:root{--rhc-primary:#2563eb;--rhc-ink:#0f172a;--rhc-muted:#64748b;--rhc-border:#e2e8f0;--rhc-surface:#ffffff;--rhc-canvas:#f6f8fb;--rhc-radius:12px}*{margin:0;padding:0;box-sizing:border-box}body{background:radial-gradient(circle at 50% 0,rgba(37,99,235,.08),transparent 34rem),var(--rhc-canvas);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;min-height:100vh;display:flex;align-items:center;justify-content:center}.login-container{position:relative;z-index:1;width:100%;max-width:450px;padding:20px}.login-card{background:var(--rhc-surface);border-radius:var(--rhc-radius);box-shadow:0 18px 50px rgba(15,23,42,.08);padding:40px;border:1px solid var(--rhc-border)}.login-header{text-align:center;margin-bottom:40px}.login-icon-wrapper{width:56px;height:56px;margin:0 auto 20px;background:linear-gradient(135deg,var(--rhc-primary),#4f8df9);border-radius:var(--rhc-radius);display:flex;align-items:center;justify-content:center}.login-icon{font-size:1.7rem;color:white}.login-header h2{font-size:2rem;font-weight:700;color:var(--rhc-ink);margin-bottom:8px}.login-header p{color:var(--rhc-muted);font-size:.95rem}.form-label{font-weight:600;color:var(--rhc-ink);margin-bottom:8px;font-size:.9rem}.form-control{border:1px solid var(--rhc-border);border-radius:9px;padding:14px 18px;font-size:1rem;transition:all .3s ease;background:var(--rhc-canvas)}.form-control:focus{border-color:var(--rhc-primary);background:white;box-shadow:0 0 0 3px rgba(37,99,235,.12);outline:none}.btn-login{width:100%;padding:12px;font-size:1rem;font-weight:600;border-radius:9px;border:none;background:var(--rhc-primary);color:white;transition:all .2s ease;margin-top:10px}.btn-login:hover:not(:disabled){background:#1d4ed8;color:white}.btn-login:disabled{opacity:.7;cursor:not-allowed}.alert{border-radius:12px;border:none;padding:14px 18px;margin-bottom:20px}.alert-danger{background:#fee2e2;color:#991b1b}.info-text{text-align:center;margin-top:30px;padding-top:20px;border-top:1px solid var(--rhc-border)}.info-text small{color:var(--rhc-muted);font-size:.85rem}.spinner-border-sm{width:1rem;height:1rem}