:root { color-scheme: light; font-family: ui-rounded, system-ui, sans-serif; background: #e8edf1; color: #172b3a; }
* { box-sizing: border-box; }
body { margin: 0; }
.app-shell { max-width: 1000px; margin: auto; padding: 2rem 1rem 3rem; }
header { margin-bottom: 1.25rem; }
h1, h2, p { margin-top: 0; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: .35rem; }
h2 { color: #17324d; }
.eyebrow { color: #a64b2a; font-weight: 800; letter-spacing: .12em; font-size: .75rem; }
.panel { background: #fff; border-radius: 12px; padding: 1.25rem; box-shadow: 0 3px 14px #172b3a18; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); margin-top: 1rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1rem 0; }
button { border: 0; border-radius: 7px; background: #17324d; color: #fff; padding: .7rem 1rem; font: inherit; font-weight: 700; cursor: pointer; }
button:hover, button:focus-visible { background: #24547c; }
pre { overflow: auto; white-space: pre-wrap; background: #f2f5f7; border-radius: 8px; padding: 1rem; min-height: 6rem; font-size: .78rem; }
input { display: block; margin-top: .4rem; width: 100%; padding: .55rem; font: inherit; }
.hint { margin: 1.5rem 0 0; color: #455b6c; }