:root {
  --bg: #0b1220;
  --bg-card: #121a2b;
  --border: #243049;
  --text: #e8eefc;
  --muted: #93a0b8;
  --accent: #f7931a;
  --accent-soft: rgba(247, 147, 26, 0.15);
  --history: #5b8def;
  --forecast: #f7931a;
  --up: #3dd68c;
  --down: #f07178;
  --danger: #f07178;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(247, 147, 26, 0.12), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(91, 141, 239, 0.12), transparent 50%),
    var(--bg);
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 48px;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

h1 {
  margin: 0 0 6px;
  font-size: 1.75rem;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.status {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-size: 0.85rem;
  white-space: nowrap;
}

.status.ok {
  border-color: rgba(61, 214, 140, 0.4);
  color: var(--up);
  background: rgba(61, 214, 140, 0.08);
}

.status.err {
  border-color: rgba(240, 113, 120, 0.45);
  color: var(--danger);
  background: rgba(240, 113, 120, 0.08);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  margin-bottom: 16px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  align-items: flex-end;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

input[type="number"] {
  width: 120px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0d1524;
  color: var(--text);
  font-size: 1rem;
}

input[type="number"]:focus {
  outline: 2px solid rgba(247, 147, 26, 0.45);
  border-color: var(--accent);
}

button.primary {
  border: none;
  border-radius: 10px;
  padding: 11px 18px;
  background: linear-gradient(135deg, #f7931a, #e07a00);
  color: #111;
  font-weight: 650;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.12s ease, filter 0.12s ease;
}

button.primary:hover:not(:disabled) {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

button.primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.metric {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.metric .label {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  margin-bottom: 4px;
}

.metric .value {
  font-size: 1.1rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.metric .value.up { color: var(--up); }
.metric .value.down { color: var(--down); }

.chart-wrap {
  position: relative;
  min-height: 360px;
}

.chart-hint {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  color: var(--muted);
  pointer-events: none;
}

.chart-hint.hidden {
  display: none;
}

.table-wrap h2 {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.85rem;
}

.footer {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  margin-top: 8px;
}

@media (max-width: 720px) {
  .header {
    flex-direction: column;
  }

  .metrics {
    grid-template-columns: 1fr 1fr;
  }

  .chart-wrap {
    min-height: 280px;
  }
}