.c2e-calc-steps {
  background: var(--c2e-paper);
}

.c2e-calc-steps-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 80px;
  align-items: start;
}

.c2e-calc-steps-intro h2 {
  margin-bottom: 16px;
}

.c2e-calc-summary {
  display: grid;
  gap: 14px;
  margin-top: 36px;
}

.c2e-calc-summary div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 18px 22px;
  border-radius: var(--c2e-radius);
  background: var(--c2e-violet-50);
}

.c2e-calc-summary small {
  font-size: 0.95rem;
  color: var(--c2e-ink-soft);
}

.c2e-calc-summary strong {
  font-family: var(--c2e-font-head);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--c2e-violet-800);
}

.c2e-calc-timeline {
  position: relative;
  padding-left: 4px;
}

.c2e-calc-timeline::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 28px;
  bottom: 28px;
  width: 2px;
  background: linear-gradient(180deg, var(--c2e-violet-100), var(--c2e-lime-500));
}

.c2e-calc-timeline li {
  position: relative;
  display: flex;
  gap: 24px;
  align-items: center;
  padding: 14px 0;
}

.c2e-calc-dot {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--c2e-paper);
  border: 2px solid var(--c2e-violet-100);
  color: var(--c2e-violet-700);
  flex-shrink: 0;
}

.c2e-calc-timeline li > div {
  flex: 1;
  padding: 18px 24px;
  border-radius: var(--c2e-radius);
  border: 1px solid var(--c2e-line);
  transition: border-color 0.25s, box-shadow 0.25s;
}

.c2e-calc-timeline li:hover > div {
  border-color: transparent;
  box-shadow: var(--c2e-shadow);
}

.c2e-calc-timeline h4 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--c2e-ink-soft);
  margin-bottom: 2px;
}

.c2e-calc-formula {
  font-family: var(--c2e-font-head);
  font-size: 1.2rem;
  color: var(--c2e-ink);
}

.c2e-calc-formula b {
  color: var(--c2e-violet-700);
  font-weight: 600;
}

.c2e-calc-final .c2e-calc-dot {
  background: var(--c2e-lime-500);
  border-color: var(--c2e-lime-500);
  color: var(--c2e-violet-900);
}

.c2e-calc-final > div {
  background: var(--c2e-violet-800);
  border-color: var(--c2e-violet-800) !important;
}

.c2e-calc-final h4 {
  color: rgba(255, 255, 255, 0.7);
}

.c2e-calc-final .c2e-calc-formula {
  color: #fff;
}

.c2e-calc-final .c2e-calc-formula b {
  color: var(--c2e-lime-500);
}

.c2e-calc-tool {
  overflow: hidden;
  background:
    radial-gradient(circle at 100% 0%, rgba(213, 252, 1, 0.14), transparent 40%),
    linear-gradient(180deg, var(--c2e-violet-50) 0%, var(--c2e-cream) 100%);
}

.c2e-calc-ring {
  width: 520px;
  height: 520px;
  left: -240px;
  bottom: -200px;
}

.c2e-calc-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  max-width: 1000px;
  margin: 0 auto;
  border-radius: var(--c2e-radius-lg);
  background: var(--c2e-paper);
  box-shadow: var(--c2e-shadow-lg);
  overflow: hidden;
}

.c2e-estimator {
  padding: 48px 44px;
  display: grid;
  gap: 40px;
}

.c2e-calc-field-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 18px;
}

.c2e-calc-field-head label {
  font-family: var(--c2e-font-head);
  font-weight: 500;
  color: var(--c2e-ink-soft);
}

.c2e-calc-field-head span {
  color: var(--c2e-ink-soft);
}

.c2e-calc-field-head b {
  font-family: var(--c2e-font-head);
  font-size: 1.7rem;
  font-weight: 600;
  color: var(--c2e-violet-800);
}

.c2e-estimator input[type="range"] {
  --c2e-fill: 50%;
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--c2e-violet-500) 0%, var(--c2e-violet-500) var(--c2e-fill), var(--c2e-violet-100) var(--c2e-fill), var(--c2e-violet-100) 100%);
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  cursor: pointer;
}

.c2e-estimator input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--c2e-lime-500);
  border: 4px solid #fff;
  box-shadow: 0 4px 12px rgba(29, 17, 71, 0.25);
  transition: transform 0.2s;
}

.c2e-estimator input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.12);
}

.c2e-estimator input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--c2e-lime-500);
  border: 4px solid #fff;
  box-shadow: 0 4px 12px rgba(29, 17, 71, 0.25);
}

.c2e-estimator input[type="range"]:focus-visible {
  outline: 2px solid var(--c2e-lime-500);
  outline-offset: 6px;
}

.c2e-calc-range-ends {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--c2e-ink-muted);
}

.c2e-calc-result {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
  padding: 48px 40px;
  background: var(--c2e-violet-900);
  color: #fff;
}

.c2e-calc-result-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.72);
}

.c2e-calc-result-row b {
  color: #fff;
  font-weight: 500;
  white-space: nowrap;
}

.c2e-calc-result-total span {
  display: block;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.72);
}

.c2e-calc-result-total strong {
  display: block;
  font-family: var(--c2e-font-head);
  font-size: clamp(1.8rem, 3vw, 2.3rem);
  font-weight: 600;
  color: var(--c2e-lime-500);
  line-height: 1.3;
}

.c2e-calc-result-total strong span {
  display: inline;
  font-size: inherit;
  color: inherit;
}

.c2e-calc-result p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
}

.c2e-calc-notes {
  background: var(--c2e-cream);
}

.c2e-calc-notes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.c2e-calc-note {
  padding: 32px 28px;
  border-top: 3px solid var(--c2e-lime-500);
  background: var(--c2e-paper);
  border-radius: 0 0 var(--c2e-radius) var(--c2e-radius);
}

.c2e-calc-note i {
  font-size: 1.4rem;
  color: var(--c2e-violet-700);
  margin-bottom: 16px;
}

.c2e-calc-note h4 {
  margin-bottom: 8px;
}

.c2e-calc-note p {
  font-size: 0.95rem;
}

@media (max-width: 960px) {
  .c2e-calc-steps-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .c2e-calc-panel {
    grid-template-columns: 1fr;
  }

  .c2e-calc-notes-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .c2e-estimator,
  .c2e-calc-result {
    padding: 32px 22px;
  }

  .c2e-calc-timeline li {
    gap: 14px;
  }

  .c2e-calc-timeline li > div {
    padding: 14px 16px;
  }

  .c2e-calc-formula {
    font-size: 1.05rem;
  }
}