.purchase-page main {
    overflow: hidden;
    background: var(--paper-deep);
}

.purchase-b {
    padding-block: clamp(3.5rem, 7vw, 6rem);
}

.purchase-b__intro {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
    gap: 4rem;
    align-items: end;
}

.purchase-b__intro h1 {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(3.8rem, 8vw, 7.5rem);
    font-weight: 500;
    letter-spacing: -0.075em;
    line-height: 0.8;
}

.purchase-b__intro > p {
    max-width: 28rem;
    margin: 0 0 0.5rem;
    color: var(--ink-soft);
    font-size: 1.05rem;
}

.purchase-environment-note {
    margin-top: 2rem;
    padding: 0.85rem 1rem;
    color: var(--green-950);
    background: #f3e6b8;
    border: 1px solid #d5c17e;
    border-radius: 10px;
    font-size: 0.78rem;
}

.purchase-b__ledger {
    margin-top: 4rem;
    border-top: 2px solid var(--ink);
}

.purchase-b__ledger-heading,
.purchase-b__row {
    display: grid;
    grid-template-columns: 1.05fr 0.75fr 1.4fr 0.72fr;
    gap: 1.5rem;
    align-items: center;
}

.purchase-b__ledger-heading {
    padding: 0.75rem 1rem;
    color: #667068;
    border-bottom: 1px solid var(--line-dark);
    font-size: 0.63rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.purchase-b__row {
    position: relative;
    min-height: 156px;
    padding: 1.5rem 1rem;
    border-bottom: 1px solid var(--line-dark);
}

.purchase-b__row--annual {
    margin-inline: -1rem;
    padding-inline: 2rem;
    background: var(--white);
    border: 1px solid var(--green-700);
    box-shadow: var(--shadow-sm);
}

.purchase-b__row--selected {
    box-shadow: 0 0 0 4px rgba(45, 113, 75, 0.14), var(--shadow-sm);
}

.purchase-b__plan-name {
    display: grid;
    grid-template-columns: 2rem 1fr;
    align-items: baseline;
}

.purchase-b__plan-name > span,
.purchase-b__supporter-number {
    color: var(--coral-dark);
    font-family: var(--serif);
    font-size: 0.75rem;
    font-style: italic;
}

.purchase-b__plan-name h2 {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 500;
    letter-spacing: -0.04em;
}

.purchase-b__plan-name em {
    grid-column: 2;
    justify-self: start;
    margin-top: 0.3rem;
    padding: 0.2rem 0.45rem;
    color: var(--white);
    background: var(--green-700);
    border-radius: 999px;
    font-family: var(--sans);
    font-size: 0.55rem;
    font-style: normal;
    font-weight: 900;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.purchase-b__price {
    margin: 0;
}

.purchase-b__price strong,
.purchase-b__price span,
.purchase-b__supporter-price span,
.purchase-b__supporter-price strong {
    display: block;
}

.purchase-b__price strong {
    font-family: var(--serif);
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 500;
    letter-spacing: -0.06em;
    line-height: 1;
}

.purchase-b__price span {
    margin-top: 0.25rem;
    color: #667068;
    font-size: 0.66rem;
    font-weight: 800;
}

.purchase-b__explain {
    margin: 0;
    color: var(--ink-soft);
    font-size: 0.84rem;
}

.purchase-b__annual-saving {
    color: var(--coral-dark);
}

.purchase-b__included {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.2rem 1rem;
    border-bottom: 1px solid var(--line-dark);
}

.purchase-b__included p {
    margin: 0;
    font-family: var(--serif);
    font-size: 0.88rem;
    font-style: italic;
}

.purchase-b__included ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.purchase-b__included li {
    padding: 0.25rem 0.5rem;
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid var(--line);
    border-radius: 999px;
    font-size: 0.6rem;
    font-weight: 800;
}

.purchase-b__supporter {
    display: grid;
    grid-template-columns: 5rem minmax(0, 1fr) minmax(18rem, 0.62fr);
    gap: clamp(1.5rem, 4vw, 3.5rem);
    align-items: center;
    margin-top: 3rem;
    padding: clamp(2rem, 5vw, 4rem);
    color: var(--white);
    background: var(--green-950);
    border-radius: 2px 44px 2px 44px;
    box-shadow: var(--shadow-md);
}

.purchase-b__supporter--selected {
    box-shadow: 0 0 0 4px rgba(201, 103, 79, 0.45), var(--shadow-md);
}

.purchase-b__supporter-number {
    align-self: start;
    color: var(--sage);
    font-size: 1rem;
}

.purchase-kicker {
    margin: 0 0 0.45rem;
    color: var(--sage);
    font-size: 0.7rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.purchase-b__supporter h2 {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(2.8rem, 6vw, 5.5rem);
    font-weight: 500;
    letter-spacing: -0.065em;
    line-height: 0.92;
}

