.courses-page {
    --courses-accent: #2563eb;
    --courses-accent-strong: #1d4ed8;
    --courses-accent-soft: #eaf2ff;
    --courses-bg: #f7f8fb;
    --courses-surface: #ffffff;
    --courses-surface-muted: #eef1f5;
    --courses-text: #172033;
    --courses-muted: #637083;
    --courses-border: #d9dee8;
    --courses-success: #0f8a4b;
    --courses-success-soft: #e5f7ed;
    --courses-warning: #a66300;
    --courses-warning-soft: #fff2d8;
    --courses-danger: #b42318;
    --courses-danger-soft: #ffebe9;
    --courses-radius: 8px;
    --courses-shadow: 0 18px 42px rgba(23, 32, 51, 0.08);
    --courses-space: 20px;
    min-height: 100vh;
    margin: 0;
    background: var(--courses-bg);
    color: var(--courses-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.55;
}

.courses-page[data-courses-theme="corporate"] {
    --courses-bg: #f3f5f8;
    --courses-surface: #ffffff;
    --courses-surface-muted: #e7ebf0;
    --courses-text: #121826;
    --courses-muted: #5a6577;
    --courses-border: #cbd3df;
    --courses-radius: 6px;
    --courses-shadow: 0 12px 28px rgba(18, 24, 38, 0.10);
}

.courses-page[data-courses-theme="minimal"] {
    --courses-bg: #fbfbfa;
    --courses-surface: #ffffff;
    --courses-surface-muted: #f1f1ef;
    --courses-text: #1f2328;
    --courses-muted: #6c7077;
    --courses-border: #e2e2df;
    --courses-radius: 4px;
    --courses-shadow: none;
}

.courses-page * {
    box-sizing: border-box;
}

.courses-page input[type="file"] {
    max-width: 100%;
}

.courses-page a {
    color: var(--courses-accent-strong);
    text-decoration: none;
}

.courses-page a:hover {
    text-decoration: underline;
}

.courses-shell {
    width: min(1100px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 48px;
}

.courses-density-compact .courses-shell {
    padding-top: 20px;
    padding-bottom: 32px;
}

.courses-topbar,
.courses-header,
.courses-card-header,
.courses-actions,
.courses-lesson-nav,
.courses-meta,
.courses-progress-row,
.courses-empty-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.courses-topbar,
.courses-header {
    justify-content: space-between;
    margin-bottom: 24px;
}

.courses-header {
    align-items: flex-end;
}

.courses-page h1,
.courses-page h2,
.courses-page h3,
.courses-page p {
    margin-top: 0;
}

.courses-page h1 {
    margin-bottom: 8px;
    font-size: clamp(30px, 5vw, 48px);
    line-height: 1.08;
    letter-spacing: 0;
}

.courses-page h2 {
    margin-bottom: 12px;
    font-size: 24px;
    line-height: 1.2;
    letter-spacing: 0;
}

.courses-page h3 {
    margin-bottom: 8px;
    font-size: 18px;
    line-height: 1.25;
    letter-spacing: 0;
}

.courses-muted {
    color: var(--courses-muted);
}

.courses-meta {
    flex-wrap: wrap;
    color: var(--courses-muted);
    font-size: 14px;
}

.courses-button,
.courses-page button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    border: 1px solid var(--courses-accent);
    border-radius: 6px;
    padding: 8px 14px;
    background: var(--courses-accent);
    color: #ffffff !important;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    line-height: 1.2;
    text-decoration: none !important;
}

.courses-button-secondary,
.courses-page button.courses-button-secondary {
    border-color: var(--courses-border);
    background: var(--courses-surface);
    color: var(--courses-text) !important;
}

.courses-course-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.courses-card {
    border: 1px solid var(--courses-border);
    border-radius: var(--courses-radius);
    background: var(--courses-surface);
    overflow: hidden;
}

.courses-cards-soft .courses-card {
    box-shadow: var(--courses-shadow);
}

.courses-cards-flat .courses-card {
    border-color: transparent;
    box-shadow: none;
}

