/* =============================================================================
   KM Calculators — Base Styles (v3 — KlarMetrics design system)
   ============================================================================= */

:root {
    /* Brand */
    --km-calc-primary:        #059669;        /* emerald-600 — primary actions, active states */
    --km-calc-primary-light:  #10b981;        /* emerald-500 — gradients, accents */
    --km-calc-primary-dark:   #0f766e;        /* teal-700 — hover states */
    --km-calc-gradient:       linear-gradient(135deg, #10b981, #0d9488);

    /* Semantic */
    --km-calc-good:           #059669;        /* emerald-600 */
    --km-calc-good-bg:        #ecfdf5;        /* emerald-50 */
    --km-calc-good-border:    #6ee7b7;        /* emerald-300 */
    --km-calc-average:        #d97706;        /* amber-600 */
    --km-calc-average-bg:     #fffbeb;        /* amber-50 */
    --km-calc-average-border: #fcd34d;        /* amber-300 */
    --km-calc-poor:           #dc2626;        /* red-600 */
    --km-calc-poor-bg:        #fef2f2;        /* red-50 */
    --km-calc-poor-border:    #fca5a5;        /* red-300 */

    /* Text */
    --km-calc-text:           #1e293b;        /* slate-800 — headings */
    --km-calc-text-body:      #475569;        /* slate-600 — body */
    --km-calc-text-muted:     #64748b;        /* slate-500 — labels, help */
    --km-calc-text-light:     #94a3b8;        /* slate-400 — placeholders, faint */

    /* Surfaces */
    --km-calc-bg:             #f8fafc;        /* slate-50 */
    --km-calc-bg-card:        #ffffff;        /* white */
    --km-calc-bg-input:       #ffffff;        /* white */
    --km-calc-bg-sidebar:     linear-gradient(135deg, #f8fafc, #f1f5f9);
    --km-calc-bg-cta:         linear-gradient(135deg, #f0fdfa, #ccfbf1);

    /* Borders */
    --km-calc-border:         #e2e8f0;        /* slate-200 */
    --km-calc-border-accent:  #5eead4;        /* teal-300 */
    --km-calc-border-focus:   #6ee7b7;        /* emerald-300 */

    /* Shadows */
    --km-calc-shadow:         0 1px 3px rgba(0, 0, 0, 0.04);
    --km-calc-shadow-md:      0 4px 12px rgba(0, 0, 0, 0.06);
    --km-calc-shadow-hover:   0 4px 12px rgba(0, 0, 0, 0.06);
    --km-calc-shadow-primary: 0 4px 6px rgba(16, 185, 129, 0.30);

    /* Radius */
    --km-calc-radius:         12px;           /* matches site card 0.75rem */
    --km-calc-radius-sm:      8px;
    --km-calc-radius-xs:      6px;

    /* Motion */
    --km-calc-transition:     0.2s ease;
}

/* -----------------------------------------------------------------------------
   Container
   ----------------------------------------------------------------------------- */

.km-calc {
    font-family: inherit;
    color: var(--km-calc-text);
    background: var(--km-calc-bg-card);
    border-radius: var(--km-calc-radius);
    box-shadow: var(--km-calc-shadow-md);
    padding: 2rem;
    margin: 2rem 0;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}

/* Gradient top accent via pseudo-element */
.km-calc::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--km-calc-gradient);
    border-radius: var(--km-calc-radius) var(--km-calc-radius) 0 0;
}

.km-calc *,
.km-calc *::before,
.km-calc *::after {
    box-sizing: border-box;
}

/* -----------------------------------------------------------------------------
   Header
   ----------------------------------------------------------------------------- */

.km-calc-header {
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--km-calc-border);
}

.km-calc-title {
    font-size: 1.4375rem;
    font-weight: 700;
    margin: 0 0 0.375rem;
    color: var(--km-calc-text);
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.km-calc-subtitle {
    font-size: 0.9375rem;
    color: var(--km-calc-text-muted);
    margin: 0;
    line-height: 1.55;
}

/* -----------------------------------------------------------------------------
   Layout — wide screens: inputs left, results right
   ----------------------------------------------------------------------------- */

.km-calc--full .km-calc-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .km-calc--full .km-calc-body {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
        gap: 1.5rem 2.5rem;
        align-items: start;
    }

    .km-calc--full .km-calc-inputs-section {
        grid-column: 1;
        grid-row: 1;
    }

    .km-calc--full .km-calc-actions {
        grid-column: 1;
        grid-row: 2;
    }

