/* =========================================================
   VIDEO LECTURES PAGE
========================================================= */


/* =========================================================
   HERO
========================================================= */

.lectures-hero {

    position: relative;

    min-height: 100vh;

    padding:
        145px 0
        90px;

    display: flex;

    align-items: center;

    overflow: hidden;

    color: #ffffff;

    background:

        radial-gradient(
            circle at 76% 42%,
            rgba(255,255,255,.07),
            transparent 28%
        ),

        radial-gradient(
            circle at 15% 82%,
            rgba(70,53,42,.08),
            transparent 30%
        ),

        #080808;

}


.lectures-grid-background {

    position: absolute;

    inset: 0;

    opacity: .14;

    background-image:

        linear-gradient(
            rgba(255,255,255,.04) 1px,
            transparent 1px
        ),

        linear-gradient(
            90deg,
            rgba(255,255,255,.04) 1px,
            transparent 1px
        );

    background-size:
        57px 57px;

    mask-image:
        linear-gradient(
            to bottom,
            black,
            transparent 95%
        );

}


.lecture-orbit {

    position: absolute;

    border:
        1px solid
        rgba(255,255,255,.055);

    border-radius: 50%;

}


.lectures-hero .orbit-one {

    width: 570px;
    height: 570px;

    right: -230px;
    top: 90px;

}


.lectures-hero .orbit-two {

    width: 340px;
    height: 340px;

    left: -140px;
    bottom: -130px;

}


.lectures-hero-layout {

    position: relative;

    z-index: 5;

    display: grid;

    grid-template-columns:
        1fr .9fr;

    gap: 78px;

    align-items: center;

}



/* =========================================================
   HERO COPY
========================================================= */

.lectures-eyebrow {

    display: flex;

    align-items: center;

    gap: 12px;

    color:
        rgba(255,255,255,.54);

    font-size: .64rem;

    font-weight: 800;

    letter-spacing: .18em;

}


.lectures-eyebrow span {

    width: 35px;
    height: 35px;

    display: grid;

    place-items: center;

    color: #ffffff;

    border:
        1px solid
        rgba(255,255,255,.22);

    border-radius: 50%;

    letter-spacing: 0;

}


.lectures-hero-copy h1 {

    margin-top: 28px;

    font:
        700
        clamp(4rem,7.5vw,7.5rem)
        /.88
        var(--display-font);

    letter-spacing:
        -.075em;

}


.lectures-hero-copy h1 em {

    display: block;

    color:
        rgba(255,255,255,.42);

    font-style: normal;

}


.lectures-hero-description {

    max-width: 670px;

    margin-top: 30px;

    color:
        rgba(255,255,255,.57);

    font-size: .96rem;

}


.lectures-hero-actions {

    display: flex;

    flex-wrap: wrap;

    gap: 9px;

    margin-top: 32px;

}


.lectures-primary-button,
.lectures-secondary-button {

    min-height: 49px;

    padding:
        0 20px;

    display: inline-flex;

    align-items: center;

    justify-content: center;

    gap: 9px;

    border-radius: 4px;

    font-size: .67rem;

    font-weight: 800;

    transition:
        transform .25s ease;

}


.lectures-primary-button {

    color: #111111;

    background: #ffffff;

}


.lectures-secondary-button {

    color: #ffffff;

    background:
        rgba(255,255,255,.025);

    border:
        1px solid
        rgba(255,255,255,.15);

}


.lectures-primary-button:hover,
.lectures-secondary-button:hover {

    transform:
        translateY(-3px);

}



/* =========================================================
   HERO META
========================================================= */

.lectures-hero-meta {

    max-width: 680px;

    margin-top: 44px;

    display: grid;

    grid-template-columns:
        repeat(3,1fr);

    gap: 1px;

    background:
        rgba(255,255,255,.09);

    border:
        1px solid
        rgba(255,255,255,.09);

}


.lectures-hero-meta div {

    padding:
        13px 15px;

    background:
        rgba(8,8,8,.92);

