/* Chat is above the existing fixed navigation (100); its own layers are isolated. */
.ns-chat:not(.is-open){background:linear-gradient(155deg,#3e5190,#27376d);border-color:#7584bb;box-shadow:inset 0 1px #ffffff40,0 14px 28px -10px #18285280,0 0 18px #526bc13d}
.ns-chat.ns-chat:not(.is-open):hover,.ns-chat.ns-chat:not(.is-open):focus-within{border-color:#a2b0ed;box-shadow:inset 0 1px #ffffff70,0 18px 34px -8px #182852a0,0 0 18px #7290ff90,0 0 44px #607de975}
.ns-chat:not(.is-open) .ns-chat-launcher{color:#fbfaf7}
.ns-chat{--chat-base:#242424;--chat-ink:#fbfaf7;--chat-muted:#c4bdb2;--chat-line:#514b42;--chat-inset:#1e1d1a;--chat-accent:var(--orange);position:fixed;right:max(32px,env(safe-area-inset-right));bottom:calc(max(32px,env(safe-area-inset-bottom)) + var(--keyboard-offset,0px));width:205px;height:60px;border-radius:30px;background:linear-gradient(165deg,#ffb43e,var(--chat-accent));border:1px solid #e49222;box-shadow:inset 0 1px #ffffff70,0 16px 25px -14px #241e2370,0 3px 7px #241e2326;overflow:hidden;isolation:isolate;z-index:120;font-family:'DM Sans',Arial,sans-serif;color:var(--chat-ink);transition:box-shadow .55s,border-color .55s,border-radius .95s cubic-bezier(.22,1,.36,1);color-scheme:dark}
.ns-chat:not(.is-open):hover,.ns-chat:not(.is-open):focus-within{box-shadow:inset 0 1px #ffffff70,0 18px 28px -12px #241e2380,0 0 24px #fe930640}
.ns-chat.is-open{width:var(--chat-width,380px);height:var(--chat-height,540px);border-radius:24px;border-color:#5b554d;box-shadow:inset 0 2px #ffffff24,0 26px 46px -23px #241e2390,0 5px 14px #241e2330}
.ns-chat-dot{position:absolute;right:-6px;bottom:-6px;width:12px;height:12px;border-radius:50%;background:var(--chat-base);transform:scale(1);opacity:0;pointer-events:none;z-index:-1}
.ns-chat button,.ns-chat a{touch-action:manipulation}.ns-chat-launcher{position:absolute;inset:0;width:100%;height:60px;background:none;border:0;color:var(--ink);display:flex;align-items:center;justify-content:center;gap:12px;padding:0 22px;white-space:nowrap;font-size:14px;transition:opacity .2s,transform .45s}.ns-chat.is-open .ns-chat-launcher{opacity:0;transform:translateY(8px);pointer-events:none}
.ns-chat-content{position:absolute;inset:0;width:calc(var(--chat-width,380px) - 2px);display:flex;flex-direction:column;opacity:0;visibility:hidden;transition:opacity .18s,visibility 0s .3s}.ns-chat.is-open .ns-chat-content{opacity:1;visibility:visible;transition:opacity .35s .26s,visibility 0s}
.ns-chat-piece{opacity:0;transform:translateY(16px) scale(.98);transform-origin:bottom left;transition:opacity .18s,transform .26s}.ns-chat.is-open .ns-chat-piece{opacity:1;transform:none;transition:opacity .55s calc(var(--delay) + .25s),transform .7s cubic-bezier(.16,1,.3,1) calc(var(--delay) + .25s)}
.ns-chat-head{padding:16px 20px;display:flex;align-items:center;gap:12px;border-bottom:1px solid #ffffff18;--delay:.25s}.ns-chat-head img{width:48px;height:48px;object-fit:contain;border:1px solid #e4ded5;border-radius:10px;box-shadow:inset 0 1px white,0 4px 7px -5px #241e2350}.ns-chat-head strong{font-size:14px;font-weight:500;display:block;line-height:1.4}.ns-chat-head small{display:block;font-size:10px;color:var(--chat-muted);margin-top:3px}
