:root {
  color-scheme: light dark;
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #f0f2f7;
  --text: #16181d;
  --muted: #686f7d;
  --line: #dfe3ea;
  --accent: #2563eb;
  --accent-weak: #e8efff;
  --danger: #b42318;
  --ok: #067647;
  --shadow: 0 16px 40px rgba(20, 25, 35, 0.08);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --max-width: 1080px;
  --font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101217;
    --surface: #171a21;
    --surface-2: #20242d;
    --text: #eef1f7;
    --muted: #a0a7b4;
    --line: #303642;
    --accent: #7aa2ff;
    --accent-weak: #1d2a45;
    --danger: #ffb4ab;
    --ok: #86efac;
    --shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  }
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 32rem),
    var(--bg);
  font-family: var(--font);
}

a {
  color: inherit;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.container {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
}

.app-shell {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: var(--shadow);
}

.muted {
  color: var(--muted);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}