/* ガソリン代計算ツール 専用スタイル（他ツールとは共用しない） */

.pt-gs-intro {
    margin: 0.8rem 0 0.4rem;
}

.pt-gs-tabs {
    display: flex;
    gap: 0.5rem;
    margin: 1rem 0 1.5rem;
    flex-wrap: wrap;
}

.pt-gs-tab {
    padding: 0.5rem 1.25rem;
    border: 0.0625rem solid #ccd3da;
    border-radius: 62.5rem;
    background: #fff;
    color: var(--pt-blue);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.pt-gs-tab.is-active {
    background: var(--pt-blue);
    border-color: transparent;
    color: #fff;
}

.pt-gs-panel {
    padding: 1.25rem;
    border: 0.0625rem solid var(--pt-green-border);
    border-radius: 1rem;
    background: linear-gradient(160deg, #eef6ff 0%, var(--pt-green-bg) 100%);
    margin-bottom: 1.5rem;
}

.pt-gs-field-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.pt-gs-field {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-weight: 700;
    font-size: 0.9rem;
    color: #333;
}

.pt-gs-field--wide {
    width: 100%;
}

.pt-gs-field__input-group {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 400;
}

.pt-gs-field input[type="number"] {
    padding: 0.5rem 0.75rem;
    border: 0.0625rem solid #ccd3da;
    border-radius: 0.5rem;
    font-size: 1rem;
    min-width: 8rem;
}

.pt-gs-checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
}

.pt-gs-fuel-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: -0.3rem 0 1rem;
}

.pt-gs-fuel-presets[hidden] {
    display: none;
}

.pt-gs-preset-btn {
    padding: 0.4rem 0.9rem;
    border: 0.0625rem solid #ccd3da;
    border-radius: 62.5rem;
    background: #fff;
    color: var(--pt-blue);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
}

.pt-gs-preset-btn.is-active {
    background: var(--pt-blue);
    border-color: transparent;
    color: #fff;
}

.pt-gs-formula {
    margin: 0.6rem 0 0;
    padding: 0.7rem 0.9rem;
    border: 0.0625rem solid #d5dde5;
    border-radius: 0.6rem;
    background: #f4f8fb;
    font-size: 0.88rem;
    line-height: 1.7;
}

.pt-gs-formula:empty {
    display: none;
}

.pt-gs-about {
    margin: 2rem 0;
}

.pt-gs-formula-box {
    margin: 0.6rem 0 1rem;
    padding: 0.9rem 1.1rem;
    border: 0.0625rem solid var(--pt-green-border);
    border-radius: 0.7rem;
    background: var(--pt-green-bg);
    color: var(--pt-green-dark);
    font-weight: 700;
    font-size: 1.02rem;
    text-align: center;
}