:root {
  --bg: #0f1419;
  --fg: #e7ecf1;
  --muted: #8b98a5;
  --card: #1a222c;
  --line: #2a3542;
  --acc: #3d8bfd;
  --err: #f07178;
  --ok: #7fd962;
  --late: #e6b450;
  font-family: "IBM Plex Sans KR", "Pretendard", "Noto Sans KR", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 10% -10%, #1b2a3d, transparent), var(--bg);
  color: var(--fg);
  min-height: 100vh;
}
.top {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; letter-spacing: 0.04em; font-size: 1.15rem; }
nav a { color: var(--fg); margin-right: 1rem; text-decoration: none; opacity: 0.85; }
nav a:hover { opacity: 1; }
.logout { margin-left: auto; }
.logout button, button, .linkish {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--fg);
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  border-radius: 4px;
}
main { padding: 1.5rem; max-width: 960px; margin: 0 auto; }
.card {
  background: color-mix(in srgb, var(--card) 92%, black);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}
.card.narrow { max-width: 360px; margin: 3rem auto; }
h1 { font-size: 1.25rem; margin: 0 0 1rem; }
label { display: block; margin-bottom: 0.85rem; font-size: 0.9rem; color: var(--muted); }
input[type=text], input[type=password], select {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.5rem 0.6rem;
  background: #0c1117;
  border: 1px solid var(--line);
  color: var(--fg);
  border-radius: 4px;
}
.row { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.row input { flex: 1; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.55rem 0.35rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
.muted { color: var(--muted); font-size: 0.9rem; }
.err { color: var(--err); }
.inline { display: inline; margin: 0; }
.inline select { display: inline-block; width: auto; margin: 0; }
.pill { padding: 0.15rem 0.5rem; border-radius: 999px; font-size: 0.85rem; }
.pill.ok { background: color-mix(in srgb, var(--ok) 25%, transparent); color: var(--ok); }
.pill.late { background: color-mix(in srgb, var(--late) 25%, transparent); color: var(--late); }
button[type=submit] { background: var(--acc); border-color: var(--acc); color: #fff; }
.linkish { border: none; color: var(--muted); text-decoration: underline; padding: 0; }