:root {
  --bg: #0b0e13;
  --bg-grad: radial-gradient(1200px 600px at 80% -10%, #12202e 0%, transparent 60%), var(--bg);
  --surface: #141a22;
  --surface2: #1b232e;
  --surface3: #212b38;
  --border: #263041;
  --border-soft: #1e2733;
  --text: #d5dae2;
  --text-dim: #7a8494;
  --text-faint: #59626f;
  --accent: #4c9aff;
  --accent-dim: #1d3a63;
  --ok: #35c46b;
  --warn: #e0a726;
  --alert: #f0524d;
  --mono: "IBM Plex Mono", "SF Mono", "Consolas", ui-monospace, monospace;
  --sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --radius: 8px;
  --radius-sm: 5px;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.22);
  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--sans);
  background: var(--bg-grad);
  background-attachment: fixed;
  color: var(--text);
  font-size: 13px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

/* Scrollbars */
* { scrollbar-width: thin; scrollbar-color: var(--border) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: var(--border); border-radius: 6px; border: 2px solid transparent; background-clip: padding-box; }
*::-webkit-scrollbar-thumb:hover { background: var(--surface3); }

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 20px;
  height: 52px;
  background: rgba(17, 22, 30, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.brand { display: flex; align-items: center; gap: 9px; }
.brand-mark {
  color: var(--accent);
  font-size: 18px;
  filter: drop-shadow(0 0 8px rgba(76,154,255,.5));
}
.brand-name { font-weight: 700; letter-spacing: -0.02em; font-size: 14px; }
.brand-tag {
  color: var(--text-dim);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  padding: 2px 7px;
  border: 1px solid var(--border);
  border-radius: 20px;
}

.nav { display: flex; gap: 2px; flex: 1; flex-wrap: wrap; }
.nav a {
  color: var(--text-dim);
  text-decoration: none;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 500;
  transition: color .15s ease, background .15s ease;
  position: relative;
}
.nav a:hover { color: var(--text); background: var(--surface2); }
.nav a.active { color: #fff; background: var(--accent-dim); }
.nav a.active::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: -1px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.status-pill {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.status-pill::before {
  content: "";
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--text-faint);
}
.status-pill.live { color: var(--ok); border-color: rgba(53,196,107,.4); background: rgba(53,196,107,.08); }
.status-pill.live::before { background: var(--ok); box-shadow: 0 0 8px var(--ok); animation: pulse 2s infinite; }
.status-pill.dead { color: var(--alert); border-color: rgba(240,82,77,.4); background: rgba(240,82,77,.08); }
.status-pill.dead::before { background: var(--alert); }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

/* ---------- Layout ---------- */
.content { padding: 22px 24px 48px; max-width: 1440px; margin: 0 auto; }

.panel-grid { display: flex; flex-direction: column; gap: 16px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.panel.wide { width: 100%; }

.panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 13px 16px;
  border-bottom: 1px solid var(--border-soft);
  background: linear-gradient(180deg, rgba(255,255,255,.015), transparent);
}
.panel-head h2 {
  font-size: 11.5px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text); margin: 0;
}
.panel-head .btn { margin-left: auto; }
.panel-hint { font-size: 11px; color: var(--text-dim); }

/* ---------- Stat cards ---------- */
.stat-row { display: flex; gap: 1px; background: var(--border-soft); border-radius: var(--radius); overflow: hidden; }
.stat {
  flex: 1;
  background: var(--surface);
  padding: 16px 18px;
  min-width: 130px;
  transition: background .15s ease;
}
.stat:hover { background: var(--surface2); }
.stat-label { display: block; font-size: 10px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-dim); margin-bottom: 6px; }
.stat-hint { display: block; font-size: 9.5px; color: var(--text-faint); margin-top: 3px; }
.stat-val { font-family: var(--mono); font-size: 25px; font-weight: 600; color: var(--text); letter-spacing: -0.02em; }
.stat-val.alert-val { color: var(--alert); }
.stat-unit { font-family: var(--mono); font-size: 11px; color: var(--text-dim); margin-left: 4px; }

/* ---------- Notices ---------- */
.config-notice {
  margin-bottom: 16px;
  padding: 13px 16px;
  border-radius: var(--radius);
  background: rgba(224, 167, 38, 0.1);
  border: 1px solid rgba(224, 167, 38, 0.3);
  border-left: 3px solid var(--warn);
  color: #f0c860;
  font-size: 12.5px;
}

