:root {
  --bg: #0a0e14;
  --panel: #12171f;
  --panel-raised: #161c26;
  --border: #232b36;
  --text: #e6eaf0;
  --text-muted: #7c8798;
  --signal: #35e0a6;
  --signal-dim: #1c8a63;
  --amber: #ff8a3d;
  --blue: #5ea1ff;
  --danger: #ff5c5c;
  --radius: 10px;
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }

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

/* ---------- Login page ---------- */

.login-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
}

@media (max-width: 860px) {
  .login-shell { grid-template-columns: 1fr; }
  .login-visual { display: none; }
}

.login-visual {
  background:
    radial-gradient(circle at 20% 20%, rgba(53,224,166,0.10), transparent 45%),
    var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 48px;
}

.brand-mark {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(53,224,166,0.15);
}

.pulse-wrap {
  margin: auto 0;
}

.pulse-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.pulse-line {
  stroke: var(--signal);
  stroke-width: 1.6;
  fill: none;
  filter: drop-shadow(0 0 6px rgba(53,224,166,0.45));
}

.pulse-dot {
  fill: var(--signal);
}

.visual-quote {
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.3;
  color: var(--text);
  max-width: 34ch;
}

.visual-sub {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 14px;
}

.login-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

.login-card {
  width: 100%;
  max-width: 380px;
}

.login-card h1 {
  font-family: var(--font-display);
  font-size: 26px;
  margin: 0 0 6px;
}

.login-card .subhead {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0 0 32px;
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.field input {
  width: 100%;
  background: var(--panel-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease;
}

.field input:focus {
  border-color: var(--signal);
}

.btn-primary {
  width: 100%;
  background: var(--signal);
  color: #06120d;
  border: none;
  border-radius: 8px;
  padding: 13px 14px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.05s ease;
}

.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary:focus-visible,
.field input:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.form-error {
  background: rgba(255,92,92,0.1);
  border: 1px solid rgba(255,92,92,0.35);
  color: #ff9b9b;
  font-size: 13px;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 18px;
  display: none;
}

.form-error.show { display: block; }

.login-footnote {
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

/* ---------- Dashboard ---------- */

.app-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
}

.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
}

.sidebar .brand-mark { margin-bottom: 36px; }

.nav-group { margin-bottom: 24px; }

.nav-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding: 0 10px;
}

.nav-item {
  display: block;
  padding: 9px 10px;
  border-radius: 7px;
  font-size: 13.5px;
  color: var(--text-muted);
  cursor: pointer;
}

.nav-item.active {
  background: var(--panel-raised);
  color: var(--text);
}

.sidebar-footer {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 12px;
}

.logout-link { color: var(--text-muted); cursor: pointer; }
.logout-link:hover { color: var(--danger); }

.main {
  padding: 28px 32px 60px;
  max-width: 1180px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
  gap: 16px;
  flex-wrap: wrap;
}

.topbar h1 {
  font-family: var(--font-display);
  font-size: 22px;
  margin: 0;
}

.topbar-controls { display: flex; gap: 10px; align-items: center; }

select, .live-badge {
  background: var(--panel-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13px;
  padding: 9px 12px;
}

.live-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
}

.live-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 3px rgba(53,224,166,0.18);
  animation: livepulse 1.6s ease-in-out infinite;
}

@keyframes livepulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}

@media (max-width: 900px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }

.kpi-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.kpi-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.kpi-value {
  font-family: var(--font-display);
  font-size: 26px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 18px;
}

.panel-title {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding: 0 0 8px;
}
tbody td { padding: 9px 0; border-bottom: 1px solid var(--border); }
tbody tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-family: var(--font-mono); }

.bar-track {
  background: var(--panel-raised);
  border-radius: 4px;
  height: 6px;
  overflow: hidden;
  margin-top: 4px;
}
.bar-fill { background: var(--signal); height: 100%; }

.empty-state {
  color: var(--text-muted);
  font-size: 13px;
  padding: 24px 0;
  text-align: center;
}

.chart-wrap { width: 100%; overflow-x: auto; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}