.ju-shell {
    max-width: 1180px;
    margin: 0 auto;
    padding: 20px 14px 60px;
}

.ju-hero {
    padding: 32px;
    border-radius: 24px;
    background: linear-gradient(145deg, #101a2c, #0a1220);
    color: #eef4ff;
    margin-bottom: 22px;
}

.ju-hero .ju-eyebrow {
    color: #7dd3fc;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.ju-hero h1 {
    margin: 10px 0 8px;
    font-size: clamp(28px, 4.5vw, 44px);
    line-height: 1.1;
}

.ju-hero p {
    margin: 0;
    max-width: 720px;
    color: #b7c6dd;
    line-height: 1.6;
}

.ju-breadcrumb {
    margin-bottom: 16px;
    font-size: 13px;
}

.ju-breadcrumb a {
    color: #1689ff;
    text-decoration: none;
    font-weight: 700;
}

.ju-breadcrumb a:hover {
    text-decoration: underline;
}

.ju-breadcrumb span {
    color: #99a3b0;
    margin: 0 6px;
}

.ju-course-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.ju-course-card {
    display: flex;
    flex-direction: column;
    padding: 20px;
    border-radius: 18px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background: #fff;
    text-decoration: none;
    color: inherit;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.ju-course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.1);
}

.ju-course-icon {
    font-size: 30px;
    margin-bottom: 12px;
}

.ju-course-card-thumb {
    margin: -20px -20px 14px;
    border-radius: 18px 18px 0 0;
    overflow: hidden;
    line-height: 0;
    background: #0a1220;
}

.ju-course-card-thumb img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}

.ju-hero-media {
    margin-top: 20px;
    border-radius: 16px;
    overflow: hidden;
    line-height: 0;
    background: #000;
}

.ju-hero-media img,
.ju-hero-media video {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    display: block;
}

.ju-lesson-thumb {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: 10px;
    overflow: hidden;
    line-height: 0;
    background: #0a1220;
}

.ju-lesson-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ju-lesson-media {
    margin-bottom: 20px;
    border-radius: 14px;
    overflow: hidden;
    line-height: 0;
    background: #000;
}

.ju-lesson-media img,
.ju-lesson-media video {
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    display: block;
}

.ju-course-card h2 {
    margin: 0 0 6px;
    font-size: 17px;
}

.ju-course-card p {
    margin: 0 0 14px;
    color: #667085;
    font-size: 13px;
    line-height: 1.5;
    flex: 1;
}

.ju-course-badge {
    display: inline-flex;
    align-self: flex-start;
    align-items: center;
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.ju-course-badge-ready {
    /* #0e8c73 measured at 3.86:1 against this background -- fails WCAG AA
       (4.5:1) for this badge's small bold uppercase text. Darkened to
       #085e4c (7.13:1). */
    background: rgba(51, 214, 166, 0.12);
    color: #085e4c;
}

.ju-course-badge-soon {
    /* #a86400 measured at 4.30:1 against this background -- just under
       WCAG AA. Darkened to #7a4f00 (6.55:1). */
    background: rgba(255, 184, 108, 0.16);
    color: #7a4f00;
}

.ju-lesson-list {
    display: grid;
    gap: 10px;
}

.ju-lesson-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    border-radius: 14px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background: #fff;
    text-decoration: none;
    color: inherit;
}

.ju-lesson-row:hover {
    border-color: rgba(22, 137, 255, 0.4);
}

.ju-lesson-number {
    font-size: 20px;
    font-weight: 900;
    color: #1689ff;
    min-width: 34px;
}

.ju-lesson-row strong {
    display: block;
    font-size: 14px;
}

.ju-lesson-row span {
    display: block;
    color: #667085;
    font-size: 12px;
    margin-top: 3px;
}

.ju-lesson-body {
    padding: 24px;
    border-radius: 18px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background: #fff;
}

.ju-lesson-body h1 {
    margin: 0 0 10px;
    font-size: 24px;
}

.ju-lesson-briefing {
    color: #444;
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 18px;
}

.ju-lesson-full-body {
    color: #333;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 18px;
    white-space: pre-wrap;
}

.ju-inline-figure {
    display: block;
    width: 100%;
    max-width: 560px;
    margin: 4px auto 18px;
    border-radius: 12px;
}

.ju-table {
    /* Overrides .ju-lesson-full-body's white-space: pre-wrap so this
     * block's own internal structure isn't rendered as literal
     * whitespace -- layout here comes from the table markup, not from
     * preserved newlines. */
    white-space: normal;
    width: 100%;
    border-collapse: collapse;
    margin: 6px 0 20px;
    font-size: 13px;
}

