:root {
  --systems-ink: #0f172a;
  --systems-muted: #64748b;
  --systems-line: #dbe4f0;
  --systems-panel: #ffffff;
  --systems-bg: #f4f7fb;
  --systems-primary: #2563eb;
  --systems-accent: #0891b2;
  --systems-warm: #facc15;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--systems-bg);
  color: var(--systems-ink);
  font-family: Inter, system-ui, sans-serif;
}

.systems-shell { max-width: 1440px; margin: 0 auto; padding: 2rem 1.25rem 5rem; }
.systems-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--systems-line);
  border-radius: 28px;
  padding: clamp(1.5rem, 4vw, 3.5rem);
  background: linear-gradient(135deg, #fff 0%, #eef4ff 58%, #e8fbff 100%);
}
.systems-hero::after {
  content: "";
  position: absolute;
  width: 310px;
  height: 310px;
  border-radius: 50%;
  right: -90px;
  top: -130px;
  background: radial-gradient(circle, rgba(8,145,178,.22), rgba(37,99,235,0));
}
.systems-kicker,
.systems-eyebrow {
  color: var(--systems-primary);
  font: 800 .72rem/1.4 "Roboto Mono", monospace;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.systems-hero h1 {
  max-width: 980px;
  margin: .75rem 0 .8rem;
  font-family: Outfit, Inter, sans-serif;
  font-size: clamp(2.5rem, 6.6vw, 5.8rem);
  line-height: .94;
  letter-spacing: -.055em;
}
.systems-hero p { max-width: 850px; margin: 0; color: var(--systems-muted); font-size: 1.05rem; line-height: 1.7; }
.prototype-flag {
  display: inline-flex;
  margin-top: 1.25rem;
  border: 1px solid #e4bd13;
  background: #fff7c2;
  color: #664d03;
  border-radius: 999px;
  padding: .55rem .8rem;
  font: 800 .68rem/1 "Roboto Mono", monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.systems-view-toggle {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  margin: 1rem 0 0;
  padding: .35rem;
  border: 1px solid var(--systems-line);
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(15,23,42,.04);
}
.systems-view-toggle legend { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.systems-view-toggle label { cursor: pointer; }
.systems-view-toggle input { position: absolute; opacity: 0; pointer-events: none; }
.systems-view-toggle span { display: block; border-radius: 999px; padding: .65rem .9rem; color: var(--systems-muted); font: 800 .7rem/1 "Roboto Mono", monospace; letter-spacing: .04em; text-transform: uppercase; }
.systems-view-toggle input:checked + span { background: var(--systems-ink); color: #fff; }
.systems-view-toggle input:focus-visible + span { outline: 3px solid rgba(37,99,235,.2); }

.systems-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .85rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--systems-line);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(15,23,42,.05);
}
.systems-controls[data-view="2"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
[data-third-country][hidden] { display: none; }
.control-field label { display: block; margin: 0 0 .4rem; color: var(--systems-muted); font: 800 .66rem/1.3 "Roboto Mono", monospace; letter-spacing: .08em; text-transform: uppercase; }
.control-field select { width: 100%; min-height: 46px; border: 1px solid #cbd8e8; border-radius: 11px; padding: .65rem .75rem; background: #fff; color: var(--systems-ink); font: 700 .9rem Inter, sans-serif; }
.control-field select:focus { outline: 3px solid rgba(37,99,235,.14); border-color: var(--systems-primary); }

.systems-toolbar {
  display: flex;
  align-items: center;
  gap: .75rem;
  min-height: 42px;
  margin: -.2rem 0 1rem;
  color: var(--systems-muted);
  font-size: .78rem;
}
.systems-copy-button {
  margin-left: auto;
  border: 1px solid #cbd8e8;
  border-radius: 999px;
  padding: .58rem .82rem;
  background: #fff;
  color: var(--systems-primary);
  font: 800 .68rem/1 "Roboto Mono", monospace;
  letter-spacing: .04em;
  cursor: pointer;
}
.systems-copy-button:hover { border-color: var(--systems-primary); }
.systems-copy-button:focus { outline: 3px solid rgba(37,99,235,.14); }
.systems-copy-status { min-width: 4.8rem; font-size: .72rem; }

.systems-profile-section { margin-bottom: 1rem; }
.systems-profile-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .8rem; }
.systems-profile-grid[data-view="2"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.systems-profile-card { border: 1px solid #e4ebf4; border-radius: 16px; padding: 1rem; background: #fbfdff; }
.systems-profile-country { color: var(--systems-primary); font: 800 .68rem/1.3 "Roboto Mono", monospace; letter-spacing: .08em; text-transform: uppercase; }
.systems-profile-card h3 { margin: .35rem 0 .2rem; font: 800 1.1rem/1.2 Outfit, Inter, sans-serif; }
.systems-profile-value { margin-top: .7rem; font: 800 1.65rem/1.05 "Roboto Mono", monospace; letter-spacing: -.04em; }
.systems-profile-rank { margin-top: .55rem; color: var(--systems-ink); font-size: .78rem; font-weight: 700; }
.systems-profile-note { margin-top: .22rem; color: var(--systems-muted); font-size: .72rem; line-height: 1.45; }

