:root {
    --education-ink: #10233f;
    --education-muted: #53657d;
    --education-blue: #1746a2;
    --education-blue-dark: #10377f;
    --education-sky: #eaf2ff;
    --education-teal: #087f78;
    --education-teal-soft: #e7f8f5;
    --education-amber: #a65307;
    --education-amber-soft: #fff5df;
    --education-border: #d8e1ed;
    --education-surface: #ffffff;
    --education-shadow: 0 18px 45px rgba(16, 35, 63, 0.08);
}

.education-hero,
.education-page-header {
    border-bottom: 1px solid var(--education-border);
    background:
        radial-gradient(circle at 85% 10%, rgba(8, 127, 120, 0.13), transparent 28rem),
        linear-gradient(140deg, #f4f8ff 0%, #ffffff 58%, #eefaf7 100%);
}

.education-hero-content,
.education-page-header > .container {
    padding-top: clamp(3.5rem, 8vw, 6.5rem);
    padding-bottom: clamp(3.5rem, 8vw, 6.5rem);
}

.education-hero h1,
.education-page-header h1 {
    max-width: 880px;
    margin: 0.8rem 0 1rem;
    color: var(--education-ink);
    font-size: clamp(2.25rem, 6vw, 4.7rem);
    line-height: 1.02;
    letter-spacing: -0.045em;
}

.education-page-header h1 {
    font-size: clamp(2.2rem, 5vw, 4rem);
}

.education-hero p,
.education-page-header p {
    max-width: 780px;
    margin: 0;
    color: var(--education-muted);
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    line-height: 1.7;
}

.education-kicker,
.education-count {
    display: inline-flex;
    color: var(--education-blue);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    line-height: 1.4;
    text-transform: uppercase;
}

.education-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.education-button,
.education-primary-link,
.education-secondary-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--education-blue);
    font-weight: 800;
    text-decoration: underline;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.25em;
}

.education-button {
    justify-content: center;
    min-height: 48px;
    padding: 0.75rem 1.15rem;
    border: 2px solid var(--education-blue);
    border-radius: 0.75rem;
    background: var(--education-blue);
    color: #ffffff;
    text-decoration: none;
}

.education-button:hover,
.education-button:focus-visible {
    border-color: var(--education-blue-dark);
    background: var(--education-blue-dark);
}

.education-button-secondary {
    background: var(--education-surface);
    color: var(--education-blue);
}

.education-section {
    padding-top: clamp(2.75rem, 6vw, 5rem);
    padding-bottom: clamp(2.75rem, 6vw, 5rem);
}

.education-section + .education-section {
    padding-top: 0;
}

.education-section-heading {
    max-width: 760px;
    margin-bottom: 1.75rem;
}

.education-section-heading h2,
.education-section-block h2,
.education-errors h2,
.education-sources h2,
.education-next-recommendation h2 {
    margin: 0.45rem 0 0.75rem;
    color: var(--education-ink);
    font-size: clamp(1.65rem, 3.2vw, 2.35rem);
    line-height: 1.18;
    letter-spacing: -0.025em;
}

.education-section-heading p,
.education-section-block > p,
.education-next-recommendation p {
    color: var(--education-muted);
    line-height: 1.75;
}

.education-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
}

.education-card {
    min-width: 0;
    padding: 1.5rem;
    border: 1px solid var(--education-border);
    border-radius: 1.1rem;
    background: var(--education-surface);
    box-shadow: var(--education-shadow);
}

.education-card h3 {
    margin: 0.7rem 0 0.65rem;
    color: var(--education-ink);
    font-size: 1.3rem;
    line-height: 1.3;
}

.education-card p {
    color: var(--education-muted);
    line-height: 1.65;
}

.education-card .education-primary-link {
    margin-top: 0.5rem;
}

.education-secondary-link {
    margin-top: 0.8rem;
    color: var(--education-muted);
    font-size: 0.9rem;
}

.education-method {
    border-block: 1px solid var(--education-border);
    background: var(--education-ink);
    color: #ffffff;
}

.education-method .education-kicker,
.education-method h2 {
    color: #ffffff;
}

