:root{color-scheme:light;--bg: #f5f7f8;--surface: #ffffff;--ink: #172026;--muted: #66717c;--line: #dce5e8;--accent: #0f766e;--accent-dark: #0b5d56;--danger: #b42318;--danger-soft: #fff0ee;--shadow: 0 22px 70px rgba(23, 32, 38, .08)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}.app-shell{width:min(1180px,calc(100vw - 32px));margin:0 auto;padding:22px 0 48px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.brand,.topbar nav,.icon-button,.button-row,.primary,.secondary,.danger,.link-button,.file-button{display:inline-flex;align-items:center;gap:8px}.brand{font-size:22px;font-weight:900}.topbar nav{gap:14px;color:var(--muted);font-weight:750}.screen{display:grid;gap:18px}.panel{border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow);padding:22px}.narrow{width:min(520px,100%);margin:8vh auto 0}.dashboard{grid-template-columns:1fr}.profile-panel{display:grid;grid-template-columns:1fr 180px;gap:20px;align-items:center}.profile-actions{grid-column:1 / -1;display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:10px}.qr-box{border:1px solid var(--line);border-radius:8px;padding:10px;background:#fff}.qr-box img{display:block;width:100%;aspect-ratio:1}h1,h2,p{margin-top:0}h1{margin-bottom:8px;font-size:32px;line-height:1.08;letter-spacing:0}h2{margin:0;font-size:19px;letter-spacing:0}.eyebrow{margin-bottom:5px;color:var(--accent);font-size:12px;font-weight:900;text-transform:uppercase}.uid{margin-bottom:0;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.form{display:grid;gap:15px}label{display:grid;gap:7px;color:#33404a;font-size:14px;font-weight:800}input{width:100%;min-height:44px;border:1px solid #cfd8dd;border-radius:7px;background:#fff;color:var(--ink);padding:0 12px;outline:none}input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #0f766e24}button,.link-button{min-height:42px;border-radius:7px;border:1px solid transparent;padding:0 13px;cursor:pointer;font-weight:850}.primary{justify-content:center;background:var(--accent);color:#fff}.primary:hover{background:var(--accent-dark)}.primary:disabled{cursor:not-allowed;opacity:.55}.secondary,.icon-button{background:#fff;border-color:var(--line);color:var(--ink)}.danger{background:var(--danger-soft);border-color:#ffd2cc;color:var(--danger)}.section-head{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:16px}.list{display:grid;gap:10px}.list-row{display:grid;grid-template-columns:24px minmax(0,1fr) auto;align-items:center;gap:10px;min-height:50px;border:1px solid var(--line);border-radius:7px;padding:10px 12px}.list-row small{color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.public-card{text-align:center}.public-card .button-row{justify-content:center;margin-top:18px}.chat-panel{display:grid;min-height:calc(100vh - 130px);grid-template-rows:auto minmax(260px,1fr) auto auto}.messages{display:flex;flex-direction:column;gap:10px;overflow:auto;border:1px solid var(--line);border-radius:8px;padding:14px;background:#fbfcfc}.message{width:min(680px,88%);border:1px solid var(--line);border-radius:8px;background:#fff;padding:10px 12px}.message.mine{align-self:flex-end;border-color:#0f766e3d;background:#effaf7}.message strong,.message time{display:block;color:var(--muted);font-size:12px}.message p{margin:6px 0;white-space:pre-wrap}.message img{display:block;max-width:min(380px,100%);max-height:320px;border-radius:7px;margin:8px 0}.composer{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:10px;margin-top:12px}.file-button{justify-content:center;min-width:46px;min-height:42px;border:1px solid var(--line);border-radius:7px;cursor:pointer}.file-button input{position:absolute;inline-size:1px;block-size:1px;opacity:0}.notice,.error,.muted{margin-bottom:0;color:var(--muted)}.notice{color:var(--accent-dark)}.error{color:var(--danger)}@media(max-width:760px){.app-shell{width:min(100vw - 20px,1180px)}.topbar,.profile-panel,.profile-actions,.composer,.list-row{grid-template-columns:1fr}.topbar{display:grid;gap:12px;align-items:start}.qr-box{width:180px}.message,.message.mine{width:100%}}