/* =========================================================
    LOVABLE COURSE GRID EFFECTS
    ======================================================== */
.smu-course-card {
    transition:
        transform .45s cubic-bezier(.22,1,.36,1) .08s,
        box-shadow .45s cubic-bezier(.22,1,.36,1) .08s,
        border-color .3s ease;
}

.smu-course-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--smu-shadow-card-hover);
}

.smu-course-card img {
    transition: transform .7s cubic-bezier(.22,1,.36,1) .08s;
}

.smu-course-card:hover img {
    transform: scale(1.055);
}
/* =========================================================
   COURSE GRID ULTRA
========================================================= */

.smu-course-section{
    padding: 72px 0 110px;
}

.smu-course-section .smu-container{
    width: min(100% - 32px, 1120px);
}

.smu-course-filters{
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 34px;
}

.smu-course-filters button{
    min-height: 34px;
    padding: 0 16px;
    border: 1px solid var(--smu-color-border);
    border-radius: 12px;
    background: #fff;
    color: var(--smu-color-text);
    font-family: var(--smu-font-body);
    font-size: .86rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--smu-shadow-card);
}

.smu-course-filters button.is-active{
    border-color: transparent;
    background: var(--smu-gradient-primary);
    color: #fff;
    box-shadow: var(--smu-shadow-glow);
}

.smu-course-grid{
    display: grid;
    gap: 24px;
}

.smu-course-grid.smu-course-cols-2{
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.smu-course-grid.smu-course-cols-3{
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.smu-course-grid.smu-course-cols-4{
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.smu-course-card-skeleton {
    border-radius: 12px;
    overflow: hidden;
    background: #f0f0f0;
}

.smu-skeleton-media {
    height: 180px;
    background: linear-gradient(90deg, #e8e8e8 25%, #f5f5f5 50%, #e8e8e8 75%);
    background-size: 200% 100%;
    animation: smu-shimmer 1.4s infinite;
}

.smu-skeleton-content {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.smu-skeleton-line {
    height: 14px;
    border-radius: 4px;
    background: linear-gradient(90deg, #e8e8e8 25%, #f5f5f5 50%, #e8e8e8 75%);
    background-size: 200% 100%;
    animation: smu-shimmer 1.4s infinite;
    width: 100%;
}

.smu-skeleton-line--short  { width: 40%; }
.smu-skeleton-line--medium { width: 65%; }

@keyframes smu-shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.smu-course-card{
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--smu-color-border);
    border-radius: 22px;
    background: var(--smu-color-surface);
    color: var(--smu-color-text);
    text-decoration: none !important;
    box-shadow: var(--smu-shadow-card);
}

.smu-course-card:hover{
    color: var(--smu-color-text);
    text-decoration: none !important;
}

.smu-course-media{
    position: relative;
    height: 160px;
    overflow: hidden;
    background: var(--smu-color-surface-soft);
}

.smu-course-media img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.smu-course-image-placeholder{
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
    color: var(--smu-color-muted);
    font-size: .85rem;
}

.smu-course-media-gradient{
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(255,255,255,.82),
        rgba(255,255,255,.10) 45%,
        rgba(255,255,255,0)
    );
    pointer-events: none;
}

.smu-course-type,
.smu-course-new,
.smu-course-coming,
.smu-course-duration{
    position: absolute;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    min-height: 26px;
    padding: 0 11px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.smu-course-type{
    top: 12px;
    left: 12px;
    background: rgba(255,255,255,.9);
    color: var(--smu-color-text);
}

.smu-course-new{
    top: 12px;
    right: 12px;
    background: var(--smu-color-primary);
    color: #fff;
}

.smu-course-coming{
    top: 12px;
    right: 12px;
    background: rgba(15,23,42,.84);
    color: #fff;
}

.smu-course-duration{
    right: 12px;
    bottom: 12px;
    background: rgba(255,255,255,.92);
    color: var(--smu-color-text);
    font-weight: 600;
}

.smu-course-content{
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 12px;
    padding: 22px;
}

.smu-course-category{
    color: var(--smu-color-muted);
    font-size: .78rem;
    font-weight: 500;
}

.smu-course-content h3{
    margin: 0;
    font-family: var(--smu-font-heading);
    color: var(--smu-color-text);
    font-size: 1rem;
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.smu-course-instructor{
    margin: 0;
    color: var(--smu-color-muted);
    font-size: .8rem;
    line-height: 1.4;
}

.smu-course-tags{
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.smu-course-tags span{
    display: inline-flex;
    align-items: center;
    min-height: 22px;
    padding: 0 9px;
    border-radius: 999px;
    background: var(--smu-color-surface-soft);
    color: var(--smu-color-text);
    font-size: 10px;
    font-weight: 700;
}

.smu-course-meta{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid color-mix(in oklch, var(--smu-color-border) 65%, transparent);
    color: var(--smu-color-muted);
    font-size: .78rem;
}

