/* ============================================================
   CALCULATOR DESIGN SYSTEM — CSS Custom Properties
   Scoped to .silva-calculator-container to avoid theme bleed
   ============================================================ */
.silva-calculator-container {
    /* Brand Colors */
    --calc-primary:        #2563eb;
    --calc-primary-dark:   #1d4ed8;
    --calc-primary-light:  #eff6ff;
    --calc-accent:         #10b981;
    --calc-accent-dark:    #059669;
    --calc-danger:         #ef4444;
    --calc-warning:        #f59e0b;

    /* Neutrals */
    --calc-gray-50:  #f9fafb;
    --calc-gray-100: #f3f4f6;
    --calc-gray-200: #e5e7eb;
    --calc-gray-300: #d1d5db;
    --calc-gray-400: #9ca3af;
    --calc-gray-500: #6b7280;
    --calc-gray-700: #374151;
    --calc-gray-900: #111827;
    --calc-white:    #ffffff;

    /* Typography */
    --calc-font-xs:   11px;
    --calc-font-sm:   13px;
    --calc-font-base: 15px;
    --calc-font-lg:   18px;
    --calc-font-xl:   22px;
    --calc-font-2xl:  28px;

    /* Spacing */
    --calc-space-xs:  4px;
    --calc-space-sm:  8px;
    --calc-space-md:  16px;
    --calc-space-lg:  24px;
    --calc-space-xl:  32px;
    --calc-space-2xl: 48px;

    /* Borders */
    --calc-radius-sm: 8px;
    --calc-radius:    12px;
    --calc-radius-lg: 16px;
    --calc-radius-xl: 20px;
    --calc-border:    1px solid var(--calc-gray-200);
    --calc-border-focus: 2px solid var(--calc-primary);

    /* Shadows */
    --calc-shadow-sm:   0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --calc-shadow:      0 4px 12px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
    --calc-shadow-lg:   0 10px 30px rgba(0,0,0,.12), 0 4px 10px rgba(0,0,0,.06);
    --calc-shadow-hover:0 8px 24px rgba(37,99,235,.18), 0 2px 8px rgba(37,99,235,.10);

    /* Transitions */
    --calc-transition: all 0.2s ease;
    --calc-transition-slow: all 0.35s ease;

    /* Running Total Gradient */
    --calc-total-gradient: linear-gradient(135deg, var(--calc-primary) 0%, #1e40af 100%);
}

/* ============================================================
   CALCULATOR WIZARD BASE LAYOUT
   ============================================================ */
.silva-calculator-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: var(--calc-font-base);
    color: var(--calc-gray-900);
    max-width: 780px;
    margin: 0 auto;
    padding: var(--calc-space-lg);
    background: var(--calc-white);
    border-radius: var(--calc-radius-xl);
    box-shadow: var(--calc-shadow-lg);
}

.silva-calculator-header {
    text-align: center;
    padding: var(--calc-space-lg) 0 var(--calc-space-xl);
    border-bottom: var(--calc-border);
    margin-bottom: var(--calc-space-xl);
}

.silva-calculator-header h2 {
    font-size: var(--calc-font-2xl);
    font-weight: 700;
    color: var(--calc-gray-900);
    margin: 0 0 var(--calc-space-sm);
    line-height: 1.2;
}

.silva-calculator-header p {
    font-size: var(--calc-font-base);
    color: var(--calc-gray-500);
    margin: 0;
}

/* ============================================================
   PROGRESS BAR
   ============================================================ */
.silva-calculator-progress {
    margin-bottom: var(--calc-space-xl);
}

.silva-calculator-progress .progress-bar {
    height: 6px;
    background: var(--calc-gray-200);
    border-radius: 99px;
    overflow: hidden;
    margin-bottom: var(--calc-space-sm);
}

.silva-calculator-progress .progress-fill {
    height: 100%;
    background: var(--calc-total-gradient);
    border-radius: 99px;
    transition: width 0.45s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 4px;
}

.silva-calculator-progress .progress-text {
    font-size: var(--calc-font-sm);
    color: var(--calc-gray-500);
    text-align: right;
    font-weight: 500;
}

