/* ====================================================================
   SPX Edge Research — shared site styles
   ==================================================================== */

:root {
  --bg:        #0e1116;
  --panel:     #161b22;
  --panel-2:   #1c232c;
  --border:    #30363d;
  --text:      #e6edf3;
  --muted:     #9da7b1;
  --accent:    #58a6ff;
  --accent-2:  #79c0ff;
  --green:     #3fb950;
  --red:       #f85149;
  --yellow:    #f0c674;
  --purple:    #a371f7;
  --navy:      #1F4E78;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); text-decoration: underline; }
strong { color: var(--text); }
code, pre, kbd { font-family: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace; }
img { max-width: 100%; height: auto; display: block; }

/* ----------------- Navigation ----------------- */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(14, 17, 22, 0.92);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
}
.brand { font-size: 15px; font-weight: 700; color: var(--text); letter-spacing: 0.2px; display: inline-flex; align-items: center; gap: 10px; }
.brand .dot { width: 10px; height: 10px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 12px rgba(88,166,255,0.6); }
.brand small { color: var(--muted); font-weight: 400; font-size: 12px; margin-left: 6px; }
.site-nav nav { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; }
.site-nav nav a { color: var(--muted); font-size: 14px; padding: 8px 14px; border-radius: 6px; text-decoration: none; transition: 120ms color, 120ms background; }
.site-nav nav a:hover { color: var(--text); background: var(--panel); }
.site-nav nav a.active { color: var(--text); background: var(--panel); }

/* ----------------- Hero ----------------- */
.hero {
  padding: 84px 24px 64px;
  background:
    radial-gradient(circle at 20% 0%, rgba(88,166,255,0.18), transparent 60%),
    radial-gradient(circle at 80% 0%, rgba(63,185,80,0.10), transparent 50%),
    var(--bg);
  border-bottom: 1px solid var(--border);
}
.hero-inner { max-width: 1100px; margin: 0 auto; }
.eyebrow { display: inline-block; font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--accent); border: 1px solid rgba(88,166,255,0.3); border-radius: 4px; padding: 4px 10px; margin-bottom: 18px; }
h1 { margin: 0 0 16px 0; font-size: 52px; line-height: 1.05; letter-spacing: -0.7px; max-width: 960px; }
h1 .hl { color: var(--accent); }
.subtitle { color: var(--muted); font-size: 19px; max-width: 800px; margin: 0 0 28px 0; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 8px; font-size: 15px; font-weight: 600;
  text-decoration: none; transition: 160ms all;
  border: 1px solid transparent;
}
.btn-primary   { background: var(--accent); color: #0e1116; }
.btn-primary:hover { background: var(--accent-2); color: #0e1116; text-decoration: none; }
.btn-secondary { background: transparent; color: var(--text); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.btn:after { content: '→'; transition: 160ms transform; }
.btn:hover:after { transform: translateX(3px); }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-top: 32px; }
.kpi { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px; }
.kpi .v { font-size: 22px; font-weight: 700; color: var(--accent); }
.kpi .l { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ----------------- Content area ----------------- */
main { max-width: 1100px; margin: 0 auto; padding: 56px 24px 80px; }
section { margin-bottom: 72px; }
.section-eyebrow { display: inline-block; font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.section-eyebrow.green  { color: var(--green); }
.section-eyebrow.yellow { color: var(--yellow); }
.section-eyebrow.blue   { color: var(--accent); }
h2 { font-size: 36px; margin: 0 0 12px 0; letter-spacing: -0.4px; line-height: 1.15; }
h3 { font-size: 18px; margin: 0 0 6px 0; color: var(--text); }
p.lead { font-size: 17px; color: var(--muted); margin: 0 0 24px 0; max-width: 800px; line-height: 1.6; }
p.section-lead { color: var(--muted); margin: 0 0 24px 0; max-width: 800px; }
ul.bare, ol.bare { margin: 0; padding-left: 22px; color: var(--text); }
ul.bare li, ol.bare li { margin: 6px 0; }

/* Centred narrow column */
.narrow { max-width: 760px; margin: 0 auto; }

/* ----------------- Strategy module diagram (hero-adjacent) ----------------- */
.modules-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 28px;
}
.module-tile {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 18px 16px;
  position: relative;
  overflow: hidden;
}
.module-tile:before {
  content: '';
  position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--accent);
}
.module-tile.m1:before { background: var(--green); }
.module-tile.m2:before { background: var(--yellow); }
.module-tile.m3:before { background: var(--accent); }
.module-tile .label { font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted); }
.module-tile h3 { font-size: 17px; margin: 4px 0 8px 0; }
.module-tile p { font-size: 13.5px; color: var(--muted); margin: 0 0 12px 0; line-height: 1.5; }
.module-tile .meta { display: flex; gap: 14px; font-size: 12px; color: var(--muted); padding-top: 10px; border-top: 1px dashed var(--border); }
.module-tile .meta span strong { color: var(--text); font-weight: 600; }

