/* A letter on a green desk. Scoped to the home-page subscription section. */
.letters-section { position: relative; isolation: isolate; overflow: hidden; padding: clamp(4rem, 8vw, 8rem) 0; background: var(--color-primary); border: 0; color: var(--color-text-on-primary); }
.letters-section::before { content: ''; position: absolute; inset: 0; z-index: -1; opacity: .06; background: repeating-linear-gradient(115deg, transparent 0 80px, var(--color-white) 80px 81px, transparent 81px 160px); pointer-events: none; }
.letters-postal-trail { position: absolute; z-index: -1; bottom: 0; left: 0; width: 100%; height: 60%; color: var(--color-text-on-primary); opacity: .2; pointer-events: none; }
.letters-postal-ornament { position: absolute; z-index: 0; fill: none; stroke: currentColor; stroke-width: 1.25; stroke-linecap: round; stroke-linejoin: round; color: var(--color-text-on-primary); pointer-events: none; }
.letters-postal-ornament * { vector-effect: non-scaling-stroke; }
.letters-postmark-ornament { top: 1.5rem; right: max(1rem, calc((100% - 1240px) / 2 - 3.5rem)); width: clamp(105px, 11vw, 160px); opacity: .18; transform: rotate(8deg); }
.letters-envelope-ornament { bottom: .8rem; left: max(1rem, calc((100% - 1240px) / 2 - 4rem)); width: clamp(125px, 14vw, 190px); opacity: .16; transform: rotate(-8deg); }
.letters-section .letters-container { position: relative; z-index: 1; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(3rem, 7vw, 7rem); align-items: center; }
.letters-eyebrow { display: flex; gap: .75rem; align-items: center; font: 500 .7rem/1.8 var(--font-sans); text-transform: uppercase; letter-spacing: .12em; color: var(--color-text-on-primary); opacity: .8; margin-bottom: 1.25rem; }
.letters-eyebrow svg { width: 26px; height: 26px; flex-shrink: 0; }
.letters-section .letters-copy .section-heading { font-size: clamp(2.5rem, 4.3vw, 4rem); font-weight: 400; line-height: 1.25; color: var(--color-text-on-primary); max-width: 12ch; margin-bottom: 1.75rem; }
.letters-section .letters-intro { font: 400 clamp(1.15rem, 1.65vw, 1.45rem)/1.7 var(--font-serif); max-width: 32ch; margin-bottom: 1.4rem; text-wrap: pretty; }
.letters-description { font: 300 .98rem/1.95 var(--font-serif); max-width: 46ch; color: var(--color-text-on-primary); }
.letters-description + .letters-description { margin-top: .9rem; }
.letters-signoff { display: flex; gap: 2rem; align-items: center; margin-top: 2rem; }
.letters-signoff img { width: 160px; height: auto; }
.letters-signoff > span { font: 300 .85rem/1.7 var(--font-serif); color: var(--color-text-on-primary); opacity: .85; }
.letters-mailer { position: relative; min-width: 0; padding: 1.5rem 1rem 3rem; isolation: isolate; }
.letters-mailer::before { content: ''; position: absolute; z-index: -1; inset: .5rem 1.5rem 4rem .25rem; transform: rotate(-4deg); background: var(--color-bg-alt); border: 1px solid var(--color-border); box-shadow: 0 5px 16px rgba(var(--color-black-rgb), .1); }
.letters-section .letters-signup { position: relative; padding: clamp(1.75rem, 3vw, 2.75rem); background: var(--color-bg-main); border: 1px solid var(--color-border); color: var(--color-text-main); box-shadow: 0 8px 24px rgba(var(--color-black-rgb), .1), 0 30px 60px rgba(var(--color-black-rgb), .12); }
.letters-paper-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; padding-bottom: 1.5rem; margin-bottom: 1.6rem; border-bottom: 1px solid var(--color-border); }
.letters-paper-header > span { font: 500 .65rem/1.8 var(--font-sans); text-transform: uppercase; letter-spacing: .09em; color: var(--color-text-muted); padding-top: .25rem; }
.letters-paper-header strong { display: inline-block; font-weight: 600; color: var(--color-primary); margin-top: .35rem; }
