/* Beginner guide system. Scoped to the guide family; existing tool styles are untouched. */
.learn-site {
  --ink: #112744;
  --muted: #51647a;
  --link: #095db6;
  --focus: #0862e8;
  --line: #dce5ef;
  background: #fff;
  color: var(--ink);
}
.learn-site .site-header__inner {
  min-height: 76px;
}
.learn-site .site-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.learn-site .site-nav a[aria-current] {
  color: #095db6;
}
.learn-site .learn-menu {
  width: auto;
  flex: 0 0 auto;
  box-shadow: none;
  border: 1px solid #bacbdb;
  background: #fff;
  color: var(--ink);
  border-radius: 8px;
  min-height: 44px;
  padding: 6px 12px;
  cursor: pointer;
}
.learn-no-script-nav {
  display: none;
}
.learn-site .site-footer__inner > p {
  color: #51647a;
  font-size: 13px;
}
.learn-site .site-footer nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: #365371;
}
.learn-site .site-footer .guide-footer-brand span {
  color: #51647a;
}
.learn-site a,
.learn-site button,
.learn-site summary {
  -webkit-tap-highlight-color: transparent;
}
.learn-site :focus-visible {
  outline: 3px solid #0862e8;
  outline-offset: 4px;
}
.learn-site .skip-link:focus {
  position: fixed;
  z-index: 30;
}
.learn-main {
  padding: 0 0 72px;
}
.learn-shell {
  width: min(calc(100% - 80px), 1200px);
  margin-inline: auto;
}
.learn-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 26px 0 0;
  font-size: 14px;
  color: #53677e;
}
.learn-breadcrumb a {
  text-decoration: none;
  padding-block: 8px;
}
.learn-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  align-items: center;
  gap: 60px;
  padding: 34px 0 48px;
  border-bottom: 1px solid var(--line);
}
.learn-eyebrow {
  margin: 0 0 16px;
  color: #095db6;
  font-weight: 750;
  font-size: 14px;
  letter-spacing: 0.045em;
}
.learn-hero h1 {
  margin: 0;
  font-size: clamp(32px, 3.1vw, 44px);
  line-height: 1.5;
  letter-spacing: -0.035em;
  font-weight: 800;
  overflow-wrap: anywhere;
}
.learn-short {
  margin: 18px 0 24px;
  color: #51647a;
  font-size: 16px;
}
.learn-answer {
  padding: 18px 22px;
  border-left: 3px solid #1774dc;
  background: #f2f7ff;
  border-radius: 0 10px 10px 0;
}
.learn-answer > span {
  color: #095db6;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
}
.learn-answer p {
  margin: 7px 0 0;
  color: #1e3b60;
  font-size: 17px;
  line-height: 1.9;
}
.learn-hero__visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 300px;
  padding: 28px;
  border-radius: 26px;
  background: radial-gradient(ellipse at 50% 35%, #deedff 0%, #f3f8ff 55%, #fff 78%);
}
.learn-hero__visual > p {
  text-align: center;
  margin: 22px 0 0;
  font-size: 15px;
  font-weight: 650;
  color: #385a81;
}
.hero-port {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.hero-port > strong {
  font-size: 21px;
}
.usb-port {
  display: block;
  position: relative;
  width: 180px;
  height: 68px;
  border: 6px solid #8d9dac;
  border-radius: 40px;
  background: linear-gradient(180deg, #111d2f, #314052);
  box-shadow:
    0 2px 0 2px #dce3e8,
    0 15px 22px #243d5c22,
    inset 0 3px 4px #0009;
}
.usb-port::after {
  content: "";
  position: absolute;
  height: 12px;
  top: 22px;
  left: 28px;
  right: 28px;
  border-radius: 8px;
  background: linear-gradient(#567993, #a2b8c6);
  box-shadow: 0 2px 3px #0008;
}
.hero-capabilities {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 26px;
}
.hero-capabilities > span {
  background: #fff;
  border: 1px solid #d3e1ef;
  border-radius: 8px;
  padding: 8px 13px;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 6px 14px #173d6a08;
}
.hero-capabilities > span:first-child {
  color: #086753;
}
.hero-capabilities > span:nth-of-type(2) {
  color: #0961b9;
}
.hero-capabilities > span:nth-of-type(3) {
  color: #6543a2;
}
.hero-capabilities b {
  color: #7c96b1;
}
.hero-power {
  display: flex;
  gap: 30px;
  align-items: center;
}
.hero-power .mini-device--charger {
  transform: scale(1.6);
  margin-inline: 12px;
}
.hero-power small {
  display: block;
  font-size: 13px;
  color: #51647a;
}
.hero-power strong {
  display: block;
  font-size: 70px;
  font-weight: 800;
  color: #095db6;
  line-height: 1.4;
  letter-spacing: -0.055em;
}
.hero-power strong span {
  font-size: 32px;
  margin-left: 4px;
}
.hero-screen {
  width: 260px;
  height: 157px;
  border: 8px solid #263b51;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, #d0e8fe, #f6fbff 60%, #b4d3f0);
  box-shadow: 0 16px 24px #28486820;
  position: relative;
}
.hero-screen::after {
  content: "";
  position: absolute;
  width: 85px;
  height: 14px;
  background: #9cabb8;
  border-radius: 2px 2px 7px 7px;
  bottom: -24px;
  left: 50%;