/* ============================================================
   STEP DOTS (numbered navigation dots)
   ============================================================ */
.calc-step-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: var(--calc-space-xl);
    padding: 0 var(--calc-space-md);
}

.calc-step-dot {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: var(--calc-font-sm);
    font-weight: 600;
    background: var(--calc-gray-100);
    color: var(--calc-gray-400);
    border: 2px solid var(--calc-gray-200);
    cursor: default;
    transition: var(--calc-transition);
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

/* Connector line between dots */
.calc-step-dot:not(:last-child)::after {
    content: '';
    position: absolute;
    left: calc(100% + 2px);
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 2px;
    background: var(--calc-gray-200);
    z-index: 0;
}

.calc-step-dot.active {
    background: var(--calc-primary);
    color: var(--calc-white);
    border-color: var(--calc-primary);
    box-shadow: 0 0 0 4px rgba(37,99,235,.15);
}

.calc-step-dot.complete {
    background: var(--calc-accent);
    color: var(--calc-white);
    border-color: var(--calc-accent);
}

.calc-step-dot.complete::after {
    background: var(--calc-accent);
}

/* Accommodate many dots on small screens */
@media (max-width: 480px) {
    .calc-step-dot {
        width: 26px;
        height: 26px;
        font-size: var(--calc-font-xs);
    }
    .calc-step-dot:not(:last-child)::after {
        width: 16px;
    }
}

/* ============================================================
   STEP CONTENT
   ============================================================ */
.calculator-step {
    display: none;
    animation: calcStepIn 0.25s ease-out;
}

.calculator-step.active {
    display: block;
}

@keyframes calcStepIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.calculator-step > h3 {
    font-size: var(--calc-font-lg);
    font-weight: 700;
    color: var(--calc-gray-900);
    margin: 0 0 var(--calc-space-sm);
    padding-bottom: var(--calc-space-sm);
    border-bottom: 2px solid var(--calc-gray-100);
}

.calculator-step > p {
    font-size: var(--calc-font-sm);
    color: var(--calc-gray-500);
    margin: 0 0 var(--calc-space-lg);
}

/* ============================================================
   OPTION CARDS (radio / checkbox selections)
   ============================================================ */
.option-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--calc-space-md);
    margin-bottom: var(--calc-space-lg);
}

/* Narrow groups — 2 col max */
.option-group.option-group-2col {
    grid-template-columns: repeat(2, 1fr);
}

/* Wide groups — force single row with wrap */
.option-group.option-group-wide {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}

.option-card {
    position: relative;
    cursor: pointer;
    display: block;
}

.option-card input[type="radio"],
.option-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.option-content {
    border: 2px solid var(--calc-gray-200);
    border-radius: var(--calc-radius);
    padding: var(--calc-space-md) var(--calc-space-md);
    background: var(--calc-white);
    transition: var(--calc-transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--calc-space-xs);
}

.option-card:hover .option-content {
    border-color: var(--calc-primary);
    background: var(--calc-primary-light);
    box-shadow: var(--calc-shadow-hover);
    transform: translateY(-2px);
}

.option-card input:checked + .option-content {
    border-color: var(--calc-primary);
    background: var(--calc-primary-light);
    box-shadow: var(--calc-shadow-hover);
}

/* Checked checkmark badge */
.option-card input:checked + .option-content::before {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 10px;
    font-size: 12px;
    font-weight: 700;
    color: var(--calc-primary);
}

.option-title {
    font-size: var(--calc-font-base);
    font-weight: 600;
    color: var(--calc-gray-900);
    line-height: 1.3;
}

.option-description {
    font-size: var(--calc-font-sm);
    color: var(--calc-gray-500);
    line-height: 1.4;
    flex: 1;
}

.option-price {
    font-size: var(--calc-font-sm);
    font-weight: 700;
    color: var(--calc-primary);
    margin-top: auto;
}

