/* Bullion value calculator */
.calc-fab {
  position: fixed;
  left: max(12px, env(safe-area-inset-left));
  bottom: max(14px, env(safe-area-inset-bottom));
  z-index: 45;
  width: 52px;
  height: 52px;
  border: 1px solid var(--ab-border, rgba(201, 154, 50, 0.35));
  border-radius: 50%;
  background: linear-gradient(145deg, #fff8ec 0%, #f3e2c0 100%);
  color: var(--ab-accent, #6e1f28);
  box-shadow: 0 12px 28px rgba(40, 20, 10, 0.18);
  cursor: pointer;
  display: grid;
  place-items: center;
}

html[data-theme="dark"] .calc-fab {
  background: linear-gradient(145deg, #2a1c14 0%, #1a120e 100%);
  color: var(--ab-gold-light, #f4df9b);
}

.calc-fab svg {
  width: 24px;
  height: 24px;
}

.calc-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(10, 8, 6, 0.48);
  backdrop-filter: blur(4px);
}

.calc-sheet {
  position: fixed;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  z-index: 61;
  width: min(100%, 480px);
  max-height: min(92dvh, 760px);
  overflow: auto;
  border-radius: 22px 22px 0 0;
  background: linear-gradient(180deg, #fffdf8 0%, #f7f1e6 100%);
  color: #16120e;
  box-shadow: 0 -18px 50px rgba(0, 0, 0, 0.28);
  padding: 14px 16px calc(18px + env(safe-area-inset-bottom));
}

html[data-theme="dark"] .calc-sheet {
  background: linear-gradient(180deg, #1c1412 0%, #120e0c 100%);
  color: #f5efe6;
}

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

.calc-head h2 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.2;
}

.calc-sub {
  margin: 4px 0 0;
  font-size: 0.82rem;
  color: #6e645c;
  font-weight: 600;
}

html[data-theme="dark"] .calc-sub {
  color: #b0a498;
}

.calc-close {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.06);
  color: inherit;
  font-size: 1.2rem;
  cursor: pointer;
  flex-shrink: 0;
}

html[data-theme="dark"] .calc-close {
  background: rgba(255, 255, 255, 0.08);
}

.calc-live {
  margin: 0 0 12px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(201, 154, 50, 0.12);
  border: 1px solid rgba(201, 154, 50, 0.28);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: center;
}

.calc-grid {
  display: grid;
  gap: 10px;
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.calc-field span {
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #6e645c;
}

html[data-theme="dark"] .calc-field span {
  color: #b0a498;
}

.calc-field select,
.calc-field input {
  width: 100%;
  border: 1px solid rgba(201, 154, 50, 0.35);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  font-weight: 700;
  font-size: 1.05rem;
  background: #fff;
  color: inherit;
}

html[data-theme="dark"] .calc-field select,
html[data-theme="dark"] .calc-field input {
  background: #241816;
  border-color: rgba(212, 174, 74, 0.3);
  color: #f5efe6;
}

.calc-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.calc-result {
  margin-top: 14px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(201, 154, 50, 0.25);
}

html[data-theme="dark"] .calc-result {
  background: rgba(255, 255, 255, 0.04);
}

.calc-result-label {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 700;
  color: #6e645c;
}

.calc-result-value {
  margin: 4px 0 0;
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.calc-payable {
  margin: 8px 0 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: #6e645c;
}

.calc-payable strong {
  color: inherit;
  font-size: 1.05rem;
}

html[data-theme="dark"] .calc-payable,
html[data-theme="dark"] .calc-result-label {
  color: #b0a498;
}

.calc-break-toggle {
  margin-top: 8px;
  border: 0;
  background: none;
  color: var(--ab-accent, #8d641b);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 800;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.calc-breakdown {
  margin-top: 10px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(201, 154, 50, 0.28);
  background: rgba(255, 255, 255, 0.55);
  font-size: 0.86rem;
}

html[data-theme="dark"] .calc-breakdown {
  background: rgba(0, 0, 0, 0.2);
}

.calc-breakdown .row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 8px;
  font-weight: 600;
}

.calc-breakdown .row:last-child {
  margin-bottom: 0;
}

.calc-breakdown hr {
  border: 0;
  border-top: 1px solid rgba(201, 154, 50, 0.28);
  margin: 10px 0;
}

.calc-breakdown .total {
  font-weight: 800;
  font-size: 0.95rem;
}

.calc-banner {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  background: linear-gradient(90deg, #e8c56a, #c99a32);
  color: #1a1208;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 800;
}

body.calc-open {
  overflow: hidden;
}

@media (min-width: 900px) {
  .calc-sheet {
    border-radius: 22px;
    bottom: 24px;
    max-height: min(86vh, 720px);
  }
}