* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; background: #f1f3f9; color: #0b1020; font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
form { width: min(400px, 92vw); background: #fff; padding: 30px; border-radius: 18px; border: 1px solid #dfe4f0; box-shadow: 0 18px 50px rgba(11,16,32,.08); }
.logo { display: block; height: 42px; width: auto; }
.ops { margin: 6px 0 20px; font-size: 12px; font-weight: 800; letter-spacing: .22em; text-transform: uppercase; color: #0A86B8; }
h1 { margin: 0 0 14px; font-size: 24px; }
label { display: block; font-weight: 650; font-size: 13.5px; margin: 12px 0 6px; }
input { width: 100%; height: 46px; padding: 0 12px; font-size: 16px; border: 1.5px solid #dfe4f0; border-radius: 10px; outline: none; }
input:focus { border-color: #0A86B8; box-shadow: 0 0 0 4px rgba(10,134,184,.18); }
button { width: 100%; height: 48px; margin-top: 18px; border: 0; border-radius: 12px; background: #0B1B3D; color: #fff; font-size: 16px; font-weight: 750; cursor: pointer; }
button[disabled] { opacity: .65; }
.err { color: #c62828; font-weight: 600; font-size: 14px; margin: 12px 0 0; }
.err:empty { display: none; }
.fine { margin: 16px 0 0; font-size: 12.5px; color: #6a7494; text-align: center; }