}


.lectures-hero-meta span,
.lectures-hero-meta strong {

    display: block;

}


.lectures-hero-meta span {

    color:
        rgba(255,255,255,.25);

    font-size: .46rem;

    font-weight: 800;

    letter-spacing: .11em;

}


.lectures-hero-meta strong {

    margin-top: 3px;

    color:
        rgba(255,255,255,.76);

    font-size: .62rem;

}



/* =========================================================
   COURSE PANEL
========================================================= */

.lecture-course-panel {

    min-height: 520px;

    display: flex;

    flex-direction: column;

    border:
        1px solid
        rgba(255,255,255,.12);

    background:
        rgba(255,255,255,.022);

    box-shadow:
        0 45px 100px
        rgba(0,0,0,.38);

}


.lecture-panel-header,
.lecture-panel-footer {

    padding:
        14px 17px;

    color:
        rgba(255,255,255,.33);

    font-size: .49rem;

    font-weight: 800;

    letter-spacing: .13em;

}


.lecture-panel-header {

    display: flex;

    justify-content: space-between;

    border-bottom:
        1px solid
        rgba(255,255,255,.09);

}


.lecture-panel-footer {

    text-align: center;

    border-top:
        1px solid
        rgba(255,255,255,.09);

}


.lecture-panel-status {

    display: flex;

    align-items: center;

    gap: 6px;

}


.lecture-panel-status i {

    font-size: .32rem;

}


.lecture-course-map {

    position: relative;

    flex: 1;

    padding:
        42px 55px;

    display: flex;

    flex-direction: column;

    justify-content: space-between;

}


.course-map-line {

    position: absolute;

    top: 62px;
    bottom: 62px;
    left: 73px;

    width: 1px;

    background:
        rgba(255,255,255,.12);

}


.course-map-node {

    position: relative;

    z-index: 2;

    display: grid;

    grid-template-columns:
        38px 1fr;

    gap: 15px;

    align-items: center;

    color:
        rgba(255,255,255,.40);

    transition:
        color .3s ease,
        transform .3s ease;

}


.course-map-node.active {

    color: #ffffff;

    transform:
        translateX(7px);

}


.course-map-node span {

    width: 38px;
    height: 38px;

    display: grid;

    place-items: center;

    background: #080808;

    border:
        1px solid
        rgba(255,255,255,.16);

    border-radius: 50%;

    font:
        700 .53rem
        var(--display-font);

}


.course-map-node.active span {

    color: #111111;

    background: #ffffff;

}


.course-map-node strong {

    font-size: .66rem;

}



/* =========================================================
   SECTIONS
========================================================= */

.lecture-roadmap,
.lecture-series,
.lecture-progress,
.lecture-format {

    padding:
        112px 0;

}


.lecture-section-heading {

    display: grid;

    grid-template-columns:
        .40fr 1.1fr;

    gap: 80px;

    margin-bottom: 60px;

}


.lecture-section-number {

    display: block;

    margin-bottom: 8px;

    color:
        rgba(20,20,20,.17);

    font:
        700 3.3rem
        var(--display-font);

    line-height: 1;

}


.dark-heading
.lecture-section-number {

    color:
        rgba(255,255,255,.15);

}


.lecture-section-heading h2 {

    max-width: 850px;

    font:
        700
        clamp(2.8rem,5vw,5rem)
        /.95
        var(--display-font);

    letter-spacing:
        -.057em;

}


.lecture-section-heading
> div:last-child
> p {

    max-width: 740px;

    margin-top: 18px;

    opacity: .58;

}



/* =========================================================
   ROADMAP
========================================================= */

.lecture-roadmap-flow {

    display: grid;

    grid-template-columns:
        1fr 50px
        1fr 50px
        1fr;

    gap: 10px;

    align-items: center;

}


.lecture-roadmap-flow > div {

    min-height: 180px;

    padding: 24px;

    border:
        1px solid
        rgba(20,20,20,.12);

