:root { font-family: system-ui, sans-serif; color: #173d36; background: #f2f3e9; line-height: 1.6; }
* { box-sizing: border-box; } body { margin: 0; } main { max-width: 900px; margin: auto; padding: 1.2rem; }
header, section { background: #fffdf8; border: 1px solid #cad8cc; border-radius: 1rem; padding: 1.2rem; margin-bottom: 1rem; }
[hidden] { display: none !important; } .eyebrow { color: #365c50; font-weight: 700; } .buttons { display: flex; flex-wrap: wrap; gap: .6rem; }
button, a { font: inherit; } button, #hub-link { min-height: 48px; padding: .6rem .9rem; border-radius: .6rem; }
button { color: #173e31; background: #fff; border: 2px solid #315a4d; cursor: pointer; } button:disabled { opacity: .55; cursor: default; }
button[aria-pressed="true"] { background: #dcebd5; border-style: double; border-width: 4px; font-weight: 700; } .primary { color: white; background: #245f4b; }
#hub-link { display: inline-flex; align-items: center; color: #174f74; padding-left: 0; } button:focus-visible, a:focus-visible, [tabindex="0"]:focus-visible { outline: 3px solid #9b4b17; outline-offset: 3px; }
#diagram svg { display: block; width: min(100%, 400px); margin: 1rem auto; } #cards, #cursor, #preview { background: #e8f0e5; border-radius: .5rem; padding: .8rem; overflow-wrap: anywhere; }
#status { min-height: 1.6em; font-weight: 700; } dialog { max-width: min(90vw,34rem); border: 2px solid #315a4d; border-radius: .8rem; } dialog::backdrop { background: #182f29a8; }
footer { padding: .5rem; } @media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }