/* NEETprep — Paid Acquisition terminal. "Every rupee, accounted for."
   Ink ground + marigold breakeven rail; numbers set in mono like a ledger. */
:root{
  --ink:#0E1726; --ink-2:#0b1320; --panel:#142033; --panel-2:#18263c;
  --rule:#233247; --rule-soft:#1b2840;
  --paper:#E8EDF4; --muted:#7C8BA3; --muted-2:#56657e;
  --marigold:#F2A93B; --marigold-dim:#9a6f2b;
  --teal:#46C7B8; --clay:#D9694B; --violet:#9B8CFF;
  --good:#46C7B8; --warn:#F2A93B; --bad:#D9694B;
  --shadow:0 1px 0 rgba(255,255,255,.03), 0 16px 40px -24px rgba(0,0,0,.8);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--ink); color:var(--paper);
  font-family:Inter,-apple-system,Segoe UI,Roboto,sans-serif; font-size:14px; line-height:1.5;
  background-image:radial-gradient(1200px 600px at 78% -10%, rgba(242,169,59,.06), transparent 60%);
}
.mono{font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
b{font-weight:600}
a{color:var(--marigold);text-decoration:none}
a:hover{text-decoration:underline}

/* ── header ─────────────────────────────────────────────── */
header{
  display:flex;justify-content:space-between;align-items:flex-end;gap:28px;
  padding:26px 32px 22px;border-bottom:1px solid var(--rule);flex-wrap:wrap;
}
.brand{display:flex;flex-direction:column;gap:3px}
.eyebrow{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--marigold);font-weight:600}
h1{margin:0;font-family:"Space Grotesk",sans-serif;font-size:27px;font-weight:600;letter-spacing:-.01em}
.thesis{color:var(--muted);font-size:13px}
.thesis em{color:var(--paper);font-style:normal;font-weight:500}
.built{font-size:11px;color:var(--muted-2);text-align:right;line-height:1.7}
.built b{color:var(--muted)}

/* ── controls ───────────────────────────────────────────── */
.controls{display:flex;gap:22px;align-items:flex-end;padding:18px 32px;flex-wrap:wrap;border-bottom:1px solid var(--rule);background:var(--ink-2)}
.field{display:flex;flex-direction:column;gap:7px}
.field>span{font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}
select,input[type=date]{
  background:var(--panel);color:var(--paper);border:1px solid var(--rule);border-radius:9px;
  padding:8px 12px;font-size:13.5px;min-width:148px;color-scheme:dark;font-family:inherit;
}
select:focus,input:focus,.seg button:focus-visible{outline:2px solid var(--marigold);outline-offset:1px}
.seg{display:inline-flex;background:var(--panel);border:1px solid var(--rule);border-radius:9px;padding:3px;gap:2px}
.seg button{
  background:transparent;color:var(--muted);border:0;border-radius:7px;padding:7px 13px;cursor:pointer;
  font-size:12.5px;font-weight:500;font-family:"IBM Plex Mono",monospace;letter-spacing:.01em;
}
.seg button:hover{color:var(--paper)}
.seg button.on{background:var(--marigold);color:#1c1303;font-weight:600}

/* ── hero rail ──────────────────────────────────────────── */
.hero{padding:30px 32px 26px;border-bottom:1px solid var(--rule)}
.flow{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;font-family:"Space Grotesk",sans-serif}
.flow .big{font-size:30px;font-weight:600;letter-spacing:-.02em}
.flow .arrow{color:var(--muted-2);font-size:20px}
.flow .lab{font-size:12px;color:var(--muted);font-family:Inter,sans-serif;letter-spacing:.02em}
.roas-wrap{margin-left:auto;text-align:right}
.roas-num{font-family:"Space Grotesk",sans-serif;font-size:46px;font-weight:700;line-height:1;letter-spacing:-.03em}
.roas-num small{font-size:18px;font-weight:500;color:var(--muted)}
.roas-lab{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:2px}

.rail{margin-top:34px;position:relative;height:34px;border-radius:8px;background:var(--panel);border:1px solid var(--rule)}
.rail .fill{position:absolute;top:0;bottom:0;left:0;border-radius:7px 0 0 7px;transition:width .5s cubic-bezier(.22,1,.36,1)}
.rail .fill.up{background:linear-gradient(90deg,var(--marigold-dim),var(--marigold))}
.rail .fill.down{background:linear-gradient(90deg,#7d3a2b,var(--clay))}
.rail .tick{position:absolute;top:-6px;bottom:-6px;width:2px;background:var(--paper);opacity:.85}
.rail .ticklab{position:absolute;top:-20px;transform:translateX(-50%);font-size:10.5px;color:var(--muted);font-family:"IBM Plex Mono",monospace}

