:root{color-scheme:light;--surface:#fff;--ground:#f5f5f5;--text:#1b212b;--muted:#535862;--line:#d5d7da;--blue:#175cd3;--brand:#b42318;--focus:#175cd3;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.45;color:var(--text);background:var(--ground)}:root[data-theme=dark]{color-scheme:dark;--surface:#1b212b;--ground:#11151b;--text:#f5f5f5;--muted:#bfc3ca;--line:#3c4451;--blue:#175cd3;--focus:#84caff}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--surface:#1b212b;--ground:#11151b;--text:#f5f5f5;--muted:#bfc3ca;--line:#3c4451;--focus:#84caff}}*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden;overscroll-behavior:none}body{position:fixed;inset:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer;min-height:44px;border:1px solid var(--line);border-radius:8px;padding:8px 14px;color:var(--text);background:var(--surface);touch-action:manipulation}button:disabled{cursor:default;opacity:.5}button:hover:not(:disabled){filter:brightness(.96)}button:active:not(:disabled){transform:translateY(1px)}:focus-visible{outline:2px solid var(--focus);outline-offset:3px}::selection{background:#b2ddff;color:#1b212b}input,textarea{caret-color:var(--focus)}a{color:var(--focus);text-underline-offset:3px}h1,h2,p{margin:0}h1{font-size:1.125rem;font-weight:650;line-height:1.25}h2{font-size:1rem}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}#app{position:absolute;top:0;left:0;right:0;margin:auto;width:100%;max-width:760px;height:100dvh;height:var(--app-height,100dvh);transform:translateY(var(--app-top,0px));display:flex;flex-direction:column;background:var(--surface);overflow:hidden;padding-top:env(safe-area-inset-top)}.demo-bar{flex-shrink:0;min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px;background:var(--ground);border-bottom:1px solid var(--line);font-size:.75rem;color:var(--muted)}.demo-bar button{border:0;background:none;padding:8px;color:var(--text);font-size:.8125rem}.notice{padding:8px 16px;font-size:.875rem;background:#fffaeb;color:#7a2e0e;flex-shrink:0}.screen{display:flex;flex-direction:column;min-height:0;flex:1;overflow:hidden}.center{align-items:center;justify-content:center;gap:16px}.app-header{flex-shrink:0;display:flex;align-items:center;gap:12px;min-height:76px;padding:12px max(16px,env(safe-area-inset-right)) 12px max(16px,env(safe-area-inset-left));border-bottom:1px solid var(--line)}.heading{min-width:0;flex:1}.heading p{font-size:.75rem;color:var(--muted);margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.avatar{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:var(--brand);color:#fff;font-size:.875rem;font-weight:650;flex-shrink:0}.icon-button{padding:10px;display:inline-flex;align-items:center;justify-content:center;border:0;min-width:44px;flex-shrink:0}.quiet{border:0;background:transparent;color:var(--focus);font-size:.875rem}.primary{background:var(--blue);border-color:var(--blue);color:#fff}#history{flex:1;min-height:0;overflow-y:auto;overscroll-behavior-y:contain;overflow-anchor:none;scrollbar-width:thin;scrollbar-color:var(--line) transparent;padding:16px max(16px,env(safe-area-inset-right)) 18px max(16px,env(safe-area-inset-left));background:var(--ground)}#older{display:block;margin:0 auto 16px}#messages{display:flex;flex-direction:column;gap:12px;list-style:none;padding:0;margin:0}.message{max-width:83%;align-self:flex-start;overflow-wrap:anywhere;min-width:72px}.message.own{align-self:flex-end}.bubble{background:var(--surface);border:1px solid var(--line);border-radius:2px 12px 12px;padding:10px 12px;white-space:pre-wrap;font-size:.9375rem}.own .bubble{background:var(--blue);border-color:var(--blue);color:#fff;border-radius:12px 2px 12px 12px}.message-meta{display:flex;gap:6px;align-items:center;justify-content:flex-end;margin-top:4px;font-size:.6875rem;color:var(--muted);font-variant-numeric:tabular-nums}.message-meta button{min-height:44px;font-size:.8125rem;color:var(--focus);background:none;border:0;padding:4px 8px}.file-link{display:block;text-align:left;background:none;color:inherit;border-color:currentColor;margin:4px 0;max-width:100%;overflow-wrap:anywhere}.empty{text-align:center;color:var(--muted);padding:40px 12px;font-size:.9375rem;line-height:1.7}#jump-latest{flex-shrink:0;border:0;border-radius:0;min-height:44px;color:var(--focus);font-size:.875rem;border-top:1px solid var(--line)}.composer{flex-shrink:0;border-top:1px solid var(--line);padding:8px max(8px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));background:var(--surface)}.compose-row{display:flex;align-items:flex-end;gap:6px}textarea{resize:none;display:block;min-width:0;flex:1;max-height:128px;min-height:44px;line-height:24px;padding:10px 12px;border:0;border-radius:8px;background:var(--ground);color:var(--text);overflow-y:auto;overscroll-behavior:contain}textarea::placeholder{color:var(--muted)}#attachment-selection{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:4px 