.mob-calculator {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: 0 20px 50px rgba(15, 23, 42, .12);
  margin: 30px 0 40px;
  overflow: hidden;
}

.mob-calculator-loading {
  padding: 22px 24px;
  color: var(--muted);
  background: var(--surface);
  font-size: 14px;
  font-weight: 850;
}

.mob-calc-shell { display: grid; gap: 0; }
.mob-calc-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 24px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--brand) 7%, var(--surface)), var(--surface) 58%),
    var(--surface);
  border-bottom: 1px solid var(--line);
}
.mob-calc-head-text { min-width: 0; }
.mob-calc-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border: 1px solid color-mix(in srgb, var(--brand) 26%, var(--line));
  border-radius: 8px;
  padding: 0 10px;
  color: var(--brand);
  background: color-mix(in srgb, var(--brand) 8%, var(--surface));
  font-size: 11px;
  font-weight: 950;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.mob-calc-title { margin: 10px 0 0; color: var(--ink); font-size: 24px; line-height: 1.25; font-weight: 950; letter-spacing: 0; }
.mob-calc-note { margin: 8px 0 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.mob-calc-mini-result {
  flex: 0 0 auto;
  border: 1px solid color-mix(in srgb, var(--brand) 22%, var(--line));
  border-radius: 12px;
  padding: 11px 14px;
  color: var(--brand);
  background: color-mix(in srgb, var(--brand) 8%, var(--surface));
  box-shadow: 0 8px 18px rgba(15, 23, 42, .06);
  font-size: 13px;
  font-weight: 950;
  white-space: nowrap;
}
.mob-calc-body { padding: 24px; display: grid; gap: 22px; }
.mob-calc-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
.mob-calc-field { display: grid; gap: 8px; }
.mob-calc-field label { color: var(--ink); font-size: 13px; font-weight: 900; line-height: 1.25; }
.mob-calc-control {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  overflow: hidden;
  transition: border-color .16s ease, box-shadow .16s ease, background-color .16s ease;
}
.mob-calc-control:focus-within {
  border-color: var(--brand);
  background: var(--surface);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 14%, transparent), 0 10px 24px rgba(15, 23, 42, .08);
}
.mob-calc-control input,
.mob-calc-control select {
  width: 100%;
  min-height: 48px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 16px;
  font-weight: 800;
  padding: 10px 13px;
}
.mob-calc-control input[type="number"] { appearance: textfield; -moz-appearance: textfield; }
.mob-calc-control input[type="number"]::-webkit-inner-spin-button,
.mob-calc-control input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.mob-calc-control select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 20px, calc(100% - 12px) 20px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 34px;
}
.mob-calc-unit {
  align-self: stretch;
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  flex: 0 0 auto;
  min-width: 62px;
  padding: 0 12px;
  color: var(--muted);
  background: var(--surface-2);
  font-size: 13px;
  font-weight: 900;
  text-align: right;
  border-left: 1px solid var(--line);
}
.mob-calc-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.mob-calc-btn {
  min-height: 44px;
  border: 1px solid var(--brand);
  border-radius: 12px;
  padding: 0 16px;
  font: inherit;
  font-size: 14px;
  font-weight: 900;
  cursor: pointer;
  transition: transform .14s ease, box-shadow .14s ease, background-color .14s ease;
}
.mob-calc-btn:hover { transform: translateY(-1px); }
.mob-calc-btn:focus-visible { outline: 3px solid color-mix(in srgb, var(--brand) 24%, transparent); outline-offset: 2px; }
.mob-calc-btn-primary { background: var(--brand); color: #fff; box-shadow: 0 10px 20px color-mix(in srgb, var(--brand) 24%, transparent); }
.mob-calc-btn-secondary { background: var(--surface); color: var(--brand); }
.mob-calc-btn-share { background: color-mix(in srgb, var(--brand) 10%, var(--surface)); color: var(--brand); }
.mob-calc-error { display: none; border: 1px solid #fecaca; background: #fff1f2; color: #9f1239; border-radius: 10px; padding: 12px 14px; font-size: 14px; font-weight: 750; }
:root[data-theme="dark"] .mob-calc-error { background: #451a24; border-color: #7f1d1d; color: #fecdd3; }
.mob-calc-error.is-visible { display: block; }
.mob-calc-results { display: grid; gap: 14px; border-top: 1px solid var(--line); padding-top: 20px; }
.mob-calc-result-grid { display: grid; grid-template-columns: 1fr; gap: 10px; }
.mob-calc-result-card { border: 1px solid var(--line); border-radius: 12px; background: var(--surface-2); padding: 15px; }
.mob-calc-result-card.is-primary {
  border-color: color-mix(in srgb, var(--brand) 38%, var(--line));
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--brand) 12%, var(--surface)), var(--surface)),
    var(--surface);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--brand) 8%, transparent), 0 12px 24px rgba(15, 23, 42, .08);
}
.mob-calc-result-label { display: block; color: var(--muted); font-size: 12px; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; }
.mob-calc-result-value { display: block; margin-top: 6px; color: var(--ink); font-size: 24px; line-height: 1.15; font-weight: 950; }
.mob-calc-result-card.is-primary .mob-calc-result-value { color: var(--brand); font-size: 34px; }
.mob-calc-result-unit { color: var(--muted); font-size: 13px; font-weight: 850; }
.mob-calc-assumptions,
.mob-calc-steps {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  padding: 14px 16px;
}
.mob-calc-assumptions { background: color-mix(in srgb, var(--surface-2) 55%, var(--surface)); }
.mob-calc-assumptions strong,
.mob-calc-steps strong { display: block; margin-bottom: 8px; color: var(--ink); font-size: 14px; font-weight: 900; }
.mob-calc-assumptions ul,
.mob-calc-steps ol { margin: 0; padding-left: 20px; color: var(--muted); font-size: 14px; line-height: 1.6; }
.mob-calc-cta {
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--line));
  border-left-width: 4px;
  background: color-mix(in srgb, var(--accent) 7%, var(--surface));
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 850;
}

@media (min-width: 720px) {
  .mob-calc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mob-calc-result-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mob-calc-result-card.is-primary { grid-column: span 2; }
  .mob-calc-actions { align-items: center; }
}

@media (max-width: 560px) {
  .mob-calculator { border-radius: 12px; margin: 24px -2px 34px; }
  .mob-calc-head { display: grid; padding: 18px; }
  .mob-calc-mini-result { justify-self: start; }
  .mob-calc-body { padding: 18px; gap: 18px; }
  .mob-calc-actions { display: grid; grid-template-columns: 1fr; }
  .mob-calc-btn { width: 100%; }
  .mob-calc-result-card.is-primary .mob-calc-result-value { font-size: 28px; }
}