/* Shared pieces: simulated Telegram sheet, demo panel, toast. Variants set --nb-ac / --nb-fg / --nb-bg. */
.nb-tg{position:fixed;inset:0;z-index:90;pointer-events:none;visibility:hidden;transition:visibility 0s .42s}
.nb-tg.on{pointer-events:auto;visibility:visible;transition:none}
.nb-tg-scrim{position:absolute;inset:0;background:rgba(0,0,0,.55);opacity:0;transition:opacity .35s;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
.nb-tg.on .nb-tg-scrim{opacity:1}
.nb-tg-panel{position:absolute;left:0;right:0;bottom:0;margin:0 auto;max-width:520px;background:#17212b;color:#f5f5f5;border-radius:22px 22px 0 0;padding:6px 0 calc(16px + env(safe-area-inset-bottom));transform:translate3d(0,105%,0);transition:transform .42s cubic-bezier(.2,.9,.2,1);font:15px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;box-shadow:0 -20px 60px rgba(0,0,0,.5)}
.nb-tg.on .nb-tg-panel{transform:none}
@media(min-width:700px){.nb-tg-panel{bottom:50%;border-radius:22px;transform:translate3d(0,calc(50% + 40px),0) scale(.96);opacity:0;transition:transform .4s cubic-bezier(.2,.9,.2,1),opacity .3s;padding-bottom:16px}.nb-tg.on .nb-tg-panel{transform:translate3d(0,50%,0);opacity:1}}
.nb-tg-grab{width:38px;height:5px;border-radius:3px;background:#3a4a5a;margin:4px auto 8px}
.nb-tg-head{display:flex;align-items:center;gap:10px;padding:4px 14px 12px;border-bottom:1px solid #0e1621}
.nb-tg-back{appearance:none;border:0;background:none;color:#6ab3f3;width:40px;height:40px;display:grid;place-items:center;margin-left:-8px;border-radius:50%;cursor:pointer}
.nb-tg-ava{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:700;background:linear-gradient(135deg,#ddd4be,#83bdb5);color:#101416;flex:none}
.nb-tg-who{display:flex;flex-direction:column;min-width:0;flex:1}.nb-tg-who b{font-weight:600}.nb-tg-who small{color:#7d8b99;font-size:13px}
.nb-tg-tag{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:#7d8b99;border:1px solid #2b3a49;border-radius:6px;padding:3px 6px;white-space:nowrap}
.nb-tg-chat{padding:16px 12px 4px;background:#0e1621 radial-gradient(circle at 20% 10%,#16243388,transparent 60%)}
.nb-tg-msg{background:#182533;border-radius:16px 16px 16px 4px;padding:10px 12px 18px;position:relative;max-width:92%;animation:nbmsg .5s cubic-bezier(.2,.9,.2,1) .15s both}
.nb-tg-msg p{margin:0;white-space:pre-line}
.nb-tg-time{position:absolute;right:10px;bottom:4px;font-size:11px;color:#6d7f8f}
.nb-tg-kb{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin:6px 0 10px;max-width:92%}
.nb-tg-btn{appearance:none;border:0;border-radius:10px;padding:12px 8px;min-height:46px;background:#2b5278;color:#fff;font:inherit;font-weight:600;cursor:pointer;animation:nbmsg .5s cubic-bezier(.2,.9,.2,1) .3s both;-webkit-tap-highlight-color:transparent;transition:transform .12s,background .2s}
.nb-tg-btn+.nb-tg-btn{background:#1f2f3f;color:#c8d3dd}
.nb-tg-btn:active{transform:scale(.96)}
.nb-tg-btn:focus-visible,.nb-tg-back:focus-visible{outline:2px solid #6ab3f3;outline-offset:2px}
@keyframes nbmsg{from{opacity:0;transform:translate3d(0,12px,0) scale(.98)}}
html.nb-tg-open,html.nb-tg-open body{overflow:hidden}

.nb-toast{position:fixed;left:50%;top:calc(14px + env(safe-area-inset-top));z-index:95;transform:translate3d(-50%,-140%,0);max-width:min(92vw,460px);padding:11px 16px;border-radius:14px;background:rgba(14,18,20,.92);color:#f3f3f1;font:600 14px/1.35 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;box-shadow:0 10px 40px rgba(0,0,0,.45),inset 0 0 0 1px rgba(255,255,255,.08);transition:transform .45s cubic-bezier(.2,.9,.2,1);pointer-events:none;text-align:center}
.nb-toast.on{transform:translate3d(-50%,0,0)}