  transform: translateX(-50%);
}
.hero-screen span {
  font-size: 14px;
  font-weight: 650;
}
.hero-art--video .hero-capabilities {
  margin-top: 42px;
  gap: 8px;
}
.hero-art--video .hero-capabilities span {
  padding: 6px 9px;
}
.hero-cables {
  display: flex;
  gap: 60px;
  height: 130px;
  align-items: center;
  justify-content: center;
}
.hero-cables .mini-device--cable {
  transform: rotate(-32deg) scale(1.5);
}
.hero-cables .mini-device--cable:nth-child(2) {
  transform: rotate(-32deg) scale(1.5) translateY(20px);
}
.hero-spec {
  background: #fff;
  padding: 18px 24px;
  width: 285px;
  max-width: 100%;
  border: 1px solid #cfdeeb;
  border-radius: 12px;
  transform: rotate(-3deg);
  box-shadow: 0 15px 25px #19457414;
}
.hero-spec small {
  font-size: 12px;
  font-weight: 700;
}
.hero-spec p {
  margin: 10px 0 0;
  padding: 9px 8px;
  background: #f0f6fd;
  font-size: 14px;
  white-space: nowrap;
}
.hero-spec b {
  color: #095db6;
  margin-right: 14px;
}
.hero-names {
  display: flex;
  gap: 12px;
  margin-top: 25px;
}
.hero-names span {
  padding: 10px 18px;
  border: 1px solid #bccfe7;
  border-radius: 9px;
  background: #fff;
  color: #174d8f;
  font-weight: 700;
}
.hero-dock {
  display: flex;
  align-items: center;
  gap: 40px;
  min-height: 130px;
}
.hero-dock .mini-device {
  transform: scale(1.4);
}
.hero-dock b {
  color: #6e89a4;
}
.learn-layout {
  display: grid;
  grid-template-columns: 245px minmax(0, 760px);
  column-gap: 70px;
  justify-content: space-between;
  padding-top: 50px;
}
.learn-toc {
  align-self: start;
  position: sticky;
  top: 26px;
  font-size: 13px;
}
.learn-toc > p {
  font-size: 12px;
  color: #61758a;
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: 0.05em;
}
.learn-toc nav {
  display: grid;
  gap: 4px;
}
.learn-toc nav a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 9px;
  border-radius: 6px;
  line-height: 1.75;
  text-decoration: none;
  color: #425b76;
}
.learn-toc nav a span {
  color: #526b85;
  font-size: 11px;
  font-weight: 700;
}
.learn-toc nav a:hover,
.learn-toc nav a[aria-current="location"] {
  background: #edf5ff;
  color: #095db6;
}
.back-to-basics {
  display: block;
  border-top: 1px solid var(--line);
  margin-top: 22px;
  padding: 20px 9px;
  text-decoration: none;
}
.learn-prose {
  min-width: 0;
  color: #21384f;
  font-size: 17px;
  line-height: 1.95;
}
.learn-section {
  position: relative;
  scroll-margin-top: 28px;
  margin-bottom: 58px;
}
.section-index {
  color: #176fc5;
  font-size: 12px;
  font-weight: 750;
  margin: 0 0 8px !important;
  letter-spacing: 0.1em;
}
.learn-prose h2 {
  color: #112744;
  font-size: 26px;
  line-height: 1.6;
  letter-spacing: -0.025em;
  margin: 0 0 22px;
  overflow-wrap: anywhere;
}
.learn-prose h3 {
  color: #173553;
  font-size: 18px;
  line-height: 1.75;
  margin: 0 0 8px;
}
.learn-prose p {
  margin: 0 0 20px;
}
.learn-prose strong {
  font-weight: 750;
}
.learn-prose figure {
  margin: 26px 0;
}
.learn-prose figcaption,
.figure-note {
  color: #52677d;
  font-size: 14px;
  line-height: 1.8;
  padding-top: 20px;
}
.learn-prose .learn-source {
  font-size: 13px;
  color: #55697d;
  line-height: 1.8;
}
.learn-prose details {
  margin: 12px 0;
  border: 1px solid #d6e1ec;
  border-radius: 10px;
  background: #fff;
  overflow: hidden;
}
.learn-prose summary {
  position: relative;
  padding: 17px 20px;
  cursor: pointer;
  color: #1c466f;
  font-size: 15px;
  font-weight: 700;
}
.learn-prose details[open] summary {
  background: #f3f7fb;
  margin-bottom: 18px;
}
.learn-prose details > :not(summary) {
  margin-left: 20px;
  margin-right: 20px;
  font-size: 15px;
}
.learn-prose details p:last-child {
  margin-bottom: 22px;
}
.learn-takeaway {
  padding: 20px 24px;
  margin: 26px 0;
  border-left: 3px solid #2f8aab;
  background: #edf7fa;
}
.learn-takeaway p {
  margin: 8px 0 0;
}
.learn-example {
  margin: 28px 0;
  padding: 26px 30px;
  border: 1px solid #d6e4f2;
  border-radius: 14px;
  background: #f6f9fd;
}
.learn-example p:last-child {
  margin-bottom: 0;
}
.example-label {
  display: block;
  color: #536b83;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.03em;
  margin-bottom: 14px !important;
}
.lesson-figure {
  border: 1px solid #d8e5f1;
  border-radius: 18px;
  background: #f4f8fe;
  padding: 28px;
}
.connection-chain {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 22px minmax(0, 1fr) 22px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
}
.connection-chain > div {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 16px 5px;
  border-radius: 12px;
}
.connection-chain strong {
  margin-top: 18px;
  font-size: 16px;
}
