:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel2: #1b222b;
  --line: #263041;
  --text: #d7dee8;
  --muted: #7d8899;
  --ok: #35c46a;
  --bad: #e5534b;
  --tx: #58a6ff;
  --rx: #35c46a;
  --warn: #d29922;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.5 -apple-system, "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
}

/* ---------- 顶栏 ---------- */

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand strong { font-size: 14px; letter-spacing: .3px; }
.tag {
  font-size: 11px; color: var(--muted); border: 1px solid var(--line);
  border-radius: 999px; padding: 1px 8px; background: var(--panel2);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); display: inline-block; }
.dot.ok { background: var(--ok); box-shadow: 0 0 8px rgba(53,196,106,.7); }
.muted { color: var(--muted); }
.small { font-size: 11.5px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }
.topbar-right b { color: var(--text); }

.field { display: flex; flex-direction: column; gap: 4px; }
.field > span { color: var(--muted); font-size: 12px; }
.field.grow { flex: 1; min-height: 0; }

input, select, textarea, button {
  font: inherit; color: var(--text); background: var(--panel2);
  border: 1px solid var(--line); border-radius: 6px; outline: none;
}
input, select { padding: 6px 9px; }

.btn {
  padding: 5px 10px; background: var(--panel2); border: 1px solid var(--line);
  border-radius: 6px; cursor: pointer; text-decoration: none; color: var(--text); white-space: nowrap;
}
.btn:hover { border-color: #3b4a61; background: #212a36; }
.btn.primary { background: #1f6feb; border-color: #1f6feb; color: #fff; }
.btn.primary:hover { background: #2b7cf5; }
.btn.tiny { padding: 3px 8px; font-size: 12px; }
.btn.ghost { background: transparent; }
.btn.wide { width: 100%; padding: 9px; }

/* ---------- 布局 ---------- */

.layout {
  display: grid; grid-template-columns: 280px minmax(0, 1fr) 360px; gap: 1px;
  height: calc(100vh - 53px); background: var(--line);
}
.col { background: var(--bg); display: flex; flex-direction: column; min-height: 0; min-width: 0; }
.col-head {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 8px 12px; border-bottom: 1px solid var(--line); background: var(--panel);
}
.col-head h2 { margin: 0; font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: .6px; }

/* ---------- 设备列表 ---------- */

.device-list { overflow: auto; padding: 8px; display: flex; flex-direction: column; gap: 8px; }
.device {
  padding: 9px 10px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; cursor: pointer; position: relative;
}
.device:hover { border-color: #3b4a61; }
.device.sel { border-color: #1f6feb; background: #16202e; }
.dev-row { display: flex; align-items: center; gap: 6px; font-size: 12.5px; }
.dev-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 150px; }
.dev-meta { color: var(--muted); font-size: 11px; margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.led { width: 7px; height: 7px; border-radius: 50%; background: #3a4454; flex: none; }
.led.on { background: var(--ok); box-shadow: 0 0 6px rgba(53,196,106,.8); }
.on-text { color: var(--ok); }
.off-text { color: var(--muted); }

.chip { font-size: 10px; padding: 0 5px; border-radius: 4px; border: 1px solid; line-height: 15px; flex: none; }
.chip.sim { color: #58a6ff; border-color: #1f4b7a; background: #10243a; }
.chip.warn { color: var(--warn); border-color: #5a4715; background: #2a2410; }
.chip.pend { color: #bc8cff; border-color: #4c3a6b; background: #241a33; }
.dh-hint { margin-top: 8px; padding: 6px 10px; border-radius: 6px; font-size: 12px; color: #d2a8ff; background: #1d1730; border: 1px solid #3b2f57; }

.del {
  margin-left: auto; width: 18px; height: 18px; line-height: 14px; text-align: center;
  border-radius: 4px; border: 1px solid transparent; background: transparent;
  color: var(--muted); cursor: pointer; opacity: 0; flex: none;
}
.device:hover .del { opacity: 1; }
.del:hover { color: var(--bad); border-color: #5a2c2c; background: #2a1414; }

.empty { color: var(--muted); padding: 24px 12px; text-align: center; font-size: 12px; }

/* ---------- 设备详情 ---------- */

.dev-head { padding: 12px 16px; background: var(--panel); border-bottom: 1px solid var(--line); }
.dh-title { display: flex; align-items: center; gap: 8px; }
.dh-title h3 { margin: 0; font-size: 15px; }
.dh-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 6px; color: var(--muted); font-size: 12px; }
.dh-meta b { color: var(--text); font-weight: 600; }
.dh-links { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.link-chip { font-size: 11px; line-height: 18px; padding: 0 7px; border-radius: 9px; border: 1px solid var(--line); color: var(--muted); background: var(--panel2); }
.link-chip.cell { color: #79c0ff; border-color: #1f4b7a; background: #10243a; }
.link-chip.wifi { color: #56d364; border-color: #23543a; background: #102a1b; }
.link-chip.active { color: var(--text); box-shadow: 0 0 0 1px #58a6ff55 inset; }
.link-chip.unknown { color: var(--warn); border-color: #5a4715; background: #2a2410; }

