:root {
  --bg: #050614; --bg-deep: #08081a; --bg-card: #131630; --bg-hi: #181c3a;
  --cyan: #6ee7ff; --cyan-deep: #3ec8e8; --mint: #88ffd1; --violet: #a78dff; --magenta: #ff6ec7;
  --crit: #ff5577; --warn: #ff9a4a; --ink: #d6d8f5; --ink-dim: #8a8db0; --ink-faint: #5a5e88;
  --divider: rgba(255,255,255,0.07);
  --mono: 'JetBrains Mono', ui-monospace, Consolas, monospace;
  --ui: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(120% 90% at 40% 0%, #0f1338 0%, #080a20 45%, #04040d 100%); color: var(--ink); font-family: var(--ui); min-height: 100vh; }
a { color: var(--cyan); text-decoration: none; }
b { color: var(--ink); }

.demo-top { display: flex; align-items: center; justify-content: space-between; padding: 16px 28px; border-bottom: 1px solid var(--divider); position: sticky; top: 0; background: rgba(5,6,20,0.8); backdrop-filter: blur(8px); z-index: 20; }
.brand { font-family: var(--mono); font-size: 16px; letter-spacing: 2px; color: var(--ink); }
.brand-mark { color: var(--cyan); }
.brand-tag { font-size: 10px; color: var(--ink-faint); letter-spacing: 2px; margin-left: 10px; }
.demo-dl { font-family: var(--mono); font-size: 12px; background: var(--cyan); color: #04040d; padding: 8px 16px; border-radius: 8px; font-weight: 700; }
.demo-dl:hover { background: #8af0ff; }

.demo-hero { text-align: center; padding: 60px 24px 30px; max-width: 820px; margin: 0 auto; }
.demo-hero h1 { font-size: 44px; font-weight: 800; margin: 0 0 12px; letter-spacing: -0.5px; }
.grad { background: linear-gradient(100deg, var(--cyan), var(--mint) 60%, var(--violet)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lead { font-size: 17px; color: var(--ink-dim); line-height: 1.6; margin: 0 auto 22px; max-width: 620px; }
.spine { display: inline-flex; align-items: center; gap: 14px; font-family: var(--mono); font-size: 13px; letter-spacing: 2px; color: var(--mint); background: var(--bg-card); border: 1px solid var(--divider); border-radius: 999px; padding: 10px 22px; }
.spine i { color: var(--ink-faint); font-style: normal; }
.hero-sub { font-size: 13px; color: var(--ink-faint); margin-top: 22px; }

.demo-picker { max-width: 1040px; margin: 10px auto 0; padding: 0 24px; }
.picker-title { font-family: var(--mono); font-size: 12px; letter-spacing: 2px; color: var(--ink-faint); text-transform: uppercase; margin-bottom: 14px; text-align: center; }
.picker-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.picker-card { text-align: left; background: var(--bg-card); border: 1px solid var(--divider); border-radius: 14px; padding: 20px; cursor: pointer; color: var(--ink); transition: border-color .15s, transform .15s; }
.picker-card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.picker-card.is-active { border-color: var(--cyan); box-shadow: 0 0 0 1px var(--cyan) inset; }
.pc-icon { font-size: 26px; margin-bottom: 8px; }
.pc-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.pc-blurb { font-size: 12.5px; color: var(--ink-dim); line-height: 1.5; }
.pc-go { font-family: var(--mono); font-size: 11px; color: var(--cyan); margin-top: 12px; }

.demo-result { max-width: 1100px; margin: 32px auto; padding: 0 24px; }
.demo-loading { text-align: center; color: var(--ink-dim); font-family: var(--mono); font-size: 13px; padding: 40px; }
.muted { color: var(--ink-faint); font-size: 13px; }

.rz { background: var(--bg-card); border: 1px solid var(--divider); border-radius: 16px; padding: 24px; margin-bottom: 20px; }
.rz-step { font-family: var(--mono); font-size: 11px; letter-spacing: 2px; color: var(--cyan); margin-bottom: 12px; }
.rz-2 .rz-step { color: var(--violet); }
.rz-h { font-size: 22px; font-weight: 800; margin-bottom: 10px; }
.rz-narr { font-size: 14px; color: var(--ink-dim); line-height: 1.6; margin-bottom: 18px; padding-left: 12px; border-left: 2px solid var(--divider); }