/* ============================================================
   CHECKBOX CARDS (multi-select option list)
   ============================================================ */
.checkbox-group-vertical {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--calc-space-sm);
    margin-bottom: var(--calc-space-lg);
}

.checkbox-card {
    display: flex;
    align-items: center;
    gap: var(--calc-space-sm);
    padding: var(--calc-space-sm) var(--calc-space-md);
    border: 2px solid var(--calc-gray-200);
    border-radius: var(--calc-radius-sm);
    cursor: pointer;
    background: var(--calc-white);
    transition: var(--calc-transition);
    font-size: var(--calc-font-base);
    font-weight: 500;
    color: var(--calc-gray-700);
    min-height: 48px;
}

.checkbox-card:hover {
    border-color: var(--calc-primary);
    background: var(--calc-primary-light);
}

.checkbox-card input[type="checkbox"] {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    accent-color: var(--calc-primary);
    flex-shrink: 0;
    cursor: pointer;
}

.checkbox-card:has(input:checked) {
    border-color: var(--calc-primary);
    background: var(--calc-primary-light);
}

/* ============================================================
   FORM GROUPS + INPUTS
   ============================================================ */
.form-group {
    margin-bottom: var(--calc-space-md);
}

.form-group label {
    display: block;
    font-size: var(--calc-font-sm);
    font-weight: 600;
    color: var(--calc-gray-700);
    margin-bottom: var(--calc-space-xs);
    letter-spacing: 0.01em;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px var(--calc-space-md);
    border: var(--calc-border);
    border-radius: var(--calc-radius-sm);
    font-size: var(--calc-font-base);
    color: var(--calc-gray-900);
    background: var(--calc-white);
    transition: var(--calc-transition);
    box-sizing: border-box;
    -webkit-appearance: none;
    appearance: none;
    min-height: 44px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border: var(--calc-border-focus);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

/* Select arrow */
.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* ============================================================
   QUANTITY STEPPER
   ============================================================ */
.calc-qty-stepper {
    display: inline-flex;
    align-items: center;
    border: var(--calc-border);
    border-radius: var(--calc-radius-sm);
    overflow: hidden;
    background: var(--calc-white);
    box-shadow: var(--calc-shadow-sm);
}

.calc-qty-stepper button {
    width: 40px;
    height: 44px;
    border: none;
    background: var(--calc-gray-50);
    color: var(--calc-gray-700);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--calc-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    line-height: 1;
}

.calc-qty-stepper button:hover {
    background: var(--calc-primary-light);
    color: var(--calc-primary);
}

.calc-qty-stepper button:active {
    background: var(--calc-primary);
    color: var(--calc-white);
}

.calc-qty-stepper input {
    width: 60px;
    height: 44px;
    border: none;
    border-left: var(--calc-border);
    border-right: var(--calc-border);
    text-align: center;
    font-size: var(--calc-font-base);
    font-weight: 600;
    color: var(--calc-gray-900);
    background: var(--calc-white);
    -moz-appearance: textfield;
    appearance: textfield;
}

.calc-qty-stepper input::-webkit-inner-spin-button,
.calc-qty-stepper input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.calc-qty-stepper input:focus {
    outline: none;
    background: var(--calc-primary-light);
}

/* ============================================================
   CONDITIONAL REVEAL PANELS
   ============================================================ */
.calc-conditional-reveal {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.35s cubic-bezier(0.4,0,0.2,1),
                opacity 0.25s ease,
                padding 0.25s ease,
                margin 0.25s ease;
    padding-top: 0;
    margin-top: 0;
}

.calc-conditional-reveal.active {
    max-height: 1200px;
    opacity: 1;
    padding-top: var(--calc-space-md);
    margin-top: var(--calc-space-sm);
}

/* ============================================================
   RUNNING TOTAL BAR
   ============================================================ */
.calc-running-total {
    background: var(--calc-total-gradient);
    border-radius: var(--calc-radius);
    padding: var(--calc-space-md) var(--calc-space-lg);
    margin: var(--calc-space-lg) 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--calc-space-md);
    box-shadow: var(--calc-shadow);
}