.connection-chain small {
  font-size: 13px;
  color: #52677d;
  margin-top: 2px;
}
.connection-chain > b {
  font-size: 20px;
  color: #587c9e;
  text-align: center;
}
.mini-device {
  display: block;
  position: relative;
  flex-shrink: 0;
  margin: 6px auto;
}
.mini-device--laptop {
  width: 80px;
  height: 51px;
  background: linear-gradient(140deg, #b4ddff, #ecf7ff 50%, #86b6e3);
  border: 5px solid #29445d;
  border-radius: 6px;
}
.mini-device--laptop::after {
  content: "";
  position: absolute;
  left: -12px;
  right: -12px;
  bottom: -10px;
  height: 7px;
  background: #9cafbe;
  border-radius: 1px 1px 9px 9px;
  box-shadow: 0 4px 5px #1d36571c;
}
.mini-device--screen {
  width: 82px;
  height: 51px;
  background: linear-gradient(145deg, #b4ddff, #ecf7ff 50%, #86b6e3);
  border: 5px solid #29445d;
  border-radius: 5px;
}
.mini-device--screen::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 8px;
  bottom: -13px;
  left: 22px;
  border-radius: 2px;
  background: #92a5b6;
}
.mini-device--charger {
  width: 48px;
  height: 59px;
  background: linear-gradient(105deg, #435465, #1b2c3e);
  border-radius: 9px;
  box-shadow:
    inset 2px 2px 1px #9eabb3,
    5px 6px 9px #23385820;
}
.mini-device--charger::before {
  content: "";
  position: absolute;
  width: 20px;
  height: 7px;
  border: 2px solid #9babb8;
  border-radius: 5px;
  background: #192b3b;
  top: 18px;
  left: 12px;
}
.mini-device--charger::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 7px;
  border: 2px solid #9babb8;
  border-radius: 5px;
  background: #192b3b;
  top: 33px;
  left: 12px;
}
.mini-device--cable {
  width: 75px;
  height: 28px;
  margin-top: 22px;
  margin-bottom: 22px;
  background: linear-gradient(#cbd5dd, #8d9fad);
  border: 1px solid #91a2b1;
  border-radius: 10px;
  transform: rotate(-12deg);
}
.mini-device--cable::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  width: 23px;
  height: 10px;
  background: #162c41;
  border: 2px solid #dce4eb;
  border-radius: 7px;
}
.mini-device--cable::after {
  content: "";
  position: absolute;
  left: 58px;
  top: 8px;
  width: 38px;
  height: 10px;
  background: #334b5f;
  border-radius: 0 5px 5px 0;
}
.mini-device--dock {
  width: 95px;
  height: 39px;
  background: linear-gradient(#cdd8e1, #a5b6c4);
  border: 1px solid #93a5b7;
  border-radius: 8px;
  box-shadow: 5px 6px 10px #243d5c1a;
}
.mini-device--dock::before {
  content: "";
  position: absolute;
  width: 17px;
  height: 7px;
  border-radius: 5px;
  background: #273b50;
  left: 11px;
  top: 15px;
  box-shadow:
    25px 0 #273b50,
    50px 0 #273b50;
}
.capabilities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
  margin: 30px 0;
}
.capabilities > div {
  min-width: 0;
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.capabilities h3 {
  margin-top: 14px;
}
.capabilities p {
  font-size: 15px;
  line-height: 1.85;
}
.cap-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  font-size: 26px;
  font-family: system-ui, sans-serif;
  font-weight: 650;
  line-height: 1;
}
.cap-icon--power {
  color: #08755f;
  background: #dff4ec;
}
.cap-icon--video {
  color: #0966bf;
  background: #e0eeff;
}
.cap-icon--data {
  color: #6846a4;
  background: #eee6fa;
}
.reading-routes {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.reading-routes a {
  padding: 20px 4px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  justify-content: space-between;
}
.reading-routes span {
  font-size: 14px;
}
.plain-definitions dt {
  font-weight: 750;
  color: #173b5e;
}
.plain-definitions dd {
  margin: 5px 0 20px;
}
.power-ceiling {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 25px 0 0 !important;
  padding: 20px;
  background: #fff;
  border: 1px solid #d9e6f5;
  border-radius: 12px;
  text-align: center;
}
.power-ceiling > span {
  font-size: 13px;
  font-weight: 650;
}
.power-ceiling > strong {
  font-size: 52px;
  line-height: 1.3;
  letter-spacing: -0.055em;
  color: #0966c6;
}
.power-ceiling > small {
  font-size: 14px;
  min-height: 28px;
}
.lesson-controls {
  text-align: center;
  margin-top: 24px;
}
.lesson-controls p {
  font-size: 14px;
  margin: 0 0 10px;
}
.lesson-controls [role="group"] {
  display: inline-flex;
  gap: 8px;
}
.lesson-controls button,
.replay-button {
  min-height: 44px;
  padding: 10px 20px;
  border: 1px solid #90adcd;
  border-radius: 8px;
  background: #fff;
  color: #174c85;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.lesson-controls button[aria-pressed="true"] {
  color: #fff;
  background: #095fbd;
  border-color: #095fbd;
}
.lesson-controls button {
  width: auto;
  flex: 0 0 auto;
  white-space: nowrap;
  min-width: 105px;
