:root{--bg:#f5f7fb;--card:#fff;--ink:#14213d;--mute:#5b6478;--line:#dde2ec;--brand:#2563eb;--brand-ink:#fff;--ok:#15803d;--warn:#b45309;--err:#b91c1c;--add:#e6f6ea;--del:#fdecec;--code:#0f172a;--radius:12px}
@media (prefers-color-scheme:dark){:root{--bg:#0f1420;--card:#171e2d;--ink:#e8ecf4;--mute:#9aa4b8;--line:#2a3347;--brand:#5b8cff;--brand-ink:#0b1020;--ok:#4ade80;--warn:#fbbf24;--err:#f87171;--add:#12301d;--del:#3a1717;--code:#0b1020}}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5}
[hidden]{display:none!important}
button,input,select,textarea{font:inherit}
button{background:var(--brand);color:var(--brand-ink);border:0;border-radius:8px;padding:.5rem 1rem;cursor:pointer;font-weight:600}
button:disabled{opacity:.45;cursor:not-allowed}
button.ghost{background:transparent;color:var(--brand);border:1px solid var(--line)}
button.danger{background:transparent;color:var(--err);border:1px solid var(--line)}
button.link{background:none;color:var(--ink);padding:.25rem .25rem;font-weight:600}
a{color:var(--brand)}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px}
input,select,textarea{width:100%;padding:.55rem .7rem;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.pad{padding:1rem}
.grow{flex:1;min-width:0}

/* header */
.top{display:flex;justify-content:space-between;align-items:center;gap:.75rem;padding:.6rem 1rem;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.brand{font-weight:800;font-size:1.15rem;display:flex;gap:.5rem;align-items:center}
.brand small{font-weight:400;color:var(--mute)}
.logo{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--brand);color:var(--brand-ink)}
.top-end{display:flex;gap:.75rem;align-items:center}
.chat-btn{background:var(--brand);color:var(--brand-ink);text-decoration:none;font-weight:600;border-radius:8px;padding:.45rem .9rem;white-space:nowrap}
.me{display:flex;gap:.6rem;align-items:center;font-size:.9rem}
.me img{width:28px;height:28px;border-radius:50%}

/* login */
.login{max-width:480px;margin:3rem auto;padding:1.5rem;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
.login form{display:grid;gap:.6rem;margin:1rem 0}
.err{color:var(--err);min-height:1.2em;margin:0}

/* layout */
.app{display:grid;grid-template-columns:230px minmax(0,1fr);min-height:calc(100vh - 56px)}
.sites{background:var(--card);border-inline-start:1px solid var(--line);padding:1rem;display:flex;flex-direction:column}
.sites h2{font-size:.85rem;color:var(--mute);margin:0 0 .5rem}
.sites ul{list-style:none;margin:0;padding:0;display:grid;gap:.25rem}
.sites button{width:100%;text-align:start;background:transparent;color:var(--ink);font-weight:500;display:flex;justify-content:space-between;gap:.5rem}
.sites button[aria-current="true"]{background:var(--bg);color:var(--brand)}
.nav-settings{margin-top:auto}
.badge{background:var(--warn);color:#fff;border-radius:99px;padding:0 .5rem;font-size:.75rem;flex:none;align-self:center}
.view{padding:1rem 1.25rem 6rem;min-width:0}
.site-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap}
.site-head h1{margin:0;font-size:1.4rem}
.hint{color:var(--mute);font-size:.88rem;margin:.25rem 0 .75rem}
h3{font-size:1rem;margin:1.5rem 0 .5rem}
.alert{background:var(--del);border:1px solid var(--err);border-radius:var(--radius);padding:.7rem 1rem}
.msg{min-height:1.2em;margin:.25rem 0;font-size:.9rem}
.msg.ok{color:var(--ok)}.msg.bad{color:var(--err)}
.empty{color:var(--mute);font-style:italic;list-style:none}

/* working on which version */
.work{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap;margin:.75rem 0 0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:.5rem .75rem}
.work label{font-weight:600;white-space:nowrap}
.work select{width:auto;max-width:100%;flex:1 1 260px}
.work .hint{margin:0;flex-basis:100%}

/* tabs */
.tabs{display:flex;gap:.25rem;border-bottom:1px solid var(--line);margin:1rem 0;overflow-x:auto}
.tabs button{background:transparent;color:var(--mute);border-radius:0;border-bottom:3px solid transparent;white-space:nowrap}
.tabs button[aria-selected="true"]{color:var(--brand);border-bottom-color:var(--brand)}

