.wppc-group,
.wppc-tabs,
.wppc-faq,
.wppc-card {
    --wppc-accent: #10b981;
    --wppc-card-bg: #ffffff;
    --wppc-surface-bg: #f8fafc;
    --wppc-radius: 18px;
}

.wppc-group,
.wppc-tabs,
.wppc-faq {
    margin: 0 0 28px;
}

.wppc-group__header {
    margin-bottom: 18px;
}

.wppc-group__title,
.wppc-faq__title {
    margin: 0;
    font-size: 30px;
    line-height: 1.2;
    color: #111827;
}

.wppc-group__subtitle {
    margin: 8px 0 0;
    color: #4b5563;
    font-size: 15px;
}

.wppc-calculators-grid {
    display: grid;
    gap: 24px;
}

.wppc-card {
    border: 1px solid #e5e7eb;
    border-radius: var(--wppc-radius);
    padding: 24px;
    background: var(--wppc-card-bg);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
    margin: 0;
}

.wppc-card__header {
    margin-bottom: 20px;
}

.wppc-card__title {
    margin: 0 0 8px;
    font-size: 26px;
    line-height: 1.25;
    color: #111827;
}

.wppc-card__desc {
    margin: 0;
    color: #4b5563;
    font-size: 15px;
}

.wppc-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.wppc-fields--wide {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.wppc-field {
    display: block;
}

.wppc-field--full {
    grid-column: 1 / -1;
}

.wppc-field__label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #111827;
    font-size: 14px;
}

.wppc-input-wrap {
    position: relative;
    display: block;
}

.wppc-input,
.wppc-select {
    width: 100%;
    min-height: 52px;
    padding: 14px 16px;
    border: 1px solid #d1d5db;
    border-radius: 12px;
    font-size: 18px;
    line-height: 1.3;
    background: #fff;
    color: #111827;
    box-sizing: border-box;
}

.wppc-input:focus,
.wppc-select:focus {
    outline: none;
    border-color: var(--wppc-accent);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.15);
}

.wppc-result {
    background: var(--wppc-surface-bg);
    font-weight: 700;
}

.wppc-input__suffix {
    position: absolute;
    top: 50%;
    right: 14px;
    transform: translateY(-50%);
    color: #6b7280;
    font-weight: 600;
    pointer-events: none;
}

.wppc-choices {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.wppc-choice {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 12px;
    background: #fff;
    cursor: pointer;
}

.wppc-choice input {
    margin: 0;
}

.wppc-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.wppc-btn {
    border: 0;
    border-radius: 12px;
    padding: 13px 18px;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    background: var(--wppc-accent);
    color: #ffffff;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.wppc-btn:hover,
.wppc-tab-btn:hover {
    transform: translateY(-1px);
    opacity: 0.96;
}

.wppc-btn--ghost {
    background: #f3f4f6;
    color: #111827;
}

.wppc-details {
    margin-top: 12px;
}

.wppc-detail-list {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.wppc-detail-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 12px;
    background: var(--wppc-surface-bg);
    border-radius: 10px;
    font-size: 14px;
}

.wppc-detail-row strong {
    color: #111827;
}

.wppc-message {
    min-height: 22px;
    margin-top: 10px;
    color: #6b7280;
    font-size: 14px;
}

.wppc-message.is-error {
    color: #b91c1c;
}

.wppc-message.is-success {
    color: #047857;
}

.wppc-error {
    padding: 14px 16px;
    border: 1px solid #fecaca;
    background: #fef2f2;
    color: #991b1b;
    border-radius: 12px;
}

.wppc-tab-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 0 0 22px;
}

.wppc-tab-btn {
    border: 1px solid #d1d5db;
    border-radius: 999px;
    background: #fff;
    color: #111827;
    padding: 12px 18px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.15s ease, background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.wppc-tab-btn.is-active {
    background: var(--wppc-accent);
    border-color: var(--wppc-accent);
    color: #fff;
}

.wppc-tab-panel {
    display: none;
}

.wppc-tab-panel.is-active {
    display: block;
}

.wppc-faq {
    margin-top: 28px;
    padding: 24px;
    border-radius: var(--wppc-radius);
    background: var(--wppc-card-bg);
    border: 1px solid #e5e7eb;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.wppc-faq__items {
    display: grid;
    gap: 12px;
    margin-top: 18px;
}

.wppc-faq__item {
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    background: var(--wppc-surface-bg);
    padding: 0 16px;
}

.wppc-faq__item summary {
    cursor: pointer;
    font-weight: 700;
    color: #111827;
    padding: 16px 0;
    list-style: none;
}

.wppc-faq__item summary::-webkit-details-marker {
    display: none;
}

.wppc-faq__answer {
    color: #374151;
    padding: 0 0 16px;
    line-height: 1.6;
}

@media (max-width: 900px) {
    .wppc-fields,
    .wppc-fields--wide {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 767px) {
    .wppc-card,
    .wppc-faq {
        padding: 18px;
        border-radius: 14px;
    }

    .wppc-group__title,
    .wppc-faq__title {
        font-size: 24px;
    }

    .wppc-card__title {
        font-size: 22px;
    }

    .wppc-fields,
    .wppc-fields--wide {
        grid-template-columns: 1fr;
    }

    .wppc-btn,
    .wppc-tab-btn {
        width: 100%;
    }

    .wppc-detail-row {
        flex-direction: column;
        gap: 4px;
    }
}