/* ============================================
   CALCULATOR BLOCKS - Compact, Pixel-Perfect
   ============================================ */

/* ========================================
   WRAPPER - Contains entire calculator
   ======================================== */
.calc-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin: 0 var(--space-3);
}

/* ========================================
   BLOCK 1: CALCULATOR INPUT BLOCK
   Base styles shared by ALL calculators
   ======================================== */
.calc-input-block {
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-right: 4px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
  min-height: 150px;
}

/* ------------------------------------------
   LAYOUT MODIFIER: INLINE
   3-column: Info | Divider | Controls
   Used by: desk-height, chair-height, monitor-height, keyboard-tray, monitor-distance
   ------------------------------------------ */
.calc-input-block--inline {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-4);
  align-items: center;
}

/* REMOVED: --stacked modifier - all calculators now use inline layout */

/* Left: Info Section */
.calc-input-block__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.calc-input-block__info-title {
  font-size: var(--font-xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
  margin: 0;
  line-height: 1.2;
}

.calc-input-block__info-description {
  font-size: var(--font-base);
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* Vertical Divider */
.calc-input-block__divider {
  width: 2px;
  height: 100%;
  min-height: 60px;
  background: var(--color-border);
}

/* Right: Controls Section */
.calc-input-block__controls {
  display: flex;
  align-items: center;
}

/* Inline row: inputs + buttons */
.calc-input-block__inline {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* Input fields - Base styles */
.calc-input-block__input {
  padding: var(--space-3) var(--space-3);
  background: var(--color-background);
  color: var(--color-text);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-base);
  min-height: 48px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.calc-input-block__input:hover {
  border-color: var(--color-gray-400);
}

/* ------------------------------------------
   INPUT SIZE MODIFIERS
   Explicit control over input widths
   ------------------------------------------ */
.calc-input-block__input--small {
  width: 70px;
  text-align: center;
}

.calc-input-block__input--medium {
  width: 120px;
  text-align: center;
}

.calc-input-block__input--full {
  width: 100%;
  text-align: left;
}

.calc-input-block__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb, 102, 126, 234), 0.15);
}

.calc-input-block__input::placeholder {
  color: var(--color-text-light);
  font-size: var(--font-xs);
}

/* Remove number spinners */
.calc-input-block__input::-webkit-outer-spin-button,
.calc-input-block__input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.calc-input-block__input[type="number"] {
  -moz-appearance: textfield;
}

/* Select dropdown */
.calc-input-block__select {
  padding: var(--space-3) var(--space-3);
  background: var(--color-background);
  color: var(--color-text);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-base);
  min-height: 48px;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.calc-input-block__select:hover {
  border-color: var(--color-gray-400);
}

.calc-input-block__select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb, 102, 126, 234), 0.15);
}

/* Calculator buttons - Prominent styling */
.calc-input-block__btn {
  padding: var(--space-3) var(--space-5);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-base);
  font-weight: var(--font-semibold);
  min-height: 48px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}

.calc-input-block__btn:active {
  transform: translateY(1px);
}

.calc-input-block__btn--primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.calc-input-block__btn--primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.calc-input-block__btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.calc-input-block__btn--secondary:hover {
  background: var(--color-background);
}

/* Responsive */
@media (max-width: 768px) {
  .calc-wrapper {
    margin: 0;
  }

  .calc-input-block {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .calc-input-block__divider {
    width: 100%;
    height: 1px;
    min-height: auto;
  }

  .calc-input-block__inline {
    justify-content: center;
  }
}

/* ========================================
   BLOCK 2: RESULTS BLOCK
   ======================================== */
.calc-results-block {
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.calc-results-block__title {
  font-size: var(--font-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0 0 var(--space-2) 0;
}

.calc-results-block__list {
  display: flex;
  flex-direction: column;
}

.calc-result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
}

.calc-result-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.calc-result-item:first-child {
  padding-top: 0;
}

.calc-result-item__label {
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
}

.calc-result-item__value {
  font-size: var(--font-sm);
  color: var(--color-text);
  font-weight: var(--font-semibold);
}

/* ========================================
   BLOCK 3: GUIDELINES/TIPS
   ======================================== */
.calc-guidelines-block {
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.calc-guidelines-block__title {
  font-size: var(--font-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0 0 var(--space-2) 0;
}

.calc-guidelines-block__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-2);
}

.calc-guideline-item {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--color-background);
  border-left: 2px solid var(--color-success);
  border-radius: var(--radius-sm);
}

.calc-guideline-item__icon {
  flex-shrink: 0;
  color: var(--color-success);
  font-size: var(--font-sm);
}