.ns-chat-close{margin-left:auto;align-self:flex-start;width:44px;height:44px;flex-shrink:0;display:grid;place-items:center;border:1px solid #565046;border-radius:50%;background:linear-gradient(#403d37,#302d28);color:var(--chat-ink);box-shadow:inset 0 1px #ffffff14,0 3px 5px -4px #0009;transition:border-color .4s,box-shadow .4s}
.ns-chat-messages{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;padding:24px 20px;scrollbar-width:thin;scrollbar-color:#766044 #1b1a18;scrollbar-gutter:stable;color-scheme:dark}
.ns-chat-messages::-webkit-scrollbar{width:8px}.ns-chat-messages::-webkit-scrollbar-track{background:#1b1a18;border-radius:12px;box-shadow:inset 0 2px 4px #0006}.ns-chat-messages::-webkit-scrollbar-thumb{background:linear-gradient(#80613c,#5b4b36);border:2px solid #1b1a18;border-radius:12px}.ns-chat-messages::-webkit-scrollbar-thumb:hover{background:#b37a31}
.ns-chat-welcome{--delay:.4s;font-size:26px;line-height:1.2;letter-spacing:-.045em;margin:0 0 20px;font-weight:400;text-wrap:initial}.ns-chat-welcome em{font-family:Georgia,serif;font-weight:400;color:#ffad35;line-height:1.2;display:inline-block;padding-bottom:3px}
.ns-chat-bubble{font-size:13px;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere;background:linear-gradient(165deg,var(--chat-inset),#282620);border:1px solid #191816;border-bottom-color:#4c463d;border-top-color:#151412;color:#f3eee6;box-shadow:inset 0 3px 6px #0007,inset 0 -1px #ffffff0a;border-radius:14px;padding:15px 16px;--delay:.51s;max-width:95%;margin-bottom:18px}.ns-chat-bubble p{color:inherit;font-size:inherit;margin:0;white-space:pre-wrap}.ns-chat-bubble p+p{margin-top:10px}.ns-chat-bubble ul{margin:10px 0;padding-left:18px;white-space:normal}.ns-chat-bubble li+li{margin-top:8px}.ns-chat-bubble.user{margin-left:auto;background:linear-gradient(165deg,#2c2419,#3a2c19);border-color:#241c12;border-bottom-color:#68502e;box-shadow:inset 0 3px 6px #0006,inset 0 -1px #ffffff0a}
.ns-chat-suggestions{display:flex;flex-direction:column;gap:8px;--delay:.65s}.ns-chat-suggestions button,.ns-chat-links a,.ns-chat-retry{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;padding:9px 10px 9px 14px;text-align:left;border:1px solid var(--chat-line);border-radius:12px;background:linear-gradient(#3c3933,#302e29);color:#f3eee6;box-shadow:inset 0 1px #ffffff20,0 7px 10px -7px #000b,0 2px 4px #0003;font-size:12px;line-height:1.5;transition:border-color .4s,box-shadow .5s,transform .4s}
.ns-chat-action{display:grid;place-items:center;flex-shrink:0;width:25px;height:25px;border-radius:50%;background:linear-gradient(#ffb13c,var(--chat-accent));color:var(--ink);box-shadow:inset 0 1px #ffffff60,0 3px 5px -3px #0009}
.ns-chat-form{margin:0 16px;display:flex;align-items:center;padding:8px 8px 8px 14px;gap:10px;background:#1b1a18;border:1px solid #3c3934;border-radius:15px;box-shadow:inset 0 3px 5px #0007,inset 0 -1px #ffffff0b;--delay:.75s}.ns-chat-form input{min-width:0;flex:1;width:100%;height:44px;border:0;background:none;font:16px/1.4 'DM Sans',Arial,sans-serif;color:var(--chat-ink);padding:8px 0}.ns-chat-form input::placeholder{color:#b8aea0}
