/* Three Guys: near-black, cool paper, mint. App surfaces stay quiet and flat. */
:root{color-scheme:light;--paper:#fcfcfd;--sidebar:#f1f3f4;--surface:#f7f8f9;--raised:#ffffff;--hover:#e6e9eb;--selected:#dfe5e5;--ink:#191d20;--muted:#61686e;--line:#dce0e3;--control:#9ea8af;--mint:#00d4a4;--mint-ink:#00664e;--mint-wash:#dff8ef;--button:#1b2023;--button-ink:#fafcfc;--warning:#78501b;--warning-bg:#fff4dd;--danger:#a53931;--danger-bg:#fff0ed;--focus:#007f62;--overlay:#14252f66}
:root[data-theme="dark"]{color-scheme:dark;--paper:#1d2023;--sidebar:#16191b;--surface:#25292c;--raised:#292d31;--hover:#30363a;--selected:#353e40;--ink:#eef1f2;--muted:#acb5bc;--line:#373e44;--control:#65737d;--mint:#00d4a4;--mint-ink:#6ae6c5;--mint-wash:#183b32;--button:#e9edee;--button-ink:#1b2023;--warning:#f0cd8c;--warning-bg:#382e1b;--danger:#ffb2a8;--danger-bg:#412825;--focus:#55dfbb;--overlay:#090e14b3}
*{box-sizing:border-box}html{font-size:16px}body{margin:0;background:var(--paper);color:var(--ink);font:400 .875rem/1.5 "Inter","Avenir Next","Segoe UI",sans-serif;font-kerning:normal}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button,input,select,textarea,a{outline-offset:3px}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:2px solid var(--focus)}[hidden]{display:none!important}a{color:var(--mint-ink);text-underline-offset:3px}button{transition:background-color .12s,color .12s}input,select{background:var(--raised);border:1px solid var(--control);border-radius:7px;padding:11px 12px;max-width:100%}input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}
.mark{font:400 28px/1 "Arial",sans-serif;color:var(--ink)}.poc{font-size:.5625rem;letter-spacing:.09em;border:1px solid var(--line);color:var(--muted);padding:3px 5px;border-radius:4px}.eyebrow{font-size:.625rem;font-weight:600;letter-spacing:.14em;color:var(--muted)}.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--mint-ink);flex-shrink:0}.fine{font-size:.75rem;color:var(--muted);line-height:1.7}.error{font-size:.75rem;color:var(--danger);line-height:1.6;margin-top:12px}
.login-shell{min-height:100svh;display:flex;flex-direction:column;padding:32px 5vw;background:var(--surface)}.login-brand{display:flex;align-items:center;gap:12px;font-weight:650;font-size:1rem}.login-brand small,.brand small{display:block;font-size:.5rem;letter-spacing:.14em;color:var(--muted);margin-top:2px}.login-brand .poc{margin-left:8px}.login-card{width:min(430px,100%);margin:auto;padding:50px 0}.login-card h1{font-size:clamp(2.2rem,4vw,3rem);font-weight:600;line-height:1.12;letter-spacing:-.045em;margin:20px 0}.login-card>p{color:var(--muted);font-size:.9375rem;line-height:1.75}.login-card form{margin-top:28px}.login-card h2{font-size:1.0625rem;font-weight:550;margin:0 0 22px}label{display:block}#login-form label{font-size:.75rem;font-weight:550;margin-bottom:7px}#login-form input{width:100%;margin-bottom:16px}.primary{border:0;border-radius:7px;background:var(--mint);color:#102a24;width:100%;padding:13px 15px;margin-top:8px;text-align:left;font-weight:600;display:flex;justify-content:space-between}.primary:hover{background:#21dfb3}.auth-links{display:flex;gap:15px;flex-wrap:wrap;margin-top:20px}.auth-links button,.text-button{border:0;background:none;padding:4px 0;color:var(--muted);font-size:.75rem;text-align:left}.auth-links button:hover,.text-button:hover{color:var(--ink);text-decoration:underline}.login-card>.fine{font-size:.75rem;margin-top:26px}footer{display:flex;justify-content:space-between;font-size:.5625rem;letter-spacing:.14em;color:var(--muted)}