    .km-calc--full .km-calc-results {
        grid-column: 2;
        grid-row: 1 / span 3;
    }
}

/* -----------------------------------------------------------------------------
   Input Groups
   ----------------------------------------------------------------------------- */

.km-calc-input-group {
    margin-bottom: 1.125rem;
}

.km-calc-label {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--km-calc-text);
    margin-bottom: 0.4375rem;
    line-height: 1.4;
}

.km-calc-input,
.km-calc-select {
    display: block;
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 1rem;
    color: var(--km-calc-text);
    background: var(--km-calc-bg-input);
    border: 1.5px solid var(--km-calc-border);
    border-radius: var(--km-calc-radius-sm);
    outline: none;
    transition:
        border-color var(--km-calc-transition),
        box-shadow var(--km-calc-transition),
        transform var(--km-calc-transition);
    appearance: none;
    -webkit-appearance: none;
}

.km-calc-input:hover,
.km-calc-select:hover {
    border-color: #cbd5e1;
}

.km-calc-input:focus,
.km-calc-select:focus {
    border-color: var(--km-calc-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.20);
    transform: translateY(-1px);
}

.km-calc-input::placeholder {
    color: var(--km-calc-text-light);
}

.km-calc-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

/* Currency / number inputs — right-aligned */
.km-calc-input--currency,
.km-calc-input--number,
.km-calc-input--percent {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

/* Input error state */
.km-calc-input--error,
.km-calc-select--error {
    border-color: var(--km-calc-poor) !important;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1) !important;
    animation: km-shake 0.35s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

@keyframes km-shake {
    0%, 100% { transform: translateX(0); }
    20%       { transform: translateX(-5px); }
    40%       { transform: translateX(5px); }
    60%       { transform: translateX(-4px); }
    80%       { transform: translateX(4px); }
}

.km-calc-field-error {
    display: block;
    margin-top: 0.3125rem;
    font-size: 0.8125rem;
    color: var(--km-calc-poor);
    line-height: 1.4;
    animation: km-fade-in 0.15s ease;
}

/* Clear error on interaction */
.km-calc-input:not(.km-calc-input--error):focus + .km-calc-field-error,
.km-calc-input:not(.km-calc-input--error) ~ .km-calc-field-error {
    display: none;
}

/* -----------------------------------------------------------------------------
   Info icon + tooltip system
   ----------------------------------------------------------------------------- */

.km-calc-info-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 1.5px solid var(--km-calc-text-light);
    background: transparent;
    color: var(--km-calc-text-light);
    font-size: 0.6875rem;
    font-weight: 700;
    font-style: italic;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
    transition: border-color var(--km-calc-transition), color var(--km-calc-transition), background var(--km-calc-transition);
    position: relative;
}

.km-calc-info-btn:hover,
.km-calc-info-btn:focus {
    border-color: var(--km-calc-primary);
    color: var(--km-calc-primary);
    background: var(--km-calc-good-bg);
    outline: none;
}

.km-calc-tooltip-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.km-calc-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: #1e293b;
    color: #f9fafb;
    font-size: 0.8125rem;
    font-weight: 400;
    line-height: 1.5;
    padding: 0.5rem 0.75rem;
    border-radius: var(--km-calc-radius-xs);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    white-space: normal;
    min-width: 200px;
    max-width: 280px;
    z-index: 100;
    pointer-events: none;
    opacity: 0;
    transform: translateX(-50%) translateY(4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.km-calc-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: #1e293b;
}

.km-calc-tooltip-wrap:hover .km-calc-tooltip,
.km-calc-tooltip-wrap.km-tooltip--open .km-calc-tooltip,
.km-calc-info-btn:focus + .km-calc-tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

/* Edge-case: tooltip near left edge */
.km-calc-tooltip--left {
    left: 0;
    transform: translateX(0) translateY(4px);
}
.km-calc-tooltip--left::after {
    left: 10px;
    transform: none;
}
.km-calc-tooltip-wrap:hover .km-calc-tooltip--left,
.km-calc-tooltip-wrap.km-tooltip--open .km-calc-tooltip--left {
    transform: translateX(0) translateY(0);
}

/* Edge-case: tooltip near right edge */
.km-calc-tooltip--right {
    left: auto;
    right: 0;
    transform: translateX(0) translateY(4px);
}
.km-calc-tooltip--right::after {
    left: auto;
    right: 10px;
    transform: none;
}
.km-calc-tooltip-wrap:hover .km-calc-tooltip--right,
.km-calc-tooltip-wrap.km-tooltip--open .km-calc-tooltip--right {
    transform: translateX(0) translateY(0);
}