  box-shadow: none;
}
.replay-button {
  width: auto;
  box-shadow: none;
}
.lesson-figure .figure-note {
  margin: 0;
}
.replay-button {
  display: block;
  margin: 20px auto 0;
}
.learn-site .learn-menu:hover:not(:disabled),
.learn-site .lesson-controls button:hover:not(:disabled),
.learn-site .replay-button:hover:not(:disabled) {
  background: #eaf3ff;
  color: #174c85;
  box-shadow: none;
}
.learn-site .learn-menu:active:not(:disabled),
.learn-site .lesson-controls button:active:not(:disabled),
.learn-site .replay-button:active:not(:disabled) {
  background: #dcecff;
  color: #174c85;
}
.learn-site .lesson-controls button[aria-pressed="true"]:hover:not(:disabled) {
  background: #084d98;
  color: #fff;
}
.learn-site .lesson-controls button[aria-pressed="true"]:active:not(:disabled) {
  background: #063e7c;
  color: #fff;
}
.replay-button:active,
.lesson-controls button:active,
.learn-button:active {
  transform: scale(0.98);
}
.learn-steps {
  padding: 0;
  margin: 25px 0;
  list-style: none;
  counter-reset: learn-step;
}
.learn-steps > li {
  position: relative;
  padding: 24px 0 24px 55px;
  border-top: 1px solid var(--line);
  counter-increment: learn-step;
}
.learn-steps > li::before {
  content: counter(learn-step);
  display: grid;
  place-items: center;
  position: absolute;
  left: 0;
  top: 24px;
  width: 34px;
  height: 34px;
  background: #e9f2ff;
  color: #1465bb;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 750;
}
.learn-steps > li p:last-child {
  margin-bottom: 0;
}
.learn-steps > li > a {
  font-size: 15px;
}
.plain-checklist {
  padding-left: 25px;
  margin: 22px 0;
}
.plain-checklist li {
  padding-left: 7px;
  margin: 12px 0;
}
.spec-phrase {
  color: #165291;
  font-weight: 700;
  font-size: 19px;
  line-height: 1.8;
  overflow-wrap: anywhere;
}
.display-terms {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  border-block: 1px solid var(--line);
  padding: 24px 0;
  margin: 25px 0;
}
.display-terms strong {
  display: block;
  color: #116bc6;
  font-size: 32px;
  line-height: 1.4;
  letter-spacing: -0.04em;
}
.display-terms span {
  display: block;
  font-weight: 650;
  font-size: 15px;
  margin: 6px 0 14px;
}
.display-terms p {
  font-size: 15px;
  margin: 0;
}
.purpose-lines > div {
  display: flex;
  align-items: start;
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.purpose-lines .cap-icon {
  flex-shrink: 0;
}
.purpose-lines p {
  margin: 0;
}
.cable-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.cable-comparison > div {
  padding: 22px;
  background: #fff;
  border: 1px solid #d7e3ef;
  border-radius: 12px;
}
.cable-comparison h3 {
  text-align: center;
  margin: 28px 0 20px;
}
.cable-comparison dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  font-size: 14px;
}
.cable-comparison dt {
  color: #5a6e82;
}
.cable-comparison dd {
  margin: 0;
  color: #1c4d7c;
  font-weight: 700;
}
.spec-reading {
  background: #f7f9fc;
  padding: 26px;
  border: 1px dashed #9bb3cc;
  border-radius: 12px;
  margin: 26px 0;
}
.spec-reading p:last-child {
  margin: 0;
  font-size: 15px;
}
.spec-reading mark {
  background: #dceeff;
  color: #154d83;
  border-radius: 3px;
  padding: 3px 4px;
}
.spec-sheet {
  border: 1px solid #cbd9e7;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 12px 30px #14375908;
}
.spec-sheet__bar {
  background: #edf3f9;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
}
.spec-sheet__bar > span:first-child {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #95afc6;
  box-shadow: 12px 0 #b2c4d5;
  margin-right: 16px;
}
.spec-sheet__bar > span:last-child {
  margin-left: auto;
  color: #4c6680;
}
.spec-sheet__body {
  padding: 28px;
}
.spec-sheet .spec-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 24px;
}
.spec-tags span {
  padding: 5px 9px;
  background: #edf4fc;
  border-radius: 5px;
  color: #16558e;
  font-size: 14px;
  font-weight: 650;
}
.spec-annotations > div {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  border-top: 1px solid var(--line);
  gap: 16px;
  padding: 19px 0;
}
.spec-annotations b {
  font-size: 14px;
  color: #1569b9;
  padding-top: 3px;
}
.spec-annotations p {
  margin: 0;
  font-size: 15px;
}
.spec-annotations strong {
  display: block;
}
.spec-sheet figcaption {
  padding: 0 28px 24px;
}
.direction-lines {
  margin: 25px 0;
}
.direction-lines p {
  border-left: 2px solid #80aedb;
  padding: 8px 0 8px 20px;
}
.direction-lines span {
  display: block;
  font-size: 15px;
  margin-top: 6px;
}
.research-note {
  display: grid;
  grid-template-columns: 135px minmax(0, 1fr);
  border-top: 1px solid var(--line);
  font-size: 15px;
}
.research-note dt,