.workspace{display:flex;height:100svh;overflow:hidden}aside{width:300px;flex-shrink:0;background:var(--sidebar);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:22px 12px 12px;min-height:0}.brand{display:flex;align-items:center;gap:10px;padding:0 10px 26px}.brand strong{font-size:.9375rem;letter-spacing:-.03em;font-weight:600}.brand .poc{margin-left:auto}.device-label{font-size:.5625rem;letter-spacing:.12em;color:var(--muted);margin:0 10px 6px}#device{width:calc(100% - 12px);margin:0 6px;font-size:.75rem;padding:9px 10px;border-color:var(--line);background:var(--surface)}#manage{padding:9px 10px 18px}.new-chat{display:flex;align-items:center;gap:10px;padding:10px 12px;margin:0 6px;border:1px solid var(--button);border-radius:7px;background:var(--button);color:var(--button-ink);font-size:.8125rem;text-align:left;font-weight:500}.new-chat>span:first-child{font-size:1.125rem}.new-chat>span:last-child{margin-left:auto}.new-chat:not(:disabled):hover{filter:brightness(1.15)}.search{display:flex;align-items:center;gap:8px;margin:17px 9px 12px;color:var(--muted)}.search>span{font-size:1.375rem;line-height:1}.search input{padding:5px 0;min-width:0;width:100%;border:0;background:transparent;font-size:.75rem;border-radius:0}.section-label{display:flex;justify-content:space-between;align-items:center;padding:6px 9px 0;color:var(--muted);font-size:.625rem;letter-spacing:.11em}.section-label>div{display:flex;align-items:center;gap:5px}#collapse-projects{font-size:.625rem;letter-spacing:0;padding:6px}.icon-btn{background:transparent;border:0;border-radius:5px;color:var(--muted);padding:4px 7px;font-size:1.25rem;line-height:1.4}.icon-btn:hover{background:var(--hover);color:var(--ink)}.project-summary{font-size:.625rem;color:var(--muted);padding:0 10px 11px}.sessions{overflow-y:auto;flex:1;min-height:0;scrollbar-width:thin;scrollbar-color:var(--control) transparent;overscroll-behavior:contain}.project-group{margin:0 0 14px}.project-heading{display:flex;align-items:center;gap:8px;min-height:36px;width:100%;padding:6px 9px 6px 4px;background:transparent;border:0;border-radius:6px;text-align:left;color:var(--ink)}.project-heading:hover{background:var(--hover)}.project-chevron{display:inline-block;width:10px;flex-shrink:0;font-size:1rem;line-height:1;color:var(--muted);transform:rotate(90deg)}.project-heading[aria-expanded="false"] .project-chevron{transform:rotate(0)}.folder-icon{display:block;position:relative;width:14px;height:11px;border:1.2px solid currentColor;border-radius:2px;color:var(--muted);flex-shrink:0}.folder-icon:before{content:"";position:absolute;left:-1.2px;top:-4px;width:7px;height:4px;border:1.2px solid currentColor;border-bottom:0;border-radius:2px 2px 0 0;background:var(--sidebar)}.project-label{min-width:0;flex:1}.project-name{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.8125rem;font-weight:550}.project-parent{display:block;color:var(--muted);font-size:.625rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.project-count{font-variant-numeric:tabular-nums;font-size:.625rem;color:var(--muted)}.current-project .folder-icon{color:var(--mint-ink)}.project-sessions{margin-left:20px;padding-left:7px;border-left:1px solid var(--line)}.session{display:flex;align-items:center;width:100%;min-height:32px;padding:6px 9px;border:0;border-radius:6px;background:transparent;text-align:left;color:var(--muted);margin:1px 0;font-size:.8125rem;line-height:1.45}.session:hover{background:var(--hover);color:var(--ink)}.session.selected{background:var(--selected);color:var(--ink);font-weight:500;box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--mint-ink) 22%,transparent)}.session-title{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.project-more{display:block;border:0;background:transparent;color:var(--muted);font-size:.6875rem;padding:8px 9px;border-radius:5px;text-align:left}.project-more:hover{color:var(--mint-ink);background:var(--hover)}.more{border:1px solid var(--line);background:transparent;padding:9px;border-radius:6px;margin:8px 6px 0;font-size:.6875rem;color:var(--muted)}.more:hover{background:var(--hover)}.theme-toggle{background:transparent;border:0;border-radius:5px;text-align:left;padding:9px 10px;font-size:.6875rem;color:var(--muted);margin-top:8px}.theme-toggle:hover{background:var(--hover);color:var(--ink)}.sidebar-bottom{padding:12px 9px 0;margin-top:2px;border-top:1px solid var(--line);display:flex;gap:10px;align-items:center}.avatar{width:29px;height:29px;border-radius:50%;display:grid;place-items:center;background:var(--mint-wash);color:var(--mint-ink);font-size:.6875rem;font-weight:600}.sidebar-bottom strong{font-size:.75rem;font-weight:500}.sidebar-bottom small{display:block;color:var(--muted);font-size:.625rem;margin-top:2px}.sidebar-bottom button{margin-left:auto}