.letters-stamp { width: 58px; height: 66px; color: var(--color-accent-light); flex-shrink: 0; transform: rotate(5deg); }
.letters-form-title { font: 400 clamp(1.3rem, 1.9vw, 1.7rem)/1.5 var(--font-serif); color: var(--color-primary); margin-bottom: 1.5rem; text-wrap: balance; }
.letters-section .letters-form { gap: .7rem; }
.letters-section .newsletter-email-label { font: 600 .78rem/1.7 var(--font-sans); color: var(--color-text-main); }
.letters-section .letters-input { min-height: 56px; padding: .9rem 1rem; font: 400 1rem/1.6 var(--font-sans); border-color: var(--color-border-hover); background: var(--color-bg-alt); }
.letters-section .letters-input-icon { display: none; }
.letters-section .letters-input:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-color: var(--color-primary); }
.letters-section .letters-input[aria-invalid="true"] { outline: 2px solid var(--color-text-main); outline-offset: 3px; }
.letters-section .newsletter-submit-btn { min-height: 54px; margin-top: .35rem; padding: .9rem 1rem; line-height: 1.4; }
.letters-section .newsletter-submit-btn:disabled { opacity: .65; cursor: wait; }
.letters-section .newsletter-feedback { color: var(--color-text-main); margin-top: .25rem; }
.letters-section .letters-note { margin-top: 1.35rem; font: 400 .77rem/1.85 var(--font-serif); color: var(--color-text-muted); }
.letters-privacy { margin-top: .9rem; padding-top: .9rem; border-top: 1px solid var(--color-border); font: 400 .65rem/1.8 var(--font-sans); color: var(--color-text-muted); }
.letters-privacy a { color: var(--color-primary); text-underline-offset: 3px; }
.letters-section :focus-visible { outline-color: var(--color-primary); }
.letters-envelope { position: absolute; z-index: -1; inset: 45% .1rem 1rem; border: 1px solid var(--color-border-hover); background: var(--color-bg-alt); transform: rotate(3deg); }
.letters-envelope::before, .letters-envelope::after { content: ''; position: absolute; inset: 0; }
.letters-envelope::before { background: var(--color-border); clip-path: polygon(0 0, 50% 65%, 100% 0, 100% 100%, 0 100%); }
.letters-envelope::after { background: var(--color-bg-alt); clip-path: polygon(0 100%, 50% 40%, 100% 100%); }
@media (max-width: 991px) and (min-width: 768px) {
    .letters-section .letters-container { gap: 2rem; }
    .letters-section .letters-signup { padding: 1.5rem; }
    .letters-section .letters-copy .section-heading { font-size: 2.6rem; }
    .letters-signoff { gap: 1rem; }
    .letters-signoff img { width: 140px; }
    .letters-section .newsletter-submit-btn { font-size: .72rem; }
}
@media (max-width: 767px) {
    .letters-section { padding: 3.5rem 0; }
    .letters-section .letters-container { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
    .letters-section .letters-copy .section-heading { font-size: clamp(2.3rem, 8vw, 3rem); }
    .letters-section .letters-intro { font-size: 1.15rem; max-width: 35ch; }
    .letters-description { font-size: .93rem; }
    .letters-signoff { margin-top: 1.5rem; }
    .letters-mailer { padding: 1rem .5rem 2rem; width: 100%; max-width: 460px; margin-inline: auto; }
    .letters-section .letters-signup { padding: 1.5rem 1.25rem; margin: 0; }
    .letters-paper-header { padding-bottom: 1.1rem; margin-bottom: 1.2rem; }
    .letters-form-title { font-size: 1.3rem; }
    .letters-stamp { width: 48px; height: 55px; }
    .letters-mailer::before { inset: .5rem 1.25rem 3rem .6rem; transform: rotate(-3deg); }
    .letters-envelope { inset-inline: .5rem; }
    .letters-postmark-ornament { top: .75rem; right: -.75rem; width: 95px; opacity: .13; }
    .letters-envelope-ornament { display: none; }
    .letters-section .newsletter-submit-btn { font-size: .75rem; }
}