/* uplink-web: the TUI dashboard's look, terminal colours and rounded panels. */
:root {
  color-scheme: dark;
  --bg: #0d1117;
  --panel: #11161d;
  --fg: #e6edf3;
  --muted: #9aa4af;
  --dim: #6e7781;
  --border: #30363d;
  --accent: #39c5cf;
  --ok: #3fb950;
  --bad: #f85149;
  --bad-soft: #ff9b94;
  --warn: #d29922;
  --warn-soft: #f0c674;
  --slow: #d16ee8;
  --cursor: #1f2a36;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #f6f8fa;
    --panel: #ffffff;
    --fg: #1f2328;
    --muted: #57606a;
    --dim: #6e7781;
    --border: #d0d7de;
    --accent: #0a7f8a;
    --ok: #1a7f37;
    --bad: #cf222e;
    --bad-soft: #a40e26;
    --warn: #9a6700;
    --warn-soft: #7d4e00;
    --slow: #8250df;
    --cursor: #e7eef6;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.45 var(--mono);
}

a { color: inherit; text-decoration-color: var(--dim); text-underline-offset: 2px; }
a:hover { color: var(--accent); }
code { color: var(--accent); }

.app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---- panels: a bordered box with its title set into the top border ---- */
.panel {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
  padding: 14px 12px 10px;
  min-width: 0;
}
.panel-title {
  position: absolute;
  top: -0.75em;
  left: 12px;
  padding: 0 6px;
  background: var(--bg);
  color: var(--fg);
  font-weight: 600;
  white-space: nowrap;
  max-width: calc(100% - 24px);
  overflow: hidden;
  text-overflow: ellipsis;
}
.panel[data-tone="ok"] { border-color: var(--ok); }
.panel[data-tone="bad"] { border-color: var(--bad); }
.panel[data-tone="warn"] { border-color: var(--warn); }
.panel[data-tone="slow"] { border-color: var(--slow); }
.panel[data-tone="accent"], .header, .launcher { border-color: var(--accent); }

/* ---- launcher ---- */
.launch-row { display: flex; gap: 8px; flex-wrap: wrap; }
input, button { font: inherit; color: inherit; }
input[type="text"], input[type="number"] {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  min-width: 0;
}
input:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
#sites { flex: 1 1 280px; }
button {
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 6px 14px;
  color: var(--accent);
  cursor: pointer;
}
button:disabled { border-color: var(--border); color: var(--dim); cursor: default; }
#start:not(:disabled) { background: var(--accent); color: var(--bg); font-weight: 600; }
button.small { padding: 2px 10px; font-size: 12px; }

.addresses { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.addresses:empty { display: none; }
.addresses li {
  display: flex;
  align-items: center;
  gap: 4px;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 4px 1px 10px;
}
.addresses a { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.addresses .remove { border: none; padding: 0 6px; color: var(--muted); line-height: 1.2; }
.addresses .remove:hover { color: var(--bad); }
.options { margin-top: 8px; color: var(--muted); }
.options summary { cursor: pointer; }
.option-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px 16px;
  margin-top: 8px;
}
.option-grid label { display: flex; flex-direction: column; gap: 2px; font-size: 12px; }
.option-grid label.check { flex-direction: row; align-items: center; gap: 6px; }
.message { margin: 6px 0 0; min-height: 1.2em; color: var(--muted); }

/* ---- tabs ---- */
.tabs { display: flex; gap: 0; flex-wrap: wrap; }
.tabs [role="tab"] {
  border: none;
  border-radius: 0;
  padding: 2px 12px;
  color: var(--muted);
  border-right: 1px solid var(--border);
}
.tabs [role="tab"]:last-child { border-right: none; }
.tabs [role="tab"][aria-selected="true"] { color: var(--accent); font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }

/* ---- header and gauge ---- */
.header .line { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.target { color: var(--accent); font-weight: 700; text-decoration: none; }

.gauge {
  position: relative;
  height: 1.5em;
  border-radius: 4px;
  background: var(--border);
  overflow: hidden;
}
.gauge-fill { position: absolute; inset: 0 auto 0 0; background: var(--accent); transition: width .2s linear; }
.gauge[data-kind="next"] .gauge-fill { background: var(--ok); }
.gauge-label {
  position: relative;
  display: block;
  text-align: center;
  font-size: 12px;
  line-height: 1.5em;
  font-weight: 600;
  color: var(--fg);
  text-shadow: 0 0 3px var(--bg), 0 0 3px var(--bg);
}

.notice ul { margin: 6px 0 0; padding-left: 20px; }
.notice {
  margin: 0;
  padding: 8px 12px;
  border: 1px dashed var(--warn);
  border-radius: 8px;
  color: var(--warn-soft);
}

/* ---- lists ---- */
.summary-row { display: grid; grid-template-columns: 3fr 2fr; gap: 10px; margin-bottom: 12px; }
.latency-row { display: grid; grid-template-columns: 1fr 340px; gap: 10px; }
.view { display: block; }
.view[hidden] { display: none; }

.rows {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow: auto;
  max-height: 340px;
}
.tall .rows { max-height: calc(100vh - 360px); min-height: 240px; }
.events .rows { max-height: 260px; }
.rows li { padding: 1px 4px; border-radius: 4px; }
.rows li.cursor { background: var(--cursor); }
.rows li.cursor::before { content: "▶"; position: absolute; margin-left: -1.1em; color: var(--fg); }
.tall .rows { padding-left: 1.2em; }
.cells { display: flex; gap: 8px; white-space: nowrap; overflow: hidden; }
.cells > * { flex: none; }
.cells .url, .cells .detail, .cells .muted:last-child { flex: 0 1 auto; overflow: hidden; text-overflow: ellipsis; }
.cells .url { min-width: 6ch; }
.found { padding-left: 4.5ch; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--dim); }
.code { min-width: 4ch; }
.kind { min-width: 11ch; }
.ms { min-width: 8ch; text-align: right; }
.tag { font-size: 12px; }
.empty { padding: 2px 4px; }

/* ---- histogram ---- */
.bars { display: flex; flex-direction: column; gap: 6px; padding-top: 4px; }
.bar-row { display: grid; grid-template-columns: 7ch 1fr 5ch; gap: 8px; align-items: center; }
.bar-label, .bar-count { text-align: right; color: var(--muted); }
.bar-track { height: 0.9em; }
.bar { display: block; height: 100%; min-width: 1px; border-radius: 2px; }

/* ---- report, footer, about ---- */
.report pre { margin: 6px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.report .small { position: absolute; top: -0.85em; right: 12px; background: var(--bg); }
.footer { display: flex; justify-content: space-between; gap: 12px; color: var(--dim); font-size: 12px; flex-wrap: wrap; }
.about { color: var(--muted); font-size: 13px; }
.about summary { cursor: pointer; }
.about li { margin: 4px 0; }

/* ---- tones ---- */
.dim { color: var(--dim); }
.muted { color: var(--muted); }
.strong { font-weight: 700; }
.ok { color: var(--ok); }
.bad { color: var(--bad); }
.bad-soft { color: var(--bad-soft); }
.warn { color: var(--warn); }
.warn-soft { color: var(--warn-soft); }
.slow { color: var(--slow); }
.accent { color: var(--accent); }
.accent-bg { background: var(--accent); }
.slow-bg { background: var(--slow); }

@media (max-width: 800px) {
  .summary-row, .latency-row { grid-template-columns: 1fr; }
  .header .line { white-space: normal; }
}