:root { --blue: #1b6aa1; --blue-dark: #15557f; --amber: #d9542c; --ink: #14212b; --muted: #4a5a66; --line: #c9d3db; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 16px;
  font: 16px/1.5 "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif; color: var(--ink);
  background: linear-gradient(160deg, var(--blue) 0%, var(--blue-dark) 100%); }
.card { width: 100%; max-width: 420px; background: #fff; border-radius: 20px; padding: 32px 28px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; margin-bottom: 18px; }
.brand img { width: 36px; height: 36px; }
h1 { font-size: 1.5rem; margin: 0 0 6px; }
.muted { color: var(--muted); margin: 0 0 18px; }
.small { font-size: .85rem; margin: 16px 0 0; }
label { display: block; font-weight: 600; margin-bottom: 6px; }
input { width: 100%; font: inherit; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px; }
input:focus { outline: 3px solid rgba(27,106,161,.25); border-color: var(--blue); }
button { width: 100%; margin-top: 14px; font: inherit; font-weight: 700; color: #fff; background: var(--blue); border: 0; border-radius: 12px; padding: 13px; cursor: pointer; }
button:hover { background: var(--blue-dark); }
.alert { background: #fdece6; color: #8a2a10; border-radius: 12px; padding: 10px 12px; }