:root {
  color-scheme: dark;
  --bg: #080b12;
  --bg-soft: #111620;
  --panel: #171a24;
  --panel-strong: #202430;
  --text: #f7f8ff;
  --muted: #aeb6c8;
  --line: rgba(255, 255, 255, 0.14);
  --accent: #9d4dff;
  --accent-2: #15c97d;
  --accent-3: #ffca3a;
  --danger: #ff4d5a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 18% 4%, rgba(157, 77, 255, 0.2), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(21, 201, 125, 0.12), transparent 24rem),
    linear-gradient(180deg, #080b12 0%, #0c1018 48%, #090b10 100%);
  color: var(--text);
}

img,
video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent-3);
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  background: rgba(8, 11, 18, 0.78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  font-size: 0.78rem;
  letter-spacing: 0;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
}

nav a {
  border-radius: 8px;
  padding: 0.55rem 0.75rem;
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

nav a:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
}

main {
  overflow: hidden;
}

section,
footer {
  padding-inline: clamp(1rem, 4vw, 4rem);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(34rem, 1.24fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  min-height: calc(100vh - 4.35rem);
  padding-block: clamp(3rem, 8vw, 6rem);
}

.hero-copy {
  max-width: 43rem;
}

.eyebrow {
  margin: 0 0 0.85rem;
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(3rem, 8.2vw, 6.8rem);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4.8vw, 4.2rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: clamp(1.55rem, 3vw, 2.65rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.lead,
.split-section p,
.section-heading p,
.feature-text p {
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  line-height: 1.7;
}

.lead {
  max-width: 40rem;
  margin: 1.5rem 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.85rem 1.15rem;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--danger), var(--accent), #3f7cff);
  box-shadow: 0 0 32px rgba(157, 77, 255, 0.32);
}

.hero-media,
.image-panel,
.feature-row > img,
.stacked-media,
.demo-video,
.exercise-grid figure {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow);
}

.hero-media {
  margin: 0;
  padding: 0.7rem;
}

.hero-media img,
.image-panel img,
.feature-row > img,
.stacked-media img,
.demo-video {
  width: 100%;
  border-radius: 6px;
  object-fit: cover;
}

.hero-media img {
  aspect-ratio: 16 / 9;
  object-position: left center;
}

figcaption {
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-media figcaption {
  padding: 0.75rem 0.2rem 0.15rem;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding-block: 0;
  background: var(--line);
}

.metrics article {
  min-height: 9rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: rgba(17, 22, 32, 0.92);
}

.metrics strong {
  display: block;
  color: var(--accent-3);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1;
}

.metrics span {
  display: block;
  margin-top: 0.5rem;
  color: var(--muted);
}

.split-section,
.demo-section,
.gallery-section,
.features,
.data-security-section {
  padding-block: clamp(4rem, 9vw, 7.5rem);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.split-section p {
  max-width: 46rem;
}

.image-panel {
  margin: 0;
  padding: 0.7rem;
}

.architecture-panel {
  margin: 0;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(157, 77, 255, 0.08), rgba(21, 201, 125, 0.08)),
    #f4f6fb;
}

.image-panel img {
  aspect-ratio: 3 / 2;
}

.section-heading {
  max-width: 54rem;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.section-heading p {
  max-width: 42rem;
}

.feature-row {
  display: grid;
  grid-template-columns: minmax(18rem, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  padding-block: clamp(1.5rem, 4vw, 3.5rem);
  border-top: 1px solid var(--line);
}

.feature-row.reverse {
  grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
}

.feature-row.reverse .feature-text {
  order: 2;
}

.feature-text {
  display: grid;
  gap: 1rem;
}

.feature-number {
  display: inline-flex;
  width: max-content;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 900;
}

.feature-row > img {
  aspect-ratio: 16 / 9;
  padding: 0.5rem;
}

.stacked-media {
  display: grid;
  grid-template-columns: 1fr 0.76fr;
  gap: 0.8rem;
  padding: 0.7rem;
}

.stacked-media img {
  height: 100%;
  min-height: 18rem;
  object-fit: cover;
}

.demo-section {
  background:
    linear-gradient(rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.04)),
    var(--bg-soft);
}

.data-security-section {
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.demo-video {
  aspect-ratio: 16 / 9;
  max-height: 80vh;
}

.exercise-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.exercise-grid figure {
  display: grid;
  min-height: 24rem;
  margin: 0;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(157, 77, 255, 0.08), rgba(21, 201, 125, 0.08)),
    #f4f6fb;
}

.exercise-grid img {
  width: 100%;
  height: 100%;
  min-height: 20rem;
  padding: 1.25rem;
  object-fit: contain;
}

.exercise-grid figcaption {
  padding: 1rem;
  background: var(--panel);
  color: var(--text);
  font-weight: 800;
}

footer {
  border-top: 1px solid var(--line);
  padding-block: 2rem;
  color: var(--muted);
  text-align: center;
}

footer a {
  color: var(--text);
  font-weight: 800;
  text-decoration-color: rgba(255, 255, 255, 0.38);
  text-underline-offset: 0.2em;
}

footer a:hover {
  color: var(--accent-3);
}

.impressum {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
  margin: 0.65rem 0 0;
}

@media (max-width: 1050px) {
  .hero,
  .split-section,
  .feature-row,
  .feature-row.reverse {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-copy {
    max-width: none;
  }

  h1 {
    max-width: 11ch;
  }

  .feature-row.reverse .feature-text {
    order: 0;
  }

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

@media (max-width: 720px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  .hero {
    padding-top: 2.25rem;
  }

  h1 {
    max-width: 10ch;
    font-size: clamp(2.65rem, 18vw, 4.6rem);
  }

  .metrics,
  .exercise-grid {
    grid-template-columns: 1fr;
  }

  .stacked-media {
    grid-template-columns: 1fr;
  }

  .stacked-media img,
  .exercise-grid img {
    min-height: 14rem;
  }

  .exercise-grid figure {
    min-height: 18rem;
  }
}