/**
 * @fileoverview Универсальные компоненты: панели, инпуты, кнопки, чипсы, аккордеоны.
 * Строгая геометрия (sharp edges, border-radius: 0), палитра Slate Green.
 */

/* ==========================================================================
   1. Кнопки (.btn)
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 10px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: 0 !important;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none !important;
  user-select: none;
}

.btn:active {
  transform: scale(0.99);
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text-main);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-surface-hover);
}

.btn-sm {
  min-height: 38px;
  padding: 6px 14px;
  font-size: 0.85rem;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
}

.btn-remove {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
  font-size: 1.1rem;
}

.btn-remove:hover {
  background: var(--color-danger);
  color: #ffffff;
}

/* ==========================================================================
   2. Карточки и панели (.panel, .card)
   ========================================================================== */

.panel,
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  padding: 18px 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.panel-title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text-main);
}

.panel-num {
  color: var(--color-text-muted);
  font-weight: 500;
}

.panel-sub {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin: -10px 0 14px;
}

/* ==========================================================================
   3. Строки ввода и поля (.field-row, .field-input, .badge-letter)
   ========================================================================== */

.field-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 8px 12px;
  align-items: center;
  margin-bottom: 12px;
}

.field-row.field-row-stack {
  grid-template-columns: minmax(0, 1fr);
}

.field-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Квадратный бейдж буквы (L, B, H, M1, S1) */
.badge-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background-color: var(--color-badge-bg);
  color: var(--color-badge-text);
  border-radius: 0 !important;
  font-size: 0.72rem;
  font-weight: 800;
  flex-shrink: 0;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.field-input {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.field-input:focus-within {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

.field-input input,
.field-input select {
  flex: 1;
  min-width: 0;
  height: 42px;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 0.95rem;
  color: var(--color-text-main);
  outline: none;
  border-radius: 0 !important;
}

.field-unit {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

.field-hint {
  display: flex;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin: 6px 0 14px;
  line-height: 1.4;
}

.field-input input::placeholder {
  color: var(--color-text-light);
  font-size: 0.85rem;
}

.field-input select:has(option[value=""]:checked) {
  color: var(--color-text-light);
  font-size: 0.85rem;
}

.field-input.bad {
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
}

/* Традиционная вертикальная форма (.form-group) */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.form-group input,
.form-group select {
  height: 44px;
  padding: 8px 12px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-text-main);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 !important;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

/* ==========================================================================
   4. Чипсы выбора запаса бетона (.chips, .chip)
   ========================================================================== */

.chips {
  border: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
  padding: 0;
}

.chips-legend {
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 8px;
  display: block;
}

.chip {
  position: relative;
  cursor: pointer;
}

.chip input[type="radio"] {
  position: absolute;
  opacity: 0;
  inset: 0;
  cursor: pointer;
}

.chip > span {
  display: block;
  min-width: 52px;
  padding: 9px 12px;
  text-align: center;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  user-select: none;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: 0 !important;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

/* Выбранный чипс в серо-зелёном стиле */
.chip input:checked + span {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.chip-custom {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 42px;
  padding: 0 10px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 0 !important;
}

.chip-custom input {
  width: 4rem;
  border: 0;
  background: transparent;
  font: inherit;
  outline: none;
  border-radius: 0 !important;
}

/* ==========================================================================
   5. Аккордеоны модулей (.acc) и прямоугольные переключатели (.sw)
   ========================================================================== */

.acc-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.acc {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 0 !important;
}

.acc-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
  min-height: 54px;
  user-select: none;
}

.acc-summary::-webkit-details-marker {
  display: none;
}

.acc-summary::after {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: rotate(45deg);
  flex-shrink: 0;
  margin-left: auto;
  transition: transform var(--transition-fast);
}

.acc[open] > .acc-summary::after {
  transform: rotate(-135deg);
}

.acc-icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--color-border);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-text-muted);
  border-radius: 0 !important;
}

.acc-head {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.acc-title {
  font-weight: 700;
  font-size: 0.92rem;
}

.acc-status {
  font-size: 0.76rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.acc-status.on {
  color: var(--color-primary);
  font-weight: 600;
}

.acc-body {
  padding: 10px 14px 16px;
  border-top: 1px solid var(--color-border-subtle);
}

/* Строгий прямоугольный свитч */
.sw {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  position: relative;
  width: 44px;
  height: 24px;
  margin: 0;
  background: var(--color-border);
  cursor: pointer;
  border-radius: 0 !important;
  transition: background var(--transition-fast);
}

.sw::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: #ffffff;
  border-radius: 0 !important;
  transition: transform var(--transition-fast);
}

