/* Guias visuais: texto real, diagramas leves e leitura responsiva. */
.visually-hidden {position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.breadcrumbs {display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:11px;color:var(--c-muted);padding-block:24px}
.breadcrumbs a {color:var(--c-muted);min-height:28px;display:inline-flex;align-items:center}
.academy-intro {display:grid;grid-template-columns:1.4fr 1fr;gap:38px;align-items:center;padding:26px 0 40px}
.academy-intro h1 {font-size:clamp(2rem,3.6vw,3.1rem);line-height:1.18;font-weight:650;margin:0 0 23px}
.academy-intro h1 em {font-style:normal;color:var(--c-link)}
.academy-intro p {font-size:15px;color:var(--c-muted);max-width:540px}
.academy-badges {display:flex;gap:20px;flex-wrap:wrap;font-size:11px;color:var(--c-muted);margin-top:25px}
.academy-badges span {display:flex;align-items:center;gap:6px}
.academy-badges .cmo-icon {width:16px;height:16px;color:var(--c-link)}
.academy-intro-art {padding:18px;border:1px solid var(--c-border);border-radius:24px;background:var(--c-surface);transform:rotate(-2deg)}
.academy-intro-art .concept-art {height:245px;border-radius:14px}
.intro-art-caption {display:block;text-align:center;font-size:9px;font-weight:600;letter-spacing:2px;padding-top:16px;color:var(--c-muted)}
.academy-start {display:flex;align-items:center;gap:20px;padding:24px 28px;background:var(--c-primary-soft);border:1px solid var(--c-border);border-radius:16px;margin-bottom:55px}
.academy-start>div {flex:1}
.academy-start strong {font-size:15px;font-weight:650;color:var(--c-heading)}
.academy-start p {font-size:12px;color:var(--c-muted);margin:3px 0 0}
.academy-start>.icon-tile {background:var(--c-surface)}
.academy-start .btn {font-size:12px;flex-shrink:0}
.academy-catalog-heading {display:flex;justify-content:space-between;gap:25px;align-items:center;margin-bottom:25px}
.academy-catalog {padding:0}
.academy-catalog-heading h2 {font-size:25px;font-weight:650;margin:0}
.academy-search {display:flex;align-items:center;gap:10px;padding:6px 6px 6px 14px;border:1px solid var(--c-border);border-radius:10px;background:var(--c-surface);min-width:0}
.academy-search>.cmo-icon {width:17px;height:17px;color:var(--c-muted)}
.academy-search input {background:transparent;border:0;border-radius:4px;width:210px;min-width:0;font-size:13px;min-height:36px;outline-offset:0}
.academy-search button {background:var(--c-bg-soft);border:1px solid var(--c-border);border-radius:7px;color:var(--c-heading);font-size:11px;min-height:36px;padding:5px 12px}
.academy-filters {display:flex;flex-wrap:wrap;gap:8px}
.academy-filters>a {font-size:12px;padding:9px 18px;border:1px solid var(--c-border);border-radius:30px;background:var(--c-surface);color:var(--c-muted);text-decoration:none;min-height:42px}
.academy-filters>a[aria-current],.academy-filters>a:hover {background:var(--c-primary);color:var(--c-bg);border-color:var(--c-primary)}
.academy-results {display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin:22px 0 18px;font-size:11px;color:var(--c-muted)}
.academy-results p {margin:0}
.lesson-grid {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.lesson-card {background:var(--c-surface);border:1px solid var(--c-border);border-radius:17px;overflow:hidden;display:flex;flex-direction:column;min-width:0;position:relative;transition:border-color .2s,transform .2s}
.lesson-card:hover {border-color:var(--tone);transform:translateY(-3px)}
.lesson-card-body {padding:24px;flex:1;display:flex;flex-direction:column;align-items:start}
