:root{
  --bg:#0b0c10;
  --panel:#11131a;
  --paper:#0f1117;
  --text:#e8eaf0;
  --muted:#a9afc1;
  --line:rgba(255,255,255,.10);
  --accent:#7c5cff;
  --accent2:#2ee59d;
  --shadow:0 20px 60px rgba(0,0,0,.35);
  --radius:18px;
}
@media (prefers-color-scheme: light){
  :root{
    --bg:#f6f7fb;
    --panel:#ffffff;
    --paper:#ffffff;
    --text:#101318;
    --muted:#5b6272;
    --line:rgba(16,19,24,.12);
    --accent:#5b5cff;
    --accent2:#00b27a;
    --shadow:0 18px 50px rgba(16,19,24,.10);
  }
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:radial-gradient(900px 600px at 15% 5%, rgba(124,92,255,.22), transparent 60%),
             radial-gradient(900px 600px at 85% 10%, rgba(46,229,157,.14), transparent 55%),
             var(--bg);
  color:var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height:1.55;
}
.wrap{max-width:1120px;margin:0 auto;padding:20px}
.topbar{position:sticky;top:0;z-index:20;backdrop-filter:saturate(140%) blur(10px);background:color-mix(in oklab, var(--bg) 78%, transparent);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg, var(--accent), var(--accent2));color:white;font-weight:900;box-shadow:0 10px 30px rgba(124,92,255,.25)}
.brand-title{font-weight:850;letter-spacing:.2px}
.brand-sub{color:var(--muted);font-size:.95rem}
.actions{display:flex;gap:10px;flex-wrap:wrap}

.grid{display:grid;grid-template-columns: 1.05fr .95fr;gap:18px;align-items:start}
@media (max-width:980px){.grid{grid-template-columns:1fr;gap:14px}}

.panel{background:color-mix(in oklab, var(--panel) 85%, transparent);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 18px 10px;flex-wrap:wrap}
.panel-head h1{margin:0;font-size:1.15rem}
.section{padding:14px 18px;border-top:1px solid var(--line)}
.section h2{margin:0 0 10px;font-size:1.02rem}

.form{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:560px){.form{grid-template-columns:1fr}}
label{display:flex;flex-direction:column;gap:6px;color:color-mix(in oklab, var(--text) 82%, var(--muted));font-size:.95rem}
input,select{width:100%;padding:10px 12px;border-radius:14px;border:1px solid var(--line);background:color-mix(in oklab, var(--paper) 88%, transparent);color:var(--text);outline:none}
input:focus,select:focus{border-color:color-mix(in oklab, var(--accent) 60%, var(--line));box-shadow:0 0 0 4px color-mix(in oklab, var(--accent) 18%, transparent)}

.hint{margin:10px 0 0;color:var(--muted);font-size:.93rem}

.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg-btn{border:1px solid var(--line);background:transparent;color:var(--muted);padding:9px 12px;border-radius:999px;cursor:pointer}
.seg-btn:hover{color:var(--text)}
.seg-btn.is-active{color:var(--text);border-color:color-mix(in oklab, var(--accent) 55%, var(--line));background:color-mix(in oklab, var(--accent) 14%, transparent)}

.btn{border:1px solid color-mix(in oklab, var(--accent) 60%, var(--line));background:linear-gradient(135deg, color-mix(in oklab, var(--accent) 90%, white 0%), color-mix(in oklab, var(--accent2) 70%, white 0%));color:white;padding:10px 12px;border-radius:14px;cursor:pointer;font-weight:750}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn:hover{filter:saturate(115%)}

.pill{padding:7px 10px;border-radius:999px;border:1px solid var(--line);color:var(--muted);font-size:.92rem}
.pill.ok{border-color:color-mix(in oklab, var(--accent2) 50%, var(--line));color:color-mix(in oklab, var(--accent2) 65%, var(--text))}
.pill.warn{border-color:color-mix(in oklab, #ffb020 55%, var(--line));color:color-mix(in oklab, #ffb020 70%, var(--text))}
.pill.bad{border-color:color-mix(in oklab, #ff4d6d 55%, var(--line));color:color-mix(in oklab, #ff4d6d 70%, var(--text))}

.cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:14px 18px}
@media (max-width:560px){.cards{grid-template-columns:1fr}}
.card{border:1px solid var(--line);border-radius:16px;padding:14px;background:color-mix(in oklab, var(--paper) 88%, transparent)}
.k{color:var(--muted);font-size:.94rem}
.v{font-size:1.55rem;font-weight:900;margin-top:6px;letter-spacing:-.3px}
.s{color:var(--muted);margin-top:6px;font-size:.92rem}

.chart-wrap{border:1px solid var(--line);border-radius:16px;background:color-mix(in oklab, var(--paper) 88%, transparent);overflow:hidden}
canvas{display:block;width:100%;height:240px}
.chart-legend{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:.92rem;margin-top:10px}
.dot{display:inline-block;width:10px;height:10px;border-radius:999px;margin-right:6px;border:1px solid var(--line)}
.dot.rev{background:color-mix(in oklab, var(--accent) 70%, transparent)}
.dot.prof{background:color-mix(in oklab, var(--accent2) 65%, transparent)}
.dot.cost{background:color-mix(in oklab, #ffb020 65%, transparent)}

.metrics{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media (max-width:560px){.metrics{grid-template-columns:1fr}}
.metric{border:1px solid var(--line);border-radius:16px;padding:12px;background:color-mix(in oklab, var(--paper) 88%, transparent)}
.metric .k{font-size:.92rem}
.metric .v{font-size:1.1rem;font-weight:850;margin-top:6px}

.tips{margin:0;padding-left:18px;color:var(--muted)}
.tips li{margin:6px 0}

.footer{padding:10px 20px 28px}
.muted{color:var(--muted)}

/* Mobile polish */
@media (max-width:560px){
  .wrap{padding:14px}
  .topbar .wrap{flex-direction:column;align-items:stretch}
  .actions{width:100%}
  .actions .btn{flex:1}
  .panel-head{padding:14px 14px 8px}
  .section{padding:12px 14px}
  .cards{padding:12px 14px}
  canvas{height:220px}
}