:root {
  --ink: #0e1013;
  --surface: #171a20;
  --surface-2: #1e222a;
  --line: #2a2f3a;
  --text: #e8eaed;
  --text-dim: #8b93a1;
  --accent: #4f7cf2;
  --accent-dim: #2c3a63;
  --good: #46c98e;
  --font-ui: 'Inter', system-ui, sans-serif;
  --font-num: 'IBM Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
}

/* ---------- Login ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-mark {
  font-size: 28px;
  color: var(--accent);
  line-height: 1;
}

.login-card h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}

.login-sub {
  margin: 0 0 8px;
  color: var(--text-dim);
  font-size: 13.5px;
  line-height: 1.5;
}

.login-card label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-dim);
}

.login-card input {
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font-ui);
}

.login-card input:focus {
  outline: none;
  border-color: var(--accent);
}

.login-card button[type='submit'] {
  margin-top: 8px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 11px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.login-card button[type='submit']:hover { filter: brightness(1.08); }

.login-error {
  color: #f26161;
  font-size: 13px;
  margin: 0;
}

/* ---------- Dashboard ---------- */
.dash {
  max-width: 1120px;
  margin: 0 auto;
  padding: 36px 24px 80px;
}

.dash-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 28px;
  gap: 16px;
  flex-wrap: wrap;
}

.dash-header h1 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 700;
}

.dash-header .sub {
  margin: 0;
  color: var(--text-dim);
  font-size: 13.5px;
}

.header-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

select, .ghost-btn {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 13px;
  font-family: var(--font-ui);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.ghost-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Stat row */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: none;
}

.stat-value {
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 600;
}

/* Charts */
.chart-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 14px;
  margin-bottom: 28px;
}

.chart-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
  min-height: 260px;
}

.chart-card h2 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dim);
}

/* Table */
.table-section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 10px;
}

.table-header h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dim);
}

.export-buttons { display: flex; gap: 8px; }

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

thead th {
  text-align: left;
  color: var(--text-dim);
  font-weight: 500;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

tbody td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--surface-2);
  white-space: nowrap;
}

tbody td.mono, thead th.mono { font-family: var(--font-num); }

tbody tr:hover { background: var(--surface-2); }

.empty-state {
  text-align: center;
  color: var(--text-dim);
  padding: 32px 0 8px;
  font-size: 13.5px;
}

@media (max-width: 720px) {
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .chart-grid { grid-template-columns: 1fr; }
}