/* Admin portal — visually distinct from the student shell (a muted accent instead of
   --green) so instructors and students never mistake which mode they're in, while still
   reusing the same design tokens for everything else. */

.wrap { min-height: 100vh; background: var(--bg); color: var(--text); font-family: var(--sans); }

.loginWrap { height: 100vh; display: flex; align-items: center; justify-content: center; }
.loginCard { width: 360px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2rem; }

.brand { font-family: var(--mono); font-size: 1.2rem; font-weight: 600; color: var(--blue); display: flex; align-items: center; gap: 0.5rem; }
.subtitle { color: var(--text-2); font-size: 0.85rem; margin: 0.4rem 0 1.25rem; }

.input, .select {
  width: 100%; padding: 0.55rem 0.6rem; margin-top: 0.3rem;
  background: var(--surface2); border: 1px solid var(--border2); border-radius: var(--radius);
  color: var(--text); font-family: var(--sans); font-size: 0.9rem;
}
.label { display: block; font-size: 0.8rem; color: var(--text-2); margin-top: 0.9rem; }

.btn {
  padding: 0.55rem 0.9rem; background: var(--blue); color: #04141c; border: none;
  border-radius: var(--radius); font-weight: 600; font-size: 0.85rem; cursor: pointer;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btnSecondary { padding: 0.5rem 0.8rem; background: transparent; color: var(--text); border: 1px solid var(--border2); border-radius: var(--radius); font-size: 0.85rem; cursor: pointer; }
.btnDanger { padding: 0.5rem 0.8rem; background: transparent; color: var(--red); border: 1px solid var(--red); border-radius: var(--radius); font-size: 0.85rem; cursor: pointer; }

.header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 2rem; border-bottom: 1px solid var(--border); }
.nav { display: flex; gap: 1.25rem; }
.navLink { color: var(--text-2); cursor: pointer; font-size: 0.9rem; background: none; border: none; padding: 0.3rem 0; }
.navLinkActive { color: var(--blue); border-bottom: 2px solid var(--blue); }

.content { max-width: 1000px; margin: 1.5rem auto; padding: 0 1.5rem; }

.statGrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 0.75rem; margin-bottom: 1.5rem; }
.statCard { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; }
.statValue { font-size: 1.6rem; font-weight: 700; }
.statLabel { color: var(--text-2); font-size: 0.78rem; margin-top: 0.2rem; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.25rem; margin-bottom: 1.25rem; }
.card h2, .card h3 { margin-bottom: 0.75rem; font-size: 1rem; }

table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th { text-align: left; color: var(--text-2); font-weight: 600; padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--border2); font-size: 0.75rem; text-transform: uppercase; }
td { padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); }
tr:hover td { background: var(--surface2); }

.pill { display: inline-block; padding: 0.15rem 0.55rem; border-radius: 999px; font-size: 0.75rem; font-family: var(--mono); }
.pillOk { background: var(--green-dim); color: var(--green); }
.pillWarn { background: var(--amber-dim); color: var(--amber); }
.pillErr { background: var(--red-dim); color: var(--red); }
.pillMuted { background: var(--surface3); color: var(--text-2); }

.formRow { display: flex; gap: 0.5rem; align-items: end; margin-bottom: 1rem; flex-wrap: wrap; }
.formRow > div { flex: 1; min-width: 140px; }

.linkBtn { background: none; border: none; color: var(--blue); cursor: pointer; font-size: 0.85rem; padding: 0; text-decoration: underline; }
.errorBox { background: var(--red-dim); color: var(--red); border: 1px solid var(--red); border-radius: var(--radius); padding: 0.6rem 0.8rem; font-size: 0.85rem; margin-bottom: 1rem; }
.muted { color: var(--text-2); font-size: 0.85rem; }