/* =====================================================
   Kitaversum ROI- / Zeitersparnis-Rechner
   Wiederverwendbares Modul fuer pricing.html, traeger.html etc.
   ===================================================== */

.kv-roi {
    --kv-roi-primary: #E53E3E;
    --kv-roi-primary-dark: #b92d2d;
    --kv-roi-accent: #2d8a3e;
    --kv-roi-bg: #ffffff;
    --kv-roi-soft: #fff5f5;
    --kv-roi-border: #eaeaea;
    --kv-roi-text: #1a1a1a;
    --kv-roi-muted: #5a6473;
    --kv-roi-radius: 18px;
    --kv-roi-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    font-family: 'Nunito', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--kv-roi-text);
    padding: 4rem 1.25rem;
    background: linear-gradient(180deg, #fff8f8 0%, #ffffff 100%);
    /* Schutz vor globalen Layout-Regeln (z.B. fixed Site-Header) */
    position: relative;
    width: 100%;
    box-sizing: border-box;
    isolation: isolate;
}

/* Defensiv: falls innerhalb des Moduls jemals wieder ein <header>
   verwendet wird, neutralisieren wir die globale `header { position: fixed }`
   Regel aus styles.css, damit der Rechner-Header nicht ueber der Seite klebt. */
.kv-roi header,
.kv-roi .kv-roi__header {
    position: static;
    width: auto;
    top: auto;
    left: auto;
    right: auto;
    z-index: auto;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.kv-roi__inner {
    max-width: 1180px;
    margin: 0 auto;
}

.kv-roi__header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.kv-roi__badge {
    display: inline-block;
    background: var(--kv-roi-soft);
    color: var(--kv-roi-primary);
    padding: 0.4rem 1rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.kv-roi__title {
    font-size: clamp(1.75rem, 3.2vw, 2.5rem);
    font-weight: 800;
    margin: 0 0 0.75rem 0;
    line-height: 1.2;
    color: var(--kv-roi-text);
}

.kv-roi__title .kv-roi__hl {
    color: var(--kv-roi-primary);
}

.kv-roi__subtitle {
    color: var(--kv-roi-muted);
    font-size: 1.05rem;
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.55;
}

/* ---- Layout ---- */
.kv-roi__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 1.75rem;
    align-items: stretch;
}

@media (max-width: 880px) {
    .kv-roi__grid {
        grid-template-columns: 1fr;
    }
    .kv-roi {
        padding: 2.5rem 1rem;
    }
}

/* ---- Inputs Card ---- */
.kv-roi__card {
    background: var(--kv-roi-bg);
    border: 1px solid var(--kv-roi-border);
    border-radius: var(--kv-roi-radius);
    box-shadow: var(--kv-roi-shadow);
    padding: 2rem;
}

.kv-roi__card-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0 0 1.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.kv-roi__card-title i {
    color: var(--kv-roi-primary);
}

.kv-roi__field {
    margin-bottom: 1.4rem;
}

.kv-roi__field:last-child {
    margin-bottom: 0;
}

.kv-roi__label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--kv-roi-text);
}

.kv-roi__label-help {
    color: var(--kv-roi-muted);
    font-size: 0.8rem;
    font-weight: 500;
}

.kv-roi__input-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.kv-roi__range {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 8px;
    background: linear-gradient(to right, var(--kv-roi-primary) 0%, var(--kv-roi-primary) var(--kv-roi-fill, 30%), #f1d6d6 var(--kv-roi-fill, 30%), #f1d6d6 100%);
    border-radius: 8px;
    outline: none;
    cursor: pointer;
}

.kv-roi__range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--kv-roi-primary);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(229, 62, 62, 0.3);
    transition: transform 0.15s ease;
}

.kv-roi__range::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.kv-roi__range::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--kv-roi-primary);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(229, 62, 62, 0.3);
}

.kv-roi__number {
    width: 90px;
    padding: 0.55rem 0.6rem;
    border: 1.5px solid var(--kv-roi-border);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    font-family: inherit;
    text-align: center;
    color: var(--kv-roi-text);
    background: #fff;
    transition: border-color 0.15s ease;
    -moz-appearance: textfield;
}

.kv-roi__number::-webkit-outer-spin-button,
.kv-roi__number::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.kv-roi__number:focus {
    outline: none;
    border-color: var(--kv-roi-primary);
    box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.12);
}

.kv-roi__unit {
    color: var(--kv-roi-muted);
    font-size: 0.9rem;
    font-weight: 600;
    min-width: 70px;
}

.kv-roi__field-hint {
    margin: 0.4rem 0 0 0;
    font-size: 0.8rem;
    color: var(--kv-roi-muted);
}

.kv-roi__separator {
    height: 1px;
    background: var(--kv-roi-border);
    margin: 1.5rem 0;
}

.kv-roi__assumption {
    background: #f8fafc;
    border-radius: 10px;
    padding: 0.85rem 1rem;
    font-size: 0.85rem;
    color: var(--kv-roi-muted);
    line-height: 1.5;
    margin-top: 1.25rem;
    border-left: 3px solid var(--kv-roi-accent);
}