.lesson-meta {display:flex;justify-content:space-between;gap:8px;align-items:center;width:100%;font-size:10px;color:var(--c-muted);margin-bottom:16px}
.lesson-meta>span:first-child {background:var(--tone-bg);color:var(--tone);padding:4px 9px;border-radius:5px;font-weight:600}
.lesson-card h3 {font-size:21px;font-weight:600;line-height:1.3;margin:0 0 12px}
.lesson-card h3 a {color:var(--c-heading);text-decoration:none}
.lesson-card h3 a::after {content:'';position:absolute;inset:0}
.lesson-card h3 a:focus-visible::after {outline:3px solid var(--tone);outline-offset:-4px;border-radius:17px}
.lesson-card-body>p {font-size:13px;line-height:1.7;color:var(--c-muted);margin:0 0 20px}
.lesson-link {font-size:12px;color:var(--tone);font-weight:650;display:flex;justify-content:space-between;align-items:center;width:100%;gap:10px;margin-top:auto;min-height:30px;position:relative}
.lesson-link .cmo-icon {width:18px;height:18px}
.lesson-card.is-reviewed .lesson-meta::after {content:'✓';color:var(--c-link);font-size:14px}
.concept-art {height:195px;position:relative;display:flex;align-items:center;justify-content:center;background:var(--tone-bg);color:var(--tone);overflow:hidden;isolation:isolate}
.art-grid-lines {position:absolute;inset:0;background-image:linear-gradient(currentColor 1px,transparent 1px),linear-gradient(90deg,currentColor 1px,transparent 1px);background-size:30px 30px;opacity:.055;mask-image:radial-gradient(ellipse,#000,transparent 80%)}
.art-note {position:absolute;left:10px;right:10px;bottom:17px;text-align:center;letter-spacing:2px;font-size:8px;opacity:.9;font-weight:600}
.block-chain {display:flex;align-items:center;justify-content:center;margin-bottom:15px;transform:rotate(-10deg)}
.block-chain span {display:grid;place-items:center;width:65px;height:65px;background:var(--c-surface);border:1px solid currentColor;border-radius:15px;box-shadow:5px 7px 0 color-mix(in srgb,currentColor 18%,transparent)}
.block-chain span:nth-of-type(2) {transform:translateY(-15px)}
.block-chain .cmo-icon {width:31px;height:31px}
.block-chain i {width:20px;border-top:2px dashed currentColor;opacity:.5}
.eth-symbol {position:relative;width:85px;height:133px;margin-top:-17px;z-index:1;filter:drop-shadow(0 10px 10px #7c53c644)}
.eth-symbol span {display:block;height:87px;clip-path:polygon(50% 0,100% 75%,50% 100%,0 75%);background:linear-gradient(90deg,#b39af5 50%,#684aa0 50%)}
.eth-symbol i {display:block;height:45px;margin-top:5px;clip-path:polygon(0 0,50% 45%,100% 0,50% 100%);background:linear-gradient(90deg,#9e86e0 50%,#644298 50%)}
.orbital-ring {position:absolute;width:220px;height:75px;border:1px solid currentColor;border-radius:50%;transform:rotate(-20deg);opacity:.25}
.concept-medallion {display:grid;place-items:center;width:100px;height:100px;background:var(--c-surface);border:1px solid currentColor;border-radius:27px;transform:rotate(-8deg);box-shadow:8px 9px 0 color-mix(in srgb,currentColor 16%,transparent);margin-top:-14px;z-index:1}
.concept-medallion .cmo-icon {width:55px;height:55px}
.cycle-chart {width:80%;height:120px;margin-top:-10px}
.swap-symbols {display:flex;align-items:center;gap:22px;margin-top:-14px}
.swap-symbols>span {width:70px;height:70px;display:grid;place-items:center;font-size:44px;font-weight:600;border:2px solid currentColor;border-radius:50%;background:var(--c-surface);box-shadow:5px 7px 0 color-mix(in srgb,currentColor 16%,transparent);transform:rotate(-12deg)}
.swap-symbols>span:last-child {transform:rotate(12deg);color:var(--ui-violet)}
.swap-symbols .cmo-icon {width:36px;height:36px}