/* ── kpi chips ──────────────────────────────────────────── */
.chips{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;margin-top:24px;background:var(--rule);border:1px solid var(--rule);border-radius:12px;overflow:hidden}
.chip{background:var(--ink);padding:14px 16px}
.chip .v{font-family:"IBM Plex Mono",monospace;font-size:21px;font-weight:500;font-variant-numeric:tabular-nums}
.chip .k{font-size:11px;color:var(--muted);margin-top:3px;letter-spacing:.02em}
.chip.fnl .v{color:var(--teal)}
.chip .delta{font-size:11px;color:var(--muted-2)}

/* ── panels ─────────────────────────────────────────────── */
.panel{padding:26px 32px}
.panel-h{display:flex;align-items:baseline;gap:14px;margin-bottom:14px;flex-wrap:wrap}
.panel-h h2{font-family:"Space Grotesk",sans-serif;font-size:16px;font-weight:600;margin:0}
.panel-h .hint{color:var(--muted);font-size:12px}
.spacer{margin-left:auto}

.tablewrap{border:1px solid var(--rule);border-radius:12px;overflow:auto;box-shadow:var(--shadow)}
table{border-collapse:collapse;width:100%}
th,td{padding:9px 11px;text-align:right;border-bottom:1px solid var(--rule-soft);white-space:nowrap}
td.mono,th.num{font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums}
th{
  position:sticky;top:0;background:var(--panel);color:var(--muted);font-weight:600;font-size:11px;
  letter-spacing:.05em;text-transform:uppercase;cursor:pointer;user-select:none;z-index:2;
}
th:hover{color:var(--paper)}
th.sorted{color:var(--marigold)}
th .car{font-size:9px;opacity:.8}
th:first-child,td:first-child{text-align:left;position:sticky;left:0;background:var(--panel);z-index:1}
tbody td:first-child{background:var(--ink)}
tbody tr:hover td,tbody tr:hover td:first-child{background:var(--panel-2)}
tbody tr:last-child td{border-bottom:0}
.cname{display:flex;align-items:center;gap:9px;max-width:248px}
.cname .dot{width:8px;height:8px;border-radius:2px;flex:0 0 8px}
.cname .nm{overflow:hidden;text-overflow:ellipsis}
.ch-tag{font-size:10px;color:var(--muted-2);text-transform:uppercase;letter-spacing:.04em}

/* inline roas bar in table */
.rbar{display:inline-grid;grid-template-columns:42px 60px;align-items:center;gap:8px;justify-content:end}
.rbar .rv{font-family:"IBM Plex Mono",monospace;font-weight:600}
.rbar .rv.up{color:var(--marigold)} .rbar .rv.down{color:var(--clay)} .rbar .rv.zero{color:var(--muted-2)}
.rtrack{position:relative;height:14px;background:var(--panel);border-radius:4px;overflow:hidden;border:1px solid var(--rule-soft)}
.rtrack .rf{position:absolute;top:0;bottom:0;left:0}
.rtrack .rf.up{background:var(--marigold)} .rtrack .rf.down{background:var(--clay)}
.rtrack .rt{position:absolute;top:0;bottom:0;width:1px;background:var(--paper);opacity:.5}

/* cohort maturation heat */
.heatcell{display:inline-block;min-width:52px;padding:4px 8px;border-radius:5px;font-family:"IBM Plex Mono",monospace;font-size:12.5px}
.legend{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:11px}
.legend .sw{width:13px;height:13px;border-radius:3px;display:inline-block}

footer{color:var(--muted);font-size:11.5px;padding:22px 32px 40px;border-top:1px solid var(--rule);line-height:1.7}
footer b{color:var(--muted)}
.err{padding:32px;color:var(--clay);font-family:"IBM Plex Mono",monospace;white-space:pre-wrap}

@media (max-width:720px){
  header,.controls,.hero,.panel,footer{padding-left:18px;padding-right:18px}
  .roas-wrap{margin-left:0;text-align:left}
  .flow .arrow{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}