.calc-running-total-label {
    color: rgba(255,255,255,0.85);
    font-size: var(--calc-font-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.calc-running-total-amount {
    color: var(--calc-white);
    font-size: var(--calc-font-xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.calc-running-total-note {
    color: rgba(255,255,255,0.70);
    font-size: var(--calc-font-xs);
    margin-top: 2px;
}

/* ============================================================
   ESTIMATE SUMMARY SIDEBAR / PANEL
   ============================================================ */
.silva-calculator-summary {
    background: var(--calc-gray-50);
    border: var(--calc-border);
    border-radius: var(--calc-radius);
    padding: var(--calc-space-lg);
    margin-top: var(--calc-space-xl);
}

.silva-calculator-summary h3 {
    font-size: var(--calc-font-lg);
    font-weight: 700;
    color: var(--calc-gray-900);
    margin: 0 0 var(--calc-space-md);
    padding-bottom: var(--calc-space-sm);
    border-bottom: var(--calc-border);
}

.summary-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--calc-space-sm);
    margin-bottom: var(--calc-space-md);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--calc-font-sm);
    color: var(--calc-gray-700);
    padding: var(--calc-space-xs) 0;
}

.summary-row.total {
    border-top: 2px solid var(--calc-gray-200);
    padding-top: var(--calc-space-sm);
    margin-top: var(--calc-space-xs);
    font-size: var(--calc-font-base);
    font-weight: 700;
    color: var(--calc-gray-900);
}

.summary-row .summary-value {
    font-weight: 600;
    color: var(--calc-primary);
}

.summary-row.total .summary-value {
    font-size: var(--calc-font-lg);
}

.summary-items {
    margin-top: var(--calc-space-md);
    padding-top: var(--calc-space-md);
    border-top: var(--calc-border);
}

.summary-items h4 {
    font-size: var(--calc-font-sm);
    font-weight: 600;
    color: var(--calc-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0 0 var(--calc-space-sm);
}

.selected-items-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--calc-space-xs);
}

.selected-items-list li {
    font-size: var(--calc-font-sm);
    color: var(--calc-gray-700);
    padding: var(--calc-space-xs) var(--calc-space-sm);
    background: var(--calc-white);
    border-radius: var(--calc-radius-sm);
    border: var(--calc-border);
}

/* ============================================================
   STEP NAVIGATION BUTTONS
   ============================================================ */
.step-navigation {
    display: flex;
    align-items: center;
    gap: var(--calc-space-md);
    margin-top: var(--calc-space-xl);
    padding-top: var(--calc-space-lg);
    border-top: var(--calc-border);
    flex-wrap: wrap;
}

.btn-next,
.btn-submit,
.btn-complete-estimate {
    background: var(--calc-total-gradient);
    color: var(--calc-white);
    border: none;
    border-radius: var(--calc-radius-sm);
    padding: 12px var(--calc-space-xl);
    font-size: var(--calc-font-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--calc-transition);
    min-height: 48px;
    box-shadow: 0 4px 14px rgba(37,99,235,.35);
    letter-spacing: 0.01em;
}

.btn-next:hover,
.btn-submit:hover,
.btn-complete-estimate:hover {
    box-shadow: 0 6px 20px rgba(37,99,235,.45);
    transform: translateY(-1px);
}

.btn-next:active,
.btn-submit:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(37,99,235,.25);
}

.btn-prev {
    background: var(--calc-white);
    color: var(--calc-gray-700);
    border: var(--calc-border);
    border-radius: var(--calc-radius-sm);
    padding: 12px var(--calc-space-lg);
    font-size: var(--calc-font-base);
    font-weight: 500;
    cursor: pointer;
    transition: var(--calc-transition);
    min-height: 48px;
}

.btn-prev:hover {
    background: var(--calc-gray-50);
    border-color: var(--calc-gray-400);
}

.btn-save-resume {
    background: none;
    color: var(--calc-gray-500);
    border: none;
    padding: 8px var(--calc-space-sm);
    font-size: var(--calc-font-sm);
    cursor: pointer;
    transition: var(--calc-transition);
    text-decoration: underline;
    text-underline-offset: 3px;
    min-height: 44px;
    margin-left: auto;
}

