:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  color: #f5f5f4;
  background: #100d0b;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 80% 0%, rgb(124 45 18 / 35%), transparent 36rem),
    #100d0b;
}

a {
  color: inherit;
}

.topbar,
main,
footer {
  width: min(1120px, calc(100% - 32px));
  margin-inline: auto;
}

.topbar {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #342821;
}

.brand {
  color: #fb923c;
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 20px;
}

nav a {
  color: #a8a29e;
  font-size: 14px;
  text-decoration: none;
}

.hero {
  max-width: 820px;
  padding: 112px 0 96px;
}

.eyebrow {
  margin: 0 0 12px;
  color: #fb923c;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h2 {
  font-size: clamp(30px, 4vw, 48px);
  letter-spacing: -0.04em;
}

.hero > p:last-child,
.section-grid > div > p,
.panel > p {
  color: #a8a29e;
  line-height: 1.65;
}

.section-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 72px;
  align-items: start;
  padding: 72px 0;
  border-top: 1px solid #342821;
}

#modes {
  padding: 88px 0;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.panel {
  padding: 24px;
  background: #1b1613;
  border: 1px solid #3b2d25;
  border-radius: 18px;
}

form {
  display: grid;
  gap: 18px;
}

label {
  display: grid;
  gap: 8px;
  color: #d6d3d1;
  font-size: 13px;
  font-weight: 700;
}

input {
  width: 100%;
  padding: 12px 14px;
  color: #fafaf9;
  background: #100d0b;
  border: 1px solid #4b3a30;
  border-radius: 10px;
  outline: 0;
}

input:focus {
  border-color: #fb923c;
}

button {
  padding: 12px 18px;
  color: #fff;
  font-weight: 800;
  cursor: pointer;
  background: #ea580c;
  border: 0;
  border-radius: 10px;
}

pre,
output {
  display: block;
  max-width: 100%;
  padding: 12px;
  overflow: auto;
  color: #a8a29e;
  background: #100d0b;
  border-radius: 8px;
  font: 12px/1.5 ui-monospace, monospace;
  white-space: pre-wrap;
}

.mode-grid article > div {
  min-height: 65px;
  margin: 22px 0 14px;
}

footer {
  display: flex;
  justify-content: space-between;
  padding: 28px 0 48px;
  color: #78716c;
  border-top: 1px solid #342821;
  font-size: 12px;
}

@media (max-width: 760px) {
  nav {
    display: none;
  }

  .hero {
    padding: 72px 0;
  }

  .section-grid,
  .mode-grid {
    grid-template-columns: 1fr;
  }

  .section-grid {
    gap: 28px;
  }

  footer {
    flex-direction: column;
    gap: 10px;
  }
}