:root {
    color-scheme: light;
    --blue: #2563eb;
    --ink: #172b4d;
    --muted: #596b83;
    --border: #e3eaf3;
}
* {
    box-sizing: border-box;
}
[hidden] {
    display: none !important;
}
html {
    scroll-padding-top: 24px;
}
body {
    margin: 0;
    color: var(--ink);
    background: #fff;
    font:
        16px/1.65 Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    -webkit-font-smoothing: antialiased;
}
a {
    color: inherit;
    text-decoration: none;
}
button,
input,
select {
    font: inherit;
}
button,
select {
    cursor: pointer;
}
button {
    color: inherit;
}
svg {
    flex-shrink: 0;
    vertical-align: middle;
}
h1,
h2,
h3,
p {
    margin: 0;
}
h1,
h2,
h3 {
    line-height: 1.3;
}
:focus-visible {
    outline: 3px solid #2563eb;
    outline-offset: 5px;
}
.container {
    width: min(1120px, calc(100% - 64px));
    margin-inline: auto;
}
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}
.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    z-index: 5;
    padding: 12px 20px;
    background: white;
}
.skip-link:focus {
    top: 12px;
}
.site-header {
    border-bottom: 1px solid var(--border);
    background: #fff;
}
.header-inner,
.brand,
.header-actions,
.locale-form {
    display: flex;
    align-items: center;
}
.header-inner {
    min-height: 88px;
    justify-content: space-between;
    gap: 24px;
}
.brand {
    gap: 22px;
}
.brand img {
    display: block;
    object-fit: contain;
}
.brand-divider {
    width: 1px;
    height: 25px;
    background: var(--border);
}
.help-brand {
    font-size: 14px;
    font-weight: 600;
    color: var(--muted);
}
.header-actions {
    gap: 24px;
    font-size: 14px;
}
.locale-form {
    gap: 8px;
}
.locale-form select {
    max-width: 135px;
    border: 0;
    padding: 8px 4px;
    background: transparent;
    color: var(--muted);
}
.locale-submit {
    padding: 6px 10px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
}
.app-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--blue);
}
.app-link svg {
    width: 18px;
}
.hero {
    background: radial-gradient(
        ellipse at 50% 0%,
        #e8f0ff 0%,
        #f3f7ff 48%,
        #f8faff 100%
    );
    border-bottom: 1px solid #edf1f7;
}
.hero-inner {
    text-align: center;
    padding-block: 65px 68px;
}
.eyebrow {
    display: block;
    font-size: 11px;
    font-weight: 750;
    letter-spacing: 0.13em;
    color: var(--blue);
}
h1 {
    margin-top: 14px;
    font-size: clamp(32px, 4vw, 46px);
    letter-spacing: -0.04em;
    font-weight: 750;
}
.hero-intro {
    max-width: 570px;
    margin: 17px auto 0;
    color: var(--muted);
    font-size: 16px;
}
.search-area {
    max-width: 690px;
    margin: 29px auto 0;
}
.search-box {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 9px 18px;
    background: white;
    border: 1px solid #d6e1f2;
    border-radius: 12px;
    box-shadow: 0 6px 22px #26497c08;
    text-align: left;
}
.search-box:focus-within {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px #2563eb12;
}
.search-box > svg {
    color: #7990ae;
    width: 22px;
}
.search-box input {
    width: 100%;
    min-width: 0;
    padding: 10px 0;
    border: 0;
    outline: none;
    background: transparent;
    color: var(--ink);
    font-size: 15px;
}
.search-box input::placeholder {
    color: #6b7c94;
}
.search-box input::-webkit-search-cancel-button {
    -webkit-appearance: none;
}
.search-box button {
    display: grid;
    place-items: center;
    padding: 5px;
    background: transparent;
    border: 0;
    border-radius: 5px;
    color: var(--muted);
}
.search-hint {
    margin-top: 9px;
    font-size: 12px;
    color: var(--muted);
}
.quick-links {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 9px;
    margin-top: 21px;
    font-size: 12px;
    color: var(--muted);
}
.quick-links > span {
    margin-right: 3px;
}
.quick-links a {
    padding: 4px 12px;
    border: 1px solid #dae4f2;
    border-radius: 20px;
    background: #ffffffa8;
    color: #405777;
}
.quick-links a:hover {
    border-color: var(--blue);
    color: var(--blue);
}
.content {
    padding-top: 36px;
}
.start-banner {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 29px 32px;
    border: 1px solid #dbe7ff;
    border-radius: 14px;
    background: #f5f8ff;
}
.start-icon {
    display: grid;
    place-items: center;
    flex-shrink: 0;
    width: 62px;
    height: 62px;
    color: var(--blue);
    background: #e7efff;
    border: 1px solid #d7e4ff;
    border-radius: 15px;
    transform: rotate(-5deg);
}
.start-icon svg {
    width: 30px;
    height: 30px;
}
