:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #16191d;
  --muted: #5d6673;
  --line: #e3e6ea;
  --accent: #0f766e;
  --accent-soft: #e0f2ef;
  --in: #15803d;
  --out: #1d4ed8;
  --warn: #b45309;
  --danger: #b91c1c;
  --me: #0f766e;
  --me-ink: #ffffff;
  --caller: #eef0f3;
  --radius: 12px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --panel: #171a20;
    --ink: #e7eaee;
    --muted: #9aa3ae;
    --line: #262b33;
    --accent: #2dd4bf;
    --accent-soft: #123532;
    --in: #4ade80;
    --out: #93c5fd;
    --warn: #fbbf24;
    --danger: #f87171;
    --me: #115e59;
    --me-ink: #e7f7f5;
    --caller: #20252d;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Arabic", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
button, input, select { font: inherit; color: inherit; }

/* ---- shell ---- */
header.top {
  position: sticky; top: 0; z-index: 2;
  display: flex; align-items: center; gap: 20px;
  padding: 0 20px; height: 56px;
  background: var(--panel); border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; letter-spacing: -0.01em; }
.brand svg { width: 26px; height: 26px; }
nav.tabs { display: flex; gap: 4px; flex: 1; }
nav.tabs a {
  padding: 6px 12px; border-radius: 8px; color: var(--muted); font-weight: 550;
}
nav.tabs a.on { background: var(--accent-soft); color: var(--accent); }
main { max-width: 980px; margin: 0 auto; padding: 24px 16px 64px; }
h1 { font-size: 22px; margin: 0 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 16px; margin: 28px 0 10px; }
.sub { color: var(--muted); margin: 0 0 18px; }

.btn {
  border: 1px solid var(--line); background: var(--panel); border-radius: 8px;
  padding: 7px 14px; cursor: pointer; font-weight: 550;
}
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { color: var(--danger); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn[disabled] { opacity: 0.5; cursor: default; }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.pill {
  display: inline-block; padding: 1px 9px; border-radius: 99px; font-size: 12px; font-weight: 600;
  background: var(--caller); color: var(--muted); white-space: nowrap;
}
.pill.good { background: var(--accent-soft); color: var(--accent); }
.pill.warn { color: var(--warn); }
.pill.bad { color: var(--danger); }
.muted { color: var(--muted); }
.error { color: var(--danger); margin: 8px 0; }
.empty { padding: 48px 20px; text-align: center; color: var(--muted); }

/* ---- login ---- */
.login { max-width: 340px; margin: 12vh auto 0; padding: 28px; }
.login h1 { margin-bottom: 18px; display: flex; gap: 10px; align-items: center; }
.field { display: grid; gap: 4px; margin-bottom: 14px; }
.field label { font-size: 13px; color: var(--muted); font-weight: 550; }
.field input, .field select {
  border: 1px solid var(--line); background: var(--bg); border-radius: 8px; padding: 9px 11px;
}
.field input:focus, .field select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

/* ---- calls ---- */
.calls { overflow: hidden; }
.call {
  display: grid; grid-template-columns: 38px 1fr auto; gap: 14px; align-items: center;
  padding: 13px 16px; border-top: 1px solid var(--line); color: inherit;
}
.call:first-child { border-top: 0; }
.call:hover { background: var(--bg); }
.dir {
  width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center;
  background: var(--caller);
}
.dir svg { width: 18px; height: 18px; }
.dir.in { color: var(--in); }
.dir.out { color: var(--out); }
.dir.unknown { color: var(--muted); }
.call .who { font-weight: 600; }
.call .meta { color: var(--muted); font-size: 13px; }
.day { margin: 22px 4px 8px; font-size: 13px; font-weight: 650; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }

/* ---- one call ---- */
.back { display: inline-block; margin-bottom: 14px; font-weight: 550; }
.callhead { display: flex; gap: 16px; align-items: center; margin-bottom: 18px; }
.callhead .dir { width: 48px; height: 48px; }
.facts { display: flex; flex-wrap: wrap; gap: 6px 18px; color: var(--muted); font-size: 14px; }
.player { padding: 16px; display: grid; gap: 12px; }
.player audio { width: 100%; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; }
.seg button { border: 0; background: none; padding: 5px 12px; cursor: pointer; font-size: 13px; font-weight: 550; color: var(--muted); }
.seg button.on { background: var(--accent-soft); color: var(--accent); }
.gaps { font-size: 13px; color: var(--warn); }

.transcript { padding: 16px; display: grid; gap: 10px; }
.line { display: flex; gap: 8px; align-items: flex-end; max-width: 82%; }
.line.me { margin-left: auto; flex-direction: row-reverse; }
.bubble { padding: 8px 12px; border-radius: 14px; background: var(--caller); white-space: pre-wrap; unicode-bidi: plaintext; }
.line.me .bubble { background: var(--me); color: var(--me-ink); }
.stamp { font-size: 12px; color: var(--muted); cursor: pointer; flex: none; padding-bottom: 6px; }
.stamp:hover { color: var(--accent); }
.who-label { font-size: 12px; color: var(--muted); margin: 0 4px 2px; }

.legend { font-size: 13px; color: var(--muted); margin-bottom: 2px; }
h2.split { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
h2.split .small { font-size: 13px; font-weight: 500; flex: 1; }

.summary { padding: 16px 18px; }
.summary h3 { margin: 0 0 6px; font-size: 17px; letter-spacing: -0.01em; }
.summary h4 { margin: 18px 0 6px; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.summary .lead { margin: 0; }
.summary ul { margin: 6px 0 0; padding-left: 20px; }
.summary li { margin: 3px 0; }
.summary ul.todo { list-style: none; padding: 0; }
.summary ul.todo li { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.summary .notes { white-space: pre-wrap; unicode-bidi: plaintext; background: var(--bg); border-radius: 8px; padding: 10px 12px; }
.action { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; margin: 8px 0; display: grid; gap: 4px; }
.action .subject { font-weight: 600; }
.action .body { white-space: pre-wrap; unicode-bidi: plaintext; color: var(--ink); background: var(--bg); border-radius: 8px; padding: 8px 10px; }
.action .why { font-size: 13px; color: var(--muted); }

/* ---- device ---- */
.device { padding: 18px; margin-bottom: 16px; }
.device-top { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); flex: none; }
.dot.on { background: var(--in); box-shadow: 0 0 0 4px color-mix(in srgb, var(--in) 18%, transparent); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px 18px; }
.grid div span { display: block; font-size: 12px; color: var(--muted); font-weight: 550; }
.nets { margin-top: 6px; }
.net { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-top: 1px solid var(--line); }
.net:first-child { border-top: 0; }
.net .name { flex: 1; font-weight: 600; }
.addnet { display: grid; grid-template-columns: 1.3fr 1.3fr 0.6fr auto; gap: 10px; align-items: end; margin-top: 14px; }
.addnet .field { margin: 0; }
.hint { font-size: 13px; color: var(--muted); margin-top: 10px; }

@media (max-width: 640px) {
  header.top { gap: 10px; padding: 0 12px; }
  .brand span { display: none; }
  .addnet { grid-template-columns: 1fr; }
  .line { max-width: 94%; }
}