:root {
  color-scheme: light;
  --ink: #14213d;
  --muted: #5c6b7a;
  --bg: #f3f6f8;
  --line: #d7dee5;
  --accent: #1b6b4a;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 500px at 10% -10%, #d9ebe3 0%, transparent 55%),
    linear-gradient(180deg, #eef3f6 0%, var(--bg) 40%, #e7edf2 100%);
  color: var(--ink);
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
}

header a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem;
}

.widget {
  width: 100%;
  min-height: 420px;
  border: 1px solid var(--line);
  background: #fff;
}

.hint {
  color: var(--muted);
  font-size: 0.95rem;
}