:root {
    --brand-primary: #1c6f94;
    --brand-accent: #2f93b0;
    --brand-bg: #0f1b2a;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

.reg-shell {
    min-height: 100vh;
    background-color: var(--brand-bg, #0f1b2a);
    background-image: var(--brand-bg-image, none);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.reg-card {
    background: #fff;
    border-radius: 16px;
    padding: 2rem 2.25rem;
    width: min(100%, 480px);
    box-shadow: 0 24px 70px rgba(0, 0, 0, .35);
    color: #1f2937;
}

.reg-logo { max-height: 56px; margin-bottom: 1rem; }
.reg-card h1 { margin: 0 0 .75rem; font-size: 1.4rem; color: var(--brand-primary, #1c6f94); }
.reg-intro { margin: 0 0 1rem; color: #374151; }
.reg-muted { color: #6b7280; }
.reg-note { background: #fff7ed; border: 1px solid #fed7aa; border-radius: 8px; padding: .6rem .75rem; font-size: .88rem; color: #9a3412; }
.reg-err { color: #b91c1c; font-size: .9rem; }
.reg-code { font-size: 1.05rem; }

.reg-form { display: flex; flex-direction: column; gap: .7rem; margin-top: .5rem; }
.reg-form label { display: flex; flex-direction: column; font-size: .82rem; font-weight: 700; gap: .25rem; color: #374151; }
.reg-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
.reg-input {
    width: 100%;
    padding: .6rem .7rem;
    border: 1px solid #d1d5db;
    border-radius: 9px;
    font-size: .95rem;
    font-weight: 400;
}
.reg-input:focus { outline: 2px solid var(--brand-accent, #2f93b0); border-color: transparent; }

.reg-btn {
    margin-top: .6rem;
    padding: .75rem;
    border: 0;
    border-radius: 10px;
    background: var(--brand-accent, #2f93b0);
    color: #fff;
    font-weight: 800;
    font-size: 1rem;
    cursor: pointer;
}
.reg-btn:disabled { opacity: .6; cursor: default; }

@media (max-width: 420px) { .reg-grid2 { grid-template-columns: 1fr; } }

/* Meervoudige keuze (dagen / rollen) */
.reg-group { display:flex; flex-direction:column; gap:.4rem; }
.reg-group__label { font-size:.82rem; font-weight:700; color:#374151; }
.reg-choices { display:flex; flex-wrap:wrap; gap:.5rem; }
.reg-choice { display:flex; align-items:center; gap:.45rem; padding:.5rem .7rem; border:1px solid #d1d5db;
              border-radius:10px; font-size:.9rem; cursor:pointer; background:#fff; }
.reg-choice.is-on { border-color:var(--brand-accent,#2f93b0); background:#f0f9ff; font-weight:600; }
.reg-choice input { accent-color:var(--brand-accent,#2f93b0); }