.start-copy {
    flex: 1;
}
.start-copy h2 {
    font-size: 22px;
    margin-top: 5px;
    letter-spacing: -0.02em;
}
.start-copy p {
    max-width: 560px;
    margin-top: 7px;
    color: var(--muted);
    font-size: 14px;
}
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-shrink: 0;
    padding: 11px 17px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 650;
    transition: background 0.15s;
}
.button svg {
    width: 18px;
    height: 18px;
}
.button-primary {
    background: var(--blue);
    color: white;
    box-shadow: 0 2px 3px #2563eb20;
}
.button-primary:hover {
    background: #1d4ed8;
}
.button-secondary {
    background: white;
    border-color: #d5deec;
}
.button-secondary:hover {
    background: #f1f5fc;
}
.topics-with-sidebar {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: start;
    gap: 42px;
    padding-top: 46px;
}
.help-sidebar {
    position: sticky;
    top: 24px;
    min-width: 0;
}
.help-sidebar nav {
    padding: 20px 18px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #f8faff;
}
.help-sidebar .eyebrow {
    margin-bottom: 14px;
}
.help-sidebar ol {
    display: grid;
    gap: 2px;
    margin: 0;
    padding: 0;
    list-style: none;
}
.help-sidebar li a {
    display: block;
    padding: 8px 10px;
    border-radius: 7px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.45;
}
.help-sidebar li a:hover,
.help-sidebar li a:focus-visible {
    background: #e7efff;
    color: var(--blue);
}
.topics-section {
    min-width: 0;
}
.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 20px;
    margin-bottom: 24px;
}
.section-heading h2 {
    font-size: 24px;
    letter-spacing: -0.025em;
}
.section-heading p {
    margin-top: 6px;
    font-size: 14px;
    color: var(--muted);
}
.section-heading .search-status {
    font-size: 12px;
    text-align: right;
}
.topics-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
}
.topic-card {
    display: flex;
    flex-direction: column;
    min-height: 236px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
    padding: 24px 22px 20px;
    overflow: hidden;
    color: inherit;
    text-decoration: none;
    transition:
        border-color 0.15s,
        box-shadow 0.15s;
    scroll-margin-top: 24px;
}
.topic-card:hover,
.topic-card:target {
    border-color: #a6c1f4;
    box-shadow: 0 4px 16px #22396306;
}
.topic-card:focus-visible {
    outline-offset: -4px;
    border-radius: 12px;
}
.topic-icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: #eef3ff;
    color: #4773ce;
    margin-bottom: 18px;
}
.icon-students {
    background: #f0edff;
    color: #8063c6;
}
.icon-teachers {
    background: #eaf6f3;
    color: #2d8b78;
}
.icon-courses {
    background: #eaf2ff;
    color: #4277d3;
}
.icon-calendar {
    background: #fff3e7;
    color: #af722a;
}
.icon-applications {
    background: #eaf6fb;
    color: #337f9f;
}
.icon-payments {
    background: #edf7ee;
    color: #3c8551;
}
.icon-reports {
    background: #fceff3;
    color: #b95980;
}
.icon-new_features {
    background: #eaf8f5;
    color: #168a77;
}
.topic-card h3 {
    font-size: 16px;
    font-weight: 650;
    letter-spacing: -0.015em;
}
.topic-card > p {
    margin-top: 9px;
    margin-bottom: 20px;
    font-size: 13px;
    line-height: 1.65;
    color: var(--muted);
}
.topic-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-top: auto;
    font-size: 12px;
    font-weight: 600;
    color: #44659a;
}
.topic-action svg {
    width: 16px;
    height: 16px;
    transition: transform 0.15s;
}
.empty-state {
    padding: 40px 20px;
    text-align: center;
    border: 1px dashed #c7d5e8;
    border-radius: 12px;
    background: #f8faff;
}
.empty-state > svg {
    color: var(--blue);
    margin-bottom: 12px;
}
.empty-state h3 {
    font-size: 20px;
}
.empty-state p {
    margin: 10px 0 20px;
    color: var(--muted);
    font-size: 14px;
}
.getting-started {
    padding-top: 48px;
    scroll-margin-top: 24px;
}
.steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 34px;
    margin: 0;
    padding: 0;
    list-style: none;
}
.steps li {
    border-top: 1px solid var(--border);
    padding-top: 22px;
}
.step-number {
    display: grid;
    place-items: center;
    width: 29px;
    height: 29px;
    margin-bottom: 14px;
    border-radius: 50%;
    background: #edf3ff;
    color: var(--blue);
    font-size: 12px;
    font-weight: 700;
}
.steps h3 {
    font-size: 16px;
}
.steps h3 a {
    display: inline-flex;
    align-items: center;
    gap: 9px;
}
.steps h3 a:hover {
    color: var(--blue);
}
.steps h3 svg {
    width: 16px;
    height: 16px;
    color: #7d91af;