.ns-chat-send{flex-shrink:0;width:44px;height:44px;display:grid;place-items:center;border-radius:50%;border:1px solid #e88c16;background:linear-gradient(#ffb13c,var(--chat-accent));box-shadow:inset 0 1px #ffffff70,0 6px 10px -6px #8b4b0070,0 2px 3px #8b4b0020;color:var(--ink);transition:box-shadow .5s,transform .4s}
.ns-chat-footnote{margin:0;padding:10px 16px 13px;text-align:center;font-size:10px;line-height:1.5;color:var(--chat-muted);--delay:.81s}.ns-chat-sources{display:block;color:var(--chat-muted);font-size:10px;margin-top:10px}.ns-chat-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;white-space:normal}.ns-chat-links a{font-size:11px;padding:8px 12px;text-decoration:none;gap:8px}.ns-chat-retry{margin-top:12px}
.ns-chat-reply{animation:ns-chat-reply .55s cubic-bezier(.16,1,.3,1)}@keyframes ns-chat-reply{from{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:none}}
.ns-chat button:disabled{opacity:.55;cursor:default}.ns-chat :focus-visible{outline:3px solid #ffad35;outline-offset:3px}.ns-chat-sr{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(hover:hover){.ns-chat-suggestions button:hover,.ns-chat-links a:hover,.ns-chat-retry:not(:disabled):hover,.ns-chat-close:hover{border-color:#bc863b;box-shadow:inset 0 1px #ffffff26,0 8px 12px -7px #000b,0 0 16px #fe930628}.ns-chat-send:not(:disabled):hover{transform:translateY(-2px);box-shadow:inset 0 1px #ffffff80,0 8px 12px -6px #8b4b0070,0 0 18px #fe930650}}
.ns-chat button:not(:disabled):active{transform:translateY(1px)}
@media(max-width:600px){.ns-chat{right:max(16px,env(safe-area-inset-right));bottom:calc(max(16px,env(safe-area-inset-bottom)) + var(--keyboard-offset,0px))}.ns-chat-head{padding:12px 16px}.ns-chat-messages{padding:20px 16px}.ns-chat-bubble{font-size:14px}.ns-chat-suggestions button{font-size:13px}footer{padding-bottom:104px}}
@media(prefers-reduced-motion:reduce){.ns-chat,.ns-chat *{animation:none!important;transition:none!important;transform:none!important}.ns-chat-dot{transform:scale(125)!important}.ns-chat:not(.is-open) .ns-chat-dot{opacity:0!important}}
@media(forced-colors:active){.ns-chat-dot{display:none}.ns-chat{background:Canvas;color:CanvasText}.ns-chat-launcher,.ns-chat-content,.ns-chat-bubble{color:CanvasText}.ns-chat.is-open{background:Canvas}}

/* Flat surfaces, consistent top light and lower shade. Keep blue during the reveal. */
.ns-chat.ns-chat{background:#2c3d75;border-color:#4b5c92;box-shadow:inset 0 1px #ffffff35,inset 0 -1px #0005,0 8px 18px -8px #121b3b80}
.ns-chat.ns-chat:not(.is-open):hover,.ns-chat.ns-chat:not(.is-open):focus-within{border-color:#7283b9;box-shadow:inset 0 1px #ffffff50,inset 0 -1px #0005,0 8px 20px -8px #121b3b90,0 0 22px #6482d560}
.ns-chat.ns-chat.is-open{border-color:#56524c;box-shadow:inset 0 1px #ffffff28,inset 0 -1px #0007,0 16px 32px -16px #0008}
.ns-chat-bubble{background:#211f1b}
.ns-chat-bubble.user{background:#30271c}
.ns-chat-close,.ns-chat-suggestions button,.ns-chat-links a,.ns-chat-retry{background:#34312c;box-shadow:inset 0 1px #ffffff20,inset 0 -1px #0006,0 3px 5px -3px #0008}
.ns-chat-action,.ns-chat-send{background:#fe9306;box-shadow:inset 0 1px #ffffff40,inset 0 -1px #0005,0 3px 5px -3px #0008}