/* The learning talk belongs to the light personal site. */
body.learn { scroll-behavior: smooth; }
body.learn .learn-page { padding-top: clamp(70px, 9vw, 112px); padding-bottom: 72px; }
.learn-page a { text-underline-offset: .24em; }
.learn-page button, body.learn .talk-controls button, body.learn .notes-drawer button { font: inherit; cursor: pointer; }
.learn-page button:focus-visible, .learn-page a:focus-visible, body.learn .talk-controls button:focus-visible, body.learn .notes-drawer :focus-visible { outline: 3px solid #638c78; outline-offset: 3px; }
.learn-intro { max-width: 850px; }
.learn-intro .home-kicker { margin-bottom: 24px; }
.learn-intro h1 { max-width: 850px; font-size: clamp(3.2rem, 6.8vw, 4.7rem); line-height: 1.04; letter-spacing: -.055em; margin-bottom: 28px; }
.learn-intro > p:not(.home-kicker) { max-width: 740px; font-size: clamp(1.13rem, 1.6vw, 1.35rem); line-height: 1.54; margin-bottom: 30px; }
.learn-intro-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 28px 0 50px; }
.learn-intro-actions button, .learn-deck-links a, .learn-actions button, .notes-actions button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 18px; border: 1px solid #17302e; border-radius: 7px; background: transparent; color: #17302e; text-decoration: none; font-family: var(--sans); font-size: 15px; font-weight: 650; line-height: 1.2; }
.learn-intro-actions button:first-child, .learn-actions button:first-child, .notes-actions button { background: #17302e; color: #fffefb; }
.learn-intro-actions button:hover, .learn-deck-links a:hover, .learn-actions button:hover, .notes-actions button:hover { background: #eaf1ec; color: #17302e; }
.learn-intro-actions button:first-child:hover, .learn-actions button:first-child:hover, .notes-actions button:hover { background: #315149; color: #fff; }
#notes-count:not(:empty) { margin-left: 6px; padding: 2px 6px; border-radius: 20px; background: #e8eee9; color: #17302e; font-size: 12px; }
.learn-question { max-width: 750px; padding: 22px 26px; border: 1px solid #d9e3dc; border-left: 4px solid #5f7d57; border-radius: 8px; background: #f7faf6; }
.learn-question span, .learn-heading > span, .learn-concept-text > span, .learn-work-detail > span, .learn-product div > span, .learn-reveal span, .learn-comparison article > span { display: block; font-family: var(--sans); font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: #60716d; }
.learn-question p { margin: 6px 0 0; color: #17302e !important; font-size: 1.14rem; line-height: 1.5; }
.learn-jump { margin: 80px 0 20px; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); border-top: 1px solid #e7e0d6; border-left: 1px solid #e7e0d6; }
.learn-jump a { min-height: 76px; padding: 15px 16px; display: flex; flex-direction: column; justify-content: center; gap: 3px; border-right: 1px solid #e7e0d6; border-bottom: 1px solid #e7e0d6 !important; text-decoration: none; color: #17302e; font-size: .9rem; font-weight: 600; line-height: 1.25; }
.learn-jump a span { color: #71817d; font-size: .74rem; font-weight: 650; }
.learn-jump a:hover, .learn-jump a[aria-current="step"] { background: #f1f6ef; }
.learn-section, .learn-resources { padding: 88px 0 72px; border-bottom: 1px solid #e7e0d6; scroll-margin-top: 24px; }
.learn-heading { max-width: 780px; margin-bottom: 35px; }
.learn-heading h2 { margin: 12px 0 14px; font-size: clamp(2rem, 3.6vw, 2.55rem); line-height: 1.14; letter-spacing: -.035em; }
.learn-heading p { max-width: 710px; margin: 0; font-size: 1.12rem; line-height: 1.58; }
.learn-products { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.learn-products.learn-single { grid-template-columns: minmax(0,1fr); }
.learn-product { display: grid; grid-template-columns: 1.16fr 1fr; overflow: hidden; min-height: 330px; border: 1px solid #e7e0d6; border-radius: 12px; background: #fff; }
.learn-shot { display: flex; min-width: 0; flex-direction: column; overflow: hidden; border: 0 !important; text-decoration: none; background: #edf5f3; }
