:root {
  --bg: #0f1320;
  --bg-card: #181d2e;
  --bg-card-2: #1f2438;
  --border: #2a3050;
  --fg: #e4e8f1;
  --fg-muted: #9ba3b4;
  --accent: #7aa2ff;
  --ok: #7be29e;
  --warn: #f6c177;
  --bad: #ff6b6b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---------- top bar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 20px; padding-bottom: 12px;
  gap: 16px; flex-wrap: wrap;
}
.title h1 { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: -0.01em; }
.subtitle { margin: 2px 0 0; color: var(--fg-muted); font-size: 13px; }
.status { display: flex; align-items: center; gap: 14px; }

.pill {
  padding: 4px 12px; border-radius: 999px; font-weight: 600; font-size: 13px;
  background: #243054; color: var(--fg);
  border: 1px solid var(--border);
}
.pill[data-state="NORMAL"]  { background: rgba(123,226,158,0.15); color: var(--ok);  border-color: rgba(123,226,158,0.4); }
.pill[data-state="SUSPECT"] { background: rgba(246,193,119,0.15); color: var(--warn); border-color: rgba(246,193,119,0.4); }
.pill[data-state="ATTACK"]  { background: rgba(255,107,107,0.18); color: var(--bad);  border-color: rgba(255,107,107,0.5); }
.pill[data-phase="attack"]  { background: rgba(255,107,107,0.18); color: var(--bad);  border-color: rgba(255,107,107,0.5); }
.pill[data-phase="normal"], .pill[data-phase="recovery"] { background: rgba(123,226,158,0.15); color: var(--ok); border-color: rgba(123,226,158,0.4); }
.pill[data-phase="idle"], .pill[data-phase="done"] { background: #243054; color: var(--fg-muted); }

.kpi { text-align: right; }
.kpi-label { font-size: 11px; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.kpi-value { font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; }

/* ---------- tabs ---------- */
.tabs {
  display: flex; align-items: center; gap: 4px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0; padding-top: 0;
  margin-bottom: 16px;
}
.tab {
  background: none; border: none; color: var(--fg-muted);
  padding: 10px 16px; cursor: pointer; font-size: 14px;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab:hover { color: var(--fg); }
.tab.active { color: var(--fg); border-bottom-color: var(--accent); font-weight: 600; }
.tabs .spacer { flex: 1; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---------- cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 16px;
}
.card h2 { margin: 0 0 12px; font-size: 16px; font-weight: 600; }
.card h3 { margin: 0 0 10px; font-size: 14px; font-weight: 600; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.card-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 12px; }

.chart-wrap { position: relative; height: 220px; }

.split { display: grid; grid-template-columns: 1fr 2fr; gap: 24px; }
@media (max-width: 800px) { .split { grid-template-columns: 1fr; } }

/* ---------- metric grid ---------- */
.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px; margin-bottom: 8px;
}
.metric {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 12px;
}
.metric-label { color: var(--fg-muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; }
.metric-value { font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; margin-top: 2px; }

/* ---------- table ---------- */
.toplist { padding-left: 18px; margin: 0; font-variant-numeric: tabular-nums; }
.toplist li { padding: 2px 0; }

.table-wrap { max-height: 280px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; }
.tbl { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.tbl th, .tbl td { padding: 6px 10px; text-align: left; font-size: 13px; }
.tbl thead th { background: var(--bg-card-2); position: sticky; top: 0; color: var(--fg-muted); font-weight: 600; border-bottom: 1px solid var(--border); }
.tbl tbody tr:nth-child(even) { background: rgba(255,255,255,0.02); }
.tbl tbody tr[data-state="ATTACK"]  td:nth-child(2) { color: var(--bad);  font-weight: 600; }
.tbl tbody tr[data-state="SUSPECT"] td:nth-child(2) { color: var(--warn); font-weight: 600; }
.tbl tbody tr[data-state="NORMAL"]  td:nth-child(2) { color: var(--ok); }

/* ---------- forms ---------- */
.form { display: flex; flex-direction: column; gap: 12px; }
.form label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--fg-muted); }
.form label span { color: var(--fg-muted); }
.form input, .form textarea {
  background: var(--bg-card-2); color: var(--fg); border: 1px solid var(--border);
  border-radius: 6px; padding: 8px 10px; font: inherit; font-variant-numeric: tabular-nums;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--accent); }
.form textarea { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; resize: vertical; }
.form input[type="range"] { padding: 0; }
.form input[disabled] { opacity: 0.5; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
.form-actions { display: flex; align-items: center; gap: 10px; }

.btn {
  background: var(--bg-card-2); color: var(--fg); border: 1px solid var(--border);
  padding: 8px 14px; border-radius: 6px; cursor: pointer; font: inherit;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: #0a0e1a; border-color: var(--accent); font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; }

.form-msg { font-size: 13px; margin-left: 6px; }
.form-msg.ok  { color: var(--ok); }
.form-msg.err { color: var(--bad); }

/* ---------- loadtest status ---------- */
.loadtest-status { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--border); display: flex; flex-direction: column; gap: 8px; }
.lt-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.lt-label { color: var(--fg-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.lt-row b { color: var(--fg); font-variant-numeric: tabular-nums; }

.progress { background: var(--bg-card-2); border: 1px solid var(--border); border-radius: 999px; height: 8px; overflow: hidden; }
.progress-bar { background: var(--accent); height: 100%; transition: width 0.4s ease; }
.progress-bar[data-phase="attack"] { background: var(--bad); }
.progress-bar[data-phase="normal"], .progress-bar[data-phase="recovery"] { background: var(--ok); }

/* ---------- misc ---------- */
.muted { color: var(--fg-muted); }
.small { font-size: 12px; }
code { background: var(--bg-card-2); padding: 1px 6px; border-radius: 4px; font-size: 12px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.footer { padding: 18px 20px 24px; color: var(--fg-muted); font-size: 12px; }