.btn-save-resume:hover {
    color: var(--calc-primary);
}

/* Submit button — only on final contact step */
.btn-submit {
    background: linear-gradient(135deg, var(--calc-accent) 0%, var(--calc-accent-dark) 100%);
    box-shadow: 0 4px 14px rgba(16,185,129,.35);
    padding: 14px 32px;
    font-size: var(--calc-font-base);
}

.btn-submit:hover {
    box-shadow: 0 6px 20px rgba(16,185,129,.45);
}

/* ============================================================
   CONTACT STEP CARD
   ============================================================ */
.calc-contact-card {
    background: var(--calc-gray-50);
    border: var(--calc-border);
    border-radius: var(--calc-radius);
    padding: var(--calc-space-lg) var(--calc-space-xl);
    margin-bottom: var(--calc-space-lg);
}

.calc-contact-card h3 {
    font-size: var(--calc-font-lg);
    font-weight: 700;
    margin: 0 0 var(--calc-space-xs);
    border: none;
    padding: 0;
}

.calc-contact-card .calc-contact-subtitle {
    font-size: var(--calc-font-sm);
    color: var(--calc-gray-500);
    margin: 0 0 var(--calc-space-lg);
}

.calc-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--calc-space-md) var(--calc-space-lg);
}

.calc-contact-grid .form-group.full-width {
    grid-column: 1 / -1;
}

.customer-autofill-notice {
    background: #ecfdf5;
    border: 1px solid #6ee7b7;
    border-radius: var(--calc-radius-sm);
    padding: var(--calc-space-sm) var(--calc-space-md);
    margin-bottom: var(--calc-space-md);
    font-size: var(--calc-font-sm);
    color: #065f46;
    display: flex;
    align-items: center;
    gap: var(--calc-space-sm);
    grid-column: 1 / -1;
}

/* ============================================================
   SUCCESS STATE / MODAL
   ============================================================ */
.silva-modal-success {
    text-align: center;
    padding: var(--calc-space-2xl) var(--calc-space-xl);
}

.silva-modal-success .success-icon {
    width: 64px;
    height: 64px;
    background: #ecfdf5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--calc-space-lg);
    font-size: 32px;
}

.silva-modal-success h3 {
    font-size: var(--calc-font-xl);
    font-weight: 700;
    color: var(--calc-gray-900);
    margin: 0 0 var(--calc-space-sm);
    border: none;
    padding: 0;
}

.silva-modal-success p {
    color: var(--calc-gray-500);
    max-width: 420px;
    margin: 0 auto var(--calc-space-xl);
}

/* ============================================================
   ROOM MANAGER (painting / flooring multi-room toolbar)
   ============================================================ */
.room-manager {
    background: var(--calc-primary-light);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: var(--calc-radius);
    padding: var(--calc-space-md) var(--calc-space-lg);
    margin: var(--calc-space-lg) 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--calc-space-md);
    flex-wrap: wrap;
}

.room-manager-actions {
    display: flex;
    gap: var(--calc-space-sm);
    flex: 1;
    min-width: 220px;
}

.room-manager-actions .btn-room-add,
.room-manager-actions .btn-room-remove {
    flex: 1;
    padding: 10px var(--calc-space-md);
    border-radius: var(--calc-radius-sm);
    font-size: var(--calc-font-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--calc-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 44px;
    line-height: 1;
}

.room-manager-actions .btn-room-add {
    background: var(--calc-primary);
    color: var(--calc-white);
    border: 2px solid var(--calc-primary);
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
}

.room-manager-actions .btn-room-add:hover {
    background: var(--calc-primary-dark);
    border-color: var(--calc-primary-dark);
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.35);
    transform: translateY(-1px);
}

.room-manager-actions .btn-room-remove {
    background: transparent;
    color: var(--calc-danger);
    border: 2px solid var(--calc-danger);
}

.room-manager-actions .btn-room-remove:hover {
    background: var(--calc-danger);
    color: var(--calc-white);
    transform: translateY(-1px);
}

