.aiac-lms {
    --aiac-text: #111827;
    --aiac-muted: #667085;
    --aiac-border: #d8dee8;
    --aiac-panel: #ffffff;
    --aiac-soft: #f6f8fb;
    --aiac-primary: #0f766e;
    --aiac-primary-dark: #115e59;
    --aiac-accent: #1d4ed8;
    color: var(--aiac-text);
}

.aiac-lms *,
.aiac-lms *::before,
.aiac-lms *::after {
    box-sizing: border-box;
}

.aiac-lms-notice {
    margin: 0 0 18px;
    padding: 12px 14px;
    border: 1px solid #a7f3d0;
    border-radius: 8px;
    background: #ecfdf5;
    color: #065f46;
    font-weight: 600;
}

.aiac-course-search {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) minmax(160px, 240px) auto;
    gap: 10px;
    margin: 0 0 22px;
}

.aiac-course-search input,
.aiac-course-search select,
.aiac-lms-form input,
.aiac-lms-form textarea,
.aiac-lms-form select {
    width: 100%;
    min-height: 42px;
    border: 1px solid var(--aiac-border);
    border-radius: 8px;
    padding: 9px 11px;
    background: #fff;
    color: var(--aiac-text);
}

.aiac-course-search button,
.aiac-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 16px;
    border: 0;
    border-radius: 8px;
    background: var(--aiac-primary);
    color: #fff;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.aiac-course-search button:hover,
.aiac-button:hover {
    background: var(--aiac-primary-dark);
    color: #fff;
}

.aiac-button.aiac-secondary {
    background: #334155;
}

.aiac-course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.aiac-course-card {
    overflow: hidden;
    border: 1px solid var(--aiac-border);
    border-radius: 8px;
    background: var(--aiac-panel);
}

.aiac-course-image {
    display: block;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, #0f766e, #1d4ed8);
    color: #fff;
    text-decoration: none;
}

.aiac-course-image img,
.aiac-course-detail-media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.aiac-course-image span,
.aiac-course-placeholder {
    display: grid;
    width: 100%;
    height: 100%;
    place-items: center;
    font-size: 48px;
    font-weight: 800;
}

.aiac-course-card-body {
    padding: 16px;
}

.aiac-course-card h3,
.aiac-course-card h4 {
    margin: 10px 0 8px;
    font-size: 20px;
    line-height: 1.25;
}

.aiac-course-card p {
    min-height: 48px;
    color: var(--aiac-muted);
}

.aiac-badge {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 4px 9px;
    border-radius: 999px;
    background: #e0f2fe;
    color: #075985;
    font-size: 13px;
    font-weight: 700;
}

.aiac-course-detail {
    display: grid;
    grid-template-columns: minmax(240px, 420px) 1fr;
    gap: 24px;
    align-items: stretch;
    margin: 0 0 24px;
}

.aiac-course-detail-media {
    overflow: hidden;
    min-height: 260px;
    border-radius: 8px;
    background: linear-gradient(135deg, #0f766e, #1d4ed8);
    color: #fff;
}

.aiac-course-detail-body h2 {
    margin: 10px 0;
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.1;
}

.aiac-course-short {
    color: var(--aiac-muted);
    font-size: 18px;
}

.aiac-course-sections,
.aiac-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.aiac-course-sections,
.aiac-modules-preview,
.aiac-enroll-panel,
.aiac-dashboard-section,
.aiac-player-header,
.aiac-certificate-ready {
    margin: 0 0 20px;
    padding: 18px;
    border: 1px solid var(--aiac-border);
    border-radius: 8px;
    background: var(--aiac-panel);
}

.aiac-module-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}

.aiac-module-preview {
    padding: 14px;
    border: 1px solid var(--aiac-border);
    border-radius: 8px;
    background: var(--aiac-soft);
}

.aiac-module-preview strong,
.aiac-module-preview span {
    display: block;
}

.aiac-module-preview span {
    margin-top: 4px;
    color: var(--aiac-muted);
}

.aiac-lms-form label {
    display: block;
    margin: 0 0 14px;
    font-weight: 700;
}

.aiac-lms-form textarea {
    min-height: 110px;
}

.aiac-dashboard h2 {
    margin-top: 0;
}

.aiac-progress-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin: 8px 0 6px;
    color: var(--aiac-muted);
}

.aiac-progress {
    overflow: hidden;
    height: 10px;
    border-radius: 999px;
    background: #e5e7eb;
}

.aiac-progress span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--aiac-primary), var(--aiac-accent));
}

.aiac-table {
    width: 100%;
    border-collapse: collapse;
    overflow: hidden;
    border: 1px solid var(--aiac-border);
    border-radius: 8px;
}

.aiac-table th,
.aiac-table td {
    padding: 11px;
    border-bottom: 1px solid var(--aiac-border);
    text-align: left;
    vertical-align: top;
}

.aiac-table th {
    background: var(--aiac-soft);
}

.aiac-course-player {
    display: grid;
    grid-template-columns: minmax(220px, 300px) 1fr;
    gap: 20px;
}

.aiac-player-nav,
.aiac-player-content {
    border: 1px solid var(--aiac-border);
    border-radius: 8px;
    background: var(--aiac-panel);
}

.aiac-player-nav {
    overflow: hidden;
}

.aiac-player-content {
    padding: 20px;
}

.aiac-player-module {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 12px 14px;
    background: var(--aiac-soft);
    border-bottom: 1px solid var(--aiac-border);
}

.aiac-player-link {
    display: block;
    padding: 11px 14px;
    border-bottom: 1px solid var(--aiac-border);
    color: var(--aiac-text);
    text-decoration: none;
}

.aiac-player-link:hover,
.aiac-player-link.is-active {
    background: #ecfeff;
    color: #155e75;
}

.aiac-video {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    margin: 0 0 18px;
    border-radius: 8px;
    background: #111827;
}

.aiac-video iframe,
.aiac-mp4 {
    width: 100%;
    height: 100%;
    border: 0;
}

.aiac-mp4 {
    max-height: 540px;
    margin-bottom: 18px;
    background: #111827;
}

.aiac-completed {
    color: #166534;
    font-weight: 700;
}

.aiac-quiz fieldset {
    margin: 0 0 16px;
    padding: 14px;
    border: 1px solid var(--aiac-border);
    border-radius: 8px;
}

.aiac-quiz legend {
    padding: 0 6px;
    font-weight: 800;
}

.aiac-radio {
    display: block;
    margin: 10px 0;
}

.aiac-certificate-box {
    margin: 0 0 14px;
    padding: 14px;
    border: 1px solid var(--aiac-border);
    border-radius: 8px;
    background: var(--aiac-soft);
}

.aiac-certificate-box summary {
    cursor: pointer;
    font-weight: 800;
}

@media (max-width: 820px) {
    .aiac-course-search,
    .aiac-course-detail,
    .aiac-course-sections,
    .aiac-form-grid,
    .aiac-course-player {
        grid-template-columns: 1fr;
    }

    .aiac-player-nav {
        order: 2;
    }
}