/* -----------------------------------------------------------------------------
   Multi-row product lines
   ----------------------------------------------------------------------------- */

.km-calc-row {
    background: var(--km-calc-bg);
    border: 1px solid var(--km-calc-border);
    border-radius: var(--km-calc-radius);
    padding: 1rem 1rem 0.25rem;
    margin-bottom: 0.875rem;
    position: relative;
    transition: border-color var(--km-calc-transition), box-shadow var(--km-calc-transition);
}

.km-calc-row:hover {
    border-color: #cbd5e1;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.km-calc-row-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.875rem;
}

.km-calc-row-label {
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--km-calc-good);
}

.km-calc-row-remove {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--km-calc-text-light);
    font-size: 1.125rem;
    line-height: 1;
    padding: 2px 4px;
    border-radius: 4px;
    transition: color var(--km-calc-transition), background var(--km-calc-transition);
}

.km-calc-row-remove:hover {
    color: var(--km-calc-poor);
    background: var(--km-calc-poor-bg);
}

.km-calc-shared-inputs {
    margin-top: 0.5rem;
}

.km-calc-add-row-wrap {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    margin-top: 0.5rem;
}

.km-calc-row-count {
    font-size: 0.8125rem;
    color: var(--km-calc-text-muted);
}

/* -----------------------------------------------------------------------------
   Buttons
   ----------------------------------------------------------------------------- */

.km-calc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.375rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--km-calc-radius-sm);
    border: 1.5px solid transparent;
    cursor: pointer;
    transition:
        background var(--km-calc-transition),
        color var(--km-calc-transition),
        border-color var(--km-calc-transition),
        box-shadow var(--km-calc-transition),
        transform var(--km-calc-transition);
    line-height: 1.25;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    will-change: transform;
}

.km-calc-btn:active {
    transform: translateY(1px);
}

.km-calc-btn--primary {
    background: var(--km-calc-gradient);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 1px 3px rgba(16, 185, 129, 0.25);
}

.km-calc-btn--primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #047857, #0f766e);
    border-color: transparent;
    box-shadow: var(--km-calc-shadow-primary);
    transform: translateY(-1px);
}

.km-calc-btn--primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Loading state */
.km-calc-btn--loading {
    pointer-events: none;
}

.km-calc-btn--loading::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: km-spin 0.6s linear infinite;
    flex-shrink: 0;
}

@keyframes km-spin {
    to { transform: rotate(360deg); }
}

.km-calc-btn--ghost {
    background: transparent;
    color: var(--km-calc-text-muted);
    border-color: var(--km-calc-border);
}

.km-calc-btn--ghost:hover {
    background: var(--km-calc-bg);
    color: var(--km-calc-text);
    border-color: #cbd5e1;
}

.km-calc-btn--secondary {
    background: transparent;
    color: var(--km-calc-primary);
    border-color: var(--km-calc-primary);
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
}

.km-calc-btn--secondary:hover {
    background: rgba(16, 185, 129, 0.06);
    box-shadow: none;
}

.km-calc-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* -----------------------------------------------------------------------------
   Results section
   ----------------------------------------------------------------------------- */

.km-calc-results {
    /* Populated by JS animations; initial state handled by JS */
}

@keyframes km-fade-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes km-card-pop {
    0%   { opacity: 0; transform: scale(0.97) translateY(4px); }
    60%  { opacity: 1; transform: scale(1.01) translateY(0); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

.km-result-card--entering {
    opacity: 0;
    transform: scale(0.97) translateY(4px);
}

.km-result-card--visible {
    animation: km-card-pop 0.28s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    will-change: transform, opacity;
}

.km-calc-result-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

@media (max-width: 480px) {
    .km-calc-result-cards {
        grid-template-columns: 1fr;
    }
}

/* Hero card — spans full width, primary metric */
.km-calc-result-card--hero {
    grid-column: 1 / -1;
    text-align: center;
    padding: 1.375rem 1.25rem;
    background: var(--km-calc-bg-cta);
}

.km-calc-result-card--hero .km-calc-result-value {
    font-size: 2.5rem;
    letter-spacing: -0.03em;
}

.km-calc-result-card--hero .km-calc-result-label {
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

