.ilm-course-grid { display: grid; gap: 20px; }
.ilm-course-grid.ilm-cols-2 { grid-template-columns: repeat(2, 1fr); }
.ilm-course-grid.ilm-cols-3 { grid-template-columns: repeat(3, 1fr); }
.ilm-course-grid.ilm-cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .ilm-course-grid { grid-template-columns: 1fr !important; } }
.ilm-course-card { background: #fff; border: 1px solid #eaeaea; border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; }
.ilm-course-card img { width: 100%; height: 180px; object-fit: cover; display: block; }
.ilm-course-body { padding: 14px; flex: 1; display: flex; flex-direction: column; }
.ilm-course-body h3 { margin: 0 0 8px; font-size: 17px; }
.ilm-course-body p { flex: 1; color: #666; font-size: 14px; }
.ilm-course-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; }
.ilm-btn { display: inline-block; padding: 8px 14px; background: #2271b1; color: #fff; border-radius: 4px; text-decoration: none; border: none; cursor: pointer; font-size: 14px; }
.ilm-btn:hover { background: #135e96; color: #fff; }
.ilm-btn-primary { background: #2271b1; }
.ilm-progress-bar { position: relative; background: #eee; border-radius: 20px; height: 22px; overflow: hidden; margin: 8px 0; }
.ilm-progress-fill { background: #46b450; height: 100%; transition: width .3s ease; }
.ilm-progress-bar span { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); font-size: 12px; font-weight: 600; color: #222; }
.ilm-course-single { margin: 20px 0; }
.ilm-course-layout { display: grid; grid-template-columns: 320px 1fr; gap: 24px; }
@media (max-width: 900px) { .ilm-course-layout { grid-template-columns: 1fr; } }
.ilm-course-sidebar { background: #f7f7f7; padding: 16px; border-radius: 8px; }
.ilm-topic h4 { margin: 12px 0 6px; font-size: 14px; }
.ilm-lesson-list { list-style: none; padding: 0; margin: 0; }
.ilm-lesson-item { margin: 4px 0; }
.ilm-lesson-link { display: flex; justify-content: space-between; align-items: center; padding: 8px 10px; border-radius: 4px; text-decoration: none; color: #222; background: #fff; border: 1px solid #eaeaea; }
.ilm-lesson-item.is-complete .ilm-lesson-link { background: #eaf7ea; }
.ilm-lesson-link.is-locked { opacity: .55; cursor: not-allowed; }
.ilm-preview-tag { background: #ffb900; color: #222; font-size: 11px; padding: 2px 6px; border-radius: 3px; margin-left: 6px; }
.ilm-enroll-cta { background: #fff8e5; padding: 20px; border-radius: 8px; text-align: center; margin-bottom: 16px; }
.ilm-video-wrapper { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 8px; background: #000; }
.ilm-video-wrapper iframe, .ilm-video-wrapper video { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }
.ilm-dashboard { max-width: 1100px; margin: 20px auto; }
.ilm-table { width: 100%; border-collapse: collapse; background: #fff; }
.ilm-table th, .ilm-table td { padding: 10px; border-bottom: 1px solid #eee; text-align: left; }
.ilm-preview-hero { background-size: cover; background-position: center; min-height: 380px; display: flex; align-items: center; justify-content: center; border-radius: 12px; position: relative; overflow: hidden; }
.ilm-preview-overlay { background: rgba(0,0,0,.6); color: #fff; padding: 30px 40px; border-radius: 12px; text-align: center; max-width: 700px; }
.ilm-preview-overlay h1 { margin: 0 0 12px; font-size: 32px; color: #fff; }
.ilm-badge { display: inline-block; padding: 4px 10px; border-radius: 20px; background: rgba(255,255,255,.2); margin: 0 4px; font-size: 13px; }
.ilm-price-badge { background: #46b450; }
.ilm-preview-curriculum { margin-top: 30px; }
.ilm-topic-preview { background: #f7f7f7; padding: 14px 20px; border-radius: 8px; margin-bottom: 12px; }
.ilm-topic-preview h3 { margin: 0 0 8px; font-size: 16px; }
.ilm-topic-preview ul { margin: 0; padding-left: 20px; }
.ilm-topic-preview li { margin: 4px 0; display: flex; align-items: center; gap: 6px; }
/* ===== Lesson Player ===== */
.ilm-course-header { margin-bottom: 20px; }
.ilm-course-title { margin: 0 0 10px; font-size: 28px; }
.ilm-course-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.ilm-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    background: #eef2f7;
    color: #3a4a5c;
    font-size: 13px;
    font-weight: 500;
}
.ilm-price-badge { background: #d1f0d1; color: #1d6b1d; }
.ilm-badge-done { background: #d1f0d1; color: #1d6b1d; }
.ilm-badge-preview { background: #ffe9a8; color: #7a5a00; }

.ilm-course-progress-bar-wrap {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 15px 0 25px;
}
.ilm-course-progress-bar-wrap .ilm-progress-bar {
    flex: 1;
    position: relative;
    background: #e5e7eb;
    border-radius: 20px;
    height: 24px;
    overflow: hidden;
}
.ilm-progress-label {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    font-weight: 700;
    color: #222;
    z-index: 2;
}
.ilm-btn-small { padding: 5px 12px; font-size: 12px; }

/* Layout */
.ilm-course-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 24px;
    align-items: start;
}
@media (max-width: 900px) {
    .ilm-course-layout { grid-template-columns: 1fr; }
}

