:root {
  color-scheme: light;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --soft: #86868b;
  --line: rgba(60, 60, 67, 0.13);
  --line-strong: rgba(60, 60, 67, 0.2);
  --surface: #f5f5f7;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-solid: #ffffff;
  --blue: #007aff;
  --cyan: #30b0c7;
  --red: #ff3b30;
  --orange: #ff9500;
  --green: #34c759;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.08);
  --shadow-soft: 0 10px 28px rgba(0, 0, 0, 0.055);
  --radius: 12px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--surface);
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(245, 245, 247, 0) 260px),
    var(--surface);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
select,
input {
  font: inherit;
}

button {
  appearance: none;
}

.app-shell {
  min-height: 100vh;
  padding: 28px;
}

.workspace {
  max-width: 1440px;
  margin: 0 auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-soft);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  backdrop-filter: blur(22px) saturate(160%);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 720;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  max-width: 780px;
  font-size: clamp(30px, 4vw, 50px);
  font-weight: 760;
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 10px;
  font-size: 16px;
  font-weight: 720;
}

.status-pill {
  min-width: 240px;
  max-width: 360px;
  border: 1px solid rgba(0, 122, 255, 0.16);
  border-radius: 999px;
  background: rgba(0, 122, 255, 0.075);
  color: #005ecb;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 720;
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.74);
  white-space: normal;
}

.sim-grid {
  display: grid;
  grid-template-columns: minmax(280px, 328px) minmax(0, 1fr);
  gap: 18px;
  padding-top: 18px;
}

.sim-grid > * {
  min-width: 0;
}

.control-panel,
.results-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  -webkit-backdrop-filter: blur(28px) saturate(150%);
  backdrop-filter: blur(28px) saturate(150%);
}

.control-panel {
  position: sticky;
  top: 18px;
  padding: 18px;
  display: grid;
  gap: 16px;
  align-content: start;
}

.field,
.slider-field {
  display: grid;
  gap: 8px;
}

label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 720;
  letter-spacing: 0;
}

select {
  appearance: none;
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background:
    url("data:image/svg+xml,%3Csvg width='13' height='8' viewBox='0 0 13 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1.5 1.5l5 5 5-5' fill='none' stroke='%236e6e73' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") right 13px center / 13px 8px no-repeat,
    linear-gradient(180deg, #ffffff 0%, #f7f7f8 100%);
  color: var(--ink);
  padding: 0 38px 0 12px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.035);
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

select:hover {
  border-color: var(--line-strong);
}

select:focus-visible,
input[type="range"]:focus-visible {
  outline: 3px solid rgba(0, 122, 255, 0.24);
  outline-offset: 2px;
}

.slider-label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

output {
  min-width: 48px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 760;
  text-align: right;
}

input[type="range"] {
  appearance: none;
  width: 100%;
  height: 22px;
  accent-color: var(--blue);
  cursor: pointer;
  background: transparent;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(60, 60, 67, 0.16);
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 21px;
  height: 21px;
  margin-top: -7.5px;
  border: 1px solid rgba(60, 60, 67, 0.16);
  border-radius: 999px;
  background: #ffffff;
  box-shadow: 0 2px 7px rgba(0, 0, 0, 0.22), 0 0 0 1px rgba(255, 255, 255, 0.75) inset;
}

input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(60, 60, 67, 0.16);
}

input[type="range"]::-moz-range-thumb {
  width: 21px;
  height: 21px;
  border: 1px solid rgba(60, 60, 67, 0.16);
  border-radius: 999px;
  background: #ffffff;
  box-shadow: 0 2px 7px rgba(0, 0, 0, 0.22);
}

.results-panel {
  padding: 18px;
  min-width: 0;
  overflow: hidden;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  min-height: 120px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.76);
  padding: 15px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86);
  overflow: hidden;
}

.metric span,
.metric small {
  color: var(--muted);
}

.metric span {
  font-size: 13px;
  font-weight: 680;
}

.metric small {
  font-size: 12px;
}

.metric strong {
  font-size: clamp(30px, 3.8vw, 44px);
  font-weight: 780;
  line-height: 1;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

.map-and-bars {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 34%);
  gap: 16px;
  margin-top: 16px;
  align-items: stretch;
  min-width: 0;
  overflow: visible;
}

.world-board {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: clamp(380px, 34vw, 520px);
  min-height: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #d7e8ed;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.world-map {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.graticule path {
  fill: none;
  stroke: rgba(48, 84, 105, 0.11);
  stroke-width: 0.12;
}

.land path {
  fill: #f6f1e6;
  stroke: rgba(70, 78, 86, 0.28);
  stroke-width: 0.2;
  vector-effect: non-scaling-stroke;
}

.route-line {
  fill: none;
  stroke: rgba(0, 122, 255, 0.82);
  stroke-width: 0.58;
  stroke-dasharray: 1.8 1.3;
  stroke-linecap: round;
  opacity: 0.82;
  vector-effect: non-scaling-stroke;
}

#countryLayer,
#chokeLayer {
  position: absolute;
  inset: 0;
}

.map-legend {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 6;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  max-width: calc(100% - 24px);
  padding: 7px;
  border: 1px solid rgba(60, 60, 67, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.09);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  backdrop-filter: blur(18px) saturate(150%);
}

.map-legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 22px;
  padding: 0 7px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 720;
}

