.sb-app {
  padding: 1.25rem 1rem 1.5rem;
  display: grid;
  gap: 1.1rem;
}

.sb-app > * {
  min-width: 0;
}

.sb-app p {
  margin: 0;
}

/* Even split / By person */

.sb-modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  padding: 0.3rem;
  border-radius: var(--kis-radius-pill);
  background: var(--kis-surface);
  border: 1px solid var(--kis-border);
}

.sb-mode {
  border-color: transparent;
  background: transparent;
  padding: 0 0.75rem;
  font-weight: 700;
}

.sb-mode[aria-pressed="true"],
.sb-tip[aria-pressed="true"] {
  background: var(--kis-accent);
  color: var(--kis-accent-contrast);
  border-color: transparent;
}

#even-panel,
#person-panel {
  display: grid;
  gap: 0.9rem;
}

/* Fields */

.sb-field {
  display: grid;
  gap: 0.35rem;
  min-width: 0;
}

.sb-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--kis-text);
}

.sb-hint {
  font-size: 0.8rem;
  color: var(--kis-text-muted);
}

.sb-input {
  min-height: 44px;
  width: 100%;
  min-width: 0;
  padding: 0 0.75rem;
  border: 1px solid var(--kis-border);
  border-radius: var(--kis-radius);
  background: var(--kis-surface);
  color: var(--kis-text);
  font: inherit;
  font-size: 1rem; /* 16px keeps iPhone from zooming in on focus */
}

.sb-input[aria-invalid="true"] {
  border-color: var(--kis-accent);
  box-shadow: inset 0 0 0 1px var(--kis-accent);
}

/* A money box: currency symbol inside, on the left. */
.sb-money {
  position: relative;
  display: block;
  min-width: 0;
}

.sb-symbol {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--kis-text-muted);
  pointer-events: none;
  font-weight: 600;
}

.sb-money .sb-input {
  padding-left: 2.6rem;
  font-variant-numeric: tabular-nums;
}

.sb-input-big {
  min-height: 60px;
  font-size: 1.6rem;
  font-weight: 700;
}

.sb-money .sb-input-big {
  padding-left: 3rem;
}

.sb-money:has(.sb-input-big) .sb-symbol {
  font-size: 1.3rem;
}

/* Tip buttons */

.sb-tips {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.35rem;
}

.sb-tip {
  padding: 0 0.25rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: 0.95rem;
}

@media (max-width: 380px) {
  .sb-tips {
    grid-template-columns: repeat(4, 1fr);
  }
  .sb-tip[data-tip="custom"] {
    grid-column: 1 / -1;
  }
}

.sb-custom {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.4rem;
  font-size: 0.9rem;
  color: var(--kis-text-muted);
}

.sb-custom .sb-input {
  width: 6rem;
  text-align: center;
  font-weight: 700;
}

/* People stepper */

.sb-count {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.sb-stepper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--kis-text-muted);
  font-size: 0.9rem;
}

.sb-stepper .kis-btn {
  width: 48px;
  padding: 0;
  font-size: 1.3rem;
  font-weight: 700;
}

.sb-stepper input {
  width: 4rem;
  min-height: 48px;
  text-align: center;
  font: inherit;
  font-size: 1.3rem;
  font-weight: 700;
  border: 1px solid var(--kis-border);
  border-radius: var(--kis-radius);
  background: var(--kis-surface);
  color: var(--kis-text);
}

.kis-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.sb-check {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 44px;
  font-size: 0.9rem;
  cursor: pointer;
}

.sb-check input {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  accent-color: var(--kis-accent);
}

/* By person: one row per person */

.sb-people {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.sb-person {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 44px;
  gap: 0.4rem;
  align-items: center;
}

.sb-remove {
  padding: 0;
  font-size: 1.3rem;
  line-height: 1;
}

.sb-small {
  font-size: 0.85rem;
  padding: 0 1rem;
}

.sb-row2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

@media (max-width: 420px) {
  .sb-row2 {
    grid-template-columns: 1fr;
  }
}

/* Results */

.sb-results {
  padding: 1.1rem 1rem;
  border-radius: 16px;
  background: var(--kis-surface);
  border: 1px solid var(--kis-border);
  display: grid;
  gap: 0.9rem;
  text-align: center;
}

.sb-sums {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin: 0;
}

.sb-sums dt {
  font-size: 0.8rem;
  color: var(--kis-text-muted);
}

.sb-sums dd {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.sb-each {
  display: grid;
  gap: 0.15rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--kis-border);
}

.sb-each-label {
  font-size: 0.9rem;
  font-weight: 700;
}

.sb-each-amount {
  font-size: clamp(2.6rem, 13vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--kis-accent);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.sb-shares {
  list-style: none;
  margin: 0;
  padding: 0.9rem 0 0;
  border-top: 1px solid var(--kis-border);
  display: grid;
  gap: 0.6rem;
  text-align: left;
}

.sb-share {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  column-gap: 0.75rem;
  align-items: baseline;
}

.sb-share-name {
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sb-share-amount {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--kis-accent);
  font-variant-numeric: tabular-nums;
}

.sb-share-detail {
  grid-column: 1 / -1;
  font-size: 0.8rem;
  color: var(--kis-text-muted);
}

.sb-breakdown {
  font-size: 0.85rem;
  color: var(--kis-text-muted);
}

.sb-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}

/* More options */

.sb-more {
  border-top: 1px solid var(--kis-border);
  padding-top: 0.5rem;
}

.sb-more summary {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  cursor: pointer;
  color: var(--kis-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

.sb-more[open] {
  display: grid;
  gap: 1rem;
}