:root {
  --blue: #1a4db3;
  --ink: #1c2430;
  --muted: #5b6776;
  --line: #e6ebf2;
  --bg: #f5f7fb;
  --surface: #fff;
  --font: "Noto Sans SC", "PingFang SC", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: linear-gradient(180deg, #eef3fb, var(--bg));
  min-height: 100dvh;
}
.auth-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
}
.brand {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}
.brand span { font-weight: 500; color: var(--muted); margin-left: 6px; }
.auth-top a { color: var(--blue); text-decoration: none; }
.auth-shell {
  width: min(480px, calc(100% - 32px));
  margin: 24px auto 48px;
}
.auth-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 12px 32px rgba(28, 52, 96, 0.08);
}
h1 { margin: 0 0 8px; font-size: 24px; }
.lede { color: var(--muted); margin: 0 0 18px; font-size: 14px; }
.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tabs button {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}
.tabs button.is-active { background: var(--blue); color: #fff; border-color: var(--blue); }
form { display: grid; gap: 12px; }
label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; }
input {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
}
button[type="submit"], .actions button {
  border: 0;
  border-radius: 999px;
  padding: 12px 16px;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.actions { display: flex; gap: 8px; margin: 12px 0 20px; flex-wrap: wrap; }
.actions .ghost { background: #fff; color: var(--blue); border: 1px solid var(--line); }
.error { color: #a72d24; margin: 0; font-size: 13px; }
h2 { font-size: 16px; margin: 0 0 10px; }
.order {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  margin-bottom: 8px;
  font-size: 13px;
}
[hidden] { display: none !important; }