.map-legend i {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.8);
}

.map-legend .risk-low {
  background: var(--green);
}

.map-legend .risk-mid {
  background: var(--orange);
}

.map-legend .risk-high {
  background: var(--red);
}

.country-marker {
  position: absolute;
  width: var(--size);
  height: var(--size);
  left: var(--x);
  top: var(--y);
  transform: translate(-50%, -50%);
  border: 0;
  border-radius: 999px;
  background: transparent;
  padding: 0;
  cursor: help;
  z-index: 2;
  touch-action: manipulation;
}

.marker-dot {
  display: block;
  width: 100%;
  height: 100%;
  border: 2px solid rgba(255, 255, 255, 0.96);
  border-radius: 999px;
  background: var(--risk);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.28);
  opacity: 0.92;
  transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

.country-marker:hover .marker-dot,
.country-marker:focus-visible .marker-dot {
  transform: scale(1.08);
  opacity: 1;
}

.country-marker:focus-visible {
  outline: none;
}

.country-marker:focus-visible .marker-dot {
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.24), 0 8px 18px rgba(0, 0, 0, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.country-marker.is-actor .marker-dot {
  outline: 3px solid rgba(0, 122, 255, 0.72);
  outline-offset: 2px;
}

.country-marker.is-target .marker-dot {
  outline: 3px solid rgba(255, 59, 48, 0.74);
  outline-offset: 2px;
}

.country-marker.is-actor,
.country-marker.is-target {
  z-index: 4;
}

.country-label {
  position: absolute;
  left: 50%;
  top: calc(100% + 5px);
  transform: translateX(-50%);
  min-width: 54px;
  max-width: 112px;
  padding: 3px 6px;
  border: 1px solid rgba(60, 60, 67, 0.12);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  font-size: 10px;
  font-weight: 760;
  line-height: 1.25;
  text-align: center;
  pointer-events: none;
  white-space: normal;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.1);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.country-marker:not(.is-actor):not(.is-target) .country-label {
  display: none;
}

.country-marker:hover .country-label,
.country-marker:focus-visible .country-label {
  display: block;
  z-index: 5;
}

.chokepoint {
  position: absolute;
  left: var(--x);
  top: var(--y);
  display: flex;
  align-items: center;
  gap: 4px;
  transform: translate(-50%, -50%);
  color: rgba(29, 29, 31, 0.56);
  font-size: 10px;
  font-weight: 760;
  pointer-events: none;
  z-index: 1;
}

.chokepoint span {
  width: 7px;
  height: 7px;
  border: 1px solid currentColor;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
}

.chokepoint.is-active {
  color: var(--ink);
}

.chokepoint.is-active span {
  background: #ffcc00;
  box-shadow: 0 0 0 4px rgba(255, 204, 0, 0.22);
}

.impact-list {
  position: relative;
  z-index: 2;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.72);
  padding: 15px;
  display: grid;
  gap: 15px;
  align-content: start;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.bar-row {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.country-row {
  grid-template-columns: minmax(72px, 98px) minmax(0, 1fr);
  align-items: center;
}

.country-meta {
  display: grid;
  gap: 2px;
}

.country-meta span {
  color: var(--ink);
  font-size: 13px;
  font-weight: 760;
}

.country-meta small {
  color: var(--muted);
  font-size: 11px;
}

.bar-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  color: var(--ink);
  font-size: 13px;
  font-weight: 760;
}

.bar-head span {
  min-width: 0;
}

.bar-head span:first-child {
  overflow-wrap: anywhere;
}

.bar-head span:last-child {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.bar-track {
  min-width: 0;
  height: 10px;
  border-radius: 999px;
  background: rgba(60, 60, 67, 0.12);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: var(--blue);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.32);
  transition: width 180ms ease;
}

.analysis-band {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  gap: 18px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.analysis-band > div {
  min-width: 0;
}

.analysis-band p {
  color: #3a3a3c;
  line-height: 1.66;
}

ol {
  margin: 0;
  padding-left: 22px;
  color: #3a3a3c;
  line-height: 1.7;
}

ol li {
  margin-bottom: 8px;
}

ol li strong {
  margin-left: 8px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

ol li small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.35;
}

.footnote {
  margin-top: 16px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.58;
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .topbar,
  .control-panel,
  .results-panel {
    background: rgba(255, 255, 255, 0.96);
  }
}

@media (max-width: 1120px) {
  .map-and-bars {
    grid-template-columns: 1fr;
  }

  .world-board {
    min-height: clamp(360px, 52vw, 500px);
  }
}

@media (max-width: 980px) {
  .app-shell {
    padding: 18px;
  }

  .topbar,
  .sim-grid,
  .map-and-bars,
  .analysis-band {
    grid-template-columns: 1fr;
  }

  .topbar {
    display: grid;
    align-items: start;
    gap: 18px;
  }

  .status-pill {
    width: 100%;
    max-width: none;
  }

  .control-panel {
    position: static;
  }

  .metric-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .world-board {
    height: clamp(340px, 58vw, 480px);
  }
}

@media (max-width: 560px) {
  .app-shell {
    padding: 10px;
  }

  .topbar,
  .control-panel,
  .results-panel {
    padding: 14px;
  }

  h1 {
    font-size: 30px;
  }

  .metric-strip {
    grid-template-columns: 1fr;
  }

  .world-board {
    height: 330px;
  }

  .country-label {
    min-width: 48px;
    max-width: 76px;
    font-size: 10px;
  }

  .chokepoint {
    max-width: 74px;
    font-size: 9px;
  }
}