.room-manager-count {
    background: var(--calc-white);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--calc-radius-sm);
    padding: 8px 14px;
    color: var(--calc-primary);
    font-size: var(--calc-font-sm);
    font-weight: 700;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ============================================================
   MOBILE — GLOBAL CALCULATOR RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .silva-calculator-container {
        padding: var(--calc-space-md);
        border-radius: var(--calc-radius);
        box-shadow: none;
    }

    .silva-calculator-header {
        padding: var(--calc-space-md) 0 var(--calc-space-lg);
    }

    .silva-calculator-header h2 {
        font-size: var(--calc-font-xl);
    }

    .option-group {
        grid-template-columns: 1fr 1fr;
    }

    .option-group.option-group-wide {
        grid-template-columns: 1fr 1fr;
    }

    .checkbox-group-vertical {
        grid-template-columns: 1fr 1fr;
    }

    .calc-contact-grid {
        grid-template-columns: 1fr;
    }

    .step-navigation {
        gap: var(--calc-space-sm);
    }

    .btn-next,
    .btn-submit {
        flex: 1;
        min-width: 0;
    }

    .btn-save-resume {
        width: 100%;
        text-align: center;
        margin-left: 0;
    }

    .calc-running-total {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--calc-space-xs);
        padding: var(--calc-space-md);
    }

    .calc-running-total-amount {
        font-size: var(--calc-font-lg);
    }
}

@media (max-width: 420px) {
    .option-group,
    .option-group.option-group-wide,
    .checkbox-group-vertical {
        grid-template-columns: 1fr;
    }

    .calc-step-dot {
        width: 24px;
        height: 24px;
        font-size: 10px;
    }

    .calc-step-dot:not(:last-child)::after {
        width: 10px;
    }
}

/* ============================================================
   CALCULATOR INTEGRATION STYLES (admin/modal side)
   ============================================================ */

/* Calculator Button */
#use-calculators-btn {
    background: #2271b1;
    border-color: #2271b1;
    color: #fff;
    margin-right: 8px;
}

#use-calculators-btn:hover {
    background: #135e96;
    border-color: #135e96;
}

#use-calculators-btn .dashicons {
    font-size: 16px;
    vertical-align: text-bottom;
    margin-right: 4px;
}

/* Modal Base Styles */
.silva-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

.modal-content {
    position: relative;
    background: #fff;
    border-radius: 8px;
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    margin: auto;
    z-index: 1;
    animation: modalFadeIn 0.2s ease-out;
}

/* Ensure calculator selector is centered on desktop */
#calculator-selector-modal .modal-content {
    margin-left: auto;
    margin-right: auto;
    left: 0;
    right: 0;
}

/* General rule: Ensure all modals are centered on desktop */
@media (min-width: 769px) {
    .silva-modal .modal-content {
        margin-left: auto;
        margin-right: auto;
        left: auto;
        right: auto;
    }
}

/* Desktop optimization for calculator selector */
@media (min-width: 769px) {
    #calculator-selector-modal {
        padding: 40px 20px;
    }
    
    #calculator-selector-modal .modal-content {
        max-width: 900px;
        width: 85%;
    }
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid #ddd;
    position: relative;
}

.modal-header h2 {
    margin: 0 0 8px 0;
    font-size: 20px;
}

.modal-header p {
    margin: 0;
    color: #646970;
    font-size: 14px;
}

.modal-close,
.modal-close-room-import {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 24px;
    color: #646970;
    padding: 4px;
}

.modal-close:hover,
.modal-close-room-import:hover {
    color: #000;
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid #ddd;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background: #f6f7f7;
}

/* Calculator Selector Modal */
.calculator-selector-content {
    max-width: 900px;
    margin-left: auto !important;
    margin-right: auto !important;
}

.calculator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin: 20px 0;
}

/* Desktop: Optimize grid layout */
@media (min-width: 1025px) {
    .calculator-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

.calculator-card {
    border: 2px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s;
    display: block;
    background: #fff;
}

