:root{--bg:#0F1B2D;--card:#17263C;--text:#F4F6F8;--muted:#A9B8C9;--neutral:#8FA3B8;--gain:#2FBF71;--accent:#F2B84B;--line:#2B3D57}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
main{max-width:720px;margin:0 auto;padding:32px 16px 48px}
h1{font-size:clamp(1.7rem,6vw,2.4rem);line-height:1.15;margin:0 0 12px}
h2{font-size:1.2rem;margin:36px 0 8px}
p{margin:0 0 12px}
.lead{color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin:24px 0}
label{display:block;font-weight:600;margin-bottom:8px}
.field{display:flex;align-items:center;gap:10px}
input{width:100%;max-width:220px;background:var(--bg);color:var(--text);border:1px solid var(--neutral);border-radius:8px;padding:12px;font-size:1.3rem}
input:focus{outline:2px solid var(--accent);outline-offset:2px}
.err{color:var(--accent);min-height:1.5em;margin:8px 0 0;font-size:.95rem}
.paid{margin:18px 0 16px;color:var(--muted)}
.paid b{color:var(--text)}
.row{margin:0 0 16px}
.row-top{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.val{font-weight:700;font-size:1.25rem}
.track{height:14px;background:var(--bg);border-radius:7px;overflow:hidden;margin-top:6px;position:relative}
.bar{display:block;height:100%;border-radius:7px;background:var(--neutral);transition:width .25s}
.row.best .bar{background:var(--gain)}
.row.best .val{color:var(--gain)}
.row.avg .bar{background:var(--text)}
.val.neg{color:#E5484D}
.period{display:block;color:var(--muted);font-size:.9rem}
.range-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.range-top output{font-size:1.3rem;font-weight:700;color:var(--accent);white-space:nowrap}
input[type=range]{display:block;max-width:none;width:100%;height:44px;margin:0;padding:0;border:0;background:none;accent-color:var(--accent);cursor:pointer}
.ticks{display:flex;justify-content:space-between;color:var(--muted);font-size:.9rem;margin:-4px 0 20px}
.note{border-left:3px solid var(--accent);padding:2px 0 2px 12px;margin:0}
ul{padding-left:20px;margin:0 0 12px}
li{margin-bottom:6px}
a{color:var(--accent)}
footer{border-top:1px solid var(--line);margin-top:36px;padding-top:16px;color:var(--muted);font-size:.95rem}
@media (prefers-reduced-motion:reduce){.bar{transition:none}}

.site-head{display:flex;align-items:center;gap:10px;padding:14px 16px;max-width:720px;margin:0 auto}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;font-size:1.15rem}
.brand svg{width:36px;height:36px;flex:none}
.top-nav{margin-left:auto;display:flex;gap:14px;font-size:.95rem}
main{padding-top:12px}
table{width:100%;border-collapse:collapse;margin:0 0 16px;font-size:.95rem}
th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.stand{color:var(--muted);font-size:.95rem}
.button{display:inline-block;background:var(--accent);color:var(--bg);font-weight:700;text-decoration:none;padding:12px 18px;border-radius:8px;margin:8px 0 16px}
footer a{margin-right:12px}
.site-foot{max-width:720px;margin:0 auto;padding:16px 16px 48px}
main{padding-bottom:0}