:root {
    --ink: #172033;
    --muted: #5d6978;
    --blue: #07a8d1;
    --green: #76b82a;
    --pink: #e8388d;
    --red: #d8272f;
    --line: #e3e7ec;
    --surface: #ffffff;
    --page: #f7f9fb;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--page);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.5;
}

a { color: inherit; }

.inner 
{
     margin: 0 auto;
     max-width: 1200px;
     width: 100%;
}

.hero {
    padding: 54px 0 34px;
    background: linear-gradient(180deg, #ffffff 0%, #f7f9fb 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 38px;
    align-items: center;
}

h1 {
    margin: 0;
    max-width: 680px;
    font-size: clamp(2.5rem, 6vw, 5.1rem);
    line-height: 0.95;
    letter-spacing: 0;
}

.feature {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 18px 50px rgba(23, 32, 51, 0.08);
}

.feature-media,
.session-thumb {
    background: #eef3f6;
    display: grid;
    place-items: center;
}

.feature-media {
    position: relative;
    aspect-ratio: 16 / 9;
    background: #000;
}

.feature-media img,
.session-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.feature-media iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.feature-media img.logo-fallback,
.session-thumb img.logo-fallback {
    width: 70%;
    height: auto;
    object-fit: contain;
    padding: 26px;
}

.feature-body {
    padding: 24px;
}

h2, h3 {
    margin: 0;
    line-height: 1.15;
    letter-spacing: 0;
}

.feature h2 {
    font-size: clamp(1.45rem, 3vw, 2rem);
}

.session-title {
    font-size: 1.08rem;
}

.summary {
    margin: 12px 0 0;
    color: var(--muted);
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.button,
.filter-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    border-radius: 6px;
    border: 1px solid transparent;
    font: inherit;
    font-weight: 850;
    text-decoration: none;
    cursor: pointer;
}

.button {
    padding: 10px 14px;
    color: #ffffff;
    background: var(--blue);
}

.button.secondary {
    color: var(--ink);
    background: #ffffff;
    border-color: var(--line);
}

.controls {
    padding: 22px 0;
    background: var(--surface);
    border-block: 1px solid var(--line);
}

.controls-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 16px;
    align-items: start;
}

.search-wrap input {
    width: 100%;
    min-height: 46px;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 11px 14px;
    color: var(--ink);
    font: inherit;
    background: #ffffff;
}

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
}

.filter-button {
    min-height: 46px;
    padding: 10px 13px;
    color: var(--ink);
    background: #ffffff;
    border-color: var(--line);
}

.filter-button.is-active {
    color: #ffffff;
    background: var(--ink);
    border-color: var(--ink);
}

.sessions {
    padding: 34px 0 52px;
}

.section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}

.section-heading h2 {
    font-size: clamp(1.65rem, 3vw, 2.4rem);
}

.count {
    color: var(--muted);
    font-weight: 750;
}

.session-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.session-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
}

.session-card.is-hidden {
    display: none;
}

.session-thumb {
    aspect-ratio: 16 / 9;
}

.session-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 18px;
}

.session-body .actions {
    margin-top: auto;
    padding-top: 18px;
}

.empty {
    padding: 28px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--muted);
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 20;
    display: none;
    place-items: center;
    padding: 24px;
    background: rgba(23, 32, 51, 0.82);
}

.modal.is-open { display: grid; }

.modal-window {
    width: min(1080px, 100%);
    background: #000000;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

.modal-top {
    display: flex;
    justify-content: flex-end;
    padding: 10px;
    background: #ffffff;
}

.modal-close {
    min-width: 38px;
    min-height: 38px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #ffffff;
    cursor: pointer;
    font-size: 1.35rem;
    line-height: 1;
}

.modal-frame {
    position: relative;
    aspect-ratio: 16 / 9;
}

.modal-frame iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

footer {
    padding: 22px 0;
    color: #ffffff;
    background: var(--ink);
    text-align: center;
}

footer a { color: #ffffff; }

@media (max-width: 900px) {
    .hero-grid,
    .controls-row {
        grid-template-columns: 1fr;
    }

    .filters {
        justify-content: flex-start;
    }

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

@media (max-width: 620px) {
    .inner {
        width: min(100% - 28px, 1120px);
    }

    .hero {
        padding-top: 34px;
    }

    .session-grid {
        grid-template-columns: 1fr;
    }

    .section-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .button,
    .filter-button {
        width: 100%;
    }
}