:root {
  --bg: #0b1f3a;
  --bg-soft: #102b52;
  --accent: #1e88e5;
  --accent-dark: #1565c0;
  --text: #1a2330;
  --muted: #5b6b7f;
  --card: #ffffff;
  --line: #e2e8f0;
  --ok: #1b873f;
  --warn: #b8860b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  color: var(--text);
  background: #f4f7fb;
}

header.topbar {
  background: linear-gradient(120deg, var(--bg), var(--bg-soft));
  color: #fff;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { font-weight: 700; font-size: 1.15rem; letter-spacing: 0.3px; }
.brand span { opacity: 0.7; font-weight: 400; }

nav.topnav a {
  color: #dce8f7;
  text-decoration: none;
  margin-right: 1.1rem;
  font-size: 0.95rem;
}
nav.topnav a:hover, nav.topnav a.active { color: #fff; text-decoration: underline; }

.session { font-size: 0.85rem; display: flex; align-items: center; gap: 0.75rem; }
.session button { font-size: 0.8rem; padding: 0.3rem 0.7rem; }

main { max-width: 1800px; margin: 1.5rem auto; padding: 0 1.25rem; }

h1 { font-size: 1.5rem; margin: 0.3rem 0 1rem; }
h2 { font-size: 1.15rem; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(16, 43, 82, 0.06);
}

.login-wrap { max-width: 380px; margin: 8vh auto; }
.login-wrap h1 { text-align: center; }

label { display: block; font-size: 0.85rem; color: var(--muted); margin: 0.6rem 0 0.25rem; }
input, select {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-size: 0.95rem;
}

button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 7px;
  padding: 0.55rem 1rem;
  font-size: 0.95rem;
  cursor: pointer;
}
button:hover { background: var(--accent-dark); }
button.secondary { background: #eef2f7; color: var(--text); }
button:disabled { opacity: 0.6; cursor: not-allowed; }

.filters { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: end; margin-bottom: 1rem; }
.filters > div { flex: 1 1 150px; }
.filters label { margin-top: 0; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.6rem 0.7rem; border-bottom: 1px solid var(--line); font-size: 0.92rem; }
th { color: var(--muted); font-weight: 600; }
tr.clickable { cursor: pointer; }
tr.clickable:hover { background: #f1f6fc; }

.price { font-weight: 700; }
.badge { display: inline-block; padding: 0.1rem 0.55rem; border-radius: 999px; font-size: 0.75rem; }
.badge.ok { background: #e6f4ea; color: var(--ok); }
.badge.off { background: #fdecea; color: #c0392b; }
.badge.upd { background: #e8f0fe; color: #1a56db; }
.change { font-variant-numeric: tabular-nums; font-weight: 600; }
.change.drop { color: var(--ok); }
.change.rise { color: #c0392b; }

.msg { padding: 0.6rem 0.8rem; border-radius: 7px; margin: 0.75rem 0; font-size: 0.9rem; }
.msg.error { background: #fdecea; color: #b71c1c; }
.msg.success { background: #e6f4ea; color: var(--ok); }
.muted { color: var(--muted); }
.row-actions { display: flex; gap: 0.75rem; align-items: center; margin-bottom: 1rem; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 0.35rem 1rem; margin: 0.5rem 0 0; }
.kv dt { color: var(--muted); font-size: 0.85rem; }
.kv dd { margin: 0; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 0.75rem; margin: 1rem 0; }
.stat { background: var(--bg-soft); color: #fff; border-radius: 9px; padding: 0.8rem; }
.stat .n { font-size: 1.4rem; font-weight: 700; }
.stat .l { font-size: 0.75rem; opacity: 0.8; }
a.back { color: var(--accent-dark); text-decoration: none; font-size: 0.9rem; }
.hidden { display: none; }
label.inline { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.8rem; color: var(--text); }
label.inline input { width: auto; margin: 0; }
.pager { display: flex; gap: 0.5rem; align-items: center; margin-top: 1rem; }