/* SSH 隧道管理器 — 界面样式
   原则:石墨深色底、单一点缀色、无渐变无发光、系统字体 */

:root {
  --bg: #111418;
  --surface: #171b21;
  --surface-2: #1d232b;
  --surface-3: #242b34;
  --border: #28303a;
  --border-strong: #384250;
  --text: #e2e7ee;
  --dim: #97a1ad;
  --faint: #5f6a76;
  --accent: #2fbfa1;
  --accent-strong: #43d6b5;
  --accent-dim: rgba(47, 191, 161, 0.13);
  --on-accent: #07130f;
  --green: #46c46e;
  --green-dim: rgba(70, 196, 110, 0.12);
  --amber: #d9a23c;
  --amber-dim: rgba(217, 162, 60, 0.12);
  --red: #e2564d;
  --red-dim: rgba(226, 86, 77, 0.12);
  --r-lg: 10px;
  --r-md: 8px;
  --r-sm: 6px;
  --mono: "Cascadia Mono", "JetBrains Mono", "Consolas", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font: 13px/1.55 "Segoe UI Variable Text", "Segoe UI", "Microsoft YaHei UI",
    system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  user-select: none;
  cursor: default;
}

::selection { background: var(--accent-dim); color: var(--text); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--surface-3);
  border: 3px solid transparent;
  border-radius: 6px;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background-color: var(--border-strong); }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, select { font: inherit; color: var(--text); }
svg.ic { flex: none; vertical-align: -2px; }

.mono { font-family: var(--mono); }

/* ---------- 标题栏 ---------- */

.titlebar {
  height: 42px;
  display: flex;
  align-items: center;
  -webkit-app-region: no-drag;
}

.titlebar .drag-zone {
  display: flex;
  align-items: center;
  gap: 9px;
  flex: 1;
  height: 100%;
  padding-left: 14px;
}

.titlebar .logo {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  overflow: hidden;
  flex: none;
}
.titlebar .logo img { width: 100%; height: 100%; display: block; }

.titlebar .title {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.2px;
  color: var(--dim);
}

.win-controls { display: flex; height: 100%; }

.wbtn {
  width: 44px;
  height: 100%;
  display: grid;
  place-items: center;
  color: var(--dim);
  transition: background 0.12s, color 0.12s;
}
.wbtn:hover { background: var(--surface-2); color: var(--text); }
.wbtn.close:hover { background: #d0342c; color: #fff; }

/* ---------- 布局 ---------- */

#app { display: flex; height: calc(100% - 42px); }

nav#nav {
  width: 172px;
  flex: none;
  display: flex;
  flex-direction: column;
  padding: 10px 10px 12px;
  border-right: 1px solid var(--border);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-radius: var(--r-md);
  color: var(--dim);
  font-size: 13px;
  margin-bottom: 2px;
  transition: background 0.12s, color 0.12s;
  text-align: left;
}
.nav-item:hover { background: var(--surface); color: var(--text); }
.nav-item.on {
  background: var(--surface-2);
  color: var(--text);
  font-weight: 500;
}
.nav-item.on .ic { color: var(--accent); }
.nav-item .nav-badge {
  margin-left: auto;
  font-size: 11px;
  font-family: var(--mono);
  color: var(--faint);
}
.nav-item .nav-badge.live { color: var(--green); }

.nav-foot { margin-top: auto; padding: 0 6px; }

.conn-summary {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11.5px;
  color: var(--faint);
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

main#main { flex: 1; min-width: 0; overflow-y: auto; }

.view { display: none; padding: 22px 26px 30px; }
.view.on { display: block; }

.view-head {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
  gap: 12px;
}
.view-head h1 { font-size: 16px; font-weight: 600; }
.view-head .count {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  margin-top: 1px;
}
.view-head .spacer { flex: 1; }

/* ---------- 通用控件 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 14px;
  border-radius: var(--r-md);
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text);
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  white-space: nowrap;
}
.btn:hover { background: var(--surface-3); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}
.btn.primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
.btn.sm { height: 28px; padding: 0 11px; font-size: 12px; border-radius: var(--r-sm); }
.btn.subtle { background: transparent; border-color: var(--border); color: var(--dim); }
.btn.subtle:hover { color: var(--text); background: var(--surface-2); }
.btn.danger { color: var(--red); border-color: rgba(226, 86, 77, 0.4); }
.btn.danger:hover { background: var(--red-dim); border-color: var(--red); }
.btn:disabled { opacity: 0.45; pointer-events: none; }

