:root {
  color-scheme: light dark;
}

html,
body,
#root {
  height: 100%;
  width: 100%;
}

body {
  background: radial-gradient(circle at top, #eef2ff 0%, #e2e8f0 40%, #0f172a 140%);
  background: light-dark(radial-gradient(circle at top, #eef2ff 0%, #e2e8f0 40%, #cbd5e1 140%), #020817);
  color: #0f172a;
  color: light-dark(#0f172a, #e2e8f0);
  margin: 0;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji",
    "Segoe UI Emoji", "Segoe UI Symbol";
  overflow: hidden;
}

input,
button {
  font-family: inherit;
  font-size: 1rem;
  line-height: 1rem;
}

.-button {
  background: linear-gradient(135deg, #4f46e5 0%, #2563eb 100%);
  background: light-dark(linear-gradient(135deg, #4f46e5 0%, #2563eb 100%), linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%));
  border-radius: 12px;
  border: none;
  box-sizing: border-box;
  color: white;
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.25);
}

.center-container {
  align-items: center;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100%;
  padding: 20px;
  width: 100%;
}

.card-box {
  background: rgba(255, 255, 255, 0.9);
  background: light-dark(rgba(255, 255, 255, 0.9), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 18px;
  box-shadow:
    0 24px 48px rgba(15, 23, 42, 0.16),
    0 8px 18px rgba(15, 23, 42, 0.08);
  max-width: 650px;
  width: 100%;
  backdrop-filter: blur(8px);
}

.card-box > .header {
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
  color: #0f172a;
  color: light-dark(#0f172a, #f8fafc);
  padding: 30px;
}

.card-box > .header > .main {
  margin: 0;
  font-size: clamp(1.5rem, 2vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.04em;
}

.card-box > .header > .sub {
  color: #475569;
  color: light-dark(#475569, #cbd5e1);
  margin-top: 10px;
  line-height: 1.5;
}

.card-box > .content {
  padding: 40px;
}

.card-box > .content > .none {
  margin: 2px 0;
}

.card-box + .card-box {
  margin-top: 26px;
}

canvas {
  top: 0;
  left: 0;
}