.education-method-steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: study-step;
}

.education-method-steps li {
    display: grid;
    gap: 0.45rem;
    padding: 1.35rem;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.06);
    counter-increment: study-step;
}

.education-method-steps li::before {
    content: "0" counter(study-step);
    color: #91d9d2;
    font-weight: 900;
}

.education-method-steps strong {
    font-size: 1.25rem;
}

.education-method-steps span {
    color: #d7e1ee;
    line-height: 1.6;
}

.education-introduction {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    gap: 2rem;
    align-items: start;
}

.education-prose h2,
.education-aside h2 {
    margin-top: 0;
    color: var(--education-ink);
}

.education-prose p,
.education-aside li {
    color: var(--education-muted);
    line-height: 1.75;
}

.education-aside {
    padding: 1.5rem;
    border-left: 0.3rem solid var(--education-teal);
    border-radius: 0.75rem;
    background: var(--education-teal-soft);
}

.education-aside ol {
    margin-bottom: 0;
    padding-left: 1.3rem;
}

.education-lesson-list,
.education-trail-steps {
    display: grid;
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.education-lesson-list .education-card {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1.25rem;
}

.education-lesson-number,
.education-trail-marker {
    display: grid;
    width: 3.25rem;
    height: 3.25rem;
    place-items: center;
    border-radius: 50%;
    background: var(--education-sky);
    color: var(--education-blue);
    font-weight: 900;
}

.education-lesson-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.5rem;
}

.education-lesson-meta span {
    padding: 0.5rem 0.7rem;
    border: 1px solid var(--education-border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.84);
    color: var(--education-ink);
    font-size: 0.85rem;
    font-weight: 700;
}

.education-lesson-trails {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.85rem;
    color: var(--education-muted);
    font-size: 0.92rem;
}

.education-lesson-trails a {
    color: var(--education-blue);
    font-weight: 800;
    text-underline-offset: 0.18em;
}

.education-lesson-layout {
    display: grid;
    grid-template-columns: 210px minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
    padding-top: clamp(2.5rem, 6vw, 5rem);
    padding-bottom: clamp(3rem, 7vw, 6rem);
}

.education-lesson-index {
    position: sticky;
    top: 96px;
    display: grid;
    gap: 0.25rem;
    padding: 1rem;
    border: 1px solid var(--education-border);
    border-radius: 0.9rem;
    background: var(--education-surface);
}

.education-lesson-index strong {
    margin-bottom: 0.35rem;
    color: var(--education-ink);
}

.education-lesson-index a {
    padding: 0.45rem 0.55rem;
    border-radius: 0.4rem;
    color: var(--education-muted);
    font-size: 0.9rem;
}

.education-lesson-index a:hover {
    background: var(--education-sky);
    color: var(--education-blue);
}

.education-lesson-content {
    min-width: 0;
    max-width: 850px;
}

.education-section-block,
.education-errors,
.education-sources {
    padding-bottom: clamp(2.75rem, 6vw, 4.5rem);
    scroll-margin-top: 110px;
}

.education-section-block h3 {
    color: var(--education-ink);
}

.education-section-block p,
.education-section-block li,
.education-errors li,
.education-sources li {
    line-height: 1.75;
}

.education-check-list {
    display: grid;
    gap: 0.8rem;
    margin: 1.25rem 0;
    padding: 0;
    list-style: none;
}

.education-check-list li {
    position: relative;
    padding-left: 2rem;
}

.education-check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    display: grid;
    width: 1.35rem;
    height: 1.35rem;
    place-items: center;
    border-radius: 50%;
    background: var(--education-teal-soft);
    color: var(--education-teal);
    font-weight: 900;
}

.education-prerequisite {
    padding: 0.9rem 1rem;
    border-radius: 0.7rem;
    background: var(--education-sky);
}

.education-prerequisite a {
    color: var(--education-blue);
    font-weight: 800;
    text-decoration: underline;
}

.education-definitions,
.education-variable-list,
.education-compact-definition,
.education-trail-summary {
    display: grid;
    gap: 0.75rem;
    margin: 1.5rem 0 0;
}