.research-note dd {
  margin: 0;
  padding: 14px 8px;
  border-bottom: 1px solid var(--line);
}
.research-note dt {
  font-weight: 650;
}
.name-map {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  align-items: center;
  gap: 26px;
  padding: 28px;
  background: #f3f8ff;
  border: 1px solid #d9e7f3;
  border-radius: 16px;
}
.name-map__shape {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
}
.name-map__shape .usb-port {
  transform: scale(0.65);
  margin: -6px -28px;
}
.name-map__shape strong {
  font-size: 24px;
}
.name-map__shape > span:last-child {
  font-size: 14px;
}
.name-map__branches {
  border-left: 2px solid #93b7dc;
  padding-left: 24px;
}
.name-map__branches > div {
  background: #fff;
  border: 1px solid #d0e0ef;
  padding: 16px;
  border-radius: 8px;
}
.name-map__branches > div + div {
  margin-top: 18px;
}
.name-map__branches strong {
  font-size: 17px;
  color: #135591;
}
.name-map__branches p {
  font-size: 14px;
  margin: 5px 0 0;
}
.name-map figcaption {
  grid-column: 1 / -1;
  padding-top: 0;
}
.standards-questions dt {
  font-weight: 750;
  margin-top: 22px;
}
.standards-questions dd {
  margin: 6px 0 0;
  padding: 0 0 20px;
  border-bottom: 1px solid var(--line);
}
.dock-figure {
  display: grid;
  grid-template-columns: 100px 40px 130px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 32px;
  background: #f3f8fe;
  border: 1px solid #dae6f2;
  border-radius: 16px;
}
.dock-figure__pc,
.dock-figure__hub {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}
.dock-figure strong {
  font-size: 15px;
}
.dock-figure small {
  font-size: 12px;
  color: #486783;
}
.dock-figure__link {
  height: 3px;
  background: #91b7d8;
}
.dock-figure__ends {
  display: grid;
  gap: 12px;
  border-left: 2px solid #a7c4e0;
  padding-left: 20px;
}
.dock-figure__ends span {
  border: 1px solid #cbdced;
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
  padding: 8px 12px;
  text-align: center;
}
.dock-figure figcaption {
  grid-column: 1 / -1;
  padding-top: 0;
}
.screen-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  padding: 26px 0;
  border-block: 1px solid var(--line);
  margin-bottom: 24px;
}
.screen-comparison > div > div {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
}
.screen-comparison span {
  display: grid;
  place-items: center;
  font-size: 21px;
  font-weight: 700;
  color: #285f90;
  width: 88px;
  height: 58px;
  border: 4px solid #567288;
  border-radius: 4px;
  background: #ddecfc;
}
.screen-comparison > div:nth-child(2) span:last-child {
  background: #e5e7ff;
  color: #565699;
}
.screen-comparison h3,
.screen-comparison p {
  text-align: center;
}
.screen-comparison p {
  font-size: 14px;
  margin: 0;
}
.learn-tool {
  padding: 32px;
  background: #edf5ff;
  border: 1px solid #d5e5f7;
  border-radius: 16px;
  margin: 68px 0 42px;
}
.learn-tool h2 {
  font-size: 25px;
  margin-bottom: 14px;
}
.learn-tool p {
  font-size: 15px;
}
.learn-button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 14px 22px;
  min-height: 50px;
  background: #0863c5;
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 750;
  border-radius: 8px;
  transition:
    background 0.18s,
    transform 0.08s;
}
.learn-button:hover {
  background: #084d98;
  color: #fff;
}
.learn-next h2 {
  font-size: 18px;
}
.learn-next > div {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.learn-next > div a {
  padding: 18px 0;
  border-block: 1px solid var(--line);
  text-decoration: none;
}
.learn-next small {
  display: block;
  color: #526b83;
  font-size: 12px;
  margin-bottom: 8px;
}
.learn-next strong {
  display: block;
  font-size: 15px;
}
.learn-all {
  display: inline-block;
  margin-top: 20px;
  padding-block: 10px;
  font-size: 14px;
}
.learn-prose .learn-editorial-note {
  font-size: 12px;
  color: #5b7085;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  margin-top: 30px;
}
.learn-hub .guide-overview-hero__copy h1 {
  letter-spacing: -0.025em;
}
.learn-hub .guide-overview-hero__copy > p:not(.eyebrow) {
  color: #51647a;
}
.learn-hub .guide-overview-hero__copy .eyebrow {
  color: #095db6;
}
.learn-hub .hub-start {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  margin: 28px 0 18px;
  padding: 24px 30px;
  border: 1px solid #cbdff6;
  border-radius: 14px;
  background: #f0f6ff;
}
.hub-start__label {
  margin: 0 0 5px;
  font-size: 12px;
  font-weight: 750;
  color: #0b5cae;
}
.hub-start h2 {
  font-size: 23px;
  line-height: 1.65;
  letter-spacing: -0.025em;
  margin: 0;
}
.hub-start p:last-child {
  font-size: 14px;
  margin: 7px 0 0;
  color: #51647a;
}
.hub-start .learn-button {
  flex-shrink: 0;
}
