/* Videoteca v5: vista por niveles, tarjetas limpias y reproductor adaptable. */
body[data-area="videos"] {
    --video-ink: #17233d;
    --video-muted: #71809a;
    --video-line: #e0e7f2;
    --video-panel: #ffffff;
    background:
        radial-gradient(circle at 4% 4%, #dce7ff 0, transparent 25%),
        radial-gradient(circle at 96% 20%, #d9f7ef 0, transparent 24%),
        #f5f7fc;
}

body[data-area="videos"] .video-main {
    width: 100%;
    padding: 32px 16px 110px;
}

body[data-area="videos"] .video-shell {
    width: min(1200px, 100%);
}

body[data-area="videos"] .hero-videos {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
    min-height: 248px;
    padding: 34px clamp(24px, 5vw, 62px);
    border: 1px solid #ffffff2e;
    border-radius: 32px;
    background: linear-gradient(125deg, #172b5e 0%, #345bd4 56%, #168a7a 100%);
    box-shadow: 0 24px 55px #263e8130;
}

body[data-area="videos"] .hero-videos::before {
    width: 340px;
    height: 340px;
    right: 18%;
    top: -235px;
    border-color: #ffffff22;
}

body[data-area="videos"] .hero-videos::after {
    width: 190px;
    height: 190px;
    left: 42%;
    bottom: -145px;
    border-color: #ffffff24;
}

body[data-area="videos"] .hero-content {
    max-width: 700px;
}

body[data-area="videos"] .hero-badge {
    padding: 8px 13px;
    color: #e8eeff;
    background: #ffffff17;
    border-color: #ffffff2e;
}

body[data-area="videos"] .hero-videos h1 {
    max-width: 680px;
    margin-bottom: 11px;
    font-size: clamp(2rem, 5vw, 3.4rem);
}

body[data-area="videos"] .hero-videos p {
    max-width: 650px;
    color: #e9efff;
    font-size: .95rem;
}

.hero-videos-aside {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 13px;
    min-width: 206px;
    padding: 18px;
    border: 1px solid #ffffff38;
    border-radius: 23px;
    background: #ffffff16;
    box-shadow: inset 0 1px #ffffff1f;
    backdrop-filter: blur(8px);
}

.hero-videos-orbit {
    display: grid;
    place-items: center;
    width: 58px;
    height: 58px;
    color: #1b315e;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 12px 24px #081a4b36;
    font-size: 1.35rem;
}

.hero-videos-stats {
    display: grid;
    gap: 8px;
    color: #dce7ff;
    font-size: .72rem;
}

.hero-videos-stats span {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding-top: 8px;
    border-top: 1px solid #ffffff25;
}

.hero-videos-stats strong {
    color: #fff;
    font-size: 1.08rem;
}

body[data-area="videos"] .grados-panel {
    display: grid;
    grid-template-columns: minmax(220px, .7fr) minmax(0, 2fr);
    align-items: center;
    gap: 26px;
    padding: 23px;
    border: 1px solid #e1e7f1;
    border-radius: 28px;
    background: #ffffffed;
    box-shadow: 0 15px 34px #21355d0d;
}

body[data-area="videos"] .grados-title {
    margin: 0;
    text-align: left;
}

body[data-area="videos"] .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #3157d5;
    font-size: .66rem;
    font-weight: 900;
    letter-spacing: .1em;
    text-transform: uppercase;
}

body[data-area="videos"] .grados-title h2 {
    margin: 9px 0 6px;
    color: var(--video-ink);
    font-size: 1.32rem;
}

body[data-area="videos"] .grados-title p {
    max-width: 260px;
    color: var(--video-muted);
    font-size: .78rem;
    line-height: 1.5;
}

body[data-area="videos"] .grados-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 11px;
}

body[data-area="videos"] .grado-btn {
    min-height: 78px;
    padding: 11px 13px;
    background: linear-gradient(135deg, var(--grado-soft, #f7f8ff), #fff);
    border-color: #e1e7f1;
    border-radius: 18px;
}

body[data-area="videos"] .grado-btn::before {
    width: 3px;
    opacity: .9;
}

body[data-area="videos"] .grado-btn:hover,
body[data-area="videos"] .grado-btn.active {
    border-color: var(--grado-color);
    box-shadow: 0 13px 25px #21355d16;
}

body[data-area="videos"] .grado-numero {
    flex-basis: 42px;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    box-shadow: 0 7px 15px rgba(27, 42, 70, .14);
    box-shadow: 0 7px 15px color-mix(in srgb, var(--grado-color) 24%, transparent);
}

body[data-area="videos"] .grado-btn-general .grado-numero {
    font-size: 1rem;
}

body[data-area="videos"] .grado-texto strong {
    font-size: .78rem;
}

body[data-area="videos"] .grado-texto small {
    margin-top: 4px;
    font-size: .61rem;
}

body[data-area="videos"] .grado-count {
    display: grid;
    place-items: center;
    min-width: 23px;
    height: 23px;
    padding: 0 5px;
    border-radius: 8px;
    background: #ffffffbd;
}