.calculator-card:hover {
    border-color: #2271b1;
    background: #f6f7f7;
}

.calculator-card input[type="checkbox"] {
    float: none;
    margin: 0 12px 0 0;
    vertical-align: middle;
}

.calculator-card input[type="checkbox"]:checked ~ .card-content {
    color: #2271b1;
}

.card-content {
    display: inline-block;
    vertical-align: middle;
}

.calculator-icon {
    font-size: 32px;
    display: block;
    margin-bottom: 8px;
}

.calculator-card h3 {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 600;
}

.calculator-card p {
    margin: 0;
    font-size: 13px;
    color: #646970;
}

/* Room Import Modal */
.room-import-content {
    max-width: 600px;
    margin-left: auto !important;
    margin-right: auto !important;
}

/* Ensure room import modal is centered on desktop */
#room-import-modal .modal-content {
    margin-left: auto;
    margin-right: auto;
    left: 0;
    right: 0;
}

/* Desktop optimization for room import modal */
@media (min-width: 769px) {
    #room-import-modal {
        padding: 40px 20px;
    }
    
    #room-import-modal .modal-content {
        max-width: 650px;
        width: 85%;
    }
}

.source-info {
    padding: 12px;
    background: #f0f0f1;
    border-radius: 4px;
    margin-bottom: 16px;
}

.room-selection-list {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 10px;
    background: #fff;
}

.room-item {
    display: flex;
    align-items: center;
    padding: 10px;
    border-bottom: 1px solid #eee;
    cursor: pointer;
}

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

.room-item:hover {
    background: #f6f7f7;
}

.room-item input[type="checkbox"] {
    margin: 0 12px 0 0;
    float: none;
}

.room-name {
    font-weight: 600;
    margin-right: 8px;
}

.room-dims {
    color: #646970;
    font-size: 13px;
}

.import-options {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid #ddd;
}

.import-options label {
    font-weight: 600;
}

/* Group Header Rows */
.silva-item-group-header td {
    background: #f0f0f1;
    font-weight: 600;
    border-left: 4px solid #2271b1;
    padding: 12px 8px !important;
}

.group-header-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.group-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
}

.group-toggle .dashicons {
    transition: transform 0.2s;
}

.group-toggle.collapsed .dashicons {
    transform: rotate(-90deg);
}

.group-total {
    margin-left: auto;
    color: #2271b1;
    font-size: 16px;
    font-weight: 700;
}

.group-delete {
    background: none;
    border: none;
    color: #d63638;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
}

.group-delete:hover {
    color: #b32d2e;
}

.group-delete .dashicons {
    font-size: 18px;
}

/* Calculator-sourced items badge */
tr[data-calculator-source="true"] {
    position: relative;
}

tr[data-calculator-source="true"] td:first-child::before {
    content: "📊";
    position: absolute;
    left: 2px;
    font-size: 12px;
    opacity: 0.5;
}

/* Responsive adjustments */

/* Tablets and small laptops */
@media (max-width: 1024px) {
    .silva-modal {
        padding: 15px;
    }

    .modal-content {
        max-width: 90%;
    }

    .calculator-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 15px;
    }
}

/* Tablets portrait and large phones landscape */
@media (max-width: 768px) {
    .silva-modal {
        padding: 10px;
    }

    .modal-content {
        width: 95%;
        max-width: none;
        max-height: 95vh;
        border-radius: 6px;
    }
    
    .calculator-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .modal-header {
        padding: 15px;
    }

    .modal-header h2 {
        font-size: 1.25rem;
    }
    
    .modal-body {
        padding: 15px;
    }

    .calculator-card {
        padding: 16px;
    }
    
    .modal-footer {
        flex-direction: column-reverse;
        gap: 10px;
        padding: 15px;
    }
    
    .modal-footer button {
        width: 100%;
        padding: 14px 20px;
        font-size: 16px; /* Prevents iOS zoom on button tap */
    }
}

/* Mobile phones portrait */
@media (max-width: 480px) {
    .silva-modal {
        padding: 5px;
    }

