:root {
    --c-primary: #6777ef;
    --c-primary-600: #4e5fd6;
    --c-primary-50: #eef0fe;
    --c-ink: #1b2437;
    --c-muted: #606b82;
    --c-line: #e2e6f0;
    --c-surface: #fff;
    --c-bg: #f6f7fb;
    --c-danger: #c92a32;
    --c-focus: #2538c7;
    --radius-sm: 8px;
    --radius-md: 14px;
    --shadow-card: 0 1px 2px rgba(27, 36, 55, .06), 0 12px 28px rgba(27, 36, 55, .08);
    --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--c-ink);
    background: var(--c-bg);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
}

.skip-link {
    position: fixed;
    top: 8px;
    left: 8px;
    z-index: 2000;
    padding: 10px 14px;
    color: var(--c-focus);
    background: #fff;
    border: 2px solid var(--c-focus);
    border-radius: var(--radius-sm);
    transform: translateY(-150%);
}

.skip-link:focus {
    transform: translateY(0);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 3px solid rgba(37, 56, 199, .35) !important;
    outline-offset: 2px;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    color: #fff;
    background: var(--c-primary);
    border-radius: 9px;
    font-weight: 750;
}

.auth-page {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--c-primary-50) 0, var(--c-bg) 42%, #fff 100%);
}

.auth-shell {
    width: min(100% - 32px, 480px);
    min-height: 100vh;
    margin: 0 auto;
    padding: 40px 0;
}

.auth-brand {
    margin-bottom: 24px;
    text-align: center;
}

.auth-brand a,
.public-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--c-ink);
    font-weight: 700;
    text-decoration: none;
}

.auth-card {
    overflow: hidden;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
}

.auth-card .card-body {
    padding: 32px;
}

.auth-heading {
    margin-bottom: 28px;
}

.auth-heading h1 {
    margin: 0 0 10px;
    color: var(--c-ink);
    font-size: clamp(1.55rem, 4vw, 2rem);
    line-height: 1.25;
}

.auth-heading p:last-child,
.foundation-copy > p {
    color: var(--c-muted);
}

.auth-eyebrow {
    margin-bottom: 6px;
    color: var(--c-primary-600) !important;
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .04em;
}

.auth-card label {
    color: var(--c-ink);
    font-weight: 600;
}

.auth-card .form-control {
    min-height: 46px;
    border-color: #cbd2e1;
    border-radius: var(--radius-sm);
    font-size: 16px;
}

.auth-card .form-control:focus {
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(103, 119, 239, .16);
}

.auth-inline-link {
    font-size: .88rem;
}

.password-field {
    position: relative;
}

.password-field .form-control {
    padding-right: 104px;
}

.password-toggle {
    position: absolute;
    top: 1px;
    right: 1px;
    width: 100px;
    height: 44px;
    padding: 0;
    color: var(--c-primary-600);
    background: transparent;
    border: 0;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: .84rem;
    font-weight: 600;
}

.auth-card-footer {
    padding: 18px 24px;
    color: var(--c-muted);
    background: #fafbfe;
    border-top: 1px solid var(--c-line);
    text-align: center;
}

