:root{
  --bg:#0b0e14; --panel:#101524; --card:#0f1422; --text:#eaf0ff; --muted:#9aa3b2; --line:#1b2441;
  --accent:#58c1ff; --accent-2:#9d7bff; --good:#21d3a4; --bad:#ff6b88;
  --radius:14px; --shadow:0 8px 28px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:var(--bg); color:var(--text);
  font:16px/1.35 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
.wrap{max-width:1200px; margin:20px auto; padding:0 16px; position:relative}
.brand{
  font-weight:800; letter-spacing:.2px; font-size:clamp(18px,3vw,28px); text-align:center; margin-bottom:14px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2)); -webkit-background-clip:text; background-clip:text; color:transparent;
}
.grid{display:grid; gap:18px; grid-template-columns:1fr}
@media (min-width:900px){ .grid{grid-template-columns:1.1fr .9fr} }
.card{background:var(--card); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow); padding:18px}
h2{margin:0 0 10px; font-size:clamp(18px,2vw,22px)}
.help{color:var(--muted); font-size:.86rem}

label{display:block; margin:12px 0 6px; font-weight:700}
input[type="text"], input[type="number"]{
  width:100%; padding:12px 14px; border-radius:12px; border:1px solid var(--line); background:transparent; color:var(--text);
  outline:none; transition:border .2s ease, box-shadow .2s ease, transform .06s ease;
}
input:focus{border-color:var(--accent); box-shadow:0 0 0 3px rgba(88,193,255,.22)}
.row{display:grid; gap:10px; grid-template-columns:1fr}
@media (min-width:680px){ .row{grid-template-columns:repeat(3,1fr)} }
.row.two{grid-template-columns:1fr 1fr}

.btnbar{display:flex; gap:10px; flex-wrap:wrap; margin-top:12px}
button{
  padding:12px 14px; border-radius:12px; border:1px solid var(--line); background:transparent; color:var(--text);
  font-weight:750; cursor:pointer; transition:transform .06s ease, box-shadow .2s ease, border-color .2s ease;
}
button:hover{border-color:var(--accent)}
button:active{transform:translateY(1px)}
.primary{background:linear-gradient(180deg, rgba(88,193,255,.18), rgba(88,193,255,.10)); border-color:#2b6ea0}
.ghost{background:transparent}
.warn{background:linear-gradient(180deg, rgba(255,107,136,.14), rgba(255,107,136,.06)); border-color:#6a2e3a}

.results{margin-top:14px; padding:14px; border:1px solid var(--line); border-radius:12px; background:#0d1221}
.kpi{display:grid; gap:10px; grid-template-columns:1fr; margin-top:6px}
@media (min-width:520px){ .kpi{grid-template-columns:repeat(3,1fr)} }
.pill{
  padding:10px 12px; border:1px dashed var(--line); border-radius:12px; display:flex; align-items:center; justify-content:space-between; gap:8px;
  background:linear-gradient(180deg, rgba(255,255,255,.05), transparent);
}
.amount{font-weight:800}
.final{margin-top:12px; padding:12px; border-radius:12px; border:1px solid var(--line)}
.final.good{background:linear-gradient(180deg, rgba(33,211,164,.12), rgba(33,211,164,.04)); border-color:rgba(33,211,164,.4)}
.final.bad{ background:linear-gradient(180deg, rgba(255,107,136,.12), rgba(255,107,136,.04)); border-color:rgba(255,107,136,.4)}

table{width:100%; border-collapse:collapse; margin-top:10px; border:1px solid var(--line); border-radius:12px; overflow:hidden}
thead th{position:sticky; top:0; z-index:1; background:#0e1529; border-bottom:1px solid var(--line); text-align:right; padding:10px; font-size:.86rem}
th:first-child, td:first-child{text-align:left}
tbody td{padding:10px; border-bottom:1px solid var(--line)}
tbody tr:nth-child(odd){background:#0c1223}
tbody tr:last-child td{border-bottom:none}

/* Confetti canvas */
#fx{position:fixed; inset:0; pointer-events:none; z-index:9999; opacity:0; transition:opacity .2s ease}
#fx.show{opacity:1}

/* Toast */
.toast{position:fixed; left:50%; bottom:18px; transform:translateX(-50%) translateY(20px);
  background:#0f1528; border:1px solid var(--line); padding:10px 14px; border-radius:999px; opacity:0; pointer-events:none;
  transition:opacity .25s ease, transform .25s ease}
.toast.show{opacity:1; transform:translateX(-50%) translateY(0)}