/* ─── Variables ──────────────────────────────────────────────────────────── */
:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --card-bg:       #ffffff;
  --text-main:     #1f2937;
  --text-muted:    #6b7280;
  --border-color:  #e5e7eb;
  --success-color: #059669;
  --danger-color:  #dc2626;
  --section-num-bg: #eff6ff;
}

/* ─── Wrapper ─────────────────────────────────────────────────────────────── */
.calculator-wrapper {
  background: var(--card-bg);
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 4px 24px -2px rgba(0,0,0,0.08), 0 2px 8px -2px rgba(0,0,0,0.04);
  padding: 2rem;
  margin: auto;
}

.calculator-wrapper header {
  text-align: center;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.calculator-wrapper header h2 {
  margin: 0 0 0.3rem;
  color: var(--text-main);
}

p.subtitle {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
}

/* ─── Two-column grid ─────────────────────────────────────────────────────── */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 768px) {
  .calc-grid {
    grid-template-columns: 1.5fr 1fr;
  }
}

/* ─── Left form section ───────────────────────────────────────────────────── */
.calc-grid .form-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ─── Numbered section blocks ─────────────────────────────────────────────── */
.dwk-section-block {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.1rem 1.2rem;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.dwk-section-block:focus-within {
  border-color: #93c5fd;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.07);
}

.dwk-section-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--section-num-bg);
  color: var(--primary-color);
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.dwk-section-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dwk-section-label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.dwk-section-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.4;
}

/* ─── Select + Price row ──────────────────────────────────────────────────── */
.dwk-select-price-row {
  display: flex;
  gap: 0.6rem;
  align-items: stretch;
}

.dwk-select-grow {
  flex: 1;
  min-width: 0;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.9rem;
  background: #fff;
  color: var(--text-main);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.dwk-select-grow:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

/* ─── Price field ─────────────────────────────────────────────────────────── */
.dwk-price-field {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
  flex-shrink: 0;
}

.dwk-price-field:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.dwk-currency {
  padding: 0 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  background: #f8fafc;
  border-right: 1px solid var(--border-color);
  align-self: stretch;
  display: flex;
  align-items: center;
  user-select: none;
}

.dwk-price-field input[type="number"] {
  border: none;
  outline: none;
  padding: 0.65rem 0.6rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-color);
  width: 90px;
  background: transparent;
}

.dwk-price-field input[type="number"]::-webkit-inner-spin-button,
.dwk-price-field input[type="number"]::-webkit-outer-spin-button { opacity: 0; }

.dwk-per-label {
  padding: 0 0.6rem 0 0;
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ─── Pages section ───────────────────────────────────────────────────────── */
.dwk-pages-row {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.dwk-pages-slider-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.dwk-pages-slider-wrap input[type="range"] {
  flex: 1;
  accent-color: var(--primary-color);
  cursor: pointer;
  height: 6px;
}

.dwk-pages-display {
  display: flex;
  align-items: baseline;
  gap: 4px;
  flex-shrink: 0;
}

.dwk-pages-display span:first-child {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary-color);
  min-width: 28px;
  text-align: right;
}

.dwk-pages-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.dwk-pages-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  background: #f8fafc;
  border-radius: 6px;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--border-color);
  transition: all 0.2s;
}

.dwk-pages-note--active {
  color: var(--primary-color);
  background: #eff6ff;
  border-color: #bfdbfe;
}

/* ─── Add-on rows ─────────────────────────────────────────────────────────── */
.dwk-addon-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.5rem;
  animation: dwk-slide-in 0.18s ease;
}

.dwk-addon-row.dwk-row-exit {
  opacity: 0;
  transform: translateX(6px);
  transition: all 0.16s ease;
}

@keyframes dwk-slide-in {
  from { opacity: 0; transform: translateY(-5px); }
  to   { opacity: 1; transform: translateY(0); }
}

.dwk-addon-label-input {
  flex: 2;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.88rem;
  color: var(--text-main);
  transition: border-color 0.2s, box-shadow 0.2s;
  background: #fff;
}

.dwk-addon-label-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.08);
}

.dwk-addon-row .dwk-price-field {
  flex: 1;
  min-width: 90px;
}

.dwk-addon-row .dwk-price-field input[type="number"] {
  width: 100%;
}

/* Remove button */
.dwk-remove-btn,
.dwk-addon-row .dwk-remove-btn,
.dwk-addon-remove-btn {
  position: static !important;
  top: auto !important;
  right: auto !important;
  margin: 0 !important;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border: 1px solid #fca5a5;
  border-radius: 6px;
  background: #fef2f2;
  color: var(--danger-color);
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  padding: 0;
}

.dwk-remove-btn:hover,
.dwk-addon-row .dwk-remove-btn:hover,
.dwk-addon-remove-btn:hover {
  background: var(--danger-color);
  color: #fff;
  border-color: var(--danger-color);
}

/* Add button */
.dwk-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.3rem;
  padding: 0.5rem 1rem;
  border: 1.5px dashed var(--primary-color);
  border-radius: 8px;
  background: transparent;
  color: var(--primary-color);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.18s;
}

.dwk-add-btn:hover {
  background: #eff6ff;
}

/* ─── Summary sidebar ─────────────────────────────────────────────────────── */
.summary-section {
  background: #f8fafc;
  border-radius: 12px;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  position: sticky;
  top: 20px;
  height: fit-content;
}

.summary-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.1rem;
  color: var(--text-main);
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-color);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.65rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  gap: 0.5rem;
}

.summary-row span:first-child {
  flex: 1;
}

.summary-row span:last-child {
  font-weight: 600;
  color: var(--text-main);
  flex-shrink: 0;
}