.nb-demo{position:fixed;z-index:80;right:calc(12px + env(safe-area-inset-right));bottom:calc(12px + env(safe-area-inset-bottom));font:13px/1.35 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:#eef}
.nb-demo-fab{appearance:none;display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 13px;border-radius:18px;border:1px solid rgba(255,255,255,.18);background:rgba(10,12,14,.72);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#eef;font:700 11px/1 ui-monospace,Menlo,Consolas,monospace;letter-spacing:.14em;text-transform:uppercase;cursor:pointer}
.nb-demo-dot{width:7px;height:7px;border-radius:50%;background:#83bdb5;box-shadow:0 0 8px #83bdb5}
.nb-demo.armed .nb-demo-dot{background:#ff5d6c;box-shadow:0 0 8px #ff5d6c}
.nb-demo-panel{position:absolute;right:0;bottom:46px;width:min(330px,calc(100vw - 24px));padding:14px;border-radius:18px;background:rgba(12,15,17,.96);border:1px solid rgba(255,255,255,.12);box-shadow:0 20px 60px rgba(0,0,0,.55);animation:nbmsg .3s cubic-bezier(.2,.9,.2,1)}
.nb-demo-panel[hidden]{display:none}
.nb-demo-top{display:flex;justify-content:space-between;align-items:center}
.nb-demo-x{appearance:none;border:0;background:none;color:#aab;font-size:22px;width:36px;height:36px;cursor:pointer}
.nb-demo-note{margin:2px 0 10px;color:#9aa3a8;font-size:12px}
.nb-demo-l{margin:10px 0 6px;color:#9aa3a8;font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.nb-demo-seg{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;border-radius:12px;background:rgba(255,255,255,.06)}
.nb-demo-seg button,.nb-demo-chips button{appearance:none;border:0;border-radius:9px;min-height:36px;padding:6px 8px;background:none;color:#cfd6d9;font:inherit;cursor:pointer}
.nb-demo-seg button.on{background:#ddd4be;color:#111}
.nb-demo-chips{display:flex;flex-wrap:wrap;gap:6px}
.nb-demo-chips button{border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:6px 11px;min-height:34px}
.nb-demo-chips button.on{border-color:#ff8a94;color:#ffb3b9;background:rgba(255,93,108,.12)}
.nb-demo-chips button[data-arm=""].on{border-color:#83bdb5;color:#bfe;background:rgba(131,189,181,.12)}
.nb-demo-row{display:flex;gap:8px;margin-top:14px}
.nb-demo-btn{appearance:none;flex:1;border:0;border-radius:12px;min-height:42px;background:#ff5d6c;color:#fff;font:inherit;font-weight:700;cursor:pointer}
.nb-demo-btn.ghost{background:rgba(255,255,255,.08);color:#dfe5e8}
@media (prefers-reduced-motion:reduce){.nb-tg-panel,.nb-tg-scrim,.nb-toast{transition:none}.nb-tg-msg,.nb-tg-btn,.nb-demo-panel{animation:none}}

/* ---------- inside Telegram without a link bridge: a way out ---------- */
.nb-tgfb{position:fixed;inset:0;z-index:93;display:flex;align-items:flex-end;justify-content:center;visibility:hidden;pointer-events:none}
.nb-tgfb.on{visibility:visible;pointer-events:auto}
.nb-tgfb-scrim{position:absolute;inset:0;background:rgba(4,6,7,.66);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);opacity:0;transition:opacity .3s}
.nb-tgfb.on .nb-tgfb-scrim{opacity:1}
.nb-tgfb-panel{position:relative;width:100%;max-width:520px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:26px 18px calc(18px + env(safe-area-inset-bottom));border-radius:26px 26px 0 0;background:linear-gradient(170deg,rgba(28,34,36,.98),rgba(10,13,14,.99));border:1px solid rgba(221,212,190,.22);border-bottom:0;color:#f3f3f1;font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;transform:translate3d(0,104%,0);transition:transform .4s cubic-bezier(.2,.9,.2,1)}
.nb-tgfb.on .nb-tgfb-panel{transform:none}
@media(min-width:700px){.nb-tgfb{align-items:center}.nb-tgfb-panel{border-radius:26px;border-bottom:1px solid rgba(221,212,190,.22)}}
.nb-tgfb-ico{width:62px;height:62px;border-radius:20px;display:grid;place-items:center;color:rgb(var(--ac2,242 231 203));background:rgba(221,212,190,.08);border:1px solid rgba(221,212,190,.3);margin-bottom:4px}
.nb-tgfb h2{margin:0;font-size:21px;line-height:1.25;letter-spacing:-.02em}
.nb-tgfb p{margin:0 0 6px;color:#c0c5c7;max-width:400px}
.nb-tgfb-btn{appearance:none;width:100%;min-height:52px;border-radius:16px;border:1px solid rgb(var(--ac2,242 231 203)/.6);background:linear-gradient(120deg,rgb(var(--ac2,242 231 203)),rgb(var(--ac,221 212 190)));color:#101416;font:inherit;font-weight:800;cursor:pointer}
.nb-tgfb-btn.ghost{background:rgba(255,255,255,.04);color:#f3f3f1;border-color:rgba(221,212,190,.25);font-weight:600;min-height:48px}
.nb-tgfb-btn:focus-visible{outline:2px solid rgb(var(--ac2,242 231 203));outline-offset:3px}
@media (prefers-reduced-motion:reduce){.nb-tgfb-panel,.nb-tgfb-scrim{transition:none}}
.nb-tgfb a.nb-tgfb-btn{display:flex;align-items:center;justify-content:center;text-decoration:none;min-height:58px;font-size:17px}
.nb-tgfb-alt{margin:10px 0 0!important;font-size:13.5px;color:#9aa1a4!important}
.nb-tgfb-x{appearance:none;border:0;background:none;color:#9aa1a4;font:inherit;font-size:14px;min-height:44px;padding:0 14px;cursor:pointer}
.nb-tgfb-note{display:none;width:100%;padding:14px;border-radius:16px;border:1px solid rgba(131,189,181,.45);background:rgba(131,189,181,.08);text-align:left}
.nb-tgfb-note p{margin:0 0 10px!important;color:#e6e9ea!important;font-size:14.5px}
.nb-tgfb.create .nb-tgfb-note{display:block}
.nb-tgfb.create .nb-tgfb-panel{gap:10px}
.nb-tgfb-note .nb-tgfb-btn{display:flex;align-items:center;justify-content:center;text-decoration:none}