/* Result card */
.km-calc-result-card {
    background: var(--km-calc-bg);
    border: 1px solid var(--km-calc-border);
    border-left: 3px solid var(--km-calc-border);
    border-radius: var(--km-calc-radius-sm);
    padding: 0.875rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    transition:
        border-color var(--km-calc-transition),
        background var(--km-calc-transition),
        box-shadow var(--km-calc-transition);
}

.km-calc-result-card.km-result--good {
    border-left-color: var(--km-calc-good-border);
    background: var(--km-calc-good-bg);
}

.km-calc-result-card.km-result--average {
    border-left-color: var(--km-calc-average-border);
    background: var(--km-calc-average-bg);
}

.km-calc-result-card.km-result--poor {
    border-left-color: var(--km-calc-poor-border);
    background: var(--km-calc-poor-bg);
}

.km-calc-result-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--km-calc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.km-calc-result-value {
    font-size: 1.625rem;
    font-weight: 700;
    color: var(--km-calc-text);
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* Animated counter wrapper — keeps EUR symbol static */
.km-calc-value-prefix {
    font-size: inherit;
    font-weight: inherit;
    color: inherit;
}

.km-calc-value-animated {
    display: inline-block;
}

/* -----------------------------------------------------------------------------
   Comparison table (multi-product)
   ----------------------------------------------------------------------------- */

.km-calc-comparison {
    margin-bottom: 1.25rem;
}

.km-calc-comparison-title,
.km-calc-benchmark-title {
    font-size: 0.9375rem;
    font-weight: 700;
    margin: 0 0 0.75rem;
    color: var(--km-calc-text);
    letter-spacing: -0.01em;
}

.km-calc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.km-calc-table th,
.km-calc-table td {
    padding: 0.5625rem 0.875rem;
    text-align: right;
    border-bottom: 1px solid var(--km-calc-border);
}

.km-calc-table th:first-child,
.km-calc-table td:first-child {
    text-align: left;
}

.km-calc-table th {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--km-calc-text-muted);
    background: var(--km-calc-bg);
}

.km-calc-table tfoot td {
    font-weight: 700;
    border-top: 2px solid var(--km-calc-border);
    border-bottom: none;
}

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

/* Color-code margin cells */
.km-margin--good  { color: var(--km-calc-good);    font-weight: 700; }
.km-margin--avg   { color: var(--km-calc-average); font-weight: 700; }
.km-margin--poor  { color: var(--km-calc-poor);    font-weight: 700; }

/* -----------------------------------------------------------------------------
   Benchmark bar
   ----------------------------------------------------------------------------- */

.km-calc-benchmark-wrap-outer {
    margin-bottom: 1.375rem;
}

.km-calc-benchmark-wrap {
    position: relative;
}

.km-calc-benchmark-bar {
    display: flex;
    height: 28px;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* Gradient blend across segments */
.km-calc-bm-segment {
    flex: 1;
    position: relative;
}

.km-calc-bm--poor {
    background: linear-gradient(to right, #fca5a5, #fdba74);
}

.km-calc-bm--average {
    background: linear-gradient(to right, #fdba74, #fde68a);
}

.km-calc-bm--good {
    background: linear-gradient(to right, #fde68a, #6ee7b7);
}

/* "You are here" marker */
.km-calc-bm-marker {
    position: absolute;
    top: -10px;
    width: 4px;
    height: calc(100% + 20px);
    background: #1e293b;
    border-radius: 4px;
    transform: translateX(-50%);
    pointer-events: auto;
    transition: left 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    z-index: 2;
}

.km-calc-bm-marker-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #1e293b;
    border: 2px solid #ffffff;
    box-shadow: 0 0 0 2px #1e293b;
}

/* Marker enters with a pulse */
@keyframes km-marker-appear {
    0%   { transform: translateX(-50%) scaleY(0.4); opacity: 0; }
    60%  { transform: translateX(-50%) scaleY(1.1); opacity: 1; }
    100% { transform: translateX(-50%) scaleY(1);   opacity: 1; }
}

.km-calc-bm-marker--entering {
    animation: km-marker-appear 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    will-change: transform, opacity;
}

/* Marker tooltip */
.km-calc-bm-marker-label {
    position: absolute;
    top: -28px;
    left: 50%;
    transform: translateX(-50%);
    background: #1e293b;
    color: #f9fafb;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 4px;
    white-space: nowrap;
    pointer-events: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}

.km-calc-bm-marker-label::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 4px solid transparent;
    border-top-color: #1e293b;
}

/* Benchmark row labels below the bar */
.km-calc-bm-scale {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--km-calc-text-muted);
}

