:root {
  font-family: Inter, system-ui, -apple-system, sans-serif;
  color: #e8eef8;
  background: #090f1c;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
.app { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card {
  width: 100%; max-width: 420px; padding: 36px;
  border: 1px solid #263449; border-radius: 18px;
  background: #131d2d; box-shadow: 0 20px 60px #0004;
}
.brand { font-size: 23px; font-weight: 800; letter-spacing: 1px; }
.brand span { color: #36c8ef; }
.subtitle { color: #36c8ef; font-size: 13px; }
h1 { font-size: 25px; margin: 28px 0 10px; }
p { color: #a8b6c9; line-height: 1.6; }
form { display: grid; gap: 12px; margin-top: 25px; }
label { font-size: 13px; font-weight: 600; }
input {
  width: 100%; padding: 15px; border-radius: 9px;
  border: 1px solid #34445b; background: #0c1523;
  color: white; font-size: 18px; outline: none;
}
input:focus { border-color: #36c8ef; }
button {
  padding: 14px 18px; border: 0; border-radius: 9px;
  background: #19a9d7; color: #07121e;
  font-size: 15px; font-weight: 700; cursor: pointer;
}
button:hover { filter: brightness(1.12); }
button.secondary {
  background: #263449; color: #e8eef8;
}
#back-button { width: 100%; margin-top: 12px; }
.notice { min-height: 22px; font-size: 13px; }
.hidden { display: none !important; }
.dashboard { width: 100%; min-height: 100vh; align-self: stretch; }
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 30px; border-bottom: 1px solid #263449;
}
.dashboard-content { max-width: 1100px; margin: auto; padding: 36px 20px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
.info-card {
  padding: 25px; background: #131d2d;
  border: 1px solid #263449; border-radius: 14px;
}
.info-card h2 { margin-top: 0; font-size: 18px; }
@media(max-width: 700px) {
  .cards { grid-template-columns: 1fr; }
  .auth-card { padding: 25px; }
  .topbar { padding: 18px; }
}