@media (max-width: 760px) {
  .modules-row { grid-template-columns: 1fr; }
}

/* ----------------- Decision flow ----------------- */
.decision-flow {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 28px 24px;
}
.decision-flow h3 { color: var(--accent); margin-top: 0; font-size: 16px; letter-spacing: 0.5px; text-transform: uppercase; }
.flow-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  margin-top: 16px;
}
.flow-q {
  padding: 18px 18px 18px 0;
  border-right: 1px solid var(--border);
  position: relative;
}
.flow-q:last-child { border-right: 0; padding-right: 0; }
.flow-q + .flow-q { padding-left: 24px; }
.flow-q .num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  background: rgba(88,166,255,0.15); color: var(--accent);
  border-radius: 50%; font-weight: 700; font-size: 13px;
  margin-bottom: 8px;
}
.flow-q h4 { margin: 0 0 6px 0; font-size: 15px; }
.flow-q p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.55; }
.flow-q em { color: var(--text); font-style: normal; font-weight: 600; }

@media (max-width: 760px) {
  .flow-grid { grid-template-columns: 1fr; }
  .flow-q { border-right: 0; border-bottom: 1px solid var(--border); padding: 16px 0; }
  .flow-q + .flow-q { padding-left: 0; }
  .flow-q:last-child { border-bottom: 0; }
}

/* ----------------- Why grid ----------------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}
.why-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px 22px 20px;
}
.why-card .num { color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: 1px; margin-bottom: 8px; }
.why-card h3 { margin: 0 0 8px 0; font-size: 16px; }
.why-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }

/* ----------------- Proof / stat-bar ----------------- */
.stat-block {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  margin-bottom: 14px;
}
.stat-block .stat-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 8px; flex-wrap: wrap; gap: 8px; }
.stat-block .stat-head h3 { font-size: 15px; margin: 0; color: var(--text); font-weight: 600; }
.stat-block .stat-head .n { font-size: 12px; color: var(--muted); }
.stat-block .figure { font-size: 28px; font-weight: 700; line-height: 1.1; margin: 6px 0 4px 0; font-variant-numeric: tabular-nums; letter-spacing: -0.3px; }
.stat-block .figure.green { color: var(--green); }
.stat-block .figure.red   { color: var(--red); }
.stat-block .figure.amber { color: var(--yellow); }
.stat-block .figure.blue  { color: var(--accent); }
.stat-block .desc { color: var(--muted); font-size: 13.5px; margin: 6px 0 0 0; line-height: 1.5; }

/* dual stat blocks */
.dual-stat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  margin-bottom: 14px;
}
.dual-stat .side { padding: 8px 14px; border-left: 3px solid var(--border); }
.dual-stat .side.win  { border-left-color: var(--green); }
.dual-stat .side.lose { border-left-color: var(--red); }
.dual-stat .side .label { font-size: 12px; color: var(--muted); letter-spacing: 0.5px; }
.dual-stat .side .figure { font-size: 24px; font-weight: 700; }
.dual-stat .side .figure.green { color: var(--green); }
.dual-stat .side .figure.red   { color: var(--red); }
.dual-stat .side .small { font-size: 13px; color: var(--muted); }
.dual-stat-title { grid-column: 1/-1; font-size: 15px; margin: 0 0 6px 0; }
.dual-stat-title .n { font-size: 12px; color: var(--muted); margin-left: 8px; font-weight: 400; }

@media (max-width: 640px) {
  .dual-stat { grid-template-columns: 1fr; }
}

/* ----------------- Bar chart strip ----------------- */
.bar-chart-row {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}
.bar-row {
  display: grid;
  grid-template-columns: 90px 1fr 70px;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}
.bar-row .name { color: var(--muted); }
.bar-row .track { background: var(--panel-2); height: 16px; border-radius: 4px; overflow: hidden; position: relative; }
.bar-row .fill { height: 100%; background: var(--accent); border-radius: 4px; transition: 200ms width; }
.bar-row .fill.green  { background: var(--green); }
.bar-row .fill.red    { background: var(--red); }
.bar-row .fill.amber  { background: var(--yellow); }
.bar-row .val { color: var(--text); font-variant-numeric: tabular-nums; text-align: right; font-weight: 600; }

/* ----------------- Card grid (general) ----------------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 22px 22px 20px; transition: 180ms transform, 180ms border-color, 180ms background;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-2px); border-color: var(--accent); }
.card .tag { display: inline-block; font-size: 11px; letter-spacing: 0.5px; text-transform: uppercase; color: var(--muted); background: var(--panel-2); padding: 3px 8px; border-radius: 4px; margin-bottom: 12px; }
.card .tag.green  { background: rgba(63,185,80,0.15);  color: var(--green); }
.card .tag.yellow { background: rgba(240,198,116,0.15); color: var(--yellow); }
.card .tag.blue   { background: rgba(88,166,255,0.15);  color: var(--accent); }
.card h3 { font-size: 18px; margin: 0 0 6px 0; }
.card p { color: var(--muted); margin: 0 0 14px 0; font-size: 14px; line-height: 1.5; }
.card .meta { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--border); font-size: 12px; color: var(--muted); }
.card a.cta {
  display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600;
  color: var(--accent); text-decoration: none;
}
.card a.cta:after { content: '→'; transition: 160ms transform; }
.card a.cta:hover:after { transform: translateX(3px); }

