:root {
  --bg: #f6f7f9;
  --card-bg: #ffffff;
  --text: #1c2430;
  --muted: #67717f;
  --line: #e3e7ec;
  --accent: #2563eb;
  --buy: #0e9f6e;
  --sell: #dc2626;
  --neutral: #6b7280;
  --banner-bg: #fff7e0;
  --banner-text: #7a5b00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161c;
    --card-bg: #1a2029;
    --text: #e8ecf1;
    --muted: #94a0ae;
    --line: #2a323d;
    --accent: #60a5fa;
    --buy: #34d399;
    --sell: #f87171;
    --banner-bg: #2c2618;
    --banner-text: #e5c26b;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.banner {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--banner-bg);
  color: var(--banner-text);
  padding: 8px 16px;
  font-size: 13px;
  text-align: center;
}

.site-header { text-align: center; padding: 28px 16px 8px; }
.site-header h1 { margin: 0; font-size: 28px; letter-spacing: -0.5px; }
.tagline { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

main { max-width: 680px; margin: 0 auto; padding: 12px 16px 48px; }

.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 8px 0;
  -webkit-overflow-scrolling: touch;
}
.tab {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  background: var(--card-bg);
  color: var(--text);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 14px;
  cursor: pointer;
}
.tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.controls {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin: 8px 0 4px;
}
#search {
  flex: 1 1 200px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 14px;
}
.toggle { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; cursor: pointer; }

.meta { color: var(--muted); font-size: 12px; margin: 6px 2px 12px; }

.feed { display: flex; flex-direction: column; gap: 10px; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
}
.card.minor { opacity: 0.75; }
.card-top {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}
.headline { margin: 0; font-size: 15.5px; font-weight: 600; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.badge {
  font-size: 11.5px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.badge.buy { color: var(--buy); border-color: var(--buy); }
.badge.sell { color: var(--sell); border-color: var(--sell); }
.badge.cat { color: var(--accent); border-color: var(--accent); }
.card-actions { margin-top: 8px; font-size: 12.5px; }
.card-actions a { color: var(--accent); text-decoration: none; }
.card-actions a:hover { text-decoration: underline; }

.help {
  display: inline-flex;
  width: 15px; height: 15px;
  align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--muted);
  color: var(--muted);
  font-size: 10px;
  cursor: help;
}

.tooltip {
  position: fixed;
  max-width: 260px;
  background: var(--text);
  color: var(--bg);
  font-size: 12.5px;
  padding: 8px 10px;
  border-radius: 8px;
  z-index: 50;
  pointer-events: none;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 48px 16px;
  font-size: 14px;
}

.load-more {
  display: block;
  margin: 20px auto 0;
  padding: 8px 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
}

.site-footer {
  max-width: 680px;
  margin: 0 auto;
  padding: 16px;
  color: var(--muted);
  font-size: 12.5px;
  border-top: 1px solid var(--line);
}
.site-footer a { color: var(--accent); }
.site-footer dl { margin: 8px 0; }
.site-footer dt { font-weight: 600; margin-top: 8px; }
.site-footer dd { margin: 2px 0 0 0; }