:root {
  color-scheme: dark;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: #e4fbff;
  background: #020721;
  letter-spacing: 0;
  --cyan: #11e7f2;
  --muted: #78a8c4;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: #020721; }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.eyebrow { margin: 0 0 14px; color: var(--cyan); font-size: 11px; font-weight: 900; text-transform: uppercase; }
.login-panel { width: min(420px, 100%); }
form { width: min(420px, 100%); padding: 30px; background: #061234; border: 1px solid rgba(17,231,242,.36); box-shadow: 0 0 30px rgba(17,231,242,.06); }
form .eyebrow { color: var(--cyan); }
h2 { margin: 0; color: #e9fdff; font-size: clamp(30px, 4vw, 42px); font-weight: 750; }
.hint { margin: 14px 0 34px; color: var(--muted); line-height: 1.7; }
.field + .field { margin-top: 15px; }
label { display: block; margin-bottom: 9px; font-size: 12px; font-weight: 700; color: #9bc7da; }
.input-wrap { height: 52px; display: flex; border: 1px solid #356680; background: #030b28; }
.input-wrap:focus-within { border-color: var(--cyan); outline: 3px solid rgba(17,231,242,.09); box-shadow: 0 0 15px rgba(17,231,242,.1); }
input { flex: 1; min-width: 0; padding: 0 16px; border: 0; outline: 0; color: #e7fcff; font: inherit; background: transparent; }
.input-wrap span { width: 50px; display: grid; place-items: center; color: var(--cyan); font-size: 22px; }
button { width: 100%; height: 52px; margin-top: 14px; border: 1px solid var(--cyan); background: #072342; color: var(--cyan); font: inherit; font-weight: 850; cursor: pointer; box-shadow: inset 0 0 18px rgba(17,231,242,.06); }
button:hover { background: #0a3650; }
button:focus-visible { outline: 3px solid #ff9b2f; outline-offset: 2px; }
.privacy { margin: 20px 0 0; text-align: center; color: #5f89a1; font-size: 11px; }
@media (max-width: 760px) {
  .login-shell { padding: 18px; }
  form { padding: 24px 18px; }
}