.courses-card-body {
    padding: var(--courses-space);
}

.courses-density-compact .courses-card-body {
    padding: 14px;
}

.courses-cover {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    background: var(--courses-surface-muted);
}

.courses-card-header {
    align-items: flex-start;
    justify-content: space-between;
}

.courses-card-title {
    margin: 0 0 8px;
    font-size: 20px;
    line-height: 1.25;
}

.courses-summary {
    color: var(--courses-muted);
}

.courses-progress-row {
    margin-top: 16px;
    justify-content: space-between;
}

.courses-progress {
    width: 100%;
    height: 8px;
    border-radius: 999px;
    background: var(--courses-surface-muted);
    overflow: hidden;
}

.courses-progress span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: var(--courses-accent);
}

.courses-progress-pill .courses-progress {
    height: 14px;
    padding: 3px;
}

.courses-progress-pill .courses-progress span {
    height: 8px;
}

.courses-progress-line .courses-progress {
    height: 3px;
    border-radius: 0;
}

.courses-badge {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    border-radius: 999px;
    padding: 3px 9px;
    background: var(--courses-accent-soft);
    color: var(--courses-accent-strong);
    font-size: 12px;
    font-weight: 650;
}

.courses-badge.completed,
.courses-badge.active,
.courses-badge.passed,
.courses-badge.accepted {
    background: var(--courses-success-soft);
    color: var(--courses-success);
}

.courses-badge.in_progress,
.courses-badge.not_started,
.courses-badge.submitted {
    background: var(--courses-accent-soft);
    color: var(--courses-accent-strong);
}

.courses-badge.failed,
.courses-badge.blocked,
.courses-badge.expired {
    background: var(--courses-danger-soft);
    color: var(--courses-danger);
}

.courses-badge.draft,
.courses-badge.preview,
.courses-badge.needs_revision {
    background: var(--courses-warning-soft);
    color: var(--courses-warning);
}

.courses-empty-state {
    border: 1px dashed var(--courses-border);
    border-radius: var(--courses-radius);
    padding: 24px;
    background: var(--courses-surface);
}

.courses-empty-state h2,
.courses-empty-state h3 {
    margin-bottom: 8px;
}

.courses-course-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
    gap: 24px;
    align-items: start;
    margin-bottom: 30px;
}

.courses-course-hero .courses-card {
    align-self: stretch;
}

.courses-lesson-list {
    display: grid;
    gap: 12px;
    padding: 0;
    list-style: none;
}

.courses-lesson-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    border: 1px solid var(--courses-border);
    border-radius: var(--courses-radius);
    padding: 14px 16px;
    background: var(--courses-surface);
}

.courses-lesson-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 20px;
}

.courses-lesson-nav {
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 28px 0 0;
    padding-top: 18px;
    border-top: 1px solid var(--courses-border);
}

.courses-lesson-nav-top {
    justify-content: flex-start;
    margin: 0 0 20px;
    padding-top: 0;
    border-top: 0;
}

.courses-lesson-nav a,
.courses-lesson-nav span {
    max-width: 32%;
}

.courses-lesson-nav-current {
    text-align: center;
}

.courses-lesson-nav-next {
    text-align: right;
}

.courses-content {
    max-width: 860px;
}

.courses-content img,
.courses-content iframe {
    max-width: 100%;
}

.courses-video {
    position: relative;
    width: 100%;
    max-width: 860px;
    aspect-ratio: 16 / 9;
    margin: 18px 0;
    border-radius: var(--courses-radius);
    background: #0f172a;
    overflow: hidden;
}

.courses-video iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.courses-file-list,
.courses-quiz-list {
    display: grid;
    gap: 10px;
    padding: 0;
    list-style: none;
}

.courses-file-list a {
    display: block;
    border: 1px solid var(--courses-border);
    border-radius: var(--courses-radius);
    padding: 12px 14px;
    background: var(--courses-surface);
}

.courses-quiz-question {
    margin: 0 0 14px;
    border: 1px solid var(--courses-border);
    border-radius: var(--courses-radius);
    padding: 16px;
    background: var(--courses-surface);
}

