.nu-unit-ratios {
  --ru-ink: #134e4a;
  --ru-main: #0f766e;
  --ru-soft: #ccfbf1;
  --ru-warm: #fff7ed;
}

.nu-unit-ratios .ru-svg,
.nu-unit-ratios .ru-table-wrap,
.nu-unit-ratios .ru-card-visual,
.nu-unit-ratios .ru-transform {
  width: 100%;
  max-width: 42rem;
  margin-inline: auto;
}

.nu-unit-ratios .ru-svg { display: block; height: auto; }
.nu-unit-ratios .ru-svg text { fill: #173f3c; font: 700 20px/1.2 system-ui, sans-serif; }
.nu-unit-ratios .ru-svg line { stroke: #99b9b5; stroke-width: 3; }
.nu-unit-ratios .ru-bar-part { stroke: #134e4a; stroke-width: 3; }
.nu-unit-ratios .ru-bar-0 { fill: #f6a5a5; }
.nu-unit-ratios .ru-bar-1 { fill: #93c5fd; }
.nu-unit-ratios .ru-road { stroke: #5b6b69; stroke-width: 18; stroke-linecap: round; }
.nu-unit-ratios .ru-road-dot { fill: #f97316; stroke: #7c2d12; stroke-width: 4; }

.nu-unit-ratios .ru-vtitle {
  margin: 0 0 .75rem;
  color: var(--ru-ink);
  font-weight: 800;
  text-align: center;
}

.nu-unit-ratios .ru-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 2px solid #5eead4;
  border-radius: 1rem;
  background: #fff;
}

.nu-unit-ratios .ru-table th,
.nu-unit-ratios .ru-table td { padding: .7rem .55rem; text-align: center; border: 0; }
.nu-unit-ratios .ru-table th { color: #fff; background: var(--ru-main); }
.nu-unit-ratios .ru-table tbody tr + tr td { border-top: 1px solid #99f6e4; }
.nu-unit-ratios .ru-table tbody tr:nth-child(even) { background: #f0fdfa; }

.nu-unit-ratios .ru-card-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr)); gap: .7rem; }
.nu-unit-ratios .ru-card {
  display: grid;
  gap: .4rem;
  min-height: 5.5rem;
  padding: .9rem;
  border: 2px solid #5eead4;
  border-radius: 1rem;
  background: #fff;
  text-align: center;
}
.nu-unit-ratios .ru-card strong { color: var(--ru-main); }

.nu-unit-ratios .ru-transform {
  padding: 1rem;
  border: 2px solid #5eead4;
  border-radius: 1.2rem;
  background: linear-gradient(145deg, #f0fdfa, #fff7ed);
}
.nu-unit-ratios .ru-frame { display: grid; place-items: center; min-height: 7rem; gap: .6rem; text-align: center; }
.nu-unit-ratios .ru-frame[hidden] { display: none; }
.nu-unit-ratios .ru-frame strong { color: var(--ru-main); font-size: 1rem; }
.nu-unit-ratios .ru-frame span { color: #163b38; font-size: clamp(1.1rem, 4vw, 1.45rem); font-weight: 800; }
.nu-unit-ratios .ru-quantity-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; width: 100%; }
.nu-unit-ratios .ru-quantity-group { display: grid; gap: .25rem; justify-items: center; min-width: 6rem; }
.nu-unit-ratios .ru-quantity-group small { color: #315d59; font-weight: 750; }
.nu-unit-ratios .ru-dots { display: flex; flex-wrap: wrap; justify-content: center; gap: .3rem; max-width: 10rem; }
.nu-unit-ratios .ru-dots i { width: 1.25rem; height: 1.25rem; border: 2px solid var(--ru-dot-border, #7c2d12); border-radius: .35rem; background: var(--ru-dot-fill, #fb923c); }
.nu-unit-ratios .ru-dots .ru-cluster { display: inline-flex; gap: .15rem; padding: .2rem; border: 2px dashed #52525b; border-radius: .5rem; }
.nu-unit-ratios .ru-dots.ru-tone-1 i { border-color: var(--ru-dot-border, #1e3a8a); background: var(--ru-dot-fill, #60a5fa); }
.nu-unit-ratios .ru-step-count { margin: .4rem 0; color: #476b67; text-align: center; font-size: .88rem; }
.nu-unit-ratios .ru-controls { display: flex; flex-wrap: wrap; justify-content: center; gap: .6rem; }
.nu-unit-ratios .ru-controls button { min-height: 2.75rem; padding: .55rem .9rem; border: 0; border-radius: 999px; background: var(--ru-main); color: white; font: inherit; font-weight: 800; cursor: pointer; }
.nu-unit-ratios .ru-controls button:disabled { opacity: .45; cursor: default; }
.nu-unit-ratios .ru-controls button:focus-visible { outline: 3px solid #fb923c; outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  .nu-unit-ratios *, .nu-unit-ratios *::before, .nu-unit-ratios *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

@media (max-width: 420px) {
  .nu-unit-ratios .ru-table { font-size: .88rem; }
  .nu-unit-ratios .ru-table th, .nu-unit-ratios .ru-table td { padding: .58rem .3rem; }
  .nu-unit-ratios .ru-transform { padding: .75rem; }
  .nu-unit-ratios .ru-svg text { font-size: 18px; }
}

/* Phone readability for SVG labels: short labels enlarged, long labels listed in HTML under the picture. */
.nu-unit-ratios .ru-phone-labels { display: none; }
@media (max-width: 520px) {
  .nu-unit-ratios .ru-svg text { font-size: 30px; }
  .nu-unit-ratios .ru-svg .ru-long { display: none; }
  .nu-unit-ratios .ru-phone-labels { display: block; list-style: none; margin: .4rem 0 0; padding: .5rem .75rem; background: #fffef9; border: 1px solid #cfe0dd; border-radius: 8px; font-size: .95rem; line-height: 1.5; }
  .nu-unit-ratios .ru-phone-labels li { margin: 0; }
}