/* relationship-calculator — aligned with cron-tools site palette */

.main-three-part-grid-container .tool-form-relationship-calculator {
    max-width: 44rem;
    margin-left: auto;
    margin-right: auto;
    color: #666;
    font-size: 0.875rem;
    line-height: 1.5;
    text-align: left;
}

.main-three-part-grid-container .content > .rel-features,
.main-three-part-grid-container .content > .tool-info-relationship-calculator {
    max-width: none;
    margin-left: 0;
    margin-right: 0;
    text-align: left;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn {
    margin-right: 0;
}

/* ── card shell ── */
.main-three-part-grid-container .tool-form-relationship-calculator .rel-card {
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    background: #fff;
    box-shadow: none;
    overflow: hidden;
}

/* ── tabs ── */
.main-three-part-grid-container .tool-form-relationship-calculator .c-hd {
    padding: 0.75rem 0.85rem 0;
    background: #fff;
    border-bottom: 1px solid #e3e3e3;
}

.main-three-part-grid-container .tool-form-relationship-calculator .c-hd ul {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
    border-radius: 0;
    background: transparent;
    overflow: visible;
}

.main-three-part-grid-container .tool-form-relationship-calculator .c-hd li {
    display: flex !important;
    align-items: center;
    justify-content: center;
    min-width: 0;
    height: 2.125rem;
    margin: 0;
    padding: 0;
    border-radius: 0;
    list-style: none !important;
    color: inherit;
    background: transparent;
    border-bottom: 2px solid transparent;
    transition: border-color 0.15s, color 0.15s;
}

.main-three-part-grid-container .tool-form-relationship-calculator .c-hd li::before,
.main-three-part-grid-container .tool-form-relationship-calculator .c-hd li::after {
    content: none !important;
    display: none !important;
}

.main-three-part-grid-container .tool-form-relationship-calculator .c-hd li a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0 0.35rem;
    box-sizing: border-box;
    text-align: center;
    font-size: 0.8125rem;
    font-weight: 400;
    line-height: 1;
    color: #737373;
    text-decoration: none;
    border: none;
    background: transparent;
    border-radius: 0;
    transition: color 0.15s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.main-three-part-grid-container .tool-form-relationship-calculator .c-hd li a:hover {
    color: #3280f8;
}

.main-three-part-grid-container .tool-form-relationship-calculator .c-hd li.active {
    background: transparent;
    box-shadow: none;
    border-bottom-color: #3280f8;
}

.main-three-part-grid-container .tool-form-relationship-calculator .c-hd li.active a {
    color: #3280f8;
    font-weight: 600;
}

/* ── body ── */
.main-three-part-grid-container .tool-form-relationship-calculator .c-bd {
    padding: 0.85rem 0.85rem 1rem;
}

.main-three-part-grid-container .tool-form-relationship-calculator .c-panel {
    display: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .c-panel:first-child {
    display: block;
}

.main-three-part-grid-container .tool-form-relationship-calculator .row {
    margin-bottom: 0.75rem;
}

.main-three-part-grid-container .tool-form-relationship-calculator .row.text-right {
    margin-bottom: 0.65rem;
}

/* ── inline toolbar (settings) ── */
.main-three-part-grid-container .tool-form-relationship-calculator .rel-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem 1rem;
    margin-bottom: 0.75rem;
    padding: 0.55rem 0.65rem;
    border-radius: 4px;
    background: #fafafa;
    border: 1px solid #e3e3e3;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-toolbar-inline {
    justify-content: space-between;
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-setting {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    flex-wrap: wrap;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-setting-label {
    flex-shrink: 0;
    font-size: 0.8125rem;
    font-weight: 400;
    color: #888;
    white-space: nowrap;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-seg {
    display: inline-flex;
    align-items: center;
    padding: 1px;
    border-radius: 4px;
    background: #ececec;
    border: 1px solid #d9d9d9;
    gap: 0;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-seg.field {
    margin: 0;
}