    .modal-content {
        width: 98%;
        max-height: 98vh;
        border-radius: 4px;
    }

    .modal-header {
        padding: 12px;
    }

    .modal-header h2 {
        font-size: 1.1rem;
    }

    .close-modal {
        width: 32px;
        height: 32px;
        font-size: 20px;
    }

    .modal-body {
        padding: 12px;
    }

    .calculator-card {
        padding: 14px;
    }

    .calculator-card h3 {
        font-size: 1.1rem;
    }

    .calculator-card p {
        font-size: 0.9rem;
    }

    .modal-footer {
        padding: 12px;
    }
}

/* Safe area support for iOS notch/dynamic island */
@supports (padding: env(safe-area-inset-top)) {
    .silva-modal {
        padding-top: max(20px, env(safe-area-inset-top));
        padding-bottom: max(20px, env(safe-area-inset-bottom));
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
    }

    @media (max-width: 768px) {
        .silva-modal {
            padding-top: max(10px, env(safe-area-inset-top));
            padding-bottom: max(10px, env(safe-area-inset-bottom));
            padding-left: max(10px, env(safe-area-inset-left));
            padding-right: max(10px, env(safe-area-inset-right));
        }
    }

    @media (max-width: 480px) {
        .silva-modal {
            padding-top: max(5px, env(safe-area-inset-top));
            padding-bottom: max(5px, env(safe-area-inset-bottom));
            padding-left: max(5px, env(safe-area-inset-left));
            padding-right: max(5px, env(safe-area-inset-right));
        }
    }
}

/* Smooth scrolling for modal body */
.modal-body {
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    scroll-behavior: smooth;
}

/* Prevent body scroll when modal is open */
body.modal-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* Ensure touch targets are large enough on mobile */
@media (max-width: 768px) {
    button,
    .calculator-card,
    .close-modal {
        min-height: 44px; /* iOS recommendation for touch targets */
    }
}

/* Improve text readability on mobile */
@media (max-width: 480px) {
    .modal-content {
        font-size: 16px; /* Prevents iOS zoom on input focus */
        -webkit-text-size-adjust: 100%;
    }
}

/* Fullscreen Calculator Modal */
.calculator-fullscreen-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;               /* fallback */
    height: -webkit-fill-available; /* older iOS Safari */
    height: 100dvh;              /* dynamic viewport — shrinks when URL bar appears */
    z-index: 100001;
    background: rgba(0, 0, 0, 0.95);
    overflow: hidden;
}

.calculator-fullscreen-modal.active {
    display: flex;
    flex-direction: column;
}

.calculator-modal-header {
    background: #fff;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.calculator-modal-title {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.close-calculator-modal {
    background: #f44336;
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.2s;
}

.close-calculator-modal:hover {
    background: #d32f2f;
}

.calculator-modal-body {
    flex: 1;
    position: relative;
    background: #fff;
    overflow: hidden;
}

.calculator-iframe-container {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.calculator-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 1;
}

.calculator-loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #2271b1;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.calculator-loading p {
    color: #666;
    font-size: 16px;
    margin: 0;
}

/* Hide loading once iframe is ready */
.calculator-fullscreen-modal.iframe-loaded .calculator-loading {
    display: none;
}

/* Mobile adjustments for fullscreen calculator */
@media (max-width: 768px) {
    .calculator-modal-header {
        padding: 10px 15px;
    }

    .calculator-modal-title {
        font-size: 14px;
    }

    .close-calculator-modal {
        padding: 6px 12px;
        font-size: 13px;
    }
}

/* Success Toast Notification */
.calculator-success-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #4caf50;
    color: #fff;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 100002;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 500;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
}

.calculator-success-toast.show {
    opacity: 1;
    transform: translateX(0);
}

.calculator-success-toast .dashicons {
    font-size: 20px;
    width: 20px;
    height: 20px;
}

@media (max-width: 768px) {
    .calculator-success-toast {
        top: 10px;
        right: 10px;
        left: 10px;
        padding: 14px 20px;
        font-size: 14px;
    }
}