.ju-table th,
.ju-table td {
    padding: 9px 12px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    text-align: left;
}

.ju-table thead th {
    background: #f5f8fc;
    color: #223;
    font-weight: 700;
}

.ju-table tbody tr:nth-child(even) {
    background: #fafbfd;
}

.ju-key-points {
    margin: 0 0 18px;
    padding-left: 20px;
}

.ju-key-points li {
    margin-bottom: 8px;
    line-height: 1.5;
}

.ju-student-note {
    padding: 14px 16px;
    border-radius: 12px;
    background: #f5f8fc;
    color: #445;
    font-size: 13px;
    font-style: italic;
}

.ju-empty-state {
    padding: 40px;
    text-align: center;
    color: #667085;
    border-radius: 18px;
    border: 1px dashed rgba(0, 0, 0, 0.14);
}

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

@media (max-width: 600px) {
    .ju-course-grid {
        grid-template-columns: 1fr;
    }

    .ju-hero {
        padding: 22px;
    }
}

.ju-cert-panel {
    margin-top: 24px;
    padding: 22px 24px;
    border-radius: 18px;
    background: #101a2c;
    color: #eef4ff;
}

.ju-cert-panel h2 {
    margin: 0 0 8px;
    font-size: 18px;
}

.ju-cert-panel p {
    margin: 0 0 16px;
    color: #b7c6dd;
    font-size: 13px;
    line-height: 1.6;
}

.ju-cert-status-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.ju-cert-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.ju-cert-badge-pass {
    background: rgba(14, 140, 115, 0.18);
    color: #4ade80;
}

.ju-cert-badge-pending {
    background: rgba(255, 255, 255, 0.08);
    color: #b7c6dd;
}

.ju-cert-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ju-exam-form {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.ju-exam-question {
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 14px;
    padding: 16px 18px;
    margin: 0;
    background: #fff;
}

.ju-exam-question-title {
    font-weight: 600;
    margin: 0 0 12px;
    color: #1a2333;
    font-size: 15px;
    line-height: 1.5;
}

.ju-exam-choice {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 4px;
    font-size: 14px;
    color: #333;
    cursor: pointer;
}

.ju-exam-choice input {
    width: auto;
}

.ju-exam-result {
    margin-top: 20px;
    padding: 24px;
    border-radius: 18px;
    text-align: center;
    background: #101a2c;
    color: #eef4ff;
}

.ju-exam-result h2 {
    margin: 0 0 8px;
    color: #eef4ff;
}

.ju-exam-result p {
    margin: 0 0 16px;
    color: #b7c6dd;
}

.ju-exam-result-pass {
    box-shadow: inset 0 0 0 1px rgba(74, 222, 128, 0.35);
}

.ju-exam-result-fail {
    box-shadow: inset 0 0 0 1px rgba(248, 113, 113, 0.35);
}

.ju-pledge-signer {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px;
    margin-top: 18px;
    padding: 14px 18px;
    border-radius: 12px;
    background: #101a2c;
    color: #eef4ff;
    font-size: 14px;
}

.ju-pledge-signer-label {
    color: #7dd3fc;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.ju-pledge-signer-context {
    color: #b7c6dd;
    font-size: 13px;
}

.ju-pledge-body {
    margin-top: 18px;
    padding: 22px 24px;
    border-radius: 18px;
    background: #f5f8fc;
    color: #333;
    font-size: 14px;
    line-height: 1.7;
    white-space: pre-wrap;
}

.ju-lesson-nav {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    gap: 14px;
    margin-top: 26px;
    padding-top: 22px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.ju-lesson-nav-prev,
.ju-lesson-nav-next {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    border-radius: 14px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background: #fff;
    text-decoration: none;
    color: #1689ff;
    font-size: 13px;
    font-weight: 700;
    max-width: 46%;
}

.ju-lesson-nav-prev span,
.ju-lesson-nav-next span {
    color: #101a2c;
    font-weight: 600;
}

.ju-lesson-nav-prev:hover,
.ju-lesson-nav-next:hover {
    border-color: rgba(22, 137, 255, 0.4);
}

.ju-lesson-nav-next {
    margin-left: auto;
    text-align: right;
    flex-direction: row-reverse;
}

.ju-lesson-nav-exam {
    background: #101a2c;
    border-color: #101a2c;
    color: #7dd3fc;
}

.ju-lesson-nav-exam span {
    color: #eef4ff;
}

@media (max-width: 640px) {
    .ju-lesson-nav-prev span,
    .ju-lesson-nav-next span {
        display: none;
    }
}