.learn-shot img { display: block; width: 100%; height: 100%; min-height: 300px; object-fit: cover; object-position: center; background: #edf5f3; }
.learn-shot span { padding: 8px 12px; border-top: 1px solid #e7e0d6; background: #fff; color: #60716d; font-size: .76rem; line-height: 1.3; }
.learn-shot:hover span { color: #17302e; text-decoration: underline; }
.learn-product > div { padding: clamp(22px, 3vw, 34px); align-self: center; }
.learn-product h3 { margin: 8px 0 14px; font-size: 1.7rem; }
.learn-product p { margin-bottom: 19px; line-height: 1.55; }
.learn-product a { font-weight: 650; }
.learn-aside { margin: 24px 0 0; padding: 22px 26px; border: 1px solid #e7e0d6; border-radius: 10px; background: #f8f5ef; color: #4b5d59; }
.learn-aside strong { display: block; margin-bottom: 8px; color: #17302e; font-size: 1.08rem; }
.learn-aside p { margin: 0 0 10px; font-size: 1rem; }
.learn-aside p:last-child { margin-bottom: 0; }
.learn-revision { display: grid; grid-template-columns: 1fr minmax(180px,35%); gap: 24px; align-items: center; }
.learn-revision img { width: 100%; max-height: 200px; object-fit: contain; object-position: top; border: 1px solid #e7e0d6; border-radius: 6px; background: white; }
.learn-small { font-size: .88rem; line-height: 1.5; margin-top: 18px; color: #66746f !important; }
.learn-reveal { display: grid; grid-template-columns: 1fr 1.3fr; border: 1px solid #e0e8e1; border-radius: 12px; overflow: hidden; }
.learn-reveal > div, .learn-reveal > details { padding: 32px; }
.learn-reveal-front { display: flex; flex-direction: column; justify-content: space-between; min-height: 260px; background: #17302e; color: white; }
.learn-reveal-front span { color: #b9d1c5; }
.learn-reveal-front strong { font-size: clamp(2rem,4vw,3.4rem); letter-spacing: -.045em; line-height: 1.08; max-width: 270px; }
.learn-reveal-behind { min-height: 260px; background: #f1f6ef; }
.learn-reveal-behind:not([open]) { display: flex; align-items: center; }
.learn-reveal-behind summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; width: 100%; cursor: pointer; list-style: none; color: #17302e; font-size: clamp(1.5rem, 2.8vw, 2.15rem); font-weight: 700; letter-spacing: -.035em; line-height: 1.16; }
.learn-reveal-behind summary::-webkit-details-marker { display: none; }
.learn-reveal-behind summary::after { content: "+"; flex: none; width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid #9aae9e; border-radius: 50%; font-size: 1.7rem; font-weight: 400; letter-spacing: 0; }
.learn-reveal-behind[open] { background: #eaf1ec; }
.learn-reveal-behind[open] summary { font-size: 1.2rem; letter-spacing: 0; }
.learn-reveal-behind[open] summary::after { content: "−"; font-size: 1.3rem; }
.learn-reveal-behind ol { margin: 18px 0 0; padding-left: 1.5em; color: #17302e; font-size: 1.12rem; line-height: 1.7; }
.learn-tabs { display: flex; gap: 8px; flex-wrap: wrap; border-bottom: 1px solid #e7e0d6; }
.learn-tabs button { margin-bottom: -1px; min-height: 46px; padding: 8px 16px; border: 0; border-bottom: 3px solid transparent; background: transparent; color: #60716d; font-size: .98rem; font-weight: 650; }
.learn-tabs button[aria-selected="true"] { border-bottom-color: #17302e; color: #17302e; }
.learn-concept { display: grid; grid-template-columns: 1.4fr .9fr; gap: 20px; padding: 28px; border: 1px solid #e7e0d6; border-top: 0; border-radius: 0 0 10px 10px; }
.learn-concept h3 { margin: 6px 0 12px; font-size: 1.6rem; }
.learn-concept p { margin: 0 0 12px; }
#concept-analogy { font-size: .95rem; color: #60716d; }
#concept-art { min-height: 170px; display: flex; justify-content: center; align-items: center; gap: 12px; padding: 20px; border-radius: 8px; background: #edf5f3; text-align: center; font-size: .8rem; font-weight: 750; letter-spacing: .08em; color: #17302e; }
#concept-art span { color: #5f7d57; font-size: 1.2rem; }
.learn-more, .learn-detail { margin-top: 24px; border-top: 1px solid #e7e0d6; }
.learn-more details, .learn-detail { border-bottom: 1px solid #e7e0d6; }