.main-three-part-grid-container .tool-form-relationship-calculator .field label {
    position: relative;
    display: inline-flex;
    align-items: center;
    margin: 0;
    cursor: pointer;
}

.main-three-part-grid-container .tool-form-relationship-calculator .field label input[type="radio"],
.main-three-part-grid-container .tool-form-relationship-calculator .field label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-seg label span {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 3px;
    font-size: 0.8125rem;
    color: #666;
    background: transparent;
    border: none;
    transition: color 0.15s, background 0.15s;
    white-space: nowrap;
    user-select: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-seg label:hover span {
    color: #3280f8;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-seg label input:checked + span {
    color: #3280f8;
    font-weight: 600;
    background: #fff;
    box-shadow: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-check {
    display: inline-flex;
    align-items: center;
    margin: 0;
    cursor: pointer;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-check span {
    display: inline-block;
    padding: 0.25rem 0.55rem;
    border-radius: 4px;
    font-size: 0.8125rem;
    color: #666;
    background: #fff;
    border: 1px solid #d9d9d9;
    transition: color 0.15s, background 0.15s, border-color 0.15s;
    user-select: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-check input:checked + span {
    color: #3280f8;
    font-weight: 600;
    background: #f7faff;
    border-color: #a8ccf8;
}

/* ── vertical form stack (panels 3–4) ── */
.main-three-part-grid-container .tool-form-relationship-calculator .rel-form-stack {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 0.75rem;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-input-label {
    font-size: 0.8125rem;
    font-weight: 400;
    color: #888;
    line-height: 1.4;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-form-stack .input-text {
    margin-bottom: 0.35rem;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-form-stack .input-text:last-child {
    margin-bottom: 0;
}

/* ── composer (input + chips) ── */
.main-three-part-grid-container .tool-form-relationship-calculator .rel-composer {
    margin-bottom: 0.75rem;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    background: #fff;
    overflow: hidden;
    transition: border-color 0.15s;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-composer:focus-within {
    border-color: #3280f8;
    box-shadow: none;
    background: #fff;
}

.main-three-part-grid-container .tool-form-relationship-calculator textarea[name="input"] {
    width: 100%;
    box-sizing: border-box;
    min-height: 3.75rem;
    padding: 0.65rem 0.75rem;
    border: none;
    border-bottom: 1px solid #e3e3e3;
    border-radius: 0;
    background: transparent;
    font-size: 0.875rem;
    color: #333;
    font-family: inherit;
    line-height: 1.55;
    resize: vertical;
    outline: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator textarea[name="input"]::placeholder {
    color: #999;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-chip-section {
    padding: 0.5rem 0.65rem;
    background: #fafafa;
    border-top: 1px solid #e3e3e3;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-composer-bar {
    margin: 0;
    padding: 0.5rem 0.65rem;
    border-top: 1px solid #e3e3e3;
    background: #fff;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-composer-bar .rel-actions {
    justify-content: flex-end;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin: 0;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-small {
    min-width: 2rem;
    height: 1.875rem;
    padding: 0 0.55rem;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    background: #fff;
    color: #666;
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

/* 父母 */
.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(1),
.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(2) {
    color: #2563b8;
    background: #eff6ff;
    border-color: #93c5fd;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(1):hover:not(:disabled),
.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(2):hover:not(:disabled) {
    color: #1d4ed8;
    background: #dbeafe;
    border-color: #60a5fa;
}

/* 配偶 */
.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(3),
.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(4) {
    color: #be185d;
    background: #fdf2f8;
    border-color: #f9a8d4;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(3):hover:not(:disabled),
.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(4):hover:not(:disabled) {
    color: #9d174d;
    background: #fce7f3;
    border-color: #f472b6;
}

