:root {
  --parent-font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --parent-font-size: 16px;
  --parent-line-height: 1.5;
  --parent-text: CanvasText;
  --parent-bg: transparent;
  --parent-bg-solid: #f4f5f7;
  --surface: color-mix(in srgb, var(--parent-bg, #fff) 92%, var(--parent-text, #000) 8%);
  --surface-strong: color-mix(in srgb, var(--parent-bg, #fff) 84%, var(--parent-text, #000) 16%);
  --stroke: color-mix(in srgb, var(--parent-text, #222) 28%, transparent);
  --stroke-strong: color-mix(in srgb, var(--parent-text, #222) 44%, transparent);
  --muted: color-mix(in srgb, var(--parent-text, #222) 72%, transparent);
  --focus: #2f74ff;
  --accent: #2f74ff;
  --display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --ui: "Avenir Next Condensed", "DIN Condensed", "Trebuchet MS", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--parent-bg, transparent);
  color: var(--parent-text, CanvasText);
  font-family: var(--parent-font-family);
  font-size: var(--parent-font-size);
  line-height: var(--parent-line-height);
  overflow: hidden;
}

.app {
  width: 100%;
  max-width: 760px;
  max-height: 700px;
  margin: 0 auto;
  padding: 4px;
  display: grid;
  gap: 8px;
}

.tool-header {
  min-height: 54px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  padding: 3px 5px 7px;
  border-bottom: 1px solid var(--stroke-strong);
}

.tool-kicker {
  margin: 0 0 2px;
  color: var(--muted);
  font-family: var(--ui);
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tool-signature {
  flex: none;
  color: var(--muted);
  font-family: var(--ui);
  font-size: 0.63rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
}

.tool-signature:hover {
  color: var(--parent-text);
}

.title {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.55rem, 3.15vw, 2.15rem);
  line-height: 1.08;
  letter-spacing: 0.004em;
  font-weight: 700;
}

.model {
  position: relative;
  height: 476px;
  border: 1px solid color-mix(in srgb, var(--stroke) 90%, transparent);
  border-top-width: 3px;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--parent-text) 3%, transparent) 1px, transparent 1px) 0 0 / 30px 30px,
    linear-gradient(color-mix(in srgb, var(--parent-text) 3%, transparent) 1px, transparent 1px) 0 0 / 30px 30px,
    color-mix(in srgb, var(--parent-bg, #fff) 97%, var(--parent-text, #000) 3%);
  padding: 12px 12px 10px;
  transition: border-color 180ms ease;
  overflow: hidden;
}

.model-intro {
  margin: 0 2px 8px;
  padding: 7px 10px;
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.model.is-active {
  border-color: color-mix(in srgb, var(--accent) 36%, var(--stroke));
}

.links {
  position: absolute;
  inset: 0;
  width: auto;
  height: auto;
  overflow: visible;
  pointer-events: none;
  z-index: 1;
}

.links path {
  fill: none;
  stroke: color-mix(in srgb, var(--stroke-strong) 88%, transparent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  marker-end: url(#arrow);
  transition: stroke 180ms ease, stroke-width 180ms ease;
}

.links marker path {
  fill: color-mix(in srgb, var(--stroke-strong) 92%, transparent);
  transition: fill 180ms ease;
}

.model[data-active-node="orsaker"] .flow-1,
.model[data-active-node="fenomen"] .flow-1,
.model[data-active-node="fenomen"] .flow-2,
.model[data-active-node="konsekvenser"] .flow-2,
.model[data-active-node="konsekvenser"] .flow-3,
.model[data-active-node="atgarder"] .flow-3,
.model[data-active-node="atgarder"] .flow-4,
.model[data-active-node="orsaker"] .flow-4 {
  stroke: color-mix(in srgb, var(--accent) 72%, var(--stroke-strong));
  stroke-width: 2.5;
}

