:root { --bg: #0d1117; --card: #161b22; --accent: #238636; --warn: #f85149; --neutral: #8b949e; --text: #c9d1d9; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: system-ui, sans-serif; line-height: 1.5; }
.container { max-width: 900px; margin: 0 auto; padding: 20px; }
header { text-align: center; padding: 40px 20px 20px; }
header h1 { font-size: 1.8rem; margin-bottom: 8px; color: #58a6ff; }
header p { color: var(--neutral); font-size: 0.9rem; }
.controls { display: flex; gap: 10px; margin-bottom: 20px; }
input { flex: 1; padding: 12px; background: var(--card); border: 1px solid #30363d; border-radius: 6px; color: var(--text); }
button { padding: 12px 24px; background: var(--accent); border: none; border-radius: 6px; color: white; font-weight: bold; cursor: pointer; }
button:hover { opacity: 0.9; }
.chart-container { height: 400px; width: 100%; border-radius: 8px; overflow: hidden; margin-bottom: 20px; }
.signal-panel { background: var(--card); border: 1px solid #30363d; border-radius: 8px; padding: 20px; }
.signal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; }
.badge { padding: 6px 12px; border-radius: 4px; font-weight: bold; color: white; background: var(--neutral); }
.badge.buy { background: var(--accent); }
.badge.sell { background: var(--warn); }
.badge.hold { background: #6e7681; }
.reasoning { list-style: none; padding-left: 10px; }
.reasoning li::before { content: "• "; color: #58a6ff; }
.reasoning li { margin-bottom: 6px; }
.hidden { display: none !important; }
#loader { text-align: center; padding: 20px; color: #58a6ff; }
.error-msg { color: var(--warn); background: rgba(248,81,73,0.1); padding: 10px; border-radius: 6px; margin-top: 15px; }
footer { text-align: center; padding: 40px 20px; color: var(--neutral); font-size: 0.8rem; }