.main{flex:1;min-width:0;display:flex;flex-direction:column;background:var(--paper)}header{display:flex;align-items:center;gap:12px;min-height:76px;padding:16px 32px;border-bottom:1px solid var(--line);flex-shrink:0}.header-title{min-width:0}.header-title strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.875rem;font-weight:550}.header-title small{display:block;max-width:52vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.6875rem;color:var(--muted);margin-top:4px}.connection{display:flex;align-items:center;gap:7px;margin-left:auto;flex-shrink:0;white-space:nowrap;color:var(--mint-ink);background:var(--mint-wash);border-radius:5px;padding:6px 9px;font-size:.625rem}.connection.offline{background:var(--warning-bg);color:var(--warning)}.connection.offline .dot{background:var(--warning)}.messages{flex:1;min-height:0;overflow-y:auto;padding:36px max(28px,calc((100% - 720px)/2));scrollbar-width:thin;scrollbar-color:var(--control) transparent}.empty{font-size:.8125rem;color:var(--muted);line-height:1.75;margin:0;padding:26px 15px}.messages>.empty{margin-top:13vh;padding-left:0}.welcome{max-width:560px;margin:12vh auto 0;text-align:left}.welcome-icon{font-size:2rem;color:var(--mint-ink);display:block; margin-bottom:24px}.welcome h1{font-size:2rem;font-weight:550;letter-spacing:-.04em;line-height:1.2;margin:16px 0}.welcome p{font-size:.875rem;line-height:1.8;color:var(--muted)}.welcome-rule{width:40px;height:2px;background:var(--mint);margin:25px 0 20px}.welcome small{font-size:.75rem;color:var(--muted)}.message{margin:0 0 28px;line-height:1.8;font-size:.9375rem;overflow-wrap:anywhere}.message-label{font-size:.6875rem;font-weight:550;color:var(--muted);margin-bottom:7px}.message.user{margin-left:50px;background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:14px 18px}.message-body{white-space:pre-wrap}.message.tool{font-size:.75rem;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:12px 14px;color:var(--muted)}.message.tool .message-body{max-height:180px;overflow:auto}.composer-area{width:100%;max-width:820px;margin:0 auto;padding:12px 28px 20px}.composer-area form{border:1px solid var(--control);border-radius:12px;background:var(--raised);padding:15px 17px 11px}.composer-area form:focus-within{border-color:var(--focus)}textarea{display:block;width:100%;resize:vertical;min-height:58px;max-height:180px;border:0;background:transparent;line-height:1.65;font-size:.875rem}textarea:focus{outline:0}.composer-bottom{display:flex;align-items:center;gap:8px}#mode{font-size:.625rem;color:var(--muted);display:flex;align-items:center;gap:7px}.divider{color:var(--muted);padding:0 3px}.send{background:var(--mint);color:#102a24;border:0;border-radius:7px;font-size:1.375rem;width:34px;height:34px;margin-left:auto}.stop{margin-left:auto;border:1px solid var(--control);background:var(--surface);border-radius:6px;font-size:.75rem;padding:7px 10px}.stop:not([hidden])+.send{margin-left:0}.composer-caption{display:flex;justify-content:space-between;gap:12px;font-size:.5625rem;color:var(--muted);padding:10px 2px 0}.fork-note{font-size:.6875rem;color:var(--warning);line-height:1.6;padding:0 3px 10px}.notice{background:var(--warning-bg);border-bottom:1px solid var(--line);color:var(--warning);padding:10px 24px;font-size:.75rem}.approval-box{border:1px solid var(--warning);background:var(--warning-bg);padding:16px 20px;border-radius:8px;margin:0 28px 10px;font-size:.8125rem}.approval-box pre{max-height:140px;overflow:auto}.approval-box button{border:1px solid var(--control);background:var(--raised);border-radius:5px;padding:8px 14px;margin:8px 8px 0 0}.approval-box button.accept{background:var(--button);color:var(--button-ink);border-color:var(--button)}