/* cards and lists */
.cards,.feed,.grid{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:.75rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:.85rem 1rem}
.card.editing{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand)}
.card-top{display:flex;justify-content:space-between;gap:.75rem;align-items:flex-start;flex-wrap:wrap}
.card h4{margin:0;font-size:1rem}
.meta{color:var(--mute);font-size:.82rem}
.actions{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.6rem}
.feed li{display:flex;gap:.75rem;padding:.55rem .8rem;background:var(--card);border:1px solid var(--line);border-radius:10px;align-items:baseline}
.feed .when{color:var(--mute);font-size:.8rem;white-space:nowrap;min-width:6.5rem}
.who{font-size:.75rem;border-radius:99px;padding:0 .45rem;border:1px solid var(--line);color:var(--mute);white-space:nowrap}
.who.claude{color:var(--brand);border-color:var(--brand)}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem;margin:1rem 0}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:.8rem 1rem;display:grid}
.stat b{font-size:1.8rem;line-height:1.1}
.stat span{color:var(--mute);font-size:.88rem}
.stat.hot b{color:var(--warn)}
.chips{display:flex;gap:.5rem;margin-top:.6rem;flex-wrap:wrap}
.chip{background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:99px;font-weight:500;padding:.25rem .8rem;font-size:.88rem}
.chip.hot{border-color:var(--warn);color:var(--warn)}
.comment{border-top:1px solid var(--line);margin-top:.5rem;padding-top:.5rem;font-size:.9rem;white-space:pre-wrap}
.reply,.row-form{display:flex;gap:.5rem;margin-top:.5rem}
.reply button,.row-form button{flex:none}
.note-form,.site-form{display:grid;gap:.5rem;max-width:560px}
.note-form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1rem}
.note-form button{justify-self:start}
.site-form h4{margin:0 0 .25rem}

/* memos */
.memos{list-style:none;margin:0;padding:0;display:grid;gap:.4rem}
.memos li{display:flex;gap:.6rem;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:.45rem .7rem}
.memos li.done .grow{text-decoration:line-through;color:var(--mute)}
.memos input[type=checkbox]{width:1.1rem;height:1.1rem;flex:none}
.memos .when{color:var(--mute);font-size:.8rem;white-space:nowrap}
.x{background:transparent;color:var(--mute);padding:.1rem .5rem;font-size:1.2rem;line-height:1}
.x:hover{color:var(--err)}

/* diff */
.diff{margin-top:.6rem}
.diff summary{cursor:pointer;color:var(--brand);font-weight:600;font-size:.9rem}
.diff-file{margin-top:.6rem;font-weight:600;font-size:.88rem;display:flex;gap:.5rem;flex-wrap:wrap}
.patch{margin:.3rem 0 0;background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:auto;max-height:420px;font:12px/1.5 ui-monospace,Consolas,monospace;text-align:left}
.patch .ln{white-space:pre;padding:0 .6rem}
.patch .add{background:var(--add)}
.patch .del{background:var(--del)}
.patch .hunk{color:var(--mute);background:var(--bg)}

/* preview and editor frames */
.toolbar{display:flex;gap:.75rem;align-items:center;flex-wrap:wrap;margin-bottom:.5rem}
.toolbar label{display:flex;gap:.4rem;align-items:center;white-space:nowrap}
.toolbar select{width:auto;max-width:260px}
.seg{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{border-radius:0;background:transparent;color:var(--ink);font-weight:500}
.seg button[aria-pressed="true"]{background:var(--brand);color:var(--brand-ink)}
.pill{font-size:.82rem;color:var(--warn);border:1px solid var(--warn);border-radius:99px;padding:.05rem .6rem;white-space:nowrap}
.frame-wrap{background:var(--line);border-radius:var(--radius);padding:8px;display:flex;justify-content:center}
.frame-wrap iframe{width:100%;height:72vh;border:0;border-radius:8px;background:#fff;transition:width .25s}

