:root {
  --bg: #0f1115; --panel: #181b22; --line: #272b34; --fg: #e6e8ec;
  --muted: #9aa0ab; --accent: #4f8cff; --ok: #2ecc71; --off: #e0564b; --pill: #2a2f3a;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 14px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--off); }

.topbar { display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; color: var(--fg); }
.topbar nav { display: flex; gap: 16px; align-items: center; }
.who { color: var(--muted); }
.logout { color: var(--muted); }

main { max-width: 1040px; margin: 24px auto; padding: 0 20px; }
h1 { font-size: 22px; } h2 { font-size: 16px; margin-top: 28px; }

.flash { background: #3a2a1a; border: 1px solid #6b4a1f; color: #ffce8a;
  padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }

.btn { display: inline-block; background: var(--pill); color: var(--fg);
  border: 1px solid var(--line); padding: 8px 14px; border-radius: 8px; cursor: pointer; }
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn.primary, .btn.google { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary { margin-top: 8px; }

.ranges { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin: 16px 0 24px; }
.range-card { background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px 14px; min-width: 150px; }
.range-label { font-family: ui-monospace, monospace; font-size: 12px; color: var(--muted); }
.range-stats { font-size: 16px; }

table.grid { width: 100%; border-collapse: collapse; background: var(--panel);
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.grid th, .grid td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.grid th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.grid tr:last-child td { border-bottom: none; }

.pill { display: inline-block; background: var(--pill); border: 1px solid var(--line);
  border-radius: 999px; padding: 1px 9px; font-size: 12px; margin: 1px; font-family: ui-monospace, monospace; }
.pill.ok { border-color: var(--ok); color: var(--ok); }
.pill.off { border-color: var(--off); color: var(--off); }
.pill.local { border-color: var(--ok); color: var(--ok); }
.pill.plivo { border-color: var(--muted); color: var(--muted); }

.form { display: flex; flex-direction: column; gap: 16px; max-width: 540px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.form label { display: flex; flex-direction: column; gap: 4px; }
.form input, .form select { background: var(--bg); color: var(--fg);
  border: 1px solid var(--line); border-radius: 8px; padding: 9px 11px; font-size: 14px; }
.form input:focus, .form select:focus { outline: none; border-color: var(--accent); }

table.kv { border-collapse: collapse; margin: 16px 0; }
.kv th { text-align: left; color: var(--muted); padding: 4px 18px 4px 0; font-weight: 500; }
.line-card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px; margin-bottom: 12px; display: flex; flex-direction: column; gap: 6px; align-items: flex-start; }

.login { max-width: 360px; margin: 12vh auto; text-align: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 36px 28px; }
.login h1 { margin: 0 0 4px; }
.login .btn { margin: 18px 0 12px; }