:root {
  --bg: #0b0f14;
  --bg-raise: #10161e;
  --panel: #121a24;
  --panel-2: #0e141c;
  --border: #1e2a38;
  --border-soft: #182230;
  --text: #d9e1ec;
  --muted: #8595a8;
  --dim: #5b6a7e;
  --accent: #6fa8e8;
  --accent-dim: #3d6ea8;
  --pass: #34d287;
  --pass-dim: rgba(52, 210, 135, 0.12);
  --fail: #f0555d;
  --fail-dim: rgba(240, 85, 93, 0.12);
  --warn: #e2b357;
  --warn-dim: rgba(226, 179, 87, 0.12);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.num, .mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---------- header / footer ---------- */

.site-header {
  border-bottom: 1px solid var(--border-soft);
  background: rgba(11, 15, 20, 0.92);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(6px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  letter-spacing: 0.02em;
}
.brand:hover { text-decoration: none; }
.brand .tick { color: var(--pass); }

.nav { display: flex; gap: 18px; align-items: center; }
.nav a { color: var(--muted); font-size: 14px; }
.nav a:hover { color: var(--text); text-decoration: none; }
.nav a.btn { color: #0b0f14; }
.nav a.btn:hover { color: #0b0f14; }

.site-footer {
  border-top: 1px solid var(--border-soft);
  margin-top: 72px;
  padding: 28px 0 40px;
  color: var(--dim);
  font-size: 13px;
}
.site-footer p { margin: 6px 0; }

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  border: 1px solid var(--accent-dim);
  background: var(--accent);
  color: #0b0f14;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  transition: filter 0.12s ease, background 0.12s ease;
}
.btn:hover { filter: brightness(1.12); text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--accent-dim); background: rgba(111, 168, 232, 0.07); }

.btn-sm { padding: 6px 12px; font-size: 13px; }

.btn-big { padding: 13px 28px; font-size: 15px; }

/* ---------- panels / cards ---------- */

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
}

.panel + .panel { margin-top: 20px; }

.panel-title {
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin: 0 0 16px;
}
.panel-title .prompt { color: var(--pass); margin-right: 6px; }

.section { margin-top: 28px; }

.hidden { display: none !important; }

/* ---------- badges ---------- */

.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
  color: var(--muted);
  vertical-align: middle;
}

.badge-approx {
  color: var(--warn);
  border-color: rgba(226, 179, 87, 0.4);
  background: var(--warn-dim);
  cursor: help;
}

.badge-pass { color: var(--pass); border-color: rgba(52, 210, 135, 0.4); background: var(--pass-dim); }
.badge-fail { color: var(--fail); border-color: rgba(240, 85, 93, 0.4); background: var(--fail-dim); }
.badge-custom {
  color: var(--accent);
  border-color: rgba(111, 168, 232, 0.45);
  background: rgba(111, 168, 232, 0.1);
}

/* ---------- landing ---------- */

.hero { padding: 84px 0 56px; text-align: left; }

.hero .eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--pass);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.12;
  margin: 0 0 18px;
  max-width: 760px;
  letter-spacing: -0.015em;
}

.hero .sub {
  color: var(--muted);
  font-size: 18px;
  max-width: 640px;
  margin: 0 0 30px;
}

.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero .cta-note { font-size: 13px; color: var(--dim); margin-top: 12px; font-family: var(--mono); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.step .step-no {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 8px;
}
.step h3 { margin: 0 0 8px; font-size: 17px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

.honest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.honest-col h3 { font-size: 15px; margin: 0 0 10px; font-family: var(--mono); }
.honest-col ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
.honest-col li { margin-bottom: 8px; }
.honest-col li strong { color: var(--text); font-weight: 600; }

.honest-note {
  margin-top: 18px;
  padding: 12px 16px;
  border-left: 3px solid var(--warn);
  background: var(--warn-dim);
  color: var(--text);
  font-size: 14px;
  border-radius: 0 6px 6px 0;
}

/* ---------- email form ---------- */

.email-form { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.email-form input[type="email"] {
  flex: 1 1 260px;
  max-width: 380px;
}
.form-msg { font-size: 13px; margin-top: 10px; font-family: var(--mono); min-height: 18px; }
.form-msg.ok { color: var(--pass); }
.form-msg.err { color: var(--fail); }