}


.lecture-roadmap-flow > i {

    text-align: center;

    color: #aaa;

}


.lecture-roadmap-flow span {

    color: #99999d;

    font-size: .46rem;

    font-weight: 800;

    letter-spacing: .12em;

}


.lecture-roadmap-flow strong {

    display: block;

    margin-top: 35px;

    font:
        700 1.25rem
        var(--display-font);

}


.lecture-roadmap-flow p {

    margin-top: 7px;

    color: #737378;

    font-size: .68rem;

}



/* =========================================================
   LECTURE CARDS
========================================================= */

.lecture-card {

    display: grid;

    grid-template-columns:
        .8fr 1.2fr;

    min-height: 310px;

    margin-bottom: 10px;

    border:
        1px solid
        rgba(255,255,255,.10);

    background:
        rgba(255,255,255,.022);

    transition:
        transform .28s ease,
        border-color .28s ease,
        background .28s ease;

}


.lecture-card:hover {

    transform:
        translateY(-4px);

    border-color:
        rgba(255,255,255,.25);

    background:
        rgba(255,255,255,.035);

}



/* =========================================================
   VIDEO PLACEHOLDER
========================================================= */

.lecture-video-placeholder {

    position: relative;

    min-height: 410px;

    display: grid;

    place-items: center;

    overflow: hidden;

    background:

        linear-gradient(
            rgba(255,255,255,.025) 1px,
            transparent 1px
        ),

        linear-gradient(
            90deg,
            rgba(255,255,255,.025) 1px,
            transparent 1px
        ),

        #050505;

    background-size:
        40px 40px;

    border-right:
        1px solid
        rgba(255,255,255,.09);

}


.lecture-video-placeholder::before {

    content: "";

    position: absolute;

    width: 220px;
    height: 220px;

    border:
        1px solid
        rgba(255,255,255,.07);

    border-radius: 50%;

}


.lecture-video-placeholder::after {

    content: "";

    position: absolute;

    width: 320px;
    height: 320px;

    border:
        1px solid
        rgba(255,255,255,.035);

    border-radius: 50%;

}


.lecture-video-number {

    position: absolute;

    top: 20px;
    left: 22px;

    color:
        rgba(255,255,255,.10);

    font:
        700 3rem
        var(--display-font);

}


.lecture-play-button {

    position: relative;

    z-index: 5;

    width: 76px;
    height: 76px;

    display: grid;

    place-items: center;

    color: #111111;

    background: #ffffff;

    border: 0;

    border-radius: 50%;

    cursor: pointer;

    font-size: 1rem;

    transition:
        transform .25s ease,
        box-shadow .25s ease;

}


.lecture-play-button:hover {

    transform:
        scale(1.08);

    box-shadow:
        0 0 0 12px
        rgba(255,255,255,.06);

}


.lecture-play-button i {

    margin-left: 3px;

}


.lecture-coming-soon {

    position: absolute;

    left: 22px;
    bottom: 20px;

    color:
        rgba(255,255,255,.30);

    font-size: .44rem;

    font-weight: 800;

    letter-spacing: .12em;

}



/* =========================================================
   CARD COPY
========================================================= */

.lecture-card-content {

    padding:
        38px 40px;

    display: flex;

    flex-direction: column;

    justify-content: center;

}


.lecture-card-content > span {

    color:
        rgba(255,255,255,.27);

    font-size: .47rem;

    font-weight: 800;

    letter-spacing: .13em;

}


.lecture-card-content h3 {

    margin-top: 8px;

    font:
        700
        clamp(1.7rem,3vw,2.8rem)
        /.98
        var(--display-font);

    letter-spacing:
        -.045em;

}


.lecture-card-content p {

    max-width: 680px;

    margin-top: 18px;

    color:
        rgba(255,255,255,.48);

    font-size: .73rem;

}


.lecture-tags {

    display: flex;

    flex-wrap: wrap;

    gap: 5px;

    margin-top: 25px;

