stack-chan

:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0f1117;
  color: #f7efe7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 170, 115, 0.18), transparent 28rem),
    radial-gradient(circle at 82% 20%, rgba(121, 184, 255, 0.18), transparent 24rem),
    #0f1117;
}

.app-shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 48px 0;
}

.hero {
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: #ffbe8a;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

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

h1 {
  margin-bottom: 12px;
  font-size: clamp(2rem, 6vw, 4.8rem);
  line-height: 0.95;
}

.hero p:not(.eyebrow) {
  max-width: 720px;
  color: #d8d0c8;
  line-height: 1.75;
}

.simulator-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: stretch;
}

.viewport-card,
.control-card {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  overflow: hidden;
}

.viewport-card {
  position: relative;
  min-height: 620px;
}

#stackchan-viewport {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 620px;
  cursor: grab;
  touch-action: none;
}

#stackchan-viewport:active {
  cursor: grabbing;
}

#simulator-screen {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 320px;
  height: 240px;
}

.control-card {
  padding: 24px;
}

.control-card h2 {
  margin-bottom: 8px;
}

#simulator-info {
  min-height: 3em;
  color: #bfb7ad;
  line-height: 1.5;
}

.controls {
  display: grid;
  gap: 12px;
  margin: 24px 0;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 16px;
  background: #f7efe7;
  color: #19130f;
  font-weight: 700;
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease;
}

button:hover {
  transform: translateY(-1px);
  background: #ffd2aa;
}

button[aria-pressed="true"] {
  background: #8bd3ff;
}

.note {
  color: #a8a097;
  font-size: 0.9rem;
  line-height: 1.65;
}

@media (max-width: 880px) {
  .simulator-layout {
    grid-template-columns: 1fr;
  }

  .viewport-card,
  #stackchan-viewport {
    min-height: 480px;
  }
}