.node {
  position: absolute;
  border: 1px solid color-mix(in srgb, var(--stroke-strong) 86%, transparent);
  border-radius: 6px;
  background: var(--surface);
  color: color-mix(in srgb, var(--parent-text, #222) 94%, #000 6%);
  font: inherit;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: 0.01em;
  min-width: 182px;
  height: 68px;
  display: inline-grid;
  place-items: center;
  padding: 0 14px;
  cursor: pointer;
  transition: transform 170ms ease, box-shadow 170ms ease, border-color 170ms ease, background-color 170ms ease;
  z-index: 3;
}

.node:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 0 color-mix(in srgb, var(--parent-text, #222) 14%, transparent);
}

.node.is-active {
  border-color: color-mix(in srgb, var(--accent) 52%, var(--stroke-strong));
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 22%, transparent);
}

.node:focus-visible,
.meta-item:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.node--cause {
  left: 24px;
  top: 52px;
  background: color-mix(in srgb, #e95162 18%, var(--surface));
}

.node--phenomenon {
  left: 292px;
  top: 52px;
  background: color-mix(in srgb, #2bb64f 19%, var(--surface));
}

.node--consequence {
  right: 24px;
  top: 52px;
  background: color-mix(in srgb, #efb700 24%, var(--surface));
}

.node--actions {
  left: 300px;
  top: 218px;
  background: color-mix(in srgb, #3194e5 20%, var(--surface));
}

.meta {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 10px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  z-index: 4;
}

.meta-item {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid color-mix(in srgb, var(--stroke) 85%, transparent);
  background: color-mix(in srgb, var(--parent-bg, #fff) 98%, transparent);
  color: var(--muted);
  font: inherit;
  font-family: var(--ui);
  font-size: 0.94rem;
  font-weight: 640;
  min-height: 42px;
  padding: 8px 10px;
  text-align: center;
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease, transform 150ms ease;
}

.meta-item:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--stroke));
  color: var(--parent-text);
  transform: translateY(-1px);
}

.tooltip {
  position: absolute;
  z-index: 60;
  width: min(320px, calc(100% - 20px));
  border: 1px solid color-mix(in srgb, var(--stroke-strong) 90%, transparent);
  background: color-mix(in srgb, var(--parent-bg-solid) 92%, #fff 8%);
  color: var(--parent-text, CanvasText);
  padding: 11px 12px 10px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.18);
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
  transition: opacity 140ms ease, transform 140ms ease;
  border-radius: 5px;
}

.tooltip.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.tooltip::after {
  content: "";
  position: absolute;
  left: 18px;
  top: -6px;
  width: 10px;
  height: 10px;
  transform: rotate(45deg);
  background: inherit;
  border-left: 1px solid color-mix(in srgb, var(--stroke-strong) 90%, transparent);
  border-top: 1px solid color-mix(in srgb, var(--stroke-strong) 90%, transparent);
}

.tooltip.tooltip--above::after {
  top: auto;
  bottom: -6px;
  border-top: 0;
  border-left: 0;
  border-right: 1px solid color-mix(in srgb, var(--stroke-strong) 90%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--stroke-strong) 90%, transparent);
}

.tooltip__title {
  margin: 0 0 6px;
  font-size: 1rem;
  line-height: 1.25;
  font-family: var(--display);
}

.tooltip__list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 4px;
  font-size: 0.91rem;
  line-height: 1.37;
}

@media (max-width: 720px) {
  .app {
    padding: 4px 2px 2px;
  }

  .title {
    font-size: 1.28rem;
  }

  .tool-header {
    min-height: 48px;
  }

  .model {
    height: auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 9px;
    border: 0;
    background: transparent;
    padding: 0;
    overflow: visible;
  }

  .links {
    display: none;
  }

  .node {
    position: static;
    width: 100%;
    min-width: 0;
    height: auto;
    min-height: 58px;
    padding: 12px;
    font-size: 1.02rem;
  }

  .meta {
    position: static;
    grid-template-columns: 1fr;
    margin-top: 10px;
  }

  .tooltip {
    width: min(320px, calc(100% - 10px));
    z-index: 60;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}