.tabs { display: flex; gap: 4px; padding: 8px 12px 0; border-bottom: 1px solid var(--line); background: var(--panel); }
.tab {
  padding: 6px 14px; background: transparent; border: 1px solid transparent;
  border-bottom: 2px solid transparent; border-radius: 6px 6px 0 0; cursor: pointer;
  color: var(--muted); font-size: 12.5px;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); background: var(--bg); border-bottom-color: #1f6feb; }
.tab-hint { margin-left: auto; align-self: center; color: var(--muted); font-size: 11.5px; padding: 0 6px 4px; white-space: nowrap; }
.inject { display: flex; align-items: center; gap: 6px; padding: 0 0 4px 6px; }
.inject select { padding: 2px 6px; font-size: 11.5px; }
.inject .btn { padding: 2px 8px; font-size: 11.5px; }

.detail-body { flex: 1; overflow: auto; min-height: 0; }

/* 报文 */
.pkts { font-family: "Cascadia Mono", Consolas, monospace; font-size: 12px; padding: 6px 0; }
.pkt { display: grid; grid-template-columns: 108px 62px 132px minmax(0,1fr) 16px; gap: 10px; padding: 2px 14px; cursor: pointer; }
.pkt:hover { background: #121820; }
.pkt.expanded { background: #16202e; }
.pkt .pc { color: var(--muted); transition: transform .15s; }
.pkt.expanded .pc { transform: rotate(90deg); color: var(--tx); }
.pkt .pt { color: var(--muted); }
.pkt .pd { font-weight: 600; }
.pkt.in .pd { color: var(--rx); }
.pkt.out .pd { color: var(--tx); }
.pkt .pm { color: #c9a227; overflow: hidden; text-overflow: ellipsis; }
.pkt .pb { color: #a9b6c7; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.pkt-detail { padding: 0 14px 10px 182px; }
.pkt-detail pre, .card pre.json {
  margin: 4px 0 2px;
  padding: 8px 10px;
  background: #0b0f14;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 11.5px;
  line-height: 1.55;
  color: #b7c4d6;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 320px;
  overflow: auto;
}

/* 数据卡片 */
.cards { display: flex; flex-wrap: wrap; gap: 10px; padding: 12px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; min-width: 200px; cursor: pointer; }
.card:hover { border-color: #3b4a61; }
.card.open { flex: 1 1 100%; }
.card.open .json { display: block; }
.card pre.json { display: none; }
.card h4 { margin: 0 0 6px; font-size: 12px; color: var(--text); font-weight: 600; }
.card h4 em { font-style: normal; color: var(--muted); font-size: 11px; font-weight: 400; float: right; margin-left: 10px; }
.kvs { display: flex; flex-wrap: wrap; gap: 4px 14px; }
.kv { font-size: 12px; }
.kv i { color: var(--muted); font-style: normal; margin-right: 4px; }
.kv b { font-weight: 600; }

/* 指令记录 */
.cmds { font-size: 12px; padding: 6px 0; }
.cmd-row { display: grid; grid-template-columns: 108px 130px 160px minmax(0,1fr) 120px 60px; gap: 10px; padding: 3px 14px; align-items: center; }
.cmd-row:hover { background: #121820; }
.cmd-row .pt { color: var(--muted); }
.cmd-row .pm { color: #c9a227; }
.cmd-row .pn { font-family: Consolas, monospace; }
.cmd-row .pnl { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.st { font-size: 11px; padding: 0 6px; border-radius: 4px; border: 1px solid var(--line); justify-self: start; }
.st.ack { color: var(--ok); border-color: #23543a; background: #10251a; }
.st.sent { color: var(--warn); border-color: #5a4715; background: #241f0c; }
.st.offline { color: var(--bad); border-color: #5a2c2c; background: #241010; }

/* ---------- 指令面板 ---------- */

.cmd-body { display: flex; flex-direction: column; gap: 10px; padding: 10px; flex: 1; min-height: 0; }
.seg { display: flex; gap: 0; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.seg-item {
  flex: 1; padding: 6px 4px; background: var(--panel2); border: none; border-right: 1px solid var(--line);
  cursor: pointer; color: var(--muted); font-size: 12px;
}
.seg-item:last-child { border-right: none; }
.seg-item.active { background: #1f6feb; color: #fff; }
.note { color: var(--muted); font-size: 11.5px; line-height: 1.4; min-height: 0; }
.cmd-body textarea {
  flex: 1; min-height: 140px; resize: none; padding: 8px 10px;
  font-family: "Cascadia Mono", Consolas, monospace; font-size: 12px; line-height: 1.55; tab-size: 2;
}
.cmd-actions { display: flex; align-items: center; gap: 10px; }

/* ---------- 弹窗 ---------- */

.modal-mask {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); display: none;
  align-items: center; justify-content: center; z-index: 50;
}
.modal-mask.show { display: flex; }
.modal {
  width: 420px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 12px; padding: 20px; display: flex; flex-direction: column; gap: 12px;
}
.modal h3 { margin: 0; font-size: 15px; }
.modal p { margin: -6px 0 2px; }
.modal input { padding: 8px 10px; }
.modal-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; margin-top: 4px; }