.systems-share-section { margin-bottom: 1rem; }
.systems-share-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 1rem; align-items: stretch; }
.systems-share-preview { min-height: 245px; border-radius: 20px; padding: 1.25rem; color: #f8fafc; background: linear-gradient(135deg, #061423 0%, #0b2238 58%, #075e68 100%); box-shadow: inset 0 0 0 1px rgba(255,255,255,.1); }
.share-preview-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; color: #b9c7db; font: 800 .67rem/1.3 "Roboto Mono", monospace; letter-spacing: .09em; text-transform: uppercase; }
.share-preview-brand { color: #fff; font-size: .85rem; }
.share-preview-title { margin: 1.35rem 0 .25rem; color: #38bdf8; font: 800 .68rem/1.3 "Roboto Mono", monospace; letter-spacing: .1em; text-transform: uppercase; }
.share-preview-metric { margin: 0 0 1rem; font: 800 clamp(1.45rem, 3vw, 2.35rem)/1 Outfit, Inter, sans-serif; letter-spacing: -.035em; }
.share-preview-values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .65rem; }
.share-preview-values[data-view="2"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.share-preview-country { border: 1px solid rgba(255,255,255,.14); border-radius: 13px; padding: .75rem; background: rgba(255,255,255,.06); }
.share-preview-country strong { display: block; color: #fff; font-size: .82rem; }
.share-preview-country b { display: block; margin-top: .45rem; font: 800 1.05rem/1.1 "Roboto Mono", monospace; }
.share-preview-country span { display: block; margin-top: .3rem; color: #b9c7db; font-size: .68rem; }
.share-preview-foot { margin-top: .85rem; color: #b9c7db; font-size: .66rem; line-height: 1.4; }
.systems-share-actions { display: grid; grid-template-columns: repeat(4, 52px); justify-content: center; align-content: start; gap: .7rem; }
.systems-share-actions button { width: 52px; height: 52px; display: grid; place-items: center; border: 0; border-radius: 13px; padding: 0; color: #fff; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease; }
.systems-share-actions button:hover { transform: translateY(-2px); box-shadow: 0 9px 20px rgba(15,23,42,.2); }
.systems-share-actions button:focus-visible { outline: 3px solid rgba(37,99,235,.28); outline-offset: 3px; }
.systems-share-actions svg { width: 23px; height: 23px; fill: currentColor; }
.systems-share-actions .share-x { background: #000; }
.systems-share-actions .share-linkedin { background: #0a66c2; }
.systems-share-actions .share-whatsapp { background: #25d366; }
.systems-share-actions .share-telegram { background: #0088cc; }
.systems-share-actions .share-reddit { background: #ff4500; }
.systems-share-actions .share-message { background: #34c759; }
.systems-share-actions .share-email { background: #dc2626; }
.systems-share-actions .share-download { background: #475569; }
.systems-share-status { grid-column: 1 / -1; min-height: 1rem; margin: .05rem 0 0; color: var(--systems-muted); font-size: .72rem; line-height: 1.4; text-align: center; }

.systems-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(360px, .8fr); gap: 1rem; align-items: start; }
.systems-card { border: 1px solid var(--systems-line); border-radius: 22px; background: var(--systems-panel); padding: 1.2rem; box-shadow: 0 18px 50px rgba(15,23,42,.045); }
.systems-card + .systems-card { margin-top: 1rem; }
.card-heading { display: flex; gap: 1rem; justify-content: space-between; align-items: start; margin-bottom: 1rem; }
.card-heading h2 { margin: .25rem 0 0; font-family: Outfit, Inter, sans-serif; font-size: 1.65rem; letter-spacing: -.025em; }
.card-heading p { max-width: 540px; margin: .3rem 0 0; color: var(--systems-muted); font-size: .86rem; line-height: 1.5; }

.comparison-table-wrap { overflow-x: auto; }
.comparison-table { width: 100%; min-width: 720px; border-collapse: collapse; }
.comparison-table th,
.comparison-table td { padding: .8rem .65rem; border-bottom: 1px solid #edf1f6; text-align: left; vertical-align: middle; }
.comparison-table thead th { color: var(--systems-muted); font: 800 .68rem/1.3 "Roboto Mono", monospace; letter-spacing: .08em; text-transform: uppercase; }
.metric-name { width: 29%; }
.metric-name strong { display: block; font-size: .84rem; }
.metric-name span { display: block; margin-top: .2rem; color: var(--systems-muted); font: 600 .65rem/1.3 "Roboto Mono", monospace; }
.metric-number { display: block; font-family: "Roboto Mono", monospace; font-weight: 800; }
.metric-year { color: var(--systems-muted); font-size: .67rem; }
.metric-track { height: 5px; margin-top: .42rem; border-radius: 8px; background: #e7edf5; overflow: hidden; }
.metric-fill { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--systems-primary), var(--systems-accent)); }

