/* ── Reset & Base ── */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'Montserrat', sans-serif;
    background: #f7f6f3;
    color: #1a1a1a;
    font-size: 15px;
    line-height: 1.6;
  }

  /* ── CSS Variables ── */
  :root {
    --green:           #23a23a;
    --green-dark:      #1b7d2d;
    --green-light:     #eaf5ec;
    --copper:          #b87333;
    --white:           #ffffff;
    --off-white:       #f7f6f3;
    --card-bg:         #ffffff;
    --border:          #e4e2dc;
    --border-focus:    #23a23a;
    --text-primary:    #1a1a1a;
    --text-secondary:  #555551;
    --text-muted:      #888883;
    --radius-sm:       6px;
    --radius-md:       10px;
    --radius-lg:       16px;
    --shadow:          0 1px 3px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.04);
    --shadow-hover:    0 2px 8px rgba(0,0,0,0.10), 0 8px 24px rgba(0,0,0,0.06);
    --shadow-card:     0 2px 12px rgba(0,0,0,0.07), 0 8px 32px rgba(0,0,0,0.05);
  }

  /* ── Page Intro ── */
  .page-intro {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 3rem 2rem 2.5rem;
    text-align: center;
  }
  .page-intro-inner { max-width: 600px; margin: 0 auto; }
  .section-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--copper);
    margin-bottom: 0.5rem;
    font-family: 'IBM Plex Sans', sans-serif;
  }
  .page-intro h1 {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.2;
  }
  .page-intro p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.75;
    max-width: 480px;
    margin: 0 auto;
  }

  /* ── Disclaimer ── */
  .disclaimer {
    margin-top: 1.25rem;
    background: #fdf8f0;
    border: 1px solid #f0ddb8;
    border-radius: var(--radius-md);
    padding: 10px 16px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    text-align: left;
  }
  .disclaimer strong { color: var(--text-primary); }
  .disclaimer a { color: var(--green-dark); font-weight: 600; text-decoration: none; }
  .disclaimer a:hover { text-decoration: underline; }

  /* ── Calculator Layout ── */
  .calculator-wrap {
    max-width: 960px;
    margin: 0 auto;
    padding: 2.5rem 2rem 3.5rem;
  }
  .calculator-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 2rem;
    align-items: start;
  }

  /* ── Shared Form Styles ── */
  .form-group {
    margin-bottom: 2rem;
  }
  .form-group:last-child { margin-bottom: 0; }
  .form-group-label {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .form-group-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
  }

  /* ── Radio Cards (Inspection Type) ── */
  .radio-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .radio-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    background: var(--white);
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
    user-select: none;
  }
  .radio-card:hover {
    border-color: #c8d8cb;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  }
  .radio-card.selected {
    border-color: var(--green);
    background: var(--green-light);
  }
  .radio-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
  }
  .radio-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--border);
    flex-shrink: 0;
    position: relative;
    transition: border-color 0.15s;
  }
  .radio-dot::after {
    content: '';
    position: absolute;
    inset: 3px;
    border-radius: 50%;
    background: var(--green);
    opacity: 0;
    transition: opacity 0.15s;
  }
  .radio-card.selected .radio-dot {
    border-color: var(--green);
  }
  .radio-card.selected .radio-dot::after {
    opacity: 1;
  }
  .radio-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.3;
  }
  .radio-card.selected .radio-text {
    color: var(--green-dark);
    font-weight: 600;
  }

  /* ── Add-on note ── */
  .addon-note {
    margin-top: 10px;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
  }
  .addon-note strong { color: var(--text-secondary); }
  .addon-note a { color: var(--green-dark); font-weight: 600; text-decoration: none; }
  .addon-note a:hover { text-decoration: underline; }

  /* ── Square Footage Input ── */
  .sqft-input-wrap {
    position: relative;
  }
  .sqft-input-wrap::after {
    content: 'sq ft';
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    pointer-events: none;
  }
  input[type="number"] {
    width: 100%;
    padding: 12px 50px 12px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--white);
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
    appearance: textfield;
    -moz-appearance: textfield;
  }
  input[type="number"]::-webkit-inner-spin-button,
  input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; }
  input[type="number"]::placeholder { color: var(--text-muted); font-weight: 400; }
  input[type="number"]:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(35,162,58,0.12);
  }
  .sqft-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
  }