.findings { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; }
.fc { background: var(--bg-deep); border: 1px solid var(--divider); border-left: 3px solid var(--ink-faint); border-radius: 10px; padding: 14px; }
.fc--crit { border-left-color: var(--crit); }
.fc--warn { border-left-color: var(--warn); }
.fc--info { border-left-color: var(--cyan); }
.fc-head { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.sev { font-family: var(--mono); font-size: 9.5px; letter-spacing: 1px; text-transform: uppercase; padding: 2px 7px; border-radius: 999px; }
.sev--crit { background: rgba(255,85,119,0.15); color: var(--crit); }
.sev--warn { background: rgba(255,154,74,0.15); color: var(--warn); }
.sev--info { background: rgba(110,231,255,0.13); color: var(--cyan); }
.conf { font-family: var(--mono); font-size: 10px; color: var(--ink-faint); }
.fc-title { font-size: 14px; font-weight: 700; line-height: 1.4; margin-bottom: 6px; }
.fc-desc { font-size: 12px; color: var(--ink-dim); line-height: 1.5; margin-bottom: 8px; }
.fc-ev { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }
.ev { font-family: var(--mono); font-size: 10.5px; color: var(--ink-dim); background: var(--bg-hi); border-radius: 5px; padding: 2px 7px; }
.ev b { color: var(--cyan); margin-right: 5px; }
.fc-foot { display: flex; justify-content: space-between; align-items: center; }
.fc-method { font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint); }
.cited { font-family: var(--mono); font-size: 10.5px; color: var(--mint); }

.corr-head, .sc-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.corr-title { font-size: 13px; color: var(--ink-dim); } .corr-title b { color: var(--cyan); }
.toggle { display: flex; gap: 2px; background: var(--bg-deep); border-radius: 6px; padding: 2px; }
.mini { border: none; background: transparent; color: var(--ink-dim); font-family: var(--mono); font-size: 11px; padding: 4px 11px; border-radius: 4px; cursor: pointer; }
.mini.on { background: var(--bg-hi); color: var(--cyan); }
.corr-body { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 20px; align-items: start; }
@media (max-width: 920px) { .corr-body { grid-template-columns: 1fr; } .demo-hero h1 { font-size: 34px; } }
#heat { overflow-x: auto; }
.heat { display: grid; gap: 2px; }
.hcol, .hrow { font-family: var(--mono); font-size: 9.5px; color: var(--ink-dim); display: flex; align-items: center; white-space: nowrap; overflow: hidden; }
.hcol { justify-content: center; writing-mode: vertical-rl; transform: rotate(180deg); max-height: 72px; }
.hrow { justify-content: flex-end; padding-right: 6px; }
.cell { aspect-ratio: 1/1; min-height: 26px; border-radius: 3px; cursor: pointer; display: flex; align-items: center; justify-content: center; font-family: var(--mono); font-size: 9.5px; color: #eef; }
.cell:hover { outline: 2px solid var(--cyan); }
.cell.diag { opacity: 0.5; cursor: default; }
.heat-hint { font-family: var(--mono); font-size: 10px; color: var(--ink-faint); margin-top: 10px; }

#scatter { background: var(--bg-deep); border: 1px solid var(--divider); border-radius: 12px; padding: 16px; }
.sc-title { font-family: var(--mono); font-size: 13px; } .sc-title .x { color: var(--ink-faint); }
.chart { width: 100%; height: auto; display: block; background: var(--bg); border-radius: 8px; }
.sc-stats { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 10px; font-family: var(--mono); font-size: 11px; color: var(--ink-dim); }
.sc-stats b { color: var(--ink); }
.sc-note { margin-top: 8px; font-size: 11px; color: var(--warn); }
.sc-actions { margin-top: 14px; }
.btn-primary { width: 100%; border: none; cursor: pointer; background: linear-gradient(100deg, var(--violet), var(--cyan)); color: #05060f; font-weight: 700; font-family: var(--mono); font-size: 13px; padding: 12px; border-radius: 9px; }
.btn-primary:hover { filter: brightness(1.08); }
.sc-locked { font-size: 12px; color: var(--ink-dim); line-height: 1.5; background: var(--bg-hi); border: 1px dashed var(--divider); border-radius: 9px; padding: 12px; }

.causal-box { margin-top: 14px; background: var(--bg-card); border: 1px solid var(--divider); border-left: 3px solid var(--violet); border-radius: 10px; padding: 16px; }
.causal-box.warn { border-left-color: var(--warn); }
.cv-h { font-family: var(--mono); font-size: 11px; color: var(--violet); margin-bottom: 8px; }
.causal-box.warn .cv-h { color: var(--warn); }
.cv-effect { font-family: 'VT323', var(--mono); font-size: 30px; color: var(--mint); }
.cv-se { font-size: 13px; color: var(--ink-dim); font-family: var(--mono); }
.cv-row { font-size: 11.5px; color: var(--ink-dim); margin: 8px 0; } .cv-row b { color: var(--ink); }
.cv-t, .cv-take { font-size: 12.5px; line-height: 1.55; } .cv-take b, .cv-t b { color: var(--mint); }
.decision { margin-top: 12px; background: var(--bg-deep); border-left: 3px solid var(--mint); border-radius: 10px; padding: 14px; }
.dec-lbl { font-family: var(--mono); font-size: 10px; letter-spacing: 1px; color: var(--mint); margin-bottom: 8px; }
.dec-rec { font-size: 13.5px; line-height: 1.55; }