.calc-guideline-item__content {
  flex: 1;
  min-width: 0;
}

.calc-guideline-item__text {
  font-size: var(--font-xs);
  color: var(--color-text-secondary);
  line-height: 1.4;
}

/* ========================================
   BLOCK 4: STEPS BLOCK
   ======================================== */
.calc-steps-block {
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.calc-steps-block__title {
  font-size: var(--font-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0 0 var(--space-3) 0;
}

.calc-steps-block__list {
  counter-reset: step-counter;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.calc-step-item {
  counter-increment: step-counter;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2);
  background: var(--color-background);
  border-radius: var(--radius-sm);
}

.calc-step-item__number {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-bold);
  font-size: var(--font-xs);
}

.calc-step-item__content {
  flex: 1;
  min-width: 0;
  padding-top: 2px;
}

.calc-step-item__title {
  font-size: var(--font-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.calc-step-item__text {
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
}

/* ========================================
   BLOCK 5: CONTENT BLOCK
   ======================================== */
.calc-content-block {
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.calc-content-block__title {
  font-size: var(--font-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0 0 var(--space-2) 0;
}

.calc-content-block__intro {
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0 0 var(--space-3) 0;
}

.calc-content-block__section {
  margin-bottom: var(--space-3);
}

.calc-content-block__section:last-child {
  margin-bottom: 0;
}

.calc-content-block__subtitle {
  font-size: var(--font-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0 0 var(--space-2) 0;
}

.calc-content-block__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.calc-content-block__list li {
  position: relative;
  padding-left: var(--space-4);
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
  line-height: 1.4;
}

.calc-content-block__list li::before {
  content: '•';
  position: absolute;
  left: var(--space-1);
  color: var(--color-primary);
}

/* ========================================
   BLOCK 6: TABLE BLOCK
   ======================================== */
.calc-table-block {
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.calc-table-block__title {
  font-size: var(--font-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0 0 var(--space-1) 0;
}

.calc-table-block__description {
  font-size: var(--font-xs);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-2) 0;
}

.calc-table-block__table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-sm);
}

.calc-table-block__table th {
  background: var(--color-background);
  padding: var(--space-2);
  text-align: left;
  font-weight: var(--font-semibold);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.calc-table-block__table td {
  padding: var(--space-2);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.calc-table-block__table tr:last-child td {
  border-bottom: none;
}

.calc-table-block__table tr:nth-child(even) {
  background: var(--color-background);
}

.calc-table-block__footnote {
  font-size: var(--font-xs);
  color: var(--color-text-light);
  margin: var(--space-2) 0 0 0;
}

/* ========================================
   PAGE LAYOUT
   ======================================== */
.calc-page {
  display: flex;
  gap: var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-4);
}

.calc-page__main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.calc-page__sidebar {
  width: 300px;
  flex-shrink: 0;
}

.calc-page__sidebar-inner {
  position: sticky;
  top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (max-width: 968px) {
  .calc-page {
    flex-direction: column;
  }

  .calc-page__sidebar {
    width: 100%;
  }

  .calc-page__sidebar-inner {
    position: static;
  }
}

/* ========================================
   STANDING TIME & ROOM SIZE FORM ELEMENTS
   ======================================== */

/* Grid layout for form fields */
.calc-input-block__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  width: 100%;
}

.calc-input-block__grid--2col {
  grid-template-columns: repeat(2, 1fr);
}

/* Individual form field */
.calc-input-block__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.calc-input-block__label {
  font-size: var(--font-xs);
  color: var(--color-text-secondary);
  font-weight: var(--font-medium);
}

/* Fieldset for grouped inputs */
.calc-input-block__fieldset {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.calc-input-block__fieldset-title {
  font-size: var(--font-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

/* Row for side-by-side fields */
.calc-input-block__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

/* Wider input for room-size calculator */
.calc-input-block__grid .calc-input-block__input {
  width: 100%;
  text-align: left;
}

/* Checkbox options */
.calc-input-block__options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.calc-input-block__checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
}

.calc-input-block__checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Actions row for buttons */
.calc-input-block__actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

/* REMOVED: :has() selectors - now using explicit --stacked modifier instead */

/* Responsive for standing-time/room-size */
@media (max-width: 768px) {
  .calc-input-block__grid {
    grid-template-columns: 1fr;
  }

  .calc-input-block__grid--2col {
    grid-template-columns: 1fr;
  }

  .calc-input-block__options {
    flex-direction: column;
    gap: var(--space-2);
  }

  .calc-input-block__actions {
    flex-direction: column;
  }

  .calc-input-block__actions .calc-input-block__btn {
    width: 100%;
    text-align: center;
  }
}

/* ========================================
   UTILITY
   ======================================== */
.calc-hidden {
  display: none !important;
}