:root {
  --bg: #0f1115;
  --panel: #181b22;
  --border: #262b35;
  --text: #e6e9ef;
  --muted: #8b93a3;
  --ds: #4f8cff;
  --tj: #34d399;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.hidden { display: none !important; }

/* Login */
.login {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login form {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: min(360px, 90vw);
  text-align: center;
}
.login h1 { margin: 0 0 20px; font-size: 20px; }
.login input, .login button {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 15px;
}
.login input { background: #0c0e12; color: var(--text); margin-bottom: 12px; }
.login button { background: var(--ds); color: #fff; border: none; cursor: pointer; font-weight: 600; }
.error { color: #f87171; min-height: 1.2em; margin: 12px 0 0; font-size: 13px; }

/* Dashboard */
main {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
header h1 { font-size: 22px; margin: 0; }
#logout {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
}
#logout:hover { color: var(--text); }

h2 { font-size: 16px; font-weight: 600; margin: 0 0 14px; }
.sub { color: var(--muted); font-weight: 400; font-size: 13px; }

/* Controls */
.controls {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.controls label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}
.controls select {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 14px;
  cursor: pointer;
}

section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

/* Moving average */
.ma-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.ma-cell {
  background: #0c0e12;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ma-label { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; }
.ma-value { font-size: 22px; font-weight: 700; }
.ma-value .gbp { color: var(--muted); font-size: 14px; font-weight: 500; }

.chart-wrap { position: relative; height: 320px; }

@media (max-width: 560px) {
  .ma-grid { grid-template-columns: 1fr; }
  .chart-wrap { height: 260px; }
}