dialog{border:1px solid var(--line);border-radius:12px;padding:28px;width:min(660px,calc(100% - 24px));max-height:90svh;overflow:auto;background:var(--paper);color:var(--ink)}dialog::backdrop{background:var(--overlay)}.dialog-head{display:flex;justify-content:space-between;align-items:start;gap:15px}.dialog-head h2{font-size:1.5rem;font-weight:550;letter-spacing:-.035em;margin:10px 0 22px}dialog section{border-top:1px solid var(--line);padding:20px 0}dialog h3{font-size:.9375rem;font-weight:550;margin:0 0 12px}dialog h4{font-weight:550}dialog label{font-size:.75rem;margin:12px 0 7px}dialog input{width:100%;font-size:.8125rem}dialog small{display:block;margin-top:7px;font-size:.6875rem;color:var(--muted)}.action{border:1px solid var(--control);border-radius:6px;background:var(--surface);padding:10px 14px;font-size:.75rem;margin-top:12px}.action:hover{background:var(--hover)}.danger{color:var(--danger);border-color:var(--danger);background:var(--danger-bg)}.guide{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px;margin-top:16px}.guide ol{padding-left:20px;font-size:.75rem;line-height:1.8}.guide li{margin:10px 0}pre{font:.6875rem/1.7 ui-monospace,Menlo,monospace;background:var(--hover);border-radius:6px;padding:12px;white-space:pre-wrap;overflow-wrap:anywhere}code{font-size:.6875rem}.device-row,.member-row,.invite-row{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);font-size:.75rem}.device-row strong{display:block;font-weight:550}.device-row .action,.member-row .action,.invite-row .action{margin:0;flex-shrink:0;padding:7px 10px}#invite-url{margin:14px 0;word-break:break-all}#recovery-dialog p{line-height:1.7;font-size:.8125rem;color:var(--muted)}#new-recovery{font-family:ui-monospace,monospace;font-size:.75rem}.menu,.scrim{display:none}
@media(max-width:1000px){aside{width:280px}header{padding:16px 22px}.composer-caption span:last-child{display:none}.messages{padding:28px}.composer-area{padding:12px 22px 18px}}
@media(max-width:700px){aside{position:fixed;left:-310px;top:0;bottom:0;width:min(300px,86vw);z-index:5}.sidebar-open aside{left:0}.sidebar-open .scrim{display:block;position:fixed;inset:0;z-index:4;background:var(--overlay);border:0}.menu{display:block}header{min-height:68px;padding:12px;gap:7px}.header-title small{max-width:40vw}.header-title strong{max-width:42vw}.connection{font-size:.5625rem;padding:6px;gap:5px}.messages{padding:24px 18px}.message{font-size:.875rem}.message.user{margin-left:22px}.composer-area{padding:9px 14px 16px}.composer-caption{font-size:.5625rem}.composer-caption span:first-child{max-width:100%}#mode{font-size:.5625rem}.approval-box{margin:0 14px 10px}.session{min-height:38px}.project-heading{min-height:42px}.project-more{min-height:36px}.login-shell{padding:24px}.login-card{padding:40px 0}footer>span{display:none}dialog{padding:20px}.welcome{margin-top:7vh}textarea{font-size:1rem}dialog input,#login-form input{font-size:1rem}}
.brand{padding-bottom:18px}.new-chat{min-height:38px;padding:6px 12px}.search{margin:12px 9px 6px}.project-summary{padding-bottom:8px}.device-panel{padding-top:12px;border-top:1px solid var(--line);margin-top:8px}.device-label{font-size:.5rem;margin-bottom:4px}#device{padding:6px 8px;font-size:.6875rem}.theme-toggle{padding:5px 10px;margin-top:4px}.sidebar-bottom{padding-top:8px}.account-menu,#manage{display:flex;align-items:center;gap:10px;min-width:0;flex:1;border:0;background:transparent;padding:3px 0;text-align:left;color:var(--ink)}.account-menu:hover strong{text-decoration:underline}.sidebar-bottom .account-menu{margin-left:0}.sidebar-bottom .icon-btn{flex-shrink:0}.account-menu>span:last-child{min-width:0}.account-menu strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.message.tool{padding:0;margin-bottom:12px;background:transparent;border:0}
.message.tool>summary{cursor:pointer;min-height:44px;padding:12px 8px;margin:0;border-radius:6px;color:var(--muted);font-size:.75rem;line-height:20px;overflow-wrap:anywhere}
.message.tool>summary:hover{background:var(--hover);color:var(--ink)}
.message.tool>summary:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.message.tool>summary::marker{color:var(--muted)}
.message.tool[open]>summary{color:var(--ink)}
.message.tool>.message-body{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:12px 14px;margin:2px 0 10px;max-height:260px;overflow:auto}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}