:root {
  color-scheme: light;
  --ink: #101820;
  --muted: #5b6672;
  --paper: #f8f8f4;
  --panel: #ffffff;
  --line: #d9ded8;
  --nvidia: #76b900;
  --nvidia-dark: #3f7f12;
  --blue: #245d86;
  --gold: #c99532;
  --red: #c94e4e;
  --shadow: 0 24px 70px rgba(16, 24, 32, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 0.78rem;
  letter-spacing: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a {
  text-decoration: none;
}

.nav a:hover {
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(360px, 0.97fr);
  align-items: center;
  gap: 54px;
  width: min(1160px, calc(100% - 40px));
  min-height: calc(100vh - 92px);
  margin: 0 auto;
  padding: 42px 0 72px;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--nvidia-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3rem, 8vw, 5.8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.18;
}

.hero-lede {
  max-width: 660px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.24rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  font-weight: 900;
  text-decoration: none;
}

.button.primary {
  background: var(--ink);
  color: #fff;
}

.button.primary:hover {
  background: var(--nvidia-dark);
  border-color: var(--nvidia-dark);
}

.button.secondary {
  background: transparent;
}

.button.secondary:hover {
  background: #fff;
}

.hero-lab {
  position: relative;
  min-height: 520px;
  border-radius: 8px;
  background:
    radial-gradient(circle at 24% 20%, rgba(118, 185, 0, 0.36), transparent 28%),
    radial-gradient(circle at 80% 78%, rgba(36, 93, 134, 0.24), transparent 30%),
    linear-gradient(145deg, #e9efe4, #d8e5d2 54%, #eef0e7);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-lab::before {
  position: absolute;
  inset: 28px;
  content: "";
  border: 1px solid rgba(16, 24, 32, 0.12);
  border-radius: 8px;
  background-image:
    linear-gradient(rgba(16, 24, 32, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 24, 32, 0.07) 1px, transparent 1px);
  background-size: 28px 28px;
}

.lab-screen {
  position: absolute;
  top: 56px;
  left: 40px;
  right: 40px;
  border-radius: 8px;
  background: rgba(16, 24, 32, 0.94);
  color: #eff8f0;
  box-shadow: 0 18px 50px rgba(16, 24, 32, 0.3);
  overflow: hidden;
}

.screen-top {
  display: flex;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.screen-top span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.screen-top span:nth-child(1) {
  background: var(--red);
}

.screen-top span:nth-child(2) {
  background: var(--gold);
}

.screen-top span:nth-child(3) {
  background: var(--nvidia);
}

.screen-body {
  display: grid;
  gap: 18px;
  padding: 24px;
}

.code-block {
  display: grid;
  gap: 10px;
  color: #dff3df;
  font: 0.95rem/1.5 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.code-block span {
  display: block;
  padding: 9px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.07);
}

.inference-panel {
  padding: 16px;
  border: 1px solid rgba(118, 185, 0, 0.42);
  border-radius: 8px;
  background: rgba(118, 185, 0, 0.12);
}

.inference-panel strong,
.inference-panel p {
  display: block;
  margin: 0;
}

.inference-panel p {
  margin-top: 4px;
  color: #dbe8db;
}

.hardware-strip {
  position: absolute;
  right: 28px;
  bottom: 30px;
  left: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.hardware-strip span {
  display: grid;
  min-height: 48px;
  place-items: center;
  border: 1px solid rgba(16, 24, 32, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink);
  font-weight: 900;
  backdrop-filter: blur(16px);
}

.featured-section,
.track-section,
.library-section,
.platform-section,
.contact-section {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 82px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 0.52fr 1fr;
  gap: 34px;
  align-items: end;
  margin-bottom: 30px;
}

.section-heading.compact {
  align-items: start;
}

.featured-section,
.library-section,
.platform-section,
.contact-section {
  border-top: 1px solid var(--line);
}

.video-card,
.track-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.featured-video {
  display: grid;
}

.video-card {
  overflow: hidden;
}

.video-card-large {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
}

.thumbnail {
  position: relative;
  min-height: 220px;
  aspect-ratio: 16 / 9;
  background:
    linear-gradient(135deg, rgba(16, 24, 32, 0.08), rgba(16, 24, 32, 0.02)),
    linear-gradient(145deg, #eef3e8, #d9e7d0);
}