}
.steps p {
    margin-top: 10px;
    color: var(--muted);
    font-size: 13px;
}
.support-banner {
    display: flex;
    align-items: center;
    gap: 22px;
    margin-top: 48px;
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #f8fafc;
}
.support-icon {
    display: grid;
    place-items: center;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    color: #6880a2;
}
.support-banner > div {
    flex: 1;
}
.support-banner h2 {
    font-size: 17px;
    letter-spacing: -0.015em;
}
.support-banner p {
    max-width: 610px;
    margin-top: 7px;
    color: var(--muted);
    font-size: 13px;
}
.guide-container {
    padding-top: 34px;
}
.breadcrumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 9px;
    color: var(--muted);
    font-size: 12px;
}
.breadcrumbs a:hover {
    color: var(--blue);
}
.guide-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr) 170px;
    align-items: start;
    gap: 42px;
    padding-block: 36px 60px;
}
.guide-sidebar {
    position: sticky;
    top: 24px;
    min-width: 0;
}
.guide-sidebar nav {
    padding: 20px 18px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #f8faff;
}
.guide-sidebar .eyebrow {
    margin-bottom: 14px;
}
.guide-sidebar li a {
    display: block;
    padding: 8px 10px;
    border-radius: 7px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.45;
}
.guide-sidebar ol {
    display: grid;
    gap: 2px;
    margin: 0;
    padding: 0 0 14px;
    list-style: none;
    border-bottom: 1px solid var(--border);
}
.guide-sidebar li a:hover,
.guide-sidebar li a[aria-current="page"] {
    background: #e7efff;
    color: var(--blue);
}
.guide-back {
    display: block;
    margin-top: 15px;
    color: var(--muted);
    font-size: 12px;
}
.guide-back:hover {
    color: var(--blue);
}
.guide-article {
    min-width: 0;
}
.guide-heading {
    padding-bottom: 26px;
    border-bottom: 1px solid var(--border);
}
.guide-heading h1 {
    margin-top: 10px;
    font-size: clamp(30px, 4vw, 42px);
}
.guide-lead {
    max-width: 680px;
    margin-top: 15px;
    color: var(--muted);
    font-size: 17px;
}
.guide-audience {
    margin-top: 16px;
    color: var(--muted);
    font-size: 13px;
}
.guide-prerequisite {
    margin-top: 26px;
    padding: 18px 20px;
    border-left: 3px solid var(--blue);
    background: #f5f8ff;
}
.guide-prerequisite h2,
.guide-section h2 {
    font-size: 20px;
}
.guide-prerequisite p,
.guide-section > p {
    margin-top: 9px;
    color: var(--muted);
}
.guide-section {
    padding-top: 34px;
    scroll-margin-top: 24px;
}
.guide-instructions {
    display: grid;
    gap: 11px;
    margin: 18px 0 0;
    padding-left: 24px;
}
.guide-instructions li::marker {
    color: var(--blue);
    font-weight: 700;
}
.guide-note {
    margin-top: 20px;
    padding: 15px 18px;
    border: 1px solid #dbe7ff;
    border-radius: 9px;
    background: #f5f8ff;
    color: var(--muted);
    font-size: 14px;
}
.guide-note strong {
    color: var(--ink);
}
.guide-note p {
    margin-top: 4px;
}
.guide-screenshot {
    margin: 24px 0 0;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #f8fafc;
}
.guide-screenshot-link {
    display: block;
    color: var(--blue);
}
.guide-screenshot-link img {
    display: block;
    width: 100%;
    height: auto;
    cursor: zoom-in;
}
.guide-screenshot-action {
    display: block;
    padding: 10px 15px;
    font-size: 12px;
    text-align: right;
}
.guide-screenshot figcaption {
    padding: 11px 15px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 12px;
}
.guide-faq details {
    padding: 15px 0;
    border-bottom: 1px solid var(--border);
}
.guide-faq summary {
    cursor: pointer;
    font-weight: 650;
}
.guide-faq details p {
    margin-top: 8px;
    color: var(--muted);
    font-size: 14px;
}
.guide-next {
    display: grid;
    gap: 10px;
    margin-top: 38px;
    padding-top: 26px;
    border-top: 1px solid var(--border);
}
.guide-next h2 {
    margin-bottom: 3px;
    font-size: 18px;
}
.guide-next a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: var(--blue);
    font-size: 14px;
    font-weight: 650;
}
.guide-next svg {
    width: 17px;
}
.guide-toc {
    position: sticky;
    top: 24px;
    display: grid;
    gap: 8px;
    padding-left: 16px;
    border-left: 1px solid var(--border);
}
.guide-toc p {
    margin-bottom: 4px;
    color: var(--ink);
    font-size: 11px;
    font-weight: 750;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.guide-toc a {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.45;
}
.guide-toc a:hover {
    color: var(--blue);
}
.module-intro {
    color: var(--muted);