.kv-roi__assumption strong {
    color: var(--kv-roi-text);
}

/* ---- Result Card ---- */
.kv-roi__result {
    background: linear-gradient(135deg, #1e3a5f 0%, #243f5f 100%);
    color: #fff;
    border-radius: var(--kv-roi-radius);
    padding: 2rem;
    box-shadow: 0 18px 50px rgba(30, 58, 95, 0.25);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: relative;
    overflow: hidden;
}

.kv-roi__result::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(255, 209, 102, 0.18) 0%, transparent 70%);
    pointer-events: none;
}

.kv-roi__result-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.kv-roi__result-headline {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    margin: 0;
    line-height: 1.2;
}

.kv-roi__result-headline .kv-roi__hl-result {
    color: #FFD166;
}

.kv-roi__metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.kv-roi__metric {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem;
    backdrop-filter: blur(4px);
}

.kv-roi__metric-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.65);
    margin: 0 0 0.35rem 0;
    font-weight: 700;
}

.kv-roi__metric-value {
    font-size: 1.4rem;
    font-weight: 800;
    margin: 0;
    line-height: 1.1;
}

.kv-roi__metric-value small {
    font-size: 0.7rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    margin-left: 0.25rem;
    text-transform: uppercase;
}

.kv-roi__metric--highlight {
    background: linear-gradient(135deg, rgba(255, 209, 102, 0.18) 0%, rgba(229, 62, 62, 0.15) 100%);
    border-color: rgba(255, 209, 102, 0.4);
}

.kv-roi__metric--highlight .kv-roi__metric-value {
    color: #FFD166;
    font-size: 1.6rem;
}

.kv-roi__breakdown {
    background: rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    padding: 0.9rem 1rem;
    font-size: 0.85rem;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.85);
}

.kv-roi__breakdown-row {
    display: flex;
    justify-content: space-between;
    padding: 0.2rem 0;
}

.kv-roi__breakdown-row + .kv-roi__breakdown-row {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 0.2rem;
    padding-top: 0.4rem;
}

.kv-roi__breakdown-row strong {
    color: #FFD166;
}

.kv-roi__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.kv-roi__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.5rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    border: none;
    cursor: pointer;
    font-family: inherit;
    flex: 1 1 180px;
}

.kv-roi__btn--primary {
    background: var(--kv-roi-primary);
    color: #fff;
    box-shadow: 0 6px 18px rgba(229, 62, 62, 0.4);
}

.kv-roi__btn--primary:hover {
    background: var(--kv-roi-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(229, 62, 62, 0.5);
}

.kv-roi__btn--ghost {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.25);
}

.kv-roi__btn--ghost:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.kv-roi__disclaimer {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.55);
    margin: 0.5rem 0 0 0;
    line-height: 1.45;
}

/* Number formatter helper */
.kv-roi__num {
    font-variant-numeric: tabular-nums;
}

/* ---- SEO / Methodik Block ---- */
.kv-roi__methodology {
    margin-top: 3rem;
    background: #fff;
    border: 1px solid var(--kv-roi-border);
    border-radius: var(--kv-roi-radius);
    padding: 2rem;
    box-shadow: var(--kv-roi-shadow);
}

.kv-roi__methodology h3 {
    font-size: 1.25rem;
    margin: 0 0 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--kv-roi-text);
}

.kv-roi__methodology h3 i {
    color: var(--kv-roi-primary);
}

.kv-roi__methodology h4 {
    font-size: 1rem;
    margin: 1.25rem 0 0.5rem 0;
    color: var(--kv-roi-text);
}

.kv-roi__methodology p {
    color: var(--kv-roi-muted);
    line-height: 1.65;
    margin: 0 0 0.75rem 0;
    font-size: 0.95rem;
}

.kv-roi__methodology ul,
.kv-roi__methodology ol {
    color: var(--kv-roi-muted);
    line-height: 1.7;
    padding-left: 1.25rem;
    margin: 0 0 1rem 0;
    font-size: 0.95rem;
}

.kv-roi__methodology li {
    margin-bottom: 0.35rem;
}

.kv-roi__methodology a {
    color: var(--kv-roi-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.kv-roi__formula {
    background: #f8fafc;
    border-left: 3px solid var(--kv-roi-primary);
    border-radius: 8px;
    padding: 0.85rem 1rem;
    font-family: 'SF Mono', Menlo, Consolas, monospace;
    font-size: 0.85rem;
    color: var(--kv-roi-text);
    margin: 0.75rem 0 1rem 0;
    line-height: 1.6;
    overflow-x: auto;
}

.kv-roi__sources {
    background: #f8fafc;
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin-top: 1rem;
}

.kv-roi__sources h4 {
    margin-top: 0;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--kv-roi-muted);
}

.kv-roi__sources ol {
    font-size: 0.85rem;
    margin: 0;
    padding-left: 1.25rem;
}

/* Compact spacing on small screens */
@media (max-width: 520px) {
    .kv-roi__card,
    .kv-roi__result {
        padding: 1.5rem;
    }
    .kv-roi__metrics {
        grid-template-columns: 1fr;
    }
    .kv-roi__number {
        width: 80px;
    }
}