/* ---------- Tables ---------- */
.data-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.data-table th {
  text-align: left;
  padding: 9px 16px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  background: var(--surface2);
  position: sticky;
  top: 52px;
  z-index: 1;
}
.data-table td {
  padding: 9px 16px;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text);
}
.data-table tbody tr { transition: background .12s ease; }
.data-table tbody tr:last-child td, .data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--surface2); }

/* ---------- Tags ---------- */
.tag {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 20px;
  font-size: 9.5px;
  font-family: var(--mono);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
}
.tag-volume { background: rgba(224,167,38,.14); color: var(--warn); border-color: rgba(224,167,38,.3); }
.tag-syn_flood { background: rgba(240,82,77,.14); color: #f97583; border-color: rgba(240,82,77,.3); }
.tag-udp_flood { background: rgba(76,154,255,.14); color: var(--accent); border-color: rgba(76,154,255,.3); }
.tag-distributed { background: rgba(188,140,255,.14); color: #bc8cff; border-color: rgba(188,140,255,.3); }
.tag-learned { background: rgba(53,196,107,.14); color: var(--ok); border-color: rgba(53,196,107,.3); }
.tag-baseline { background: rgba(224,167,38,.12); color: var(--warn); border-color: rgba(224,167,38,.25); }
.tag-capturing { background: rgba(224,167,38,.14); color: var(--warn); border-color: rgba(224,167,38,.3); }
.tag-icmp_flood { background: rgba(240,82,77,.12); color: #f97583; border-color: rgba(240,82,77,.25); }
.tag-ack_flood { background: rgba(165,180,252,.14); color: #a5b4fc; border-color: rgba(165,180,252,.3); }
.tag-dns_amp { background: rgba(126,231,135,.14); color: #7ee787; border-color: rgba(126,231,135,.3); }
.tag-rst_flood { background: rgba(255,166,87,.14); color: #ffa657; border-color: rgba(255,166,87,.3); }
.tag-fin_flood { background: rgba(255,155,206,.14); color: #ff9bce; border-color: rgba(255,155,206,.3); }
.tag-tcp_anomaly { background: rgba(255,123,114,.14); color: #ff7b72; border-color: rgba(255,123,114,.3); }
.tag-frag_flood { background: rgba(210,224,126,.14); color: #d2e07e; border-color: rgba(210,224,126,.3); }
.tag-other_flood { background: rgba(184,192,204,.12); color: #b8c0cc; border-color: rgba(184,192,204,.25); }
.vector-legend { display: flex; flex-wrap: wrap; gap: 5px; padding: 10px 16px; opacity: 0.9; border-bottom: 1px solid var(--border-soft); }

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: var(--surface2);
  color: var(--text);
  transition: all .15s ease;
  white-space: nowrap;
}
.btn:hover { border-color: var(--accent); color: var(--accent); background: var(--surface3); }
.btn:active { transform: translateY(1px); }
.btn-warn { background: rgba(224,167,38,.12); border-color: rgba(224,167,38,.4); color: var(--warn); }
.btn-warn:hover { background: rgba(224,167,38,.2); border-color: var(--warn); color: var(--warn); }
.btn-sm { padding: 4px 10px; font-size: 11px; }
.btn-danger { color: var(--alert); border-color: rgba(240,82,77,.35); background: rgba(240,82,77,.08); }
.btn-danger:hover { background: rgba(240,82,77,.18); border-color: var(--alert); color: var(--alert); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; width: 100%; font-weight: 600; }
.btn-primary:hover { background: #3d87ee; border-color: #3d87ee; color: #fff; }

/* ---------- Forms ---------- */
.form { padding: 16px; display: flex; flex-direction: column; gap: 14px; }
.form label { display: flex; flex-direction: column; gap: 5px; font-size: 10.5px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 500; }
.form label.checkbox { flex-direction: row; align-items: center; gap: 8px; text-transform: none; letter-spacing: 0; font-size: 12px; color: var(--text); }
.form label.checkbox input { width: auto; }
.form input, .form textarea {
  font-family: var(--mono);
  font-size: 13px;
  padding: 9px 11px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form input::placeholder, .form textarea::placeholder { color: var(--text-faint); }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(76,154,255,.15); }
.form-hint { font-size: 11.5px; color: var(--text-dim); line-height: 1.6; }
.form-hint code, code {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--accent);
  word-break: break-all;
}
.form-result { padding: 12px 16px; font-family: var(--mono); font-size: 12px; border-top: 1px solid var(--border-soft); }
.form-result.ok { color: var(--ok); }
.hidden { display: none; }

a.link { color: var(--accent); text-decoration: none; }
a.link:hover { text-decoration: underline; }