  /* ── Add-On Checkboxes ── */
  .checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .checkbox-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    background: var(--white);
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
    user-select: none;
  }
  .checkbox-card:hover {
    border-color: #c8d8cb;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  }
  .checkbox-card.selected {
    border-color: var(--green);
    background: var(--green-light);
  }
  .checkbox-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
  }
  .checkbox-box {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 2px solid var(--border);
    flex-shrink: 0;
    position: relative;
    transition: border-color 0.15s, background 0.15s;
  }
  .checkbox-box::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 1px;
    width: 6px;
    height: 10px;
    border: 2px solid #fff;
    border-top: none;
    border-left: none;
    transform: rotate(40deg);
    opacity: 0;
    transition: opacity 0.15s;
  }
  .checkbox-card.selected .checkbox-box {
    border-color: var(--green);
    background: var(--green);
  }
  .checkbox-card.selected .checkbox-box::after {
    opacity: 1;
  }
  .checkbox-info {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
  }
  .checkbox-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
  }
  .checkbox-card.selected .checkbox-name {
    color: var(--green-dark);
    font-weight: 600;
  }
  .checkbox-price {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
  }
  .checkbox-card.selected .checkbox-price {
    color: var(--green-dark);
  }

  /* ── Summary Card ── */
  .summary-card {
    background: var(--white);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-card);
    position: sticky;
    top: 1.5rem;
  }
  .summary-card-header {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .summary-card-header::before {
    content: '🧾';
    font-size: 16px;
  }

  /* Empty state */
  .summary-empty {
    text-align: center;
    padding: 1.5rem 0.5rem;
  }
  .summary-empty-icon {
    font-size: 40px;
    margin-bottom: 0.75rem;
    opacity: 0.5;
  }
  .summary-empty p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.65;
  }

  /* Results */
  .summary-results { display: none; }
  .summary-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
    padding: 6px 0;
  }
  .summary-key {
    font-size: 13px;
    color: var(--text-muted);
    flex-shrink: 0;
  }
  .summary-val {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: right;
  }
  .summary-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 10px 0;
  }
  .summary-addons-section { margin: 0; }
  .summary-addon-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
    padding: 5px 0;
  }
  .summary-addon-key {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
  }
  .summary-addon-key::before {
    content: '+';
    font-size: 11px;
    font-weight: 700;
    color: var(--green);
  }
  .summary-addon-val {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
  }

  /* Total row */
  .summary-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: var(--green-light);
    border-radius: var(--radius-md);
    margin-top: 4px;
    border: 1px solid #c8eacf;
  }
  .summary-total-key {
    font-size: 13px;
    font-weight: 700;
    color: var(--green-dark);
  }
  .summary-total-val {
    font-size: 20px;
    font-weight: 700;
    color: var(--green-dark);
    font-family: 'IBM Plex Sans', sans-serif;
  }

  /* Contact for quote state */
  .summary-contact {
    display: none;
    text-align: center;
    padding: 14px;
    background: #fdf8f0;
    border: 1px solid #f0ddb8;
    border-radius: var(--radius-md);
    margin-top: 4px;
  }
  .contact-badge {
    display: inline-block;
    background: var(--copper);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 4px 12px;
    border-radius: 99px;
    margin-bottom: 0.5rem;
  }
  .summary-contact p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
  }

  /* CTA */
  .summary-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--green);
    color: #fff !important;
    padding: 12px 20px;
    border-radius: 99px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none !important;
    margin-top: 1.25rem;
    transition: background 0.15s, transform 0.1s;
    box-shadow: 0 2px 10px rgba(35,162,58,0.22);
  }
  .summary-cta:hover { background: var(--green-dark); color: #fff !important; transform: translateY(-1px); }
  .summary-cta::after { content: '→'; }
  .summary-disclaimer {
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
    margin-top: 0.75rem;
    line-height: 1.5;
  }

  /* ── Responsive ── */
  @media (max-width: 720px) {
    .calculator-grid {
      grid-template-columns: 1fr;
    }
    .summary-card { position: static; }
    .pricing-tables-grid { grid-template-columns: 1fr 1fr; }
    .page-intro h1 { font-size: 26px; }
  }
  @media (max-width: 480px) {
    .pricing-tables-grid { grid-template-columns: 1fr; }
    .calculator-wrap, .pricing-table-section { padding-left: 1rem; padding-right: 1rem; }
  }