:root {
  --bg: #f6f5f2;
  --surface: #ffffff;
  --text: #1d2228;
  --muted: #5d6670;
  --border: #dcdad5;
  --accent: #1f3a5f;
  --up: #1e6b45;
  --down: #a3332b;
  --flat: #6b7280;
  --high: #a3332b;
  --medium: #b7791f;
  --low: #9aa1a9;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171b;
    --surface: #1d2126;
    --text: #e7e9ec;
    --muted: #9aa3ad;
    --border: #30353c;
    --accent: #8fb3e0;
    --up: #5cc290;
    --down: #ef8a80;
    --flat: #9aa3ad;
    --high: #ef8a80;
    --medium: #e2b45c;
    --low: #6b7480;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  padding-bottom: calc(64px + env(safe-area-inset-bottom));
}

.app-header { padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--surface); }
.brand { font-size: 1.1rem; letter-spacing: 0.02em; color: var(--accent); }

main { max-width: 680px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.4rem; margin: 0.2em 0 0.6em; }
h2 { font-size: 1.1rem; margin: 0 0 0.5em; }

nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  display: flex; background: var(--surface); border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom);
}
nav button {
  flex: 1; border: 0; background: none; color: var(--muted); padding: 14px 2px; font-size: 0.8rem; border-radius: 0;
}
nav button[aria-current='page'] { color: var(--accent); font-weight: 600; }

button {
  font: inherit; padding: 10px 14px; margin: 4px 8px 4px 0; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer;
}
button.primary { background: var(--accent); color: var(--bg); border-color: var(--accent); }
button.link { border: 0; padding: 0; margin: 0; background: none; color: var(--accent); font-size: 0.85rem; }

label { display: block; margin: 10px 0; font-size: 0.9rem; color: var(--muted); }
input, select, textarea {
  display: block; width: 100%; margin-top: 4px; padding: 10px; font: inherit; font-size: 16px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text);
}
td input { margin: 0; padding: 6px; }
.hint { display: block; font-size: 0.8rem; color: var(--muted); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin: 16px 0; }
.muted, .meta { color: var(--muted); }
.meta { font-size: 0.8rem; margin: 2px 0; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.row select { width: auto; margin: 0; }
.disclaimer { font-size: 0.75rem; color: var(--muted); border-left: 3px solid var(--border); padding-left: 8px; }
.headline p { font-size: 1.05rem; font-weight: 600; margin: 0.3em 0; }

.insights { list-style: none; padding: 0; margin: 16px 0; }
.insight { display: flex; gap: 10px; padding: 12px; margin-bottom: 8px; background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--low); border-radius: 8px; }
.insight p { margin: 0; }
.insight.imp-high { border-left-color: var(--high); }
.insight.imp-medium { border-left-color: var(--medium); }
.insight.disputed { opacity: 0.7; border-style: dashed; }
.dispute-note { color: var(--down); }
.dir { font-size: 0.9rem; line-height: 1.6; }
.dir-up { color: var(--up); }
.dir-down { color: var(--down); }
.dir-flat { color: var(--flat); }

.sources { font-size: 0.8rem; padding-left: 20px; overflow-wrap: anywhere; }
.cite { color: var(--muted); }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 6px 4px; border-bottom: 1px solid var(--border); }

.chat { margin: 16px 0; }
.msg { padding: 10px 12px; border-radius: 10px; margin-bottom: 8px; }
.msg p { margin: 0.3em 0; }
.msg-user { background: var(--accent); color: var(--bg); margin-left: 15%; }
.msg-assistant { background: var(--surface); border: 1px solid var(--border); margin-right: 5%; }
.meter meter { width: 60%; vertical-align: middle; }

.toast {
  position: fixed; left: 16px; right: 16px; bottom: calc(72px + env(safe-area-inset-bottom));
  background: var(--text); color: var(--bg); padding: 12px; border-radius: 8px; text-align: center;
}

#print { display: none; }

@media print {
  body { background: #fff; color: #000; padding: 0; }
  .app-header, main, nav, .toast { display: none !important; }
  #print { display: block; font-size: 11pt; }
  #print h1 { font-size: 16pt; }
  #print .disclaimer { color: #333; }
  #print .headline { font-weight: 600; }
  #print li { margin-bottom: 4pt; }
}