.learn-more summary, .learn-detail summary { padding: 17px 2px; cursor: pointer; color: #17302e; font-weight: 650; font-size: 1rem; }
.learn-more details p, .learn-detail > p, .learn-detail > ol, .learn-detail .learn-three { max-width: 780px; margin: 0 0 22px; line-height: 1.58; }
.learn-work { display: grid; grid-template-columns: minmax(210px,.8fr) 1.8fr; border: 1px solid #e7e0d6; border-radius: 10px; overflow: hidden; }
.learn-work-list { display: flex; flex-direction: column; background: #f8f5ef; border-right: 1px solid #e7e0d6; }
.learn-work-list button { padding: 15px 20px; text-align: left; border: 0; border-bottom: 1px solid #e7e0d6; background: transparent; color: #17302e; font-weight: 650; }
.learn-work-list button:last-child { border-bottom: 0; }
.learn-work-list button:hover, .learn-work-list button.active { background: #eaf1ec; }
.learn-work-list small { display: block; font-size: .84rem; font-weight: 400; color: #60716d; }
.learn-work-detail { padding: clamp(24px,4vw,40px); min-height: 300px; }
.learn-work-detail h3 { margin: 10px 0 16px; font-size: 1.65rem; }
.learn-work-detail blockquote { margin: 24px 0 0; padding-left: 18px; border-left: 3px solid #5f7d57; color: #17302e; font-size: 1.08rem; }
.learn-three { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.learn-comparison { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.learn-comparison article { padding: 28px; border: 1px solid #e7e0d6; border-radius: 10px; background: #fff; }
.learn-comparison article:last-child { background: #f1f6ef; }
.learn-comparison article > p { margin: 20px 0; font-weight: 650; color: #17302e; }
.learn-comparison blockquote { margin: 0; padding: 16px 0 0; border-top: 1px solid #e7e0d6; font-size: 1rem; line-height: 1.6; }
.learn-worksheet { display: grid; grid-template-columns: 1.05fr .95fr; gap: 20px; align-items: start; }
.learn-worksheet form, .learn-result { padding: 26px; border: 1px solid #e7e0d6; border-radius: 10px; background: #fff; }
.learn-worksheet label { display: block; margin-bottom: 20px; color: #17302e; font-size: .98rem; font-weight: 650; }
.learn-worksheet label:last-child { margin-bottom: 0; }
.learn-worksheet textarea, .notes-drawer textarea, .notes-drawer select { display: block; width: 100%; margin-top: 7px; padding: 11px 12px; border: 1px solid #cbd5ce; border-radius: 6px; background: #fff; color: #17302e; font: inherit; font-size: 1rem; line-height: 1.5; resize: vertical; }
.learn-worksheet textarea:focus, .notes-drawer textarea:focus, .notes-drawer select:focus { outline: 2px solid #638c78; outline-offset: 1px; }
.learn-result { position: sticky; top: 16px; background: #f8f5ef; }
.learn-result h3 { margin: 0 0 18px; }
.learn-result pre { min-height: 240px; padding: 18px; border: 1px solid #e7e0d6; border-radius: 6px; background: white; color: #17302e; white-space: pre-wrap; overflow-wrap: anywhere; font: 14px/1.55 var(--sans); }
.learn-actions, .learn-deck-links { display: flex; gap: 10px; flex-wrap: wrap; }
#brief-status { margin: 10px 0 0; min-height: 1.5em; font-size: .9rem; }
.learn-resources { border-bottom: 0; }
.learn-reading { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.learn-reading a { display: flex; min-height: 125px; flex-direction: column; gap: 8px; padding: 19px; border: 1px solid #e7e0d6 !important; border-radius: 8px; text-decoration: none; background: #fff; }
.learn-reading a:hover { background: #f1f6ef; }
.learn-reading strong { color: #17302e; font-size: .98rem; }
.learn-reading span { color: #60716d; font-size: .9rem; line-height: 1.45; }
.learn-backup { margin-top: 40px; }
.learn-deck-links { margin: 14px 0 20px; }
.learn-deck-links a { font-size: .88rem; }
.learn-pdf { width: 100%; height: min(70vh,650px); border: 1px solid #e7e0d6; border-radius: 8px; overflow: hidden; background: white; }
.learn-pdf iframe { width: 100%; height: 100%; border: 0; }
body.learn .talk-controls[hidden], body.learn .notes-scrim[hidden] { display: none; }