.smu-course-rating{
    color: var(--smu-color-text);
}

.smu-course-rating::first-letter{
    color: #f5b301;
}

.smu-course-students{
    color: var(--smu-color-muted);
}

.smu-course-card.is-coming-soon img{
    filter: grayscale(1);
}

.smu-course-rating,
.smu-course-students {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.smu-course-rating svg,
.smu-course-students svg {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
}

.smu-course-rating svg {
    color: #f5b301;
    fill: #f5b301;
    stroke: #f5b301;
}

.smu-course-students svg {
    color: var(--smu-color-muted);
}
.smu-course-meta.is-disabled {
    opacity: 0.45;
}

.smu-course-meta.is-disabled svg {
    color: #9ca3af;
    fill: none;
    stroke: #9ca3af;
}

.smu-course-meta.is-disabled strong,
.smu-course-meta.is-disabled span {
    color: #9ca3af;
}

.smu-course-meta.is-disabled {
    opacity: .42;
}

.smu-course-meta.is-disabled .smu-course-rating svg,
.smu-course-meta.is-disabled .smu-course-students svg {
    color: var(--smu-color-muted);
    fill: none;
}

.smu-course-meta.is-disabled strong,
.smu-course-meta.is-disabled .smu-course-students {
    color: var(--smu-color-muted);
}

/* Filtrado de cursos en grid con JS y CSS */
.smu-course-card.is-leaving {
    opacity: 0;
    transform: translateY(10px) scale(.985);
    transition:
        opacity .18s ease,
        transform .18s ease;
}

.smu-course-card.is-entering {
    animation: smuCourseEnter .46s cubic-bezier(.22,1,.36,1) both;
    animation-delay: var(--smu-course-delay, 0ms);
}

.smu-course-duration svg {
    width: 13px;
    height: 13px;
    flex-shrink: 0;
}

.smu-course-loadmore-wrap {
    display: flex;
    justify-content: center;
    margin-top: 42px;
}

.smu-course-loadmore {
    min-height: 44px;
    padding: 0 28px;
    border: 0;
    border-radius: 14px;
    background: var(--smu-gradient-primary);
    color: #fff;
    font-family: var(--smu-font-body);
    font-size: .92rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: var(--smu-shadow-glow);
    transition: transform .2s ease, filter .2s ease;
}

.smu-course-loadmore:hover {
    transform: translateY(-1px);
    filter: brightness(.98);
}

.smu-course-loadmore[hidden],
.smu-course-empty[hidden] {
    display: none !important;
}

.smu-course-empty {
    margin-top: 34px;
    padding: 28px;
    border: 1px solid var(--smu-color-border);
    border-radius: 20px;
    background: rgba(255,255,255,.72);
    color: var(--smu-color-muted);
    text-align: center;
    font-size: .96rem;
    box-shadow: var(--smu-shadow-card);
}

/* =========================================================
   COURSE GRID LOADER - MODAL UX
========================================================= */

.smu-course-section {
    position: relative;
}

.smu-course-loader {
    position: fixed;
    left: 50%;
    top: 50%;
    z-index: 10000;
    width: min(90vw, 420px);
    min-height: 190px;
    transform: translate(-50%, -50%) scale(.96);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 38px 34px;
    border-radius: 26px;
    background: rgba(255, 255, 255, .96);
    border: 1px solid rgba(15, 23, 42, .10);
    box-shadow: 0 28px 90px rgba(15, 23, 42, .24);
    text-align: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .18s ease, visibility .18s ease, transform .22s cubic-bezier(.22, 1, .36, 1);
}

.smu-course-loader::before {
    content: "";
    width: 54px;
    height: 54px;
    margin-bottom: 14px;
    border-radius: 999px;
    border: 6px solid rgba(15, 23, 42, .10);
    border-top-color: var(--smu-color-primary);
    animation: smuCourseLoaderSpin .82s linear infinite;
}

.smu-course-loader strong {
    color: var(--smu-color-text);
    font-size: 1rem;
    font-weight: 800;
}

.smu-course-loader em {
    color: var(--smu-color-muted);
    font-size: .92rem;
    font-style: normal;
}

.smu-course-section.is-loading::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(15, 23, 42, .46);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.smu-course-section.is-loading .smu-course-loader {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.smu-course-section.is-loading .smu-course-grid {
    opacity: .45;
}

.smu-course-section.is-loading .smu-course-filters {
    pointer-events: none;
}

@keyframes smuCourseLoaderSpin {
    to {
        transform: rotate(360deg);
    }
}
/* end loader ajax */

@keyframes smuCourseEnter {
    from {
        opacity: 0;
        transform: translateY(18px) scale(.985);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 1100px){
    .smu-course-grid.smu-course-cols-4,
    .smu-course-grid.smu-course-cols-3{
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 680px){
    .smu-course-section{
        padding: 56px 0 80px;
    }

    .smu-course-grid,
    .smu-course-grid.smu-course-cols-2,
    .smu-course-grid.smu-course-cols-3,
    .smu-course-grid.smu-course-cols-4{
        grid-template-columns: 1fr;
    }

    .smu-course-media{
        height: 190px;
    }
}