body {
    font-family: 'Helvetica Neue', 'Hiragino Sans', sans-serif;
    background-color: #f8f8f8;
    color: #333;
    margin: 0;
    padding: 2em 1em;
}

.form-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2em;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
}

h1 {
    font-size: 1.4em;
    margin: 0 0 1.5em;
    text-align: center;
}

h2 {
    font-size: 1.1em;
    margin: 0;
}

.onaoshi-grid {
    margin-bottom: 1em;
}

.onaoshi-grid-header,
.onaoshi-grid-row {
    display: grid;
    grid-template-columns: minmax(8em, 1.1fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 0.75fr);
    gap: 0.5em 0.75em;
    align-items: start;
}

.onaoshi-grid-heading-diff {
    text-align: center;
}

.onaoshi-grid-cell {
    min-width: 0;
}

.onaoshi-grid-header {
    margin-bottom: 1em;
    padding-bottom: 0.5em;
    border-bottom: 1px solid #ddd;
}

.onaoshi-grid-label {
    font-weight: bold;
    padding-top: 0.5em;
}

.onaoshi-grid-row {
    margin-bottom: 1.2em;
}

.onaoshi-grid-cell--empty {
    min-height: 0;
}

.onaoshi-grid-row .form-field {
    margin-bottom: 0;
}

.form-field {
    margin-bottom: 1.2em;
}

.form-field.is-hidden {
    display: none;
}

label {
    display: block;
    margin-bottom: 0.4em;
    font-weight: bold;
}

.onaoshi-input,
select {
    width: 100%;
    padding: 0.5em;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1em;
}

.onaoshi-input.is-invalid {
    border-color: #c00;
}

.onaoshi-input-readonly {
    background-color: #e9e9e9;
    color: #333;
    cursor: not-allowed;
}

.onaoshi-grid-cell-preset {
    min-width: 0;
}

.onaoshi-preset-value {
    display: block;
    width: 100%;
    padding: 0.5em;
    box-sizing: border-box;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #f3f3f3;
    font-size: 1em;
    line-height: 1.4;
    min-height: 2.4em;
}

.onaoshi-diff-value {
    display: block;
    width: 100%;
    padding: 0.5em 0.35em;
    box-sizing: border-box;
    font-size: 1em;
    line-height: 1.4;
    min-height: 2.4em;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

.field-ng {
    display: block;
    margin-top: 0.35em;
    color: #c00;
    font-size: 0.9em;
    font-weight: normal;
    line-height: 1.4;
}

.field-ng[hidden] {
    display: none;
}

.onaoshi-diagnosis,
.onaoshi-workflow {
    margin-top: 2em;
    padding-top: 1.5em;
    border-top: 1px solid #ddd;
}

.onaoshi-diagnosis h2,
.onaoshi-workflow h2 {
    font-size: 1.2em;
    margin: 0 0 1em;
    text-align: center;
}

.onaoshi-diagnosis h3 {
    font-size: 1em;
    font-weight: 600;
    margin: 1.2em 0 0.6em;
}

.onaoshi-diagnosis-keyword {
    font-weight: 800;
    color: #b33;
}

.onaoshi-diagnosis-list {
    margin: 0;
    padding-left: 1.4em;
    line-height: 1.6;
}

#onaoshi-diagnosis-list:empty::before {
    content: '（該当なし）';
    display: block;
    margin-left: -1.4em;
    color: #666;
    list-style: none;
}

#onaoshi-diagnosis-optional-list:empty::before {
    content: '（該当なし）';
    display: block;
    margin-left: -1.4em;
    color: #666;
    list-style: none;
}

#onaoshi-diagnosis-unavailable-list:empty::before {
    content: '（該当なし）';
    display: block;
    margin-left: -1.4em;
    color: #666;
    list-style: none;
}

html[lang="en"] #onaoshi-diagnosis-list:empty::before,
html[lang="en"] #onaoshi-diagnosis-optional-list:empty::before,
html[lang="en"] #onaoshi-diagnosis-unavailable-list:empty::before {
    content: '(None)';
}

.onaoshi-diagnosis-list li + li {
    margin-top: 0.4em;
}

button {
    display: block;
    width: 100%;
    margin-top: 1.5em;
    padding: 0.75em;
    background-color: #c45c26;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 1em;
    cursor: pointer;
}

button:hover:not(:disabled) {
    background-color: #a34a1e;
}

button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.errorlist {
    color: #c00;
    list-style: none;
    padding: 0;
    margin: 0.25em 0 0;
    font-size: 0.9em;
}

/* スマホ: 入力欄を優先し、項目名・見出しをコンパクトに */
@media (max-width: 640px) {
    body {
        padding: 0.75em 0.35em;
    }

    .form-container {
        padding: 1em 0.65em;
        border-radius: 6px;
    }

    h1 {
        font-size: 1.2em;
        margin-bottom: 1em;
    }

    .onaoshi-grid {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .onaoshi-grid-header,
    .onaoshi-grid-row {
        grid-template-columns: minmax(0, 4.2em) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 0.7fr);
        gap: 0.35em 0.35em;
    }

    .onaoshi-grid-header {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 0.7fr);
    }

    .onaoshi-grid-header > .onaoshi-grid-label:empty {
        display: none;
    }

    .onaoshi-grid-header h2 {
        font-size: 0.72rem;
        line-height: 1.35;
        font-weight: bold;
    }

    .onaoshi-grid-label {
        font-size: 0.68rem;
        line-height: 1.35;
        font-weight: 600;
        padding-top: 0.55em;
        word-break: break-all;
        overflow-wrap: anywhere;
        hyphens: auto;
    }

    .onaoshi-grid-row {
        margin-bottom: 0.9em;
    }

    .onaoshi-input,
    select {
        width: 100%;
        min-width: 0;
        max-width: 100%;
        padding: 0.45em 0.35em;
        font-size: 16px;
    }

    .field-ng {
        font-size: 0.65rem;
        line-height: 1.3;
    }

    .errorlist {
        font-size: 0.75rem;
    }
}