.education-definitions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.education-definitions > div,
.education-variable-list > div,
.education-compact-definition > div,
.education-trail-summary > div {
    min-width: 0;
    padding: 1rem;
    border: 1px solid var(--education-border);
    border-radius: 0.75rem;
    background: #f9fbfe;
}

.education-definitions dt,
.education-variable-list dt,
.education-compact-definition dt,
.education-trail-summary dt {
    color: var(--education-ink);
    font-weight: 900;
}

.education-definitions dd,
.education-variable-list dd,
.education-compact-definition dd,
.education-trail-summary dd {
    margin: 0.35rem 0 0;
    color: var(--education-muted);
    line-height: 1.55;
}

.education-formula-grid {
    display: grid;
    gap: 1rem;
    margin-bottom: 2rem;
}

.education-formula-card {
    min-width: 0;
    padding: 1.25rem;
    border: 1px solid #bfd1f4;
    border-radius: 0.9rem;
    background: var(--education-sky);
}

.education-formula {
    max-width: 100%;
    margin: 0 0 0.6rem;
    overflow-x: auto;
    color: var(--education-ink);
    font-family: "Cambria Math", Cambria, Georgia, serif;
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 800;
    line-height: 1.5;
    white-space: nowrap;
}

.education-variable-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.education-variable-list > div {
    background: rgba(255, 255, 255, 0.7);
}

.education-unit {
    display: block;
    margin-top: 0.25rem;
    color: var(--education-blue);
    font-size: 0.85rem;
    font-weight: 700;
}

.education-steps {
    display: grid;
    gap: 0.75rem;
    padding-left: 1.5rem;
}

.education-example {
    padding: clamp(1.2rem, 4vw, 2rem);
    border: 1px solid var(--education-border);
    border-radius: 1rem;
    background: var(--education-surface);
    box-shadow: var(--education-shadow);
}

.education-example header h3 {
    margin: 0.4rem 0 1rem;
    font-size: clamp(1.25rem, 3vw, 1.65rem);
}

.education-example-data {
    display: grid;
    gap: 0.75rem;
    margin: 1.25rem 0;
}

.education-example-data > div {
    display: grid;
    grid-template-columns: 8rem minmax(0, 1fr);
    gap: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--education-border);
}

.education-example-data dt {
    font-weight: 900;
}

.education-example-data dd {
    min-width: 0;
    margin: 0;
    overflow-wrap: anywhere;
}

.education-example-data ul {
    margin: 0;
    padding-left: 1.2rem;
}

.education-result,
.education-interpretation {
    padding: 1rem;
    border-radius: 0.7rem;
}

.education-result {
    background: var(--education-teal-soft);
    color: #065e59;
}

.education-interpretation {
    background: #f4f6f9;
}

.education-errors {
    margin-bottom: clamp(2.75rem, 6vw, 4.5rem);
    padding: clamp(1.25rem, 4vw, 2rem);
    border-left: 0.35rem solid var(--education-amber);
    border-radius: 0.9rem;
    background: var(--education-amber-soft);
}

.education-errors ul {
    display: grid;
    gap: 0.6rem;
    margin-bottom: 0;
}

.education-exercise {
    margin-top: 1rem;
    border: 1px solid var(--education-border);
    border-radius: 0.9rem;
    background: var(--education-surface);
    overflow: hidden;
}

.education-exercise summary {
    display: grid;
    gap: 0.45rem;
    padding: 1.15rem 1.25rem;
    cursor: pointer;
    list-style-position: inside;
}

.education-exercise summary span {
    color: var(--education-blue);
    font-size: 0.8rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.education-exercise[open] summary {
    border-bottom: 1px solid var(--education-border);
    background: var(--education-sky);
}

.education-exercise-answer {
    padding: 1.25rem;
}

.education-visual {
    margin: 0 0 clamp(2.75rem, 6vw, 4.5rem);
    padding: clamp(1rem, 3vw, 1.5rem);
    border: 1px solid var(--education-border);
    border-radius: 1rem;
    background: #f9fbfe;
}

.education-visual img {
    display: block;
    width: 100%;
    max-width: 800px;
    height: auto;
    margin-inline: auto;
    border-radius: 0.65rem;
}