.demo-foot { text-align: center; padding: 50px 24px 60px; border-top: 1px solid var(--divider); margin-top: 20px; }
.foot-line { font-size: 14px; color: var(--ink-dim); margin-bottom: 18px; }
.demo-dl--big { display: inline-block; font-size: 14px; padding: 14px 26px; }
.foot-meta { font-family: var(--mono); font-size: 11px; color: var(--ink-faint); margin-top: 20px; }

.rz-3 .rz-step { color: var(--mint); }
.sc-teaser { font-size: 12px; color: var(--ink-dim); line-height: 1.5; background: var(--bg-hi); border: 1px dashed var(--divider); border-radius: 9px; padding: 12px; }
.sc-teaser a { color: var(--cyan); }
.dec-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; align-items: center; }
.dec-src { font-family: var(--mono); font-size: 11px; color: var(--ink-faint); }
.dec-risk { font-size: 11px; padding: 2px 9px; border-radius: 999px; }
.dec-risk--crit { background: rgba(255,85,119,0.14); color: var(--crit); }
.dec-risk--warn { background: rgba(255,154,74,0.14); color: var(--warn); }
.dec-risk--info { background: rgba(136,255,209,0.12); color: var(--mint); }
.dec-cta { display: inline-block; margin-top: 16px; font-family: var(--mono); font-size: 12.5px; background: linear-gradient(100deg, var(--mint), var(--cyan)); color: #04040d; font-weight: 700; padding: 12px 18px; border-radius: 9px; }
.dec-cta:hover { filter: brightness(1.06); }

.statbar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 4px 0 16px; }
.stat { background: var(--bg-deep); border: 1px solid var(--divider); border-radius: 10px; padding: 12px 14px; }
.stat-n { font-family: 'VT323', var(--mono); font-size: 30px; line-height: 1; color: var(--cyan); }
.stat-n.stat-mint { color: var(--mint); }
.stat-l { font-family: var(--mono); font-size: 10px; letter-spacing: 1px; text-transform: uppercase; color: var(--ink-faint); margin-top: 4px; }
.methods-strip { background: var(--bg-deep); border: 1px solid var(--divider); border-radius: 12px; padding: 14px 16px; margin-bottom: 18px; }
.ms-lbl { font-family: var(--mono); font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--violet); margin-bottom: 10px; }
.ms-badges { display: flex; flex-wrap: wrap; gap: 7px; }
.mbadge { font-family: var(--mono); font-size: 11px; color: var(--ink); background: var(--bg-hi); border: 1px solid var(--divider); border-radius: 6px; padding: 4px 10px; }
.ms-also { font-size: 11.5px; color: var(--ink-faint); margin-top: 12px; line-height: 1.9; }
.ms-also .also { color: var(--ink-dim); border-bottom: 1px dotted var(--ink-faint); margin: 0 3px; }
.also-strip { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--divider); font-size: 11.5px; color: var(--ink-dim); line-height: 2; }
.as-lbl { color: var(--ink-faint); font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.5px; margin-right: 6px; }
.as-item { display: inline-block; background: var(--bg-hi); border-radius: 6px; padding: 3px 9px; margin: 0 4px; color: var(--cyan); }
@media (max-width: 720px) { .statbar { grid-template-columns: repeat(2, 1fr); } }

