:root { --tile: #e9f1ec; --card: #fff; --ink: #1d3a32; --soft: #4d655d; --line: #c9d9d0; --err: #9b2948; color-scheme: light; }
@media (prefers-color-scheme: dark) { :root { --tile: #15211d; --card: #20302b; --ink: #e4efe9; --soft: #a8bdb5; --line: #34473f; --err: #f3a9bd; color-scheme: dark; } }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 16px; background: var(--tile); color: var(--ink); font: 17px/1.5 "Atkinson Hyperlegible", system-ui, sans-serif; }
form { width: min(360px, 100%); background: var(--card); padding: 28px 24px; border-radius: 4px 18px 18px 18px; box-shadow: 0 8px 24px -16px rgb(29 58 50 / .5); }
form { position: relative; margin-top: 56px; }
.face { position: absolute; top: -62px; right: 14px; width: 112px; height: auto; transform: rotate(8deg); filter: drop-shadow(3px 3px 0 var(--ink)); }
h1 { font: 800 36px/1 "Bricolage Grotesque", system-ui, sans-serif; letter-spacing: -0.02em; margin: 10px 0 22px; }
label { display: block; font-weight: 700; margin-bottom: 6px; }
input { width: 100%; padding: 12px 14px; border-radius: 12px; border: 2px solid var(--line); background: transparent; color: inherit; font: inherit; }
input:focus { outline: none; border-color: var(--ink); }
input[aria-invalid="true"] { border-color: var(--err); }
.err { color: var(--err); margin: 8px 0 0; font-size: 15px; }
button { margin-top: 18px; width: 100%; padding: 12px; border-radius: 999px; border: 2px solid var(--ink); background: var(--ink); color: var(--tile); font-family: inherit; font-size: 17px; font-weight: 700; cursor: pointer; }
:focus-visible { outline: 3px solid #3f6fa3; outline-offset: 2px; }