.education-visual figcaption {
    display: grid;
    gap: 0.3rem;
    margin-top: 1rem;
    color: var(--education-muted);
    font-size: 0.92rem;
    line-height: 1.55;
}

.education-visual figcaption strong {
    color: var(--education-ink);
}

.education-visual-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin: 0;
    padding: 1rem;
    border-radius: 0.8rem;
    background: var(--education-surface);
    list-style: none;
}

.education-visual-items li {
    flex: 1 1 8rem;
    padding: 0.8rem;
    border: 2px solid var(--education-border);
    border-radius: 0.65rem;
    color: var(--education-ink);
    text-align: center;
}

.education-visual-items .is-highlighted {
    border-color: var(--education-teal);
    background: var(--education-teal-soft);
    font-weight: 900;
}

.education-relation {
    display: grid;
    grid-template-columns: auto auto minmax(0, 1fr);
    gap: 1rem;
    align-items: center;
    padding: 1.25rem;
    border-radius: 0.8rem;
    background: var(--education-sky);
    color: var(--education-ink);
    line-height: 1.6;
}

.periodic-table-scroll,
.periodic-list-scroll {
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    border: 1px solid var(--education-border);
    border-radius: 0.7rem;
    background: var(--education-surface);
}

.periodic-table {
    width: 1520px;
    border-spacing: 0.22rem;
    table-layout: fixed;
}

.periodic-table caption {
    padding: 0.8rem;
    color: var(--education-ink);
    font-weight: 800;
    text-align: left;
}

.periodic-table td,
.periodic-table .periodic-axis-heading,
.periodic-table .periodic-row-heading {
    width: 76px;
    height: 88px;
    padding: 0.28rem;
    border: 1px solid #cbd7e8;
    border-radius: 0.35rem;
    vertical-align: top;
}

.periodic-table .periodic-axis-heading,
.periodic-table .periodic-row-heading {
    border-color: transparent;
    background: #f2f6fb;
    color: var(--education-muted);
    font-size: 0.65rem;
    font-weight: 800;
    text-align: center;
}

.periodic-table .periodic-row-heading {
    overflow-wrap: anywhere;
    writing-mode: vertical-rl;
}

.periodic-table .periodic-gap {
    border-color: transparent;
    background: transparent;
}

.periodic-element span,
.periodic-element strong {
    display: block;
}

.periodic-number,
.periodic-weight {
    color: var(--education-muted);
    font-size: 0.64rem;
}

.periodic-element strong {
    margin: 0.15rem 0;
    color: var(--education-ink);
    font-size: 1.15rem;
}

.periodic-name {
    overflow: hidden;
    color: var(--education-muted);
    font-size: 0.58rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.periodic-element.is-highlighted,
.periodic-list-scroll tr.is-highlighted {
    border-color: var(--education-teal);
    background: var(--education-teal-soft);
}

.periodic-table-alternative {
    margin-top: 1rem;
}

.periodic-table-note {
    margin: 0.8rem 0 0;
    color: var(--education-muted);
    font-size: 0.84rem;
    line-height: 1.55;
}

.periodic-weight abbr,
.periodic-list-scroll abbr {
    text-decoration: none;
}

.periodic-table-alternative summary {
    cursor: pointer;
    color: var(--education-blue);
    font-weight: 800;
}

.periodic-list-scroll {
    max-height: 30rem;
    margin-top: 0.8rem;
}

.periodic-list-scroll table {
    width: 100%;
    min-width: 35rem;
    border-collapse: collapse;
}

.periodic-list-scroll th,
.periodic-list-scroll td {
    padding: 0.65rem;
    border-bottom: 1px solid var(--education-border);
    text-align: left;
}

.periodic-table-scroll:focus-visible,
.periodic-list-scroll:focus-visible {
    outline: 3px solid #ffffff;
    outline-offset: 2px;
    box-shadow: 0 0 0 6px var(--education-blue-dark);
}

.education-related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.education-calculator-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.education-lesson-navigation {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin-bottom: clamp(2.75rem, 6vw, 4.5rem);
}

