:root {
  --ink: #1c2530;
  --paper: #f7f3ea;
  --moss: #4a6b4f;
  --moss-deep: #34503a;
  --clay: #b5572e;
  --border: #d8d2c2;
  --error: #a23b2e;

  /* added for the hub-home design (design_handoff_hub_home) */
  --ink-soft: #3a4555;
  --paper-dim: #efe9db;
  --gold: #c9a24b;
  --subject-english: #c9622a;
  --subject-math: #4a6fa5;
  --subject-japanese: #7a6a53;
  --subject-science: #5c8a3a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", sans-serif;
  background: var(--paper);
  color: var(--ink);
}
.wrap { max-width: 440px; margin: 0 auto; padding: 48px 20px; }
.wrap-wide { max-width: 720px; margin: 0 auto; padding: 32px 20px; }
h1 { font-size: 22px; font-weight: 800; margin: 0 0 4px; }
p.sub { color: #5a6472; font-size: 14px; margin: 0 0 28px; }
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  margin-bottom: 16px;
}
label { display: block; font-size: 12px; font-weight: 700; margin-bottom: 6px; color: #444; }
input, select {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 14px;
  background: #fdfcf9;
}
button {
  width: 100%;
  padding: 11px;
  border: none;
  border-radius: 8px;
  background: var(--moss);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
}
button:hover { background: var(--moss-deep); }
button.secondary { background: #fff; color: var(--ink); border: 1.5px solid var(--border); }
button.danger { background: #fff; color: var(--error); border: 1.5px solid var(--error); }
.err { background: #fdecea; border: 1px solid var(--error); color: var(--error); border-radius: 8px; padding: 10px 12px; font-size: 13px; margin-bottom: 14px; display: none; }
.divider { text-align: center; color: #999; font-size: 12px; margin: 20px 0; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); }
th { color: #777; font-weight: 700; text-transform: uppercase; font-size: 11px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 5px; font-size: 11px; font-weight: 700; background: #eef2ea; color: var(--moss-deep); }
.row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.muted { color: #777; font-size: 13px; }
a { color: var(--moss-deep); }