.ivf-cumulative-widget {
    --ivf-bg: #f7f4ee;
    --ivf-card: #ffffff;
    --ivf-accent: #0d6b5e;
    --ivf-accent-dark: #094d44;
    --ivf-text: #1f2a2d;
    --ivf-muted: #5f6d70;
    --ivf-border: #d8dfdd;
    --ivf-bar: #0d6b5e;
    --ivf-bar-light: #b2ddd5;
    font-family: "Avenir Next", "Segoe UI", Arial, sans-serif;
    background: linear-gradient(155deg, #efe8dc 0%, #f8f6f2 42%, #eef7f5 100%);
    border: 1px solid #d9d5cb;
    border-radius: 16px;
    color: var(--ivf-text);
    padding: 24px;
    box-shadow: 0 10px 30px rgba(22, 30, 29, 0.08);
}

.ivf-cumulative-widget h2 {
    margin: 0 0 8px 0;
    font-size: 1.45rem;
    letter-spacing: 0.01em;
}

.ivf-cumulative-widget h3 {
    margin: 0 0 10px 0;
    font-size: 1.1rem;
}

.ivf-cumulative-widget p {
    margin: 0;
}

.ivf-cumulative-widget__subtitle {
    color: var(--ivf-muted);
    margin-bottom: 14px;
}

/* Full-width field (model selector) */
.ivf-cumulative-widget__field--full {
    margin-bottom: 14px;
}

/* Patient info grid */
.ivf-cumulative-widget__patient-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-bottom: 18px;
}

.ivf-cumulative-widget__field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.ivf-cumulative-widget label {
    font-size: 0.88rem;
    color: var(--ivf-muted);
    font-weight: 600;
}

.ivf-cumulative-widget input,
.ivf-cumulative-widget select {
    border: 1px solid var(--ivf-border);
    border-radius: 10px;
    padding: 11px 12px;
    font-size: 0.98rem;
    color: var(--ivf-text);
    background: var(--ivf-card);
}

.ivf-cumulative-widget input:focus,
.ivf-cumulative-widget select:focus {
    border-color: var(--ivf-accent);
    box-shadow: 0 0 0 3px rgba(13, 107, 94, 0.18);
    outline: none;
}

/* Section header */
.ivf-cumulative-widget__section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.ivf-cumulative-widget__section-note {
    color: var(--ivf-muted);
    font-size: 0.84rem;
    margin-bottom: 10px;
}

/* Embryo list */
.ivf-cumulative-widget__embryo-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 12px;
}

.ivf-cumulative-widget__embryo-entry {
    background: var(--ivf-card);
    border: 1px solid var(--ivf-border);
    border-radius: 12px;
    padding: 12px;
}

.ivf-cumulative-widget__embryo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.ivf-cumulative-widget__embryo-number {
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--ivf-accent);
}

.ivf-cumulative-widget__transfer-label {
    font-size: 0.8rem;
    color: var(--ivf-muted);
    background: #ecf8f4;
    padding: 2px 8px;
    border-radius: 8px;
}

.ivf-cumulative-widget__remove-btn {
    background: none;
    border: 1px solid #e0c4c4;
    border-radius: 8px;
    color: #8d2626;
    cursor: pointer;
    font-size: 1.1rem;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
}

.ivf-cumulative-widget__remove-btn:hover {
    background: #fff0f0;
}

.ivf-cumulative-widget__embryo-body {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* Add embryo button */
.ivf-cumulative-widget__add-btn {
    background: var(--ivf-card);
    border: 2px dashed var(--ivf-border);
    border-radius: 11px;
    color: var(--ivf-accent);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 10px 14px;
    width: 100%;
    margin-bottom: 16px;
}

.ivf-cumulative-widget__add-btn:hover {
    border-color: var(--ivf-accent);
    background: #f0faf7;
}

.ivf-cumulative-widget__add-btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
    color: var(--ivf-muted);
}

/* Submit button */
.ivf-cumulative-widget__submit {
    background: linear-gradient(135deg, var(--ivf-accent) 0%, var(--ivf-accent-dark) 100%);
    border: none;
    border-radius: 11px;
    color: #fff;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    padding: 12px 14px;
    width: 100%;
}