.metric-guide { margin-top: .9rem; border-top: 1px solid var(--systems-line); padding-top: .8rem; }
.metric-guide summary { color: var(--systems-ink); font: 800 .75rem/1.4 "Roboto Mono", monospace; letter-spacing: .04em; cursor: pointer; }
.metric-guide summary::marker { color: var(--systems-primary); }
.metric-guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .55rem 1rem; margin-top: .75rem; }
.metric-guide-grid p { margin: 0; color: var(--systems-muted); font-size: .72rem; line-height: 1.5; }
.metric-guide-grid strong, .metric-guide-note strong { color: var(--systems-ink); }
.metric-guide-note { margin: .75rem 0 0; border-left: 3px solid var(--systems-accent); padding: .55rem .7rem; color: var(--systems-muted); background: #f8fafc; font-size: .72rem; line-height: 1.5; }

.chart-frame { min-height: 330px; border: 1px solid #e7edf5; border-radius: 16px; background: #fbfdff; padding: .5rem; }
.chart-frame svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-axis { stroke: #bac7d6; stroke-width: 1; }
.chart-grid { stroke: #e5ebf3; stroke-width: 1; }
.chart-label { fill: #64748b; font: 600 11px Inter, sans-serif; }
.chart-dot { fill: #b9c6d6; opacity: .55; }
.chart-dot.selected { opacity: 1; stroke: white; stroke-width: 2.5; }
.chart-dot-label { fill: var(--systems-ink); font: 800 11px Inter, sans-serif; paint-order: stroke; stroke: #fff; stroke-width: 4px; stroke-linejoin: round; }
.trend-line { fill: none; stroke-width: 3; }
.trend-dot { stroke: #fff; stroke-width: 2; }
.empty-note { padding: 5rem 1rem; color: var(--systems-muted); text-align: center; }

.systems-method { margin-top: 1rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.method-list { margin: .7rem 0 0; padding-left: 1.2rem; color: var(--systems-muted); line-height: 1.65; font-size: .88rem; }
.source-list { display: grid; gap: .65rem; margin-top: .8rem; }
.source-row { padding: .8rem; border: 1px solid #e4ebf4; border-radius: 12px; }
.source-row strong { display: block; font-size: .8rem; }
.source-row span { display: block; margin-top: .2rem; color: var(--systems-muted); font-size: .72rem; line-height: 1.45; }
.systems-link { color: var(--systems-primary); font-weight: 800; }
.systems-note { margin-top: 1rem; color: var(--systems-muted); font-size: .75rem; line-height: 1.55; }

.systems-continue { margin-top: 1rem; }
.systems-continue h2 { margin: .35rem 0 1rem; font-family: Outfit, Inter, sans-serif; font-size: 1.65rem; letter-spacing: -.025em; }
.systems-continue-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .75rem; }
.systems-continue-grid a { display: block; min-height: 120px; border: 1px solid #e4ebf4; border-radius: 14px; padding: .9rem; color: var(--systems-ink); text-decoration: none; background: #fbfdff; }
.systems-continue-grid a:hover { border-color: var(--systems-primary); transform: translateY(-1px); }
.systems-continue-grid a:focus-visible { outline: 3px solid rgba(37,99,235,.18); }
.systems-continue-grid strong { display: block; font-size: .86rem; line-height: 1.35; }
.systems-continue-grid span { display: block; margin-top: .4rem; color: var(--systems-muted); font-size: .72rem; line-height: 1.5; }

@media (max-width: 980px) {
  .systems-controls { grid-template-columns: repeat(2, 1fr); }
  .systems-grid, .systems-method { grid-template-columns: 1fr; }
  .systems-profile-grid { grid-template-columns: 1fr; }
  .systems-profile-grid[data-view="2"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .systems-continue-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 580px) {
  .systems-shell { padding: 1rem .75rem 3rem; }
  .metric-guide-grid { grid-template-columns: 1fr; }
  .systems-hero { border-radius: 20px; }
  .systems-controls { grid-template-columns: 1fr; }
  .systems-toolbar { align-items: flex-start; flex-wrap: wrap; }
  .systems-copy-button { margin-left: 0; }
  .systems-card { border-radius: 17px; padding: .9rem; }
  .systems-profile-grid[data-view="2"], .systems-share-layout, .systems-continue-grid { grid-template-columns: 1fr; }
  .share-preview-values, .share-preview-values[data-view="2"] { grid-template-columns: 1fr; }
}