:root { --bg:#1e1e1e; --bg2:#252526; --fg:#d4d4d4; --accent:#e7764f; --busy:#ff9f0a; --ok:#30d158; --err:#ff453a; }
* { box-sizing:border-box; margin:0; padding:0; -webkit-tap-highlight-color:transparent; }
html,body { height:100%; overflow:hidden; background:var(--bg); color:var(--fg); font-family:-apple-system,system-ui,sans-serif; font-size:14px; }
/* iOS 隐藏滚动条（内容可滚，无占位条） */
::-webkit-scrollbar { display:none; }
/* 高度由 app.js fitViewport() 用 visualViewport 精确设置（iOS Safari 工具栏显隐、
   键盘弹出都会自动适配），CSS 的 100vh 只作 JS 未跑时的回退。
   env(safe-area-inset-bottom) 不在此加：visualViewport.height 已排除工具栏，
   再加 inset 会双重补偿出灰黑空白。 */
#app { display:flex; flex-direction:column; height:100vh;
  padding-top:env(safe-area-inset-top); }
header { display:flex; gap:8px; padding:10px; background:var(--bg2); align-items:center; flex-shrink:0; }
.hdr-btn { background:var(--bg); color:var(--fg); border:1px solid #444; border-radius:8px; padding:7px 11px; font-size:15px; line-height:1; flex-shrink:0; }
header select { flex:1; background:var(--bg); color:var(--fg); border:1px solid #444; border-radius:8px; padding:7px 8px; font-size:13px; min-width:0; appearance:none; }
.dot { width:9px; height:9px; border-radius:50%; background:var(--err); flex-shrink:0; }
.dot.ok { background:var(--ok); }
.dot.err { background:var(--err); }
.conn { display:flex; align-items:center; gap:5px; flex-shrink:0; }
.conn-label { font-size:11px; color:#888; }
.dot.ok + .conn-label { color:var(--ok); }
.tabs { display:flex; background:var(--bg2); border-bottom:1px solid #333; flex-shrink:0; }
.tabs button { flex:1; padding:12px; background:none; border:none; color:#aaa; border-bottom:2px solid transparent; font-size:13px; transition:color .2s; }
.tabs button.active { border-bottom-color:var(--accent); color:#fff; font-weight:600; }
/* main 只做 flex 容器，不滚动：每个 tab-content 各自滚动，
   避免跨 tab 共享 scrollTop（切回 Terminal 时顶部被 tabs 栏遮挡）。 */
main { flex:1; min-height:0; overflow:hidden; display:flex; flex-direction:column; }
.tab-content { display:none; }
.tab-content.active { display:block; flex:1; min-height:0; overflow-y:auto; overscroll-behavior:contain; -webkit-overflow-scrolling:touch; }
#taskList { padding:10px; display:flex; flex-direction:column; gap:10px; }
.empty { color:#666; text-align:center; padding:24px; font-size:13px; }
.card { background:var(--bg2); border-radius:10px; padding:12px; border-left:3px solid #555; cursor:pointer; transition:opacity .2s, transform .15s; }
.card:active { transform:scale(.98); }
.card.busy { border-left-color:var(--busy); }
.card.idle { border-left-color:#666; }
.card.dead { opacity:0.5; }
.card.selected { outline:2px solid var(--accent); }
.card-head { display:flex; align-items:center; gap:6px; font-size:13px; }
.card-head .sym { font-size:16px; min-width:18px; color:var(--accent); font-variant-emoji:text; }
.card-head .agent { color:var(--accent); font-weight:600; }
.card-head .label { flex:1; color:#aaa; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.card-head .elapsed { color:var(--busy); font-size:12px; flex-shrink:0; }
.tool { font-size:12px; color:var(--busy); margin-top:4px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.tool span { color:#888; }
.approval { color:var(--err); margin-top:4px; font-weight:600; }
.cmd { font-size:11px; color:#666; margin-top:4px; }
#fileTree { padding:4px 0; }
.tree-entry { padding:9px 12px; border-bottom:1px solid #2a2a2a; cursor:pointer; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.tree-entry:active { background:var(--bg2); }
.tree-entry.back { color:var(--accent); }
#fileView { padding:8px; }
.file-head { font-weight:600; margin-bottom:8px; }
.file-head .modified { color:var(--busy); font-weight:normal; font-size:12px; }
pre { background:var(--bg2); padding:8px; border-radius:6px; overflow-x:auto; font-size:12px; white-space:pre-wrap; word-break:break-all; line-height:1.4; }
pre.diff { color:#d4d4d4; }
pre.diff div { white-space:pre-wrap; word-break:break-all; }
/* 语法高亮（VS Code Dark+ 色系） */
.tok-kw { color:#c586c0; }   /* 关键字 */
.tok-str { color:#ce9178; }  /* 字符串 */
.tok-cmt { color:#6a9955; }  /* 注释 */
.tok-num { color:#b5cea8; }  /* 数字 */
.tok-x   { color:#9cdcfe; }  /* 额外（属性/变量/标签等） */
/* diff 行级着色 */
.diff-meta { color:#808080; font-style:italic; }
.diff-hunk { color:#4a9eff; font-weight:600; }
.diff-add  { color:#30d158; background:rgba(48,209,88,.07); }
.diff-del  { color:#ff453a; background:rgba(255,69,58,.07); }
#terminalTab.active { display:flex; flex-direction:column; overflow:hidden; }
#terminalText { flex:1; min-height:0; background:#000; color:#e0e0e0; padding:10px; font-family:Menlo,monospace; font-size:12px; line-height:1.35; white-space:pre; overflow:auto; -webkit-overflow-scrolling:touch; overscroll-behavior:contain; touch-action:pan-x pan-y; margin:0; border-radius:0; border:none; }
/* 底部 inset 已由 #app 的 padding-bottom 统一处理，footer 不再重复加，
   否则输入框下方会出现一大块 footer 背景空白 */
footer { display:flex; flex-direction:column; gap:6px; padding:6px 8px 4px; background:var(--bg2); border-top:1px solid #333; flex-shrink:0; }
.quick-keys { display:flex; gap:6px; overflow-x:auto; -webkit-overflow-scrolling:touch; }
.quick-keys::-webkit-scrollbar { display:none; }
.quick-keys button { background:var(--bg); color:var(--fg); border:1px solid #444; border-radius:6px; padding:10px 12px; font-size:15px; flex-shrink:0; }
.input-row { display:flex; gap:6px; }
#inputBox { flex:1; background:var(--bg); color:var(--fg); border:1px solid #444; border-radius:8px; padding:8px; font-size:14px; min-width:0; min-height:40px; transition:border-color .2s; }
#inputBox:focus { outline:none; border-color:var(--accent); }
#sendBtn { background:var(--accent); color:#fff; border:none; border-radius:6px; padding:0 16px; font-size:14px; flex-shrink:0; }
.pair-view { display:flex; align-items:center; justify-content:center; height:100vh; background:var(--bg); padding-top:env(safe-area-inset-top); }
.pair-card { background:var(--bg2); padding:28px 24px; border-radius:16px; width:300px; display:flex; flex-direction:column; gap:12px; box-shadow:0 8px 32px rgba(0,0,0,.4); }
.pair-logo { display:flex; justify-content:center; margin-bottom:2px; }
.pair-logo svg { filter:drop-shadow(0 2px 8px rgba(231,118,79,.35)); }
.pair-card h2 { text-align:center; margin:0; font-size:20px; }
.pair-hint { font-size:12px; color:#888; text-align:center; margin:0; line-height:1.5; }
.pair-card input { background:var(--bg); color:var(--fg); border:1px solid #444; border-radius:8px; padding:11px; font-size:22px; text-align:center; letter-spacing:6px; font-variant-numeric:tabular-nums; transition:border-color .2s; }
.pair-card input#deviceNameInput { text-align:left; font-size:14px; letter-spacing:0; }
.pair-card input:focus { outline:none; border-color:var(--accent); }
#pairBtn { background:var(--accent); color:#fff; border:none; border-radius:8px; padding:12px; font-size:16px; font-weight:600; transition:opacity .2s; }
#pairBtn:disabled { opacity:.5; }
.pair-error { color:var(--err); font-size:12px; text-align:center; min-height:16px; }