.public-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-line);
}

.public-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    gap: 16px;
}

.public-nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.public-nav-link { color: var(--c-ink); font-weight: 650; padding: 10px 12px; }
.public-nav-link.active, .public-nav-link:hover { color: var(--c-primary-600); }
.public-menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--c-line); border-radius: var(--radius-sm); background: #fff; padding: 10px; }
.public-menu-toggle span { display: block; height: 2px; margin: 4px 0; background: var(--c-ink); }
.public-header.is-scrolled .public-nav { min-height: 62px; }
.public-page .btn-primary { background: var(--c-primary-600); border-color: var(--c-primary-600); }
.public-page .btn-primary:hover { background: #394bbf; border-color: #394bbf; }
.public-page .btn-outline-primary { color: var(--c-primary-600); border-color: var(--c-primary-600); }
.public-page .btn-outline-primary:hover { color: #fff; background: var(--c-primary-600); }
.public-page .btn { border-radius: var(--radius-sm); font-weight: 650; }
.site-eyebrow { color: var(--c-primary-600); font-size: .76rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.site-hero { overflow: hidden; background: linear-gradient(130deg, #f7f8ff, #fff 70%); border-bottom: 1px solid var(--c-line); }
.site-hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr); align-items: center; gap: 48px; min-height: 570px; padding-top: 76px; padding-bottom: 76px; }
.site-hero h1 { max-width: 740px; margin: 14px 0 20px; font-size: clamp(2.5rem, 5.5vw, 4.8rem); line-height: 1.08; letter-spacing: -.055em; font-weight: 780; }
.site-lead { max-width: 610px; color: var(--c-muted); font-size: clamp(1rem, 1.7vw, 1.22rem); }
.site-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.site-hero-art { position: relative; display: grid; align-content: center; gap: 18px; min-height: 380px; padding: 35px 68px 35px 18px; }
.site-hero-art::before { content: ''; position: absolute; inset: 10px 20px 10px 55px; border: 1px solid #cdd3ff; border-radius: 48% 52% 42% 58%; transform: rotate(-14deg); }
.site-art-frame { position: relative; z-index: 1; display: grid; grid-template-columns: 50px 1fr; gap: 2px 12px; padding: 22px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-md); box-shadow: var(--shadow-card); transform: rotate(-3deg); }
.site-art-frame:nth-child(2) { margin-left: 46px; transform: rotate(3deg); }
.site-art-frame > span { grid-row: span 2; color: var(--c-primary-600); font-size: 1.8rem; font-weight: 800; line-height: 1; }
.site-art-frame strong { font-size: 1.06rem; }
.site-art-frame small { color: var(--c-muted); }
.site-art-orbit { position: absolute; right: 0; bottom: 20px; z-index: 2; display: flex; align-items: center; gap: 8px; width: 110px; height: 110px; padding: 13px; border-radius: 50%; color: #fff; background: var(--c-primary-600); font-size: 2.8rem; font-weight: 800; line-height: 1; box-shadow: 0 10px 28px rgba(78, 95, 214, .25); }
.site-art-orbit span { font-size: .8rem; font-weight: 600; line-height: 1.2; }
.site-stats { background: #fff; border-bottom: 1px solid var(--c-line); }
.site-stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); padding-top: 24px; padding-bottom: 24px; }
.site-stats-grid > div { display: grid; gap: 1px; padding: 8px 24px; border-right: 1px solid var(--c-line); }
.site-stats-grid > div:first-child { padding-left: 0; }
.site-stats-grid > div:last-child { border-right: 0; }
.site-stats-grid strong { color: var(--c-ink); font-size: 1.7rem; line-height: 1.2; }
.site-stats-grid span { color: var(--c-muted); font-size: .9rem; }
.site-section { padding: 76px 0; }
.site-section-tint { background: #edf0fa; }
.site-section-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 28px; }
.site-section-heading h2, .site-access-panel h2 { margin: 6px 0 8px; font-size: clamp(1.8rem, 3vw, 2.7rem); letter-spacing: -.035em; line-height: 1.18; }
.site-section-heading p:last-child { margin: 0; color: var(--c-muted); }
.site-text-link { flex: none; padding: 10px 0; color: var(--c-primary-600); font-weight: 700; }
.site-empty { padding: 48px 28px; border: 1px dashed #bfc7d9; border-radius: var(--radius-md); background: #fff; text-align: center; }
.site-empty h3 { margin-bottom: 8px; font-size: 1.25rem; }
.site-empty p { color: var(--c-muted); }
.site-course-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.site-course-card { min-width: 0; overflow: hidden; border: 1px solid var(--c-line); border-radius: var(--radius-md); background: #fff; transition: transform .2s, box-shadow .2s; }
.site-course-card:hover, .site-course-card:focus-within { transform: translateY(-3px); box-shadow: var(--shadow-card); }
.site-course-card-link { display: block; height: 100%; color: inherit; text-decoration: none; }
.site-course-card-link:hover { color: inherit; text-decoration: none; }
.site-course-image, .site-detail-image { overflow: hidden; aspect-ratio: 16 / 9; background: #e9edfb; }
.site-course-image img, .site-detail-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.site-course-placeholder { display: grid; place-items: center; width: 100%; height: 100%; background: linear-gradient(135deg, #dfe4ff, #f1f3ff); }
.site-course-placeholder span { display: grid; place-items: center; width: 68px; height: 68px; border: 1px solid #b7c2fb; border-radius: 18px; color: var(--c-primary-600); font-size: 2.3rem; font-weight: 800; }
.site-course-content { display: flex; flex-direction: column; min-height: 205px; padding: 18px; }
.site-category { display: inline-block; align-self: start; color: var(--c-primary-600); font-size: .75rem; font-weight: 750; letter-spacing: .05em; text-transform: uppercase; }