/* Sidebar */
.ilm-course-sidebar {
    background: #f7f8fa;
    border-radius: 10px;
    padding: 18px;
    position: sticky;
    top: 20px;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
}
.ilm-sidebar-title { margin: 0 0 15px; font-size: 17px; }
.ilm-topic { margin-bottom: 15px; }
.ilm-topic-title {
    font-size: 13px;
    text-transform: uppercase;
    color: #6b7280;
    margin: 0 0 8px;
    letter-spacing: .4px;
}
.ilm-lesson-list { list-style: none; padding: 0; margin: 0; }
.ilm-lesson-item { margin: 3px 0; }
.ilm-lesson-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    border-radius: 6px;
    text-decoration: none;
    color: #1f2937;
    background: #fff;
    border: 1px solid #e5e7eb;
    font-size: 14px;
    transition: all .15s;
}
.ilm-lesson-link:hover {
    background: #eef6ff;
    border-color: #b8daff;
    color: #1f2937;
}
.ilm-lesson-item.is-active .ilm-lesson-link {
    background: #2271b1;
    border-color: #2271b1;
    color: #fff;
}
.ilm-lesson-item.is-active .ilm-lesson-link .ilm-lesson-icon { color: #fff; }
.ilm-lesson-item.is-complete .ilm-lesson-link { background: #eaf7ea; }
.ilm-lesson-item.is-complete.is-active .ilm-lesson-link { background: #2271b1; }
.ilm-lesson-link.is-locked { opacity: .6; cursor: not-allowed; }
.ilm-lesson-icon { font-size: 16px; width: 16px; height: 16px; color: #6b7280; }
.ilm-lesson-title { flex: 1; }
.ilm-done-icon { color: #16a34a; font-size: 18px; width: 18px; height: 18px; }
.ilm-lesson-item.is-active .ilm-done-icon { color: #b3ffb3; }

/* Main content */
.ilm-lesson-content {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 24px;
    min-height: 300px;
}
.ilm-lesson-placeholder {
    text-align: center;
    padding: 60px 20px;
    color: #9ca3af;
}
.ilm-lesson-placeholder .dashicons {
    font-size: 60px;
    width: 60px;
    height: 60px;
    color: #d1d5db;
    margin-bottom: 15px;
}
.ilm-lesson-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 15px; margin-bottom: 15px; }
.ilm-lesson-heading { margin: 0; font-size: 22px; flex: 1; }
.ilm-lesson-video { margin-bottom: 20px; }
.ilm-video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    background: #000;
}
.ilm-video-wrapper iframe,
.ilm-video-wrapper video {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border: 0;
}
.ilm-lesson-body {
    line-height: 1.7;
    color: #374151;
    font-size: 15px;
}
.ilm-lesson-body img { max-width: 100%; height: auto; border-radius: 6px; }
.ilm-lesson-body h2, .ilm-lesson-body h3 { margin-top: 24px; }
.ilm-lesson-body pre { background: #1f2937; color: #f9fafb; padding: 15px; border-radius: 6px; overflow-x: auto; }
.ilm-lesson-body code { background: #f3f4f6; padding: 2px 6px; border-radius: 4px; font-size: 13px; }
.ilm-lesson-body pre code { background: transparent; padding: 0; }

.ilm-lesson-actions { margin-top: 25px; padding-top: 20px; border-top: 1px solid #e5e7eb; }
.ilm-mark-complete[disabled] { opacity: .7; cursor: default; background: #16a34a; }

.ilm-lesson-nav {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
}
.ilm-lesson-nav a {
    padding: 10px 16px;
    background: #f3f4f6;
    border-radius: 6px;
    text-decoration: none;
    color: #374151;
    font-size: 14px;
    max-width: 45%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: background .15s;
}
.ilm-lesson-nav a:hover { background: #e5e7eb; }
.ilm-lesson-nav a.ilm-nav-next { margin-left: auto; }

/* Loading */
.ilm-loading {
    text-align: center;
    padding: 50px 20px;
    color: #6b7280;
}
.ilm-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #d1d5db;
    border-top-color: #2271b1;
    border-radius: 50%;
    animation: ilm-spin 0.7s linear infinite;
    vertical-align: middle;
    margin-right: 6px;
}
@keyframes ilm-spin { to { transform: rotate(360deg); } }

.ilm-error {
    background: #fef2f2;
    color: #991b1b;
    padding: 12px 16px;
    border-radius: 6px;
    border-left: 4px solid #dc2626;
}

/* Enroll CTA */
.ilm-enroll-cta {
    background: linear-gradient(135deg, #fff8e5, #ffeaa7);
    padding: 22px;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 20px;
}
.ilm-enroll-cta h2 { margin: 0 0 8px; font-size: 20px; }
.ilm-enroll-cta p { margin: 0 0 16px; color: #6b7280; font-size: 14px; }
/* ============================================================
 * Access Error UI (locked lessons/quizzes)
 * ========================================================== */
.ilm-access-error {
    background: #fff;
    border: 2px dashed #d1d5db;
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    max-width: 520px;
    margin: 20px auto;
}

.ilm-access-error h3 {
    margin: 0 0 12px;
    font-size: 20px;
    color: #1f2937;
}

.ilm-access-error p {
    color: #6b7280;
    margin: 0 0 20px;
    font-size: 14px;
    line-height: 1.6;
}

.ilm-access-error-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

/* Sequence lock styling */
.ilm-lesson-item .ilm-lesson-icon.dashicons-lock {
    color: #9ca3af;
}

.ilm-lesson-item .ilm-lesson-icon.dashicons-clock {
    color: #d97706;
}

/* Drip badge for sequence */
.ilm-drip-badge {
    display: inline-block;
    background: #fef3c7;
    color: #92400e;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    margin-left: 6px;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    vertical-align: middle;
}

.ilm-lesson-item.is-locked .ilm-lesson-link {
    cursor: not-allowed;
    opacity: 0.75;
}