.lms-app .site-main {
    background: #f4f6f8;
}

.lms-kicker {
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-royal);
}

.lms-home,
.lms-catalog {
    max-width: 76rem;
    margin: 0 auto;
    padding: 2rem 1rem 4rem;
}

.lms-home__hero,
.lms-catalog__hero {
    margin-bottom: 1.5rem;
}

.lms-home__hero h1,
.lms-catalog__hero h1,
.course-detail h1 {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 800;
    color: var(--color-steel);
}

.lms-btn,
.lms-btn--ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border-radius: 999px;
    padding: 0.7rem 1.1rem;
    font-weight: 800;
    font-size: 0.88rem;
    text-decoration: none;
    border: 0;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.lms-btn {
    background: linear-gradient(90deg, var(--color-royal), var(--color-magenta));
    color: #fff;
    box-shadow: 0 8px 22px rgba(192, 132, 252, 0.28);
}

.lms-btn:hover {
    box-shadow: 0 12px 26px rgba(94, 234, 212, 0.32);
}

.lms-btn--ghost {
    background: #fff;
    color: var(--color-steel);
    border: 1px solid #d5dce3;
}

.lms-btn--tiny {
    padding: 0.35rem 0.7rem;
    font-size: 0.75rem;
}

.lms-catalog__layout {
    display: grid;
    gap: 1.25rem;
}

.lms-filters {
    background: #fff;
    border: 1px solid #e6ebf0;
    border-radius: 1.2rem;
    padding: 1rem;
}

.course-grid.is-loading {
    opacity: 1;
    pointer-events: none;
}

.sk-card {
    background: #fff;
    border: 1px solid #e6ebf0;
    border-radius: 1.2rem;
    overflow: hidden;
    padding: 0 0 1rem;
}

.sk {
    display: block;
    background: linear-gradient(90deg, #e8ecef 25%, #f7f9fb 40%, #e8ecef 55%);
    background-size: 400% 100%;
    animation: sk 1.15s ease infinite;
    border-radius: 0.7rem;
}

.sk-cover { height: 140px; border-radius: 0; }
.sk-line { height: 0.8rem; margin: 0.9rem 1rem 0; }
.sk-line--short { width: 45%; }

@keyframes sk {
    0% { background-position: 100% 0; }
    100% { background-position: 0 0; }
}

html[dir="rtl"] .sk { animation-direction: reverse; }

.lms-filters fieldset {
    border: 0;
    margin: 0 0 1rem;
    padding: 0;
}

.lms-filters legend {
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: var(--color-steel);
}

.lms-filters label {
    display: flex;
    gap: 0.45rem;
    margin: 0.28rem 0;
    font-size: 0.9rem;
}

.course-grid {
    display: grid;
    gap: 1rem;
}

.course-card {
    background: #fff;
    border: 1px solid #e6ebf0;
    border-radius: 1.2rem;
    overflow: hidden;
    box-shadow: 0 10px 24px rgba(44, 62, 80, 0.05);
}

.course-card__media {
    display: block;
    position: relative;
}

.course-card__cover {
    display: block;
    height: 140px;
    background: linear-gradient(135deg, var(--color-steel), var(--color-royal));
}

.course-card__cover--languages {
    background: linear-gradient(135deg, #1f6f8b, var(--color-royal));
}

.course-card__cover--programming {
    background:
        repeating-linear-gradient(-20deg, rgba(255,255,255,0.08) 0 8px, transparent 8px 16px),
        linear-gradient(135deg, #1c2833, var(--color-royal));
}

.course-card__cover--artificial-intelligence {
    background:
        radial-gradient(circle at 70% 30%, rgba(232, 218, 239, 0.45), transparent 40%),
        linear-gradient(135deg, #3b1c48, var(--color-steel));
}

.course-card__badges {
    position: absolute;
    inset: 0.7rem auto auto 0.7rem;
    display: flex;
    gap: 0.4rem;
}

html[dir="rtl"] .course-card__badges {
    inset: 0.7rem 0.7rem auto auto;
}

.badge-glow {
    border-radius: 999px;
    padding: 0.2rem 0.55rem;
    font-size: 0.68rem;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 0 16px rgba(94, 234, 212, 0.45);
}

.badge-ai { background: linear-gradient(90deg, var(--color-royal), var(--color-magenta)); }
.badge-code { background: linear-gradient(90deg, var(--color-steel), #1a9b9a); }
.badge-lang { background: var(--color-bronze); }

.course-card__body { padding: 1rem; }
.course-card__body h3 { font-weight: 800; font-size: 1.05rem; }
.course-card__body h3 a { color: var(--color-steel); text-decoration: none; }
.course-card__meta,
.course-card__instructor,
.progress-label { color: #5d6d7e; font-size: 0.82rem; }
.course-card__stats { display: flex; justify-content: space-between; margin-top: 0.7rem; font-weight: 700; }
.course-card__price { color: var(--color-royal); }

.progress-track {
    height: 0.45rem;
    background: #e8ecef;
    border-radius: 999px;
    overflow: hidden;
    margin-top: 0.7rem;
}