.empty-row td { text-align: center; color: var(--text-dim); font-family: var(--sans); padding: 28px; }

/* ---------- Login ---------- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-box {
  width: 380px;
  max-width: 100%;
  padding: 36px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.login-box .brand { font-size: 20px; font-weight: 700; letter-spacing: -0.02em; justify-content: center; margin-bottom: 4px; }
.login-box .brand .brand-mark { font-size: 22px; }
.login-sub { color: var(--text-dim); font-size: 12.5px; margin: 10px 0 22px; text-align: center; }
.login-box .form { padding: 0; }

/* ---------- Alert detail ---------- */
.alert-status { font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.05em; padding: 3px 8px; border-radius: 20px; font-weight: 600; }
.alert-status.active { background: rgba(240,82,77,.15); color: var(--alert); border: 1px solid rgba(240,82,77,.3); }
.alert-status.ended { background: rgba(53,196,107,.12); color: var(--ok); border: 1px solid rgba(53,196,107,.3); }
.alert-row-clickable { cursor: pointer; }
.alert-row-clickable.expanded { background: var(--surface2); }
.alert-row-clickable.expanded td { border-bottom-color: transparent; }
.vector-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.alert-detail-row td { background: var(--bg); padding: 0 !important; border-bottom: 2px solid var(--accent-dim); }
.alert-detail-panel { padding: 18px; font-family: var(--sans); font-size: 12px; line-height: 1.6; }
.alert-detail-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; margin-top: 12px; }
.alert-detail-box { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.alert-detail-box h4 { margin: 0 0 10px; font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); }
.alert-detail-box table { width: 100%; font-size: 11px; }
.alert-detail-box table td { padding: 4px 0; border: none; font-family: var(--mono); }
.alert-summary-pre { white-space: pre-wrap; font-family: var(--mono); font-size: 11px; color: var(--text-dim); margin: 0; max-height: 200px; overflow: auto; background: var(--bg); border-radius: var(--radius-sm); padding: 10px; }
.btn-expand { background: none; border: 1px solid var(--border); color: var(--text-dim); padding: 3px 9px; border-radius: var(--radius-sm); cursor: pointer; font-size: 10px; transition: all .15s ease; }
.btn-expand:hover { color: var(--accent); border-color: var(--accent); }

.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 14px; align-items: end; }

/* ---------- Dashboard v2 (clean) ---------- */
.kpi-strip {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 16px;
}
.kpi {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; display: flex; flex-direction: column; gap: 3px;
}
.kpi-label { font-size: 10px; text-transform: uppercase; letter-spacing: .07em; color: var(--text-dim); }
.kpi-val { font-family: var(--mono); font-size: 22px; font-weight: 600; letter-spacing: -.02em; }
.kpi-val.ok { color: var(--ok); }
.kpi-val.warn { color: var(--warn); }
.kpi-val.danger { color: var(--alert); }
.kpi-sub { font-size: 10px; color: var(--text-faint); }
.kpi-attack .kpi-val { color: var(--alert); }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); overflow: hidden; margin-bottom: 16px;
}
.card-head {
  display: flex; align-items: baseline; gap: 10px; padding: 13px 16px;
  border-bottom: 1px solid var(--border-soft);
  background: linear-gradient(180deg, rgba(255,255,255,.015), transparent);
}
.card-head h2 { font-size: 11.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; margin: 0; }
.card-hint { font-size: 11px; color: var(--text-dim); margin-left: auto; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Bandwidth chart */
.chart-area { padding: 12px 16px 0; position: relative; }
.bw-plot { position: relative; }
.bw-cursor { position: absolute; top: 12px; bottom: 0; width: 1px; background: var(--text-dim); pointer-events: none; z-index: 2; }
.bw-svg { width: 100%; height: 220px; display: block; }
.donut-svg circle { cursor: pointer; transition: opacity .12s ease; }
.donut-svg:hover circle { opacity: .55; }
.donut-svg circle:hover { opacity: 1; }