.thumbnail::before,
.thumbnail::after {
  position: absolute;
  content: "";
}

.thumbnail::before {
  inset: 24px;
  border: 1px solid rgba(16, 24, 32, 0.12);
  border-radius: 8px;
  background-image:
    linear-gradient(rgba(16, 24, 32, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 24, 32, 0.08) 1px, transparent 1px);
  background-size: 26px 26px;
}

.thumbnail::after {
  right: 30px;
  bottom: 34px;
  width: 42%;
  height: 36%;
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.68) 18%, transparent 18% 28%, rgba(255, 255, 255, 0.68) 28% 52%, transparent 52% 62%, rgba(255, 255, 255, 0.68) 62%),
    rgba(16, 24, 32, 0.22);
}

.thumbnail-hero {
  min-height: 380px;
}

.python-thumb {
  background: linear-gradient(145deg, #e8f0e5, #dfe7f1);
}

.rtx-thumb {
  background: linear-gradient(145deg, #e1f1d5, #d2e2c9);
}

.jetson-thumb {
  background: linear-gradient(145deg, #dfe8ef, #e8ecd7);
}

.agx-thumb {
  background: linear-gradient(145deg, #ece4da, #dce9dc);
}

.vision-thumb {
  background: linear-gradient(145deg, #e9e6f0, #d8e7df);
}

.ml-thumb {
  background: linear-gradient(145deg, #f0ead9, #dce8e6);
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: 68px;
  height: 48px;
  border-radius: 8px;
  background: rgba(16, 24, 32, 0.86);
  transform: translate(-50%, -50%);
}

.play-button::after {
  position: absolute;
  top: 50%;
  left: 53%;
  content: "";
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 16px solid #fff;
  transform: translate(-50%, -50%);
}

.duration {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 2;
  padding: 4px 7px;
  border-radius: 5px;
  background: rgba(16, 24, 32, 0.88);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
}

.video-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 30px;
}

.video-copy p:not(.video-kicker) {
  color: var(--muted);
}

.video-kicker {
  margin: 0 0 10px;
  color: var(--nvidia-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.track-grid,
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.track-grid article {
  min-height: 278px;
  padding: 24px;
}

.track-grid img {
  width: 66px;
  height: 66px;
  margin-bottom: 18px;
}

.track-grid p {
  color: var(--muted);
}

.video-grid .video-card {
  min-height: 100%;
}

.video-grid h3 {
  padding: 0 18px 20px;
}

.video-grid .video-kicker {
  padding: 18px 18px 8px;
  margin: 0;
}

.platform-section {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 1fr);
  gap: 52px;
  align-items: start;
}

.platform-section > div:first-child p,
.contact-section p {
  max-width: 650px;
  color: var(--muted);
  font-size: 1.1rem;
}

.platform-list {
  display: grid;
  gap: 12px;
}

.platform-list div {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 18px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.platform-list span {
  color: var(--blue);
  font-weight: 900;
}

.platform-list p {
  margin: 0;
  color: var(--muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.94rem;
}

.site-footer a {
  text-decoration: none;
}

@media (max-width: 930px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .section-heading,
  .video-card-large,
  .platform-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 28px;
  }

  .hero-lab {
    min-height: 440px;
  }

  .track-grid,
  .video-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .site-header,
  .hero,
  .featured-section,
  .track-section,
  .library-section,
  .platform-section,
  .contact-section,
  .site-footer {
    width: min(100% - 28px, 1160px);
  }

  .nav {
    width: 100%;
    flex-wrap: wrap;
    gap: 12px 18px;
  }

  h1 {
    font-size: clamp(2.6rem, 14vw, 4rem);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-lab {
    min-height: 390px;
  }

  .lab-screen {
    top: 34px;
    left: 18px;
    right: 18px;
  }

  .screen-body {
    padding: 18px;
  }

  .code-block {
    font-size: 0.78rem;
  }

  .hardware-strip {
    grid-template-columns: 1fr;
  }

  .thumbnail-hero,
  .thumbnail {
    min-height: 210px;
  }

  .video-copy {
    padding: 22px;
  }
}