/* 兄弟姐妹 */
.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(n+5):nth-child(-n+8) {
    color: #047857;
    background: #ecfdf5;
    border-color: #6ee7b7;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(n+5):nth-child(-n+8):hover:not(:disabled) {
    color: #065f46;
    background: #d1fae5;
    border-color: #34d399;
}

/* 子女 */
.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(n+9) {
    color: #b45309;
    background: #fffbeb;
    border-color: #fcd34d;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:nth-child(n+9):hover:not(:disabled) {
    color: #92400e;
    background: #fef3c7;
    border-color: #fbbf24;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:hover:not(:disabled) {
    box-shadow: none;
    transform: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:active:not(:disabled) {
    transform: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-small:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

/* ── action bar ── */
.main-three-part-grid-container .tool-form-relationship-calculator .operation {
    margin-bottom: 0.85rem;
}

.main-three-part-grid-container .tool-form-relationship-calculator .operation .row,
.main-three-part-grid-container .tool-form-relationship-calculator .rel-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
    gap: 0.4rem;
    margin: 0;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-3,
.main-three-part-grid-container .tool-form-relationship-calculator .operation .btn {
    height: 2rem;
    min-width: 4rem;
    padding: 0 0.85rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    line-height: 2rem;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-orange {
    color: #737373;
    background: #fff;
    border: 1px solid #e3e3e3;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-orange:hover {
    color: #3280f8;
    background: #f7faff;
    border-color: #a8ccf8;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-red {
    color: #737373;
    background: #fff;
    border: 1px solid #e3e3e3;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-red:hover {
    color: #3280f8;
    background: #f7faff;
    border-color: #a8ccf8;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-green {
    color: #f2f2f2;
    background-color: #3280f8;
    border: 1px solid #3280f8;
    box-shadow: none;
    min-width: 4.5rem;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-green:hover {
    color: #f2f2f2;
    background-color: #4d93f9;
    border-color: #4d93f9;
    box-shadow: none;
    transform: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .btn-green:active {
    transform: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .c-panel:not(:first-child) .btn-green {
    min-width: 4.5rem;
}

/* ── inputs (panels 2–4) ── */
.main-three-part-grid-container .tool-form-relationship-calculator .input-text {
    width: 100%;
    box-sizing: border-box;
    height: 2rem;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    padding: 0 0.65rem;
    font-size: 0.875rem;
    color: #333;
    background: #fff;
    font-family: inherit;
    line-height: 1.5;
    outline: none;
    transition: border-color 0.15s;
}

.main-three-part-grid-container .tool-form-relationship-calculator .input-text:focus {
    border-color: #3280f8;
    box-shadow: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .input-text::placeholder {
    color: #999;
}

/* ── result panel ── */
.main-three-part-grid-container .tool-form-relationship-calculator .rel-result-block {
    margin-top: 0;
    margin-bottom: 0;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-result-label {
    display: block;
    margin: 0 0 0.35rem;
    font-size: 0.8125rem;
    font-weight: 400;
    color: #888;
    letter-spacing: normal;
    text-transform: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-result-label::before {
    content: none;
    display: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator textarea[name="result"] {
    width: 100%;
    box-sizing: border-box;
    min-height: 3.5rem;
    padding: 0.65rem 0.75rem;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: #333;
    background: #fafafa;
    font-family: inherit;
    line-height: 1.5;
    resize: none;
    outline: none;
    text-align: left;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.main-three-part-grid-container .tool-form-relationship-calculator textarea[name="result"]:not(:placeholder-shown) {
    border-color: #a8ccf8;
    background: #fff;
    color: #3280f8;
}

.main-three-part-grid-container .tool-form-relationship-calculator textarea[name="result"]::placeholder {
    color: #999;
    font-weight: 400;
}

/* ── pair inputs ── */
.main-three-part-grid-container .tool-form-relationship-calculator .rel-pair-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0.65rem;
    align-items: center;
    margin-bottom: 0.75rem;
}

