:root { color-scheme: light dark }
* { box-sizing: border-box }
body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; margin: 0; padding: 0; background: #0a0a0a; color: #eaeaea }
.site-header { padding: 16px; border-bottom: 1px solid #222 }
.site-nav { margin-top: 8px; display: flex; gap: 12px }
.site-nav a { color: inherit; text-decoration: none; padding: 6px 10px; border: 1px solid #222; border-radius: 6px }
.site-nav a:hover { background: #111 }
.site-controls { margin-top: 8px; display: flex; align-items: center; gap: 8px }
main { padding: 16px }
.controls { display: flex; gap: 10px; margin: 12px 0 }
table { width: 100%; border-collapse: collapse; margin-top: 12px }
th, td { padding: 10px; border-bottom: 1px solid #222; text-align: left }
h2 { margin: 0; font-size: 20px }
.form-row { display: flex; gap: 10px; margin: 10px 0 }
.input { padding: 8px; border: 1px solid #222; border-radius: 6px; background: #0e0e0e; color: inherit }
.button { padding: 8px 12px; border: 1px solid #222; border-radius: 6px; background: #111; color: inherit }
.button:hover { background: #161616 }
.badge { display: inline-block; padding: 2px 8px; font-size: 12px; border: 1px solid #222; border-radius: 999px }
@keyframes flashUp { 0% { background: rgba(22,163,74,0.25) } 100% { background: transparent } }
@keyframes flashDown { 0% { background: rgba(220,38,38,0.25) } 100% { background: transparent } }
.cell-up { animation: flashUp 1200ms ease-out }
.cell-down { animation: flashDown 1200ms ease-out }
.dir-up { color: #16a34a }
.dir-down { color: #dc2626 }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 12px }
.card { border: 1px solid #222; border-radius: 8px; padding: 12px; background: #0d0d0d }
.card h3 { margin: 0 0 6px 0; font-size: 16px }
.preset-group { display: flex; gap: 8px; flex-wrap: wrap }
.checkgroup { display: flex; flex-wrap: wrap; gap: 8px }
.checkgroup label { display: flex; align-items: center; gap: 6px; border: 1px solid #222; padding: 6px 8px; border-radius: 6px }