.ibtn {
  width: 28px;
  height: 28px;
  border-radius: var(--r-sm);
  display: inline-grid;
  place-items: center;
  color: var(--faint);
  transition: background 0.12s, color 0.12s;
  flex: none;
}
.ibtn:hover { background: var(--surface-3); color: var(--text); }
.ibtn.red:hover { background: var(--red-dim); color: var(--red); }

.field { margin-bottom: 13px; }
.field > label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--dim);
  margin-bottom: 6px;
}
.field .hint {
  font-size: 11.5px;
  color: var(--faint);
  margin-top: 5px;
  line-height: 1.45;
}

.ipt {
  width: 100%;
  height: 34px;
  padding: 0 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  outline: none;
  transition: border-color 0.12s, box-shadow 0.12s;
}
textarea.ipt { height: auto; padding: 8px 10px; resize: vertical; }
.ipt:hover { border-color: var(--border-strong); }
.ipt:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
.ipt::placeholder { color: var(--faint); }
.ipt.err { border-color: var(--red); }
select.ipt { appearance: none; padding-right: 28px; cursor: pointer; }
.sel-wrap { position: relative; }
.sel-wrap::after {
  content: "";
  position: absolute;
  right: 11px; top: 13px;
  width: 7px; height: 7px;
  border-right: 1.6px solid var(--faint);
  border-bottom: 1.6px solid var(--faint);
  transform: rotate(45deg);
  pointer-events: none;
}

.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.row2-uneven { display: grid; grid-template-columns: 1fr 110px; gap: 0 12px; }

.seg {
  display: flex;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 2px;
  gap: 2px;
}
.seg button {
  flex: 1;
  height: 28px;
  border-radius: var(--r-sm);
  color: var(--dim);
  font-size: 12.5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background 0.12s, color 0.12s;
}
.seg button:hover { color: var(--text); }
.seg button.on {
  background: var(--surface-3);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border-strong);
}

.switch-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
}
.switch-row .sw-text { flex: 1; }
.switch-row .sw-title { font-size: 12.5px; }
.switch-row .sw-desc { font-size: 11.5px; color: var(--faint); }

.switch {
  position: relative;
  width: 34px; height: 20px;
  flex: none;
  appearance: none;
  background: var(--surface-3);
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.switch::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--dim);
  transition: left 0.15s, background 0.15s;
}
.switch:checked { background: var(--accent-dim); border-color: var(--accent); }
.switch:checked::after { left: 16px; background: var(--accent); }

/* ---------- 隧道卡片 ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(430px, 1fr));
  gap: 14px;
}

.tcard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px 16px 13px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s;
}
.tcard:hover { border-color: var(--border-strong); }
.tcard.live { border-color: rgba(70, 196, 110, 0.25); }

.tcard .head { display: flex; align-items: center; gap: 8px; }
.tcard .name {
  font-size: 13.5px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tcard .head .grow { flex: 1; min-width: 0; }

.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex: none;
  background: var(--faint);
}
.dot.green { background: var(--green); box-shadow: 0 0 0 3px var(--green-dim); }
.dot.amber { background: var(--amber); box-shadow: 0 0 0 3px var(--amber-dim); }
.dot.red { background: var(--red); box-shadow: 0 0 0 3px var(--red-dim); }
.dot.pulse { animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.35; } }

.status-text { font-size: 12px; color: var(--dim); white-space: nowrap; }
.status-text.green { color: var(--green); }
.status-text.amber { color: var(--amber); }
.status-text.red { color: var(--red); }

.err-line {
  font-size: 11.5px;
  color: var(--red);
  background: var(--red-dim);
  border: 1px solid rgba(226, 86, 77, 0.25);
  border-radius: var(--r-sm);
  padding: 6px 9px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mapline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 7px 8px 7px 11px;
}
.mapline .addr { color: var(--text); }
.mapline .arrow { color: var(--accent); flex: none; }
.mapline .grow { flex: 1; }

.meta-row {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  color: var(--faint);
}
.meta-row .ic { color: var(--faint); }
.meta-row .sep { margin: 0 4px; color: var(--border-strong); }
.meta-row .grow { flex: 1; }
.meta-row button {
  color: var(--faint);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11.5px;
  padding: 2px 6px;
  border-radius: var(--r-sm);
  transition: color 0.12s, background 0.12s;
}
.meta-row button:hover { color: var(--text); background: var(--surface-2); }
.meta-row button .ic { transition: transform 0.15s; }
.meta-row button.open .ic { transform: rotate(180deg); }