.km-calc-bm-scale-label {
    text-align: center;
}

.km-calc-bm-scale-label:first-child {
    text-align: left;
}

.km-calc-bm-scale-label:last-child {
    text-align: right;
}

.km-calc-bm-scale-name {
    display: block;
    font-weight: 600;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--km-calc-text-light);
}

.km-calc-bm-scale-val {
    display: block;
    font-variant-numeric: tabular-nums;
}

/* Keep the old legend as fallback / simpler variant */
.km-calc-bm-legend {
    display: flex;
    justify-content: space-between;
    margin-top: 0.375rem;
    font-size: 0.75rem;
    color: var(--km-calc-text-muted);
}

.km-calc-benchmark-caption {
    margin: 0.75rem 0 0;
    font-size: 0.8125rem;
    color: var(--km-calc-text-muted);
    line-height: 1.5;
}

/* -----------------------------------------------------------------------------
   Verdict / Insight block
   ----------------------------------------------------------------------------- */

.km-calc-verdict {
    background: #f0fdfa;
    border: 1px solid #ccfbf1;
    border-left: 3px solid var(--km-calc-border-accent);
    border-radius: 0 var(--km-calc-radius-sm) var(--km-calc-radius-sm) 0;
    padding: 1rem 1.125rem;
    animation: km-fade-in 0.3s ease;
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.km-calc-verdict-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 1px;
    opacity: 0.7;
    color: var(--km-calc-primary);
}

.km-calc-verdict-body {
    flex: 1;
    min-width: 0;
}

.km-calc-verdict-text {
    margin: 0;
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--km-calc-text-body);
}

/* Key numbers within verdict — colored inline */
.km-calc-verdict-text .km-num--good    { color: var(--km-calc-good);    font-weight: 700; }
.km-calc-verdict-text .km-num--poor    { color: var(--km-calc-poor);    font-weight: 700; }
.km-calc-verdict-text .km-num--neutral { color: var(--km-calc-primary); font-weight: 700; }

/* Verdict bullet list */
.km-calc-verdict-list {
    margin: 0.5rem 0 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.km-calc-verdict-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--km-calc-text-body);
}

.km-calc-verdict-list li::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--km-calc-primary);
    flex-shrink: 0;
    margin-top: 0.45em;
}

/* -----------------------------------------------------------------------------
   Footer
   ----------------------------------------------------------------------------- */

.km-calc-footer {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--km-calc-border);
    font-size: 0.875rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Related post link as a card */
.km-calc-related-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--km-calc-bg);
    border: 1px solid var(--km-calc-border);
    border-radius: var(--km-calc-radius-sm);
    text-decoration: none;
    color: var(--km-calc-text);
    transition:
        border-color var(--km-calc-transition),
        box-shadow var(--km-calc-transition),
        transform var(--km-calc-transition);
}

.km-calc-related-card:hover {
    border-color: var(--km-calc-primary);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.12);
    transform: translateY(-1px);
}

.km-calc-related-card-icon {
    width: 18px;
    height: 18px;
    color: var(--km-calc-primary);
    flex-shrink: 0;
}

.km-calc-related-card-text {
    flex: 1;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--km-calc-primary);
}

.km-calc-related-card-arrow {
    color: var(--km-calc-text-light);
    font-size: 0.875rem;
}

/* Other calculators section */
.km-calc-other-calcs {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.km-calc-other-calcs-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--km-calc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.km-calc-other-calcs-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* "Try another calculator" filter-button style */
.km-calc-other-link {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--km-calc-text-body);
    background: #ffffff;
    border: 1px solid var(--km-calc-border);
    border-radius: 20px;
    text-decoration: none;
    transition:
        color var(--km-calc-transition),
        background var(--km-calc-transition),
        border-color var(--km-calc-transition),
        box-shadow var(--km-calc-transition);
}

.km-calc-other-link:hover {
    color: var(--km-calc-primary);
    border-color: var(--km-calc-good-border);
    background: var(--km-calc-good-bg);
    box-shadow: 0 1px 4px rgba(16, 185, 129, 0.12);
}

/* Copy link micro-CTA */
.km-calc-share-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.km-calc-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--km-calc-text-muted);
    background: transparent;
    border: 1px solid var(--km-calc-border);
    border-radius: 20px;
    cursor: pointer;
    transition: color var(--km-calc-transition), border-color var(--km-calc-transition), background var(--km-calc-transition);
}

