:root {
  --login-canvas: #111820;
  --login-surface: #18222c;
  --login-text: #f2f0ec;
  --login-muted: #aba8a3;
  --login-label: #d8d6d1;
  --login-accent: #1f9dec;
  --login-accent-hover: #5bb8f5;
  --login-accent-ink: #ffffff;
  --login-error: #ffd6d3;
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  background: var(--login-canvas);
  color: var(--login-text);
}

* {
  box-sizing: border-box;
}

body {
  min-width: 280px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 50% 8%, rgb(31 157 236 / 16%), transparent 40%),
    var(--login-canvas);
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.login-card {
  width: min(100%, 410px);
  padding: 34px;
  border: 1px solid rgb(255 255 255 / 10%);
  border-radius: 20px;
  background: rgb(24 34 44 / 88%);
  box-shadow: 0 28px 80px rgb(0 0 0 / 38%);
  backdrop-filter: blur(28px) saturate(130%);
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: #fff;
  box-shadow: 0 8px 24px rgb(0 0 0 / 26%), 0 0 0 1px rgb(255 255 255 / 10%);
  overflow: hidden;
}

.brand-mark svg {
  display: block;
  width: 100%;
  height: 100%;
}

.eyebrow {
  margin: 24px 0 6px;
  color: var(--login-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(29px, 8vw, 38px);
  letter-spacing: -.035em;
}

.intro,
.privacy {
  color: var(--login-muted);
  line-height: 1.5;
}

.intro {
  margin: 12px 0 26px;
}

.login-notice {
  margin: 0 0 18px;
  padding: 12px 14px;
  border: 1px solid rgb(255 125 120 / 30%);
  border-radius: 12px;
  color: var(--login-error);
  background: rgb(135 45 42 / 22%);
  font-size: 14px;
  line-height: 1.4;
}

form {
  display: grid;
  gap: 10px;
}

label {
  color: var(--login-label);
  font-size: 13px;
  font-weight: 650;
}

input,
button {
  width: 100%;
  min-height: 48px;
  border-radius: 13px;
  font: inherit;
}

input {
  border: 1px solid rgb(255 255 255 / 14%);
  padding: 0 14px;
  color: var(--login-text);
  background: rgb(8 9 12 / 55%);
  outline: none;
}

input:focus-visible {
  border-color: var(--login-accent);
  box-shadow: 0 0 0 3px rgb(31 157 236 / 20%);
}

button {
  margin-top: 6px;
  border: 0;
  color: var(--login-accent-ink);
  background: var(--login-accent);
  font-weight: 720;
  cursor: pointer;
}

button:hover {
  background: var(--login-accent-hover);
}

button:active {
  transform: scale(.985);
}

.privacy {
  margin: 18px 0 0;
  font-size: 12px;
}

@media (prefers-reduced-transparency: reduce) {
  .login-card {
    background: var(--login-surface);
    backdrop-filter: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  button:active {
    transform: none;
  }
}