:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #1f2937;
  --muted: #667085;
  --line: #d9dee7;
  --accent: #0f766e;
  --accent-2: #2563eb;
  --warn: #fff4d6;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  display: grid;
  grid-template-columns: 230px 1fr;
  min-height: 100vh;
}
.sidebar {
  background: #111827;
  color: #fff;
  padding: 24px 18px;
}
.brand {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 24px;
}
nav { display: grid; gap: 8px; }
nav a {
  color: #d1d5db;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 6px;
}
nav a:hover { background: #1f2937; color: #fff; }
.main { padding: 28px; min-width: 0; }
.page-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 22px;
}
h1, h2 { margin: 0 0 8px; letter-spacing: 0; }
p { color: var(--muted); margin: 0; }
.muted { color: var(--muted); font-size: 12px; }
button {
  appearance: none;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  padding: 9px 12px;
  cursor: pointer;
}
button:hover { filter: brightness(0.95); }
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  padding: 9px 12px;
  text-decoration: none;
}
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.metric, .panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}
.metric span { color: var(--muted); display: block; font-size: 13px; }
.metric strong { display: block; font-size: 24px; margin-top: 6px; }
.panel { margin-bottom: 18px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; background: #fafbfc; }
.warn-row { background: var(--warn); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.stats { display: grid; grid-template-columns: repeat(2, minmax(160px, 1fr)); gap: 12px; }
.stats div { border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.stats dt { color: var(--muted); font-size: 13px; }
.stats dd { margin: 4px 0 0; font-weight: 700; }
.upload-grid { display: grid; grid-template-columns: repeat(4, minmax(180px, 1fr)); gap: 12px; }
.upload-form { display: grid; gap: 12px; }
.result-box, pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: #0b1020;
  color: #dbeafe;
  border-radius: 8px;
  padding: 14px;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 10px;
  font: inherit;
  color: var(--text);
}
textarea { min-height: 80px; }
.wide { grid-column: 1 / -1; }
.score-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(70px, 1fr));
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}
.gap-text { margin-top: 8px; color: #9f1239; }
.news-list { display: grid; gap: 10px; padding-left: 18px; }
.news-list li span { color: var(--muted); display: block; font-size: 12px; margin-top: 2px; }
.stock-link { color: var(--accent-2); text-decoration: none; font-weight: 600; }
.stock-link:hover { text-decoration: underline; }

@media (max-width: 900px) {
  body { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  nav { grid-template-columns: repeat(2, 1fr); }
  .metrics-grid, .upload-grid, .two-col, .form-grid { grid-template-columns: 1fr; }
}