}


.lecture-tags span {

    padding:
        5px 8px;

    color:
        rgba(255,255,255,.40);

    border:
        1px solid
        rgba(255,255,255,.10);

    font-size: .45rem;

    font-weight: 800;

    letter-spacing: .06em;

}



/* =========================================================
   PROGRESS
========================================================= */

.lecture-progress-panel {

    padding: 32px;

    border:
        1px solid
        rgba(20,20,20,.12);

    background: #ffffff;

}


.lecture-progress-top {

    display: flex;

    justify-content: space-between;

    align-items: flex-end;

    gap: 30px;

}


.lecture-progress-top span {

    color: #99999d;

    font-size: .47rem;

    font-weight: 800;

    letter-spacing: .11em;

}


.lecture-progress-top strong {

    display: block;

    margin-top: 6px;

    font:
        700 1.4rem
        var(--display-font);

}


.lecture-progress-percent {

    color: #111111 !important;

    font:
        700 2.5rem
        var(--display-font) !important;

}


.lecture-progress-track {

    height: 6px;

    margin-top: 25px;

    background: #e6e6e3;

}


.lecture-progress-track span {

    display: block;

    width: 0;

    height: 100%;

    background: #111111;

    transition:
        width 1s ease;

}


.lecture-progress-markers {

    margin-top: 11px;

    display: grid;

    grid-template-columns:
        repeat(11,1fr);

    color: #aaa;

    font-size: .43rem;

    text-align: center;

}



/* =========================================================
   FORMAT CARDS
========================================================= */

.lecture-format-grid {

    display: grid;

    grid-template-columns:
        repeat(3,1fr);

    gap: 9px;

}


.lecture-format-card {

    min-height: 270px;

    padding: 25px;

    color: #ffffff;

    background:
        rgba(255,255,255,.025);

    border:
        1px solid
        rgba(255,255,255,.10);

    transition:
        transform .28s ease,
        background .28s ease;

}


.lecture-format-card:hover {

    transform:
        translateY(-5px);

    background:
        rgba(255,255,255,.045);

}


.lecture-format-card > i {

    font-size: 1.2rem;

}


.lecture-format-card > span {

    display: block;

    margin-top: 52px;

    color:
        rgba(255,255,255,.27);

    font-size: .46rem;

    font-weight: 800;

    letter-spacing: .12em;

}


.lecture-format-card h3 {

    margin-top: 6px;

    font:
        700 1.25rem
        var(--display-font);

}


.lecture-format-card p {

    margin-top: 9px;

    color:
        rgba(255,255,255,.43);

    font-size: .68rem;

}



/* =========================================================
   CONTINUE
========================================================= */

.lecture-continue {

    padding:
        90px 0;

}


.lecture-continue-layout {

    display: flex;

    justify-content: space-between;

    align-items: flex-end;

    gap: 50px;

}


.lecture-continue-layout
> div:first-child span {

    color: #99999d;

    font-size: .47rem;

    font-weight: 800;

    letter-spacing: .13em;

}


.lecture-continue h2 {

    margin-top: 7px;

    font:
        700
        clamp(2.3rem,4.3vw,4.1rem)
        /.96
        var(--display-font);

    letter-spacing:
        -.055em;

}


.lecture-continue-links {

    display: flex;

    flex-wrap: wrap;

    gap: 6px;

}


.lecture-continue-links a {

    min-height: 43px;

    padding:
        0 14px;

    display: inline-flex;

    align-items: center;

    gap: 8px;

    color: #111111;

    border:
        1px solid
        rgba(20,20,20,.13);

    font-size: .57rem;

    font-weight: 800;

}


.lecture-continue-primary {

    color: #ffffff !important;

    background: #111111;

}



/* =========================================================
   TOAST
========================================================= */

