:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #edf3fb;
  color: #13213e;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background: radial-gradient(circle at 20% 10%, #d8e8ff 0, transparent 35rem), linear-gradient(145deg, #eff5fb, #e6eef8);
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(100%, 440px);
  padding: clamp(28px, 7vw, 46px);
  background: rgba(255, 255, 255, .96);
  border: 1px solid #d4e0f0;
  border-radius: 24px;
  box-shadow: 0 24px 70px rgba(17, 48, 94, .16);
}

.eyebrow {
  margin: 0 0 12px;
  color: #2c5bea;
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .12em;
}

h1 { margin: 0; font-size: clamp(2rem, 8vw, 2.6rem); letter-spacing: -.045em; }
.intro { margin: 14px 0 28px; color: #526887; line-height: 1.55; }

label { display: block; margin-bottom: 8px; color: #1d3152; font-weight: 700; }
input {
  width: 100%; min-height: 52px; padding: 12px 14px;
  border: 1px solid #b8c9df; border-radius: 12px;
  font: inherit; color: inherit;
}
input:focus { outline: 3px solid #b8d1ff; border-color: #2c5bea; }

button {
  width: 100%; min-height: 52px; margin-top: 16px; border: 0; border-radius: 12px;
  background: #e86e3b; color: #fff; font: inherit; font-weight: 800; cursor: pointer;
}
button:disabled { cursor: wait; opacity: .65; }
.feedback { min-height: 1.4em; margin: 10px 0 0; color: #a9411d; line-height: 1.35; }
.privacy { margin: 24px 0 0; color: #657995; font-size: .84rem; line-height: 1.45; }

@media (max-width: 480px) {
  .login-shell { padding: 16px; }
  .login-card { border-radius: 20px; }
}