.hub-problems {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 34px;
}
.hub-problems strong {
  font-size: 13px;
  margin-right: 10px;
}
.hub-problems a {
  font-size: 13px;
  padding: 10px 13px;
  min-height: 44px;
  border: 1px solid #cfdae6;
  border-radius: 7px;
  text-decoration: none;
}
.hub-problems a:hover {
  background: #edf5ff;
}
.learn-hub .guide-collection {
  margin-top: 40px;
}
.learn-hub .guide-collection + .guide-collection {
  margin-top: 38px;
}
.learn-hub .guide-collection h2 {
  font-size: 23px;
  margin-bottom: 8px;
}
.hub-group-note {
  color: #52677c;
  margin: 0 0 20px;
  font-size: 14px;
}
.learn-hub .guide-collection .guide-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.learn-hub .guide-collection .guide-card {
  min-height: 315px;
  padding: 22px;
  position: relative;
  transition:
    transform 0.18s,
    box-shadow 0.18s;
}
.learn-hub .guide-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px #24476d0d;
}
.learn-hub .guide-collection .guide-card h3 {
  font-size: 18px;
  line-height: 1.65;
}
.learn-hub .guide-collection .guide-card p {
  font-size: 14px;
  color: #52677c;
}
.learn-hub .guide-collection .guide-card__visual {
  margin-top: 18px;
}
.learn-hub .guide-collection .guide-card__visual img {
  height: auto;
  aspect-ratio: 2120 / 742;
  width: 100%;
  object-fit: contain;
}
.learn-hub .guide-collection .guide-card__link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding-top: 8px;
  color: #095db6;
}
.learn-hub .guide-collection .guide-card__number {
  flex: 0 0 32px;
  background: #e8f2ff;
  color: #1266b6;
}
.learn-site.learn-hub .guide-collection .guide-card__number {
  color: #1266b6;
  background: #e8f2ff;
}
.learn-hub .guide-card__number svg {
  width: 19px;
  height: 19px;
}
.learn-hub .guide-tools {
  margin-top: 42px;
}
.learn-hub .guide-tools__grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.learn-hub .guide-tool-card small,
.learn-hub .guide-tools > p {
  color: #52677c;
}
.learn-hub .hub-results {
  margin-top: 24px;
  border-block: 1px solid var(--line);
}
.hub-results summary {
  cursor: pointer;
  padding: 18px 2px;
  font-size: 15px;
  font-weight: 700;
}
.hub-results p {
  font-size: 14px;
  color: #435d76;
  line-height: 1.9;
  max-width: 900px;
}
@media (max-width: 1100px) {
  .learn-hero {
    gap: 28px;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  }
  .learn-layout {
    grid-template-columns: 205px minmax(0, 1fr);
    gap: 40px;
  }
  .learn-hub .guide-tools__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .hero-power {
    gap: 16px;
  }
  .hero-power strong {
    font-size: 60px;
  }
  .hero-capabilities {
    gap: 6px;
  }
  .hero-capabilities > span {
    padding: 6px 10px;
  }
}
@media (max-width: 900px) {
  .learn-site .site-header__inner {
    position: relative;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    min-height: 70px;
    padding: 10px 0;
    gap: 10px;
    flex-wrap: wrap;
  }
  .learn-site .brand-name {
    font-size: 14px;
    white-space: normal;
  }
  .learn-site .brand-mark {
    width: 30px;
    height: 30px;
    flex-basis: 30px;
  }
  .learn-site .site-nav {
    display: none;
  }
  .learn-site .site-nav[data-open] {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    width: 100%;
    flex: none;
    gap: 4px;
    padding-top: 10px;
  }
  .learn-site .site-nav a {
    justify-content: center;
    font-size: 14px;
    padding: 10px;
  }
  .learn-menu:not([hidden]) {
    display: flex;
    gap: 10px;
    align-items: center;
  }
  .learn-no-script-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 5px 14px;
    padding: 10px 20px;
    border-bottom: 1px solid var(--line);
  }
  .learn-no-script-nav a {
    padding: 8px 5px;
    min-height: 44px;
    font-size: 14px;
  }
  .learn-shell {
    width: min(calc(100% - 48px), 760px);
  }
  .learn-hero {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .learn-hero__visual {
    min-height: 230px;
    padding: 28px;
  }
  .learn-hero__visual > p {
    margin-top: 12px;
  }
  .learn-layout {
    display: block;
    padding-top: 26px;
  }
  .learn-toc {
    position: static;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 36px;
  }
  .learn-toc nav {
    grid-template-columns: 1fr 1fr;
  }
  .back-to-basics {
    border: 0;
    padding: 10px 9px;
    margin-top: 10px;
  }
  .learn-hub .guide-collection .guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .learn-hub .guide-collection .guide-card:last-child {
    grid-column: 1 / -1;
    min-height: 230px;
  }
  .learn-hub .guide-collection .guide-card:last-child img {
    max-height: 120px;
  }
}
@media (min-width: 901px) {
  .learn-menu {