/* ----------------- Module visual blocks (playbook) ----------------- */
.module {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  margin-bottom: 28px; overflow: hidden;
}
.module-header { padding: 20px 24px; background: linear-gradient(135deg, rgba(88,166,255,0.08), transparent); border-bottom: 1px solid var(--border); }
.module-header .id { font-size: 12px; color: var(--muted); letter-spacing: 1.5px; text-transform: uppercase; }
.module-header h2 { margin: 4px 0 6px 0; }
.module-header .lead { color: var(--muted); font-size: 14px; }
.module-body { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.module-rules { padding: 24px; border-right: 1px solid var(--border); }
.module-rules ol, .module-rules ul { padding-left: 20px; margin: 8px 0 16px; }
.module-rules li { margin: 4px 0; color: var(--text); }
.module-rules h4 { font-size: 13px; letter-spacing: 0.5px; color: var(--accent); margin: 16px 0 4px; text-transform: uppercase; }
.module-rules h4:first-of-type { margin-top: 0; }
.module-stats { padding: 24px; background: var(--panel-2); }
.stat-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.stat-row:last-child { border-bottom: 0; }
.stat-row .label { color: var(--muted); }
.stat-row .val { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }
.stat-row .val.green { color: var(--green); }
.stat-row .val.red   { color: var(--red); }
.stat-row .val.amber { color: var(--yellow); }

@media (max-width: 760px) {
  .module-body { grid-template-columns: 1fr; }
  .module-rules { border-right: 0; border-bottom: 1px solid var(--border); }
}

/* ----------------- Code blocks ----------------- */
.code-block {
  background: #0a0d12; border: 1px solid var(--border); border-radius: 8px;
  padding: 18px; position: relative; overflow: hidden; margin: 14px 0;
}
.code-block pre { margin: 0; font-size: 12.5px; line-height: 1.55; overflow-x: auto; color: #cbd5e1; }
.code-block .copy-btn {
  position: absolute; top: 12px; right: 12px;
  background: var(--panel); border: 1px solid var(--border); color: var(--muted);
  font-size: 12px; padding: 6px 12px; border-radius: 5px; cursor: pointer;
  transition: 160ms color, 160ms background, 160ms border-color;
}
.code-block .copy-btn:hover { color: var(--text); background: var(--panel-2); border-color: var(--accent); }
.code-block .copy-btn.ok { color: var(--green); border-color: var(--green); }

/* ----------------- Tabs ----------------- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 0; flex-wrap: wrap; }
.tabs button {
  background: transparent; border: 0; color: var(--muted);
  padding: 12px 18px; font-size: 14px; cursor: pointer;
  border-bottom: 2px solid transparent; transition: 120ms color, 120ms border-color;
}
.tabs button:hover { color: var(--text); }
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); }
.tab-panel { display: none; padding-top: 20px; }
.tab-panel.active { display: block; }

/* ----------------- Decision flow (playbook) ----------------- */
.flow {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 24px; margin-bottom: 28px;
}
.flow h3 { margin-top: 0; color: var(--accent); }
.flow-step { display: grid; grid-template-columns: 50px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px dashed var(--border); }
.flow-step:last-child { border-bottom: 0; }
.flow-step .num {
  font-size: 18px; font-weight: 700; color: var(--accent);
  background: rgba(88,166,255,0.12); border-radius: 50%; width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
}
.flow-step h4 { margin: 0 0 4px 0; }
.flow-step p { margin: 0; color: var(--muted); font-size: 14px; }

/* ----------------- Misc ----------------- */
.note {
  background: rgba(240,198,116,0.08); border-left: 3px solid var(--yellow);
  border-radius: 4px; padding: 14px 18px; color: var(--text); font-size: 14px; margin: 18px 0;
}
.note.warn { background: rgba(248,81,73,0.08); border-left-color: var(--red); }
.note strong { color: var(--yellow); }
.note.warn strong { color: var(--red); }

footer.site-foot {
  border-top: 1px solid var(--border); padding: 32px 24px;
  text-align: center; color: var(--muted); font-size: 13px;
}
footer.site-foot a { color: var(--muted); text-decoration: underline; }

@media (max-width: 640px) {
  h1 { font-size: 36px; }
  h2 { font-size: 28px; }
  .hero { padding: 56px 18px 36px; }
  main { padding: 36px 18px 60px; }
  .site-nav { padding: 12px 16px; }
}