body.learn .talk-controls { position: fixed; z-index: 90; left: 50%; bottom: 14px; transform: translateX(-50%); display: flex; align-items: center; gap: 12px; padding: 10px; border: 1px solid #44615a; border-radius: 9px; background: #17302e; box-shadow: 0 10px 35px #17302e44; color: white; font-family: var(--sans); }
body.learn .talk-controls button { min-height: 42px; padding: 8px 12px; border: 1px solid #739083; border-radius: 6px; background: transparent; color: white; white-space: nowrap; font-size: .9rem; }
body.learn .talk-controls button:hover { background: #315149; }
body.learn .talk-controls button:disabled { opacity: .45; cursor: not-allowed; }
body.learn .talk-controls #talk-status { min-width: 92px; text-align: center; font-size: .85rem; white-space: nowrap; }
body.learn.talk-active .learn-heading h2 { font-size: clamp(2.4rem,4.8vw,3.4rem); }
body.learn.talk-active .learn-chapter { min-height: 72vh; }
body.learn.talk-active .learn-heading p, body.learn.talk-active .learn-product p, body.learn.talk-active .learn-question p { font-size: clamp(1.15rem,1.8vw,1.35rem); }
body.learn.talk-active .learn-page { padding-bottom: 120px; }
body.learn .notes-scrim { position: fixed; z-index: 100; inset: 0; background: #10231d77; }
body.learn .notes-drawer { position: fixed; z-index: 101; top: 0; right: 0; width: min(440px,100vw); height: 100vh; padding: 28px; background: #fffefb; color: #17302e; box-shadow: -10px 0 32px #10231d33; transform: translateX(110%); transition: transform .25s ease; overflow-y: auto; font-family: var(--sans); }
body.learn .notes-drawer.open { transform: translateX(0); }
body.learn .notes-head { display: flex; justify-content: space-between; align-items: center; }
body.learn .notes-head h2 { margin: 0; font-size: 1.8rem; }
body.learn .notes-head button { border: 0; background: transparent; color: #17302e; font-size: 2rem; line-height: 1; }
body.learn .notes-drawer > p { margin: 18px 0 28px; font-size: .98rem; }
body.learn .notes-drawer label { display: block; margin-top: 18px; font-size: .9rem; font-weight: 650; }
body.learn .notes-drawer textarea { min-height: 230px; }
body.learn .notes-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
body.learn .notes-actions small { color: #60716d; }
@media(max-width:760px) {
  body.learn .learn-page { padding-top: 70px; }
  .learn-jump { grid-template-columns: repeat(2,minmax(0,1fr)); margin-top: 64px; }
  .learn-section, .learn-resources { padding: 68px 0 55px; }
  .learn-product, .learn-reveal, .learn-concept, .learn-work, .learn-worksheet { grid-template-columns: 1fr; }
  .learn-reveal > div, .learn-reveal > details { padding: 24px; }
  .learn-shot img { min-height: 0; height: auto; max-height: 350px; object-fit: cover; }
  .learn-reveal-front { min-height: 200px; }
  .learn-work-list { border-right: 0; border-bottom: 1px solid #e7e0d6; display: grid; grid-template-columns: repeat(2,1fr); }
  .learn-work-list button { border-right: 1px solid #e7e0d6; }
  .learn-result { position: static; }
  .learn-revision { grid-template-columns: 1fr; }
  .learn-reading, .learn-three { grid-template-columns: 1fr; }
  .learn-comparison { grid-template-columns: 1fr; }
  body.learn .talk-controls { width: calc(100% - 18px); bottom: 9px; gap: 5px; justify-content: space-between; }
  body.learn .talk-controls button { padding: 7px 6px; font-size: .78rem; }
  body.learn .talk-controls #talk-status { min-width: 65px; font-size: .73rem; }
}
@media(max-width:440px) {
  .learn-jump a { padding: 13px; }
  .learn-concept, .learn-comparison article, .learn-work-detail, .learn-worksheet form, .learn-result { padding: 20px; }
  .learn-work-list button { padding: 12px; }
}
@media(max-width:360px) {
  body.learn .talk-controls button { flex: 1 1 auto; min-width: 0; }
  body.learn .talk-controls #talk-status {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}
@media(prefers-reduced-motion:reduce) { html { scroll-behavior: auto !important; } body.learn .notes-drawer { transition: none; } }