@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&family=Space+Mono:wght@400;700&display=swap");

*, *::before, *::after { box-sizing: border-box; }

:root {
    --black: #050607;
    --panel: #0b0d0f;
    --white: #f2f4f5;
    --muted: #9299a1;
    --line: #252a30;
    --blue: #64a5f5;
    --acid: #bbff69;
    --sans: "DM Sans", sans-serif;
    --mono: "Space Mono", monospace;
    --page: min(1440px, calc(100vw - 64px));
}

html { scroll-behavior: smooth; background: var(--black); }
body { margin: 0; overflow-x: hidden; background: var(--black); color: var(--white); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--acid); outline-offset: 4px; }
::selection { background: var(--blue); color: var(--black); }

.site-header {
    position: absolute; z-index: 20; top: 0; left: 50%; width: var(--page); height: 90px;
    transform: translateX(-50%); display: flex; align-items: center; justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}
.brand { display: flex; align-items: center; gap: 12px; font: 700 0.78rem var(--mono); }
.brand img { object-fit: contain; }
.site-header nav { display: flex; align-items: center; gap: clamp(20px, 3vw, 52px); font: 0.68rem var(--mono); text-transform: uppercase; }
.site-header nav a { color: #c4c8cd; transition: color 180ms ease; }
.site-header nav a:hover { color: var(--white); }
.site-header nav .nav-accent { color: var(--acid); }

.hero {
    position: relative; min-height: clamp(560px, 88svh, 860px); overflow: hidden; display: flex; align-items: center; isolation: isolate;
    background: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px), radial-gradient(circle at 72% 48%, #142738 0, #080c10 31%, var(--black) 62%);
    background-size: 86px 86px, 86px 86px, auto;
}
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 24%; z-index: -1; background: linear-gradient(transparent, var(--black)); }
.hero-content { position: relative; z-index: 3; width: var(--page); margin: 76px auto 0; }
.eyebrow { margin: 0 0 28px; color: var(--muted); font: 0.67rem/1.5 var(--mono); text-transform: uppercase; }
.hero .eyebrow { display: flex; align-items: center; gap: 10px; color: #c3c9ce; }
.hero .eyebrow span { width: 7px; height: 7px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 14px var(--acid); }
.hero h1 { width: min(100%, 1120px); margin: 0; }
.hero h1 img { display: block; width: 100%; height: auto; filter: drop-shadow(0 0 25px rgba(50,150,236,.2)); }
.hero-claim { margin: 28px 0 40px; color: #b4bac0; font-size: clamp(1.15rem, 1.8vw, 1.65rem); line-height: 1.3; }
.primary-link { display: inline-flex; align-items: center; justify-content: space-between; width: 260px; padding: 15px 0; border-bottom: 1px solid var(--white); font: 0.68rem var(--mono); text-transform: uppercase; }
.primary-link span { color: var(--acid); font-size: 1.1rem; }
.hero-mark { position: absolute; z-index: 2; right: clamp(-80px, 3vw, 80px); bottom: clamp(-20px, 3vw, 60px); width: clamp(300px, 38vw, 620px); height: auto; opacity: .27; filter: drop-shadow(0 0 38px rgba(187,255,105,.12)); animation: turn 28s linear infinite; }
.hero-glow { position: absolute; right: 12%; bottom: 8%; width: 30vw; aspect-ratio: 1; border: 1px solid rgba(100,165,245,.16); border-radius: 50%; box-shadow: 0 0 100px rgba(100,165,245,.08), inset 0 0 100px rgba(100,165,245,.05); }
.hero-index { position: absolute; right: 32px; top: 50%; color: #6f767d; font: .6rem var(--mono); writing-mode: vertical-rl; }

@media (max-height: 760px) and (min-width: 621px) {
    .hero { min-height: max(560px, 88svh); align-items: flex-start; }
    .hero-content { margin-top: 125px; }
    .hero .eyebrow { margin-bottom: 18px; }
    .hero h1 { width: min(78vw, 900px); }
    .hero-claim { margin: 18px 0 24px; font-size: 1.1rem; }
    .hero-mark { width: 360px; right: 2vw; bottom: 20px; }
}