}
#module-guides-title {
    margin-top: 26px;
}
.module-guides {
    display: grid;
    gap: 12px;
    margin: 22px 0 0;
    padding: 0;
    list-style: none;
}
.module-guides a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
}
.module-guides a:hover {
    border-color: #a6c1f4;
    box-shadow: 0 4px 16px #22396306;
}
.module-guides h3 {
    font-size: 15px;
}
.module-guides p {
    margin-top: 3px;
    color: var(--muted);
    font-size: 13px;
}
.module-guides a > svg {
    margin-left: auto;
    color: var(--blue);
}
.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding-block: 30px;
    margin-top: 30px;
    color: var(--muted);
    font-size: 12px;
}
.site-footer p > a {
    color: var(--ink);
    font-weight: 700;
}
.site-footer > a {
    white-space: nowrap;
}
.site-footer a:hover,
.help-brand:hover {
    color: var(--blue);
}
@media (max-width: 1000px) {
    .topics-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .topic-card {
        min-height: 222px;
    }
    .support-banner {
        flex-wrap: wrap;
    }
    .support-banner .button {
        margin-left: 66px;
    }
    .guide-layout,
    .topics-with-sidebar {
        grid-template-columns: 190px minmax(0, 1fr);
        gap: 28px;
    }
    .guide-toc {
        grid-column: 2;
        position: static;
        padding: 18px 0 0;
        border-top: 1px solid var(--border);
        border-left: 0;
    }
}
@media (max-width: 700px) {
    .container {
        width: calc(100% - 36px);
    }
    .header-inner {
        min-height: 76px;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
        padding-block: 16px;
    }
    .brand {
        gap: 14px;
    }
    .brand img {
        width: 115px;
        height: 32px;
    }
    .header-actions {
        width: 100%;
        justify-content: space-between;
        gap: 12px;
    }
    .hero-inner {
        padding-block: 38px 34px;
    }
    .hero-intro {
        font-size: 14px;
    }
    .search-box {
        padding-inline: 12px;
        gap: 10px;
    }
    .search-box input {
        font-size: 16px;
    }
    .quick-links {
        gap: 7px;
    }
    .quick-links > span {
        width: 100%;
    }
    .content {
        padding-top: 24px;
    }
    .topics-with-sidebar {
        display: flex;
        flex-direction: column;
        gap: 24px;
        padding-top: 32px;
    }
    .help-sidebar {
        position: static;
        width: 100%;
    }
    .help-sidebar nav {
        padding: 16px;
    }
    .help-sidebar ol {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .topics-section {
        width: 100%;
    }
    .start-banner {
        flex-wrap: wrap;
        padding: 22px;
        gap: 18px;
    }
    .start-icon {
        width: 46px;
        height: 46px;
    }
    .start-copy {
        flex-basis: calc(100% - 64px);
    }
    .start-copy h2 {
        font-size: 20px;
    }
    .start-banner .button {
        width: 100%;
    }
    .section-heading {
        align-items: start;
        flex-direction: column;
        gap: 0;
    }
    .section-heading h2 {
        font-size: 22px;
    }
    .topics-grid {
        gap: 12px;
    }
    .topic-card {
        padding: 18px 15px;
        min-height: 260px;
    }
    .topic-card h3 {
        font-size: 15px;
    }
    .steps {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .steps li {
        padding-top: 18px;
    }
    .support-banner {
        padding: 22px;
        gap: 12px;
    }
    .support-icon {
        display: none;
    }
    .support-banner .button {
        margin-left: 0;
        margin-top: 8px;
        width: 100%;
    }
    .guide-container {
        padding-top: 24px;
    }
    .guide-layout {
        display: flex;
        flex-direction: column;
        gap: 28px;
        padding-block: 26px 40px;
    }
    .guide-sidebar,
    .guide-toc {
        position: static;
        width: 100%;
    }
    .guide-sidebar nav {
        padding: 16px;
    }
    .guide-sidebar ol {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .guide-article {
        width: 100%;
    }
    .guide-heading h1 {
        font-size: 32px;
    }
    .guide-lead {
        font-size: 15px;
    }
    .guide-toc {
        order: 3;
        padding: 18px 0 0;
    }
    .site-footer {
        align-items: start;
        font-size: 11px;
    }
    .site-footer p {
        max-width: 240px;
    }
}
@media (max-width: 380px) {
    .topics-grid {
        grid-template-columns: 1fr;
    }
    .topic-card {
        min-height: 210px;
    }
}
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition: none !important;
    }
}