10px;font-size:.8125rem}#attachment-selection span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.page-scroll{overflow-y:auto;overscroll-behavior:contain;flex:1;min-height:0;padding:24px max(20px,env(safe-area-inset-right)) max(24px,env(safe-area-inset-bottom)) max(20px,env(safe-area-inset-left));scrollbar-width:thin;scrollbar-color:var(--line) transparent}.intro{color:var(--muted);font-size:.875rem;margin-bottom:24px;max-width:55ch}.seller-row{display:flex;align-items:center;width:100%;gap:12px;padding:16px 0;border:0;border-bottom:1px solid var(--line);border-radius:0;text-align:left}.seller-row strong{display:block;font-weight:600}.seller-row small{display:block;color:var(--muted);margin-top:4px}.seller-row .row-copy{flex:1}.settings-body h2{margin:28px 0 10px}.settings-body h2:first-child{margin-top:0}.muted,.hint{color:var(--muted)}.hint{font-size:.8125rem;line-height:1.6}.settings-body .hint{margin:4px 0 18px}.settings-link{display:block;border:0;border-bottom:1px solid var(--line);border-radius:0;width:100%;text-align:left;padding:12px 0;margin-top:12px}.settings-body select{margin:8px 0 24px;width:100%}label{display:block;font-size:.875rem;margin:10px 0 6px}input,select{color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:8px;min-height:44px;padding:9px 12px;max-width:100%}.auth{width:100%;max-width:420px;margin:0 auto;padding-top:40px}.auth h1{font-size:1.75rem;margin-bottom:20px}.auth>p{margin-bottom:24px;color:var(--muted)}.auth input,.auth form button,.auth>button{width:100%;margin-bottom:12px}.auth .hint{margin-top:20px}.checkbox{display:flex;align-items:center;gap:10px}.checkbox input{width:20px;min-height:20px}dialog{max-height:85dvh;overflow-y:auto;overscroll-behavior:contain;max-width:440px;width:calc(100% - 32px);border:1px solid var(--line);border-radius:16px;padding:20px;color:var(--text);background:var(--surface)}dialog::backdrop{background:#0000006b}dialog header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}dialog select{width:100%}.control-list{display:grid;gap:8px;margin:16px 0}.control-list button{text-align:left}#lab-status{font-size:.8125rem;min-height:24px;margin:12px 0;color:var(--muted)}#invite-link{display:block;padding:12px 0}#file-preview p{margin:16px 0}#reset{width:100%}#announcer{position:fixed}@media(min-width:800px){#app{border-left:1px solid var(--line);border-right:1px solid var(--line)}.app-header{padding:16px 24px}#history{padding:24px}.composer{padding:12px 16px}.page-scroll{padding:28px}.message{max-width:72%}}@media(prefers-reduced-motion:reduce){button:active:not(:disabled){transform:none}}.bubble{white-space:normal}.bubble p{white-space:pre-wrap}.message-code-block{display:block;overflow-wrap:anywhere}.message-quote{display:block;color:inherit;padding-inline-start:12px}.message-list-item{display:flex;gap:8px}.heading h1{overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.seller-row .row-copy{min-width:0;overflow-wrap:anywhere}dialog header{align-items:flex-start}dialog header h2{min-width:0;overflow-wrap:anywhere}dialog header button{flex-shrink:0}#preview-link{display:block;min-height:44px;padding-block:10px;overflow-wrap:anywhere}#preview-retry{margin-top:12px}.date-divider{align-self:stretch;text-align:center;color:var(--muted);font-size:.75rem;line-height:1.5;margin:8px 0;list-style:none}select{height:44px}.install-card{display:flex;gap:12px;padding:16px max(16px,env(safe-area-inset-right)) 12px max(16px,env(safe-area-inset-left));border-bottom:1px solid var(--line);flex-shrink:0;background:var(--surface)}.install-symbol{display:grid;place-items:center;width:36px;height:36px;background:var(--ground);border-radius:10px;flex-shrink:0;color:var(--focus)}.install-copy{min-width:0}.install-copy h2{font-size:.9375rem;line-height:1.4}.install-copy p{font-size:.8125rem;color:var(--muted);margin-top:3px}.install-actions{display:flex;flex-wrap:wrap;gap:4px 8px;margin-top:10px}.install-actions button{font-size:.8125rem}.install-guide header h2{font-size:1.25rem;line-height:1.3;padding-top:8px}.install-steps{list-style:none;padding:0;margin:24px 0;display:grid;gap:24px}.install-steps li{display:flex;gap:14px}.step-icon{display:grid;place-items:center;width:44px;height:44px;flex-shrink:0;background:var(--ground);border-radius:12px;color:var(--focus)}.install-steps strong{font-size:.9375rem;font-weight:600}.install-steps p{font-size:.875rem;color:var(--muted);margin-top:5px;line-height:1.6}.inline-icon svg{width:18px;height:18px;vertical-align:middle}.guide-done{width:100%;margin-top:20px}@media(max-width:600px){.install-guide{margin:auto auto 0;width:100%;max-width:100%;max-height:90dvh;border-radius:20px 20px 0 0;padding:20px max(20px,env(safe-area-inset-right)) max(20px,env(safe-area-inset-bottom)) max(20px,env(safe-area-inset-left))}}