.education-lesson-navigation a {
    display: grid;
    gap: 0.35rem;
    min-width: 0;
    padding: 1rem;
    border: 1px solid var(--education-border);
    border-radius: 0.8rem;
    background: var(--education-surface);
    color: var(--education-blue);
}

.education-lesson-navigation a:last-child {
    text-align: right;
}

.education-lesson-navigation span {
    color: var(--education-muted);
    font-size: 0.82rem;
}

.education-sources {
    padding-top: 1.75rem;
    border-top: 1px solid var(--education-border);
}

.education-sources ul {
    display: grid;
    gap: 0.75rem;
    padding-left: 1.25rem;
}

.education-sources a {
    color: var(--education-blue);
    font-weight: 800;
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

.education-sources span {
    color: var(--education-muted);
}

.education-trail-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 850px;
}

.education-trail-steps li {
    position: relative;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1rem;
    align-items: start;
}

.education-trail-steps li:not(:last-child)::before {
    content: "";
    position: absolute;
    top: 3.25rem;
    bottom: -1rem;
    left: 1.58rem;
    width: 2px;
    background: var(--education-border);
}

.education-trail-marker {
    position: relative;
    z-index: 1;
    border: 2px solid var(--education-surface);
}

.education-next-recommendation {
    margin-bottom: 2rem;
    padding: clamp(1.25rem, 4vw, 2rem);
    border-left: 0.35rem solid var(--education-teal);
    border-radius: 0.9rem;
    background: var(--education-teal-soft);
}

@media (max-width: 900px) {
    .education-card-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .education-method-steps {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .education-lesson-layout {
        grid-template-columns: 1fr;
    }

    .education-lesson-index {
        position: static;
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .education-lesson-index strong {
        grid-column: 1 / -1;
    }
}

@media (max-width: 680px) {
    .education-card-grid,
    .education-method-steps,
    .education-introduction,
    .education-definitions,
    .education-variable-list,
    .education-trail-summary {
        grid-template-columns: 1fr;
    }

    .education-lesson-index {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .education-lesson-list .education-card,
    .education-trail-steps li {
        grid-template-columns: 1fr;
    }

    .education-trail-steps li::before {
        display: none;
    }

    .education-example-data > div {
        grid-template-columns: 1fr;
    }

    .education-lesson-navigation {
        grid-template-columns: 1fr;
    }

    .education-lesson-navigation a:last-child {
        text-align: left;
    }

    .education-relation {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .education-button,
    .education-card,
    .education-primary-link {
        scroll-behavior: auto;
        transition: none;
    }
}

/* Polimento final da experiência educacional */

.education-hero,
.education-page-header {
    background: linear-gradient(135deg, #f5f8ff 0%, #ffffff 68%, #eef9f7 100%);
}

.education-hero-content,
.education-page-header > .container {
    padding-top: clamp(2.75rem, 6vw, 4.5rem);
    padding-bottom: clamp(2.75rem, 6vw, 4.5rem);
}

.education-hero h1,
.education-page-header h1 {
    margin-block: 0.65rem 0.85rem;
    font-size: clamp(2.2rem, 5vw, 4.15rem);
}

.education-page-header h1 {
    font-size: clamp(2.05rem, 4.5vw, 3.55rem);
}

.education-section {
    padding-top: clamp(2.5rem, 5vw, 4.25rem);
    padding-bottom: clamp(2.5rem, 5vw, 4.25rem);
}

.education-card {
    padding: 1.35rem;
    border-color: var(--border-color, var(--education-border));
    border-radius: var(--radius-md, 1rem);
    box-shadow: var(--shadow-sm, var(--education-shadow));
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.education-card:has(.education-primary-link:hover) {
    border-color: rgba(23, 70, 162, 0.28);
    box-shadow: 0 12px 30px rgba(16, 35, 63, 0.09);
}

.education-lesson-list .education-card {
    align-items: start;
}

.education-lesson-number,
.education-trail-marker {
    width: 3rem;
    height: 3rem;
    box-shadow: inset 0 0 0 1px rgba(23, 70, 162, 0.08);
}