/* ===== desktop-window mock ===== */
.demo-result { max-width: 1200px; }
.win { border: 1px solid var(--bevel, rgba(124,92,255,0.25)); border-radius: 14px; overflow: hidden; background: var(--bg-deep); box-shadow: 0 30px 80px rgba(0,0,0,0.55); }
.win-bar { display: flex; align-items: center; gap: 12px; padding: 9px 14px; background: #0b0d22; border-bottom: 1px solid var(--divider); }
.win-dots { display: flex; gap: 6px; }
.win-dots i { width: 11px; height: 11px; border-radius: 50%; background: #2a3352; display: block; }
.win-dots i:nth-child(1){ background:#ff5f57; } .win-dots i:nth-child(2){ background:#febc2e; } .win-dots i:nth-child(3){ background:#28c840; }
.win-title { font-family: var(--mono); font-size: 12px; color: var(--ink-dim); letter-spacing: 1px; }
.win-dl { margin-left: auto; font-family: var(--mono); font-size: 11px; background: var(--cyan); color: #04040d; padding: 5px 12px; border-radius: 6px; font-weight: 700; }
.win-body { display: grid; grid-template-columns: 190px 1fr; min-height: 620px; }
.win-side { background: #0a0c1e; border-right: 1px solid var(--divider); padding: 14px 10px; }
.side-g { font-family: var(--mono); font-size: 9.5px; letter-spacing: 2px; color: var(--ink-faint); margin: 14px 8px 6px; }
.side-g:first-child { margin-top: 2px; }
.side-item { display: flex; align-items: center; gap: 10px; width: 100%; text-align: left; border: none; background: transparent; color: var(--ink-dim); font-family: var(--ui); font-size: 13px; padding: 8px 10px; border-radius: 7px; cursor: pointer; }
.side-item:hover { background: var(--bg-card); color: var(--ink); }
.side-item.on { background: var(--bg-card); color: var(--cyan); box-shadow: inset 2px 0 0 var(--cyan); }
.si-ic { width: 16px; text-align: center; opacity: 0.9; }
.side-foot { font-family: var(--mono); font-size: 9.5px; color: var(--ink-faint); margin: 18px 10px 0; }
.win-main { padding: 22px 26px; overflow-x: auto; }
.crumb { font-family: var(--mono); font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 16px; }
.crumb b { color: var(--cyan); }
.ov-banner { background: rgba(136,255,209,0.06); border: 1px solid rgba(136,255,209,0.25); border-radius: 9px; padding: 11px 14px; font-family: var(--mono); font-size: 12px; color: var(--mint); margin-bottom: 16px; }
.ov-hint, .view-note { font-size: 12.5px; color: var(--ink-dim); line-height: 1.6; margin: 14px 0; }
.view-note { background: var(--bg-card); border-left: 2px solid var(--violet); border-radius: 8px; padding: 12px 14px; }
.view-empty { color: var(--ink-faint); font-size: 13px; padding: 40px; text-align: center; background: var(--bg-card); border-radius: 12px; }
.stat-s { font-size: 10px; color: var(--ink-faint); margin-top: 3px; }
.svg-wrap { background: var(--bg); border: 1px solid var(--divider); border-radius: 12px; padding: 12px; overflow-x: auto; }
.bigsvg { width: 100%; height: auto; display: block; min-width: 620px; }
/* data sub-tabs */
.dtabs { display: flex; gap: 3px; background: var(--bg-deep); border-radius: 8px; padding: 3px; width: fit-content; margin-bottom: 16px; }
.dtab { border: none; background: transparent; color: var(--ink-dim); font-family: var(--mono); font-size: 12px; padding: 6px 16px; border-radius: 6px; cursor: pointer; }
.dtab.on { background: var(--bg-hi); color: var(--cyan); }
.dist-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.dist { background: var(--bg-deep); border: 1px solid var(--divider); border-radius: 10px; padding: 12px; }
.dist-name { font-family: var(--mono); font-size: 12px; color: var(--cyan); margin-bottom: 8px; }
.dist-svg { width: 100%; height: 62px; display: block; }
.dist-meta { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 9.5px; color: var(--ink-faint); margin-top: 6px; }
.qwrap { overflow-x: auto; }
.q-sub { font-family: var(--mono); font-size: 11px; color: var(--ink-faint); margin-bottom: 10px; }
.qtable { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12px; }
.qtable th { text-align: right; color: var(--ink-faint); font-weight: 400; font-size: 10px; letter-spacing: 1px; text-transform: uppercase; padding: 8px 12px; border-bottom: 1px solid var(--divider); }
.qtable th:first-child { text-align: left; }
.qtable td { text-align: right; padding: 8px 12px; border-bottom: 1px solid var(--divider); color: var(--ink-dim); }
.qtable td.q-name { text-align: left; color: var(--ink); }
.q-ok { color: var(--mint); } .q-bad { color: var(--warn); }
/* forecast */
.fc-meta { font-size: 12px; color: var(--ink-dim); margin-bottom: 14px; } .fc-meta b { color: var(--cyan); }
.fc-headline { background: var(--bg-card); border-radius: 12px; padding: 16px; margin-bottom: 14px; display: inline-block; }
.fch-l { font-family: var(--mono); font-size: 10px; letter-spacing: 1px; color: var(--ink-faint); }
.fch-v { font-family: 'VT323', var(--mono); font-size: 40px; color: var(--mint); line-height: 1; }
.fch-ci { font-family: var(--mono); font-size: 11px; color: var(--ink-dim); }
.sc-teaser { margin-top: 12px; font-size: 11px; color: var(--ink-dim); background: var(--bg-hi); border: 1px dashed var(--divider); border-radius: 8px; padding: 10px; }
@media (max-width: 860px) { .win-body { grid-template-columns: 1fr; } .win-side { display: none; } }