:root {
  --bg: #f3f5f1;
  --surface: #ffffff;
  --surface-soft: #f8faf7;
  --ink: #18211f;
  --muted: #66736f;
  --line: #dde5df;
  --accent: #b65036;
  --accent-dark: #81301f;
  --sage: #4f6f60;
  --sage-soft: #e5eee8;
  --blue: #456f9a;
  --blue-soft: #e1edf6;
  --shadow: 0 18px 44px rgba(35, 45, 41, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.65), rgba(243, 245, 241, 0.94)),
    var(--bg);
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  padding: 24px;
}

.workspace {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.topbar,
.mode-panel,
.input-panel,
.result-panel,
.prices-panel,
.options-panel,
.client-price-panel,
.admin-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 18px;
  border-radius: 8px;
}

.brand {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 14px;
}

.brand-mark {
  width: 124px;
  height: 62px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  object-fit: contain;
  padding: 8px;
  flex: 0 0 auto;
}

.brand p,
.section-title span,
.total-card span,
.breakdown-row span {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

.brand h1,
.section-title h2 {
  margin: 3px 0 0;
  letter-spacing: 0;
}

.brand h1 {
  font-size: 22px;
  line-height: 1.15;
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(360px, 0.9fr) minmax(0, 1.1fr);
  gap: 18px;
}

.input-panel,
.result-panel,
.mode-panel,
.prices-panel,
.options-panel,
.client-price-panel,
.admin-panel {
  border-radius: 8px;
  padding: 20px;
}

.mode-panel {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.mode-switch {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 6px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.mode-switch__button {
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--muted);
  background: transparent;
  font-weight: 800;
  cursor: pointer;
}

.mode-switch__button:hover,
.mode-switch__button.is-active {
  border-color: var(--accent);
  color: var(--ink);
  background: #fff;
}

.admin-toggle,
.secondary-button {
  min-height: 42px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  font-weight: 800;
  cursor: pointer;
}

.admin-toggle:hover,
.admin-toggle.is-active,
.secondary-button:hover {
  border-color: var(--accent);
  background: #fff4ee;
}

.admin-toggle:disabled,
.secondary-button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.admin-panel {
  background: #f8faf7;
}

.admin-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 18px;
}

.admin-modal[hidden] {
  display: none;
}

.admin-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(24, 33, 31, 0.36);
}

.admin-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(420px, 100%);
  display: grid;
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 22px 60px rgba(24, 33, 31, 0.2);
}

.admin-modal__dialog h2,
.admin-modal__dialog p {
  margin: 0;
}

.admin-modal__dialog h2 {
  font-size: 20px;
}

.admin-modal__dialog p {
  margin-top: 5px;
  color: var(--muted);
  line-height: 1.45;
}

.admin-modal__error {
  color: var(--accent-dark) !important;
  font-weight: 800;
}

.admin-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
}

.admin-grid--wide {
  margin-top: 14px;
}

.admin-actions,
.deal-save-panel {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}

.save-status {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
}

.admin-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.admin-card h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.admin-fields {
  display: grid;
  gap: 10px;
}

.admin-fields--tiers {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.history-list {
  display: grid;
  gap: 10px;
  max-height: 280px;
  overflow: auto;
}

.history-item {
  display: grid;
  gap: 6px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.history-item strong {
  font-size: 13px;
}

.history-item small {
  color: var(--muted);
  line-height: 1.45;
}

.mini-field {
  display: grid;
  gap: 6px;
}

.mini-field span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.mini-field input,
.mini-field select {
  width: 100%;
  min-height: 38px;
  padding: 8px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  outline: none;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.section-title span {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--sage-soft);
  color: var(--sage);
  display: grid;
  place-items: center;
}

.section-title h2 {
  font-size: 18px;
}

.fields {
  display: grid;
  gap: 12px;
}

.set-builder {
  display: grid;
  gap: 12px;
}

.set-builder[hidden] {
  display: none;
}

.set-builder__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.set-builder__header--spaced {
  margin-top: 10px;
}

.set-builder__header h3 {
  margin: 0;
  font-size: 16px;
}

.set-list {
  display: grid;
  gap: 10px;
}

.set-row {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) minmax(120px, 0.5fr) auto;
  gap: 10px;
  align-items: end;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.set-row--option {
  grid-template-columns: minmax(160px, 1fr) minmax(120px, 0.6fr) minmax(96px, 0.4fr) auto;
}

.set-row input,
.set-row select {
  width: 100%;
  min-height: 38px;
  padding: 8px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

.premium-select {
  position: relative;
  margin-bottom: 18px;
}

.premium-select__label {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.premium-select__button {
  width: 100%;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(255, 244, 238, 0.72), rgba(255, 255, 255, 0.98)),
    #fff;
  cursor: pointer;
  text-align: left;
  outline: none;
}

.premium-select__button:hover,
.premium-select.is-open .premium-select__button {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(182, 80, 54, 0.12);
}

.premium-select__copy {
  min-width: 0;
  display: grid;
  gap: 5px;
}

.premium-select__copy strong {
  font-size: 20px;
  line-height: 1.15;
}

.premium-select__copy small,
.premium-select__option small {
  color: var(--muted);
  line-height: 1.35;
}