.main-three-part-grid-container .tool-form-relationship-calculator .rel-pair-plus {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 600;
    color: #666;
    background: #fafafa;
    border: 1px solid #d9d9d9;
}

/* ── examples ── */
.main-three-part-grid-container .tool-form-relationship-calculator .intro {
    margin-top: 0.15rem;
    padding: 0.55rem 0.65rem;
    border: 1px solid #e3e3e3;
    border-radius: 4px;
    background: #fafafa;
}

.main-three-part-grid-container .tool-form-relationship-calculator .intro h3 {
    margin: 0 0 0.35rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #666;
    letter-spacing: normal;
    text-transform: none;
}

.main-three-part-grid-container .tool-form-relationship-calculator .intro .q {
    display: block;
    margin: 0 0 0.2rem;
    padding: 0;
    border-radius: 0;
    font-size: 0.8125rem;
    color: #737373;
    background: transparent;
    border: none;
    line-height: 1.55;
}

.main-three-part-grid-container .tool-form-relationship-calculator .intro .q:last-child {
    margin-bottom: 0;
}

/* ── features (full-width, outside centered card) ── */
.main-three-part-grid-container .content > .rel-features {
    margin-top: 1rem;
    padding-top: 0;
    border-top: none;
    text-align: left;
}

.main-three-part-grid-container .content > .rel-features .rel-features-title {
    margin: 0 0 0.65rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #666;
    letter-spacing: normal;
    text-align: left;
}

.main-three-part-grid-container .content > .rel-features .rel-features-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.5rem;
}

.main-three-part-grid-container .content > .rel-features .rel-feature-item {
    padding: 0.65rem 0.75rem;
    border: 1px solid #e3e3e3;
    border-radius: 4px;
    background: #fff;
    transition: border-color 0.15s;
}

.main-three-part-grid-container .content > .rel-features .rel-feature-item:hover {
    border-color: #a8ccf8;
    background: #fff;
}

.main-three-part-grid-container .content > .rel-features .rel-feature-item .q {
    margin: 0 0 0.25rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #666;
    text-align: left;
}

.main-three-part-grid-container .content > .rel-features .rel-feature-item .a {
    margin: 0.08rem 0;
    font-size: 0.75rem;
    color: #888;
    line-height: 1.55;
    text-align: left;
}

/* ── responsive ── */
@media (max-width: 900px) {
    .main-three-part-grid-container .content > .rel-features .rel-features-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .main-three-part-grid-container .tool-form-relationship-calculator .c-hd {
        padding: 0.65rem 0.65rem 0;
    }

    .main-three-part-grid-container .tool-form-relationship-calculator .c-hd ul {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0;
        padding: 0 !important;
    }

    .main-three-part-grid-container .tool-form-relationship-calculator .c-hd li {
        height: 2rem;
    }

    .main-three-part-grid-container .tool-form-relationship-calculator .c-hd li a {
        padding: 0 0.25rem;
        font-size: 0.75rem;
    }

    .main-three-part-grid-container .tool-form-relationship-calculator .c-bd {
        padding: 0.75rem 0.65rem 0.85rem;
    }

    .main-three-part-grid-container .tool-form-relationship-calculator .rel-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }

    .main-three-part-grid-container .tool-form-relationship-calculator .rel-setting {
        justify-content: space-between;
    }

    .main-three-part-grid-container .tool-form-relationship-calculator .rel-toolbar-inline {
        flex-direction: column;
        align-items: stretch;
    }

    .main-three-part-grid-container .tool-form-relationship-calculator .operation .row,
    .main-three-part-grid-container .tool-form-relationship-calculator .rel-actions {
        justify-content: stretch;
    }

    .main-three-part-grid-container .tool-form-relationship-calculator .btn-3,
    .main-three-part-grid-container .tool-form-relationship-calculator .operation .btn {
        flex: 1 1 auto;
    }

    .main-three-part-grid-container .content > .rel-features .rel-features-grid {
        grid-template-columns: 1fr;
    }
}