.5px 0;transform:rotate(45deg)}
.nd-check__item input:focus-visible+.nd-check__box{outline:2px solid var(--accent);outline-offset:2px}
.nd-check__text{line-height:1.5}
.nd-check__text b{display:block;font-weight:600;font-size:15.5px}
.nd-check__text em{display:block;font-style:normal;font-size:14px;color:var(--muted);margin-top:2px}
.nd-check__item input:checked~.nd-check__text b{color:var(--muted);text-decoration:line-through}

/* калькулятор */
.nd-calc__fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.nd-calc__field{display:block}
.nd-calc__label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.nd-calc__field select{width:100%;font:inherit;font-size:15px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
.nd-calc__field select:focus{outline:2px solid var(--accent);outline-offset:1px}
.nd-calc__addons{margin-top:16px}
.nd-calc__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:8px}
.nd-calc__check{display:flex;gap:9px;align-items:flex-start;border:1px solid var(--line);border-radius:10px;padding:9px 11px;cursor:pointer;font-size:15px;line-height:1.4}
.nd-calc__check:hover{background:#fbfcfe}
.nd-calc__check input{margin:2px 0 0;accent-color:var(--accent)}
.nd-calc__check:has(input:checked){border-color:var(--accent);background:#f4f7ff}
.nd-calc__out{margin-top:18px;border-top:1px solid var(--line);padding-top:16px}
.nd-calc__outlabel{display:block;font-size:13.5px;color:var(--muted);margin-bottom:4px}
.nd-calc__out strong{display:block;font-size:27px;line-height:1.2;color:var(--ink)}
.nd-calc__local{display:block;font-size:15px;color:var(--ink-2);margin-top:4px}
.nd-calc__parts{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:5px}
.nd-calc__parts li{display:flex;justify-content:space-between;gap:14px;font-size:14px;color:var(--ink-2);border-bottom:1px dashed var(--line);padding-bottom:5px}
.nd-calc__parts li span:last-child{color:var(--muted);white-space:nowrap}

/* FAQ */
.nd-faq__item{border:1px solid var(--line);border-radius:10px;margin:0 0 8px;background:#fff}
.nd-faq__item summary{cursor:pointer;list-style:none;padding:13px 44px 13px 15px;font-weight:600;font-size:16px;line-height:1.4;position:relative}
.nd-faq__item summary::-webkit-details-marker{display:none}
.nd-faq__item summary:after{content:"";position:absolute;right:17px;top:19px;width:9px;height:9px;border:solid var(--muted);border-width:0 2px 2px 0;transform:rotate(45deg);transition:transform .15s}
.nd-faq__item[open] summary:after{transform:rotate(-135deg);top:23px}
.nd-faq__item[open] summary{color:var(--accent)}
.nd-faq__a{padding:0 15px 13px}
.nd-faq__a p{margin:0 0 9px;line-height:1.6}
.nd-faq__a p:last-child{margin-bottom:0}

@media (max-width:640px){
.nd-ix{padding:18px 15px 16px}
.nd-ix__title{font-size:20px}
.nd-calc__fields,.nd-calc__grid{grid-template-columns:1fr}
.nd-calc__out strong{font-size:23px}
}