/* Add-on sub-lines */
.dwk-addon-line {
  padding-left: 0.6rem;
  margin-bottom: 0.4rem !important;
  font-size: 0.82rem !important;
}

.dwk-addon-line-label {
  color: var(--text-muted) !important;
  font-style: italic;
}

/* Total row */
.summary-row.total {
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 2px dashed var(--border-color);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-main);
  align-items: center;
  margin-bottom: 0;
}

.total-amount {
  color: var(--primary-color);
}

/* ─── CTA button ──────────────────────────────────────────────────────────── */
.cta-button {
  display: block;
  width: 100%;
  background-color: var(--primary-color);
  color: white;
  text-align: center;
  padding: 0.9rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  margin-top: 1.3rem;
  transition: background-color 0.2s;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
}

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

.note {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.8rem;
}

/* ─── Quote form ──────────────────────────────────────────────────────────── */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.input-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-main);
}

.form-row {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
  width: 100%;
}

.form-row .input-group {
  flex: 1;
  min-width: 0;
}

/* ─── Multi-select dropdown ───────────────────────────────────────────────── */
.dwk-multiselect {
  position: relative;
  width: 100%;
}

.dwk-ms-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.85rem;
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  background: #fff;
  color: var(--text-muted);
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
  text-align: left;
  gap: 0.5rem;
}

.dwk-ms-trigger:hover,
.dwk-ms-trigger--open {
  border-color: var(--primary-color);
  color: var(--text-main);
}

.dwk-ms-trigger--open {
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

#dwk-ms-label {
  flex: 1;
  font-weight: 500;
}

.dwk-ms-arrow {
  font-size: 0.85rem;
  transition: transform 0.2s;
  flex-shrink: 0;
}

.dwk-ms-trigger--open .dwk-ms-arrow {
  transform: rotate(180deg);
}

/* Dropdown panel */
.dwk-ms-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #fff;
  border: 1.5px solid var(--primary-color);
  border-top: none;
  border-bottom-left-radius: 8px;
  border-bottom-right-radius: 8px;
  box-shadow: 0 8px 20px -4px rgba(0,0,0,0.12);
  max-height: 240px;
  overflow-y: auto;
  z-index: 100;
}

.dwk-ms-panel--open {
  display: block;
  animation: dwk-slide-in 0.15s ease;
}

/* Each option item */
.dwk-ms-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.65rem 0.85rem;
  cursor: pointer;
  transition: background 0.15s;
  border-bottom: 1px solid #f1f5f9;
}

.dwk-ms-item:last-child {
  border-bottom: none;
}

.dwk-ms-item:hover {
  background: #eff6ff;
}

.dwk-ms-item:has(.dwk-ms-checkbox:checked) {
  background: #eff6ff;
}

.dwk-ms-checkbox {
  width: 16px;
  height: 16px;
  accent-color: var(--primary-color);
  flex-shrink: 0;
  cursor: pointer;
}

.dwk-ms-item-label {
  flex: 1;
  font-size: 0.88rem;
  color: var(--text-main);
  font-weight: 500;
}

.dwk-ms-item-price {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-color);
  background: #eff6ff;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  flex-shrink: 0;
}

.dwk-ms-empty {
  padding: 0.75rem 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
}

/* ─── Custom addon divider ────────────────────────────────────────────────── */
.dwk-custom-divider {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0.85rem 0 0.6rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dwk-custom-divider::before,
.dwk-custom-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

/* ─── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .calculator-wrapper {
    padding: 1.2rem;
  }

  .form-row {
    flex-direction: column;
    gap: 12px;
  }

  .dwk-select-price-row {
    flex-direction: column;
  }

  .dwk-price-field input[type="number"] {
    width: 70px;
  }

  .dwk-section-block {
    gap: 0.6rem;
    padding: 0.9rem 1rem;
  }
}

/* ─── Design Complexity Showcase Examples ─────────────────────────────────── */
.dwk-examples-container {
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--border-color);
}

.dwk-examples-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.dwk-examples-heading {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary-color);
}

.dwk-examples-icon {
  stroke: var(--primary-color);
  flex-shrink: 0;
}

.dwk-examples-subtext {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.dwk-examples-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1), transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.dwk-example-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
  position: relative;
  cursor: pointer;
}

.dwk-example-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-3px);
  box-shadow: 0 8px 18px -4px rgba(37, 99, 235, 0.18), 0 3px 6px -2px rgba(0, 0, 0, 0.05);
  text-decoration: none;
}

.dwk-example-thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #f1f5f9;
}

.dwk-example-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.dwk-example-card:hover .dwk-example-thumb {
  transform: scale(1.06);
}

.dwk-example-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8fafc;
  color: #94a3b8;
}

.dwk-example-badge {
  position: absolute;
  bottom: 6px;
  right: 6px;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: #ffffff;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 3px 7px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  opacity: 0.9;
  transition: all 0.2s ease;
  pointer-events: none;
}

.dwk-example-card:hover .dwk-example-badge {
  background: var(--primary-color);
  opacity: 1;
  transform: scale(1.04);
}

.dwk-example-caption-box {
  padding: 0.5rem 0.6rem;
  background: #ffffff;
  border-top: 1px solid #f1f5f9;
}

.dwk-example-caption {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
  transition: color 0.2s;
}

.dwk-example-card:hover .dwk-example-caption {
  color: var(--primary-color);
}

@media (max-width: 580px) {
  .dwk-examples-grid {
    grid-template-columns: 1fr;
  }
  .dwk-examples-header {
    flex-direction: column;
    align-items: flex-start;
  }
}