.site-enrolled-label { align-self: start; margin-top: 7px; padding: 3px 8px; border-radius: 4px; background: #e6f6eb; color: #207544; font-size: .73rem; font-weight: 700; }
.site-course-content h3 { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; margin: 8px 0; font-size: 1.06rem; line-height: 1.35; }
.site-course-meta { color: var(--c-muted); font-size: .78rem; }
.site-course-bottom { display: flex; justify-content: space-between; align-items: end; gap: 10px; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--c-line); }
.site-course-bottom > span { color: var(--c-muted); font-size: .72rem; text-align: right; }
.site-price { display: grid; gap: 1px; }
.site-price del { color: var(--c-muted); font-size: .78rem; }
.site-price strong { color: var(--c-ink); font-size: 1.1rem; line-height: 1.2; }
.site-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin: 0; padding: 0; list-style: none; }
.site-steps li { padding: 24px; border-top: 3px solid var(--c-primary-600); background: #fff; border-radius: 0 0 var(--radius-sm) var(--radius-sm); }
.site-steps li > span { color: var(--c-primary-600); font-weight: 800; }
.site-steps h3 { margin: 22px 0 8px; font-size: 1.08rem; }
.site-steps p { margin: 0; color: var(--c-muted); font-size: .9rem; }
.site-phase-note { margin: 24px 0 0; color: var(--c-muted); font-size: .88rem; }
.site-access-panel { display: flex; justify-content: space-between; align-items: center; gap: 48px; padding: 38px 46px; border-radius: var(--radius-md); background: #e9edff; }
.site-access-panel > div { max-width: 680px; }
.site-access-panel p:last-child { margin-bottom: 0; color: var(--c-muted); }
.site-access-panel .btn { flex: none; }
.site-page { padding-top: 58px; padding-bottom: 80px; }
.site-page-heading { max-width: 710px; margin-bottom: 34px; }
.site-page-heading h1, .site-detail h1 { font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.13; letter-spacing: -.04em; }
.site-page-heading p:last-child { color: var(--c-muted); }
.site-filters { display: grid; grid-template-columns: minmax(230px, 1.5fr) minmax(160px, 1fr) minmax(170px, 1fr) auto; align-items: end; gap: 12px; padding: 18px; border: 1px solid var(--c-line); border-radius: var(--radius-md); background: #fff; }
.site-filters .form-group { margin: 0; }
.site-filters label { font-size: .85rem; font-weight: 700; }
.site-filters .form-control, .site-filters .btn { min-height: 44px; }
.site-results-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin: 34px 0 18px; }
.site-results-heading h2 { margin: 0; font-size: 1.12rem; }
.site-pagination { display: flex; justify-content: center; margin-top: 30px; }
.site-preview-banner { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin-bottom: 24px; padding: 16px 20px; border: 1px solid #e7cf83; border-radius: var(--radius-sm); background: #fff5d8; }
.site-preview-banner a { margin-left: auto; }
.site-breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; color: var(--c-muted); font-size: .85rem; }
.site-breadcrumb > span:last-child { overflow: hidden; max-width: 420px; text-overflow: ellipsis; white-space: nowrap; }
.site-detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; align-items: start; gap: 36px; }
.site-detail-main > .site-category { margin-bottom: 10px; }
.site-detail h1 { margin-bottom: 16px; }
.site-detail-summary { color: var(--c-muted); font-size: 1.1rem; }
.site-detail-facts { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0; }
.site-detail-facts span { padding: 6px 11px; border-radius: 4px; background: #edf0fa; font-size: .82rem; font-weight: 650; }
.site-instructor { color: var(--c-muted); font-size: .9rem; }
.site-detail-image { margin-top: 28px; border-radius: var(--radius-md); }
.site-detail-section { margin-top: 48px; }
.site-detail-section h2 { margin-bottom: 20px; font-size: 1.7rem; }
.site-rich-text { overflow-wrap: anywhere; line-height: 1.75; }
.site-rich-text a { text-decoration: underline; }
.site-curriculum-section { overflow: hidden; margin-bottom: 10px; border: 1px solid var(--c-line); border-radius: var(--radius-sm); background: #fff; }
.site-curriculum-toggle { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 16px 18px; border: 0; background: #fff; color: var(--c-ink); text-align: left; cursor: pointer; }
.site-curriculum-toggle > span:first-child { display: grid; gap: 2px; }
.site-curriculum-toggle small { color: var(--c-muted); }
.site-lesson-list { margin: 0; padding: 0 18px; list-style: none; border-top: 1px solid var(--c-line); }
.site-lesson-list li { display: flex; align-items: center; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--c-line); font-size: .91rem; }
.site-lesson-list li:last-child { border-bottom: 0; }
.site-lesson-list li > span:first-child { color: var(--c-primary-600); }
.site-lesson-list small { margin-left: auto; color: var(--c-muted); white-space: nowrap; }
.site-purchase-card { position: sticky; top: 94px; padding: 26px; border: 1px solid var(--c-line); border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow-card); }
.site-purchase-card .site-price strong { font-size: 1.75rem; }
.site-purchase-card > p { margin: 18px 0; color: var(--c-muted); font-size: .9rem; }
.site-state-tag { display: block; padding: 12px; border-radius: var(--radius-sm); background: var(--c-primary-50); color: var(--c-primary-600); font-weight: 700; text-align: center; }
.site-purchase-card .site-card-note { margin-bottom: 0; font-size: .84rem; }
.site-card-secondary { display: block; margin-top: 12px; text-align: center; }
.site-footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 18px 30px; padding-top: 18px; padding-bottom: 18px; }
.site-footer-inner strong { color: var(--c-ink); }
.site-footer-inner p { max-width: 410px; margin: 4px 0 0; font-size: .85rem; }
.site-footer-inner nav { display: flex; flex-wrap: wrap; gap: 16px; align-items: start; }
.site-footer-inner small { grid-column: 1 / -1; }

