/* One shared offer page with five services and optional supporting detail. */
.offer-service { padding-block: 55px; }
.offer-service > .container { border-top: 1px solid var(--color-line); padding-top: 40px; }
.offer-service .section-head { position: relative; max-width: 900px; padding-left: 100px; }
.offer-service-number { position: absolute; left: 0; top: -4px; font-family: 'Kalam','Outfit',sans-serif; font-size: 3.5rem; line-height: 1; color: #78949b; }
.offer-service h2 { font-family: 'Kalam','Outfit',sans-serif; color: var(--color-accent); font-size: clamp(2rem,3.3vw,3rem); }
.offer-service .cards-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
.offer-service .info-card { padding-block: 20px; }
.offer-service .info-card h3 { font-size: 1.15rem; margin-bottom: 12px; }
.offer-service .info-card p { font-size: .95rem; }
.offer-details { margin-top: 28px; border-top: 1px solid var(--color-line); }
.offer-detail { border-bottom: 1px solid var(--color-line); }
.offer-detail > summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; list-style: none; font-size: 1.1rem; font-weight: 500; cursor: pointer; }
.offer-detail > summary::-webkit-details-marker { display: none; }
.offer-detail > summary::after { content: '+'; color: var(--color-primary); font-size: 1.5rem; }
.offer-detail[open] > summary::after { content: '−'; }
.offer-detail-body { padding-bottom: 22px; max-width: 75ch; font-size: .95rem; }
.offer-detail-body ul + p { margin-top: 16px; }
.offer-contact { background: #eef1ed; margin-top: 35px; padding-block: 55px; }
.offer-contact > .container { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 50px; }
.offer-contact h2 { font-family: 'Kalam','Outfit',sans-serif; color: var(--color-accent); font-size: 2.5rem; margin-bottom: 15px; }
.offer-contact p { max-width: 60ch; }
@media(max-width:600px) {
 .offer-service { padding-block: 25px; }
 .offer-service > .container { padding-top: 28px; }
 .offer-service .section-head { padding-left: 55px; }
 .offer-service-number { font-size: 2.6rem; }
 .offer-service .cards-grid { grid-template-columns: 1fr; }
 .offer-contact > .container { grid-template-columns: 1fr; gap: 25px; justify-items: start; }
}

/* Shared editorial layout for the three content pages. */
.offer-service .section-head:not(:has(.offer-service-number)) { padding-left: 0; }
.content-note { margin-top: 28px; max-width: 78ch; color: var(--color-muted); font-size: .95rem; }
.offer-service .info-card p + p { margin-top: 14px; }
.offer-service .info-card .text-link { display: inline-block; margin-top: 18px; }
.seminar-list { border-top: 1px solid var(--color-line); }
.seminar-row { display: grid; grid-template-columns: 55px minmax(0,1fr) auto; align-items: start; gap: 30px; padding-block: 32px; border-bottom: 1px solid var(--color-line); }
.seminar-number { color: #78949b; font-family: 'Kalam',sans-serif; font-size: 2rem; line-height: 1.3; }
.seminar-row h3 { font-size: clamp(1.25rem,2vw,1.6rem); margin-bottom: 14px; line-height: 1.3; }
.seminar-row p { max-width: 75ch; }
.seminar-row .seminar-meta { margin-top: 16px; font-size: .9rem; color: var(--color-primary); }
.seminar-row > .text-link { white-space: nowrap; margin-top: 6px; }
@media(max-width:600px) {
 .seminar-row { grid-template-columns: 32px minmax(0,1fr); gap: 16px; padding-block: 25px; }
 .seminar-row > .text-link { grid-column: 2; justify-self: start; margin-top: 0; }
 .seminar-number { font-size: 1.5rem; }
}