:root {
  color-scheme: dark;
  --bg: #100c16;
  --panel: #191321;
  --panel-soft: #241a2e;
  --ink: #f8f1e8;
  --muted: #b9aebf;
  --line: rgba(255, 255, 255, 0.12);
  --gold: #f5c867;
  --mint: #4de7d4;
  --rose: #f58a8a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 82% 8%, rgba(103, 73, 214, 0.34), transparent 28rem),
    radial-gradient(circle at 12% 18%, rgba(77, 231, 212, 0.16), transparent 30rem),
    linear-gradient(180deg, #110d17 0%, #130e18 45%, #0d0b12 100%);
  color: var(--ink);
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1.25rem, 5vw, 4.5rem);
  border-bottom: 1px solid var(--line);
  background: rgba(16, 12, 22, 0.76);
  backdrop-filter: blur(18px);
}

.brand {
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
}

nav {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1.6rem);
  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, 0.9fr) minmax(18rem, 1.1fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  min-height: calc(100vh - 4rem);
  padding: clamp(3rem, 7vw, 7rem) clamp(1.25rem, 5vw, 4.5rem);
}

.hero-copy {
  max-width: 48rem;
}

.eyebrow,
.tag {
  margin: 0 0 0.8rem;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1 {
  margin: 0;
  max-width: 13ch;
  font-size: clamp(3.2rem, 8vw, 7.4rem);
  line-height: 0.9;
  letter-spacing: -0.05em;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 0.96;
  letter-spacing: -0.035em;
}

h3 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  line-height: 1.05;
}

.lead {
  max-width: 42rem;
  margin: 1.6rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
  line-height: 1.65;
}

.hero-actions,
.download-card .button {
  margin-top: 1.6rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.3);
}

.button.primary {
  background: var(--ink);
  color: #15101c;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.06);
}

.hero-visual {
  margin: 0;
  padding: clamp(0.35rem, 1vw, 0.8rem);
  border: 1px solid var(--line);
  border-radius: 1.4rem;
  background: rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow);
}

.hero-visual img,
.visual-card img {
  width: 100%;
  border-radius: 1rem;
}

.section {
  padding: clamp(3.5rem, 7vw, 7rem) clamp(1.25rem, 5vw, 4.5rem);
}

.section.compact {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.section-heading {
  max-width: 58rem;
}

.statement {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.35rem, 2.5vw, 2.15rem);
  line-height: 1.35;
}

.grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

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

.results-grid .large {
  grid-column: 1 / -1;
}

.visual-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.dark {
  background: #0c0910;
}

.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.feature-list span {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.92rem;
}

.app-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.download-card {
  min-height: 24rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background:
    linear-gradient(135deg, rgba(77, 231, 212, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035));
}

.download-card p:not(.tag) {
  color: var(--muted);
  line-height: 1.65;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem clamp(1.25rem, 5vw, 4.5rem);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero,
  .section.compact,
  .results-grid,
  .app-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: 10ch;
  }

  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  nav {
    width: 100%;
    justify-content: space-between;
  }
}