.academy-empty {text-align:center;padding:55px 24px;border:1px dashed var(--c-border);border-radius:16px}
.academy-empty .icon-tile {margin-bottom:20px}
.academy-empty h3 {font-size:23px}
.academy-empty p {font-size:14px;color:var(--c-muted)}
.academy-glossary {display:grid;grid-template-columns:1fr 1fr;gap:65px;padding-block:70px;margin-top:55px;border-top:1px solid var(--c-border)}
.academy-glossary h2 {font-size:30px;font-weight:600}
.academy-glossary>div>p {font-size:14px;color:var(--c-muted);max-width:360px}
.glossary-list details {border-bottom:1px solid var(--c-border)}
.glossary-list summary {display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px 0;min-height:50px;cursor:pointer;list-style:none;font-weight:600;font-size:14px;color:var(--c-heading)}
.glossary-list summary::-webkit-details-marker {display:none}
.glossary-list summary span {font-size:20px;color:var(--c-link);font-weight:400}
.glossary-list details[open] summary span {transform:rotate(45deg)}
.glossary-list p {font-size:13px;line-height:1.8;color:var(--c-muted);padding-bottom:12px}
.academy-disclaimer {display:flex;gap:14px;align-items:start;padding:23px 26px;border:1px solid var(--c-border);border-radius:13px;background:var(--c-bg-soft);margin:20px 0 35px}
.academy-disclaimer>.cmo-icon {color:var(--c-link);margin-top:2px}
.academy-disclaimer p {font-size:12px;margin:0;color:var(--c-muted)}
.academy-disclaimer a {text-decoration:underline}
.concept-container {max-width:1140px}
.concept-hero {display:grid;grid-template-columns:1.3fr 1fr;gap:35px;align-items:center;padding:32px;border:1px solid var(--c-border);background:var(--c-surface);border-radius:22px}
.concept-hero h1 {font-size:clamp(2rem,3.7vw,3rem);font-weight:650;line-height:1.18;margin:0 0 20px}
.concept-hero>div>p {font-size:15px;line-height:1.8;color:var(--c-muted);margin-bottom:22px}
.concept-hero .concept-art {height:260px;border-radius:15px}
.concept-byline {display:flex;flex-wrap:wrap;gap:18px;color:var(--c-muted);font-size:10px}
.concept-byline span {display:flex;align-items:center;gap:5px}
.concept-byline .cmo-icon {width:14px;height:14px}
.concept-toc {display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:20px 0;border-bottom:1px solid var(--c-border);margin-bottom:45px}
.concept-toc>span {color:var(--c-muted);font-size:11px;margin-right:10px}
.concept-toc a {font-size:12px;padding:9px 13px;background:var(--c-bg-soft);border:1px solid var(--c-border);border-radius:8px;min-height:40px}
.concept-section {margin-block:45px;padding:0}
.concept-section h2,.concept-example h2,.concept-quiz h2 {font-size:28px;font-weight:600;margin:0 0 20px}
.concept-lead {font-size:17px;max-width:850px;line-height:1.9;color:var(--c-text);margin:0 0 30px}
.concept-facts {display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.concept-facts>div {padding:24px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:14px;min-width:0}
.fact-number {font-size:12px;font-weight:650;color:var(--tone);display:block;margin-bottom:20px}
.concept-facts h3 {font-size:17px;letter-spacing:-.02em;font-weight:650;margin:0 0 12px}
.concept-facts p {font-size:13px;color:var(--c-muted);line-height:1.75;margin:0}
.concept-steps {display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;padding:0;list-style:none}
.concept-steps li {padding:22px;background:var(--tone-bg);border-radius:14px;min-width:0}
.concept-steps li>span {display:grid;place-items:center;border:1px solid currentColor;color:var(--tone);width:30px;height:30px;border-radius:50%;font-size:12px;margin-bottom:18px}
