.learning-panel { max-width: 1100px; margin-inline: auto; padding-bottom: 40px; color: var(--text-hi); }
.learn-reminder { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; min-width: 23px; height: 23px; padding: 0 6px; border-radius: 999px; background: #1758c6; color: #fff !important; font: 700 12px/1 system-ui,sans-serif !important; letter-spacing: 0 !important; }
.learn-reminder[hidden] { display: none !important; }
.learning-panel [hidden] { display: none !important; }
.learn-intro { max-width: 760px; padding: 24px 0 32px; }
.learn-eyebrow { font: 400 .68rem/1.5 var(--mono); color: var(--text-mid); letter-spacing: .08em; }
.learn-intro h2 { font: 400 clamp(1.8rem, 4vw, 3rem)/1.18 var(--mono); margin: 16px 0; max-width: 23ch; }
.learning-panel p { font-family: var(--sans); font-size: 1rem; line-height: 1.8; color: var(--text); overflow-wrap: anywhere; }
.learn-intro p { max-width: 60ch; }
.learn-course-head { display: grid; grid-template-columns: 1fr minmax(180px, 240px); gap: 24px; border-top: 1px solid var(--line-strong); padding: 26px 0 12px; }
.learn-course-head h3 { margin: 8px 0; font: 400 1.3rem/1.4 var(--mono); }
.learn-course-head p, .learning-panel .learn-pace { font-size: .88rem; color: var(--text-mid); }
.learn-progress { display: grid; gap: 8px; align-content: center; font: 400 .8rem/1.5 var(--mono); }
.learn-progress strong { font-weight: 400; }
.learn-progress progress { appearance: none; width: 100%; height: 8px; border: none; background: var(--bg-raised); accent-color: var(--gold); border-radius: 4px; overflow: hidden; }
.learn-progress progress::-webkit-progress-bar { background: var(--bg-raised); }
.learn-progress progress::-webkit-progress-value { background: var(--gold); }
.learn-progress progress::-moz-progress-bar { background: var(--gold); }
.learn-toolbar { display: flex; flex-wrap: wrap; gap: 12px; margin: 12px 0; }
.learning-panel button { min-height: 44px; white-space: normal; }
.learning-panel button:focus-visible, .learning-panel summary:focus-visible, .learning-panel input:focus-visible, .learning-panel a:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }
.learn-lesson-list { list-style: none; padding: 0; margin: 16px 0 28px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.learn-lesson-list button { display: flex; gap: 14px; width: 100%; padding: 16px; text-align: left; text-transform: none; background: var(--bg-panel); border: 1px solid var(--line-strong); color: var(--text-hi); font: 400 .86rem/1.6 var(--sans); }
.learn-lesson-list button[aria-current="step"] { border-color: var(--gold); }
.learn-lesson-list small { display: block; color: var(--text-mid); margin-top: 4px; }
.learn-reader { background: var(--bg-panel); border: 1px solid var(--line-strong); border-top: 2px solid var(--gold); padding: clamp(20px, 5vw, 52px); margin: 28px 0; }
.learn-reader > p, .learn-reader > div, .learn-reader > form { max-width: 70ch; }
.learn-reader-top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
#learn-complete-tag { color: var(--text-mid); font-size: .8rem; }
.learn-reader h3 { margin: 18px 0; font: 400 clamp(1.4rem, 3vw, 2.1rem)/1.35 var(--mono); overflow-wrap: anywhere; }
.learn-reader h4 { font: 500 1.06rem/1.5 var(--sans); color: var(--text-hi); margin: 28px 0 8px; }
.learning-panel .learn-goal { color: var(--text-mid); margin-bottom: 26px; }
.learn-formula, .learn-practice { background: var(--bg-inset); border-left: 2px solid var(--gold); padding: 18px 22px; margin: 24px 0; }
.learn-formula p { font: 400 1rem/1.8 var(--mono); margin-bottom: 0; }
.learn-practice h4 { margin-top: 0; }
.learn-practice p { margin-bottom: 0; }
.learning-panel .learn-takeaway { color: var(--text-hi); font-weight: 600; }
#learn-quiz { border-top: 1px solid var(--line-strong); margin-top: 30px; }
#learn-quiz fieldset { padding: 0; margin: 24px 0; border: none; min-width: 0; }
#learn-quiz legend { font: 500 1rem/1.6 var(--sans); margin-bottom: 12px; color: var(--text-hi); }
#learn-quiz label { display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 12px 14px; margin: 8px 0; border: 1px solid var(--line-strong); color: var(--text); background: var(--bg-inset); font: 400 1rem/1.6 var(--sans); cursor: pointer; }
#learn-quiz input { width: 18px; height: 18px; flex: 0 0 18px; margin: 0; accent-color: var(--gold); }
.learn-feedback { margin: 24px 0; }
.learn-feedback p { border-left: 2px solid var(--line-strong); padding: 10px 16px; }
.learn-feedback .learn-passed { border-color: var(--gold); }
.learn-roadmap { border-top: 1px solid var(--line-strong); padding: 18px 0; }
.learn-roadmap summary { cursor: pointer; min-height: 44px; font: 400 .88rem/1.6 var(--mono); padding: 10px 0; }
.learn-roadmap p { max-width: 70ch; }
.learn-roadmap a { color: var(--text-hi); text-decoration: underline; text-underline-offset: 3px; }
.learn-roadmap li { margin: 12px 0; }
@media (max-width: 650px) {
  .learn-course-head { grid-template-columns: 1fr; gap: 10px; }
  .learn-progress { max-width: none; }
  .learn-lesson-list { grid-template-columns: 1fr; }
  .learn-toolbar > button { flex: 1 1 150px; }
  .learn-reader { padding: 20px 16px; }
  .learn-formula, .learn-practice { padding: 16px; }
  .learning-panel p { font-size: 16px; }
}