/* code */
.code{display:grid;grid-template-columns:260px minmax(0,1fr);gap:.75rem;min-height:70vh}
.files{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;min-height:0;max-height:75vh}
.files-tools{display:flex;flex-wrap:wrap;gap:.4rem;padding:.6rem;border-bottom:1px solid var(--line)}
.files-tools button{padding:.35rem .6rem;font-size:.85rem;flex:1}
.tree{list-style:none;margin:0;padding:.3rem 0;overflow:auto;font-size:.88rem;text-align:left}
.tree button{width:100%;text-align:left;background:transparent;color:var(--ink);font-weight:400;padding:.2rem .5rem;border-radius:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tree button:hover{background:var(--bg)}
.tree .dir{font-weight:600}
.tree .current{background:var(--bg);color:var(--brand);font-weight:600}
.tree .modified,.tree .added{color:var(--warn)}
.tree .deleted{text-decoration:line-through;color:var(--mute)}
.tree .dot{color:var(--warn)}
.editor{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;min-width:0;overflow:hidden}
.editor-head{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap;padding:.5rem .6rem;border-bottom:1px solid var(--line)}
.editor-head .path{font:600 .9rem ui-monospace,Consolas,monospace;overflow-wrap:anywhere}
.editor-head button{padding:.3rem .7rem;font-size:.85rem}
.code-body{flex:1;min-height:60vh;display:flex;flex-direction:column}
.code-wrap{flex:1;display:flex;direction:ltr;background:var(--code);min-height:60vh}
.gutter{margin:0;padding:.75rem .5rem;min-width:3.2rem;text-align:right;color:#64748b;background:var(--code);border-right:1px solid #1e293b;overflow:hidden;font:13px/1.55 ui-monospace,Consolas,monospace;user-select:none}
.src{flex:1;border:0;border-radius:0;resize:none;background:var(--code);color:#e2e8f0;padding:.75rem;font:13px/1.55 ui-monospace,Consolas,monospace;tab-size:2;white-space:pre;overflow:auto;min-height:60vh}
.src:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--brand)}
.binary{display:grid;gap:.6rem;justify-items:start}
.img-preview{max-width:100%;max-height:50vh;border:1px solid var(--line);border-radius:8px;background:repeating-conic-gradient(#ddd 0 25%,#fff 0 50%) 0 0/16px 16px}

/* basket */
.basket{position:sticky;bottom:0;max-height:70vh;overflow:auto;margin:1.5rem -1.25rem -6rem;background:var(--card);border-top:2px solid var(--warn);box-shadow:0 -6px 20px rgba(0,0,0,.08);padding:.6rem 1.25rem;z-index:4}
.basket-row{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}
.basket-row input{flex:1 1 220px;width:auto}
.basket-row button{flex:none}
.basket-more{display:none}
.basket.open .basket-more{display:block}
.basket-files{list-style:none;margin:.3rem 0 0;padding:0;display:grid;gap:.2rem;font:.85rem ui-monospace,Consolas,monospace;max-height:30vh;overflow:auto;text-align:left}
.basket-files li{display:flex;align-items:center;gap:.4rem}
.st{font:600 .72rem system-ui,sans-serif;border-radius:99px;padding:0 .45rem;border:1px solid var(--line)}
.st.modified,.st.added{color:var(--warn);border-color:var(--warn)}
.st.deleted{color:var(--err);border-color:var(--err)}

/* toast */
.toast{position:fixed;bottom:5.5rem;left:50%;transform:translate(-50%,150%);background:var(--ink);color:var(--bg);padding:.7rem 1.1rem;border-radius:10px;max-width:min(92vw,560px);z-index:20;transition:transform .25s;font-weight:500;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.toast.show{transform:translate(-50%,0)}
.toast.bad{background:var(--err);color:#fff}

/* phones and small tablets */
@media (max-width:860px){
  .app{grid-template-columns:minmax(0,1fr)}
  .sites{border:0;border-bottom:1px solid var(--line);padding:.5rem 1rem;flex-direction:row;gap:.25rem;overflow-x:auto}
  .sites h2{display:none}
  .sites ul{display:flex}
  .sites button{white-space:nowrap}
  .nav-settings{margin:0;flex:none;width:auto!important}
  .view{padding:.75rem 1rem 6rem}
  .frame-wrap iframe{height:65vh}
  .feed li{flex-wrap:wrap}
  .feed .grow{order:3;flex-basis:100%}
  .code{grid-template-columns:minmax(0,1fr)}
  .files{max-height:38vh}
  .basket{margin:1.5rem -1rem -6rem;padding:.6rem 1rem}
}
@media (max-width:480px){
  .brand small,.login-name,.chat-btn span{display:none}
  .top{padding:.5rem .75rem}
  .stat b{font-size:1.4rem}.stats{gap:.5rem}.stat{padding:.6rem}
  .row-form,.reply{flex-wrap:wrap}
}