body { margin: 0; background: var(--background); color: var(--text); font-family: var(--font-body); }
.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; box-sizing: border-box; }
.auth-card, .admin-panel { background: var(--surface); border: 1px solid var(--outline); border-radius: 14px; box-shadow: 0 18px 50px rgb(0 0 0 / 10%); }
.auth-card { width: min(100%, 420px); padding: 2rem; }
.auth-brand { color: var(--primary); font-family: var(--font-display); font-size: 1.25rem; font-weight: 800; text-decoration: none; }
.auth-card h1, .admin-shell h1, .admin-panel h2 { font-family: var(--font-display); }
.auth-card form, .invite-grid { display: grid; gap: 1rem; margin-top: 1.5rem; }
.auth-card label, .invite-grid label { display: grid; gap: .4rem; font-weight: 700; }
.auth-card input, .invite-grid input, .invite-grid select { border: 1px solid var(--outline); border-radius: 8px; padding: .75rem; background: var(--surface-high); color: var(--text); font: inherit; }
.auth-card button, .admin-panel button { border: 0; border-radius: 8px; padding: .75rem 1rem; background: var(--primary); color: white; font-weight: 800; cursor: pointer; }
.admin-panel button.danger { background: #b42318; }
.auth-error, .auth-success { margin: 1rem 0; border-radius: 8px; padding: .8rem; }
.auth-error { background: #fee2e2; color: #991b1b; }
.auth-success { background: #dcfce7; color: #166534; overflow-wrap: anywhere; }
.admin-topbar { display: flex; justify-content: space-between; align-items: center; padding: 1rem 5vw; border-bottom: 1px solid var(--outline); background: var(--surface); }
.admin-topbar nav { display: flex; align-items: center; gap: 1rem; }
.admin-shell { width: min(1100px, 90vw); margin: 2rem auto; display: grid; gap: 1.5rem; }
.admin-panel { padding: 1.25rem; }
.invite-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: end; }
.user-list { display: grid; gap: .75rem; }
.user-row { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .8rem; background: var(--surface-high); border-radius: 8px; }
.user-row div { display: grid; gap: .25rem; }
.user-row span { color: var(--text-muted, var(--text)); font-size: .9rem; }
.delete-user-form { display: flex; align-items: end; gap: .4rem; }
.delete-user-form label { display: grid; gap: .2rem; font-size: .75rem; }
.delete-user-form input { width: 6rem; border: 1px solid var(--outline); border-radius: 6px; padding: .55rem; }
@media (max-width: 760px) { .invite-grid { grid-template-columns: 1fr; } }