/* Floating chart tooltip */
.chart-tip {
  position: fixed; z-index: 999; pointer-events: none;
  background: var(--surface3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); box-shadow: var(--shadow);
  padding: 8px 10px; font-size: 11px; color: var(--text); min-width: 160px;
}
.chart-tip .tt-time { font-family: var(--mono); font-size: 10px; color: var(--text-dim); margin-bottom: 5px; }
.chart-tip .tt-row { display: flex; align-items: center; gap: 6px; padding: 2px 0; }
.chart-tip .tt-row b { margin-left: auto; font-family: var(--mono); }
.chart-tip .tt-row span { font-family: var(--mono); color: var(--text-dim); font-size: 10px; min-width: 68px; text-align: right; }
.grid-line { stroke: var(--border-soft); stroke-width: 1; }
.area-total { fill: rgba(79,140,255,.14); }
.area-attack { fill: rgba(240,82,77,.20); }
.line-total { fill: none; stroke: #4f8cff; stroke-width: 1.5; }
.line-attack { fill: none; stroke: #f0524d; stroke-width: 1.5; }
.bw-axis { display: flex; justify-content: space-between; padding: 2px 16px 0; font-family: var(--mono); font-size: 10px; color: var(--text-faint); }
.chart-empty { padding: 40px; text-align: center; color: var(--text-faint); font-size: 12px; }
.legend { display: flex; gap: 18px; padding: 8px 16px 14px; font-size: 11px; color: var(--text-dim); }
.legend .lg { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 9px; height: 9px; border-radius: 2px; display: inline-block; }
.dot-total { background: #4f8cff; }
.dot-attack { background: #f0524d; }

/* Donuts */
.donut-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; padding: 18px 16px; }
.donut { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.donut-svg { width: 120px; height: 120px; }
.donut-center { fill: var(--text); font-size: 11px; font-weight: 600; text-anchor: middle; font-family: var(--sans); }
.donut-pct { fill: var(--accent); font-size: 10px; text-anchor: middle; font-family: var(--mono); }
.donut-title { font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); }

/* Mini lists (countries / subnets) */
.mini-list { padding: 10px 16px 14px; display: flex; flex-direction: column; gap: 8px; min-height: 60px; }
.mini-row { display: grid; grid-template-columns: 20px 1fr 90px 54px; align-items: center; gap: 10px; }
.mini-flag { font-size: 14px; }
.mini-name { font-size: 12px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mini-name.mono { font-family: var(--mono); font-size: 11.5px; }
.mini-val { font-family: var(--mono); font-size: 11px; color: var(--text-dim); text-align: right; }
.sb-track { height: 6px; background: var(--border-soft); border-radius: 4px; overflow: hidden; }
.sb-track i { display: block; height: 100%; border-radius: 4px; }
.empty { color: var(--text-faint); font-size: 12px; padding: 10px 0; }

/* Detection signals + size bars (event detail) */
.signals { display: flex; flex-direction: column; gap: 10px; }
.signal-top { display: flex; justify-content: space-between; font-size: 11px; color: var(--text-dim); margin-bottom: 4px; }
.meter { height: 7px; background: var(--border-soft); border-radius: 4px; overflow: hidden; }
.meter i { display: block; height: 100%; border-radius: 4px; }
.m-conf { background: var(--accent); }
.m-spoof { background: #f0524d; }
.m-ent { background: #a78bfa; }
.hbars { display: flex; flex-direction: column; gap: 6px; }
.hbar { display: grid; grid-template-columns: 78px 1fr 48px; align-items: center; gap: 8px; }
.hbar-lbl { font-family: var(--mono); font-size: 10px; color: var(--text-dim); }
.hbar-track { height: 10px; background: var(--border-soft); border-radius: 3px; overflow: hidden; }
.hbar-track i { display: block; height: 100%; background: linear-gradient(90deg, #4f8cff, #38bdf8); border-radius: 3px; }
.hbar-val { font-family: var(--mono); font-size: 10px; color: var(--text-dim); text-align: right; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .kpi-strip { grid-template-columns: repeat(3, 1fr); }
  .donut-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .topbar { height: auto; flex-wrap: wrap; padding: 10px 14px; gap: 10px; }
  .data-table th { top: 0; }
  .content { padding: 16px 14px 40px; }
  .stat-row { flex-wrap: wrap; }
  .stat { min-width: calc(50% - 1px); }
  .kpi-strip { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}