.courses-quiz-answer {
    display: block;
    margin-top: 8px;
}

.courses-homework {
    margin: 28px 0;
    border-top: 1px solid var(--courses-border);
    border-bottom: 1px solid var(--courses-border);
    padding: 24px 0;
}

.courses-homework-description {
    margin-bottom: 16px;
}

.courses-homework-submission,
.courses-comment {
    border: 1px solid var(--courses-border);
    border-radius: var(--courses-radius);
    padding: 14px;
    background: var(--courses-surface);
}

.courses-homework-answer {
    white-space: normal;
}

.courses-homework-form {
    display: grid;
    gap: 10px;
    max-width: 860px;
    margin: 16px 0 0;
}

.courses-homework-form label {
    font-weight: 650;
}

.courses-homework-form textarea {
    width: 100%;
    min-height: 120px;
    border: 1px solid var(--courses-border);
    border-radius: var(--courses-radius);
    padding: 10px 12px;
    background: var(--courses-surface);
    color: var(--courses-text);
    font: inherit;
    resize: vertical;
}

.courses-comments {
    display: grid;
    gap: 10px;
    margin-top: 10px;
}

.courses-comment header {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 6px;
}

.courses-auth-shell {
    max-width: 520px;
    padding-top: 48px;
}

.courses-auth-shell .courses-card-body {
    padding: clamp(24px, 5vw, 36px);
}

.courses-auth-shell .wa-login-form-title,
.courses-auth-shell h1 {
    margin: 0 0 24px;
    font-size: clamp(28px, 5vw, 36px);
    line-height: 1.15;
}

.courses-auth-shell .wa-field {
    margin: 0 0 18px;
}

.courses-auth-shell .wa-field .wa-name {
    margin-bottom: 7px;
    color: var(--courses-text);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
}

.courses-auth-shell .wa-field .wa-value {
    max-width: 100%;
}

.courses-auth-shell input[type="text"],
.courses-auth-shell input[type="email"],
.courses-auth-shell input[type="password"],
.courses-auth-shell select,
.courses-auth-shell textarea {
    display: block;
    width: 100%;
    max-width: 100%;
    min-height: 44px;
    margin: 0;
    border: 1px solid var(--courses-border);
    border-radius: 6px;
    padding: 10px 12px;
    background: var(--courses-surface);
    color: var(--courses-text);
    font: inherit;
    line-height: 1.4;
}

.courses-auth-shell input:focus,
.courses-auth-shell select:focus,
.courses-auth-shell textarea:focus {
    border-color: var(--courses-accent);
    outline: 2px solid var(--courses-accent-soft);
    outline-offset: 1px;
}

.courses-auth-shell input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border: 1px solid var(--courses-accent);
    border-radius: 6px;
    padding: 10px 18px;
    background: var(--courses-accent);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    line-height: 1.2;
}

.courses-auth-shell .wa-login-forgotpassword-url {
    display: inline-block;
    margin-top: 8px;
    font-size: 14px;
}

.courses-auth-shell .wa-forgotpassword-button {
    margin-top: 18px;
}

.courses-auth-shell .wa-login-url,
.courses-auth-shell .wa-signup-url {
    margin-top: 20px;
    color: var(--courses-muted);
    font-size: 14px;
}

.courses-auth-shell .wa-error-msg,
.courses-auth-shell .wa-uncaught-errors {
    color: var(--courses-danger);
}

@media (max-width: 720px) {
    .courses-shell {
        width: min(100% - 20px, 1100px);
        padding-top: 20px;
    }

    .courses-topbar,
    .courses-header,
    .courses-course-hero,
    .courses-lesson-item {
        display: block;
    }

    .courses-actions {
        flex-wrap: wrap;
        margin-top: 12px;
    }

    .courses-lesson-nav {
        align-items: stretch;
        flex-direction: column;
    }

    .courses-lesson-nav a,
    .courses-lesson-nav span {
        max-width: none;
        text-align: left;
    }

    .courses-auth-shell {
        padding-top: 20px;
    }
}