:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --card: #ffffff;
  --ink: #1a1d21;
  --muted: #6b7280;
  --accent: #2563eb;
  --warn-bg: #fef3c7;
  --warn-ink: #92400e;
  --ok-bg: #dcfce7;
  --ok-ink: #166534;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

header {
  padding: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: baseline;
}

header h1 { font-size: 1.25rem; margin: 0; }

main {
  padding: 0 16px 32px;
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 1px 3px rgb(0 0 0 / 0.08);
}

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat .label { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; }
.stat .value { font-size: 1.5rem; font-weight: 700; }

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}
.badge.ok { background: var(--ok-bg); color: var(--ok-ink); }
.badge.stale { background: var(--warn-bg); color: var(--warn-ink); }

.chart { width: 100%; height: 300px; }
.chart-tall { height: 380px; }
.notice { color: var(--muted); }
.demo {
  font-size: 0.75rem; font-weight: 700; color: var(--warn-ink);
  background: var(--warn-bg); border-radius: 999px; padding: 2px 10px;
}
h2 .hint { font-size: 0.8rem; color: var(--muted); font-weight: 400; }
.auth { margin-left: auto; font-size: 0.85rem; }
.auth a { color: var(--accent); font-weight: 600; }
.auth .who { color: var(--muted); }
.sub { color: var(--muted); font-size: 0.85rem; }
.toggle button {
  border: 1px solid #d1d5db; background: #fff; border-radius: 8px;
  padding: 4px 12px; font-size: 0.85rem; min-height: 44px;
}
.toggle button.on { background: var(--ink); color: #fff; }
nav.tabs { display: flex; gap: 8px; margin-left: auto; }
nav.tabs a {
  text-decoration: none; color: var(--ink); font-weight: 600; font-size: 0.9rem;
  padding: 8px 14px; border-radius: 999px; background: #e5e7eb; min-height: 44px;
  display: inline-flex; align-items: center;
}
nav.tabs a.on { background: var(--ink); color: #fff; }

table.positions { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
table.positions th, table.positions td { text-align: right; padding: 6px 4px; }
table.positions th:first-child, table.positions td:first-child { text-align: left; }
table.positions thead th { color: var(--muted); font-weight: 600; border-bottom: 1px solid #e5e7eb; }

/* Wide tables (orders: 9 columns) scroll on tablets too, not just phones. */
.table-wrap { overflow-x: auto; }

/* Standalone login page (login.html). */
.login-main { display: block; max-width: 420px; margin: 8vh auto 32px; padding: 0 16px; }
.login h2 { margin-top: 0; }
.login label {
  display: block; font-size: 0.8rem; text-transform: uppercase;
  color: var(--muted); margin-bottom: 6px;
}
.login input {
  width: 100%; padding: 12px; border: 1px solid #d1d5db; border-radius: 8px;
  font-size: 1rem; min-height: 44px;
}
.login button {
  margin-top: 12px; width: 100%; padding: 12px; border: 0; border-radius: 8px;
  background: var(--accent); color: #fff; font-size: 1rem; font-weight: 600;
  min-height: 44px; cursor: pointer;
}
.login button:hover { background: #1d4ed8; }
.login .notice { min-height: 1.2em; margin: 10px 0 0; }
.login .back { margin-top: 14px; }

@media (max-width: 640px) {
  .chart { height: 260px; }
  table.positions { font-size: 0.8rem; }
}