:root {
  --color-background: #fbfbf8;
  --color-surface: rgba(255, 255, 255, 0.78);
  --color-border: rgba(0, 0, 0, 0.14);
  --color-border-strong: rgba(0, 0, 0, 0.22);
  --color-foreground: #101010;
  --color-muted: #6a6a6a;
  --header-height: 64px;
  --content-width: min(1120px, calc(100vw - 32px));
  --canvas-size: min(512px, calc(100vw - 32px));
}

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

html {
  background: var(--color-background);
}

body {
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  color: var(--color-foreground);
  background:
    radial-gradient(circle at top left, rgba(0, 0, 0, 0.04), transparent 28%),
    radial-gradient(circle at bottom right, rgba(0, 0, 0, 0.03), transparent 24%),
    linear-gradient(180deg, #ffffff, var(--color-background));
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black, transparent 80%);
}

.site-shell {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  grid-template-rows: var(--header-height) 1fr auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1;
  height: var(--header-height);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.94);
  backdrop-filter: blur(12px);
  color: #ffffff;
}

.site-header__inner,
.site-footer {
  width: var(--content-width);
  margin: 0 auto;
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand__logo {
  display: block;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
}

.brand__name {
  font-size: clamp(1rem, 0.95rem + 0.55vw, 1.3rem);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  white-space: nowrap;
  color: #ffffff;
}

.site-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 36px 16px 24px;
}

.hero {
  width: min(100%, 760px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.simulation-frame {
  width: min(100%, calc(var(--canvas-size) + 28px));
  padding: 14px;
  border: 1px solid var(--color-border-strong);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(249, 249, 246, 0.95)),
    var(--color-surface);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.12),
    0 2px 0 rgba(0, 0, 0, 0.05);
}

.simulation-frame__canvas {
  display: block;
  width: var(--canvas-size);
  height: auto;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  border: 1px solid rgba(0, 0, 0, 0.16);
  background: #ffffff;
  image-rendering: pixelated;
}

.hero__intro {
  max-width: 37rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.hero h1 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: clamp(1.25rem, 1.1rem + 0.9vw, 1.8rem);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.hero__copy {
  margin: 0;
  color: var(--color-muted);
  font-size: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem);
  line-height: 1.7;
}

.site-footer {
  display: flex;
  justify-content: center;
  padding: 10px 0 18px;
}

.site-footer small {
  color: var(--color-muted);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

@media (max-width: 720px) {
  .site-main {
    padding-top: 28px;
  }

  .hero {
    gap: 18px;
  }

  .simulation-frame {
    padding: 10px;
  }

  .hero__intro {
    max-width: 31rem;
  }

  .brand__name {
    letter-spacing: 0.13em;
  }
}

@media (max-width: 420px) {
  :root {
    --content-width: calc(100vw - 24px);
    --canvas-size: calc(100vw - 24px);
  }

  .site-main {
    padding-top: 22px;
    padding-bottom: 18px;
  }

  .brand {
    gap: 10px;
  }

  .brand__logo {
    width: 36px;
    height: 36px;
  }

  .brand__name {
    font-size: 0.94rem;
    letter-spacing: 0.11em;
  }

  .hero__copy {
    line-height: 1.6;
  }
}