.sessions, .about, .platforms, .site-footer { width: var(--page); margin: 0 auto; }
.sessions { padding: 50px 0 150px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 56px; }
.section-heading .eyebrow { margin-bottom: 12px; }
.section-heading h2, .about h2 { margin: 0; font-size: clamp(2.7rem, 6vw, 6.2rem); font-weight: 500; line-height: .95; letter-spacing: 0; }
.section-heading > a { padding-bottom: 5px; border-bottom: 1px solid var(--line); color: var(--muted); font: .65rem var(--mono); text-transform: uppercase; }
.featured { min-height: 420px; background: var(--panel); border-block: 1px solid var(--line); }
.featured-link { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(290px, .7fr); min-height: 540px; }
.featured-media, .card-media { position: relative; overflow: hidden; background: #101317; }
.featured-media img, .card-media img { display: block; width: 100%; height: 100%; object-fit: cover; filter: saturate(.75) contrast(1.08); transition: transform 600ms cubic-bezier(.2,.8,.2,1), filter 400ms ease; }
.featured-link:hover img, .video-card a:hover img { transform: scale(1.025); filter: saturate(1) contrast(1.05); }
.featured-info { display: flex; flex-direction: column; justify-content: flex-end; padding: clamp(32px, 4vw, 64px); }
.video-label, .video-meta, .card-info time { color: var(--muted); font: .62rem var(--mono); text-transform: uppercase; }
.video-label { margin: 0 auto auto 0; color: var(--acid); }
.featured-info h3 { margin: 0 0 30px; font-size: clamp(1.7rem, 3vw, 3.2rem); font-weight: 500; line-height: 1.08; }
.video-meta { margin: 0; line-height: 1.7; }
.play { position: absolute; left: 50%; top: 50%; display: grid; place-items: center; width: 78px; height: 78px; transform: translate(-50%,-50%); border-radius: 50%; background: var(--acid); color: var(--black); font-size: 1rem; padding-left: 4px; box-shadow: 0 10px 40px rgba(0,0,0,.35); }
.feed-placeholder { min-height: 420px; display: grid; place-content: center; justify-items: center; gap: 18px; color: var(--muted); font: .65rem var(--mono); text-transform: uppercase; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 0 rgba(187,255,105,.5); animation: pulse 1.7s infinite; }
.feed-error a { color: var(--acid); border-bottom: 1px solid currentColor; }
.video-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-left: 1px solid var(--line); }
.video-card { min-width: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.card-media { aspect-ratio: 16 / 10; }
.card-number { position: absolute; top: 16px; left: 16px; padding: 5px 8px; background: rgba(5,6,7,.82); font: .58rem var(--mono); }
.card-info { min-height: 150px; display: flex; flex-direction: column; justify-content: space-between; padding: 24px; background: var(--panel); }
.card-info h3 { margin: 0 0 24px; font-size: 1.05rem; font-weight: 500; line-height: 1.3; }
.feed-controls { display: flex; justify-content: center; padding-top: 44px; }
.feed-status { color: var(--muted); font: .65rem var(--mono); }
.load-more { width: 220px; display: flex; align-items: center; justify-content: space-between; padding: 15px 0; border: 0; border-bottom: 1px solid var(--line); background: transparent; color: var(--white); cursor: pointer; font: .68rem var(--mono); text-transform: uppercase; }

.about { display: grid; grid-template-columns: 1.25fr .75fr; gap: 10vw; padding: 150px 0; border-top: 1px solid var(--line); }
.about-copy { align-self: end; max-width: 520px; color: #aeb4ba; font-size: clamp(1.05rem, 1.5vw, 1.35rem); line-height: 1.55; }
.about-copy p { margin: 0 0 1.4em; }
.platforms { padding: 120px 0 150px; }
.platforms nav { border-top: 1px solid var(--line); }
.platforms nav a { display: grid; grid-template-columns: 80px 1fr auto; align-items: center; min-height: 88px; border-bottom: 1px solid var(--line); font-size: clamp(1.4rem, 3vw, 2.6rem); transition: color 180ms ease, padding 180ms ease; }
.platforms nav a:hover { padding-left: 12px; color: var(--blue); }
.platforms nav span, .platforms nav b { color: var(--muted); font: 400 .62rem var(--mono); }
.site-footer { min-height: 340px; padding: 70px 0 40px; border-top: 1px solid var(--line); }
.site-footer > img { opacity: .8; }
.site-footer > p { margin: 24px 0 80px; color: var(--muted); font-size: .9rem; line-height: 1.5; }
.footer-meta { display: flex; justify-content: space-between; color: #70767d; font: .6rem var(--mono); text-transform: uppercase; }

@keyframes turn { to { transform: rotate(360deg); } }
@keyframes pulse { 70% { box-shadow: 0 0 0 16px rgba(187,255,105,0); } 100% { box-shadow: 0 0 0 0 rgba(187,255,105,0); } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .hero-mark { animation: none; } .featured-media img, .card-media img { transition: none; } }

@media (max-width: 900px) {
    :root { --page: calc(100vw - 40px); }
    .hero { min-height: 820px; }
    .hero-mark { right: -110px; bottom: 40px; width: 480px; }
    .featured-link { grid-template-columns: 1fr; }
    .featured-media { aspect-ratio: 16 / 9; }
    .featured-info { min-height: 300px; }
    .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .about { grid-template-columns: 1fr; gap: 70px; }
}

@media (max-width: 620px) {
    :root { --page: calc(100vw - 28px); }
    .site-header { height: 72px; }
    .site-header nav a:not(.nav-accent) { display: none; }
    .hero { min-height: 720px; background-size: 56px 56px, 56px 56px, auto; }
    .hero-content { margin-top: 0; }
    .hero .eyebrow { max-width: 230px; }
    .hero h1 { width: 100%; }
    .hero-mark { right: -115px; bottom: 40px; width: 350px; opacity: .22; }
    .hero-glow { width: 75vw; right: -20%; }
    .hero-index { display: none; }
    .hero { min-height: min(720px, 88svh); }
    .sessions { padding: 56px 0 110px; }
    .section-heading { display: block; margin-bottom: 38px; }
    .section-heading > a { display: inline-block; margin-top: 28px; }
    .section-heading h2, .about h2 { font-size: clamp(2.5rem, 13vw, 4rem); }
    .featured { min-height: 240px; }
    .featured-link { min-height: 0; }
    .featured-info { min-height: 260px; padding: 28px 22px; }
    .featured-info h3 { font-size: 1.8rem; }
    .play { width: 58px; height: 58px; }
    .feed-placeholder { min-height: 260px; }
    .video-grid { grid-template-columns: 1fr; }
    .card-info { min-height: 130px; }
    .about { padding: 110px 0; }
    .platforms { padding: 90px 0 110px; }
    .platforms nav a { grid-template-columns: 48px 1fr auto; min-height: 74px; }
    .footer-meta { align-items: flex-end; gap: 24px; }
}