.premium-select__chevron {
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--accent-dark);
  border-bottom: 2px solid var(--accent-dark);
  transform: rotate(45deg);
  transition: transform 0.16s ease;
  flex: 0 0 auto;
}

.premium-select.is-open .premium-select__chevron {
  transform: rotate(225deg);
}

.premium-select__menu {
  position: absolute;
  z-index: 20;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  display: grid;
  gap: 6px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 44px rgba(35, 45, 41, 0.16);
}

.premium-select__menu[hidden] {
  display: none;
}

.premium-select__option {
  width: 100%;
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--ink);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.premium-select__option:hover,
.premium-select__option:focus {
  background: var(--surface-soft);
  outline: none;
}

.premium-select__option.is-selected {
  border-color: #efd0c4;
  background: #fff4ee;
}

.premium-select__option strong {
  display: block;
  margin-bottom: 4px;
}

.field {
  display: grid;
  gap: 7px;
}

.field span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.field input,
.field select {
  width: 100%;
  min-height: 44px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  outline: none;
}

.field input:focus,
.field select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(69, 111, 154, 0.14);
}

.sticks-row,
.wick-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.wick-row {
  padding: 10px;
}

.sticks-row[hidden],
.wick-row[hidden] {
  display: none;
}

.base-block {
  align-items: stretch;
}

.breakdown-list {
  display: grid;
  gap: 9px;
}

.breakdown-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.breakdown-row strong {
  white-space: nowrap;
}

.total-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 16px;
  padding: 16px;
  border-radius: 8px;
  background: #243631;
  color: #fff;
}

.total-card span {
  color: rgba(255, 255, 255, 0.7);
}

.total-card strong {
  display: block;
  margin-top: 5px;
  font-size: 30px;
}

.total-card small {
  color: rgba(255, 255, 255, 0.72);
  text-align: right;
  line-height: 1.4;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

th,
td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--line);
  text-align: right;
  white-space: nowrap;
}

th:first-child,
td:first-child {
  text-align: left;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

tbody tr:hover {
  background: var(--surface-soft);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.panel-header .section-title {
  margin-bottom: 0;
}

.panel-note {
  margin: -4px 0 14px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.options-list {
  display: grid;
  gap: 10px;
}

.option-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 14px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.option-card__copy {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(150px, 0.55fr);
  gap: 10px;
}

.option-card__copy strong {
  font-size: 16px;
}

.option-card__copy small {
  color: var(--muted);
  line-height: 1.4;
}

.option-card__name-input,
.option-card__copy input {
  width: 100%;
  min-height: 38px;
  padding: 8px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.option-card__price {
  display: grid;
  gap: 4px;
  text-align: right;
  white-space: nowrap;
}

.option-card__price span,
.options-summary span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.option-card__price strong {
  font-size: 18px;
}

.option-card__price small {
  color: var(--muted);
  font-size: 12px;
}

.icon-button {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #fff;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.icon-button:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: #fff4ee;
}

.empty-options {
  padding: 16px;
  border: 1px dashed #cdd8d1;
  border-radius: 8px;
  color: var(--muted);
  background: var(--surface-soft);
  line-height: 1.45;
}

.options-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 8px;
  background: #243631;
  color: #fff;
}

.options-summary span {
  color: rgba(255, 255, 255, 0.7);
}

.options-summary strong {
  font-size: 24px;
}

.client-price-panel {
  border-color: #d2ded6;
  background: linear-gradient(180deg, #ffffff 0%, #f7faf6 100%);
}

.client-quantity-field {
  display: grid;
  gap: 7px;
  min-width: 220px;
}

.client-quantity-field span,
.client-offer span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.client-quantity-field input {
  width: 100%;
  min-height: 42px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  outline: none;
}

.client-quantity-field input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(69, 111, 154, 0.14);
}

.client-offer {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.client-offer > div {
  display: grid;
  gap: 7px;
  align-content: start;
  min-height: 88px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.client-offer strong {
  font-size: 18px;
  line-height: 1.25;
}

.client-offer__total {
  background: #243631 !important;
  color: #fff;
}

.client-offer__total span {
  color: rgba(255, 255, 255, 0.72);
}

.client-offer__total strong {
  color: #fff;
  font-size: 22px;
}

.deal-save-panel {
  justify-content: flex-end;
}

@media (max-width: 900px) {
  .app-shell {
    padding: 14px;
  }

  .topbar,
  .mode-switch,
  .calculator-grid {
    grid-template-columns: 1fr;
  }

  .admin-grid,
  .admin-fields--tiers,
  .set-row,
  .set-row--option,
  .option-card,
  .option-card__copy,
  .client-offer {
    grid-template-columns: 1fr;
  }

  .panel-header {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-modal__actions {
    display: grid;
  }

  .option-card__price {
    text-align: left;
  }

  .panel-header,
  .options-summary {
    align-items: stretch;
    display: grid;
  }

  .sticks-row {
    grid-template-columns: 1fr;
  }

  .breakdown-list {
    padding-right: 0;
  }

  .total-card {
    display: grid;
  }

  .total-card small {
    text-align: left;
  }
}