.problem-guide { --ink: #153b36; --paper: #f7f5ef; color: var(--ink); }
.problem-hero { background: var(--paper); border-bottom: 1px solid #d9ded5; padding: 64px 0 56px; }
.problem-hero__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.problem-hero h1 { font-size: clamp(36px, 4.3vw, 60px); line-height: 1.06; letter-spacing: -.04em; margin: 20px 0; max-width: 620px; }
.problem-hero .lede { font-size: 19px; max-width: 540px; margin: 0 0 28px; }
.problem-hero__terms { font-size: 13px; max-width: 400px; margin: 14px 0 20px; }
.problem-text-link { display: inline-block; text-underline-offset: 5px; }
.problem-hero__copy > .button + .problem-text-link { margin: 14px 0 0 16px; }
@media (max-width: 600px) { .problem-hero__copy > .button + .problem-text-link { margin-left: 0; } }
.problem-plan { margin: 0; padding: 24px 0; }
.problem-plan__label { display: block; font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; border-bottom: 1px solid #bacac2; padding-bottom: 18px; }
.problem-plan__image { display: block; width: 100%; height: auto; margin: 22px 0 18px; }
.problem-plan__keys { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid #bacac2; gap: 0 20px; }
.problem-plan__keys a { padding: 12px 0; font-size: 14px; text-decoration: none; border-bottom: 1px solid #d6dfd8; transition: color .15s, padding-left .15s; }
.problem-plan__keys a:hover { color: #17776b; padding-left: 5px; }
.problem-plan figcaption { font-size: 12px; margin-top: 18px; color: #546c62; }
.problem-search ol { list-style: none; padding: 0; margin: 0; }
.problem-search li { display: flex; gap: 24px; padding: 22px 0; border-bottom: 1px solid #d6dfd8; }
.problem-search li > span { font-size: 13px; color: #17776b; padding-top: 3px; }
.problem-search strong { display: block; font-size: 21px; }
.problem-search small { display: block; margin-top: 5px; font-size: 14px; color: #546c62; }
.problem-search > p { font-size: 12px; margin-top: 18px; color: #546c62; }
.problem-body__grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 80px; align-items: start; }
.problem-body h2, .problem-faq h2 { font-size: clamp(27px, 3vw, 36px); line-height: 1.16; margin: 12px 0 24px; letter-spacing: -.025em; }
.problem-body p, .problem-faq p { line-height: 1.75; }
.problem-step { display: flex; gap: 22px; padding: 24px 0; border-top: 1px solid #d6dfd8; scroll-margin-top: 110px; }
.problem-step > span { color: #17776b; font-size: 13px; padding-top: 4px; }
.problem-step h3 { margin: 0 0 10px; font-size: 21px; line-height: 1.3; }
.problem-step p { margin: 0; }
.problem-guide details { border-top: 1px solid #d6dfd8; padding: 21px 0; }
.problem-guide summary { cursor: pointer; font-size: 19px; font-weight: 700; line-height: 1.4; }
.problem-guide details p { margin: 14px 0; }
.problem-example { background: var(--paper); border-left: 3px solid #17776b; padding: 28px; margin: 30px 0; }
.problem-example h3 { font-size: 24px; line-height: 1.25; margin: 12px 0; }
.problem-example p { margin: 12px 0; }
.problem-note { font-size: 14px; color: #546c62; }
.problem-help { background: #153b36; color: #f7f5ef; padding: 32px; position: sticky; top: 100px; }
.problem-help h2 { font-size: 30px; }
.premium-site .problem-guide .problem-help h2,
.premium-site .problem-guide .problem-help h3 { color: #f7f5ef; }
.problem-help .eyebrow { color: #a4d8c7; }
.problem-help h3 { font-size: 16px; margin-top: 26px; }
.problem-help ul { padding-left: 18px; margin-bottom: 28px; line-height: 1.7; }
.problem-help li { margin: 9px 0; }
.problem-help .button { background: #b6e5d1; color: #153b36; text-align: center; }
.problem-help > a:last-child { color: #b6e5d1; font-size: 14px; }
.problem-help__terms { font-size: 13px; color: #c4d8cd; }
.problem-faq { background: var(--paper); }
.problem-sources { border-top: 1px solid #bacac2; padding-top: 16px; font-size: 14px; }
.problem-sources h3 { font-size: 18px; }
.problem-guide a:focus-visible, .problem-guide summary:focus-visible { outline: 3px solid #17776b; outline-offset: 5px; }
@media (max-width: 900px) {
  .problem-hero__inner { gap: 32px; }
  .problem-body__grid { gap: 32px; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); }
  .problem-help { padding: 24px; }
}
@media (max-width: 680px) {
  .problem-hero { padding: 32px 0; }
  .problem-hero__inner, .problem-body__grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .problem-hero h1 { font-size: 38px; }
  .problem-hero .lede { font-size: 17px; }
  .problem-hero .button { width: 100%; text-align: center; }
  .problem-plan { padding: 0; }
  .problem-help { position: static; }
  .problem-example { padding: 22px; }
  .problem-search li { padding: 18px 0; }
  .problem-guide summary { font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) { .problem-plan__keys a { transition: none; } }