.acts { display: flex; align-items: center; gap: 8px; }
.acts .grow { flex: 1; }

.logbox {
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--dim);
  background: #0d1013;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 8px 11px;
  max-height: 130px;
  overflow-y: auto;
  user-select: text;
}
.logbox .lt { color: var(--faint); margin-right: 8px; }
.logbox .l-warn { color: var(--amber); }
.logbox .l-error { color: var(--red); }

/* ---------- 主机列表 ---------- */

.host-list { display: flex; flex-direction: column; gap: 10px; max-width: 860px; }

.hcard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: border-color 0.15s;
}
.hcard:hover { border-color: var(--border-strong); }
.hcard .icon-box {
  width: 34px; height: 34px;
  border-radius: var(--r-md);
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  color: var(--dim);
  flex: none;
}
.hcard .info { flex: 1; min-width: 0; }
.hcard .hname { font-weight: 600; font-size: 13px; }
.hcard .haddr {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--dim);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.hcard .tags { display: flex; gap: 6px; margin-top: 5px; }
.hcard .used-by { font-size: 11.5px; color: var(--faint); margin-top: 5px; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10.5px;
  padding: 1px 7px;
  border-radius: 20px;
  border: 1px solid var(--border-strong);
  color: var(--dim);
  background: var(--surface-2);
}

/* ---------- 日志视图 ---------- */

.log-feed {
  background: #0d1013;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.85;
  height: calc(100vh - 175px);
  overflow-y: auto;
  user-select: text;
}
.log-feed .row { display: flex; gap: 12px; }
.log-feed .t { color: var(--faint); flex: none; width: 62px; }
.log-feed .src { color: var(--dim); flex: none; width: 130px; overflow: hidden; text-overflow: ellipsis; }
.log-feed .m { color: var(--dim); word-break: break-all; }
.log-feed .l-info .m { color: var(--dim); }
.log-feed .l-success .m { color: var(--green); }
.log-feed .l-warn .m { color: var(--amber); }
.log-feed .l-error .m { color: var(--red); }
.log-feed .empty-feed { color: var(--faint); text-align: center; padding-top: 60px; }

/* ---------- 空状态 ---------- */

.empty {
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-lg);
  padding: 56px 20px;
  text-align: center;
  color: var(--faint);
}
.empty .glyph { color: var(--faint); opacity: 0.75; margin-bottom: 12px; }
.empty h2 { font-size: 13.5px; font-weight: 600; color: var(--dim); margin-bottom: 5px; }
.empty p { font-size: 12px; margin-bottom: 16px; }

/* ---------- 弹窗 ---------- */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 7, 9, 0.62);
  display: grid;
  place-items: center;
  z-index: 50;
  animation: fadein 0.14s ease;
}
@keyframes fadein { from { opacity: 0; } }

.modal {
  width: 480px;
  max-width: calc(100vw - 48px);
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  animation: rise 0.16s ease;
}
@keyframes rise { from { transform: translateY(8px); opacity: 0; } }

.modal .m-head {
  display: flex;
  align-items: center;
  padding: 15px 18px 13px;
  border-bottom: 1px solid var(--border);
}
.modal .m-head h2 { font-size: 14px; font-weight: 600; flex: 1; }
.modal .m-body { padding: 16px 18px 4px; }
.modal .m-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px 16px;
}
.modal .m-foot .grow { flex: 1; }

.probe-result {
  display: flex;
  gap: 7px;
  align-items: flex-start;
  font-size: 12px;
  border-radius: var(--r-md);
  padding: 8px 10px;
  margin-bottom: 13px;
  line-height: 1.5;
  word-break: break-all;
}
.probe-result.ok { background: var(--green-dim); color: var(--green); }
.probe-result.bad { background: var(--red-dim); color: var(--red); }

.confirm-text { font-size: 13px; color: var(--dim); line-height: 1.6; padding-bottom: 10px; }
.confirm-text b { color: var(--text); }

/* ---------- Toast ---------- */

#toastRoot {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 100;
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  min-width: 220px;
  max-width: 380px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-md);
  padding: 10px 13px;
  font-size: 12.5px;
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.35);
  animation: rise 0.18s ease;
}
.toast.error { border-left-color: var(--red); }
.toast .t-msg { flex: 1; word-break: break-all; }
.toast .t-ic { margin-top: 1px; }
.toast.ok .t-ic { color: var(--accent); }
.toast.error .t-ic { color: var(--red); }
.toast.out { transition: opacity 0.25s, transform 0.25s; opacity: 0; transform: translateX(12px); }