.purchase-b__supporter-deck {
    margin: 1rem 0 0;
    color: var(--sage);
    font-family: var(--serif);
    font-size: 1.2rem;
    font-style: italic;
}

.purchase-b__supporter-copy > p:last-child {
    max-width: 41rem;
    color: #dce8de;
    font-size: 0.85rem;
}

.purchase-b__supporter-checkout {
    align-self: center;
    padding: 1.5rem;
    color: var(--ink);
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow-sm);
}

.purchase-b__supporter-price {
    margin: 0;
}

.purchase-b__supporter-price span {
    color: #667068;
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.purchase-b__supporter-price strong {
    margin-top: 0.2rem;
    font-family: var(--serif);
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 500;
    letter-spacing: -0.06em;
    line-height: 1;
}

.purchase-b__supporter-checkout > p:not(.purchase-b__supporter-price) {
    margin: 0.7rem 0 1rem;
    color: #667068;
    font-size: 0.72rem;
    line-height: 1.45;
}

.purchase-b__supporter-checkout small {
    display: block;
    margin-top: 0.65rem;
    color: #667068;
    font-size: 0.64rem;
    font-weight: 800;
    text-align: center;
}

.purchase-plan-form {
    margin: 0;
}

.purchase-button {
    display: inline-flex;
    width: 100%;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.1rem;
    border: 1px solid transparent;
    border-radius: 10px;
    font: inherit;
    font-size: 0.83rem;
    font-weight: 900;
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.purchase-button:hover:not(:disabled) {
    transform: translateY(-2px);
}

.purchase-button:focus-visible {
    outline: 3px solid var(--coral);
    outline-offset: 3px;
}

.purchase-button:disabled {
    opacity: 0.58;
    cursor: not-allowed;
}

.purchase-button--primary {
    color: var(--white);
    background: var(--green-700);
    box-shadow: 0 8px 22px rgba(18, 51, 38, 0.16);
}

.purchase-button--primary:hover:not(:disabled) {
    color: var(--white);
    background: var(--green-800);
}

.purchase-button--outline {
    color: var(--ink);
    background: transparent;
    border-color: var(--line-dark);
}

.purchase-button--outline:hover:not(:disabled) {
    color: var(--ink);
    background: var(--paper-deep);
}

.purchase-button--supporter {
    color: var(--white);
    background: var(--coral-dark);
}

.purchase-button--supporter:hover:not(:disabled) {
    color: var(--white);
    background: #9e4b38;
}

.purchase-b__note {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
    color: #68736d;
    font-size: 0.64rem;
    font-weight: 800;
}

.purchase-b__note span + span::before {
    margin-right: 2rem;
    content: "·";
}

@media (max-width: 960px) {
    .purchase-b__ledger-heading {
        display: none;
    }

    .purchase-b__row {
        grid-template-columns: 1fr 0.8fr 1.25fr;
    }

    .purchase-b__row .purchase-plan-form,
    .purchase-b__row > .purchase-button {
        grid-column: 3;
        width: min(100%, 17rem);
    }

    .purchase-b__supporter {
        grid-template-columns: 3rem minmax(0, 1fr);
    }

    .purchase-b__supporter-checkout {
        grid-column: 2;
        width: min(100%, 26rem);
    }
}

@media (max-width: 740px) {
    .purchase-b__intro {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .purchase-b__intro > p {
        max-width: 35rem;
    }

    .purchase-b__ledger {
        margin-top: 2.7rem;
    }

    .purchase-b__row {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .purchase-b__row--annual {
        margin-inline: -0.5rem;
        padding-inline: 1.5rem;
    }

    .purchase-b__explain,
    .purchase-b__row .purchase-plan-form,
    .purchase-b__row > .purchase-button {
        grid-column: 1 / -1;
    }

    .purchase-b__row .purchase-plan-form,
    .purchase-b__row > .purchase-button {
        width: 100%;
    }

    .purchase-b__included,
    .purchase-b__note {
        align-items: flex-start;
        flex-direction: column;
    }

    .purchase-b__note {
        gap: 0.35rem;
    }

    .purchase-b__note span + span::before {
        margin-right: 0.45rem;
    }

    .purchase-b__supporter {
        grid-template-columns: 1fr;
        border-radius: 2px 28px 2px 28px;
    }

    .purchase-b__supporter-number,
    .purchase-b__supporter-checkout {
        grid-column: 1;
    }
}

@media (max-width: 480px) {
    .purchase-b__intro h1 {
        font-size: clamp(3.2rem, 19vw, 4.8rem);
    }

    .purchase-b__row {
        grid-template-columns: 1fr;
    }

    .purchase-b__explain,
    .purchase-b__row .purchase-plan-form,
    .purchase-b__row > .purchase-button {
        grid-column: 1;
    }

    .purchase-b__supporter,
    .purchase-b__included {
        padding-inline: 1.25rem;
    }

    .purchase-b__included ul {
        gap: 0.35rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .purchase-button {
        transition: none;
    }
}