.km-calc-share-btn:hover {
    color: var(--km-calc-text);
    border-color: #cbd5e1;
    background: var(--km-calc-bg);
}

.km-calc-share-btn--copied {
    color: var(--km-calc-good);
    border-color: var(--km-calc-good-border);
    background: var(--km-calc-good-bg);
}

/* Legacy related-link (plain text fallback) */
.km-calc-related-link {
    color: var(--km-calc-primary);
    text-decoration: none;
    font-weight: 500;
}

.km-calc-related-link:hover {
    text-decoration: underline;
    text-decoration-color: #99f6e4;
}

/* -----------------------------------------------------------------------------
   Error state
   ----------------------------------------------------------------------------- */

.km-calc-error {
    padding: 0.875rem 1rem;
    background: var(--km-calc-poor-bg);
    border: 1px solid var(--km-calc-poor-border);
    border-left: 3px solid var(--km-calc-poor);
    border-radius: 0 var(--km-calc-radius-sm) var(--km-calc-radius-sm) 0;
    color: #991b1b;
    font-size: 0.9375rem;
    margin: 1rem 0;
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    animation: km-fade-in 0.2s ease;
}

/* -----------------------------------------------------------------------------
   Responsive
   ----------------------------------------------------------------------------- */

@media (max-width: 600px) {
    .km-calc {
        padding: 1.25rem;
    }

    .km-calc-title {
        font-size: 1.1875rem;
    }

    .km-calc-result-value {
        font-size: 1.375rem;
    }

    .km-calc-result-card--hero .km-calc-result-value {
        font-size: 2rem;
    }

    .km-calc-input,
    .km-calc-select {
        font-size: 16px; /* prevents iOS auto-zoom */
        min-height: 44px;
    }

    .km-calc-btn--primary {
        width: 100%;
        min-height: 44px;
        font-size: 1rem;
    }

    .km-calc-actions {
        flex-direction: column;
    }

    .km-calc-footer {
        gap: 0.875rem;
    }

    .km-calc-tooltip {
        min-width: 160px;
        max-width: 240px;
    }
}

/* =============================================================================
   Phase 2 — Additional styles for new calculator types
   ============================================================================= */

/* -----------------------------------------------------------------------------
   Input suffix (e.g. "days" label after a number input)
   ----------------------------------------------------------------------------- */

.km-calc-input-suffix-wrap {
    display: flex;
    align-items: stretch;
    gap: 0;
    position: relative;
}

.km-calc-input-suffix-wrap .km-calc-input {
    border-radius: var(--km-calc-radius-sm) 0 0 var(--km-calc-radius-sm);
    border-right: none;
    flex: 1;
    min-width: 0;
}

.km-calc-input-suffix {
    display: inline-flex;
    align-items: center;
    padding: 0.625rem 0.75rem;
    background: var(--km-calc-bg);
    border: 1.5px solid var(--km-calc-border);
    border-left: none;
    border-radius: 0 var(--km-calc-radius-sm) var(--km-calc-radius-sm) 0;
    font-size: 0.875rem;
    color: var(--km-calc-text-muted);
    white-space: nowrap;
    flex-shrink: 0;
    transition: border-color var(--km-calc-transition);
}

.km-calc-input-suffix-wrap:focus-within .km-calc-input {
    border-color: var(--km-calc-primary);
}

.km-calc-input-suffix-wrap:focus-within .km-calc-input-suffix {
    border-color: var(--km-calc-primary);
}

/* =============================================================================
   Phase 3 — Sticky features: sample data, URL sharing, result card, comparison
   ============================================================================= */

/* -----------------------------------------------------------------------------
   Header row (title + sample data button side by side)
   ----------------------------------------------------------------------------- */

.km-calc-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.375rem;
}

.km-calc-header-row .km-calc-title {
    margin-bottom: 0;
}

/* -----------------------------------------------------------------------------
   "Try with sample data" button
   ----------------------------------------------------------------------------- */

.km-calc-btn--sample {
    background: transparent;
    color: var(--km-calc-text-muted);
    border: 1.5px solid var(--km-calc-border);
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    white-space: nowrap;
    flex-shrink: 0;
    align-self: center;
}

.km-calc-btn--sample:hover {
    color: var(--km-calc-text);
    border-color: #cbd5e1;
    background: var(--km-calc-bg);
}

/* -----------------------------------------------------------------------------
   Sample data banner (shown inside results after clicking "Try with sample data")
   ----------------------------------------------------------------------------- */