body[data-area="videos"] .section-bar {
    align-items: flex-end;
    margin: 10px 3px 16px;
}

body[data-area="videos"] .section-bar h2 {
    margin-top: 7px;
    color: var(--video-ink);
    font-size: 1.48rem;
}

body[data-area="videos"] .section-bar p {
    color: var(--video-muted);
}

body[data-area="videos"] .volver-grados {
    border: 1px solid #d7e0fa;
    border-radius: 11px;
    background: #eef3ff;
}

body[data-area="videos"] .videos-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

body[data-area="videos"] .video-card {
    border-color: #e0e7f2;
    border-radius: 25px;
    box-shadow: 0 13px 30px #22365e0d;
}

body[data-area="videos"] .video-card:hover {
    transform: translateY(-7px);
    box-shadow: 0 23px 42px #22365e1a;
}

body[data-area="videos"] .video-cover {
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, #152544, #3157d5);
}

body[data-area="videos"] .video-number {
    top: 13px;
    left: 13px;
    width: 43px;
    height: 43px;
    border-width: 3px;
    box-shadow: 0 9px 20px #1b3eaa47;
}

body[data-area="videos"] .video-cover-label {
    top: 15px;
    left: 66px;
    padding: 7px 10px;
    background: #13274dd9;
}

body[data-area="videos"] .video-cover-quality {
    top: 15px;
    right: 14px;
    padding: 7px 10px;
}

.video-cover-grade {
    position: absolute;
    z-index: 2;
    right: 14px;
    bottom: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    max-width: calc(100% - 28px);
    overflow: hidden;
    padding: 7px 10px;
    color: var(--grado-color, #3157d5);
    background: #fffffff2;
    border-radius: 999px;
    box-shadow: 0 6px 13px #0813262c;
    font-size: .62rem;
    font-weight: 900;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.video-cover-grade i {
    flex: 0 0 auto;
}

body[data-area="videos"] .video-play-button {
    width: 68px;
    height: 68px;
    background: linear-gradient(135deg, #ee5a80, #694dd5);
    box-shadow: 0 14px 28px #101c4c66;
}

body[data-area="videos"] .video-body {
    padding: 19px;
}

body[data-area="videos"] .video-chip {
    color: #3157d5;
    background: #eef3ff;
}

body[data-area="videos"] .video-body h3 {
    margin-bottom: 8px;
    color: var(--video-ink);
    font-size: 1.08rem;
}

body[data-area="videos"] .video-description {
    color: var(--video-muted);
}

body[data-area="videos"] .video-actions {
    align-items: stretch;
}

body[data-area="videos"] .btn-video {
    flex: 1 1 145px;
    min-height: 42px;
    border-radius: 12px;
}

body[data-area="videos"] .video-player-panel {
    padding: 22px;
    border: 1px solid #bbcdf3;
    border-radius: 28px;
    background: linear-gradient(145deg, #fff, #edf3ff);
    box-shadow: 0 18px 38px #29447b18;
}

body[data-area="videos"] .video-player-head h2 {
    color: var(--video-ink);
}

body[data-area="videos"] .video-player-stage {
    width: min(100%, 940px);
    aspect-ratio: 16 / 9;
    min-height: 0;
    border-radius: 19px;
    background: #081326;
}

body[data-area="videos"] .video-player-stage.is-horizontal {
    aspect-ratio: 16 / 9;
}

body[data-area="videos"] .video-player-stage.is-vertical {
    width: min(100%, 420px);
    aspect-ratio: 9 / 16;
}

body[data-area="videos"] .video-player-stage iframe,
body[data-area="videos"] .video-player-stage video {
    object-fit: contain;
}

body[data-area="videos"] .video-player-tools {
    width: min(100%, 940px);
}

body[data-area="videos"] .video-player-tools span {
    padding: 7px 10px;
    border-radius: 999px;
    color: #3157d5;
    background: #e8efff;
    font-weight: 800;
}

body[data-area="videos"] .empty-state {
    border-color: #dfe6f1;
    border-radius: 25px;
}

@media (min-width: 992px) and (max-width: 1120px) {
    body[data-area="videos"] .videos-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 991.98px) {
    body[data-area="videos"] .grados-panel {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    body[data-area="videos"] .grados-title p {
        max-width: 560px;
    }

    body[data-area="videos"] .videos-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 767.98px) {
    body[data-area="videos"] .video-main {
        padding: 20px 12px 120px;
    }

    body[data-area="videos"] .hero-videos {
        grid-template-columns: 1fr;
        gap: 18px;
        min-height: 0;
        padding: 28px 22px;
        border-radius: 25px;
    }

    body[data-area="videos"] .hero-videos h1 {
        font-size: clamp(2rem, 11vw, 3rem);
    }

    body[data-area="videos"] .hero-videos p {
        font-size: .87rem;
        line-height: 1.55;
    }