@media (max-width: 991.98px) {
    .site-hero-grid { grid-template-columns: 1fr; gap: 20px; min-height: auto; }
    .site-hero-art { max-width: 560px; min-height: 300px; }
    .site-course-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .site-steps { grid-template-columns: repeat(2, 1fr); }
    .site-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .site-detail-grid { grid-template-columns: minmax(0, 1fr) 280px; gap: 22px; }
}

@media (max-width: 767.98px) {
    .public-nav { position: relative; flex-wrap: wrap; }
    .public-menu-toggle { display: block; margin-left: auto; }
    .public-nav-actions { display: none; flex-basis: 100%; flex-direction: column; align-items: stretch; padding: 8px 0 18px; border-top: 1px solid var(--c-line); }
    .public-nav-actions.is-open { display: flex; }
    .public-nav-actions .btn, .public-nav-link { min-height: 44px; text-align: left; }
    .site-hero-grid { padding-top: 48px; padding-bottom: 42px; }
    .site-hero-art { display: none; }
    .site-section { padding: 54px 0; }
    .site-stats-grid { grid-template-columns: 1fr; }
    .site-stats-grid > div { padding: 12px 0; border-right: 0; border-bottom: 1px solid var(--c-line); }
    .site-stats-grid > div:last-child { border-bottom: 0; }
    .site-detail-grid { grid-template-columns: 1fr; }
    .site-detail { padding-bottom: 210px; }
    .site-purchase-card { position: fixed; top: auto; right: 0; bottom: 0; left: 0; z-index: 90; max-height: 42vh; overflow-y: auto; padding: 14px 20px; border-radius: 16px 16px 0 0; box-shadow: 0 -12px 28px rgba(27, 36, 55, .14); }
    .site-purchase-card > p { margin: 6px 0 10px; }
    .site-purchase-card .site-price strong { font-size: 1.3rem; }
    .site-access-panel { flex-direction: column; align-items: start; gap: 20px; padding: 28px; }
}

@media (max-width: 575.98px) {
    .site-course-grid, .site-steps, .site-filters { grid-template-columns: 1fr; }
    .site-section-heading, .site-results-heading { align-items: start; flex-direction: column; }
    .site-page { padding-top: 36px; padding-bottom: 50px; }
    .site-footer-inner { grid-template-columns: 1fr; }
    .site-footer-inner small { grid-column: auto; }
}

.foundation-hero {
    display: flex;
    align-items: center;
    min-height: calc(100vh - 137px);
    padding: 72px 0;
}

.foundation-copy {
    max-width: 720px;
}

.foundation-copy h1 {
    margin-bottom: 18px;
    font-size: clamp(2rem, 6vw, 4rem);
    line-height: 1.08;
    letter-spacing: -.035em;
}

.foundation-copy > p:not(.auth-eyebrow) {
    max-width: 650px;
    font-size: 1.08rem;
}

.foundation-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.public-footer {
    padding: 20px 0;
    color: var(--c-muted);
    background: var(--c-surface);
    border-top: 1px solid var(--c-line);
}

.error-page {
    display: flex;
    align-items: center;
    min-height: calc(100vh - 137px);
    padding: 64px 0;
}

.error-panel {
    max-width: 580px;
}

.error-code {
    margin-bottom: 8px;
    color: var(--c-primary-600);
    font-size: 1rem;
    font-weight: 750;
}

.error-panel h1 {
    margin-bottom: 16px;
    font-size: clamp(2rem, 5vw, 3.25rem);
}

.error-panel > p:not(.error-code) {
    margin-bottom: 24px;
    color: var(--c-muted);
}

@media (max-width: 575.98px) {
    .auth-shell {
        width: min(100% - 24px, 480px);
        padding: 24px 0;
    }

    .auth-card .card-body {
        padding: 24px 20px;
    }

    .public-nav {
        min-height: 64px;
    }

    .public-brand > span:last-child {
        display: none;
    }

    .public-nav-actions .btn {
        min-height: 44px;
        padding: 10px 12px;
    }

    .foundation-hero {
        min-height: calc(100vh - 121px);
        padding: 52px 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}