.km-calc-sample-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    background: var(--km-calc-average-bg);
    border: 1px solid var(--km-calc-average-border);
    border-left: 3px solid var(--km-calc-average);
    border-radius: 0 var(--km-calc-radius-xs) var(--km-calc-radius-xs) 0;
    padding: 0.625rem 0.875rem;
    margin-bottom: 1rem;
    animation: km-fade-in 0.2s ease;
}

.km-calc-sample-banner-text {
    font-size: 0.8125rem;
    color: #92400e;
    line-height: 1.45;
}

.km-calc-sample-banner-dismiss {
    background: none;
    border: none;
    cursor: pointer;
    color: #92400e;
    font-size: 1.125rem;
    line-height: 1;
    padding: 0 2px;
    opacity: 0.65;
    flex-shrink: 0;
}

.km-calc-sample-banner-dismiss:hover {
    opacity: 1;
}

/* -----------------------------------------------------------------------------
   Shareable result summary card
   ----------------------------------------------------------------------------- */

.km-calc-result-summary-card {
    position: relative;
    background: var(--km-calc-bg-card);
    border: 1px solid var(--km-calc-border);
    border-radius: var(--km-calc-radius-sm);
    max-width: 520px;
    padding: 1.375rem 1.5rem 2rem;
    margin-bottom: 1.25rem;
    animation: km-fade-in 0.3s ease;
}

.km-calc-summary-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--km-calc-border);
}

.km-calc-summary-title {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--km-calc-text);
    letter-spacing: -0.01em;
}

.km-calc-summary-date {
    font-size: 0.8125rem;
    color: var(--km-calc-text-light);
    white-space: nowrap;
    flex-shrink: 0;
}

.km-calc-summary-metrics {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.875rem;
    flex-wrap: wrap;
}

.km-calc-summary-metric {
    flex: 1;
    min-width: 100px;
    display: flex;
    flex-direction: column;
    gap: 0.1875rem;
}

.km-calc-summary-metric-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--km-calc-text-muted);
}

.km-calc-summary-metric-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--km-calc-text);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}

.km-calc-summary-verdict {
    font-size: 0.875rem;
    color: var(--km-calc-text-body);
    font-style: italic;
    line-height: 1.55;
    padding-top: 0.75rem;
    border-top: 1px solid var(--km-calc-border);
}

.km-calc-summary-watermark {
    position: absolute;
    bottom: 0.5rem;
    right: 0.875rem;
    font-size: 0.6875rem;
    color: var(--km-calc-text-light);
    letter-spacing: 0.02em;
}

/* -----------------------------------------------------------------------------
   Results share row (share link + copy results)
   ----------------------------------------------------------------------------- */

.km-calc-results-share-row {
    margin-top: 1rem;
    padding-top: 0.875rem;
    border-top: 1px solid var(--km-calc-border);
}

.km-calc-share-btn--icon {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.km-calc-share-btn--icon svg {
    flex-shrink: 0;
}

/* -----------------------------------------------------------------------------
   Comparison mode toggle
   ----------------------------------------------------------------------------- */

.km-calc-comparison-toggle-wrap {
    margin-top: 0.75rem;
    padding-top: 0.875rem;
    border-top: 1px solid var(--km-calc-border);
}

.km-calc-comparison-toggle-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--km-calc-text-muted);
    cursor: pointer;
    user-select: none;
}

.km-calc-comparison-toggle {
    width: 16px;
    height: 16px;
    accent-color: var(--km-calc-primary);
    cursor: pointer;
    flex-shrink: 0;
}

/* Previous period inputs section */
.km-calc-prev-inputs {
    margin-top: 0.875rem;
    background: #f8fafc;
    border: 1px solid var(--km-calc-border);
    border-radius: var(--km-calc-radius-sm);
    padding: 1rem 1rem 0.25rem;
    animation: km-fade-in 0.2s ease;
}

.km-calc-prev-inputs-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--km-calc-text-muted);
    margin-bottom: 0.875rem;
}

/* -----------------------------------------------------------------------------
   Comparison results section
   ----------------------------------------------------------------------------- */

.km-calc-comparison-results {
    margin-top: 1.25rem;
    animation: km-fade-in 0.25s ease;
}

.km-calc-comparison-results-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--km-calc-text);
    margin: 0 0 0.75rem;
    letter-spacing: -0.01em;
}

.km-calc-comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0.5rem;
}

.km-calc-comparison-col-header {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--km-calc-text-muted);
    padding: 0 0.75rem 0.375rem;
}