.education-lesson-layout {
    gap: clamp(1.75rem, 4vw, 3.5rem);
    padding-top: clamp(2rem, 4vw, 3.5rem);
    padding-bottom: clamp(2.75rem, 6vw, 5rem);
}

.education-lesson-index {
    top: 86px;
    border-color: var(--border-color, var(--education-border));
    border-radius: var(--radius-md, 0.9rem);
    box-shadow: var(--shadow-sm, none);
}

.education-lesson-index a {
    min-height: 36px;
    display: flex;
    align-items: center;
}

.education-section-block,
.education-sources {
    padding-top: clamp(1.75rem, 4vw, 2.5rem);
    padding-bottom: clamp(2.25rem, 5vw, 3.5rem);
    border-top: 1px solid var(--education-border);
}

.education-section-block:first-child {
    padding-top: 0;
    border-top: 0;
}

.education-section-block h2,
.education-errors h2,
.education-sources h2 {
    margin-top: 0.35rem;
}

.education-formula-card {
    position: relative;
    padding: 1.25rem 1.35rem;
    overflow: hidden;
    border-color: #c7d6f2;
    box-shadow: inset 4px 0 0 var(--education-blue);
}

.education-example {
    border-top: 3px solid var(--education-blue);
    border-radius: var(--radius-md, 1rem);
    box-shadow: var(--shadow-sm, var(--education-shadow));
}

.education-result,
.education-interpretation {
    border: 1px solid rgba(8, 127, 120, 0.12);
}

.education-interpretation {
    border-color: var(--education-border);
}

.education-errors {
    border: 1px solid #f2d39b;
    border-left: 0.35rem solid var(--education-amber);
    box-shadow: 0 8px 22px rgba(166, 83, 7, 0.06);
}

.education-exercise {
    border-radius: var(--radius-md, 0.9rem);
    box-shadow: var(--shadow-sm, none);
}

.education-exercise summary {
    min-height: 62px;
    align-content: center;
}

.education-visual {
    border-color: var(--border-color, var(--education-border));
    border-radius: var(--radius-md, 1rem);
    background: #fbfcfe;
    box-shadow: var(--shadow-sm, none);
}

.education-visual figcaption {
    padding-top: 0.85rem;
    border-top: 1px solid var(--education-border);
}

.education-trail-steps {
    gap: 1.15rem;
}

.education-trail-steps li:not(:last-child)::before {
    top: 3rem;
    bottom: -1.15rem;
    left: 1.47rem;
    width: 3px;
    border-radius: 999px;
    background: #c8d8f2;
}

.education-trail-marker {
    border: 3px solid #ffffff;
    background: var(--education-blue);
    color: #ffffff;
    box-shadow: 0 0 0 1px #c8d8f2;
}

.education-trail-steps .education-card {
    padding: 1.25rem 1.4rem;
}

.education-primary-link,
.education-secondary-link {
    min-height: 38px;
    align-items: center;
}

@media (max-width: 680px) {
    .education-hero-content,
    .education-page-header > .container {
        padding-top: 2.25rem;
        padding-bottom: 2.25rem;
    }

    .education-hero h1,
    .education-page-header h1 {
        font-size: clamp(2rem, 10vw, 2.8rem);
    }

    .education-lesson-meta {
        margin-top: 1.1rem;
    }

    .education-lesson-index {
        gap: 0.15rem;
        padding: 0.85rem;
    }

    .education-lesson-index a {
        min-height: 40px;
        padding: 0.45rem;
    }

    .education-section-block,
    .education-sources {
        padding-top: 1.75rem;
        padding-bottom: 2.25rem;
    }

    .education-card,
    .education-example,
    .education-errors,
    .education-visual {
        padding: 1.1rem;
    }

    .education-trail-steps li {
        grid-template-columns: auto minmax(0, 1fr);
        gap: 0.75rem;
    }

    .education-trail-steps li::before {
        display: block;
    }
}

@media (max-width: 420px) {
    .education-trail-steps li {
        grid-template-columns: 1fr;
    }

    .education-trail-steps li::before {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .education-card {
        transition: none;
    }
}