.ivf-cumulative-widget__submit:disabled {
    cursor: progress;
    opacity: 0.7;
}

/* Results */
.ivf-cumulative-widget__results,
.ivf-cumulative-widget__error {
    margin-top: 16px;
    border-radius: 12px;
    padding: 16px;
}

.ivf-cumulative-widget__results {
    background: #ecf8f4;
    border: 1px solid #c8e9df;
}

.ivf-cumulative-widget__error {
    background: #fff0f0;
    border: 1px solid #f4c2c2;
    color: #8d2626;
}

/* Final probability summary */
.ivf-cumulative-widget__final-prob {
    text-align: center;
    padding: 12px 0 16px;
    border-bottom: 1px solid #c8e9df;
    margin-bottom: 16px;
}

.ivf-cumulative-widget__final-label {
    display: block;
    font-size: 0.85rem;
    color: var(--ivf-muted);
    margin-bottom: 4px;
}

.ivf-cumulative-widget__final-value {
    display: block;
    font-size: 2.2rem;
    font-weight: 700;
    color: #0c5d53;
}

.ivf-cumulative-widget__final-note {
    display: block;
    font-size: 0.82rem;
    color: var(--ivf-muted);
    margin-top: 2px;
}

.ivf-cumulative-widget__patient-summary {
    display: flex;
    justify-content: center;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--ivf-muted);
    margin-top: 6px;
}

/* Bar chart */
.ivf-cumulative-widget__chart {
    margin-bottom: 16px;
}

.ivf-cumulative-widget__chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 160px;
    padding: 0 4px;
}

.ivf-cumulative-widget__bar-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.ivf-cumulative-widget__bar-container {
    flex: 1;
    width: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.ivf-cumulative-widget__bar {
    width: 70%;
    max-width: 48px;
    background: linear-gradient(180deg, var(--ivf-bar) 0%, var(--ivf-bar-light) 100%);
    border-radius: 6px 6px 0 0;
    position: relative;
    min-height: 4px;
    transition: height 0.4s ease;
}

.ivf-cumulative-widget__bar-value {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--ivf-accent-dark);
    white-space: nowrap;
}

.ivf-cumulative-widget__bar-label {
    text-align: center;
    margin-top: 6px;
    font-size: 0.75rem;
    line-height: 1.3;
}

.ivf-cumulative-widget__bar-label strong {
    display: block;
    color: var(--ivf-text);
}

.ivf-cumulative-widget__bar-label span {
    color: var(--ivf-muted);
    font-size: 0.7rem;
}

/* Results table */
.ivf-cumulative-widget__table-wrap {
    overflow-x: auto;
}

.ivf-cumulative-widget__table-wrap table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.ivf-cumulative-widget__table-wrap th,
.ivf-cumulative-widget__table-wrap td {
    padding: 8px 10px;
    text-align: left;
    border-bottom: 1px solid #c8e9df;
}

.ivf-cumulative-widget__table-wrap th {
    font-size: 0.8rem;
    color: var(--ivf-muted);
    font-weight: 600;
}

.ivf-cumulative-widget__table-wrap .cumulative-cell {
    font-weight: 700;
    color: var(--ivf-accent-dark);
}

.ivf-cumulative-widget__table-note {
    font-size: 0.78rem;
    color: var(--ivf-muted);
    margin-top: 8px;
    line-height: 1.5;
}

/* Responsive */
@media (max-width: 740px) {
    .ivf-cumulative-widget {
        padding: 18px;
    }

    .ivf-cumulative-widget__patient-grid,
    .ivf-cumulative-widget__embryo-body {
        grid-template-columns: 1fr;
    }

    .ivf-cumulative-widget__chart-bars {
        height: 120px;
    }

    .ivf-cumulative-widget__bar-value {
        font-size: 0.65rem;
    }

    .ivf-cumulative-widget__patient-summary {
        flex-direction: column;
        gap: 4px;
        align-items: center;
    }
}