.km-calc-comparison-cell {
    background: var(--km-calc-bg);
    border: 1px solid var(--km-calc-border);
    border-radius: var(--km-calc-radius-xs);
    padding: 0.625rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.km-calc-comparison-cell-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--km-calc-text-muted);
}

.km-calc-comparison-cell-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--km-calc-text);
    font-variant-numeric: tabular-nums;
}

/* Delta column */
.km-calc-comparison-cell--delta {
    border-color: transparent;
    background: transparent;
    justify-content: center;
}

.km-calc-delta {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.km-calc-delta--improved {
    color: var(--km-calc-good);
}

.km-calc-delta--worsened {
    color: var(--km-calc-poor);
}

.km-calc-delta--neutral {
    color: var(--km-calc-text-muted);
}

.km-calc-delta-arrow {
    font-size: 0.75rem;
}

@media (max-width: 480px) {
    .km-calc-comparison-grid {
        grid-template-columns: 1fr 1fr;
    }
    .km-calc-comparison-cell--delta {
        grid-column: 1 / -1;
        background: var(--km-calc-bg);
        border: 1px solid var(--km-calc-border);
        border-radius: var(--km-calc-radius-xs);
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: 0.5rem;
    }
    .km-calc-summary-metrics {
        flex-direction: column;
    }
    .km-calc-header-row {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* -----------------------------------------------------------------------------
   Help text (legacy plain-text, below inputs)
   ----------------------------------------------------------------------------- */

.km-calc-input-help {
    display: block;
    margin-top: 0.3125rem;
    font-size: 0.8125rem;
    color: var(--km-calc-text-muted);
    line-height: 1.45;
}

/* -----------------------------------------------------------------------------
   Result card format variants
   ----------------------------------------------------------------------------- */

.km-calc-result--days .km-calc-result-value,
.km-calc-result--units .km-calc-result-value,
.km-calc-result--number .km-calc-result-value {
    font-size: 1.5rem;
}

.km-calc-result--currency_and_percent .km-calc-result-value {
    font-size: 1.25rem;
    line-height: 1.35;
}

.km-calc-result--text-inline {
    grid-column: 1 / -1;
}

.km-calc-result--text .km-calc-result-value {
    font-size: 0.9375rem;
    font-weight: 400;
    line-height: 1.55;
    color: var(--km-calc-text);
}

.km-calc-result-cards .km-calc-result--text {
    grid-column: 1 / -1;
}

/* -----------------------------------------------------------------------------
   Working capital — hero metric sizing
   ----------------------------------------------------------------------------- */

[data-result="ccc"] .km-calc-result-value,
[data-result="dso"] .km-calc-result-value,
[data-result="dpo"] .km-calc-result-value {
    font-size: 1.875rem;
}

/* -----------------------------------------------------------------------------
   Multi-row table variants
   ----------------------------------------------------------------------------- */

.km-calc-table td.km-turnover--good  { color: var(--km-calc-good);    font-weight: 700; }
.km-calc-table td.km-turnover--avg   { color: var(--km-calc-average); font-weight: 700; }
.km-calc-table td.km-turnover--poor  { color: var(--km-calc-poor);    font-weight: 700; }

/* -----------------------------------------------------------------------------
   Benchmark bar DSO (inverted) label order
   ----------------------------------------------------------------------------- */

.km-calc-benchmark-wrap[data-benchmark-for="dso"] .km-calc-bm-legend-poor {
    order: 3;
}

.km-calc-benchmark-wrap[data-benchmark-for="dso"] .km-calc-bm-legend-avg {
    order: 2;
}

.km-calc-benchmark-wrap[data-benchmark-for="dso"] .km-calc-bm-legend-good {
    order: 1;
}

/* =============================================================================
   Print styles
   ============================================================================= */

@media print {
    .km-calc {
        border: 1px solid #ccc;
        border-top: 2px solid #059669;
        box-shadow: none;
        padding: 1rem;
    }

    .km-calc::before {
        display: none;
    }

    .km-calc-inputs-section,
    .km-calc-actions,
    .km-calc-btn,
    .km-calc-info-btn,
    .km-calc-tooltip,
    .km-calc-footer,
    .km-calc-add-row-wrap,
    .km-calc-row-remove {
        display: none !important;
    }

    .km-calc--full .km-calc-body {
        display: block;
    }

    .km-calc-results {
        display: block !important;
    }

    .km-calc-result-cards {
        grid-template-columns: 1fr 1fr;
    }

    .km-calc-result-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .km-calc-verdict {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}