.concept-steps p {font-size:13px;margin:0;color:var(--c-text)}
.concept-example {display:flex;align-items:start;gap:25px;background:var(--c-surface);border:1px solid var(--c-border);border-left:4px solid var(--tone);padding:30px;border-radius:15px}
.concept-example h2 {font-size:24px;margin-bottom:15px}
.concept-example p {font-size:15px;line-height:1.85;margin:0;color:var(--c-muted)}
.concept-summary {display:grid;grid-template-columns:1fr 1.6fr;gap:40px}
.concept-summary ul {list-style:none;padding:0;margin:0;display:grid;gap:16px}
.concept-summary li {display:flex;gap:12px;align-items:start;font-size:14px}
.concept-summary li .cmo-icon {color:var(--tone);width:19px;height:19px;margin-top:3px}
.concept-quiz {border:1px solid var(--c-border);border-radius:18px;padding:32px;background:var(--c-bg-soft);margin:45px 0 25px}
.concept-quiz fieldset {padding:0;border:0;margin:0 0 22px}
.concept-quiz legend {font-size:17px;color:var(--c-heading);font-weight:600;margin-bottom:18px}
.concept-quiz label {display:flex;align-items:start;gap:12px;padding:16px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:10px;margin:10px 0;cursor:pointer;font-size:14px}
.concept-quiz label:has(input:checked) {border-color:var(--tone);background:var(--tone-bg)}
.concept-quiz input {width:18px;height:18px;flex-shrink:0;margin:4px 0 0}
.quiz-feedback {margin:20px 0 0;padding:16px;border:1px solid var(--c-border);border-radius:10px;font-size:14px;color:var(--c-heading);background:var(--c-surface)}
.quiz-feedback.is-correct {border-color:var(--c-link)}
.concept-complete {display:flex;align-items:center;gap:20px;flex-wrap:wrap;padding:25px;border:1px solid var(--c-border);border-radius:14px}
.concept-complete>div {flex:1;min-width:200px}
.concept-complete strong {color:var(--c-heading);font-size:14px}
.concept-complete p {font-size:11px;color:var(--c-muted);margin:5px 0 0}
.concept-complete .btn {font-size:12px}
.concept-complete .btn[aria-pressed=true] {border-color:var(--c-link);color:var(--c-link);background:var(--c-primary-soft)}
.review-feedback:not(:empty) {flex-basis:100%}
.concept-sources {padding:30px 0;border-bottom:1px solid var(--c-border);margin-bottom:45px}
.concept-sources h2 {font-size:17px;font-weight:600}
.concept-sources p,.concept-sources li {font-size:12px;color:var(--c-muted)}
.concept-sources ul {padding-left:20px}
.concept-sources a {display:inline-block;padding:5px 0;text-decoration:underline}
.concept-related {margin-top:50px;padding:0}
@media(max-width:1000px) {
 .lesson-grid {grid-template-columns:repeat(2,minmax(0,1fr))}
 .home-lessons {grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
 .home-lessons .lesson-card-body {padding:18px}
 .home-lessons .lesson-card h3 {font-size:18px}
 .home-lessons .lesson-meta {font-size:9px}
 .home-lessons .block-chain span {width:48px;height:48px;border-radius:10px}
 .home-lessons .block-chain i {width:12px}
 .academy-intro {grid-template-columns:1.5fr 1fr;gap:20px}
 .academy-intro-art .block-chain span {width:50px;height:50px}
 .academy-catalog-heading {align-items:start;flex-direction:column;gap:18px}
 .academy-search {width:100%}
 .academy-search input {flex:1;width:100%}
 .concept-facts,.concept-steps {grid-template-columns:repeat(2,minmax(0,1fr))}
 .academy-start {flex-wrap:wrap}
}
@media(max-width:760px) {
 .breadcrumbs {padding-block:19px;font-size:10px}
 .academy-intro {grid-template-columns:1fr;padding:15px 0 30px}
 .academy-intro h1 {font-size:32px;line-height:1.22}
 .academy-intro h1 br {display:none}
 .academy-intro-art {display:none}