    display: none !important;
  }
}
@media (max-width: 600px) {
  .learn-site .site-header__inner {
    width: calc(100% - 32px);
  }
  .learn-site .brand-lockup {
    gap: 7px;
    max-width: calc(100% - 97px);
  }
  .learn-site .brand-name {
    font-size: 12px;
    line-height: 1.4;
  }
  .learn-site .brand-mark {
    width: 27px;
    height: 27px;
    flex-basis: 27px;
  }
  .learn-site .learn-menu {
    font-size: 12px;
    padding: 5px 9px;
    gap: 5px;
  }
  .learn-shell {
    width: calc(100% - 40px);
  }
  .learn-breadcrumb {
    margin-top: 14px;
    font-size: 12px;
    gap: 7px;
  }
  .learn-hero {
    padding: 23px 0 28px;
  }
  .learn-hero h1 {
    font-size: 29px;
    line-height: 1.6;
    letter-spacing: -0.035em;
  }
  .learn-eyebrow {
    font-size: 12px;
    margin-bottom: 12px;
  }
  .learn-short {
    font-size: 14px;
    line-height: 1.8;
    margin: 14px 0 20px;
  }
  .learn-answer {
    padding: 15px 17px;
  }
  .learn-answer p {
    font-size: 16px;
    line-height: 1.9;
  }
  .learn-hero__visual {
    min-height: 218px;
    padding: 25px 12px;
    border-radius: 18px;
  }
  .learn-hero__visual > p {
    font-size: 13px;
  }
  .hero-port {
    gap: 15px;
  }
  .hero-port .usb-port {
    transform: scale(0.82);
    margin: -7px;
  }
  .hero-port > strong {
    font-size: 18px;
  }
  .hero-capabilities {
    margin-top: 16px;
  }
  .hero-capabilities > span {
    font-size: 12px;
  }
  .hero-power strong {
    font-size: 64px;
  }
  .hero-power .mini-device--charger {
    transform: scale(1.3);
  }
  .hero-screen {
    width: 230px;
    height: 130px;
  }
  .hero-cables {
    gap: 55px;
    height: 105px;
  }
  .hero-cables .mini-device--cable {
    transform: rotate(-32deg) scale(1.2);
  }
  .hero-cables .mini-device--cable:nth-child(2) {
    transform: rotate(-32deg) scale(1.2) translateY(15px);
  }
  .hero-spec {
    width: 258px;
    padding: 15px 18px;
  }
  .hero-spec p {
    font-size: 12px;
  }
  .learn-toc nav {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .learn-toc nav a {
    min-height: 44px;
    font-size: 13px;
    padding: 8px;
  }
  .learn-toc > p {
    margin-bottom: 8px;
  }
  .learn-prose {
    font-size: 16px;
    line-height: 1.95;
  }
  .learn-prose h2 {
    font-size: 23px;
    line-height: 1.65;
    margin-bottom: 18px;
  }
  .learn-prose h3 {
    font-size: 17px;
  }
  .learn-section {
    margin-bottom: 44px;
  }
  .learn-example,
  .learn-takeaway {
    padding: 21px 20px;
  }
  .lesson-figure {
    padding: 22px 16px;
  }
  .connection-chain {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .connection-chain > div {
    flex-direction: row;
    justify-content: flex-start;
    text-align: left;
    padding: 12px 8px;
    min-height: 70px;
    gap: 12px;
    flex-wrap: wrap;
  }
  .connection-chain .mini-device {
    margin: 8px 22px 8px 4px;
    transform: scale(0.72);
    transform-origin: left center;
    width: 65px;
  }
  .connection-chain .mini-device--charger {
    width: 48px;
    margin-right: 39px;
  }
  .connection-chain .mini-device--cable {
    transform: rotate(-12deg) scale(0.75);
  }
  .connection-chain strong {
    margin: 0;
    font-size: 15px;
  }
  .connection-chain small {
    display: block;
    margin-left: auto;
    font-size: 12px;
  }
  .connection-chain > b {
    justify-self: start;
    margin-left: 36px;
    transform: rotate(90deg);
    height: 26px;
    line-height: 26px;
  }
  .power-ceiling {
    margin-top: 15px !important;
    padding: 18px 12px;
  }
  .power-ceiling > strong {
    font-size: 46px;
  }
  .power-ceiling > small {
    min-height: 50px;
    font-size: 13px;
  }
  .capabilities {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .capabilities > div {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 0 16px;
    padding: 20px 0 8px;
  }
  .capabilities .cap-icon {
    grid-row: 1 / 3;
  }
  .capabilities h3 {
    margin: 0 0 6px;
  }
  .capabilities p {
    margin: 0;
  }
  .learn-steps > li {
    padding-left: 46px;
  }
  .learn-steps > li::before {
    width: 30px;
    height: 30px;
  }
  .display-terms {
    gap: 22px;
    grid-template-columns: 1fr;
  }
  .display-terms > div + div {
    border-top: 1px solid var(--line);
    padding-top: 22px;
  }
  .display-terms strong {
    font-size: 30px;
  }
  .cable-comparison {
    gap: 12px;
  }
  .cable-comparison > div {
    padding: 18px 10px 10px;
  }
  .cable-comparison .mini-device {
    transform: rotate(-12deg) scale(0.75);
    margin-left: 0;
  }
  .cable-comparison h3 {
    font-size: 15px;
    margin: 14px 0;
  }
  .cable-comparison dl {
    grid-template-columns: 1fr;
    gap: 2px;