.sw:checked {
  background: var(--color-primary);
}

.sw:checked::after {
  transform: translateX(20px);
}

.acc-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  padding: 10px 0;
}

.acc-toggle-bare {
  justify-content: flex-end;
}

.acc-fields {
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
  transition: opacity 0.15s;
}

.acc-fields:disabled {
  opacity: 0.45;
}

.acc-fields:disabled .field-input {
  background: var(--color-surface-hover);
}

.acc-fields[hidden] {
  display: block !important;
}

/* ==========================================================================
   6. Тултипы и подсказки (.hint-tip)
   ========================================================================== */

.hint-tip {
  display: inline-block;
  position: relative;
  margin-left: 6px;
  vertical-align: middle;
}

.hint-tip summary {
  list-style: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 0 !important;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}

.hint-tip summary::-webkit-details-marker {
  display: none;
}

.hint-tip[open] summary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.hint-dropdown {
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  z-index: 50;
  width: 250px;
  padding: 10px 12px;
  background: #141816;
  color: #f4f5f2;
  font-size: 0.78rem;
  line-height: 1.4;
  font-weight: 400;
  border-radius: 0 !important;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

@media (max-width: 480px) {
  .hint-dropdown {
    left: -100px;
    width: 220px;
  }
}

/* ==========================================================================
   7. Сообщения и алерты (.alert-box)
   ========================================================================== */

.alert-box {
  padding: 12px 14px;
  border-radius: 0 !important;
  margin-bottom: 16px;
  font-size: 0.88rem;
}

.alert-danger {
  background-color: var(--color-danger-bg);
  border: 1px solid var(--color-danger-border);
  color: var(--color-danger);
}

.alert-warning {
  background-color: var(--color-warning-bg);
  border: 1px solid var(--color-warning-border);
  color: var(--color-warning);
}

/* ==========================================================================
   Главный экран: Каталог калькуляторов и поиск (Прямые углы + крупный шрифт)
   ========================================================================== */

.catalog-hero {
  margin-bottom: 24px;
}

.catalog-title {
  font-size: clamp(1.65rem, 5.2vw, 2.05rem);
  font-weight: 800;
  color: var(--color-text-main, #0f172a);
  letter-spacing: -0.025em;
  margin: 0 0 8px 0;
  line-height: 1.18;
}

.catalog-subtitle {
  font-size: 0.95rem;
  color: #475569;
  line-height: 1.48;
  margin: 0 0 18px 0;
  max-width: 680px;
}

/* Строка поиска калькулятора */
.catalog-search-wrap {
  position: relative;
  width: 100%;
}

.catalog-search-input {
  width: 100%;
  height: 48px;
  padding: 0 44px 0 16px;
  background: var(--color-surface, #ffffff);
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 0 !important; /* Строгие прямые углы */
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-text-main, #0f172a);
  outline: none;
  box-sizing: border-box;
  transition: border-color var(--transition-fast, 0.15s ease), box-shadow var(--transition-fast, 0.15s ease);
}

.catalog-search-input:focus {
  border-color: #2e4d41;
  box-shadow: 0 0 0 2px rgba(46, 77, 65, 0.15);
}

.catalog-search-input::placeholder {
  color: #94a3b8;
  font-size: 0.92rem;
}

.catalog-search-icon {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 19px;
  height: 19px;
  color: #94a3b8;
  pointer-events: none;
}

/* Категории (01 / Фундаменты) */
.catalog-section {
  margin-bottom: 24px;
}

.catalog-group-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-text-main, #0f172a);
  letter-spacing: -0.015em;
  margin: 0 0 12px 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.catalog-group-title .group-num {
  font-size: 1rem;
  color: #64748b;
  font-weight: 600;
}

/* Список прямоугольных карточек */
.catalog-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Карточка калькулятора */
.catalog-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--color-surface, #ffffff);
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 0 !important; /* Строгие прямые углы */
  padding: 16px 18px;
  text-decoration: none !important;
  color: inherit;
  transition: border-color var(--transition-fast, 0.15s ease), background-color var(--transition-fast, 0.15s ease);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.catalog-card:hover {
  border-color: #cbd5e1;
  background-color: #fafbf9;
}

.catalog-card:active {
  transform: scale(0.995);
}

.catalog-card-info {
  flex: 1;
  min-width: 0;
}

/* Крупный заголовок */
.catalog-card-title {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--color-text-main, #0f172a);
  margin: 0 0 5px 0;
  line-height: 1.25;
  letter-spacing: -0.015em;
}

/* Читаемый текст описания */
.catalog-card-desc {
  font-size: 0.88rem;
  color: #475569;
  line-height: 1.45;
  margin: 0;
}

/* Блок чертежа */
.catalog-card-art {
  width: 95px;
  height: 55px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blueprint-svg {
  width: 100%;
  height: auto;
  max-height: 55px;
  display: block;
}