 .academy-badges {gap:10px 15px;margin-top:20px;font-size:10px}
 .academy-start {padding:22px;gap:14px;margin-bottom:35px}
 .academy-start>div {min-width:180px}
 .academy-start strong {font-size:14px}
 .academy-start>.icon-tile {display:none}
 .academy-start .btn {width:100%}
 .academy-catalog-heading h2 {font-size:23px}
 .academy-search input {font-size:16px}
 .academy-search button {min-height:40px}
 .academy-filters {gap:6px}
 .academy-filters>a {font-size:11px;padding:8px 13px}
 .lesson-grid,.home-lessons {grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
 .lesson-card-body,.home-lessons .lesson-card-body {padding:19px}
 .lesson-card h3,.home-lessons .lesson-card h3 {font-size:20px}
 .lesson-meta {font-size:9px;flex-wrap:wrap;justify-content:start}
 .home-lessons .lesson-meta {font-size:10px}
 .lesson-card-body>p {font-size:12px}
 .concept-art {height:180px}
 .block-chain span,.home-lessons .block-chain span {width:48px;height:48px}
 .block-chain i,.home-lessons .block-chain i {width:12px}
 .block-chain .cmo-icon {width:25px;height:25px}
 .art-note {font-size:7px;letter-spacing:1.5px}
 .academy-glossary {grid-template-columns:1fr;gap:18px;margin-top:35px;padding-block:40px}
 .academy-glossary h2 {font-size:27px}
 .academy-disclaimer {padding:20px;gap:12px}
 .concept-hero {grid-template-columns:1fr;padding:24px;gap:24px}
 .concept-hero h1 {font-size:32px;line-height:1.2}
 .concept-hero>div>p {font-size:14px}
 .concept-hero .concept-art {height:195px}
 .concept-toc {padding-block:18px;gap:7px;margin-bottom:30px}
 .concept-toc>span {width:100%;margin-bottom:4px}
 .concept-toc a {font-size:11px;padding:8px 11px}
 .concept-section {margin-block:32px}
 .concept-section h2,.concept-quiz h2 {font-size:25px}
 .concept-lead {font-size:16px;line-height:1.8}
 .concept-facts,.concept-steps {gap:12px}
 .concept-facts>div {padding:20px 17px}
 .concept-facts h3 {font-size:16px}
 .concept-facts p {font-size:12px}
 .fact-number {margin-bottom:13px}
 .concept-steps li {padding:19px}
 .concept-steps p {font-size:12px}
 .concept-example {padding:24px;gap:16px;flex-direction:column}
 .concept-example h2 {font-size:23px}
 .concept-example p {font-size:14px}
 .concept-summary {grid-template-columns:1fr;gap:6px}
 .concept-quiz {padding:24px;margin-block:30px 20px}
 .concept-quiz legend {font-size:16px}
 .concept-quiz label {font-size:13px;padding:14px}
 .concept-complete {padding:22px}
 .concept-complete .btn {width:100%}
}
@media(max-width:540px) {
 .lesson-grid,.home-lessons {grid-template-columns:1fr;gap:20px}
 .lesson-card-body,.home-lessons .lesson-card-body {padding:24px}
 .lesson-card h3,.home-lessons .lesson-card h3 {font-size:23px}
 .lesson-card-body>p {font-size:14px}
 .lesson-meta {justify-content:space-between;font-size:11px}
 .lesson-link {font-size:13px}
 .concept-art {height:205px}
 .block-chain span,.home-lessons .block-chain span {width:65px;height:65px}
 .block-chain i,.home-lessons .block-chain i {width:18px}
 .block-chain .cmo-icon {width:31px;height:31px}
 .art-note {font-size:8px}
}
@media(max-width:380px) {
 .academy-intro h1,.concept-hero h1 {font-size:28px}
 .concept-facts,.concept-steps {grid-template-columns:1fr}
 .concept-hero {padding:21px}
}
@media print {
 .platform-header,.site-footer,.mobile-dock,.cookie-banner,.concept-related,.concept-quiz,.concept-complete {display:none!important}
 body {background:white;color:#182133;padding:0}
 .concept-container {max-width:none}
 .concept-art {print-color-adjust:exact}
 .concept-section,.concept-example,.concept-facts>div {break-inside:avoid}
}