    margin: 0;
  }
  .cable-comparison dd {
    margin-bottom: 12px;
  }
  .spec-reading {
    padding: 20px;
  }
  .spec-phrase {
    font-size: 17px;
  }
  .purpose-lines > div {
    gap: 15px;
  }
  .spec-sheet__bar {
    padding: 12px;
    font-size: 11px;
  }
  .spec-sheet__body {
    padding: 20px;
  }
  .spec-tags span {
    font-size: 12px;
  }
  .spec-annotations > div {
    grid-template-columns: 1fr;
    gap: 5px;
  }
  .spec-sheet figcaption {
    padding: 0 20px 22px;
  }
  .research-note {
    grid-template-columns: 1fr;
  }
  .research-note dt {
    padding-bottom: 0;
    border: 0;
  }
  .research-note dd {
    padding-top: 4px;
  }
  .name-map {
    grid-template-columns: 1fr;
    padding: 24px 20px;
    gap: 24px;
  }
  .name-map__shape .usb-port {
    margin-bottom: -12px;
  }
  .name-map__branches {
    border-left: 0;
    border-top: 2px solid #93b7dc;
    padding-left: 0;
    padding-top: 22px;
  }
  .dock-figure {
    grid-template-columns: 85px 25px 1fr;
    gap: 10px;
    padding: 26px 20px;
  }
  .dock-figure__pc .mini-device {
    transform: scale(0.85);
  }
  .dock-figure__hub .mini-device {
    transform: scale(0.85);
  }
  .dock-figure__ends {
    grid-column: 1 / -1;
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    padding-left: 0;
    padding-top: 15px;
    border-left: 0;
    border-top: 2px solid #a7c4e0;
    justify-content: center;
  }
  .dock-figure__ends span {
    font-size: 12px;
    padding: 7px 9px;
  }
  .dock-figure figcaption {
    margin-top: 15px;
  }
  .screen-comparison {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .screen-comparison > div + div {
    border-top: 1px solid var(--line);
    padding-top: 24px;
  }
  .learn-tool {
    padding: 25px 20px;
    margin-top: 48px;
  }
  .learn-tool h2 {
    font-size: 22px;
  }
  .learn-tool p {
    font-size: 14px;
  }
  .learn-button {
    font-size: 14px;
    gap: 12px;
    padding: 13px 16px;
  }
  .learn-next > div {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .learn-next > div a + a {
    border-top: 0;
  }
  .learn-next h2 {
    font-size: 18px;
  }
  .learn-hub main.article-main {
    width: calc(100% - 36px);
  }
  .learn-hub .guide-overview-hero__copy h1 {
    font-size: 29px;
    line-height: 1.55;
  }
  .learn-hub .guide-overview-hero__copy > p:not(.eyebrow) {
    font-size: 15px;
    line-height: 1.9;
  }
  .learn-hub .hub-start {
    flex-direction: column;
    align-items: flex-start;
    padding: 22px;
    gap: 18px;
  }
  .hub-start h2 {
    font-size: 21px;
  }
  .hub-start p:last-child {
    font-size: 13px;
  }
  .hub-problems {
    gap: 7px;
  }
  .hub-problems strong {
    flex-basis: 100%;
    margin-top: 5px;
  }
  .hub-problems a {
    font-size: 12px;
    padding: 10px 11px;
  }
  .learn-hub .guide-collection h2 {
    font-size: 22px;
  }
  .learn-hub .guide-collection .guide-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .learn-hub .guide-collection .guide-card {
    min-height: 0;
    padding: 22px;
  }
  .learn-hub .guide-collection .guide-card:last-child {
    min-height: 0;
  }
  .learn-hub .guide-collection .guide-card h3 {
    font-size: 18px;
  }
  .learn-hub .guide-collection .guide-card p {
    font-size: 14px;
  }
  .learn-hub .guide-collection .guide-card__visual img {
    max-height: 120px;
  }
  .learn-hub .guide-tools__grid {
    grid-template-columns: 1fr;
  }
  .learn-site .site-footer__inner {
    width: calc(100% - 40px);
  }
  .learn-site .site-footer__inner > p {
    font-size: 12px;
  }
}
@media (max-width: 350px) {
  .learn-shell {
    width: calc(100% - 32px);
  }
  .learn-hero h1 {
    font-size: 26px;
  }
  .connection-chain > div {
    gap: 5px;
  }
  .connection-chain small {
    flex-basis: 100%;
    margin-left: 100px;
    margin-top: -10px;
  }
  .hero-capabilities > span {
    padding: 6px 8px;
  }
  .hero-art--video .hero-capabilities {
    gap: 4px;
  }
  .hero-art--video .hero-capabilities span {
    font-size: 11px;
  }
  .hero-spec {
    width: 240px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .learn-site *,
  .learn-site *::before,
  .learn-site *::after {
    animation: none !important;
    transition: none !important;
  }
  .learn-site .guide-card:hover {
    transform: none;
  }
}
@media print {
  .learn-site .site-header,
  .learn-site .site-footer,
  .learn-toc,
  .lesson-controls,
  .replay-button,
  .learn-next {
    display: none !important;
  }
  .learn-shell {
    width: 100%;
  }
  .learn-layout {
    display: block;
  }
  .learn-hero {
    grid-template-columns: 1fr;
  }
  .learn-hero__visual {
    display: none;
  }
  .learn-section {
    break-inside: avoid;
  }
}