.lecture-toast {

    position: fixed;

    right: 24px;
    bottom: 24px;

    z-index: 5000;

    min-width: 265px;

    padding:
        14px 16px;

    display: grid;

    grid-template-columns:
        30px 1fr;

    gap: 10px;

    align-items: center;

    color: #ffffff;

    background: #111111;

    border:
        1px solid
        rgba(255,255,255,.13);

    box-shadow:
        0 22px 55px
        rgba(0,0,0,.28);

    opacity: 0;

    transform:
        translateY(25px);

    pointer-events: none;

    transition:
        opacity .3s ease,
        transform .3s ease;

}


.lecture-toast.show {

    opacity: 1;

    transform: none;

}


.lecture-toast > i {

    width: 29px;
    height: 29px;

    display: grid;

    place-items: center;

    color: #111111;

    background: #ffffff;

    border-radius: 50%;

}


.lecture-toast strong,
.lecture-toast span {

    display: block;

}


.lecture-toast strong {

    font-size: .63rem;

}


.lecture-toast span {

    margin-top: 2px;

    color:
        rgba(255,255,255,.42);

    font-size: .52rem;

}



/* =========================================================
   RESPONSIVE
========================================================= */

@media(max-width:1050px) {

    .lectures-hero-layout {

        grid-template-columns:
            1fr;

    }


    .lecture-course-panel {

        max-width: 720px;

    }

}



@media(max-width:760px) {

    .lecture-section-heading {

        grid-template-columns:
            1fr;

        gap: 20px;

    }


    .lecture-roadmap-flow {

        grid-template-columns:
            1fr;

    }


    .lecture-roadmap-flow > i {

        transform:
            rotate(90deg);

    }


    .lecture-card {

        grid-template-columns:
            1fr;

    }


    .lecture-video-placeholder {

        border-right: 0;

        border-bottom:
            1px solid
            rgba(255,255,255,.09);

    }


    .lecture-format-grid {

        grid-template-columns:
            1fr;

    }


    .lecture-continue-layout {

        flex-direction: column;

        align-items: flex-start;

    }

}



@media(max-width:520px) {

    .lectures-hero {

        padding-top: 125px;

    }


    .lectures-hero-meta {

        grid-template-columns:
            1fr;

    }


    .lecture-card-content {

        padding:
            28px 22px;

    }


    .lecture-video-placeholder {

        min-height: 240px;

    }


    .lecture-progress-markers {

        grid-template-columns:
            repeat(6,1fr);

        gap: 8px;

    }

}

/* =========================================================
   YOUTUBE LECTURE PLAYER
========================================================= */

.lecture-video-embed {
    position: relative;

    width: 100%;
    min-height: 410px;
    height: 100%;

    overflow: hidden;

    background: #000;

    border-right:
        1px solid
        rgba(255,255,255,.09);
}


/* The YouTube player completely fills the DPT video panel */

.lecture-video-embed iframe {
    position: absolute;

    inset: 0;

    width: 100%;
    height: 100%;

    display: block;

    border: 0;

    background: #000;
}


/* Small DPT-style edge treatment */

.lecture-video-embed::after {
    content: "";

    position: absolute;

    inset: 0;

    z-index: 2;

    pointer-events: none;

    box-shadow:
        inset 0 0 0 1px
        rgba(255,255,255,.025);
}


/* =========================================================
   VIDEO CARD IMPROVEMENTS
========================================================= */

.lecture-card:has(.lecture-video-embed) {
    min-height: 410px;
}

.lecture-card:has(.lecture-video-embed):hover {
    border-color:
        rgba(255,255,255,.30);
}


/* =========================================================
   RESPONSIVE VIDEO PLAYER
========================================================= */

@media(max-width:760px) {

    .lecture-video-embed {
        min-height: 0;

        height: auto;

        aspect-ratio: 16 / 9;

        border-right: 0;

        border-bottom:
            1px solid
            rgba(255,255,255,.09);
    }

}


@media(max-width:520px) {

    .lecture-video-embed {
        aspect-ratio: 16 / 9;
    }

}