:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; background: #edf2f7; color: #16202c; }
main { width: min(100% - 32px, 380px); background: #fff; border: 1px solid #d9e0e8; border-radius: 8px; padding: 32px; box-shadow: 0 12px 32px rgb(30 52 73 / 10%); }
.brand { color: #245b8f; font-size: 18px; font-weight: 700; margin: 0 0 32px; }
h1 { margin: 0 0 8px; font-size: 24px; line-height: 1.25; }
.intro { color: #536273; font-size: 14px; line-height: 1.6; margin: 0 0 24px; }
form { display: grid; gap: 16px; }
label { display: grid; gap: 7px; color: #344457; font-size: 13px; font-weight: 600; }
input { width: 100%; min-height: 42px; border: 1px solid #b8c5d2; border-radius: 5px; padding: 0 11px; font: inherit; }
input:focus { outline: 2px solid #7eafd7; outline-offset: 1px; border-color: #397cac; }
button { min-height: 44px; border: 0; border-radius: 5px; background: #1d6a9e; color: #fff; cursor: pointer; font: inherit; font-weight: 700; }
button:hover { background: #185a87; }
.error { border-left: 3px solid #ba3a3a; background: #fff3f2; color: #8e2727; padding: 10px 12px; font-size: 13px; line-height: 1.5; }
footer { color: #708092; font-size: 12px; margin-top: 26px; text-align: center; }