    .hero-videos-aside {
        grid-template-columns: auto minmax(0, 1fr);
        align-items: center;
        min-width: 0;
    }

    body[data-area="videos"] .grados-panel {
        padding: 18px;
        border-radius: 23px;
    }

    body[data-area="videos"] .grados-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 9px;
    }

    body[data-area="videos"] .grado-btn {
        min-height: 68px;
        padding: 9px 10px;
    }

    body[data-area="videos"] .grado-numero {
        flex-basis: 37px;
        width: 37px;
        height: 37px;
        border-radius: 12px;
    }

    body[data-area="videos"] .grado-texto strong {
        font-size: .7rem;
    }

    body[data-area="videos"] .grado-texto small {
        font-size: .56rem;
    }

    body[data-area="videos"] .section-bar {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
        margin-inline: 2px;
    }

    body[data-area="videos"] .section-bar h2 {
        font-size: 1.28rem;
    }

    body[data-area="videos"] .videos-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    body[data-area="videos"] .video-player-panel {
        padding: 17px;
        border-radius: 22px;
    }

    body[data-area="videos"] .video-player-stage.is-vertical {
        width: min(100%, 330px);
    }
}

@media (max-width: 380px) {
    body[data-area="videos"] .grados-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (prefers-reduced-motion: reduce) {
    body[data-area="videos"] .video-card:hover,
    body[data-area="videos"] .grado-btn:hover {
        transform: none;
    }
}

/* v5.1: tarjetas de grado más claras y fechas de publicación visibles. */
body[data-area="videos"] .grado-btn {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    min-height: 88px;
    padding: 12px 14px;
    border-radius: 21px;
    box-shadow: inset 0 0 0 1px #fff, 0 8px 20px #21355d08;
}

body[data-area="videos"] .grado-btn::after {
    content: "";
    position: absolute;
    z-index: 0;
    right: -22px;
    bottom: -26px;
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: var(--grado-color);
    opacity: .1;
    pointer-events: none;
}

body[data-area="videos"] .grado-btn > * {
    position: relative;
    z-index: 1;
}

body[data-area="videos"] .grado-btn.active {
    color: var(--video-ink);
    background: linear-gradient(145deg, var(--grado-soft), #fff);
    box-shadow: 0 16px 30px #21355d1b, inset 0 0 0 2px var(--grado-color);
}

body[data-area="videos"] .grado-btn-general {
    color: #fff;
    background: linear-gradient(135deg, #182b55, #34558a);
    border-color: #294778;
}

body[data-area="videos"] .grado-btn-general .grado-numero {
    color: #1b315e;
    background: #fff;
}

body[data-area="videos"] .grado-btn-general .grado-texto strong,
body[data-area="videos"] .grado-btn-general .grado-texto small {
    color: #fff;
}

body[data-area="videos"] .grado-btn-general .grado-count {
    color: #1b315e;
    background: #fff;
}

body[data-area="videos"] .grado-btn-general:hover,
body[data-area="videos"] .grado-btn-general.active {
    color: #fff;
    border-color: #1b315e;
    box-shadow: 0 16px 30px #21355d2e, inset 0 0 0 2px #fff6;
}

.video-publication-date {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 7px 0 13px;
    padding: 9px 11px;
    border: 1px solid #e2e8f5;
    border-radius: 14px;
    background: #f8faff;
    color: #3157d5;
}

.video-publication-date > i {
    display: grid;
    place-items: center;
    width: 31px;
    height: 31px;
    flex: 0 0 auto;
    border-radius: 10px;
    color: #fff;
    background: #3157d5;
}

.video-publication-date span {
    display: flex;
    align-items: baseline;
    gap: 7px;
    flex-wrap: wrap;
}

.video-publication-date small {
    width: 100%;
    color: #70809a;
    font-size: .61rem;
    font-weight: 900;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.video-publication-date strong {
    color: #17233d;
    font-size: .92rem;
    font-weight: 900;
}

.video-publication-date em {
    color: #71809a;
    font-size: .72rem;
    font-style: normal;
}

.empty-state-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-top: 10px;
    padding: 9px 13px;
    border-radius: 11px;
    color: #3157d5;
    background: #eef3ff;
    font-size: .76rem;
    font-weight: 900;
    text-decoration: none;
}

.btn-assessment {
    color: #6d3ee8 !important;
    background: linear-gradient(135deg, #f2edff, #e9f5ff) !important;
    border: 1px solid #d6cafa !important;
}

.btn-assessment:hover {
    color: #fff !important;
    background: linear-gradient(135deg, #6d3ee8, #2563eb) !important;
    border-color: transparent !important;
}

.btn-assessment b {
    margin-left: auto;
    padding: 3px 6px;
    border-radius: 999px;
    color: #996300;
    background: #fff0b9;
    font-size: .65rem;
}

.btn-assessment:hover b {
    color: #5b3b00;
}

.empty-state-link:hover {
    color: #1b3fae;
    text-decoration: none;
}

@media (max-width: 767.98px) {
    body[data-area="videos"] .grado-btn {
        min-height: 76px;
        padding: 10px;
    }

    body[data-area="videos"] .grado-count {
        min-width: 28px;
        height: 28px;
        border-radius: 10px;
    }
}