/* WiFi 配网弹窗 */
.modal.wide { width: 760px; }
.wifi-body { display: flex; gap: 18px; }
.wifi-col { flex: 1; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.wifi-head { display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 12px; }
.wifi-list {
  flex: 1; min-height: 180px; max-height: 260px; overflow: auto;
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg);
}
.wifi-item {
  display: flex; align-items: center; gap: 8px; padding: 7px 10px; cursor: pointer;
  width: 100%; text-align: left; border: 0; border-radius: 0; background: transparent;
  border-bottom: 1px solid #1c2431; font-size: 12.5px;
}
.wifi-item:last-child { border-bottom: none; }
.wifi-item:hover { background: #16202e; }
.wifi-item.sel { background: #16202e; border-left: 2px solid #1f6feb; }
.wifi-item .wifi-name { flex: 1; min-width: 0; }
.wifi-item .ssid { display: block; white-space: normal; overflow-wrap: anywhere; }
.wifi-item .wifi-meta { display: block; margin-top: 3px; color: var(--muted); font-size: 11px; overflow-wrap: anywhere; }
.wifi-item:focus-visible { outline: 2px solid #1f6feb; outline-offset: -2px; }
.wifi-item .rssi { flex-shrink: 0; color: var(--muted); font-size: 11px; }
.wifi-item .lock { color: var(--warn); font-size: 11px; }
.wifi-state { font-size: 12px; padding: 8px 10px; border-radius: 6px; background: var(--panel2); border: 1px solid var(--line); }
.wifi-state.ok { color: var(--ok); border-color: #23543a; }
.wifi-state.bad { color: var(--bad); border-color: #5a2c2c; }
.wifi-state.wait { color: var(--warn); border-color: #5a4715; }
.chk { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12px; }
.err { color: var(--bad); font-size: 12px; min-height: 16px; }

/* ---------- 登录 ---------- */

.login-body { display: grid; place-items: center; background: radial-gradient(circle at 50% 20%, #182233, #0b0e13 60%); }
.login-card {
  width: 340px; display: flex; flex-direction: column; gap: 12px; padding: 26px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
}
.login-card h1 { margin: 0; font-size: 16px; }
.login-card p { margin: -6px 0 6px; font-size: 12px; }
.login-card input { padding: 8px 10px; }

@media (max-width: 1200px) {
  .layout { grid-template-columns: 240px minmax(0,1fr); grid-template-rows: 1fr 300px; }
  .cmds { grid-column: 1 / -1; }
}

/* ---------------- Socket 全量流 ---------------- */
.sock-wrap { display: flex; flex-direction: column; height: 100%; min-height: 0; }
.sock-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 8px 12px; border-bottom: 1px solid var(--line); background: var(--panel); }
.sock-send { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 8px 12px; border-bottom: 1px solid var(--line); background: var(--panel2); }
.sock-send select,
.sock-send input { font: inherit; font-size: 12px; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 5px 8px; outline: none; }
.sock-send select { max-width: 340px; }
.sock-send input { flex: 1; min-width: 200px; }
.sock-send select:focus,
.sock-send input:focus { border-color: #3b4a61; }
.sock-send-msg { color: var(--ok); }
.sock-list { flex: 1; overflow: auto; min-height: 0; }
.sock { border-bottom: 1px solid rgba(255,255,255,.04); }
.sock > summary { display: grid; grid-template-columns: 92px 48px minmax(180px, 1.2fr) 170px minmax(160px, 1fr) auto; gap: 10px; align-items: center; padding: 5px 12px; cursor: pointer; font-family: "Cascadia Mono", Consolas, monospace; font-size: 12px; list-style: none; }
.sock > summary::-webkit-details-marker { display: none; }
.sock > summary:hover { background: var(--panel); }
.sock .st { color: var(--muted); }
.sock .sa { justify-self: end; }
.sock .sa .btn { opacity: .55; }
.sock:hover .sa .btn { opacity: 1; }
.sock .sn { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sock .sp { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sock .sr { color: #8b949e; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sock-in .sd { color: var(--ok); }
.sock-out .sd { color: #58a6ff; }
.sock-sys .sd { color: var(--muted); }
.sock-raw > summary { background: rgba(210,153,34,.06); }
.sock-raw .sn { color: var(--warn); }
.sock-raw .sr { color: #8d7c50; font-size: 11.5px; }
.sock-pre { margin: 0; padding: 8px 14px 10px; background: rgba(0,0,0,.28); font-size: 12px; white-space: pre-wrap; word-break: break-all; color: #c9d1d9; }

.wifi-item[data-five="1"] { opacity: .45; cursor: not-allowed; }
.wifi-state { overflow-wrap: anywhere; line-height: 1.7; }
.modal.wide { max-width: calc(100vw - 40px); max-height: calc(100vh - 40px); overflow-y: auto; }
@media (max-width: 640px) { .wifi-body { flex-direction: column; } }