*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font-body);background:var(--bg);color:var(--text);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem}
.card{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:2.5rem 2rem;width:100%;max-width:420px;box-shadow:var(--shadow-l)}
.logo{text-align:center;margin-bottom:1.75rem}
.logo-flag{font-size:3rem;margin-bottom:.5rem}
.logo h1{font-family:var(--font-display);font-size:1.6rem;color:#fff}
.logo p{color:var(--text-muted);font-size:.85rem;margin-top:.25rem}

/* Access chips */
.access-chips{display:flex;flex-wrap:wrap;gap:.35rem;justify-content:center;margin:.9rem 0 1.5rem}
.chip{padding:.25rem .65rem;border-radius:99px;font-size:.72rem;font-weight:600}
.chip-blue{background:#1e3a5f44;color:#60a5fa;border:1px solid #1e3a5f}
.chip-purple{background:var(--purple-soft);color:var(--purple);border:1px solid #b197fc55}
.chip-teal{background:var(--teal-soft);color:var(--teal);border:1px solid #00b4d855}
.chip-green{background:var(--green-soft);color:var(--green);border:1px solid #3dd68c55}

.field{margin-bottom:1.1rem}
.field-row{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:.4rem}
.field label,.field-row label{font-size:.8rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}
.optional-tag{font-size:.72rem;color:var(--text-dim);font-weight:500;text-transform:none;letter-spacing:0}
.field input{width:100%;background:var(--surface-2);border:1.5px solid var(--border);color:var(--text);border-radius:10px;padding:.7rem 1rem;font-size:1rem;font-family:var(--font-body);transition:border-color .2s}
.field input:focus{outline:none;border-color:var(--accent)}
.field input.error-input{border-color:var(--red)}
.field input.ok-input{border-color:var(--green)}

.hint{font-size:.74rem;color:var(--text-dim);margin-top:.3rem}

.btn-register{width:100%;background:var(--green);color:#0d1117;border:none;border-radius:10px;padding:.85rem;font-size:1rem;font-weight:700;font-family:var(--font-body);cursor:pointer;transition:all .2s;margin-top:.35rem}
.btn-register:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-register:disabled{opacity:.5;cursor:not-allowed;transform:none}

.alert{border-radius:8px;padding:.7rem 1rem;font-size:.88rem;margin-bottom:1.1rem;display:none;line-height:1.4}
.alert.error{background:var(--red-soft);border-left:3px solid var(--red);color:var(--red)}
.alert.success{background:var(--green-soft);border-left:3px solid var(--green);color:var(--green)}

.footer-links{text-align:center;margin-top:1.5rem;font-size:.83rem;color:var(--text-muted)}
.footer-links a{color:var(--accent);text-decoration:none;font-weight:600}
.footer-links a:hover{text-decoration:underline}

.divider{display:flex;align-items:center;gap:.75rem;margin:.2rem 0 1rem;color:var(--text-dim);font-size:.78rem}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--border)}

/* M156: base spinner look/size now comes from shared.css's canonical
   .spinner (18px, was this file's own 16px — a ~2px, imperceptible
   change); margin-right is real and page-specific, stays as a residual
   override — see css/login.css's identical comment. */
.spinner{margin-right:.4rem}

.strength-bar{height:4px;border-radius:99px;background:var(--surface-2);margin-top:.4rem;overflow:hidden}
.strength-fill{height:100%;border-radius:99px;transition:all .3s;width:0}

/* Honeypot — visually hidden, not display:none so bots still fill it */
.hp-wrap{position:absolute;left:-9999px;top:-9999px;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none}

/* Math challenge */
.math-q{background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:.45rem .85rem;font-size:.95rem;font-weight:600;color:var(--accent);display:inline-block;margin-bottom:.55rem}