/* ---------- FAQ ---------- */

.faq details {
  border-bottom: 1px solid var(--border-soft);
  padding: 4px 0;
}
.faq summary {
  cursor: pointer;
  padding: 12px 0;
  font-weight: 600;
  font-size: 15px;
  list-style: none;
  position: relative;
  padding-left: 22px;
}
.faq summary::before {
  content: ">";
  font-family: var(--mono);
  color: var(--accent);
  position: absolute;
  left: 0;
  transition: transform 0.15s ease;
}
.faq details[open] summary::before { transform: rotate(90deg); }
.faq summary::-webkit-details-marker { display: none; }
.faq details p { color: var(--muted); font-size: 14px; margin: 0 0 14px; padding-left: 22px; }

/* ---------- forms ---------- */

input[type="text"], input[type="email"], input[type="number"], select {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  padding: 9px 12px;
  border-radius: 6px;
  width: 100%;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 2px rgba(111, 168, 232, 0.15);
}

.field { display: block; font-size: 13px; color: var(--muted); }
.field .lbl { display: block; margin-bottom: 6px; font-family: var(--mono); }
.field .hint { display: block; margin-top: 5px; font-size: 12px; color: var(--dim); }

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

input.invalid, select.invalid {
  border-color: rgba(240, 85, 93, 0.65);
  box-shadow: 0 0 0 2px rgba(240, 85, 93, 0.12);
}

/* ---------- challenge rules editor ---------- */

.rules-block {
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 14px 16px 16px;
}

.rules-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.rules-title {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.rules-block input[type="number"], .rules-block select {
  font-variant-numeric: tabular-nums;
}

/* ---------- dropzone ---------- */

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 44px 24px;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-dim);
  background: rgba(111, 168, 232, 0.05);
}
.dropzone .dz-icon { font-family: var(--mono); font-size: 24px; color: var(--dim); margin-bottom: 10px; }
.dropzone .dz-main { font-size: 15px; color: var(--text); margin-bottom: 6px; }
.dropzone .dz-sub { font-size: 13px; color: var(--dim); font-family: var(--mono); }
.dropzone input[type="file"] { display: none; }

.dropzone.dz-compact { padding: 20px 18px; }

/* ---------- RR rework (v0.5) ---------- */

.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }

.chip {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  padding: 7px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel-2);
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.12s ease, background 0.12s ease, color 0.12s ease;
}
.chip:hover { border-color: var(--accent-dim); color: var(--text); }
.chip.on {
  background: rgba(111, 168, 232, 0.14);
  border-color: var(--accent-dim);
  color: var(--accent);
  font-weight: 600;
}

.rr-meta {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  color: var(--muted);
  margin: 14px 0 0;
}

table.data tr.rr-active td { background: var(--pass-dim); color: var(--text); }
table.data tr.rr-active td:first-child::after {
  content: " ●";
  color: var(--pass);
  font-size: 11px;
}

/* ---------- stats grid ---------- */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.stat {
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 12px 14px;
}
.stat .k {
  font-size: 11px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--mono);
  margin-bottom: 4px;
}
.stat .v { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 18px; }
.stat .v.pos { color: var(--pass); }
.stat .v.neg { color: var(--fail); }

/* ---------- results ---------- */

.pass-hero {
  display: flex;
  gap: 28px;
  align-items: center;
  flex-wrap: wrap;
}

.pass-big {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(56px, 9vw, 92px);
  font-weight: 700;
  line-height: 1;
}

.pass-meta { flex: 1 1 260px; min-width: 240px; }
.pass-label { font-size: 15px; color: var(--muted); margin-bottom: 4px; }
.pass-firm { font-size: 14px; color: var(--dim); font-family: var(--mono); margin-bottom: 12px; }

.pass-scale {
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--fail) 0%, var(--warn) 45%, var(--pass) 75%);
  position: relative;
  margin-top: 8px;
}
.pass-scale .marker {
  position: absolute;
  top: -4px;
  width: 3px;
  height: 14px;
  background: var(--text);
  border-radius: 2px;
  transform: translateX(-50%);
}

.rules-line {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  color: var(--muted);
  margin: 14px 0 0;
}
.rules-line .badge { margin-left: 8px; }

.fail-breakdown { margin-top: 20px; }
.fail-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; font-size: 13px; }
.fail-row .fk { flex: 0 0 180px; color: var(--muted); font-family: var(--mono); }
.fail-row .fbar { flex: 1; height: 8px; background: var(--panel-2); border-radius: 4px; overflow: hidden; }
.fail-row .fbar > i { display: block; height: 100%; background: var(--fail); border-radius: 4px; }
.fail-row .fbar > i.neutral { background: var(--dim); }
.fail-row .fbar > i.ok { background: var(--pass); }
.fail-row .fv { flex: 0 0 64px; text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }

.chart-box { position: relative; width: 100%; height: 340px; }
.chart-box.short { height: 260px; }

.charts-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.methodology-note { font-size: 12px; color: var(--dim); margin-top: 12px; }

/* ---------- EV card ---------- */

.ev-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}
.ev-grid .stat .v.big { font-size: 22px; }

/* ---------- tables ---------- */

.table-wrap { overflow-x: auto; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.data th {
  text-align: right;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--dim);
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
table.data th:first-child, table.data td:first-child { text-align: left; }
table.data td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}
table.data td:first-child { color: var(--muted); }
table.data tr.best td {
  background: var(--pass-dim);
  color: var(--text);
}
table.data tr.best td:first-child::after {
  content: " ★ best";
  color: var(--pass);
  font-size: 11px;
}
table.data td .pos { color: var(--pass); }
table.data td .neg { color: var(--fail); }

/* ---------- risk × RR heatmap ---------- */

.riskgrid-meta {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  color: var(--muted);
  margin: 14px 0 0;
}

table.riskgrid {
  border-collapse: separate;
  border-spacing: 2px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

table.riskgrid thead th {
  font-weight: 600;
  padding: 4px 10px 8px;
  text-align: center;
  vertical-align: bottom;
  white-space: nowrap;
}
table.riskgrid .rg-rr { font-size: 12px; color: var(--text); }
table.riskgrid .rg-wr {
  font-size: 10.5px;
  color: var(--dim);
  margin-top: 2px;
  letter-spacing: 0.04em;
}

table.riskgrid tbody th {
  font-weight: 500;
  text-align: right;
  padding: 8px 12px 8px 0;
  white-space: nowrap;
}
table.riskgrid .rg-pct { font-size: 13px; color: var(--text); }
table.riskgrid .rg-usd { font-size: 10.5px; color: var(--dim); margin-top: 1px; }

/* sticky first column inside the horizontal scroll container */
table.riskgrid thead th:first-child,
table.riskgrid tbody th {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--panel);
}
table.riskgrid th.rg-corner { text-align: right; }
table.riskgrid th.rg-corner .rg-rr { color: var(--dim); }

table.riskgrid td {
  min-width: 76px;
  padding: 8px 10px;
  text-align: center;
  border-radius: 4px;
  white-space: nowrap;
  cursor: default;
}
table.riskgrid td:hover { outline: 1px solid rgba(217, 225, 236, 0.55); outline-offset: -1px; }
table.riskgrid .rg-pass { font-size: 15px; font-weight: 600; line-height: 1.2; }
table.riskgrid .rg-ev { font-size: 10.5px; margin-top: 2px; opacity: 0.85; }

/* pass% ramp: dark green → bright green (text flips dark once fill gets bright) */
table.riskgrid td.rg-b0 { background: rgba(52, 210, 135, 0.06); color: var(--dim); }
table.riskgrid td.rg-b1 { background: rgba(52, 210, 135, 0.15); color: var(--muted); }
table.riskgrid td.rg-b2 { background: rgba(52, 210, 135, 0.28); color: var(--text); }
table.riskgrid td.rg-b3 { background: rgba(52, 210, 135, 0.46); color: #eafff3; }
table.riskgrid td.rg-b4 { background: rgba(52, 210, 135, 0.68); color: #05281a; }
table.riskgrid td.rg-b5 { background: rgba(52, 210, 135, 0.9); color: #03190f; }
/* negative EV wins over pass% — costs eat the edge even when it passes often */
table.riskgrid td.rg-neg { background: rgba(232, 96, 60, 0.78); color: #fff0e8; }
table.riskgrid td.rg-neg .rg-ev { opacity: 1; font-weight: 600; }

.stat[title] { cursor: help; }

/* ---------- misc ---------- */

.error-box {
  border: 1px solid rgba(240, 85, 93, 0.45);
  background: var(--fail-dim);
  color: var(--text);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  margin-top: 16px;
}

.spinner {
  display: inline-block;
  font-family: var(--mono);
  color: var(--accent);
  font-size: 13px;
}
.spinner::after {
  content: "▮";
  animation: blink 0.8s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.actions-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 20px; }

.share-url {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  word-break: break-all;
}

.result-params { font-size: 13px; color: var(--muted); font-family: var(--mono); }
.result-params span { color: var(--text); }

@media (max-width: 640px) {
  .hero { padding: 48px 0 36px; }
  .fail-row .fk { flex-basis: 120px; font-size: 12px; }
  .chart-box { height: 260px; }
}