:root{--fg:#f5f6f8;--fg-dim:rgba(245,246,248,.55);--glass-bg:hsla(0,0%,100%,.08);--glass-bg-strong:hsla(0,0%,100%,.14);--glass-border:hsla(0,0%,100%,.22);--glass-blur:16px;--radius:14px;--shadow:0 8px 32px rgba(0,0,0,.28)}*{box-sizing:border-box;margin:0;padding:0}body,html{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;color:var(--fg);overflow:hidden}main{position:relative;height:100vh;width:100vw;display:flex;flex-direction:column}.bg{z-index:0;background:url(/background.jpg) 50%/cover no-repeat;filter:brightness(.75);transform:scale(1.02)}.bg,.bg-overlay{position:absolute;inset:0}.bg-overlay{z-index:1;background:linear-gradient(180deg,rgba(8,8,12,.35),rgba(8,8,12,.15) 45%,rgba(8,8,12,.55));pointer-events:none}.content{position:relative;z-index:2;display:flex;flex-direction:column;height:100%;max-width:720px;width:100%;margin:0 auto;padding:24px 20px 20px}header{display:flex;align-items:center;gap:12px;padding-bottom:16px}header .brand{font-size:15px;font-weight:600;letter-spacing:.02em}header .brand-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#7dd87d;margin-left:8px;box-shadow:0 0 0 0 rgba(125,216,125,.6);animation:pulse 2.4s infinite}@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(125,216,125,0)}to{box-shadow:0 0 0 0 rgba(125,216,125,0)}}header .sub{font-size:12px;color:var(--fg-dim);margin-top:2px}.chat{flex:1 1;overflow-y:auto;display:flex;flex-direction:column;gap:12px;padding:8px 0 16px;scrollbar-width:thin;scrollbar-color:hsla(0,0%,100%,.25) transparent}.chat::-webkit-scrollbar{width:6px}.chat::-webkit-scrollbar-thumb{background:hsla(0,0%,100%,.25);border-radius:3px}.msg{max-width:82%;padding:12px 16px;border-radius:var(--radius);font-size:14.5px;line-height:1.55;white-space:pre-wrap;word-wrap:break-word}.msg.user{align-self:flex-end;background:var(--glass-bg-strong);border:1px solid var(--glass-border);border-bottom-right-radius:4px}.msg.bot,.msg.user{backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));box-shadow:var(--shadow)}.msg.bot{align-self:flex-start;background:var(--glass-bg);border:1px solid var(--glass-border);border-bottom-left-radius:4px}.msg.typing span{display:inline-flex;gap:4px}.msg.typing span i{width:6px;height:6px;border-radius:50%;background:rgba(245,246,248,.7);animation:bob 1.2s infinite}.msg.typing span i:nth-child(2){animation-delay:.15s}.msg.typing span i:nth-child(3){animation-delay:.3s}@keyframes bob{0%,to{transform:translateY(0);opacity:.4}50%{transform:translateY(-4px);opacity:1}}.composer{display:flex;align-items:flex-end;gap:10px;padding:12px;border-radius:var(--radius);background:var(--glass-bg);border:1px solid var(--glass-border);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));box-shadow:var(--shadow)}textarea{flex:1 1;resize:none;border:none;outline:none;background:transparent;color:var(--fg);font-family:inherit;font-size:14.5px;line-height:1.5;max-height:132px;padding:6px 4px}textarea::placeholder{color:var(--fg-dim)}button.send{flex:none;display:flex;align-items:center;justify-content:center;width:42px;height:42px;border:none;border-radius:50%;background:hsla(0,0%,100%,.18);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));color:var(--fg);cursor:pointer;transition:background .15s,transform .1s}button.send:hover{background:hsla(0,0%,100%,.32)}button.send:active{transform:scale(.94)}button.send:disabled{opacity:.5;cursor:default}.memory-hint{text-align:center;font-size:11px;color:var(--fg-dim);padding-top:10px;letter-spacing:.04em;text-transform:uppercase}