:root {
  color-scheme: dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #08111d;
  color: #f1f5f9;
}

* { box-sizing: border-box; }

body {
  min-height: 100dvh;
  margin: 0;
  padding: max(24px, env(safe-area-inset-top)) 18px max(24px, env(safe-area-inset-bottom));
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 70% 0, #17334d 0, transparent 38%), #08111d;
}

.login-card {
  width: min(100%, 390px);
  padding: 34px 30px 28px;
  border: 1px solid #2c3c50;
  border-radius: 20px;
  background: rgba(12, 24, 38, .94);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .42);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(145deg, #35d6ff, #176da1);
  color: #04111d;
  font-size: 24px;
  font-style: italic;
  font-weight: 900;
  box-shadow: 0 0 28px rgba(53, 214, 255, .25);
}

.eyebrow { margin: 24px 0 4px; color: #35d6ff; font-size: 10px; font-weight: 750; letter-spacing: .16em; }
h1 { margin: 0; font-size: 32px; letter-spacing: -.03em; }
.intro { margin: 10px 0 25px; color: #b6c2cf; line-height: 1.5; }
.intro span { color: #75869a; font-size: 13px; }
label { display: block; margin-bottom: 7px; color: #94a3b8; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
input, button { width: 100%; height: 48px; border-radius: 10px; font: inherit; }
input { padding: 0 13px; border: 1px solid #3a4c63; background: #08111d; color: #f1f5f9; font-size: 17px; }
input:focus-visible { outline: 2px solid #35d6ff; outline-offset: 2px; }
button { margin-top: 13px; border: 0; background: linear-gradient(145deg, #35d6ff, #1ba0cf); color: #03111c; font-weight: 800; cursor: pointer; }
button:hover { filter: brightness(1.08); }
button:disabled { cursor: wait; opacity: .65; }
.error { min-height: 20px; margin: 10px 0 0; color: #ff7f89; font-size: 12px; text-align: center; }
.login-card > small { display: block; margin-top: 19px; color: #65768b; font-size: 10px; text-align: center; }

@media (prefers-color-scheme: light) {
  :root { color-scheme: light; background: #f3eee2; color: #10202e; }
  body { background: radial-gradient(circle at 70% 0, #c8e9f5 0, transparent 40%), #eef4f8; }
  .login-card { border-color: #b8c9d5; background: rgba(250, 253, 255, .96); box-shadow: 0 24px 70px rgba(37, 68, 86, .18); }
  .intro { color: #526575; }
  .intro span, label { color: #71828f; }
  input { border-color: #b8c9d5; background: #fff; color: #10202e; }
  .login-card > small { color: #71828f; }
}