:root{--bg:#f7f5f0;--card:#fff;--ink:#14213d;--mut:#5b6475;--gold:#b8892b;--line:#e3ddd0;--navy:#0b1730}
@media(prefers-color-scheme:dark){:root{--bg:#0b1220;--card:#111b30;--ink:#eef1f7;--mut:#a3adc2;--gold:#d9a845;--line:#22304d}}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:70px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 Inter,"Hind Siliguri",system-ui,sans-serif;overflow-x:hidden}
body.bn{font-family:"Hind Siliguri",Inter,sans-serif}
h1,h2,h3{font-family:"Cormorant Garamond","Hind Siliguri",serif;margin:0 0 .4em;line-height:1.15}
h2{font-size:2.2rem}.wrap{max-width:1080px;margin:auto;padding:0 20px}
button,.btn{font:inherit;cursor:pointer;border:1px solid var(--gold);background:var(--gold);color:#111;padding:9px 18px;border-radius:999px;font-weight:600;text-decoration:none;display:inline-block}
.ghost{background:transparent;color:var(--ink)}.sm{padding:5px 12px;font-size:.85rem}
input,textarea,select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:inherit;font-size:16px;margin-bottom:10px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.mark{width:44px;height:44px;border:0;border-radius:0;display:grid;place-items:center;color:var(--gold);font:700 1.4rem "Cormorant Garamond",serif;overflow:hidden;flex:none}
.mark img{width:100%;height:100%;object-fit:contain}
.msgs{flex:1;min-height:0;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:8px}
.m{max-width:82%;padding:8px 12px;border-radius:14px;overflow-wrap:anywhere;white-space:pre-wrap}
.m.me{align-self:flex-end;background:var(--gold);color:#111}.m.them{align-self:flex-start;background:var(--bg);border:1px solid var(--line)}
.send{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line)}.send input{margin:0}
.err{color:#d24a4a;font-size:.9rem;min-height:1.2em}