:root{--auth-bg:#f6faf8;--auth-card:#ffffff;--auth-ink:#0f172a;--auth-muted:#64748b;--auth-border:#e5e7eb;--auth-shadow:0 8px 24px rgba(2,6,23,.06);--auth-radius:16px;--auth-accent:#11B7FF;--auth-accent-600:#0799DC;--auth-accent-ink:#ffffff;--auth-gradient:linear-gradient(135deg, #0f172a 0%, #1e293b 100%)}body{margin:0;background:var(--auth-bg);color:var(--auth-ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif}.auth-shell{min-height:100dvh;display:grid;place-items:center;padding:2rem}.auth-card{width:100%;max-width:560px;background:var(--auth-card);border:1px solid var(--auth-border);border-radius:var(--auth-radius);box-shadow:var(--auth-shadow);overflow:hidden}.auth-brand{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.5rem 1.75rem;background:var(--auth-gradient);text-align:center}.auth-logo{height:50px;width:auto;display:block;margin-bottom:.65rem}.auth-tagline{font-size:.95rem;color:#cbd5e1}.auth-body{padding:1.5rem}.auth-title{font-size:1.5rem;font-weight:700;margin:0 0 .75rem}.muted{color:var(--auth-muted);font-size:.95rem}.form-grid{display:grid;gap:.85rem;margin-top:1rem}.row{display:grid;gap:.75rem}.input,.button,.select{width:100%;border:1px solid var(--auth-border);border-radius:10px;padding:.7rem .9rem;font-size:1rem;background:#fff}.input:focus,.select:focus{outline:none;border-color:var(--auth-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--auth-accent) 25%,transparent)}.button{background:var(--auth-accent);color:var(--auth-accent-ink);border:none;font-weight:600;cursor:pointer;transition:background-color .15s ease,transform .02s ease}.button:hover{background:var(--auth-accent-600)}.button:active{transform:translateY(1px)}.button:disabled{opacity:.6;cursor:not-allowed}.link{color:var(--auth-accent);text-decoration:none;font-weight:600}.help{font-size:.9rem;color:var(--auth-muted)}.alert{border-radius:10px;padding:.75rem .9rem;margin:.75rem 0}.alert-success{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46}.alert-danger{background:#fff1f2;border:1px solid #fecdd3;color:#9f1239}