.learn-page {
    padding: 36px 0 80px;
    min-height: calc(100dvh - 180px);
}

.learn-kicker {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    align-items: center;
    margin-bottom: 18px;
}

.learn-kicker a {
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
}

.learn-kicker a:hover {
    color: var(--leaf);
}

.learn-hero h1 {
    font-size: clamp(28px, 5vw, 46px);
    margin-bottom: 12px;
}

.learn-hero p {
    color: var(--ink-soft);
    max-width: 40em;
}

.course-catalog {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin: 36px 0;
}

.course-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 24px;
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    min-height: 240px;
}

.course-item h2 {
    font-size: 24px;
}

.course-item p {
    color: var(--ink-soft);
    flex: 1;
}

.course-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--muted);
    font-size: 13px;
}

.course-meta span {
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--paper-deep);
}

.course-item .btn {
    align-self: flex-start;
    margin-top: 8px;
}

.empty-block {
    text-align: center;
    padding: 48px 20px;
    background: var(--cream);
    border: 1px dashed var(--line);
    border-radius: var(--radius);
    color: var(--ink-soft);
}

.player {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 24px;
    margin-top: 28px;
    align-items: start;
}

.lesson-side {
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px 14px;
    position: sticky;
    top: calc(var(--header-h) + 16px);
}

.lesson-side h2 {
    font-size: 16px;
    margin: 0 12px 12px;
}

.lesson-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.lesson-list button {
    width: 100%;
    display: flex;
    gap: 10px;
    align-items: flex-start;
    text-align: left;
    background: transparent;
    border: 0;
    border-radius: 12px;
    padding: 10px 12px;
    cursor: pointer;
    color: inherit;
}

.lesson-list button:hover,
.lesson-list button.is-on {
    background: var(--paper);
}

.lesson-list .idx {
    flex: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 12px;
    font-weight: 700;
    background: var(--paper-deep);
}

.lesson-list button.is-done .idx {
    background: var(--teal);
    color: #fff;
}

.lesson-list small {
    display: block;
    color: var(--muted);
    font-size: 12px;
}

.lesson-main {
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    min-height: 420px;
}

.lesson-type {
    color: var(--leaf);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.lesson-main h2 {
    margin: 8px 0 20px;
    font-size: clamp(24px, 3vw, 32px);
}

.lesson-body {
    color: var(--ink-soft);
}

.lesson-body p,
.lesson-body li {
    margin: 0 0 12px;
}

.lesson-body ul,
.lesson-body ol {
    padding-left: 1.2em;
}

.media-frame {
    margin: 0 0 20px;
    border-radius: 16px;
    overflow: hidden;
    background: var(--paper-deep);
    border: 1px solid var(--line);
}

.media-frame img,
.media-frame video {
    width: 100%;
    display: block;
}

.media-frame iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 0;
    display: block;
}

.media-empty {
    min-height: 220px;
    display: grid;
    place-items: center;
    text-align: center;
    padding: 32px;
    color: var(--muted);
}

.lesson-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.progress-bar {
    height: 6px;
    background: var(--paper-deep);
    border-radius: 99px;
    overflow: hidden;
    margin: 8px 12px 16px;
}

.progress-bar > span {
    display: block;
    height: 100%;
    background: var(--teal);
    width: 0;
}

.exam-list {
    display: grid;
    gap: 18px;
    margin-top: 24px;
}

.exam-card {
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
}

.exam-card h3 {
    font-size: 18px;
    margin-bottom: 14px;
}

.option-list {
    display: grid;
    gap: 8px;
}

.option-list label {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 12px;
    cursor: pointer;
}

.option-list label:hover,
.option-list label.is-on {
    border-color: var(--teal);
    background: rgba(0, 168, 168, 0.06);
}

.option-list input {
    width: auto;
    min-height: 0;
    margin-top: 4px;
}

.exam-card textarea {
    width: 100%;
    min-height: 140px;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 12px;
    background: var(--paper);
}

.result-panel {
    margin-top: 28px;
    padding: 28px;
    border-radius: var(--radius);
    background: var(--cream);
    border: 1px solid var(--line);
    text-align: center;
}

.result-panel.is-pass {
    border-color: var(--teal);
}

.result-panel.is-wait {
    border-color: var(--purple);
}

.result-panel.is-fail {
    border-color: var(--coral);
}

.result-panel h2 {
    margin: 8px 0 12px;
}

.verify-panel {
    max-width: 560px;
    margin: 0 auto 32px;
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
}

.verify-panel form,
.identity-form {
    display: grid;
    gap: 12px;
}

.identity-form label,
.verify-panel label {
    font-weight: 700;
}

.verify-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.verify-tabs button {
    border: 0;
    background: var(--paper-deep);
    border-radius: 999px;
    padding: 8px 14px;
    cursor: pointer;
    font-weight: 700;
}

.verify-tabs button.is-on {
    background: var(--navy);
    color: #fff;
}

.gate-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 8, 72, 0.35);
    z-index: 60;
}

.gate-card {
    position: fixed;
    z-index: 61;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(440px, calc(100% - 32px));
    background: var(--cream);
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--shadow);
}

.gate-card h2 {
    margin-bottom: 8px;
}

.gate-card p {
    color: var(--ink-soft);
    margin-bottom: 16px;
}

.identity-form input {
    width: 100%;
}

.status-banner {
    margin: 16px 0 0;
    padding: 12px 16px;
    border-radius: 12px;
    background: var(--purple-soft);
    color: var(--navy);
}

.account-page {
    min-height: calc(100dvh - 180px);
    display: grid;
    place-items: start center;
    padding: 40px 16px 80px;
}

.account-card {
    width: min(440px, 100%);
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px 24px 32px;
    box-shadow: var(--shadow);
}

.account-card h1 {
    margin: 0 0 8px;
    font-size: 28px;
}

.account-card h2 {
    margin: 20px 0 8px;
    font-size: 16px;
}

.account-lead {
    color: var(--ink-soft);
    margin: 0 0 18px;
}

.account-form,
.account-actions {
    display: grid;
    gap: 10px;
}

.account-form label {
    font-weight: 700;
    margin-top: 6px;
}

.account-form input {
    width: 100%;
    min-height: 44px;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 12px;
    font: inherit;
}

.account-name-lock {
    margin: 0;
    padding: 10px 12px;
    border-radius: 12px;
    background: var(--paper);
    border: 1px dashed var(--line);
    font-weight: 700;
}

.account-form .form-note.is-ok {
    color: var(--leaf);
}

.account-form .form-note.is-err {
    color: var(--coral-deep);
}

.account-actions {
    margin-bottom: 8px;
}

.account-actions .btn {
    width: 100%;
}

body[data-page="exam"] .header-inner > .header-cta:first-of-type {
    margin-left: auto;
}

@media (max-width: 860px) {
    .course-catalog,
    .player {
        grid-template-columns: 1fr;
    }

    .lesson-side {
        position: static;
    }
}