.progress-track span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--color-steel), var(--color-royal));
}

.lms-empty,
.lms-count { color: #5d6d7e; margin-bottom: 0.8rem; }

.course-detail { max-width: 76rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
.course-detail__hero,
.course-detail__grid { display: grid; gap: 1.5rem; }
.course-detail__meta { display: flex; gap: 1rem; margin: 0.8rem 0 1.2rem; color: #5d6d7e; }
.course-detail__panel,
.review-card { background: #fff; border-radius: 1.2rem; padding: 1rem; border: 1px solid #e6ebf0; }
.course-detail__cover { height: 180px; border-radius: 1rem; }
.instructor-bio { color: #5d6d7e; line-height: 1.7; }
.accordion details { background: #fff; border: 1px solid #e6ebf0; border-radius: 1rem; margin-bottom: 0.6rem; padding: 0.4rem 0.9rem; overflow: hidden; }
.accordion summary { cursor: pointer; font-weight: 800; padding: 0.6rem 0; list-style: none; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: '+'; float: inline-end; color: var(--color-royal); }
.accordion details[open] summary::after { content: '–'; }
.accordion details[open] ul { animation: acc-in 0.28s ease; }
.accordion li { display: flex; justify-content: space-between; gap: 1rem; padding: 0.45rem 0; border-top: 1px solid #eef2f5; font-size: 0.92rem; }
@keyframes acc-in {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: none; }
}

.video-modal { position: fixed; inset: 0; background: rgba(15, 23, 32, 0.72); display: grid; place-items: center; z-index: 80; }
.video-modal[hidden] { display: none !important; }
.video-modal__box { width: min(900px, 92vw); position: relative; }
.video-modal__close { position: absolute; top: -2rem; inset-inline-end: 0; background: transparent; color: #fff; border: 0; font-size: 2rem; cursor: pointer; }
.video-frame { position: relative; padding-top: 56.25%; background: #111; border-radius: 1rem; overflow: hidden; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.site-main--classroom { padding-top: 4.5rem; }
.classroom { display: grid; min-height: calc(100vh - 4.5rem); background: #0f1720; color: #fff; }
.classroom__main { padding: 1rem; }
.classroom__top { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; margin-bottom: 1rem; }
.classroom__top a { color: #ead9f1; text-decoration: none; font-weight: 700; }
.progress-track--wide { flex: 1; min-width: 8rem; background: rgba(255,255,255,0.12); }
.classroom__side { background: #151d26; padding: 1rem; overflow: auto; }
.side-section { font-size: 0.75rem; opacity: 0.7; margin: 0.8rem 0 0.3rem; }
.side-lesson { display: flex; gap: 0.5rem; color: #d5dce3; text-decoration: none; padding: 0.45rem 0.4rem; border-radius: 0.6rem; font-size: 0.88rem; }
.side-lesson.is-active { background: rgba(91, 44, 111, 0.45); color: #fff; }
.side-lesson.is-done { color: #ead9f1; }
.lesson-article, .quiz-gate { background: #fff; color: var(--color-steel); border-radius: 1rem; padding: 1.5rem; }
.lesson-copy { line-height: 1.9; }
.classroom__actions { margin-top: 1rem; }
.done-pill { background: rgba(91, 44, 111, 0.35); border-radius: 999px; padding: 0.4rem 0.8rem; }

.quiz-shell { max-width: 48rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
.quiz-timer { font-size: 1.4rem; font-weight: 800; color: var(--color-royal); }
.quiz-q { background: #fff; border: 1px solid #e6ebf0; border-radius: 1rem; padding: 1rem; margin: 0.8rem 0; }
.quiz-q label { display: flex; gap: 0.5rem; margin: 0.4rem 0; }
.quiz-result { margin-top: 1rem; padding: 1rem; border-radius: 1rem; background: #fff; }
.quiz-result.is-pass { border: 1px solid var(--color-royal); background: #f6eef9; }
.quiz-result.is-fail { border: 1px solid #e74c3c; background: #fdecea; }

.certificate { max-width: 44rem; margin: 0 auto; padding: 3rem 1rem; text-align: center; }
.certificate__sheet { border: 2px solid var(--color-royal); border-radius: 1.4rem; padding: 3rem 1.5rem; background: linear-gradient(180deg, #fff, #f6eef9); }
.certificate__name { font-size: 2rem; font-weight: 800; color: var(--color-steel); }

@media (max-width: 640px) {
    html[dir="rtl"] body,
    body.font-almarai {
        font-size: 16px;
        line-height: 1.8;
    }

    .lms-catalog__hero h1,
    .course-detail h1 {
        font-size: 1.55rem;
        line-height: 1.45;
    }
}

@media (min-width: 900px) {
    .lms-catalog__layout { grid-template-columns: 240px 1fr; }
    .lms-filters { position: sticky; top: 5.5rem; }
    .course-grid { grid-template-columns: repeat(3, 1fr); }
    .course-detail__hero,
    .course-detail__grid { grid-template-columns: 1.4fr 0.8fr; }
    .classroom { grid-template-columns: 1fr 300px; }
}